Restoration of Immunologic Competence to Candida Albicans

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Restoration of Immunologic
         Competence to Candida Albicans
                                           C. Orian Truss, M.D.1

  The existence of Candida albicans in the human              paralysis, anergy, and unresponsiveness.
body is entirely compatible with a lifetime of                Disseminated tuberculosis (miliary) and lep-
excellent health. It also may at any time, under              romatous leprosy are illustrative of chronic
the influence of various factors, succeed in                  bacterial infections that persist in association
colonizing tissues, primarily of the intestinal tract         with, and possibly because of, an inadequate
and vagina. It then calls attention to its presence           immune response by the host. Chronic
by symptoms originating in the infected organs or             mucocutaneous candidiasis is a fungous
in remote organs related to immunologic and                   infection exhibiting the same phenomenon. The
possibly toxic responses to soluble yeast products,           immunologic impairment associated with these
and exerts a paralyzing influence on the                      infections has been reviewed previously (Truss,
capability of the host to mount an effective                  1978).
immunologic response. Restoration of immune                     It follows, then, that a pathogen is eradicated
competence to its genetically determined                      rather than tolerated when the immune system is
maximum should be the goal of treatment, and is               competent to respond effectively to the antigenic
the means by which both infectious and allergic               determinants of the organism. Such response
manifestations may be terminated.                             embraces both cellular and humoral components
                                                              of the immune system, even though one may
INTRODUCTION                                                  predominate in controlling a particular type of
   Persistence of a foreign organism in human                 pathogen.
tissues requires the absence of an effective                    Miliary tuberculosis, lepromatous leprosy, and
immunologic response to the exposed antigenic                 chronic mucocutaneous candidiasis are advanced
determinants of the pathogen. This loss or                    chronic      infections       with    widespread
absence of immunologic competence is variously                dissemination of the organism in the tissues; in
referred to as tolerance,                                     all three conditions it is often possible to
                                                              demonstrate impairment of the immune
                                                              response. Lymphocytes may fail to respond to
1
- 26)4 Highland Ave.,
                                                              the antigenic challenge in vitro, as in the MIF
Birmingham, Alabama 35205                                     and lymphocyte transformation tests. This
                                                              defective cellular (T-cell) response

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is often expressed in vivo by the failure of these          infecting the mucous membranes of the G.I.
antigens to elicit a delayed (tuberculin-type) skin         tract, vagina, skin and nails.
test response.
  Yet in each instance, in the more limited stage           RECOGNITION OF CHRONIC
of infection, these tests of T-cell response will           CANDIDIASIS
usually be normal. Indeed, many instances have                The concept of candidiasis (non-congenital) as
been documented of actual disappearance of                  a chronic systemic condition with multiple
previously positive lepromin or tuberculin skin             manifestations was previously presented at the
tests as the antigenic load reaches that critical           eighth Scientific Symposium, Academy of
point beyond which the immune system becomes                Orthomolecular Psychiatry, Toronto, Canada,
unresponsive; it is no longer "competent" with              May 1, 1977, and later published (Truss, 1978).
respect to the antigenic determinants of the                It is conceived as analogous to the more limited
organism in question. A state of "immunologic               but chronic forms of leprosy and tuberculosis.
tolerance", or "paralysis", is said to exist, and           The manifestations vary greatly from patient to
may be expected to persist as long as the                   patient, depending in part upon the location and
antigenic load remains undiminished.                        extent of tissue colonization, but principally
  The influence of antigenic load on the immune             upon the patient's immunologic and allergic
response was demonstrated by Budtz-Jorgensen                response to yeast antigens and to possible toxins
(1973). In children with chronic mucocutaneous              released by the fungus. Implicit in this concept is
candidiasis, treatment with amphoteracin-B was              that presently available tests of the immunologic
continued until the skin and mucous membranes               response to Candida may be normal, but with
were essentially free of the fungus. Before                 impairment of immunologic competence never-
treatment     both     MIF      and    lymphocyte           theless clearly indicated by the inability of the
transformation responses were absent, indicating            immune defenses to rid the host of the organism.
marked impairment of the T-cell response to the             It is "tolerated" in the tissues because the
antigens of this organism. As therapy with                  immune response is "paralyzed"
amphoteracin-B led to progressive clearing of the              If the term "immunologic tolerance" is re-
yeast from the tissues, competence returned and             stricted to conditions with abnormal in vitro tests
tests of the T-cell response became normal.                 of the immune response, these patients with
Following discontinuation of the drug, tissue               chronic infection but normal in vitro tests may be
involvement with Candida returned and the T-                said to be "clinically immunologically tolerant".
cells again lost their capacity to respond when             The eventual development of in vitro tests
the antigenic load again overwhelmed the                    allowing more subtle quantitation of the immune
immune defenses.                                            response should eliminate this distinction.
  Thus, loss of immune competence may be                      At the present time the recognition of patients
associated with chronic infection with Candida              with chronic candidiasis must be based on
albicans, just as with the tubercle and leprosy             clinical evidence and confirmed by therapeutic
bacilli. The latter two, however, are also                  trial; no help is available from the laboratory.
recognized as the cause of chronic illness that             Everyone has antibodies, and most have a
may persist for years in a more limited form                positive skin test; the yeast may be cultured from
without measurable loss of immune competence.               many asymptomatic individuals. Many patients
  With Candida no such chronic systemic disease             with this condition show an immediate (IgE)
has been recognized with the exception in                   skin hypersensitivity with a weak or absent
children of the congenital disease "chronic                 delayed response, but there are too many
mucocutaneous candidiasis". Except for this                 exceptions for this test to be definitive. A careful
condition and the occasional patient who                    history that traces the illness from its onset
develops Candida septicemia in association with             suggests the diagnosis. It invariably includes a
leukemia or similar disease characterized by an             story of
impaired immune response, it has been viewed as
an opportunistic organism characteristically
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futile efforts by many competent specialists to              presented (Truss, 1978).
establish an organic basis for the chronic illness,
and of the almost irresistible recommendation of             TREATMENT OF CHRONIC
psychiatric therapy.                                         CANDIDIASIS
  Attention in the history should be directed to the           Chronic antigenemia, occurring naturally or
influence of repeated pregnancies, birth-control             induced experimentally, may result in im-
pills, antibiotics, and cortisone and other                  munologic       unresponsiveness      to   specific
immunosuppressants. The onset of local                       antigens, including those of infectious origin.
symptoms of yeast infection in relation to the use           Antigens that evoke a normal immune response
of these drugs is especially significant and usually         initially may induce immunologic tolerance
precedes the systemic response. Repeated courses             when antigenic exposure becomes of the
of antibiotics and birth-control pills, often                quantity and duration critical to its
punctuated with multiple pregnancies, lead to                establishment. With its immunologic defenses
ever-increasing symptoms of mucosal infections               neutralized, the host becomes incapable of
in the vagina and gastrointestinal tract. Ac-                eliminating from its tissues the source of
companying these are manifestations of tissue                tolerizing antigen, insuring perpetuation of the
injury based on immunologic and possibly toxic               compromised immune response and persistence
responses to yeast products released into the                in the tissues of the infectious agent.
systemic circulation. Many infections are                      Total loss of immune capability is suggested
secondary to allergic responses of the mucous                by the terms "immunologic paralysis" and
membranes of the respiratory tract, urethra, and             "immunologic unresponsiveness"; "immunologic
bladder, necessitating increasingly frequent                 tolerance" may perhaps better describe a
antibiotic therapy that simultaneously aggravates            continuing but ineffectual immune response that
and perpetuates the underlying cause of the al-              "tolerates" rather than rejects the organism. The
lergic membrane that allowed the infection.                  "ebb and flow" in the opposing forces of foreign
Depression is common, often associated with                  invasion and immune rejection is reflected
difficulty    in    memory,       reasoning     and          clinically in the remissions and exacerbations
concentration. These symptoms are especially                 characteristic of many chronic illnesses. The
severe in women, who in addition have great                  incompleteness of "paralysis" is suggested by
difficulty with the explosive irritability, crying,          fluctuations both in clinical manifestations and
and loss of self-confidence that are so                      in such simple tests of normal immune activity
characteristic of abnormal function of the ovarian           as the white blood cell count, skin test response,
hormones. Poor end-organ response to these                   body temperature, and antibody titer, as well as
sex hormones is confirmed by the common                      by the inconstancy of indicators of abnormal
association of acne, impairment or total loss of             immunologic activity, e.g., immune complex
libido, and the whole range of abnormalities of              deposition, RA factor, LE cell, ANA. The
menstrual bleeding and cramps, as well as a very             pattern of the clinical response may undergo
high incidence of endometriosis in those who                 constant change as the immune system reacts
have undergone hysterectomy.                                 both normally and abnormally to the qualitative
  Many of these patients also start developing               and quantitative variations in antigenic
multiple intolerances to foods and chemicals,                stimulation.
making it increasingly difficult for them to live in           Persistence of Candida albicans in the tissues
a normal environment. Many or all of these                   for prolonged periods typifies these principles.
intolerances disappear as the yeast problem is               Chronic symptoms representing systemic
brought under control.                                       responses to soluble yeast products accompany
  The purpose of this paper is to outline ex-                manifestations referable to the infected sites.
periences in the treatment of chronic candidiasis            Both fluctuate according to the effectiveness of a
by measures designed to restore immunologic                  weakened immune response that is often
competence to this yeast. Detailed discussion of             influenced by factors directly favorable to yeast
the manifestations and diagnosis has been                    growth.

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An analysis of such factors allows a logical                    manifestations.
approach to therapy, with each aspect designed                    This preference for carbohydrate has been
either to retard the rate of yeast proliferation or to          documented objectively in a strain of Candida
strengthen the immune response to its presence.                 albicans reported in Japan; this strain has the
Acting together, these measures interrupt the self-             unique ability to ferment carbohydrate to ethyl
perpetuating cycle of tissue invasion and                       alcohol within the intestinal tract. A rapidly
tolerance-inducing antigenemia. In time both                    rising level of alcohol is measurable in the
local and systemic manifestations cease with                    bloodstream following the ingestion of a
eradication of yeast from the tissues—the                       measured amount of glucose or other
ultimate goal of therapy.                                       carbohydrate. Other strains apparently lack the
  A program that has proved effective in restoring              enzymes necessary to complete the conversion
immunologic competence to Candida albicans is                   to alcohol.
summarized in Table 1 and described in the                        In addition to limiting total carbohydrate
section following. of carbohydrate, often                       intake, avoidance of foods with a high yeast
accompanied by exacerbation of their systemic

                                                           TABLE 1

   TREATMENT OF CHRONIC CANDIDIASIS

  I. Non-immunologic measures that retard yeast proliferation
     A. Passive: measures of avoidance
  1. Diet: low in carbohydrates and in foods with high yeast or mold content
  2. Antibiotics
  3. Contraceptive hormones
  4. Environments characterized by high mold-spore exposure
  B. Active: therapy with anti-fungal drugs: nystatin, amphotericin-B, flucytosine, ketoconazole

  II. Measures to strengthen the immune response of the host
  A. Passive (avoidance): immunosuppressant drugs
  B. Active
  1. Diet: adequate nutrients for proper immune response
  2. Correction of unrelated conditions that impair the immune response, e.g., hypothyroidism
  3. Use of extracts of Candida albicans
  a.                Extracts
  b.                Testing
  c.                Treatment

                                                                 or mold content is helpful. The most important
I. Non-immunologic Measures that Retard                          of these include breads and pastries with yeast
Yeast Proliferation                                              (which should be avoided in any event as part of
A. Passive: Measures of Avoidance                                the carbohydrate restriction), mushroom (a
1. Diet                                                          fungus), aged cheeses, and alcoholic beverages
  The first component of the "avoidance" aspect of               with their high yeast content.
yeast control embodies certain modifications of                    It is difficult to evaluate the benefit from these
the diet. Of the three classes of foods, yeasts                  dietary restrictions when other measures are
ferment fat and protein poorly, but thrive on                    simultaneously alleviating symptoms. But in
carbohydrate. Limiting the intake of sweets and                  theory as well as practice, diet is important,
starches deprives Candida of the nutrient that                   especially early in treatment. Occasional
allows its maximum multiplication. Most patients                 departures seem not to aggravate symptoms
have observed increased intestinal gas and "bloat-               noticeably, in contrast to the continuous high
ing" following the intake of large quantities                    intake of these foods.
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  Additional      benefits  may     derive     from      control pills", whether used for contraception,
carbohydrate restriction. Many patients are allergic     prevention of menstrual cramps, or regulation
to the cereal grains, while others exhibit an            of menstrual irregularity. Avoidance of these
abnormal response to carbohydrate in the glucose         hormones is mandatory if chronic candidiasis
tolerance test. Carbohydrate restriction may             is to be successfully controlled.
eliminate such food allergens from the diet, and           Their use is associated with acute vaginal
also may correct the excessive insulin response          candidiasis in approximately thirty-five percent
that results in hypoglycemia.                            of women; it is quite probable that in the
                                                         remainder, subtle changes occur in those
2. Antibiotics                                           immunologic responses appropriate for control
   The use of antibiotics should be limited to the       of this yeast. Chronic yeast vaginitis tends to
fullest possible extent, avoiding in particular the      be at its worst when progesterone levels are
"broad-spectrum" drugs that destroy the gram-            high, as in pregnancy and the luteal phase of
negative intestinal and vaginal bacteria. At those       the menstrual cycle; therefore the progesterone
times when their use is dictated by culture and          component of contraceptive hormones may
sensitivity studies, stimulation of the yeast may be     well be responsible for their adverse effect.
countered with concomitant nystatin therapy, with        The more severe cases of vaginitis often are
discontinuation of the antibiotic as soon as pos-        associated with depression, emotional lability,
sible. For a limited time overt symptoms of              and an explosive irritability, suggesting that an
increased yeast growth can often be prevented in         abnormal vaginal epithelium is but part of a
this way, although they may erupt in fulminant           general inadequacy in the response to these
form if the antibiotic therapy is too prolonged.         hormones.
(This was illustrated in a highly sensitive patient        This association of yeast vaginitis and "em-
who was protected by sixteen nystatin tablets daily
                                                         otional" symptoms is worthy of special com-
during eight days of unavoidable Ampicillin              ment. They frequently appear for the first time
therapy. On the ninth day explosive diarrhea,
                                                         in healthy young women soon after their first
pruritis ani, and intense vaginitis erupted
                                                         use of these contraceptive hormones. That they
simultaneously and persisted long after the
                                                         are symptoms of poor hormone function rather
Ampicillin was discontinued.)
                                                         than "neurotic" or "psychiatric" in origin is
   The long-term use of tetracycline for the             clearly indicated by their absence before the
treatment of acne is particularly insidious and must     use of these hormones and their disappearance
be discontinued in these patients. Another               soon after their use is discontinued. In this
condition in which antibiotics are often needlessly      situation no physician would doubt the relation
used is in the treatment of urethritis. Although due     of these symptoms to improper hormone
to the generalized Candida infection in the vulvo-       function. Yet the same symptoms in a young
vaginal area, because of the dysuria and frequency       woman not taking hormones are almost always
it is often misdiagnosed as cystitis and treated with    considered "psychoneurotic" in origin, leading
antibiotics for weeks or months, despite the             to a futile psychiatric approach to therapy. The
absence of a clinical response. This serves only to      recognition of these as symptoms resulting
aggravate further the yeast infection that is the        from interference with hormone function is
actual cause of the discomfort. Finally, viral           vital in recognizing this syndrome.
illnesses are often treated with antibiotics; a great
reduction in the use of these drugs would result
                                                         4. Environments Characterized by High
from the careful differentiation of these from bact-
                                                         Mold-Spore Exposure
erial infections.
                                                           Many molds that do not exist within the body
3. Contraceptive Hormones                                have some degree of cross-antigen-icity with
Rivaling antibiotics in impact on the immune             Candida albicans. Patients often
containment of Candida have been the “birth

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notice aggravation of their symptoms in en-                   demonstrated that Candida albicans penetrates
vironments characterized by a high content of                 the epithelial cells of the mucous membranes, to
mold spores; basement apartments and homes                    persist therein as an intracellular organism.
with a chronic moisture problem are frequently                Thus even this limited absorption into the
seen examples. Homes near poorly-drained areas                bloodstream may extend the effectiveness of
or bodies of water are likely to have a high count            nystatin to the more protected intra-epithelial
of mold spores. Correction of drainage problems               cell sites and may account for the additional
is helpful, as is proper control of the level of              benefit noted in certain patients with higher
humidity in the home. Occasionally it is necessary            doses. Even without penetration of the epithelial
to change homes.                                              cell itself, the drug should encounter yeast cells
                                                              in transit to this ultimate intra-epithelial dest-
B. Active: Therapy with Anti-fungal Drugs                     ination. Also theoretically it is possible that
  Drugs that kill or suppress the growth of                   yeast cell destruction in these deeper tissues is
Candida albicans in vivo are of great benefit; only           accomplished by lower doses in that this drug is
nystatin will be considered in detail. Other drugs            fixed by the yeast cell wall, and perhaps could
are available but heretofore their toxicity has               accumulate slowly therein until of sufficient
limited their use to life threatening Candida                 concentration to initiate cell leakage and death.
infections. Indications for their use should widen              Immunologic tolerance results from long-term
with increased understanding of the relation of               exposure to an antigen either in low or high
yeast to systemic illness, both physical and                  amounts. Interruption or reduction of such
mental. Drugs not presently available may serve               chronic antigenemia is essential in the
better than nystatin to eradicate yeast from deeper           restoration of the capacity of the immune
sites within the tissues; ketocona-zole is a                  system to respond competently to the antigen.
promising example.                                            To achieve maximum reduction in the antigenic
  Nystatin is valuable both diagnostically and                load, nystatin must be brought into contact with
therapeutically in human candidiasis. It is ab-               the greatest possible number of yeast cells,
sorbed poorly from the intestinal tract, and is               hence the necessity for these various
generally considered ineffective for other than               preparations. Candida lives predominantly in
yeast infections of mucosal and skin surfaces,                the gastrointestinal tract and vagina. A negative
where it may be brought into contact with the                 culture for yeast does not establish its absence
organism. As a suspension, it contacts yeast on the           in a given location. For reasons that at present
oral and esophageal mucous membranes; in tablet               are obscure, it frequently fails to grow with
form it reaches the remainder of the intestinal               present culture methods, even though it may do
mucosa. Suppositories are necessary for vaginal               so after stimulation with tetracycline for two to
yeast suppression, and occasionally the cream or              three days.
ointment is helpful for yeast infections of the
                                                                For these reasons nystatin in several forms
vulva, skin, or nails.
                                                              simultaneously is used even if cultures are not
  Nystatin is fixed in the wall of yeast cells; this
                                                              positive from each site. This is particularly
leads to increased permeability with efflux of vital
                                                              important initially when attempting to confirm
cellular components and ultimate cell death.
                                                              the diagnosis by therapeutic trial. The
Absorption from the gastrointestinal tract is poor;
                                                              combination may subsequently be modified in
a dose of approximately eight million units
                                                              each patient according to the location of
(sixteen tablets) results in low plasma levels in the
                                                              mucosal symptoms. The preparations and
range of 1 to 2.5 micrograms per mililiter
                                                              dosages that have proved useful may be
(Goodman and Gilman, 1975). Even this low level
                                                              summarized as follows:
may be of some benefit, however, since in vitro
                                                                (a) Oral suspension: Since the tablet passes
concentrations between 1.5 and 6.5 micrograms
                                                              immediately into the stomachy the liquid must
per milliliter may be toxic to Candida albicans
                                                              be used to coat the mucous
(Goodman and Gilman, 1975). This is an
important point. Electron microscopy has
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membrane from mouth through esophagus. One                     (c) Vaginal suppositories are important in the
teaspoon four times daily is adequate. The                   initial treatment and are required intermittently in
patient is instructed to use it as a mouthwash for           most women. This is especially true from puberty
one to two minutes, attempting to achieve                    to menopause; the high progesterone levels
contact with the maximum area of mucous                      following ovulation and during pregnancy often
membrane. As it is then swallowed, the                       are associated with an increase in yeast
esophageal mucosa becomes coated with the                    symptoms. The use of vaginal suppositories
drug. The patient is advised to avoid food or                should be continued during the menstrual period,
drink for one to two hours after each dose in                blood being an excellent nutrient for yeast.
order to obtain maximum benefit. Use of the                    (d) Nystatin as a cream or ointment is pre-
liquid is important since the lower part of the              scribed when there are symptoms or signs of
esophagus is a favorite site of yeast growth. In             external yeast growth. In practical terms this is
addition to reducing the release of yeast antigens           usually limited to the vulvar area, although
from this area, nystatin administered in this way            occasionally infection may be noted on nails, at
will often relieve symptoms of "heartburn,"                  the corners of the mouth, or as a "diaper rash."
"indigestion," etc. that may have been present                 These, then, are the various preparations of
for years.                                                   nystatin that have been so valuable both in
  (b) Nystatin tablets are less expensive than the           therapeutic trials and in the ultimate restoration
liquid and are used in its place to the fullest              of immune competence to Candida albicans.
possible extent, although both are used initially.           Other more toxic drugs are available, but the
One tablet four times daily is a suitable starting           indication for their use must be weighed against
dose. An increase to two tablets four times daily            their greater toxicity. Additional drugs of low
is recommended after three to six weeks except               toxicity are available for vaginal yeast infections
when the initial dose proves adequate for                    and they can be tried if vaginal symptoms
effective control of symptoms. After three to six            respond poorly to nystatin. Development of
weeks at this level, further increases to twelve or          Candida albicans resistance to nystatin is said to
sixteen tablets in divided doses may be tried. If            be rare, but this should be reevaluated.
no additional benefit is derived; the dose is                  One phenomenon deserving emphasis is seen
reduced to the least number that achieves                    occasionally when therapy is initiated. It suggests
maximum symptomatic relief. Nystatin is well-                the Herxheimer reaction, originally described
tolerated by most patients. Nausea or mild                   when syphilis was treated with the arsenicals, and
diarrhea may occur with higher doses. One                    consisting of a febrile reaction thought to result
patient complained of leg cramps accociated                  from the massive absorption of dead spirochetes
with nystatin therapy. Slight skin rash has been             as well as to activation of foci of syphilitic
seen twice after long-term use. All such                     infection (Herxheimer and Martin, 1926). It is
intolerances have cleared within several days                important to recognize and distinguish this trans-
after reduction of the dose or discontinuation of            ient occurrence; otherwise it will appear to be
the drug; no serious toxicity has ever been en-              allergy or intolerance to nystatin and the patient
countered.                                                   will be deprived of the benefit of this valuable
  A special problem may occur when initiating                drug. The reaction is usually limited to a flu-like
therapy in the patient with multiple food and                syndrome of mild generalized aching and low-
chemical        intolerances.     The      different         grade fever, but may also encompass an
preparations may be tried individually in small              exacerbation       of   the     patient's   allergic
initial doses. For example, the liquid may be                manifestations. This was exemplified by a patient
tolerated by a patient who reacts to excipients in           who developed a temperature of 101 degrees
the tablet. Once a starting point is achieved,               orally with associated generalized aching,
increased tolerance to these preparations will               beginning the first twenty-four
coincide with general improvement in the
intolerances to foods, drugs, and chemicals.
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RESTORATION OF IMMUNOLOGIC COMPETENCE

hours of nystatin therapy. Within three days he              improved by these valuable drugs. Symptoms in
exhibited a recurrence of the acute agitation                such autoimmune
typical of his long-standing mental illness                  and allergic conditions result largely from in-
considered to be "schizophrenia." If indeed this             flammation induced by some type of abnormal
was an example of the Herxheimer                             immune response. Suppression of these abnormal
phenomenon, it established the relation of yeast             immune responses cannot be achieved without at
products to this patient's chronic mental                    once suppressing normal immune mechanisms
symptoms. The simultaneous diminution of                     vital to the containment of yeast. With the
multiple "mush/' stools in this patient indicates            etiologic agent in these cases an organism living
their relation to yeast infection of the bowel and           within the body, steroid therapy actually con-
further strengthens the concept that Candida is              stitutes an obstacle to the ultimate goal of clearing
etiologically related to his symptoms.                       the tissues of the source of the incriminated
  Thus, when symptoms follow immediately                     antigen.
the institution of nystatin therapy, it is. unlikely           Judicious use of this type therapy is essential in
that a drug allergy is the cause. If such a                  many situations. Minimal doses with strict
reaction aggravates or reproduces the patient's              indications, perhaps in short courses rather than
previous chronic symptoms, it is confirmatory                continuously, should minimize the impact of these
of their relation to Candida. This type of                   drugs on immune competence to Candida.
reaction to treatment will only be seen initially,           Meanwhile more specific measures for control of
and is not at all common. The possibility of this            yeast should gradually obviate the need for the
occurrence, however, suggests the wisdom of                  continued use of these drugs in conditions caused
initiating therapy with a low dose of nystatin in            by Candida.
patients whose symptoms would be particularly                  Similar reasoning is applicable to other forms of
unpleasant if aggravated.                                    immunosuppressive therapy. When used in
                                                             conjunction with organ transplantation, treatment
II. Measures to Strengthen the Immune Re-                    of autoimmune disorders, etc., the underlying
sponse A. Passive: avoidance                                 indication for immunosuppression will almost
  Immunosuppressants comprise a third class of               always override all other considerations. When
drugs associated with a breakdown in the                     Candida albicans is not etiologically related to the
immune response to yeast. By definition these                condition requiring this type therapy, induced
are certain to enhance yeast growth by their                 exacerbation of candidiasis is of little
non-specific suppression of the immune                       consequence other than for increasing the risk of
response.                                                    fatal septicemic spread in patients often already
  The most widely used drugs in this category                debilitated and often immunocompromised.
are     the    adrenocorticosteroids.     Their.
effectiveness in suppressing the immune re-                  B. Active 1. Diet
sponse has led to their extensive use in allergic
and autoimmune disorders. Suppression of an                    Malnutrition may prohibit the normal immune
abnormal immunologic phenomenon is                           response; therefore it is mandatory to detect and
beneficial with respect to the patient's                     correct deficiencies in those nutrients essential for
symptoms as long as therapy is continued. But                the proper function of cells of the immune system.
if the abnormal immunological response in
question represents a response to Candida                    2. Correction of Unrelated Conditions
antigens, as suggested previously, (Truss,                     Similarly, endocrine or other metabolic ab-
1978), the immunosuppression induced by the                  normalities may impair the immune response,
steroid allows increased growth of yeast, even               hypothyroidism being a common example. These
as the patient's condition is temporarily                    should be identified and corrected when possible.
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3. Use of Extracts of Candida Albicans                      upon the batch used, the same patient will,
  A rational approach to the use of antigenic               according to skin test, vary from non-allergic to
stimulation (vaccine therapy) in the restoration            highly allergic, with an immune response ranging
of immunologic competence to Candida                        from strongly positive to totally absent. The fact
albicans in humans must be based primarily                  that these two types of skin response may vary
upon experiments in animals in the induction                independently suggests the possibility that
and termination of immunologic tolerance,                   different antigens are involved.
supplemented by observations in humans of the                 (b) Testing: Testing normally begins with .1 cc
natural history of diseases that eventuate in the           intracutaneously of the 1:1,000 dilution of the
state of tolerance.                                         1:10 concentrate. This is observed for immediate
  Immunologic mechanisms responsible for                    hypersensitivity, Arthus, and twenty-four and
"unresponsiveness" to "foreign" antigens appear             forty-eight hour delayed immune responses. If
to be similar to those involved in the                      the immediate hypersensitivity reaction is
maintenance of tolerance to "self" antigens.                negative and the delayed no more than
Evidence suggests that both depend upon the                 moderately positive, the test is repeated using the
continued       presence     of     thymus-derived          1:100 dilution, again to evaluate the patient for an
suppressor cells which specifically prevent an              allergic response. However, if the twenty-four or
immunologic response that in their absence                  forty-eight hour delayed response is strongly
would otherwise occur. Thus tolerance, even to              positive to the 1:1,000 dilution, testing with the
"self antigens, seems to be an active rather than           1:100 strength is omitted because of the
passive process.                                            probability of an excessively large and painful
  Consideration of the experimental manip-                  delayed reaction. In any event, a positive test for
ulations that first cause loss of and then re-              immediate hypersensitivity is not essential for the
storation of responsiveness to an antigen                   diagnosis. A negative test reflects only a lack of
suggests that the basic requirements for tol-               response to the antigens in the particular extract.
erance induction are met by chronic exposure to               A word of caution is in order regarding testing.
Candida antigens when clinical conditions are               The 1:10 undiluted concentrate should not be
suitable for its continued presence in the tissues.         used. Too large an amount of antigen may lead to
  Similarly, experimental techniques for the                immune-complex deposition. A severe Arthus
"breaking" of tolerance illustrate principles               reaction beginning at two to four hours,
applicable in the use of vaccines as an aid in the          consisting of a diffuse, indurated, itching,
restoration of immunologic competence to                    erythematous area several inches in diameter,
Candida albicans in the human.                              may evolve into ulceration. This may be
  (a) Extracts: Because of the marked variation             accompanied by a systemic allergic reaction such
and irreproducability in the complement of                  as occurred in one patient tested in this way by
antigens among strains of Candida, each new                 her physician; a very large Arthus reaction
batch (lot number) should be tested for skin                occurred, and within forty-eight hours she
reactivity on known reactors. This applies                  developed severe tinnitus and vertigo which
equally to successive batches whether from the              required fully two years to subside completely.
same or different companies. The importance of                Using this protocol, there have been no
this "bio-assay" was illustrated recently when              problems testing in this manner. Many allergists
fresh extracts obtained from four different                 use different techniques for testing. Three
suppliers were tested simultaneously in a                   patients described severe systemic responses to
number       of     patients     with   previously          sub-lingual testing, and two patients told of
demonstrated           reactivity.      Immediate           similar reactions when tested by the serial-
hypersensitivity reactions ranged from 0 to                 dilution "neutralizing" technique. These cases
++++. This same inconsistency applied as well               may be exceptions, and it would be helpful to
to the delayed skin test, considered indicative of          know the experience of allergists who use these
the cellular immune response. Thus, depending               techniques in the
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diagnosis of Candida albicans sensitivity.                  or predicts in any way the response of the patient
  Interpretation of test results: Despite the               to treatment.
inconsistencies in extracts and the large number              Likewise thus far unsuccessful has been the
of healthy individuals exhibiting positive tests,           attempt to choose, based on skin test, the
efforts are continuing to find correlations of test         particular batch of vaccine to which an individual
results to aid both diagnosis and treatment. At             patient might best respond. Efforts along this line
the present time, however, tests do not                     are continuing, because in theory a patient should
distinguish between the symptomatic and                     respond differently therapeutically to two
asymptomatic individual with respect to                     vaccines that elicit sharply differing immediate
Candida; neither are they of help in the choice             and/or delayed skin reactions.
of extract strength with which to treat; and they             Also unrewarding has been the steady increase
offer no clue as to the speed or degree of                  in extract strength that is often successful with
response to therapy. Thus, at the present time              conventional injection therapy for inhalant
they are of no help in the diagnosis, treatment,            allergy. Although the patient may improve with
or prognosis.                                               each increment in dose, symptoms soon return
  (c) Treatment: The injection of an extract of             and a further increase is required; eventually the
Candida albicans constitutes an attempt to                  maximum available concentration is reached and
strengthen the immune response to the yeast in              no further increase is possible. The immune sys-
a patient who is actively infected by the                   tem seems to adjust to each level of stimulation if
organism. Symptoms, both infectious and                     given time. In most patients, therefore, changes in
allergic in nature, exist in a setting of an                extract strength are made infrequently, and only
impaired immunologic capability. Marked                     when no response is apparent at the previous
variation is exhibited among patients in the                level.
pattern of their allergic responses. It is not                Extensive experience with concentrations from
surprising, therefore, that in this unique sit-             10-2 to 10-30 has led to the choice of extracts in
uation it has proved impossible to standardize a            the 10-5 to 10_15 range, although occasionally
program of injection therapy. The strength of               concentrations outside of this range are
the extract and the interval between injections             employed. One-tenth milliliter (.1 ml)
varies not only among patients, but also in the             subcutaneously twice weekly is a suitable starting
same patient at different stages of recovery; it is         point, but the interval may be varied in either
as though the strength of antigenic stimulus                direction. One departure from this basic schedule
must be matched roughly to the status of the im-            has frequently proved useful, often affording
mune response. Immunologic techniques may                   dramatic relief of acute symptoms. This consists
someday aid in explaining these variations and              of dividing the dose into several injections given
in establishing for each patient the optimal                at thirty to forty-five-minute intervals. Although
protocol for immunization; at present this must             the total dose may be virtually unchanged, the
necessarily be based on empirical observations.             patient's response may be quite different. For
The presentation to follow summarizes                       example, ten doses of .1 ml each of the 10~15
experiences and present methods of applying                 strength contain the same total amount of antigen
immuno-therapy in an overall program aimed at               as .1 ml of the 10-14 strength—still an extremely
restoring to its maximum the immune capability              small amount. Administration of two to four in-
with which an individual is genetically                     jections spaced this way will often afford relief
endowed.                                                    not provided by a single injection of either of the
  Perhaps the best way to begin is to emphasize             two adjacent dilutions. This technique has proved
several principles that have not proved useful. It          very valuable diagnostically as well as in
has already been pointed out that the choice of             conjunction with efforts to alleviate such acute
extract strength cannot be established by skin              problems as migraine headache, bladder or
reactions, and that no combination of immediate             urethral
and delayed skin tests indicates whether to treat,
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ORTHOMOLECULAR PSYCHIATRY, VOLUME 9, NUMBER 4, 1980, Pp. 287-301

spasm, or joint manifestations.                              either antigen or antibody excess. (The immune
  A tendency to overdo this departure from the               response comprises much more than the antigen-
regular schedule should be resisted because of its           antibody relationship, and it is highly improbable
effect on the long-range immune response.                    that this explanation is more than a useful
Patience is essential to allow the immune system             framework for necessary adjustments in response
time to adapt to and begin its response to                   to a changing immunologic picture.)
antigenic stimulation at the chosen concentration              In certain patients an additional modification of
and interval.                                                the basic schedule is occasionally necessary, and
  One pattern of response occurs sufficiently                again, an explanation based on immunologic
often to merit special discussion. Marked, often             evidence is not possible. Certain patients will
dramatic improvement may occur in the first few              notice complete relief of symptoms following the
weeks of treatment using the same dilution of                antigen injection. However, if they are still
antigen. Then the patient may report a symptom               asymptomatic at the time of the next injection,
occurring as a result of the injection, often within         symptoms may recur within a few minutes of the
thirty minutes or so; it may be a "stopped-up                injection. Such cases are better managed by de-
nose,” or “extreme sleepiness." Such a symptom               laying their injection until symptoms have started
will clear almost immediately if the identical               to return, at which point relief rather than
dose is repeated as soon as the symptom occurs.              aggravation will occur. (Using the same immune-
Thus the dose to which the patient has responded             complex hypothesis, the asymptomatic state
with steady improvement suddenly results in a                represents the absence of significant antigen or
symptom that is relieved by giving more antigen.             antibody excess, at which point antigen
At that point the amount of antigen given rout-              administration results in antigen excess and onset
inely should be increased until this minor side              of symptoms. On the other hand, the return of
effect ceases. A change to the next stronger                 symptoms signals the beginning of antibody
concentration is usually effective. (Example: .1             excess and injection of antigen, if delayed until
ml of 10~15 twice weekly leads to steady                     this time, again restores antigen-antibody
improvement. After eight to ten weeks the above              balance.)
phenomenon occurs and the symptom is cleared                   In summary, immune therapy with Candida
by repeating the .1 ml of 10-15. Thereafter treat            albicans extracts consists of arbitrarily choosing a
with .1 ml of the 10~14 strength twice weekly.)              starting dilution and observing the patient's
This unusual reaction is never serious, and                  response over a period of a few weeks, adjusting
usually occurs only once in a given patient, most            the strength and interval of extract accordingly. It
often after the first few weeks of treatment. Since          is important to explain to the patient that
it is seen in the clinical setting of a much                 symptoms will recur frequently, but that with
improved patient, it seem logical that it is                 patience and time, as the resistance to yeast
occurring in a setting of an improving im-                   gradually increases, relapses will become less
munologic response to the vaccine. Speculation               frequent and less severe. The situation is unique.
concerning the responsible immunologic                       An effort is being made to rekindle the immune
mechanism is futile. Since more antigen relieves             response to an organism that is actively infecting
the symptom, it is useful to think in terms of the           the patient. It is both an infection and a systemic
balance between antigens and antibodies in the               allergic and/or toxic response to metabolites of an
serum; as the antibody response becomes                      organism that has been able to perpetuate its
stronger, symptoms result because an imbalance               presence in the tissues by effectively neutralizing
in the direction of antibody excess perhaps leads            host defenses.
to immune-complex deposition. The injection of
more antigen returns the antigen-antibody                    DISCUSSION
balance to the zone of equivalence.                          One method for the experimental induction
Experimentally immune complexes are
much more damaging if given in the zones of

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of immunologic tolerance is to expose an animal            ing antigen, which may be defined as a protein
repeatedly to soluble protein antigen below the            with determinants that are shared with the
threshold dose that is immunogenic (Benacerraf             tolerated protein as well as others that are
and Unanue, 1979). This "low zone" tolerance is            specific to itself. For maximum effectiveness the
usually restricted to the T-cell, the B-cell               degree of antigenic identity should be at least 15
retaining or recovering the ability to respond             percent but not more than 75 percent. Current
with antibody production.                                  theoretical explanations for this phenomenon
  Colonization of tissues by Candida albicans              have been presented in a recent concise review
provides in the human the counterpart of this              (Benacerraf and Unanue, 1979). T-helper cells
experimental protocol for the induction of T-cell          that are tolerant and unresponsive to shared
tolerance. The presence in human sera of 79                determinants will respond to those determinants
immunologically distinct antibodies to Candida             specific to the cross-reacting protein. If there are
indicates the chronic release of a complex                 B-cells capable of cooperating with these
mixture of soluble proteins, thus simulating the           stimulated T-helper cells, they will produce
conditions for experimental tolerance induction            antibodies that are effective in terminating
by chronic exposure to low doses of antigen.               tolerance.
Studies reported by Budtz-Jorgensen in children              An exception that has been described to this
with     advanced       chronic    mucocutaneous           general principle could well be important in the
candidiasis demonstrated that in this condition            clinical setting of candidiasis. If the tolerated
tolerance is primarily in the T-cell. When the             protein is injected simultaneously, the cross-
fungus was suppressed by am-photeracin-B                   reacting protein fails to terminate tolerance, the
therapy, the ensuing reduction in antigenic load           theory being that the shared determinants
led to conversion from negative to positive of in          temporarily toler-ize the B-cells, rendering them
vitro tests of the T-cell response without                 incapable of responding to the new T-helper
detectable change in antibody titers. Upon                 cells. In patients the various factors that stimulate
withdrawal of amphot-eracin-B, these in vitro              yeast growth should result in the increased re-
tests reverted to negative with relapse and spread         lease or "injection" of the tolerated protein. By
of the fungous infection, again with no                    analogy, this should decrease or prevent the
detectable change in antibody levels. Further              desired response to the cross-reacting protein,
confirmation that B-cells may remain functional            which in this case has been extracted from
in the presence of tolerized T-cells is suggested          Candida albicans and administered as a
by experiments in monkeys with induced                     "vaccine." The clinician endeavoring to restore a
Candida infections of the palate (Budtz-                   patient's competence to respond to the antigens of
Jorgensen, 1973). Without suppression of the T-            this yeast is not so fortunate as the experimentor,
cells by azothiaprine, an early T-cell response            who may arbitrarily withhold further exposure to
preceded by several weeks the onset of detect-             the tolerated protein. Surges of yeast growth as-
able antibody. Prior treatment with this im-               sociated with high carbohydrate availability,
munosuppressant prevented the T-cell response              contraceptive hormones, antibiotics and im-
and resulted in a stronger and much earlier                munosuppressant drugs, and characteristic of the
antibody response, suggesting that T-suppressor            luteal phase of the menstrual cycle and pregnancy
cells were more susceptible than T-helper cells            may account in large measure for inconsistencies
to inhibition by azothiaprine.                             in the response of patients, particularly in the
  The importance of retained B-cell function in            early months of treatment. The pre-menstrual
association with T-cell tolerance to Candida               period is characteristically the time of greatest
antigens relates to experimental techniques for            intensity of yeast vaginitis for most women; the
the termination of specific immunologic                    sudden return of symptoms at this time is the
unresponsiveness. Provided that B-cells remain             most frequent example of this fluctuation in re-
functional, T-cell tolerance may be "broken" by            sponse.
the injection of a cross-react-

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  Recovery from immunologic tolerance may also               in many cases. The rapidity and degree of
occur spontaneously, i.e., without the influence             recovery may well reflect the speed of recovery
of cross-reacting antigens. Since this is greatly            from the yeast antigenemia which in turn is
influenced by the presence of residual antigen               influenced by the sensitivity of the specific strain
capable of tol-erizing new cells arising from the            of yeast to nystatin, by the degree and speed of
stem cell pool (Benacerraf and Unanue, 1979), all            response to yeast vaccine by the immune system,
aspects of therapy other than active immunization            and by the extent to which the patient is able to
with extracts are designed to minimize the                   avoid those factors that favor yeast proliferation.
"tolerogenic" load. If total elimination were                  The suggestion is made that one of the adverse
possible, presumably spontaneous recovery from               effects of chronic candidiasis is to alter the
the tolerant state would co-' incide with the                adaptability to environmental contacts. Probably
emergence of young competent cells in the                    everyone would react to any chemical if exposed
absence of tolerogen.                                        to a sufficiently high concentration. Therefore it
  Of the greatest importance to many patients                appears to be the threshold at which an individual
with chronic candidiasis is the development of               reacts that is altered by the chronic exposure to
intolerance to foods, drugs, and chemicals. A                yeast products. When this alteration is minimal,
careful history often reveals the earliest of these          environmental intolerances are minimal. But in a
intolerances occurring in the first several years            patient who is highly susceptible to this
after the symptoms of chronic yeast infection.               particular effect of Candida, the number and
Thereafter occurs a rapidly accelerating inability           severity of intolerances may be completely
to tolerate environmental chemicals, whether they            incapacitating. Even the slightest exposure to
be known as "foods," "drugs," or "chemicals."                cosmetics, foods, drugs, and almost any other
These patients may literally become unable to                class of "chemicals" may lead to severe physical
live in normal environments, resorting for relief            symptoms, including those arising from the
to the most dramatic measures of environmental               central nervous system and so frequently er-
control. They are unable to work, and may even               roneously considered "psychoneurotic" in origin.
move to remote areas in their attempt to minimize              The relation of Candida albicans to the de-
the total load of chemicals contacted in their daily         velopment of drug allergies is of particular
lives.                                                       importance. Intolerance develops to a rapidly
  Dr. Theron Randolph (1962) called attention to             expanding number of drugs. This often is one of
this developing problem beginning in the early               the earlier manifestations of chemical
1950's and discussed the problem at length in                intolerance. It suggests the possibility that either
1962. His pioneering efforts have enabled many               Candida antigens, or antibodies directed at these
patients to be helped by a program of maximum                antigens, are acting as carrier proteins,
avoidance of the offending chemicals, including              combining with the drug ("hapten") to form an
contaminants in both food and air. It is of great            allergic complex.
interest and potential significance that his                   Finally, it cannot be emphasized too strongly
observations and publications in this field                  that the treatment of this condition is unique.
coincided with the tremendous proliferation of               Each patient requires close attention and ready
articles delineating the increasing prevalence of            access to the physician. When symptoms recur,
chronic yeast problems in the population,                    the associated depression and anxiety may be
attributable to the advent and wide-spread use of            severe, accompanied by a destructive loss of self-
the broad-spectrum antibiotics.                              confidence and nope. Together with the lethargy
  Disappearance of such chemical intolerances                and excessive sleepiness that often coincide with
often occurs when the candidiasis clears. Patients           the physical manifestations characterized for
may begin to note improvement in the first few               each patient, these "emotional" symptoms,
weeks of treatment; within six to twelve months,             actually referable to the
most or all of the intolerances will be gone

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RESTORATION OF IMMUNOLOGIC COMPETENCE

effect of yeast on the central nervous system and            what to both family and physician had seemed so
on hormone function, may render a patient                    surely to be psychiatric in cause.
unable to cope with the simplest daily problem.
This may be devastating in women during the
child-bearing years, almost certainly due to                 SUMMARY AND CONCLUSIONS
interference in the response to hormones so                    Chronic infection with Candida albicans results
characteristic of this condition.                            when a state of impaired immunity prevents the
  Marital problems are often acute. If most                  normal immunologic responses necessary for
physicians are so quick to relegate these patients           eradication of the yeast from the tissues.
to the psychoneurotic category, one can only                 Symptoms usually occur at the sites of fungous
imagine how difficult it is for a husband to accept          colonization. More importantly, symptoms
that this is not willful behavior, and absolutely            frequently result from responses in uninfected
cannot be controlled voluntarily any more than               tissues    to    yeast    metabolites       released
other conditions that adversely affect brain                 systemically; these may represent an allergic or
physiology. His interpretation of his wife's                 other abnormal immunologic response, but
behavior is profoundly reinforced by her often               theoretically could also result from toxins acting
total loss of libido and aversion to marital                 through non-immunologic mechanisms.
relations. The patient herself feels hopelessly                A program has been described that is designed
isolated, with no place to turn as she sees her life         to achieve the maximal possible reduction in the
disintegrating. Faithful adherence to medical                quantity of yeast products entering the
recommendations          (including      psychiatric         bloodstream, together with a program of active
treatment) by many specialists for many years                therapy with extracts of Candida albicans
has not stopped the deterioration of her health              designed to terminate the state of immunologic
and her life. In fact, often the combined                    tolerance. The rationale presented is based on
undesirable effects of many well-intentioned                 current theory of mechanisms involved in the
medications have only served to depress further              induction and termination of tolerance.
the involved physiologic processes, with                       The goal set forth in the title of this paper is at
minimum benefit symptomatica! ly. Careful                    once ambitious and unattainable except in a
explanation to a husband is of great value to him,           relative sense. Its universal presence in humans
to the marital status, and to the woman struggling           indicates an inherent weakness of the immune
to escape from this disaster during the time                 response to this yeast.
necessary for her to begin to improve. Once                    More properly stated, the goal of therapy
improvement begins, it becomes easier for all                becomes the restoration of the maximal immune
concerned to accept that all along this has been a           capability with which each individual is
physiological and not a psychiatric problem, and             genetically endowed, whereby is achieved the
to believe that finally there is a justifiable basis         maximum possible reduction in the chronic
for renewed hope.                                            exposure to this organism and its metabolites.
  When these patients have the sudden recurrence
of symptoms, it has proved most valuable to have             References
them stay in the office and receive the yeast
extract at twenty to thirty-minute intervals for             BENACERRAF, B. and UNANUE, E.: Textbook of Immunology.
one and a half to two hours. This is almost                   "Tolerance." Baltimore: Williams and Wilkins Co.; 166-177,1979.
always effective in alleviating the acute                    BUDTZ-JORGENSEN, E.: Cellular Immunity in Acquired
symptoms, both physical and mental. Of even                   Candidiasis of the Palate. Scand. J. Dent. Res. 81; 372-383.1973.
greater value is the benefit to patient and family           BUDTZ-JORGENSEN. E.: Immune Response to Candida Albicans
of seeing this reversal of these unbearable                   in Monkeys with Experimental Candidiasis in the Palate. Scan. J.
                                                              Dent. Res. 81;360-371,1973.
symptoms. Even though cautioned that relief by
this method lasts only a few hours to a few days,            GOODMAN, S. and GILMAN, A.: The Pharmaceutical Basis of
they now have evidence from their own                         therapeutics, 5th ed. New York: MacMillan; 1235-1236.1975.
experience that there truly is a physical reason for
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