FROM:
Alternative Medicine Review 2002 (Aug); 7 (4): 292–316 ~ FULL TEXT
Kidd PM
Parris Kidd, PhD (Cell Biology, University of California at Berkeley)
Contributing Editor, Alternative Medicine Review;
Health educator and biomedical consultant to the supplement industry.
847 Elm Street,
El Cerrito, CA 94530
Autism, archetype of the autistic spectrum disorders (ASD), is a neurodevelopmental disorder characterized by socially aloof behavior and impairment of language and social interaction. Its prevalence has surged in recent years. Advanced functional brain imaging has confirmed pervasive neurologic involvement. Parent involvement in autism management has accelerated understanding and treatment. Often accompanied by epilepsy, cognitive deficits, or other neurologic impairment, autism manifests in the first three years of life and persists into adulthood. Its etiopathology is poorly defined but likely multifactorial with heritability playing a major role. Prenatal toxic exposures (teratogens) are consistent with autism spectrum symptomatology. Frequent vaccinations with live virus and toxic mercurial content (thimerosal) are a plausible etiologic factor. Autistic children frequently have abnormalities of sulfoxidation and sulfation that compromise liver detoxification, which may contribute to the high body burden of xenobiotics frequently found. Frequent copper-zinc imbalance implies metallothionein impairment that could compound the negative impact of sulfur metabolism impairments on detoxification and on intestinal lining integrity. Intestinal hyperpermeability manifests in autistic children as dysbiosis, food intolerances, and exorphin (opioid) intoxication, most frequently from casein and gluten. Immune system abnormalities encompass derangement of antibody production, skewing of T cell subsets, aberrant cytokine profiles, and other impairments consistent with chronic inflammation and autoimmunity. Coagulation abnormalities have been reported. Part 2 of this review will attempt to consolidate progress in integrative management of autism, aimed at improving independence and lifespan for people with the disorder.
Introduction
In 1943 the psychologist Leo Kanner published
case histories of a childhood developmental
disorder he called autism. He defined three
symptom patterns:
(1) failure to use language for
communication,
(2) abnormal development of
social reciprocity, and
(3) desire for sameness, as
seen in repetitive rituals or intense circumscribed
interests. [1]
Autistic children seem abnormally withdrawn,
almost self-occupied, and out of touch with
reality. As a group they score significantly lower
on measures of adaptive or life skills than the general
population. [2]
Individuals with autism tend to have extreme
difficulty learning from experience and
modifying their behavior to accommodate varying
situations. [2] Coping with the unpredictability
of the social world is especially demanding, even
overwhelming, for adults with autism; associated
anxiety exacerbates the problem. [2] Adult individuals
with autism have life outcomes that range from
complete dependence to (rarely) successful employment.
Most are able to benefit from structured
training programs with marked improvement in
their quality of life. [3]
Autism has become epidemic in the industrialized
societies. In the United States, autism
was relatively rare until the early 1990s, after
which its prevalence increased by at least double,
and more likely 3-5 times. [2] Similar steep increases
in prevalence have been recorded in the United
Kingdom. [4] The gender ratio is 3-4:1 boys to girls. [2]
Since every autistic child has a major impact on
the family, school system, and community, this
epidemic calls for compassion, sensitivity, and
maximum assistance from society as a whole.
There is a great deal of debate in the
healthcare world over the existence of an autism
epidemic and the possible contributing factors.
Parents, supported by progressive healthcare professionals,
are on one side pointing at vaccines
manufactured with known toxic ingredients. On
the other side are governmental and private organizations
seemingly unwilling to institute reform.
The annual monetary cost of autism in the United
States is estimated to be $26 billion. [5]
From the clinical-biological perspective,
this disorder or spectrum of disorders, is extremely
complex and multifaceted. Its expression, pathology,
etiology, and management rank it among the
most perplexing disorders known. Autism challenges
the intellect and research skill of investigators
obtaining funding support to investigate it.
Yet despite all the limitations, real progress has
been made within the last decade toward helping
autistic people become productive members of society.
The Autism Research Institute, founded
by Dr. Bernard Rimland, and its Defeat Autism
Now! (DAN!) initiative, have successfully advanced
medical management of autism to the degree
that some children largely recover and can
have somewhat normal lives. [6, 7]Within the broader
medical community, diagnosis and assessment
have also markedly improved, as have the pace
and intensity of research. This review (Part 1 of
2) seeks to define the features of the disorder and
its core abnormalities. Part 2 will address the variety
of approaches to its medical management,
along with priorities for future research.