From: rpautrey2 on


Diet And Autism Research Focuses On Which Foods May Affect Autistic
Behavior


ScienceDaily (Aug. 9, 2008) — Researchers at The University of Texas
Health Science Center at Houston have embarked on one of the first
double-blind, clinical studies to determine whether gluten and dairy
products play a role in autistic behavior as parents have anecdotally
claimed.

The pilot study is one of seven current studies on autism in the
Department of Pediatrics and the Department of Psychiatry and
Behavioral Sciences at The University of Texas Medical School at
Houston.

“There’s a lot of misinformation, so that’s why this study is so
important,” said Fernando Navarro, M.D., assistant professor of
pediatrics at the medical school and lead investigator of the study.
“Hundreds and hundreds of parents think this works but we need serious
evidence.”

Autism is a complex neurobehavioral disorder linked to early
abnormalities of brain development. According to the National
Institute of Neurological Disorders and Stroke, it affects up to six
of every 1,000 children and is characterized by impaired social
interaction, problems with verbal and nonverbal communication and
unusual, repetitive or severely limited activities and interests.

Researchers have discovered that there are differences in the central
nervous systemÂ’s anatomy and function in those diagnosed with autism,
but the cause of the disorder is unknown. Experts theorize it may be a
combination of genetics and environment.

“A lot of children with autism have gastrointestinal problems such as
constipation and diarrhea. Whether these problems are related to brain
development is open to question,” said Katherine Loveland, Ph.D., co-
investigator and professor of psychiatry and behavioral sciences,
pediatrics and biomedical sciences at the health science center.
“There are neurotransmitters and neuroreceptors in the gut that
correspond with those in the brain. There are some scientific reasons
to think that some kids may benefit from this diet.”

For the double-blind study, funded in its initial phase by
supplemental funds granted by the Department of Pediatrics,
researchers will enroll 38 autistic children ages 3 to 9. They will
look at the influence of gluten and milk proteins in the intestinal
function. Gluten is a protein in wheat; casein and whey are proteins
in milk. Casomorphin, a peptide in milk; and gliadomorphin, a peptide
in gluten, are thought to be related to changes in behavior in these
children. Children will be taken off gluten and dairy products before
the four-week study and then half will be given gluten/milk powder and
half will be given a placebo powder.

Researchers will study intestinal permeability (leaky gut) through
urine collection and behavior through psychometric testing.

Co-investigators for the study are J. Marc Rhoads, M.D., professor and
director of gastroenterology at the medical school, and Deborah A.
Pearson, Ph.D., professor of psychiatry and behavioral sciences.

Children will be enrolled through the UT Physicians pediatric
gastroenterology clinic and The University of Texas Mental Sciences
Institute. Navarro and Rhoads are attending physicians at Memorial
Hermann hospitals. For more information on the study, call
713-500-5669.


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Adapted from materials provided by University of Texas Health Science
Center at Houston.

University of Texas Health Science Center at Houston (2008, August 9).
Diet And Autism Research Focuses On Which Foods May Affect Autistic
Behavior. ScienceDaily. Retrieved August 10, 2008, from

http://www.sciencedaily.com­ /releases/2008/08/080807175440.htm