(Ivanhoe Newswire) -- The effects of fetal alcohol exposure may be more
profound than researchers hoped. Results of a new study reveal the prenatal
damage to peptides in the fetal brain may endure into adulthood despite
environmental enrichment provided in a child's early years.
Neurotrophins -- a family of peptides produced in the nervous system -- are
critical for normal development of the brain. Research has shown prenatal
alcohol exposure may be particularly destructive for neurotrophins, with effects
lasting into adulthood.
"Neurotrophins also play important roles in learning and memory, and contribute
to the repair of the brain following injury or stress," study author Robert F.
Berman, Ph.D., a professor in the department of neurological surgery at the
University of California -- Davis, was quoted as saying.
Dr. Berman said treatment of other types of brain injury with environmental
enrichment therapy could be beneficial. However, new research in rats suggests
the effects of prenatal alcohol exposure and environmental rearing conditions on
neurotrophin levels are largely independent.
"In this study, we found that being raised in an enriched environment, with
ample opportunities for motor and sensory stimulation, and social interactions,
unexpectedly resulted in reduced levels of neurotrophins in some areas of the
cortex, but not in other areas which are well known to be affected by prenatal
alcohol exposure," Dr. Berman said.
He went on to say additional research is needed to devise better treatment
strategies for Fetal Alcohol Spectrum Disorders.
SOURCE: To be published in the October 2008 edition of Alcoholism: Clinical &
Experimental Research.
