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Reducing diet early in pregnancy stunts fetal brain development
Date:1/17/2011

SAN ANTONIO, Texas, U.S.A. (Jan. 17, 2011) Eating less during early pregnancy impaired fetal brain development in a nonhuman primate model, researchers from The University of Texas Health Science Center San Antonio reported today.

The researchers found decreased formation of cell-to-cell connections, cell division and amounts of growth factors in the fetuses of mothers fed a reduced diet during the first half of pregnancy. "This is a critical time window when many of the neurons as well as the supporting cells in the brain are born," said Peter Nathanielsz, M.D., Ph.D., director of the Center for Pregnancy and Newborn Research in the Health Science Center School of Medicine.

The study included collaborators at the Southwest Foundation for Biomedical Research (SFBR) in San Antonio and Friedrich Schiller University in Jena, Germany. The team compared two groups of baboon mothers located at SFBR's Southwest National Primate Research Center. One group ate as much as they wanted during the first half of pregnancy while the other group was fed 30 percent less, a level of nutrition similar to what many prospective mothers in the U.S. experience.

Hundreds of genes involved

"Our collaboration allowed us to determine that the nutritional environment impacts the fetal brain at both the cellular and molecular levels," said SFBR's Laura Cox, Ph.D. "That is, we found dysregulation of hundreds of genes, many of which are known to be key regulators in cell growth and development, indicating that nutrition plays a major role during fetal development by regulating the basic cellular machinery."

Moderate versus severe reduction

It is known that marked nutrient restriction, such as in famine conditions, adversely affects development of the fetal brain. Senior author Thomas McDonald, Ph.D., also of the Health Science Center, said the study "is the first demonstration of major effects caused by the levels of food
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Contact: Will Sansom
sansom@uthscsa.edu
210-567-2579
University of Texas Health Science Center at San Antonio
Source:Eurekalert

Page: 1 2

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