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

insecurity that occur in sections of U.S. society and demonstrates the vulnerability of the fetus to moderate reduction in nutrients."

Dr. Nathanielsz noted:

  • In teenage pregnancy, the developing fetus is deprived of nutrients by the needs of the growing mother;
  • In pregnancies late in reproductive life, a woman's arteries are stiffer and the blood supply to the uterus decreases, inevitably affecting nutrient delivery to the fetus;
  • Diseases such as preeclampsia or high blood pressure in pregnancy can lead to decreased function of the placenta with decreased delivery of nutrients to the fetus.

'Lifetime effects'

"This study is a further demonstration of the importance of good maternal health and diet," Dr. McDonald said. "It supports the view that poor diets in pregnancy can alter development of fetal organs, in this case the brain, in ways that will have lifetime effects on offspring, potentially lowering IQ and predisposing to behavioral problems."

Developmental programming of lifetime health has been shown to play a role in later development of obesity, diabetes and heart disease. In light of this new finding, research should focus on effects of developmental programming in the context of autism, depression, schizophrenia and other brain disorders.

Mother's protection

The study, published this week in Proceedings of the National Academy of Sciences, also forces researchers to review the commonly held notion that during pregnancy the mother is able to protect the fetus from dietary challenges such as poor nutrition, Dr. McDonald said.

The nonhuman primate model's brain developmental stages are very close to those of human fetuses, the researchers noted. Most previous research in this area was conducted in rats.


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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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