| Excess omega-3 fatty acid consumption by mothers during pregnancy and lactation caused shorter life span and abnormal ABRs in old adult offspring. | |
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MedLine Citation:
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PMID: 19818397 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Consuming omega-3 fatty acids (omega-3 FA) during pregnancy and lactation is beneficial to fetal and infant development and might reduce the incidence and severity of preterm births by prolonging pregnancy. Consequently, supplementing maternal diets with large amounts of omega-3 FA is gaining acceptance. However, both over- and under-supplementation with omega-3 FA can harm offspring development. Adverse fetal and neonatal conditions in general can enhance age-related neural degeneration, shorten life span and cause other adult-onset disorders. We hypothesized that maternal over- and under-nutrition with omega-3 FA would shorten the offspring's life span and enhance neural degeneration in old adulthood. To test these hypotheses, female Wistar rats were randomly assigned to one of the three diet conditions starting from day 1 of pregnancy through the entire period of pregnancy and lactation. The three diets were Control omega-3 FA (omega-3/omega-6 ratio approximately 0.14), Excess omega-3 FA (omega-3/omega-6 ratio approximately 14.5) and Deficient omega-3 FA (omega-3/omega-6 ratio approximately 0% ratio). When possible, one male and female offspring from each litter were assessed for life span and sensory/neural degeneration (n=15 litters/group). The Excess offspring had shorter life spans compared to their Control and Deficient cohorts (mean+/-SEM=506+/-24, 601+/-14 and 585+/-21 days, p<or=0.004) when the study terminated on postnatal day 640. The Excess offspring had a higher incidence of presbycusis than the Control and Deficient groups (33.3, 4.3 and 4.5%, p=0.011) and a persistence of other sensory/neurological abnormalities and lower body weights in old adulthood. In conclusion, omega-3 FA over-nutrition or imbalance during pregnancy and lactation had adverse effects on life span and sensory/neurological function in old adulthood. The adverse outcomes in the Excess offspring were likely due to a "nutritional toxicity" during fetal and/or neonatal development that programmed them for life-long health disorders. The health implication is that consuming or administering large amounts of omega-3 FA during pregnancy and lactation seems inadvisable because of adverse effects on the offspring. |
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Authors:
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M W Church; K-L C Jen; J I Anumba; D A Jackson; B R Adams; J W Hotra |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't Date: 2009-10-07 |
Journal Detail:
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Title: Neurotoxicology and teratology Volume: 32 ISSN: 1872-9738 ISO Abbreviation: Neurotoxicol Teratol Publication Date: 2010 Mar-Apr |
Date Detail:
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Created Date: 2010-03-15 Completed Date: 2010-06-15 Revised Date: 2011-07-25 |
Medline Journal Info:
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Nlm Unique ID: 8709538 Medline TA: Neurotoxicol Teratol Country: United States |
Other Details:
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Languages: eng Pagination: 171-81 Citation Subset: IM |
Copyright Information:
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Copyright (c) 2009 Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA. mchurch@med.wayne.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aging
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pathology,
physiology Animals Auditory Pathways / drug effects, physiopathology Body Weight / drug effects, physiology Brain / drug effects*, growth & development, physiopathology* Dietary Fats / toxicity Disease Models, Animal Evoked Potentials, Auditory, Brain Stem / drug effects*, physiology Fatty Acids, Omega-3 / toxicity* Female Lactation / drug effects, metabolism Longevity / drug effects*, physiology Male Pregnancy Prenatal Exposure Delayed Effects / pathology, physiopathology* Presbycusis / chemically induced, physiopathology Rats Rats, Wistar Time |
| Grant Support | |
ID/Acronym/Agency:
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GM58905/GM/NIGMS NIH HHS; R25 GM058905-10/GM/NIGMS NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Dietary Fats; 0/Fatty Acids, Omega-3 |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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