Can Thrifty Gene(s) or Predictive Fetal Programming for Thriftiness Lead to Obesity?

Obesity and related disorders are thought to have their roots in metabolic “thriftiness” that evolved to combat periodic starvation. The association of low birth weight with obesity in later life caused a shift in the concept from thrifty gene to thrifty phenotype or anticipatory fetal programming....

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Main Authors: Ulfat Baig, Prajakta Belsare, Milind Watve, Maithili Jog
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Journal of Obesity
Online Access:http://dx.doi.org/10.1155/2011/861049
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author Ulfat Baig
Prajakta Belsare
Milind Watve
Maithili Jog
author_facet Ulfat Baig
Prajakta Belsare
Milind Watve
Maithili Jog
author_sort Ulfat Baig
collection DOAJ
description Obesity and related disorders are thought to have their roots in metabolic “thriftiness” that evolved to combat periodic starvation. The association of low birth weight with obesity in later life caused a shift in the concept from thrifty gene to thrifty phenotype or anticipatory fetal programming. The assumption of thriftiness is implicit in obesity research. We examine here, with the help of a mathematical model, the conditions for evolution of thrifty genes or fetal programming for thriftiness. The model suggests that a thrifty gene cannot exist in a stable polymorphic state in a population. The conditions for evolution of thrifty fetal programming are restricted if the correlation between intrauterine and lifetime conditions is poor. Such a correlation is not observed in natural courses of famine. If there is fetal programming for thriftiness, it could have evolved in anticipation of social factors affecting nutrition that can result in a positive correlation.
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institution Kabale University
issn 2090-0708
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publishDate 2011-01-01
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series Journal of Obesity
spelling doaj-art-581983ed4dba4f90a8812f1f6aedbf5b2025-02-03T06:42:11ZengWileyJournal of Obesity2090-07082090-07162011-01-01201110.1155/2011/861049861049Can Thrifty Gene(s) or Predictive Fetal Programming for Thriftiness Lead to Obesity?Ulfat Baig0Prajakta Belsare1Milind Watve2Maithili Jog3Indian Institute of Science Education and Research, Pune 411021, IndiaIndian Institute of Science Education and Research, Pune 411021, IndiaIndian Institute of Science Education and Research, Pune 411021, IndiaDepartment of Biotechnology, Abasaheb Garware College, Pune 411004, IndiaObesity and related disorders are thought to have their roots in metabolic “thriftiness” that evolved to combat periodic starvation. The association of low birth weight with obesity in later life caused a shift in the concept from thrifty gene to thrifty phenotype or anticipatory fetal programming. The assumption of thriftiness is implicit in obesity research. We examine here, with the help of a mathematical model, the conditions for evolution of thrifty genes or fetal programming for thriftiness. The model suggests that a thrifty gene cannot exist in a stable polymorphic state in a population. The conditions for evolution of thrifty fetal programming are restricted if the correlation between intrauterine and lifetime conditions is poor. Such a correlation is not observed in natural courses of famine. If there is fetal programming for thriftiness, it could have evolved in anticipation of social factors affecting nutrition that can result in a positive correlation.http://dx.doi.org/10.1155/2011/861049
spellingShingle Ulfat Baig
Prajakta Belsare
Milind Watve
Maithili Jog
Can Thrifty Gene(s) or Predictive Fetal Programming for Thriftiness Lead to Obesity?
Journal of Obesity
title Can Thrifty Gene(s) or Predictive Fetal Programming for Thriftiness Lead to Obesity?
title_full Can Thrifty Gene(s) or Predictive Fetal Programming for Thriftiness Lead to Obesity?
title_fullStr Can Thrifty Gene(s) or Predictive Fetal Programming for Thriftiness Lead to Obesity?
title_full_unstemmed Can Thrifty Gene(s) or Predictive Fetal Programming for Thriftiness Lead to Obesity?
title_short Can Thrifty Gene(s) or Predictive Fetal Programming for Thriftiness Lead to Obesity?
title_sort can thrifty gene s or predictive fetal programming for thriftiness lead to obesity
url http://dx.doi.org/10.1155/2011/861049
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AT maithilijog canthriftygenesorpredictivefetalprogrammingforthriftinessleadtoobesity