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Two-Year Body Composition Analyses of Long-Lived GHR Null Mice

Berryman, Darlene E ; List, Edward O ; Palmer, Amanda J ; Chung, Min - Yu ; Wright - Piekarski, Jacob ; Lubbers, Ellen ; Oʼconnor, Patrick ; Okada, Shigeru ; Kopchick, John J

Journals of Gerontology Series A: Biomedical Sciences and Medical Sciences, 2010, 2009, Vol. 65A(1), pp.31-40 [Rivista Peer Reviewed]

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  • Titolo:
    Two-Year Body Composition Analyses of Long-Lived GHR Null Mice
  • Autore: Berryman, Darlene E ; List, Edward O ; Palmer, Amanda J ; Chung, Min - Yu ; Wright - Piekarski, Jacob ; Lubbers, Ellen ; Oʼconnor, Patrick ; Okada, Shigeru ; Kopchick, John J
  • Note di contenuto: Growth hormone receptor gene–disrupted (GHR−/−) mice exhibit increased life span and adipose tissue mass. Although this obese phenotype has been reported extensively for young adult male GHR−/− mice, data for females and for other ages in either gender are lacking. Thus, the purpose of this study was to evaluate body composition longitudinally in both male and female GHR−/− mice. Results show that GHR−/− mice have a greater percent fat mass with no significant difference in absolute fat mass throughout life. Lean mass shows an opposite trend with percent lean mass not significantly different between genotypes but absolute mass reduced in GHR−/− mice. Differences in body composition are more pronounced in male than in female mice, and both genders of GHR−/− mice show specific enlargement of the subcutaneous adipose depot. Along with previously published data, these results suggest a consistent and intriguing protective effect of excess fat mass in the subcutaneous region.
  • Fa parte di: Journals of Gerontology Series A: Biomedical Sciences and Medical Sciences, 2010, 2009, Vol. 65A(1), pp.31-40
  • Soggetti: Body Composition ; Growth Hormone ; Obesity ; Adipose Depots ; Gender Differences
  • Tipo: Articolo
  • Identificativo: ISSN: 1079-5006 ; E-ISSN: 1758-535X ; DOI: 10.1093/gerona/glp175

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