Serum leptin levels in ache Amerindian females with normal adiposity are not significantly different from American anorexia nervosa patients
Article Abstract:
An investigation is presented to test the hypothesis that Ache women exhibit leptin levels that are not significantly different from anorectic patients, providing support for the role of chronic environmental differences that might alter leptin physiology. Results revealed that although Ache adiposity was significantly higher than anorectic and control patients, Ache leptin was not significantly different from anorexia patients, lower than controls, and exhibited a very limited range of variation.
Publication Name: American Journal of Human Biology
Subject: Biological sciences
ISSN: 1042-0533
Year: 2005
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Effects of oral zinc supplementation on serum leptin levels in ache males of Eastern Paraguay
Article Abstract:
Independent of adiposity, significant population variation is demonstrated in serum leptin levels and zinc is shown to be an important regulator of leptins in humans and rodents. It is concluded that zinc is not likely to be a contributing factor in male Ache leptin profiles, and chronic energetic stresses affecting leptin production and perhaps receptor number or sensitivity must be considered.
Publication Name: American Journal of Human Biology
Subject: Biological sciences
ISSN: 1042-0533
Year: 2003
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Testosterone-mediated immune functions and male life histories
Article Abstract:
Male life history trade-offs between immune and reproductive endocrine functions as well as testosterone-immunocompetence relationship was studied. It is found that by suppressing immune response and augmenting anabolic processes, testosterone act as a physiological mechanism regulating the relative amount of energy invested into either reproductive effort or immunocompetence.
Publication Name: American Journal of Human Biology
Subject: Biological sciences
ISSN: 1042-0533
Year: 2005
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