Age-related changes in testosterone and SHBG among Turkana males

Article Abstract:

A study to determine age-related changes in biologically available testosterone T) and sex hormone binding globulin (SHBG) among Turkana males is presented. The results show that testosterone is related to energetic status under conditions of negative energy balance and suggest that cross-population variation in the slope of age-related declines in free serum T and Salivary T may be related to energetic status through the effects of SHBG.

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Catch-up reproductive maturation in rural Tonga girls, Zambia?

Article Abstract:

An attempt made to compare the timing of reproductive maturation among urban and rural Tonga girls in Zambia, by obtaining anthropometric measures and Tanner stages of breast development is reported. The findings of the study suggest that rural Tonga girls progress through puberty more rapidly than their urban counterparts despite their later start.

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Urinary cortisol and muscle mass in Turkana men

Article Abstract:

Measures of cortisol and body composition were obtained from a sample of Turkana men to determine the role of cortisol in modulating the effects on muscle mass in a substance society. The results suggested that even in chronically undernourished populations, cortisol may be elevated primarily under conditions of acute nutritional stress.

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