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Mostrando ítems 21-24 de 24
A prospective study of early pregnancy loss in humans
(Fertility and Sterility, 2006-08)
Objective: To test two hypotheses: In spontaneous conceptions, early pregnancy loss (EPL) is associated with [1]
inadequate luteal (ovarian) P, and/or [2] elevated follicular (adrenal) P.
Design: A population-based ...
Salivary progesterone levels and rate of ovulation are significantly lower in poorer than in better-of urban-dwelling Bolivian women
(Human Reproduction, 2002)
Agriculturalists in less-developed countries (LDC) have lower progesterone levels than urban industrialized populations. However, it is unknown if urban LDC populations are also relatively lower. We tested whether urban ...
Seasonal and circadian variation in salivary testosterone in rural Bolivian men
(American Journal of Human Biology, 2009-02-19)
Abstract.
Testosterone (T) plays a key role in the increase and maintenance of muscle mass and bone density in
adult men. Life history theory predicts that environmental stress may prompt a reallocation of such investments ...
Regression-based prediction of net energy expenditure in children performing activities at high altitude
(American Journal of Human Biology, 2003-01-06)
Abstract.
We developed a simple, non-invasive, and affordable method for estimating net energy expenditure (EE) in children performing activities at high altitude. A regression-based method ...