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Mostrando ítems 41-50 de 55
Augmented uterine artery blood flow and oxygen delivery protect andeans from altitude-associated reductions in fetal growth
(Am J Physiol Regul Integr Comp Physiol, 2009-02-20)
Abstract.
The effect of high altitude on reducing birth weight is markedly less in
populations of high- (e.g., Andeans) relative to low-altitude origin
(e.g., Europeans). Uterine artery (UA) blood flow is greater ...
Patrones reproductivos en la altura : hipoxia o regulación cultural
(Rev. Arg. Antrop. Biol., 2001)
Maternal PRKAA1 and EDNRA genotypes are associated with birth weight, and PRKAA1 with uterine artery diameter and metabolic homeostasis at high altitude
(Physiol Genomics, 2014-07-14)
Low birth weight and intrauterine growth restriction (IUGR) increase the risk of mortality and
morbidity during the perinatal period as well as in adulthood. Environmental and genetic factors contribute to IUGR, but the ...
Where the O2 goes to : preservation of human fetal oxygen delivery and consumption at high altitude
(The Journal of Physiology, 2009)
Fetal growth is decreased at high altitude (> 2700 m). We hypothesized that variation in fetal O2
delivery might account for both the altitude effect and the relative preservation of fetal growth in
multigenerational ...
Intrauterine growth restriction, preeclampsia, and intrauterine mortality at high altitude in Bolivia
(PEDIATRIC RESEARCH, 2003-02-18)
Abstract.
Infant mortality and stillbirth rates in Bolivia are high and birth weights are low compared with other South American countries. Most Bolivians live at altitudes of 2500 m or higher. We sought to determine the ...
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 ...
Greater uterine artery blood flow during pregnancy in multigenerational (Andean) than shorter-term (European) high-altitude residents
(Am J Physiol Regul Integr Comp Physiol, 2007)
Multigenerational (Andean) compared with shorter-term (European) high-altitude
residents exhibit less hypoxia-associated reductions in birth
weight. Because differences in arterial O2 content are not responsible,
we ...
Higher estrogen levels during pregnancy in Andean than European residents of high altitude suggest differences in aromatase activity
(J Clin Endocrinol Metab, 2014-08)
Context: Uteroplacental hypoxia has been reported to lower estrogen levels in preeclampsia as the
result of reduced aromatase activity.
Objective: We asked whether the chronic hypoxia of residence at high altitude in the ...
A genomewide admixture mapping panel for hispanic/latino populations
(The American Journal of Human Genetics, 2007-06)
Admixture mapping (AM) is a promising method for the identification of genetic risk factors for complex traits and
diseases showing prevalence differences among populations. Efficient application of this method requires the ...
Does chronic mountain sickness (CMS) have perinatal origins?
(Respiratory Physiology & Neurobiology, 2007-06-29)
Abstract.
Chronic mountain sickness (CMS) occurs in 10% of male high-altitude residents. It is characterized by hypoventilation and hypoxemia but its underlying cause remains unknown. We hypothesized that CMS' origins ...