Buscar
Mostrando ítems 51-60 de 134
Investigación en salud, adecuada y aprobada éticamente
(Revista Boliviana de Bioética, 2005)
Maternal adaptation to high-altitude pregnancy : an experiment of nature-a review
(Placenta, 2004)
A long and productive history of studies at high altitude has demonstrated that chronic hypoxia plays a key role in the aetiology of intrauterine growth restriction (IUGR) and pre-eclampsia. Susceptibility to altitude-associated ...
Rendimiento de futbolistas profesionales aclimatados y no aclimatados a la altura, a 3600 metros
(PubliCE, 2003-01-05)
Resumen.
Los partidos del Fútbol Europeo son frecuentemente jugados a nivel internacional en regiones montañosas de Sudamérica. En este estudio, fueron medidas las respuestas del ejercicio durante una ergometría en ciclo ...
Interpopulational differences in progesterone levels during conception and implantation in humans
(PNAS, 2004-02-10)
Clinical studies of women from the United States demonstrate a
sensitivity of the ovarian system to energetic stress. Even moder
ate exercise or caloric restriction can lead to lower progesterone
levels and failure to ...
Lactate dehydrogenase changes in diferent tissues in a chronical hypoxia adapted rat strain
(High Altitude Medicine & Hygiene, 2002-04-18)
We have previously shown that the maximal anaerobic power of highlander-bolivian children is more affected by their nutrition status rather than by altitude.
To further link these observations to molecular measurements, ...
High-altitude ancestry protects against IUGR and reductions in birth weight associated with high altitude and preeclampsia
(High Altitude Medicine & Biology, 2005-02-22)
Background.
Observations consistently demonstrate diminished birth weight [BW] with ascending altitude;
however population comparisons reveal the extent of BW
reduction depends, in part, upon high-altitude ancestry.
...
Índice de resistencia vascular arterial en la madre y el feto durante el embarazo en grandes alturas (3600 m) vs. niveles bajos de altura (300 m)
(Revista de la Sociedad Boliviana de Radiología, 2007)
Resumen.
Objetivo: Determinar los índices de resistencia de las arterias uterinas en las madres, umbilical y cerebral media en los bebés de grandes alturas, en comparación a pacientes que habitan alturas bajas reflejados ...
High-altitude ancestry protects against hypoxia-associated reductions in fetal growth
(Archives of Disease in Childhood-Fetal and Neonatal, 2007-02-28)
Objective: The chronic hypoxia of high-altitude (>2500 m) residence has been shown to decrease birth
weight in all populations studied to date. However, multigenerational high-altitude populations appear
protected relative ...
The role of oxygen in prenatal growth : studies in the chick embryo
(J Physiol, 2007-10-25)
The compelling evidence linking small size at birth with later cardiovascular disease has renewed
and amplified scientific and clinical interests into the determinants of fetal growth. It is accepted
that genes and ...
Seasonal modulation of reproductive effort during early pregnancy in humans
(American Journal of Human Biology, 2009-03-03)
Abstract.
Life history theory predicts that early pregnancy presents a relatively low cost, uncontested opportunity for a woman to terminate investment in a current reproductive opportunity if a conceptus is of poor quality ...