Cardiovascular response to acute hypoxemia in adult rats hypoxemic neonatally
نویسندگان
چکیده
منابع مشابه
Neuronal reorganization in adult rats neonatally exposed to (±)-3,4-methylenedioxymethamphetamine
The abuse of methylenedioxymethamphetamine (MDMA) during pregnancy is of concern. MDMA treatment of rats during a period of brain growth analogous to late human gestation leads to neurochemical and behavioral changes. MDMA from postnatal day (P)11-20 in rats produces reductions in serotonin and deficits in spatial and route-based navigation. In this experiment we examined the impact of MDMA fro...
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Mulder, A. L. M., C. A. van Goor, D. A. Giussani, and C. E. Blanco. a-Adrenergic contribution to the cardiovascular response to acute hypoxemia in the chick embryo. Am J Physiol Regulatory Integrative Comp Physiol 281: R2004–R2010, 2001.—Fetal responses to acute hypoxemia include bradycardia, increase in blood pressure, and peripheral vasoconstriction. Peripheral vasoconstriction contributes to...
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Fetal responses to acute hypoxemia include bradycardia, increase in blood pressure, and peripheral vasoconstriction. Peripheral vasoconstriction contributes to the redistribution of the cardiac output away from ancillary vascular beds toward myocardial, cerebral, and adrenal circulations. We investigated the effect of alpha-adrenergic receptor blockade on this fetal response. Fluorescent micros...
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Prolonged breath hold (BH) represents a valid model for studying the cardiac adaptation to acute hypoxemia in humans. Cardiac magnetic resonance (CMR) allows a three-dimensional, high-resolution, noninvasive, and nonionizing anatomical and functional evaluation of the heart. The aim of the study was to assess the adaptation of the cardiovascular system to prolonged BH in air. Ten male volunteer...
متن کاملSympathetic control of the cardiovascular response to acute hypoxemia in the chick embryo.
In response to an acute hypoxemic insult, the mammalian fetus shows a redistribution of the cardiac output in favor of the heart and brain. Peripheral vasoconstriction contributes to this response and is partly mediated by the release of catecholamines. Two mechanisms of catecholamine release in the fetus are reported: 1) neurogenic sympathetic stimulation and 2) a nonneurogenic mechanism via a...
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ژورنال
عنوان ژورنال: Cardiovascular Research
سال: 2002
ISSN: 0008-6363
DOI: 10.1016/s0008-6363(01)00475-8