It is established that regular aerobic training improves vascular function, for example, endothelium-dependent vasodilatation and arterial stiffness or compliance and thereby constitutes a preventative measure against cardiovascular disease. In contrast, high-intensity resistance training impairs vascular function, while the influence of moderate-intensity resistance training on vascular functi...

We evaluated the effects of an analogue of the prostaglandin endoperoxide, PGH2, in the canine pulmonary vascular bed. The analogue increased pulmonary arterial pressure whereas cardiac output and left atrial pressure were unchanged. Although pulmonary vascular resistance was increased markedly, only small increases in systemic vascular resistance were observed. In experiments in which blood fl...

An increase in fetoplacental vascular resistance caused by hypoxia is considered one of the key factors of placental hypoperfusion and fetal undernutrition leading to intrauterine growth restriction (IUGR), one of the serious problems in current neonatology. However, although acute hypoxia has been shown to cause fetoplacental vasoconstriction, the effects of more sustained hypoxic exposure are...

The objective of this study was to determine the direct actions of nitroprusside and nitroglycerin on the pulmonary vascular bed in the intactchest dog. These widely used nitrogen oxide-containing vasodilator agents decreased pulmonary arterial pressure and increased cardiac output without altering left atrial pressure. Reductions in pulmonary arterial pressure and pulmonary vascular resistance...

Vila, Elisabet, and Mercedes Salaices. Cytokines and vascular reactivity in resistance arteries. Am J Physiol Heart Circ Physiol 288: H1016–H1021, 2005; doi:10.1152/ajpheart.00779.2004.—Cytokine levels are elevated in many cardiovascular diseases and seem to be implicated in the associated disturbances in vascular reactivity reported in these diseases. Arterial blood pressure is maintained with...

Spontaneously hypertensive rats (SHR) demonstrate an elevated minimal coronary vascular resistance by the seventh month of age. In an attempt to determine the role of long-standing hypertension in the etiological process of the elevated minimal coronary vascular resistance, we treated SHR and normotensive Wistar-Kyoto rats (WKY) with the vasodilator hydralazine from the time of weaning (1 month...

Most centrally mediated sympathoexcitatory reflexes produce increases in arterial pressure, heart rate, and peripheral vascular resistance, including coronary vasoconstriction. Cerebral ischemia also causes large increases in arterial pressure and peripheral vasoconstriction but with modest or variable changes in heart rate. To examine the effect of cerebral ischemia on coronary vascular resist...

Exposure to fine particular matter (PM2.5) increases the risk of developing cardiovascular disease and Type 2 diabetes. Because blood vessels are sensitive targets of air pollutant exposure, we examined the effects of concentrated ambient PM2.5 (CAP) on vascular insulin sensitivity and circulating levels of endothelial progenitor cells (EPCs), which reflect cardiovascular health. We found that ...

STAHLMAN, M.,J. GRAY, W.C. YOUNG,AND F.M. SHEPARD. Cardiovascular response of the neonatal lamb to hypoxia and hypercapnia. Am. J. Physiol. 213(4): 899-904. 1967.-The effects of hypoxia and hypercapnia on the circulatory dynamics of the unanesthetized newborn lamb were evaluated. Hypoxia produced by inhalation of 8a/, 02 caused a marked increase in pulmonary arterial pressure and pulmonary vasc...

context hcv infection is strongly associated with development of insulin resistance and type-2 diabetes, however molecular mechanism of these associations is not known. the aim of this review was to conduct a comprehensive literature search to understand the nature of the association between hepatitis c virus (hcv) infection and insulin resistance (ir). we also explored the role of hcv core pro...