To determine if structural changes in forearm resistance vessels are associated with insulin resistance, we evaluated the relation between minimum forearm vascular resistance and insulin resistance in 95 obese adolescents before and after weight loss. Insulin resistance was assessed by fasting insulin levels and sum of insulin values after an oral glucose tolerance test in all 95 subjects and w...

To evaluate the role of the sodium pump in resistance control in vivo, we studied vascular responses to potassium, which produces vasodilation by the activation of vascular Na+, K(+)-ATPase, in normotensive volunteers receiving a high salt diet compared with volume-depleted subjects receiving diuretic treatment. Forearm blood flow was measured by strain-gauge plethysmography during small increm...

The right heart pressures and saturations at different sites were measured in 87 normal individuals over a 16-year period during heart cardiac catheterisation. The right heart pressure measurements were comparable with normal values reported in Caucasian subjects. However, the total pulmonary vascular resistance and systemic vascular resistance were significantly different, though the pulmonary...

Vascular insulin resistance induced by inflammatory cytokines leads to the initiation and development of vascular diseases. In humans, circulating TNFα levels are increased during aging, suggesting a correlation between vascular insulin resistance and plasma TNFα levels. Currently, the precise molecular mechanisms of vascular insulin resistance mediated by TNFα are not well characterized. We ai...

Objective: Vascular aging and osteosarcopenic obesity (OSO) refers to age-related endothelial cells and body composition disorders. The purpose of this study was to investigate the effect of 12 weeks resistance training with elastic bands on vascular aging-related serum miR-146 expression level and atherosclerosis risk factors in elderly women with OSO. Materials and Methods: In the present si...

OBJECTIVE Elevated pulmonary vascular resistance and transpulmonary gradient are predictors of increased perioperative mortality in patients undergoing orthotopic heart transplantation. Sodium nitroprusside and prostacyclin PGI2 are routinely used to assess the reversibility of pulmonary vascular resistance and transpulmonary gradient in heart transplant candidates, but their use is limited by ...