Cocaine-induced cytopathy and apoptosis of vascular smooth muscle cells from spontaneous hypertensive rats

Smooth muscle apoptosis during vascular regression in spontaneously hypertensive rats.

We previously reported that apoptosis is increased in smooth muscle cells cultured from the aorta of spontaneously hypertensive rats versus normotensive controls. As an initial in vivo exploration, we now examined smooth muscle cell apoptosis regulation during the regression of vascular hypertrophy in the thoracic aorta media of spontaneously hypertensive rats receiving the antihypertensive dru...

Studies of hypertension-induced vascular hypertrophy in cultured smooth muscle cells from spontaneously hypertensive rats.

Mechanisms of vascular hypertrophy induced by hypertension were studied in cultured aortic smooth muscle cells from spontaneously hypertensive rats (SHR) and stroke-prone SHR (SHRSP) and compared with those from normotensive Wistar-Kyoto (WKY) rats. Fetal calf serum-stimulated ornithine decarboxylase (ODC) activity of cultured smooth muscle cells was greater in SHR and SHRSP than in WKY. Beta- ...

Adrenergic neurotransmission in vascular smooth muscle from spontaneously hypertensive rats.

The goal of this study was to compare adrenergic neurotransmlssion in isolated vascular smooth muscle from spontaneously hypertensive (SHR) and normotensive rats. Tail arteries, excised from adult SHR and normotensive rats, were cut helically into strips that were mounted in organ chambers between two platinum wire electrodes; isometric contractions were recorded. Vascular responsiveness was de...

Intracellular Mg++ concentrations in vascular smooth muscle cells and heart muscle cells in spontaneously hypertensive rats

Insulin-Induced Ca Transport Is Altered in Vascular Smooth Muscle Cells of Spontaneously Hypertensive Rats

Intracellular calcium may be a mediator of insulin action in vascular smooth muscle cells. This study investigates effects of physiological concentrations of insulin on intracellular free calcium concentrations in primary unpassaged vascular smooth muscle cells derived from 3and 17-week-old normotensive rats (Wistar and Wistar-Kyoto) and spontaneously hypertensive rats (SHR). Underlying mechani...