Angiotensin AT1a shRNA Demonstrates Interactions between Brainstem Angiotensin AT1a Receptors and Angiotensin Converting Enzyme 2

Renal endosomes contain angiotensin peptides, converting enzyme, and AT1A receptors.

Kidney cortex and proximal tubular angiotensin II (ANG II) levels are greater than can be explained on the basis of circulating ANG II, suggesting intrarenal compartmentalization of these peptides. One possible site of intracellular accumulation is the endosomes. In the present study, we tested for endosomal ANG I, ANG II, angiotensin type 1A receptor (AT1A), and angiotensin converting enzyme (...

Angiotensin Converting Enzyme in Sarcoidosis

Deficiency in angiotensin AT1a receptors prevents diabetes-induced hypertension.

The renin-angiotensin system has been implicated in the etiology of the cardiovascular complications of diabetes. Our studies extend these findings to show a specific role for angiotensin AT1a receptors in mediating diabetes-induced hypertension. Male angiotensin AT1a knockout (AT1aKO) and wild-type (AT1aWT) mice with arterial telemetric catheters were injected with streptozotocin (STZ; 150 mg/...

The effect of progressive aerobic continuous training on angiotensin-1, angiotensin-2 and angiotensin-converting enzyme type 2 in patients with heart failure

Background: Chronic hypertension causes structural and functional changes in the heart, ultimately leading to heart failure (HF), which further increases mortality and morbidit. HF is a complex clinical syndrome caused by various structural or functional abnormalities of the heart that impair the filling capacity of the ventricles. The findings of various trials have shown the association betwe...

Cardiovascular autonomic control in mice lacking angiotensin AT1a receptors.

Studies examined the role of angiotensin (ANG) AT1a receptors in cardiovascular autonomic control by measuring arterial pressure (AP) and heart rate (HR) variability and the effect of autonomic blockade in mice lacking AT1a receptors (AT1a -/-). Using radiotelemetry in conscious AT1a +/+ and AT1a -/- mice, we determined 1) AP and pulse interval (PI) variability in time and frequency (spectral a...