... euthermic control) or exposed to simulated onset of winter in an environmental chamber, by progression to 1 h:23 h light:dark and 4°C over 4 weeks. In vivo acute cooling (core temperature T b =25°C) in euthermic controls led to a hypotension and bradycardia, but preserved cardiac output. CA induced...

... in an environmental chamber by progressive acclimation to 1 h:23 h L:D and 4°C over 4 weeks. In vivo , acute cold exposure (core temperature, T b =25°C) resulted in hypotension (approximately –20%) due to low cardiac output (approximately –30%) accompanying a bradycardia (approximately –50%). Cold acclimation (CA...

... adrenergic mechanisms because increases in pressure in response to ANG infusion were unaffected by the presence of the alpha antagonist phentolamine. Angiotensin-induced vasoconstriction was shown to be an important mechanism in arterial blood pressure regulation in the face of an acute hypotensive...

... kg −1 induced a biphasic response in blood pressure, with a significant hypertensive response during the initial 10 min, followed by a significant hypotension of 70–75% compared with the initial blood pressure after 50 min and continuing until approximately 80 min post-injection. The co...