1. Male Wistar rats develop systolic arterial hypertension when housed in glass metabolism cages. The present experiments were designed to investigate the involvement of the adrenal glands in this form of hypertension. 2. Rats were bilaterally adrenalectomized and maintained by either salt supplementation (1% sodium chloride solution instead of tap water to drink) or steroid replacement (cortic...

This study tested the hypothesis that repeated exposure to low levels of sarin, pyridostigmine bromide (PB) or their combination, at doses equivalent to those possibly experienced by veterans of the 1991 Persian Gulf War, could lead to persistent or delayed autonomic effects and thus help to explain the cause of clinical findings in this population. Male Sprague-Dawley rats were treated for 3 w...

Drinking response to hypertonio saline, a cellular thirst stimulus, and to isoproterenol, probably an extracellular thirst stimulus, was normal in rats with bilateral lesions in the basolateral region of the amygdala. The overnight water intake of the lesioned rats was a little higher than normal. However, the lesioned rats showed a major impairment in learning to avoid ingesting a poisonous so...

Background: Drinking water from natural sources in coastal Bangladesh has become contaminated by varying degrees of salinity due to saltwater intrusion from rising sea levels, cyclone and storm surges and upstream withdrawal of freshwater. Objective: Our objective was to estimate salt intake from drinking water sources and examine environmental factors that may explain a seasonal excess of hype...

Two saline soils taken from two sites inside the Mosul city of (mrs1, mrs2), and types water, drinking water well were exposed to magnetic strengths (4000,2000) gauss, three transparent cylinders with a diameter 140 mm height 500 used. The leaching process continued until infiltration 5 liters twice repetition for each condition stability soil conditions (moisture, bulk density) temperature dif...

Intraperitoneal injection of 5 mumol of acetone/g, body weight, into 3 rats previously fed 1% acetone (v/v) in their drinking water resulted in the appearance in blood serum of 16 +/- 2 nmol of 1,2-propanediol/ml and 8 +/- 1 nmol of 2,3-butanediol/ml. No detectable 1,2-propanediol or 2,3-butanediol was found in the serum of animals after acetone or saline injection without prior addition of ace...

The present study sought to determine whether increases in arterial blood pressure inhibited drinking behavior evoked by ANG II, hyperosmolality, or hypovolemia in rats. Cumulative water intakes in 60- or 90-min tests and latency to the first lick were recorded as indexes of thirst. During intravenous infusions of 100 ng. kg(-1). min(-1) ANG II, attenuation of the induced increases in arterial ...

The present studies investigated the influence of presystemic signals on the control of thirst, salt appetite, and vasopressin (VP) secretion in rats during nonhypotensive hypovolemia. Rats were injected with 30% polyethylene glycol (PEG) solution, deprived of food and water overnight, and then allowed to drink water, 0.15 M NaCl, or 0.30 M NaCl. The PEG treatment, which produced 30-40% plasma ...