Water potential receptors in the skin regulate blood perfusion in the ventral pelvic patch of toads.

Blood cell flux (BCF) in ventral pelvic skin capillaries was measured in conscious unrestrained Bufo bufo, using a laser Doppler flowcytometer. Hydrated toads responded to water contact with a small but significant increase in BCF. Dehydration alone did not change the BCF in seat patch skin before water contact.

Angiotensin II elicits water seeking behavior and the water absorption response in the toad Bufo bufo.

Fully hydrated toads, Bufo bufo were acclimated to a simulated terrestrial habitat, with access to shelters and water. To get from the shelters to the water, the toads had to walk across the pan of an Ohaus balance and the body weights were recorded on a computer. Toads were placed inside shelters immediately following injection of human angiotensin II (A II), Thr(8)-saralasin, or Ringer's in the dorsal lymph sac, and their behavior was recorded continuously by video surveillance.

Physiological and endocrinological responses during prolonged exercise in hatchery-reared rainbow trout (Oncorhynchus mykiss).

Rainbow trout (Oncorhynchus mykiss) were subjected to vigorous exercise (1.5 body length s-1), low exercise (0.5 body length s-1) or still-water (0.

The prevalence and etiology of impotence in 101 male hypertensive outpatients.

Erectile dysfunction and impotence has a high prevalence among male hypertensive patients. Whether this relates mainly to specific drug side effects or to primary pathogenic disorders is unknown. In the present study 101 male patients from our outpatient hypertension clinic answered detailed questionnaires about hypertension and sexual function.

Cu uptake, metabolism and elimination in fed and starved European eels (Anguilla anguilla) during adaptation to water-borne Cu exposure.

64Cu accumulation and total Cu concentrations were measured in gill filaments, plasma, liver and bile of fed and starved European eels (Anguilla anguilla) during 28 days of exposure to 12 and 94 micrograms Cu l-1. Branchial Cu uptake was found to be 0.03 and 0.