Hemodynamic Changes in Hypophysectomized Rats
نویسندگان
چکیده
منابع مشابه
Hemodilution mediates hemodynamic changes during acute expansion in unanesthetized rats.
Studies were carried out to determine the relative importance of volume and hemodilution on hemodynamic adjustments to acute volume expansion. Systemic and renal hemodynamics were monitored in unanesthetized and unrestrained rats during progressive and equivalent blood volume expansion with saline (Sal; 1, 2, and 4% body wt), 7% BSA solution (0.35, 0.7, and 1.4% body wt), and reconstituted whol...
متن کاملStress-induced alterations of immunity in hypophysectomized rats.
Stress-induced suppression of mitogen-induced lymphocyte proliferation was demonstrated in hypophysectomized rats. Stress effects on the numbers of peripheral blood lymphocytes and lymphocyte subsets and on splenic natural killer cell activity require the presence of pituitary. A pituitary-dependent restraining influence on stress-induced alteration of immunity is described. These results indic...
متن کاملEffect of pituitary extracts upon glucose uptake by diaphragms from normal, hypophysectomized, and hypophysectomized-adrenalectomized rats.
The measurement of the glucose uptake of rat diaphragm muscle in vitro is of interest because striated muscle is quantitatively the most important tissue for glucose disposal in the animal body and because glucose uptake, for which the hexokinase reaction is presumably the rate-determining enzymatic step, has been shown to be under hormonal control. The evidence for hormonal control obtained so...
متن کاملMaintenance of spermatogenesis with testosterone or dihydrotestosterone in hypophysectomized rats.
In an earlier study (Ahmad, Haltmeyer & Eik-Nes, 1973), we reported maintenance of spermatogenesis in tubules of hypophysectomized rats adjoining intratesticular implants of silastic capsules containing testosterone or dihydrotestosterone (DHT). It was suggested that the local differences in the testes of the rats receiving the two treatments might be attributed to the relative amounts of hormo...
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• Earlier experiments showed that the low blood pressure of hypophysectomized rats was due to a decreased cardiac output, while peripheral resistance was slightly above normal. This was also the case in hypophysectomized man. Acute loading by infusion of polyvinylpyrrolidone, PVP, into the right side of the heart resulted in an increase of cardiac output and work to 2-4 times the basal, preinfu...
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ژورنال
عنوان ژورنال: Circulation Research
سال: 1959
ISSN: 0009-7330,1524-4571
DOI: 10.1161/01.res.7.6.907