Quantitative-histochemical studies on .DELTA.5-3.BETA.-hydroxysteroid dehydrogenase and glucose-6-phosphate dehydrogenase activities in the adrenal cortex of female rats during the estrous cycle.

1984 ◽  
Vol 17 (2) ◽  
pp. 119-126 ◽  
Author(s):  
TAKERU FUJII ◽  
MASAYUKI SHONO ◽  
YASUO KISHINO
Keyword(s):  
Estrous Cycle ◽  
Adrenal Cortex ◽  
Hydroxysteroid Dehydrogenase ◽  
Female Rats ◽  
Glucose 6 Phosphate Dehydrogenase

ACUTE ENZYME HISTOCHEMICAL CHANGES IN THE ZONA GLOMERULOSA OF THE RAT ADRENAL CORTEX

1968 ◽  
Vol 59 (3) ◽  
pp. 508-518
Author(s):  
J. D. Elema ◽  
M. J. Hardonk ◽  
Joh, Koudstaal ◽  
A. Arends
Keyword(s):  
Peritoneal Dialysis ◽  
Succinate Dehydrogenase ◽  
Dehydrogenase Activity ◽  
Adrenal Cortex ◽  
Isocitrate Dehydrogenase ◽  
Hydroxysteroid Dehydrogenase ◽  
Zona Glomerulosa ◽  
Acute Changes ◽  
Glucose 6 Phosphate Dehydrogenase ◽  
Histochemical Changes

ABSTRACT Acute changes in glucose-6-phosphate dehydrogenase and isocitrate dehydrogenase activity in the zona glomerulosa of the rat adrenal cortex were induced by peritoneal dialysis with 5 % glucose. Although less clear, the activity of 3β-ol-hydroxysteroid dehydrogenase also seemed to increase as well. No changes were seen in the activity of succinate dehydrogenase. Dialysis with 0.9 % NaCl had no effect on any of the enzymes investigated. The possible significance of these observations is discussed.

THE PITUITARY AND ADRENAL RESPONSES TO ADMINISTRATION OF OESTRIOL IN GONADECTOMIZED RATS

1961 ◽  
Vol 38 (1) ◽  
pp. 50-58 ◽  
Author(s):  
N. E. Borglin ◽  
L. Bjersing
Keyword(s):  
Pituitary Gland ◽  
Adrenal Cortex ◽  
Clinical Experience ◽  
Uterine Cervix ◽  
Morphological Changes ◽  
Physiological Significance ◽  
Female Rats ◽  
Experimental Conditions ◽  
Male And Female ◽  
Male And Female Rats

ABSTRACT Oestriol (oestra-1,3,5(10)-triene-3,16α,17β-triol) is a weakly oestrogenic substance which, however, in contrast to what was formerly believed, is of physiological significance. Its effect is localized largely to the uterine cervix and vagina. Clinical experience argues both for and against an effect on the pituitary gland. This investigation is concerned with the morphological changes in the pituitary gland and adrenal cortex of gonadectomized male and female rats after the injection of oestriol. It was found that oestriol has the same type of action on these glands as other oestrogens, but under the experimental conditions used, this effect proved much weaker than that produced by oestradiol (oestra-1,3,5(10)-triene-3,17β-diol).

Shifts in preferred learning strategy across the estrous cycle in female rats

2004 ◽  
Vol 45 (5) ◽  
pp. 330-338 ◽  
Author(s):  
Donna L Korol ◽  
Emily L Malin ◽  
Kristine A Borden ◽  
Rachel A Busby ◽  
Julia Couper-Leo
Keyword(s):  
Estrous Cycle ◽  
Learning Strategy ◽  
Female Rats

The anorectic effect of fenfluramine is influenced by sex and stage of the estrous cycle in rats

2005 ◽  
Vol 288 (6) ◽  
pp. R1486-R1491 ◽  
Author(s):  
Lisa A. Eckel ◽  
Heidi M. Rivera ◽  
Deann P. D. Atchley
Keyword(s):  
Food Intake ◽  
Estrous Cycle ◽  
Female Rats ◽  
Male Rats ◽  
Gonadal Hormone ◽  
Estrous Female ◽  
Male And Female Rats ◽  
Daily Food ◽  
Hormone Status ◽  
Anorectic Effect

The controls of food intake differ in male and female rats. Daily food intake is typically greater in male rats, relative to female rats, and a decrease in food intake, coincident with the estrous stage of the ovarian reproductive cycle, is well documented in female rats. This estrous-related decrease in food intake has been attributed to a transient increase in the female rat's sensitivity to satiety signals generated during feeding bouts. Here, we investigated whether sex or stage of the estrous cycle modulate the satiety signal generated by fenfluramine, a potent serotonin (5-HT) releasing agent. To examine this hypothesis, food intake was monitored in male, diestrous female, and estrous female rats after intraperitoneal injections of 0, 0.25, and 1.0 mg/kg d-fenfluramine. The lower dose of fenfluramine decreased food intake only in diestrous and estrous females, suggesting that the minimally effective anorectic dose of fenfluramine is lower in female rats, relative to male rats. Although the larger dose of fenfluramine decreased food intake in both sexes, the duration of anorexia was greater in diestrous and estrous female rats, relative to male rats. Moreover, the magnitude of the anorectic effect of the larger dose of fenfluramine was greatest in estrous rats, intermediate in diestrous rats, and least in male rats. Thus our findings indicate that the anorectic effect of fenfluramine is modulated by gonadal hormone status.

063 — (ROD0183) Voltage oscillations induced by intrahippocampal pilocarpine in female rats during the estrous cycle

2014 ◽  
Vol 38 ◽  
pp. 208-209
Author(s):  
M.C.A. Rodrigues ◽  
A.R. Isaac ◽  
B.L.S. Andrade-da-Costa
Keyword(s):  
Estrous Cycle ◽  
Female Rats

Maintenance of Estrous Cycle in Female Rats with Anterior or Posterior Deafferentation of the Suprachiasmatic Nucleus

1988 ◽  
Vol 47 (5) ◽  
pp. 444-452 ◽  
Author(s):  
Kouji Nomura ◽  
Sumio Takahashi ◽  
Seiichiro Kawashima
Keyword(s):  
Estrous Cycle ◽  
Suprachiasmatic Nucleus ◽  
Female Rats
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