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Normal pubertal development in humans involves two distinct processes: maturation of adrenal androgen secretion (adrenarche) and activation of the hypothalamic–pituitary–gonadal axis (gonadarche). One factor thought to contribute to the adrenarche in man is increased adrenal 17-hydroxylase (CYP17) activity.
Duarte, Pignatelli +4 more
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Pathological examination was performed on a male 196-day-old Sprague-Dawley rat with hindrance of the motility. A tumor was found to locate in the right lateral ventricle. It was poorly demarcated, and was reddish gray in color. The tumor cells were pleomorphic, fusiform or polygonal in shape and varied in size, sometimes with formation of ...
K, Yamasaki, Y, Fukushima
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Metacognition in the Rat [PDF]
The ability to reflect on one's own mental processes, termed metacognition, is a defining feature of human existence [1, 2]. Consequently, a fundamental question in comparative cognition is whether nonhuman animals have knowledge of their own cognitive states [3].
Foote, Allison L., Crystal, Jonathon D.
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n ...
Harrington, Charles +1 more
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IN reference to the correspondence that appeared in last week's issue (p. 513) upon the above subject, permit me to state I have found by practical experience that the ferocity and voracity of rats is very great. They devour one another at all times and under all circumstances, whether living in a wild state or under the influence of domestication.
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The effect of rat galanin in rats [PDF]
La galanine est un neuropeptide dont l'effet sur l'insulinosecretion est controverse. Les auteurs ont ici teste l'effet de la galanine sur la reponse insulinique au glucose chez rats conscients. Ils observent une inhibition significative de l'insulinosecretion aussi bien par la galanine de rat que par la galanine porcine.
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Conclusions and summaryWe have demonstrated that ligation of the common bile duct in the rat is followed within a few days by necrotizing hemorrhagic pancreatitis, considerable edema of the gland, fat necrosis, and often relatively large amounts of yellow ascitic fluid.
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