Intracerebroventricular Passive Immunization. II. Intracerebroventricular Infusion of Neuropeptide Antisera Can Inhibit Neuropeptide Signaling in Peripheral Tissues1
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چکیده
منابع مشابه
Effects of intracerebroventricular injection of neuropeptide Y on energy metabolism.
Our objective was to find out if central injection of neuropeptide Y (NPY) would alter brown fat thermogenesis and white fat lipoprotein lipase activity. The following three groups of Sprague-Dawley rats received five injections over 24 h into the right lateral ventricle: 1) NPY (5 micrograms/injection) and ad libitum food; 2) NPY (5 micrograms/injection) and food restricted to control intake; ...
متن کاملIntracerebroventricular neuropeptide Y infusion precludes inhibition of glucose and VLDL production by insulin.
Recent evidence demonstrates that hypothalamic insulin signaling is required for inhibition of endogenous glucose production. The downstream mechanisms that are responsible for the effects of hypothalamic insulin receptor activation on hepatic fuel flux remain to be determined. To establish whether downregulation of neuropeptide Y (NPY) release by insulin is mandatory for its capacity to suppre...
متن کاملIntracerebroventricular neuropeptide Y stimulates bile secretion via a vagal mechanism.
UNLABELLED The effect of intracerebroventricular injection of neuropeptide Y on biliary secretion was studied in conscious dogs, prepared with gastric and duodenal fistulas and cerebroventricular guides. Bile secretion was increased in a dose-dependent fashion by intracerebroventricular neuropeptide Y. The peak increase was seen after 500 pM/kg of neuropeptide Y which resulted in a 30 x 2% incr...
متن کاملEthanol withdrawal in rats is attenuated by intracerebroventricular administration of neuropeptide Y.
AIMS The effects of intracerebroventricular administration of neuropeptide Y (NPY) on ethanol withdrawal were studied in rats. METHODS Ethanol was administered intragastrically five times daily for 4 days. At 16-17 h after the last infusion of ethanol, rats were rated for withdrawal using a score based on three signs: irritability, tremor and rigidity. Subsequently, the rats received an injec...
متن کاملPostnatal intracerebroventricular exposure to neuropeptide Y causes weight loss in female adult rats.
We investigated the effect of repetitive postnatal (2-7 days) intracerebroventricular administration of neuropeptide Y (NPY) on food intake and body weight gain in the 3- to 120-day-old Sprague-Dawley rats. NPY caused a 32% transient increase in body weight gain with elevated circulating insulin concentrations within 24 h. This early intervention led to the persistence of hyperinsulinemia and r...
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ژورنال
عنوان ژورنال: Endocrinology
سال: 1998
ISSN: 0013-7227,1945-7170
DOI: 10.1210/endo.139.1.5643