Medial Hypothalamus
Mostrando 25-36 de 74 artigos, teses e dissertações.
-
25. Substance P-containing neurons of the avian suprachiasmatic nucleus project directly to the nucleus of Edinger-Westphal.
Retrograde and anterograde pathway tracing techniques were used in the pigeon to study afferent visual input from the suprachiasmatic nucleus (SCN) of the hypothalamus to the nucleus of Edinger-Westphal (EW), the parasympathetic visceral efferent component of the oculomotor complex. Horseradish peroxidase injected into the EW retrogradely labeled numerous ne
-
26. Complex Regulation of Mammalian Target of Rapamycin Complex 1 in the Basomedial Hypothalamus by Leptin and Nutritional Status
The medial basal hypothalamus, including the arcuate nucleus (ARC) and the ventromedial hypothalamic nucleus (VMH), integrates signals of energy status to modulate metabolism and energy balance. Leptin and feeding regulate the mammalian target of rapamycin complex 1 (mTORC1) in the hypothalamus, and hypothalamic mTORC1 contributes to the control of feeding a
The Endocrine Society.
-
27. Visualization of mu1 opiate receptors in rat brain by using a computerized autoradiographic subtraction technique.
We have developed a quantitative computerized subtraction technique to demonstrate in rat brain the regional distribution of mu1 sites, a common very-high-affinity binding site for both morphine and the enkephalins. Low concentrations of [D-Ala2, D-Leu5]enkephalin selectively inhibit the mu1 binding of [3H]dihydromorphine, leaving mu2 sites, while low morphi
-
28. Electrophysiological analysis of inhibitory synaptic mechanisms in the preoptic area of the rat.
1. Extracellular recordings were made from single neurones in the medial preoptic-anterior hypothalamus of rats anaesthetized with urethane or pentobarbitone 2. Stimulation of the arcuate--ventromedial area evoked inhibition in 76% of neurones; inhibition occurred as the initial response in 26% of neurones, followed orthodromic excitation in 26% and antidrom
-
29. Transcription factors in the development of medial hypothalamic structures
The hypothalamus has historically been subdivided into nuclei, agglomerations of cell bodies that are visually distinct in histological sections. Regulatory functions of metabolism have been assigned to the various hypothalamic nuclei principally by analysis of animals with lesions of individual nuclei (39) but also via various means of stimulation, such as
American Physiological Society.
-
30. The effects of nucleus raphe magnus lesions on an ascending thermal pathway in the rat.
1. In the thalamus and hypothalamus of rats, anaesthetized with Urethane, single unit recordings have been made from cells which respond to small innocuous changes in scrotal skin temperature applied with a water-perfused brass thermode. 2. Once a scrotal temperature-sensitive neurone had been isolated the brain stem was electrolytically lesioned through imp
-
31. Expression of vasopressin receptors in hamster hypothalamus is sexually dimorphic and dependent upon photoperiod.
The distribution of vasopressin receptors was studied in the brain of a photoperiodic animal, the Siberian hamster. Attention was focused on [3H]vasopressin binding sites located in the hypothalamic ventromedial nucleus, medial tuberal nucleus, and ventral premammillary nucleus in males or females kept in long or short photoperiod conditions. Displacement ex
-
32. A search for brain stem cell groups integrating the defence reaction in the rat.
The defence areas of the rat brain stem have been extensively explored using electrical and chemical stimulation in an attempt to locate the regions containing the perikarya of neurones which may initiate or integrate the visceral and behavioural components of the defence reaction. In rats anaesthetized with alphaxalone-alphadolone, a cannula electrode was u
-
33. Role of the hypothalamus in the control of atrial natriuretic peptide release.
Stimulation of the region antero-ventral to the third cerebral ventricle (AV3V) by a cholinergic drug, carbachol, and lesions of the AV3V have been demonstrated in previous studies to either augment or decrease sodium excretion, respectively. Atrial natriuretic peptide (ANP) dramatically increases renal sodium excretion and has been localized to brain areas
-
34. Cholecystokinin octapeptide-like immunoreactivity: histochemical localization in rat brain.
Cholecystokinin octapeptide-like (CCK-OP-like) immunoreactivity was localized in the rat brain by using the indirect immunofluorescence method. Specificity in immunohistochemical studies was demonstrated by the virtual elimination of staining with either preimmune sera or sera preadsorbed with CCK-OP and by the achievement of similar fluorescent patterns wit
-
35. NH2-terminal specificity and axonal localization of adrenocorticotropin binding sites in rat median eminence.
Adrenocorticotropin binding sites in the rat median eminence have been localized in vivo. These binding sites occur in the basalar zone, which is rich in axonal endings. Using competitive binding and quantitative light-microscope radioautography, we found that the median-eminence binding site, in contradistinction to the adrenal receptor, binds specifically
-
36. Emotion-induced changes in human medial prefrontal cortex: I. During cognitive task performance
Regional cerebral blood flow (BF) was examined in regions of the medial prefrontal cortex (MPFC) with positron-emission tomography while subjects performed two cognitive tasks, reading nouns aloud and generating appropriate verbs for the same nouns. The control task was passive viewing of the same words. BF was reduced in regions of the MPFC during word
The National Academy of Sciences.