358 research outputs found
Strategies for resection of lesions in the motor area: preliminary results in 42 surgical patients
Family Histories and Women's Retirement: The Role of Childbearing and Marital Experiences
Corticotropin-releasing factor-immunoreactive neurons of the paraventricular nucleus become vasopressin positive after adrenalectomy.
The immunoperoxidase technique was used to study the effect of adrenalectomy on vasopressin (VP) immunoreactivity in the hypothalamic paraventricular nucleus of rat. In control animals, relatively few VP-immunostained parvocellular neurons were found in addition to a large population of magnocellular VP neurons. Seven to 14 days after bilateral adrenalectomy, VP immunostaining increased markedly in specific subdivisions of the paraventricular nucleus. In contrast to normal animals, VP immunoreactivity was localized in a large number of parvocellular neurons. Colchicine treatment, on the other hand, did not significantly increase the number of VP-immunostained parvocellular neurons found in control rats. These observations suggest that adrenalectomy increases the number of VP-positive neurons and appears to increase the intensity of VP immunoreactivity specifically in parvocellular neurons. VP parvocellular neurons are confined to those paraventricular nucleus subdivisions that are known to project to the external zone of the median eminence. Moreover, their distribution pattern is very similar, if not identical, to that of the corticotropin-releasing factor (CRF) immunoreactive cells. Parvocellular neurons on adjacent thin sections could be stained for both CRF and VP. Thus, adrenalectomy seems to increase VP staining in CRF immunoreactive parvocellular neurons, which innervate the external zone of the median eminence
Increased levels of substance P and cholecystokinin in rat cerebral cortex following repeated electroconvulsive shock and subchronic treatment with a serotonin uptake inhibitor
Suitability of [ 15 O ]Water and PET to Detect Activation-Induced Cerebral Blood Flow Changes in Brain Tissue Altered by Brain Tumors
How do you provide treatment if different people need different things at different times?
- …