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Effects of repetitive administration of corticotropin-releasing hormone combined with lysine vasopressin on plasma adrenocorticotropin and cortisol levels in secondary adrenocortical insufficiency.
J Clin Endocrinol Metab
December 1990
Department of Internal Medicine, Kyoto University Faculty of Medicine, Japan.
To examine the functioning of the hypothalamo-pituitary-adrenocortical axis in secondary adrenocortical insufficiency, we administered 100 micrograms synthetic human CRH, iv, plus 10 U lysine-8-vasopressin (LVP), im, three times daily for 3 consecutive days. The changes in plasma ACTH and cortisol levels during the administration and the response to an insulin tolerance test (ITT) conducted before and after the administration were determined. In three patients with isolated ACTH deficiency, basal plasma ACTH and cortisol levels were undetectablly low, and there was no response noted in the ITT or during CRH-LVP administration throughout the observation period.
View Article and Find Full Text PDFLysine-8-vasopressin (LVP) for 10 days and in doses up to 13.5 LVP units did not significantly alter the Hamilton Depression Rating Scale scores of 12 severely depressed, treatment-resistant patients who were evaluated in a double-blind crossover study. The 24-h rhythms of melatonin, cortisol, growth hormone and prolactin appeared remarkably stable over the course of repeated measurement.
View Article and Find Full Text PDFSystemically administered lysine-8-vasopressin (LVP; 16-128 micrograms/kg) was found to induce a potent and dose-dependent antinociceptive effect, as measured by the tail-flick test in the rat. This effect could be seen in the absence of any significant change in general activity, indicating that it was not due to sedation or general motor debilitation. The antinociceptive effect of LVP does not appear to be mediated by endogenous opiates or other pituitary hormones, as evidenced by: 1) the lack of antagonism by the opiate receptor blocker naloxone, 2) the lack of cross-tolerance with morphine, and 3) its persistence after hypophysectomy.
View Article and Find Full Text PDFThe Lysin-8-Vasopressin test has been experimented in ten healthy subjects during normocaloric balanced diet and after hyperproteic-normocaloric diet. The levels of ACTH, Cortisol and GH are significantly more elevated after hyperproteic-normocaloric diet than in basal conditions. The levels of Prolactin do not show any remarkable change.
View Article and Find Full Text PDFVasopressin in anergic schizophrenia. A cross-over study with lysine-8-vasopressin and placebo.
Psychopharmacology (Berl)
December 1981
Sixteen out of 19 patients suffering from chronic anergic schizophrenia completed a placebo-controlled cross-over study with lysine-8-vasopressin (LVP), following a schedule of 1 week of placebo, 3 weeks of LVP, starting with 22.5 IU/day, gradually increased to 67.5 IU/day, and finally 4 weeks of placebo.
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