دورية أكاديمية
Is vasopressin preferentially released from corticotropin-releasing factor and vasopressin containing nerve terminals in the median eminence of adrenalectomized rats?
| العنوان: | Is vasopressin preferentially released from corticotropin-releasing factor and vasopressin containing nerve terminals in the median eminence of adrenalectomized rats? |
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| المؤلفون: | de Goeij DC; Department of Pharmacology, Medical Faculty, Free University, Amsterdam, The Netherlands., Berkenbosch F, Tilders FJ |
| المصدر: | Journal of neuroendocrinology [J Neuroendocrinol] 1993 Feb; Vol. 5 (1), pp. 107-13. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Wiley & Sons Country of Publication: United States NLM ID: 8913461 Publication Model: Print Cited Medium: Print ISSN: 0953-8194 (Print) Linking ISSN: 09538194 NLM ISO Abbreviation: J Neuroendocrinol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: <2010->: Malden, MA : Wiley & Sons Original Publication: Eynsham, Oxon, UK : Oxford University Press, c1989- |
| مواضيع طبية MeSH: | Corticotropin-Releasing Hormone/*metabolism , Median Eminence/*metabolism , Nerve Endings/*metabolism , Vasopressins/*metabolism, Adrenalectomy ; Animals ; Arginine Vasopressin/metabolism ; Axonal Transport/drug effects ; Colchicine/pharmacology ; Immunohistochemistry ; Male ; Median Eminence/cytology ; Radioimmunoassay ; Rats ; Rats, Wistar ; Species Specificity |
| مستخلص: | The effects of adrenalectomy (ADX) on the amounts of immunoreactive corticotropin-releasing factor (CRFi) and arginine vasopressin (AVPi) that are stored in the zona externa of the median eminence (ZEME) were investigated by means of quantitative immunocytochemistry. Although ADX of male Wistar rats for 1 week or 4 weeks did not affect CRFi in the ZEME as compared to sham-operated or intact controls, AVPi showed a progressive accumulation. The ratio of AVPi over CRFi in the ZEME had already increased 1 day after ADX. However, it should be noted that the exact changes in CRFi and AVPi as measured by radioimmunoassay and/or quantitative immunocytochemistry were dependent on the substrain of rats used. The secretion rate of CRFi and AVPi was estimated in 1 week and 4 week ADX rats, by measuring the disappearance rate of CRFi and AVPi from the ZEME after blockade of fast axonal transport, by a low non-toxic dose of colchicine (5 micrograms per rat). In contrast to intact rats, where this dose of colchicine did not affect CRFi or AVPi in the ZEME, ADX rats showed a progressive depletion of the CRFi and AVPi stores as measured 2.5 and 5 h later. In 1 week ADX rats, CRFi and AVPi both disappeared at a rate of 7% to 8% of their stores per hour. In contrast, after 4 weeks of ADX the fractional disappearance rates of CRFi and AVPi were different and were 3% and 8% of the content per hour, respectively.(ABSTRACT TRUNCATED AT 250 WORDS) |
| المشرفين على المادة: | 11000-17-2 (Vasopressins) 113-79-1 (Arginine Vasopressin) 9015-71-8 (Corticotropin-Releasing Hormone) SML2Y3J35T (Colchicine) |
| تواريخ الأحداث: | Date Created: 19930201 Date Completed: 19930607 Latest Revision: 20190920 |
| رمز التحديث: | 20240627 |
| DOI: | 10.1111/j.1365-2826.1993.tb00369.x |
| PMID: | 7683555 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 0953-8194 |
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| DOI: | 10.1111/j.1365-2826.1993.tb00369.x |