Title : Vasopressin gene transcripts in mineralocorticoid hypertension: an in situ study.

Pub. Date : 1992 Nov

PMID : 1336517






6 Functional Relationships(s)
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1 OBJECTIVE: To test the hypothesis that enhanced expression of the vasopressin gene accompanies the development of deoxycorticosterone acetate (DOCA)-salt hypertension in the rat and to compare the response with those observed during chronic hypernatremia. Desoxycorticosterone Acetate arginine vasopressin Rattus norvegicus
2 OBJECTIVE: To test the hypothesis that enhanced expression of the vasopressin gene accompanies the development of deoxycorticosterone acetate (DOCA)-salt hypertension in the rat and to compare the response with those observed during chronic hypernatremia. Desoxycorticosterone Acetate arginine vasopressin Rattus norvegicus
3 RESULTS: Vasopressin mRNA levels were increased in the paraventricular nucleus during the established and chronic stages of DOCA-salt hypertension, but were unchanged in the supraoptic nucleus. Desoxycorticosterone Acetate arginine vasopressin Rattus norvegicus
4 Urinary excretion of vasopressin was increased in the prehypertensive, established and chronic phases of DOCA-salt hypertension, whereas plasma vasopressin levels were increased only in the chronic phase. Desoxycorticosterone Acetate arginine vasopressin Rattus norvegicus
5 CONCLUSION: Whereas hypernatremic rats showed markedly elevated vasopressin transcripts in the supraoptic and paraventricular nuclei, DOCA-salt hypertension is associated with increased vasopressin mRNA in the paraventricular but not the supraoptic nucleus. Desoxycorticosterone Acetate arginine vasopressin Rattus norvegicus
6 The response in the paraventricular nucleus may explain part of the increased peripheral vasopressin levels and suggests that this nucleus makes a critical contribution to the pathogenesis of DOCA-salt hypertension. Desoxycorticosterone Acetate arginine vasopressin Rattus norvegicus