Osmolalité et sécrétion de vasopressine au cours de la gestation chez Meriones crassus
| Autor: | K. Baddouri, A. Quyou |
|---|---|
| Přispěvatelé: | Revues Inra, Import |
| Rok vydání: | 1991 |
| Předmět: |
Osmole
Meriones crassus Vasopressin medicine.medical_specialty Biology biology.organism_classification Plasma renin activity Thirst Plasma osmolality [SDV.AEN] Life Sciences [q-bio]/Food and Nutrition Endocrinology Internal medicine [SDV.BDD] Life Sciences [q-bio]/Development Biology Blood plasma medicine Osmotic pressure medicine.symptom [SDV.BDLR] Life Sciences [q-bio]/Reproductive Biology |
| Zdroj: | Reproduction Nutrition Development. 31:535-539 |
| ISSN: | 0926-5287 |
| Popis: | Endocrine and renal parameters were measured in a desert rodent, Meriones crassus. In virgin females, the urine and plasma osmolality was 2018 +/- 136 and 325 +/- 3 mosm/kg (m +/- SEM), the level of circulating vasopressin, 162 +/- 22 pg/ml and the plasma renin activity 14.3 +/- 0.9 ng/ml per h. During pregnancy, the renin-angiotensin system was activated, and the plasma vasopressin values remained similar to those of virgin animals in spite of a lower blood plasma osmotic pressure. During this period, the regulation of the hydromineral balance was modified. These data suggest a lowering of the osmotic thresholds for vasopressin and possibly also for thirst during pregnancy in this desert rodent. |
| Databáze: | OpenAIRE |
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