{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T09:34:25Z","timestamp":1777887265045,"version":"3.51.4"},"reference-count":0,"publisher":"S. Karger AG","license":[{"start":{"date-parts":[[2009,4,15]],"date-time":"2009-04-15T00:00:00Z","timestamp":1239753600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2009,4,15]],"date-time":"2009-04-15T00:00:00Z","timestamp":1239753600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Gerontology"],"abstract":"<jats:p>The effects of aging on the secretion of and renal sensitivity to atrial natriuretic factor (ANF) were studied concomitantly in both senescent (25- to 34-month-old) and in adult (7- to 13-month-old) female and male Long-Evans rats. The plasma concentrations of ANF, measured in response to either a mild stimulation induced by a hypertonic volume expansion (i.e., 20 min after the onset of a continuous infusion during 15 min of a 2.5% NaCl solution; n = 18 old and 23 adult rats) or an intense stimulation produced by morphine injection (i.e., 30 min after an intraperitoneal injection of 5 mg morphine\/100 g body weight; n = 11 old and 12 adult rats), were significantly lower (approximately -34 and -80%, respectively) in old as compared with adult animals. Acute intravenous injection of exogenous rat ANF (0.10 and 0.40\u03bcg\/l00g body weight) induced similar natriuretic, diuretic, and kaliuretic effects in aged (n = 18) and in adult (n = 23) rats. The present data suggest that the significantly reduced (about -20%) natriuretic and kaliuretic responses of the aged rat, observed 20 min after the onset of hypertonic volume expansion, could be partly due to a primary defect in cardiac production and\/or release of ANF rather than to a reduction of renal responsivity to ANF.<\/jats:p>","DOI":"10.1159\/000213776","type":"journal-article","created":{"date-parts":[[2009,4,20]],"date-time":"2009-04-20T11:36:39Z","timestamp":1240227399000},"page":"79-86","source":"Crossref","is-referenced-by-count":1,"title":["Age-Related Changes in Secretion and Metabolic Effects of Atrial Natriuretic Factor in Rats"],"prefix":"10.1159","author":[{"given":"J.","family":"Rakotondrazafy","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.J.","family":"Davicco","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.P.","family":"Barlet","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Brudieux","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2009,4,15]]},"container-title":["Gerontology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/karger.com\/article-pdf\/doi\/10.1159\/000213776","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T04:06:41Z","timestamp":1777608401000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000213776"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,4,15]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1159\/000213776","archive":["Portico"],"relation":{},"ISSN":["0304-324X","1423-0003"],"issn-type":[{"value":"0304-324X","type":"print"},{"value":"1423-0003","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,4,15]]}}}