{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T04:35:16Z","timestamp":1777869316787,"version":"3.51.4"},"reference-count":0,"publisher":"S. Karger AG","license":[{"start":{"date-parts":[[2009,4,3]],"date-time":"2009-04-03T00:00:00Z","timestamp":1238716800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2009,4,3]],"date-time":"2009-04-03T00:00:00Z","timestamp":1238716800000},"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 intestinal absorption of 47Ca was studied in elderly patients. A standard dose of 10 \u03bcCi of 47Ca was given orally. The radioactivity was measured in the plasma, and expressed as percentage of the administered dose per litre plasma. As a control group served 12 patients aged 60\u201380 years, hospitalized for observation for various reasons, receiving no medical treatment and not suffering from any known metabolic bone diseases or other metabolic pathological conditions. Results of kinetic curves demonstrate in elderly patients a decreased absorption with maximum specific activity in plasma reached at 120 min, when compared to data from the literature referring to a group of young people with a mean age of 35 years. Oestrogen treatment, given as ethinyl oestradiol 10 \u03bcg once daily per os for 10 days proved to increase 47Ca absorption as was demonstrated in 2 patients with osteoporosis. The effect of calcitonin (160 MRC units given 45 min before the test) on calcium absorption, in 5 patients with Paget\u2019s disease or osteoporosis appears as bi-phasic: in the first hour depressing calcium absorption and then in the second and third hours increasing the absorption, suggesting a hyperparathyroid state secondary to the calcitonin effect. The vitamin D&lt;sub&gt;2&lt;\/sub&gt; treatment proved to increase calcium absorption.<\/jats:p>","DOI":"10.1159\/000212171","type":"journal-article","created":{"date-parts":[[2009,4,6]],"date-time":"2009-04-06T06:13:46Z","timestamp":1238998426000},"page":"31-36","source":"Crossref","is-referenced-by-count":1,"title":["Intestinal Absorption of\n                    <sup>47<\/sup>\n                    Ca in Elderly Patients with Osteoporosis, Paget\u2019s Disease and Osteomalacia. Effects of Calcitonin, Oestrogen and Vitamin D\n                    <sub>2<\/sub>"],"prefix":"10.1159","author":[{"given":"M.","family":"Lender","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"E.","family":"Verner","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H.","family":"Stankiewicz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.","family":"Menczel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2009,4,3]]},"container-title":["Gerontology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/212171","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/karger.com\/article-pdf\/doi\/10.1159\/000212171","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T13:29:25Z","timestamp":1777555765000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000212171"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,4,3]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1159\/000212171","archive":["Portico"],"relation":{},"ISSN":["0304-324X","1423-0003"],"issn-type":[{"value":"0304-324X","type":"print"},{"value":"1423-0003","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,4,3]]}}}