{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T00:06:01Z","timestamp":1791417961775,"version":"4.3.3"},"reference-count":21,"publisher":"American Physiological Society","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American Journal of Physiology-Endocrinology and Metabolism"],"published-print":{"date-parts":[[2007,6]]},"abstract":"<jats:p> A new, completely in vivo method of measuring the rate of intestinal phosphate absorption has been developed. As expected from previous in vitro and ex vivo measurements, intestinal phosphate absorption is potently and rapidly stimulated by 1,25-dihydroxyvitamin D<jats:sub>3<\/jats:sub>. The response is saturated with as little as 11.3 ng of 1,25-dihydroxyvitamin D<jats:sub>3<\/jats:sub> per day, consistent with a genomic mechanism. The effect of 1,25-dihydroxyvitamin D<jats:sub>3<\/jats:sub> disappears when the dosing solution of phosphate is at 2 M, suggesting that 1,25-dihydroxyvitamin D<jats:sub>3<\/jats:sub> stimulates active transport of phosphate but not diffusion of phosphate. Finally, unlike findings resulting from in vitro or ex vivo experiments, no evidence in vivo was obtained that phosphate absorption requires sodium or is inhibited by potassium. <\/jats:p>","DOI":"10.1152\/ajpendo.00654.2006","type":"journal-article","created":{"date-parts":[[2007,2,14]],"date-time":"2007-02-14T02:57:47Z","timestamp":1171421867000},"page":"E1917-E1921","source":"Crossref","is-referenced-by-count":41,"title":["Characterization of intestinal phosphate absorption using a novel in vivo method"],"prefix":"10.1152","volume":"292","author":[{"given":"Katie Beth","family":"Williams","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hector F.","family":"DeLuca","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"24","reference":[{"key":"R1","doi-asserted-by":"publisher","DOI":"10.1093\/jn\/104.8.1056"},{"key":"R2","unstructured":"Harrison HE, Harrison HC. 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