{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T17:53:31Z","timestamp":1781632411863,"version":"3.54.5"},"reference-count":45,"publisher":"American Physiological Society","issue":"1","license":[{"start":{"date-parts":[[2023,11,14]],"date-time":"2023-11-14T00:00:00Z","timestamp":1699920000000},"content-version":"vor","delay-in-days":1,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004837","name":"Ministry of Science and Innovation","doi-asserted-by":"publisher","award":["PGC2018-098635-B-I00"],"award-info":[{"award-number":["PGC2018-098635-B-I00"]}],"id":[{"id":"10.13039\/501100004837","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004837","name":"Ministry of Science and Innovation","doi-asserted-by":"publisher","award":["PID2021-127818OB-I00"],"award-info":[{"award-number":["PID2021-127818OB-I00"]}],"id":[{"id":"10.13039\/501100004837","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023,11,23]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>We have studied the role of the intestine, kidney, and several hormones when adapting to changes in dietary P concentration. Normal and parathyroidectomized (PTX) rats were fed pH-matched diets containing 0.1%, 0.6%, and 1.2% P concentrations. 32Pi uptake was determined in the jejunum and kidney cortex brush border membrane vesicles. Several hormone and ion concentrations were determined in the blood and urine of rats. Both jejunum and kidney cortex Pi transport was regulated with 5 d of chronic feeding of P diets in normal rats. Acute adaptation was determined by switching foods on day 6, which was only clearly observed in the kidney cortex of normal rats, with more statistical variability in the jejunum. However, no paradoxical increase of Pi uptake in the jejunum was reproduced after the acute switch to the 1.2% P diet. Pi uptake in the jejunum was parathyroid hormone (PTH)-independent, but in the kidney, the chronic adaptation was reduced, and no acute dietary adaptations were observed. The NaPi2a protein was more abundant in the PTX than the sham kidneys, but contrary to the modest or absent changes in Pi uptake adaptation, the transporter was similarly regulated by dietary P, as in the sham rats. PTH and fibroblast growth factor 23 (FGF23) were the only hormones regulated by all diet changes, even in fasting animals, which exhibited regulated Pi transport despite similar phosphatemia. Evidence of Pi appetite effects was also observed. In brief, our results show new characteristics of Pi adaptations, including a lack of correlation between Pi transport, NaPi2a expression, and PTH\/FGF23 concentrations.<\/jats:p>","DOI":"10.1093\/function\/zqad063","type":"journal-article","created":{"date-parts":[[2023,11,9]],"date-time":"2023-11-09T09:21:56Z","timestamp":1699521716000},"source":"Crossref","is-referenced-by-count":1,"title":["Intestinal and Renal Adaptations to Changes of Dietary Phosphate Concentrations in Rat"],"prefix":"10.1152","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1273-9967","authenticated-orcid":false,"given":"Susana","family":"Lucea","sequence":"first","affiliation":[{"name":"Laboratory of Molecular Toxicology, Department of Biochemistry and Cell and Molecular Biology, University of Zaragoza , E50013 Zaragoza , Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4258-3462","authenticated-orcid":false,"given":"Gema","family":"Chopo-Escuin","sequence":"additional","affiliation":[{"name":"Laboratory of Molecular Toxicology, Department of Biochemistry and Cell and Molecular Biology, University of Zaragoza , E50013 Zaragoza , Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6627-298X","authenticated-orcid":false,"given":"Natalia","family":"Guill\u00e9n","sequence":"additional","affiliation":[{"name":"Laboratory of Molecular Toxicology, Department of Biochemistry and Cell and Molecular Biology, University of Zaragoza , E50013 Zaragoza , Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2907-0427","authenticated-orcid":false,"given":"Cecilia","family":"Sosa","sequence":"additional","affiliation":[{"name":"Laboratory of Molecular Toxicology, Department of Biochemistry and Cell and Molecular Biology, University of Zaragoza , E50013 Zaragoza , Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3457-323X","authenticated-orcid":false,"given":"V\u00edctor","family":"Sorribas","sequence":"additional","affiliation":[{"name":"Laboratory of Molecular Toxicology, Department of Biochemistry and Cell and Molecular Biology, University of Zaragoza , E50013 Zaragoza , Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"24","published-online":{"date-parts":[[2023,11,13]]},"reference":[{"key":"2024031307154549200_bib1","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1016\/bs.vh.2022.04.007","article-title":"Physiological regulation of phosphate homeostasis","volume-title":"Vitamins and Hormones. 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