{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T03:44:36Z","timestamp":1777866276962,"version":"3.51.4"},"reference-count":0,"publisher":"S. Karger AG","license":[{"start":{"date-parts":[[2009,1,30]],"date-time":"2009-01-30T00:00:00Z","timestamp":1233273600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2009,1,30]],"date-time":"2009-01-30T00:00:00Z","timestamp":1233273600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Digestion"],"abstract":"<jats:p>Serum retinol and serum carotene concentrations were determined over a 6-month period in 137 outpatients with Crohn\u2019s disease. Serum retinol measurements were within the reference range for all patients at each assessment period, while serum carotene levels were low in about one quarter of the patients. Of the 56 patients who completed 48-hour stool collections, 41 % had stool fat values exceeding the reference value. Serum retinol concentrations were not significantly correlated with the serum carotene concentrations, with the 48-hour stool fat content, or with the Crohn\u2019s disease activity. In contrast serum retinol concentrations were correlated with the dietary levels of vitamin A. Serum carotene concentrations were inversely correlated with the stool fat content but were not related to Crohn\u2019s disease activity or dietary levels of carotene or total vitamin A. Thus: serum retinol concentrations were normal in this moderately large group of patients with Crohn\u2019s disease and did not reflect a low dietary vitamin A intake by 34% of the population; serum carotene levels were frequently low in patients with Crohn\u2019s disease, possibly due to the presence of steatorrhea, but were not related to low dietary intakes of carotene or to active Crohn\u2019s disease, and (3) a low serum level of carotene does not indicate that the patient is at risk of developing vitamin A deficiency.<\/jats:p>","DOI":"10.1159\/000199495","type":"journal-article","created":{"date-parts":[[2009,1,31]],"date-time":"2009-01-31T12:11:36Z","timestamp":1233403896000},"page":"166-170","source":"Crossref","is-referenced-by-count":16,"title":["Vitamin A Status in 137 Patients with Crohn\u2019s Disease"],"prefix":"10.1159","author":[{"given":"S.","family":"Imes","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B.","family":"Pinchbeck","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Dinwoodie","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K.","family":"Walker","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.B.R.","family":"Thomson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2009,1,30]]},"container-title":["Digestion"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/199495","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/karger.com\/article-pdf\/doi\/10.1159\/000199495","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T08:21:35Z","timestamp":1777537295000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000199495"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,1,30]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1159\/000199495","archive":["Portico"],"relation":{},"ISSN":["0012-2823","1421-9867"],"issn-type":[{"value":"0012-2823","type":"print"},{"value":"1421-9867","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,1,30]]}}}