{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T19:52:08Z","timestamp":1792093928158,"version":"4.4.0"},"reference-count":45,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2017,9,8]],"date-time":"2017-09-08T00:00:00Z","timestamp":1504828800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>The aim of this study was to compare the nutritional status of vitamin A per trimester of pregnancy, as well as to assess its influence on pre-pregnancy BMI, total gestational weight gain (TGWG) and presence of anemia in women who had previously undergone Roux-en-Y gastric bypass (RYGB). An analytical, longitudinal and retrospective study comprising 30 pregnant women who had previously undergone RYGB was undertaken. In all trimesters of pregnancy, the serum concentrations of retinol, \u03b2-carotene, stages of vitamin A deficiency (VAD), night blindness (NB), anemia and anthropometric variables were assessed. VAD in pregnancy affected 90% of women, 86.7% developed NB and 82.8% had mild VAD. TGWG above\/below the recommended range was related to the low serum concentrations of \u03b2-carotene (p = 0.045) in the second trimester and women with TGWG above the recommended range showed 100% of inadequacy of this nutrient in the third trimester. Among the pregnant women with anemia, 90.9% had VAD and 86.4% had NB. This study highlights the importance of monitoring the nutritional status of vitamin A in prenatal care, due to its relationship with TGWG and the high percentage of VAD and NB found since the beginning of pregnancy. It also reaffirms the use of the cut-off &lt;1.05 \u03bcmol\/L for determining VAD.<\/jats:p>","DOI":"10.3390\/nu9090989","type":"journal-article","created":{"date-parts":[[2017,9,11]],"date-time":"2017-09-11T02:01:30Z","timestamp":1505095290000},"page":"989","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Relationship between the Nutritional Status of Vitamin A per Trimester of Pregnancy with Maternal Anthropometry and Anemia after Roux-en-Y Gastric Bypass"],"prefix":"10.3390","volume":"9","author":[{"given":"Sabrina","family":"Cruz","sequence":"first","affiliation":[{"name":"School of Medicine, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21.941-902, Brazil"},{"name":"Center for Research on Micronutrients (NPqM), Institute of Nutrition Josu\u00e9 de Castro of UFRJ, Rio de Janeiro 21.941-902, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andr\u00e9a","family":"Matos","sequence":"additional","affiliation":[{"name":"School of Medicine, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21.941-902, Brazil"},{"name":"Center for Research on Micronutrients (NPqM), Institute of Nutrition Josu\u00e9 de Castro of UFRJ, Rio de Janeiro 21.941-902, Brazil"},{"name":"Fluminense Federal University (UFF), Rio de Janeiro 24.020-150, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suelem","family":"Da Cruz","sequence":"additional","affiliation":[{"name":"School of Medicine, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21.941-902, Brazil"},{"name":"Center for Research on Micronutrients (NPqM), Institute of Nutrition Josu\u00e9 de Castro of UFRJ, Rio de Janeiro 21.941-902, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Silvia","family":"Pereira","sequence":"additional","affiliation":[{"name":"School of Medicine, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21.941-902, Brazil"},{"name":"Center for Research on Micronutrients (NPqM), Institute of Nutrition Josu\u00e9 de Castro of UFRJ, Rio de Janeiro 21.941-902, Brazil"},{"name":"Multidisciplinary Center for Bariatric and Metabolic Surgery, Rio de Janeiro 22280-020, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlos","family":"Saboya","sequence":"additional","affiliation":[{"name":"Center for Research on Micronutrients (NPqM), Institute of Nutrition Josu\u00e9 de Castro of UFRJ, Rio de Janeiro 21.941-902, Brazil"},{"name":"Multidisciplinary Center for Bariatric and Metabolic Surgery, Rio de Janeiro 22280-020, Brazil"},{"name":"Escola Paulista de Medicina, Federal University of S\u00e3o Paulo (UNIFESP), S\u00e3o Paulo 04.021-001, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andr\u00e9a","family":"Ramalho","sequence":"additional","affiliation":[{"name":"Center for Research on Micronutrients (NPqM), Institute of Nutrition Josu\u00e9 de Castro of UFRJ, Rio de Janeiro 21.941-902, Brazil"},{"name":"Funda\u00e7\u00e3o Oswaldo Cruz (ENSP\/FIOCRUZ), Rio de Janeiro 21040-900, Brazil"},{"name":"Department of Social and Applied Nutrition of the Institute of Nutrition, UFRJ, Rio de Janeiro 21.941-902, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2017,9,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"436","DOI":"10.1007\/s11695-014-1387-7","article-title":"Maternal and perinatal outcomes after bariatric surgery: A Spanish multicenter study","volume":"25","author":"Rubio","year":"2015","journal-title":"Obes. 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