{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,4,8]],"date-time":"2025-04-08T04:26:20Z","timestamp":1744086380895,"version":"3.40.3"},"reference-count":38,"publisher":"Cambridge University Press (CUP)","issue":"10","license":[{"start":{"date-parts":[[2012,9,5]],"date-time":"2012-09-05T00:00:00Z","timestamp":1346803200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Br J Nutr"],"published-print":{"date-parts":[[2013,5,28]]},"abstract":"<jats:p>Vitamin A (VA) plays an important role in post-natal lung development and maturation. Previously, we have reported that a supplemental dose of VA combined with 10\u00a0% of all-<jats:italic>trans<\/jats:italic>-retinoic acid (VARA) synergistically increases retinol uptake and retinyl ester (RE) storage in neonatal rat lung, while up-regulating several retinoid homeostatic genes including lecithin:retinol acyltransferase (<jats:italic>LRAT<\/jats:italic>) and the retinol-binding protein receptor, stimulated by retinoic acid 6 (<jats:italic>STRA6<\/jats:italic>). However, whether inflammation has an impact on the expression of these genes and thus compromises the ability of VARA to increase lung RE content is not clear. Neonatal rats, 7- to 8-d-old, were treated with VARA either concurrently with lipopolysaccharide (LPS; Expt 1) or 12\u00a0h after LPS administration (Expt 2); in both studies, lung tissue was collected 6\u00a0h after VARA treatment, when RE formation is maximal. Inflammation was confirmed by increased<jats:italic>IL-6<\/jats:italic>and chemokine (C\u2013C motif) ligand 2 (<jats:italic>CCL2<\/jats:italic>) gene expression in lung at 6\u00a0h and C-reactive protein in plasma at 18\u00a0h. In both studies, LPS-induced inflammation only slightly reduced, but did not prevent the VARA-induced increase in lung RE. Quantitative RT-PCR showed that co-administration of LPS with VARA slightly attenuated the VARA-induced increase of LRAT mRNA, but not of STRA6 or cytochrome P450 26B1, the predominant RA hydroxylase in lung. By 18\u00a0h post-LPS, expression had subsided and none of these genes differed from the level in the control group. Overall, the present results suggest that retinoid homeostatic gene expression is reduced modestly, if at all, by acute LPS-induced inflammation and that VARA is still effective in increasing lung RE under conditions of moderate inflammation.<\/jats:p>","DOI":"10.1017\/s0007114512003790","type":"journal-article","created":{"date-parts":[[2012,9,5]],"date-time":"2012-09-05T13:37:29Z","timestamp":1346852249000},"page":"1739-1745","source":"Crossref","is-referenced-by-count":4,"title":["Inflammation induced by lipopolysaccharide does not prevent the vitamin A and retinoic acid-induced increase in retinyl ester formation in neonatal rat lungs"],"prefix":"10.1017","volume":"109","author":[{"given":"Lili","family":"Wu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A. 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