{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T06:18:42Z","timestamp":1787897922998,"version":"build-2784847793"},"reference-count":53,"publisher":"Wiley","issue":"16","license":[{"start":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T00:00:00Z","timestamp":1787011200000},"content-version":"vor","delay-in-days":17,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001407","name":"Department of Biotechnology, Ministry of Science and Technology, India","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001407","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Molecular Nutrition Food Res"],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Vitamin D (VD) deficiency is prevalent globally. To improve dietary recommendations for food fortification, we used male rats fed with diets depleted of VD or supplemented\/rehabilitated with either vitamin D2 or vitamin D3 or combination, and compared their impact on calcium homeostasis, skeletal muscle and heart. Body composition was assessed by DEXA, muscle strength by grip test. Serum calcium, parathyroid hormone and 25\u2010hydroxyvitamin D [25(OH)D] were measured using standard methods. Skeletal muscle and left ventricle were used for histopathology; RNA and protein were extracted for analysis of gene expression and enzymatic activity, respectively. 25\u2010hydroxylated form of D3 was significantly higher than that of D2 in serum. D2 was less efficacious than D3 at improving skeletal muscle fiber size, strength, expression of contractility genes [\n                    <jats:italic>Myh2, Tnnc1<\/jats:italic>\n                    ] and metabolic enzymes [\n                    <jats:italic>Cs, \u03b2\u2010Had<\/jats:italic>\n                    ]. Under maintenance cardiac contractility gene expression [\n                    <jats:italic>Myh7 &amp; Serca2a<\/jats:italic>\n                    ] was comparable between the D2 and D3 groups, though 400 IU D2 notably suppressed\n                    <jats:italic>Serca2<\/jats:italic>\n                    expression. Post\u2010rehabilitation, the 2000 IU D3 group demonstrated significant improvement in these genes. Overall, our study demonstrates similar efficacy of D2 and D3 at regulating calcium homeostasis, but a better efficacy of D3 than D2 on structure, function and energy metabolism of skeletal muscle and heart.\n                  <\/jats:p>","DOI":"10.1002\/mnfr.70588","type":"journal-article","created":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T06:31:18Z","timestamp":1787121078000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Dietary Vitamin D2 Is Less Potent Than Vitamin D3 at Maintaining or Restoring Structure and Metabolism of Skeletal Muscle and Heart in Male Rats"],"prefix":"10.1002","volume":"70","author":[{"given":"Soumam","family":"Dutta","sequence":"first","affiliation":[{"name":"Department of Endocrinology ICMR\u2010National Institute of Nutrition  Hyderabad India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Athira","family":"Anilkumar S","sequence":"additional","affiliation":[{"name":"Department of Endocrinology ICMR\u2010National Institute of Nutrition  Hyderabad India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohd","family":"Urooj","sequence":"additional","affiliation":[{"name":"Department of Pharmacology &amp; Toxicology CCRUM\u2010National Research Institute of Unani Medicine For Skin Disorders  Hyderabad India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ayesha","family":"Ismail","sequence":"additional","affiliation":[{"name":"Department of Endocrinology ICMR\u2010National Institute of Nutrition  Hyderabad India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,18]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.chembiol.2013.12.016"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1210\/edrv\u20103\u20104\u2010331"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/nyas.13219"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.RES.0000025269.60668.0F"},{"key":"e_1_2_11_6_1","doi-asserted-by":"publisher","DOI":"10.1210\/endo\u2010113\u20106\u20101950"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcb.10605"},{"key":"e_1_2_11_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/mnfr.201900109"},{"key":"e_1_2_11_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.lfs.2024.123062"},{"key":"e_1_2_11_10_1","doi-asserted-by":"publisher","DOI":"10.1038\/ki.2010.17"},{"key":"e_1_2_11_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jsbmb.2025.106734"},{"key":"e_1_2_11_12_1","volume-title":"Endotext","author":"Bikle D. 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