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Vitamin D

Kolékalsiférol (D3)

Vitamin D nyaéta sagorombol prohormon nu leyur-lemak, dua di antarana anu utama nyaéta vitamin D2 (atawa érgokalsiférol) jeung vitamin D3 (atawa kolékalsiférol)[1]. Istilah vitamin D ogé nujul ka sakur métabolit jeung analog ieu zat. Vitamin D3 dihasilkeun dina kulit nu kasorot panonpoé, hususna radiasi B ultrabungur.

Vitamin D gedé gunana dina ngokolakeun sistem organ[2]:

Kakurangan vitamin D bisa disababkeun ku (1) kurangna asupan nu dibarung ku kurang kasorot panonpoé, (2) cacad nu ngawates absorpsina, (3) kaayaan nu ngaganggu konversi vitamin D jadi métabolit aktif (kayaning cacad/gangguan ati atawa ginjal), atawa (4) sababaraha cacad turunan anu ahéng[2]. Balukarna, mineralisasi tulang jadi kaganggu, nu antukna ngaleuleuskeun tulang, rakhitis pikeun barudak atanapi ostéomalasia pikeun nu sawawa, sarta béh dituna kana ostéoporosis. Najan kitu, kasorot panonpoé ogé henteu salawasna hadé, sabab mun kaleuleuwihi bisa ngabalukarkeun kangker kulit.

  1. "Dietary Supplement Fact Sheet: Vitamin D". National Institutes of Health. Diarsipkan dari versi asli tanggal 2007-09-10. Diakses tanggal 2007-09-10.  Archived 2007-07-16 di Wayback Machine
  2. a b Vitamin D dina Merck Manual of Diagnosis and Therapy Professional Edition
  3. van den Berg H (January 1997). "Bioavailability of vitamin D". Eur. J. Clin. Nutr. 51 Sup. 1: S76–9. PMID 9023488. 
  4. Cranney A, Horsley T, O'Donnell S, et al. (Agustus 2007). "Effectiveness and safety of vitamin D in relation to bone health". Evid. Rep. Technol. Assess. (158): 1–235. PMID 18088161. 
  5. Price PA, Faus SA, Williamson MK (Pébruari 2000). "Warfarin-induced artery calcification is accelerated by growth and vitamin D". Arterioscler. Thromb. Vasc. Biol. 20 (2): 317–27. PMID 10669626. http://atvb.ahajournals.org/cgi/pmidlookup?view=long&pmid=10669626.  Archived 2012-07-07 di Archive.today
  6. Silver J, Russell J, Sherwood LM (Juni 1985). "Regulation by vitamin D metabolites of messenger ribonucleic acid for preproparathyroid hormone in isolated bovine parathyroid cells". Proc. Natl. Acad. Sci. U.S.A. 82 (12): 4270–3. PMC 397979. PMID 3858880. http://www.pnas.org/cgi/pmidlookup?view=long&pmid=3858880. 
  7. Silver J, Naveh-Many T, Mayer H, Schmelzer HJ, Popovtzer MM (Nopémber 1986). "Regulation by vitamin D metabolites of parathyroid hormone gene transcription in vivo in the rat". J. Clin. Invest. 78 (5): 1296–301. doi:10.1172/JCI112714. PMC 423816. PMID 3771798. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=423816. 
  8. Salah ngutip: Tag <ref> tidak sah; tidak ditemukan teks untuk ref bernama SciAmNov2007

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Vitamien D AF فيتامين دي Arabic Vitamina D AST D vitamini AZ ویتامین د AZB Bitamina D BCL Вітамін D BE Витамин D Bulgarian विटामिन डी BH ভিটামিন ডি Bengali/Bangla

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