Vitamin D2 vs Vitamin D3
Vitamin D yog steroid pro hormone. Nws yog sawv cev los ntawm cov tshuaj steroids uas tshwm sim hauv cov tsiaj, nroj tsuag thiab cov poov xab. Los ntawm ntau yam kev hloov pauv hauv lub cev lawv ua rau cov tshuaj hormones hu ua calcitriol, uas ua lub luag haujlwm tseem ceeb hauv calcium thiab phosphate metabolism. Ergosterol tshwm sim hauv cov nroj tsuag thiab 7-dehydrocholesterol hauv cov tsiaj. Ergosterol txawv ntawm 7-dehydrocholesterol tsuas yog nyob rau hauv nws cov saw sab, uas yog unsaturated thiab muaj ib pab pawg neeg methyl ntxiv. Ultraviolet irradiation cleaves B nplhaib ntawm ob lub tebchaw. Ergocalciferol (vitamin D2) tuaj yeem ua lag luam los ntawm cov nroj tsuag hauv txoj kev no thaum cov tsiaj cholecalciferol (Vitamin D3) yog tsim los ntawm 7-dehydrocholesterol ua ntej hauv cov roj cholesterol bio synthesis) hauv cov tawv nqaij raug. Cov vitamin D2 thiab vitamin D3 yog cov muaj zog sib npaug.
Vitamin D2
Vitamin D2 yog tsim los ntawm ergosterol hauv cov nroj tsuag thaum raug tshav ntuj. Xyoo 1920 Vitamin D2 tau tsim tawm hauv kev lag luam los ntawm kev raug cov khoom noj rau ultraviolet rays. Ergosterol txawv ntawm 7-dehydrocholesterol tsuas yog nyob rau hauv nws cov saw sab, uas yog unsaturated thiab muaj ib pab pawg neeg methyl ntxiv. Ultraviolet irradiation cleaves B nplhaib ntawm ergocalciferol.
Vitamin D3
Vitamin D3 yog tsim los ntawm 7-dehydrocholesterol los ntawm kev ua ntawm tshav ntuj thiab kev noj haus vitamin D3 tom qab nqus los ntawm miscelles hauv cov hnyuv ua raws li kev thauj hauv cov lymphatics ncig hauv cov ntshav khi rau ib qho globulin, Vitamin D-binding protein.. Vitamin D3 yog nqa los ntawm lub siab, qhov twg nws yog hydroxylated ntawm 25 txoj hauj lwm los ntawm Vitamin D3- 25- hydroxylase, ib qho enzyme ntawm endoplasmic reticulum.25- hydroxyvitamin D3 yog daim ntawv loj ntawm cov vitamin nyob rau hauv kev ncig thiab khaws cia hauv daim ntawv. daim siab. Lub luag haujlwm tseem ceeb ntawm Vitamin D yog tswj cov qib calcium thiab phosphorous hauv cov ntshav. Nws yog ib qho tseem ceeb kom muaj cov pob txha muaj zog thiab ntev. Nws kuj tau pom tias pab tiv thaiv kev mob pob txha, kub siab, mob qog noj ntshav thiab ntau yam kab mob autoimmune.
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Sib piv: Vitamins D2 thiab vitamin D3 • Vitamin D2 yog tsim nyob rau hauv cov nroj tsuag whereas Vitamin D3 yog tsim nyob rau hauv cov tsiaj los ntawm raug tshav ntuj. • Vitamin D2 yog tsim los ntawm ergosterol los ntawm kev ua ntawm tshav ntuj whereas Vitamin D3 yog tsim los ntawm 7-dehydrocholesterol los ntawm kev ua ntawm tshav ntuj. • Vitamin D2 yog tsim nyob rau hauv cov khoom noj los ntawm raug tshav ntuj whereas Vitamin D3 yog tsim los ntawm raug ntawm daim tawv nqaij mus rau tshav ntuj. • Ergosterol txawv ntawm 7-dehydrocholesterol nkaus xwb nyob rau hauv nws sab saw, uas yog unsaturated thiab muaj ib tug ntxiv methyl pawg • Vitamin D2 muaj lub neej txee luv dua thaum piv rau Vitamin D3. Qhov no tej zaum yuav yog vim li cas rau nws cov kev ua tau zoo kom tsawg dua li ntawm Vitamin D3. |
Summary
Deficiency ntawm vitamin tuaj yeem ua rau Rickets thiab Osteomalacia uas yog hom pob txha deformity. Cov neeg uas muaj kev pheej hmoo ntawm vitamin D tsis txaus yuav tsum noj cov vitamins D nplua nuj los yog noj nws ntxiv vim nws qhov tsis txaus tuaj yeem ua rau cov pob txha tsis muaj zog tshwj xeeb tshaj yog cov laus thiab cov neeg rog.
