Dab tsi yog lub cev ua haujlwm ntawm vitamin A?
1. Ua kom pom kev ua haujlwm ib txwm muaj: Lub photoreceptor rhodopsin ntawm lub retina yog tsim los ntawm kev sib xyaw ua ke ntawmvitamin Athiab opsin. Nws muaj lub luag haujlwm ntawm kev hnov lub teeb qis, tso cai rau tib neeg pom cov khoom kom pom tseeb txawm nyob hauv qhov tsaus ntuj. Thaum cov vitamin A tsis txaus, cov synthesis ntawm rhodopsin tsis txaus, qhov rhiab heev rau lub teeb tsis muaj zog yog txo, thiab lub sijhawm hloov mus rau qhov tsaus ntuj, ua rau tsis pom kev hauv qhov tsaus ntuj, thiab hmo ntuj qhov muag tsis pom kev tuaj yeem tshwm sim hauv cov xwm txheej hnyav.
2. Ua kom muaj kev ncaj ncees ntawm cov ntaub so ntswg epithelial: Vitamin A yog cov cab kuj ntawm oligosaccharides xav tau rau kev tsim glycoprotein. Glycoproteins koom nrog hauv kev tsim ib txwm ntawm cov hlwb epithelial thiab mucus secretion, yog li vitamin A yog ib qho tseem ceeb hauv kev tswj lub cev kev ncaj ncees ntawm cov hlwb epithelial.
3. Txhawb kev loj hlob thiab kev loj hlob: Vitamin A muaj cov tshuaj steroid hormones, uas tuaj yeem cuam tshuam rau kev sib txawv ntawm tes thiab txhawb kev loj hlob thiab kev loj hlob. Vitamin A tswj qhov sib npaug ntawm osteoblasts thiab osteoclasts los txhawb kev loj hlob ntawm cov pob txha.
4. Antioxidant thiab anticancer teebmeem: Vitamin A thiab -carotene tuaj yeem ntes cov dawb radicals, yog li lawv tuaj yeem ua lub luag haujlwm antioxidant hauv lub cev. Nyob rau hauv xyoo tas los no, kev tshawb fawb tau pom tias vitamin A los yog nws cov derivatives muaj cov nyhuv inhibiting mob cancer.
5. Ua kom lub cev tsis muaj zog: Vitamin A tsis txaus yuav cuam tshuam rau kev tsim cov tshuaj tiv thaiv, ua rau lub cev tsis muaj zog.
Dab tsi yog vitamin A deficiency?
Ø Cov tsos mob ntawm qhov muag: vitamin A tsis txaus thawj zaug tshwm sim hauv lub qhov muag, thiab muaj peb yam tseem ceeb: Hmo tsis pom kev; Qhov muag qhuav Syndrome thiab Corneal softening.
Ø Cov tsos mob ntawm daim tawv nqaij: Thaum tsis muaj vitamin A, hyperkeratotic follicular papules tshwm sim vim keratinization ntawm follicular epithelium. Lawv tshwm sim thawj zaug ntawm tus ncej puab thiab sab nraub qaum ntawm caj npab, thiab tom qab ntawd txuas mus rau sab sauv thiab sab qis, lub xub pwg nyom, thiab lub plab mog. Lub hauv siab, nraub qaum thiab pob tw tsis tshua cuam tshuam. Vim qhov txo qis ntawm cov qog sebaceous, daim tawv nqaij qhuav thiab wrinkled, zoo ib yam li cov tawv nqaij toad, tseem hu ua toad tawv nqaij kab mob.
HSF Biotech muab cov khoom zooVitamin A Acetate hmoovthiab vitamin A Palmitate Powder, ntseeg tias kev tsim kho tshiab pab lub neej zoo dua.