I-Vitamin A CAS: 68-26-8

I-vitamin A idlala indima ekuhlukaniseni iiseli, nto leyo ibalulekileyo ekuphuhlisweni nasekugcinweni kwezicubu ezifana nolusu, inkqubo yokuphefumla, kunye nomgudu wesisu. Ikwabandakanyeka ekubonakalisweni kwezakhi zofuzo kunye nokulawulwa kwazo. Imithombo ye-vitamin A ibandakanya isibindi, iioyile zesibindi sentlanzi, iimveliso zobisi, kunye nokutya okuqinisiweyo, kunye neziqhamo kunye nemifuno enemibala. Umsebenzi oyintloko we-Vitamin A kukuxhasa umbono, ngakumbi kwiimeko eziphantsi kokukhanya. Inceda ekugcineni impilo ye-cornea kunye nezinye izicubu zamehlo, kwaye ukungabikho kwayo kunokukhokelela ekungaboni ebusuku kwaye ekugqibeleni kube yimfama ngokupheleleyo. Ngaphezu koko, i-vitamin A ibalulekile ekusebenzeni kakuhle kwenkqubo yomzimba yokuzikhusela, njengoko ixhasa ukuthembeka kolusu kunye ne-mucous membranes, ezisebenza njengemiqobo yosulelo. Ngaphezu koko, i-vitamin A ibalulekile ekukhuleni okuqhelekileyo kunye nophuhliso, njengoko idlala indima ephambili ekuhlukaniseni iiseli kunye nokugcinwa kwezicubu ezinempilo, kubandakanya ulusu, inkqubo yokuphefumla, kunye nomgudu wesisu. Indima yayo ekubonakalisweni kwezakhi zofuzo kunye nokulawulwa kwazo ikwanegalelo kwimpilo iyonke. Kwabasetyhini abakhulelweyo, i-vitamin A ibalulekile ekuphuhlisweni kwe-fetus. Ngokubanzi, i-vitamin A ibalulekile ekuboneni, ekusebenzeni komzimba, nakwimpilo yeseli, okwenza ibe sisondlo esibalulekileyo kwimpilo-ntle iyonke. Nangona kunjalo, kubalulekile ukuyitya ngomlinganiselo ofanelekileyo, njengoko ukutya i-vitamin A ngokugqithisileyo kunokukhokelela kwityhefu nakwimiphumo emibi empilweni.