I-Niacin, noma i-vitamin B-3, iyigama elivamile elibhekisela ku-nicotinic acid kanye neziqephu zalo. Izinhlobo ezintathu eziyinhloko ze-niacin okwamanje ziyatholakala emakethe:
- i-nicotinic acid
- nicotinamide
- i-inositol hexaniacinate
Zonke lezi zinhlobo ze-niacin zitholakala ngaphezu kwe-counter ngokulinganisa okuhlukile, kungaba ngokwayo noma ku-multivitamin. I-nicotinic kuphela iyatholakala njengemithi kadokotela ngaphansi kwegama lezohwebo uNiaspan.
I-Nicotinic Acid
I-Nicotinic acid, noma i-vitamin B3, ifomu le- niacin eliye laboniswa ukuthi lithinte zonke izici zephrofayili ye-lipid, ukwehlisa i- cholestolol ye-LDL ngo-15% kuya ku-25%, ukunciphisa i- triglycerides ngo-20% kuya ku-50%, nokukhulisa i-cholesterol ye-HDL ngo-15 % kuya ku-30%.
Indlela okwenza ngayo lokhu ayaziwa. Kodwa-ke, izifundo zangaphambilini ziye zaphawula ukuthi i-nicotinic acid inciphisa inani le-LDL ne- VLDL cholesterol esenziwe isibindi.
Okuqhamuka uma udla imishanguzo
I-Nicotinic acid nayo ihlotshaniswa neminye imiphumela engathandekayo, njenge:
- ukuqhuma
- itching
- ushintsho egazini legazi
- ukucasula kwamathumbu
- ukushisa okushisayo
- i-palpitations
Lezi zithinta zibonakala zihambisana nomthamo futhi zinganciphisa uma uthatha ifomu elikhishwe isikhathi se-nicotinic acid. Lezi zimpawu ziyanyamalala ngaphezu kwesonto noma kunjalo, njengoba umzimba wakho ulungisa imithi. Noma kunjalo, izimpawu zingaba nzima kwezinye iziguli kuze kube yilapho beyeka ukuthatha le fomu ye-niacin.
Leli fomu le-niacin litholakala ngaphezu kwekhayithi futhi njengemithi kadokotela. Ukwengeza, i-nicotinic acid nayo itholakale emibhalweni embalwa. Emkhiqizo wokukhululwa ngokushesha, i-nicotinic acid isungulwa emzimbeni ngesikhathi esisodwa. Umkhiqizo okhulunywe ngokuqinile, noma kunjalo, usungula i-nicotinic acid emzimbeni kancane kancane ngomzamo wokunciphisa imiphumela emibi .
I-Nicotinamide ne-Inositol Hexaniacinate
I-Nicotinamide ne- inositol hexaniacinate yizinye izinhlobo ezimbili ezitholakala ezithengiswayo ze-niacin eziye zenzelwe ukunciphisa ukuqhuma nokushaywa okuhambisana ne-niacin, nokho namanje zigcina ikhono labo lokuncipha kwe-cholesterol.
Nakuba izifundo ezincane ezitholakala ngale mikhiqizo zibonisa ukuthi zinciphisa ukuqhuma okuhambisana ne-niacin, imiphumela yalezi zifundo nayo ixubene ngokukwazi kwabo ukwehlisa i-cholesterol.
Imithombo:
I-Third Report of the National Cholesterol Education Program (NCEP) Iphaneli Yomhloli Ekutholeni, Ukuhlola Nokuphathwa Kwegazi Eliphezulu le-Cholesterol ku-Adult (PDF) , July 2004, I-National Institutes of Heath: I-National Heart, Lung, ne-Blood Institute.
Norris RB. I-niacin engenamanzi: isengezo sokudla singase singabi nzuzo. Prev Cardiol. 2006; 9 (1): 64-65.