I-Niacin, okanye i-vitamin B-3, lixesha eliqhelekileyo elibhekisela kwi-nicotinic acid kunye neziphumo zalo. Iintlobo ezintathu eziyinhloko ze-niacin zikhoyo ngoku kwiimarike:
- nicotinic acid
- nicotinamide
- inositol hexaniacinate
Zonke ezi ntlobo ze-niacin ziyafumaneka kwi-counter kwiimilinganiselo ezahlukeneyo, mhlawumbi ngokwazo okanye kwi-multivitamin. Kuphela i-nicotinic acid ifumaneka njengomyalelo phantsi kwegama le-Niaspan.
Acotic acid
I-Nicotinic acid, okanye i-vitamin B3, uhlobo lwe- niacin oluye lwaboniswa ukuba luchaphazele zonke iinkalo zeprofayili yepilid, ukunciphisa i- cholesterol ye-LDL nge-15% ukuya kwi-25%, ukunciphisa i- triglycerides ngo-20% ukuya kwi-50%, nokuphakamisa i- cholesterol ye-HDL ngo-15 % ukuya ku-30%.
Indlela eyenzayo oku ingaziwa. Nangona kunjalo, uphando lwangaphambili luye lwaphawula ukuba i-nicotinic acid iyanciphisa inani le-LDL ne- VLDL ye-cholesterol eyenziwa sisibindi.
Imiphumela
I-Nicotinic acid idibaniswa nezinye iziphumo ezingathandekiyo, ezifana:
- ukuxhamla
- kubetha
- utshintsho kwi-glucose yegazi
- ukunyanyiswa kwamathumbu
- kushushu
- iipilpitations
Ezi ziphumo zecala zibonakala zihambelana nomlinganiselo wesilinganiso kwaye zinokuncitshiswa ukuba uthatha ifom ye-nicotinic acid. Lezi zimpawu ziyabonakala ngaphezu kweveki okanye kunjalo, njengoko umzimba wakho ulungelelanisa kumachiza. Nangona kunjalo, iimpawu zinokuba nzima kakhulu kwezinye izigulane ukuya kwinqanaba lokuba bayeka ukuthatha le fomu ye-niacin.
Le fomu ye-niacin ifumaneka kwi-counter kunye ne-odokotela. Ukongezelela, i-nicotinic acid iyatholakala nakwimibutho emibini. Kwimveliso ekhutshwa ngokukhawuleza, i-nicotinic acid ifakwe emzimbeni ngexesha elinye. Kodwa umkhiqizo okhululwayo, kodwa, uzisa i-nicotinic acid emzimbeni ngokuthe ngcembe kwimizamo yokunciphisa imiphumo emibi .
Nicotinamide kunye ne-Inositol Hexaniacinate
I-Nicotinamide kunye ne- inositol hexaniacinate nezinye iindidi ezimbini ezikhoyo zorhwebo ezikhoyo eziye zenzelwe ukunciphisa ukutshiza nokutshaya okuhambisana ne-niacin, kodwa kusekho ukugcina amandla abo okunciphisa i-cholesterol.
Nangona izifundo ezincinci ezikhoyo malunga nale mveliso zibonisa ukuba zinciphisa ukuhluthwa ezinxulumene ne-niacin, iziphumo zezi zifundo zixutywe malunga nokukwazi ukunciphisa i-cholesterol.
Imithombo:
Ingxelo yesithathu yeNkqubo yeMfundo yeSizwe ye-Cholesterol (NCEP) Iqela leNzululwazi ekuFundeni, kuVavanyo kunye nokuPhathwa kwe-Blood High Cholesterol kwi-Adult (PDF) , ngoJulayi 2004, iiNational Institutes of Heath: iNational Heart, Lung, ne-Blood Institute.
Norris RB. I-niacin engenamaphunga: isongezelelo sesondlo sinokungenelwa inzuzo. Phambi kweCardiol. 2006; 9 (1): 64-65.