Iiphytosterols, ezaziwa nangokuthi i-plant sterols, ziye zafumana ingqwalasela eninzi ngenxa yeenzuzo zabo zentliziyo. Ngokuqhelekileyo kufumaneka ekudleni kwendalo, njengamantongomane, iziqhamo, kunye nemifuno, ii-phytosterols nazo ziyafumaneka kwifom eyongezelelweyo kwivenkile yakho yezempilo okanye i-pharmacy.
Izifundo ziye zafumanisa ukuba ukusetyenziswa kwansuku zonke naphakathi kwama-1.6 kunye no-3 amagremu ama-phytosterol kunokunciphisa i-cholesterol yakho ye-LDL naphi na phakathi kwe-4 no-15%.
Nangona kunjalo, i-cholesterol ye-HDL kunye ne- triglycerides ayibonakali ichatshazelwa kakhulu yi-phytosterol. Nangona indlela i-LDL ye-cholesterol eyancitshiswa yi-phytosterol ayikwazi ngokupheleleyo, kukho iiphando ezithile eziye zahlola indlela i-phytosterols inokuchaphazela ngayo i-LDL ye-cholesterol.
Indlela yokuNciphisa iLDL ayiyinqambi
Ngokuqhelekileyo, i-cholesterol-kokubili kokutya kunye nesibindi-ifakwa kwisisu esincinci kwaye ijikeleza kwigazi.
Iiphytosterols, ezinesakhiwo esifanayo kwiamoleklile ye-cholesterol, zixutywa emancinini amancinane. Ngoko ke, ii-phytosterols azingena kwigazi kwaye kunoko zixutywe. Ezinye iziphumo ziye zafumanisa ukuba ii-phytosterol ziyakwazi ukuyeka okanye ukunciphisa ukutsalwa kwe-cholesterol yokutya. Ezi zifundo zifumene iimleksi ezithile emathunjini amancinci anokuthi aguqulwe yi-phytosterol, njenge-adenosine triphosphate cassette ebopha umthuthi we-A1 (ABCA1).
Ezi molekyuli zinoxanduva lokunyusa ukwanda kwe-cholesterol emanzini. Ezinye iingcamango zibonisa ukuba ii-phytosterol zingathintela indlela i-cholesterol isetyenziswe ngayo umzimba. Ezi zifundo zibonise ukuba i-phytosterols inokunceda ukunciphisa inani le-cholesterol ye-VLDL, i-cholesterol ye-IDL kunye ne-LDL cholesterol eyenziwa esibindi.
Ngelishwa, ezi zifundo ziphikisana kwaye indlela eyenziwa ngayo iiprotosterol oku ayaziwa ngokupheleleyo.
Nangona uphando olongezelelweyo lufunekayo ukucacisa indlela iiprottosterol ezisebenza ngayo ekunciphiseni i-cholestol yakho ye-LDL, uphando lubonise ukuba kuquka ukutya okucebileyo kwe-phytosterol ekudleni kwakho nokunciphisa inani lamafutha azalisiweyo unokuncedisa ukunciphisa amanqanaba akho e-LDL. Nangona ukutya okuninzi okunempilo kuqukethe ii-phytosterols, kungenakho ukwanela ukuba uqaphele ngokupheleleyo i-cholesterol-ukuphuhlisa umphumo walo mzimba. Ngokomzekelo, nangona i-2 gram ye-phytosterol yansuku zonke iyadingeka ukuze ibone ukunciphisa i-cholesterol ye-LDL, kulinganiselwa ukuba umntu oqhelekileyo ufumana kuphela malunga ne-150 ukuya ku-350 mg yama-phytosterol kwansuku zonke. Izithako ezongezelelweyo zePhytosterol kunye nokutya ezinokuqiniswa ngama-phytosterol zinokukunceda ekwandiseni i-phytosterol intake.
> Imithombo:
> Calpe-Berdiel L, JC Escola-Gil, F Blanco-Vaca. Ukuqonda okutsha kwiimodeli zesityalo se-stterol kunye ne-stanols kwi-cholesterol metabolism: ukuhlaziywa. Atherosclerosis 2009; 203: 18-31
> Clifton P. Ukunciphisa i-cholesterol - ukuhlaziywa kwendima yezityalo zezityalo. Ugqirha wase-Aust Fam 2009; 38: 218-221.
> Malinowski JM, MM Gehret. Iiphytosterols ze-dyslipidemia. Ngaba iJ Health Syst Pharm 2010; 67: 1165-1173.