I-Phytosterols, eyaziwa nangokuthi izitshalo ze-sterols, yithole ukunakwa okuningi ngenxa yenzuzo yabo enempilo enempilo. Ngokuvamile okutholakala ekudleni kwemvelo, njengamantongomane, izithelo, nemifino, ama-phytosterol angatholakala nangendlela ehambisanayo esitolo sakho sezempilo noma ekhemisi.
Izifundo zithole ukuthi ukusetshenziswa kwansuku zonke noma yikuphi phakathi kuka-1.6 no-3 amagremu ama-phytosterol kunganciphisa i-cholestolol yakho ye-LDL noma yikuphi phakathi kuka-4 no-15%.
Kodwa-ke, i-HDL ye-cholesterol ne- triglyceride ayibonakali iyathinteka kakhulu ekusetshenzisweni kwama-phytosterol. Nakuba indlela i-LDL ye-cholesterol incishiswa ngayo yi-phytosterol ayikwazi ngokuphelele, kuye kwaba nezifundo ezithile eziye zahlola indlela ama-phytosterols angathinta ngayo ama-LDL ama-cholesterol amazinga.
Indlela yokunciphisa i-LDL Ayilungile
Ngokuvamile, i-cholesterol-kokubili kokudla kwakho nesibindi-iyangena emathunjini amancane iphinde igxile egazini.
Ama-phytosterol, anesakhiwo esifanayo nama-molecules e-cholesterol, athathwa kancane emathunjini amancane. Ngakho-ke, i-phytosterols ayifaki egazini futhi esikhundleni salokho ixhunyiwe. Ezinye izifundo ziye zathola ukuthi ama-phytosterol angakwazi ukuyeka noma ukunciphisa ukumuncwa kwe-cholesterol yokudla. Lezi zifundo ziye zathola ama-molecule athile emathunjini amancane okungenzeka aguqulwe yi-phytosterol, njenge-adenosine triphosphate cassette ebopha umthuthi we-A1 (ABCA1).
Lezi zinhlayiya zithwala ukwanda kwe-cholesterol emanzini. Ezinye izifundo zisho ukuthi ama-phytosterol angathinta indlela i-cholesterol ehlanganiswa ngayo emzimbeni. Lezi zifundo zibonise ukuthi ama-phytosterol angasiza ekunciphiseni inani le-VLDL le-cholesterol, i-IDL ye-cholesterol ne-LDL cholesterol eyenziwa esibindi.
Ngeshwa, lezi zifundo ziphikisana futhi indlela ama-phytosterols enza ngayo awaziwa ngokugcwele.
Nakuba kudingeke ucwaningo olwengeziwe ukuze uthole ukuthi i-phytosterol isebenza kanjani ekunciphiseni i-LDL cholesterol yakho, ucwaningo luye lwabonisa ukuthi kuhlanganise nokudla okucebile kwe-phytosterol ekudleni kwakho nokunciphisa inani lamafutha aphelele odlayo kungasiza ekunciphiseni amazinga akho e-LDL. Nakuba izinhlobo eziningi zokudla okunempilo ziqukethe ama-phytosterol, kungenzeka ukuthi akwanele ukuqaphela ngokugcwele umphumela wokuncipha kwe-cholesterol walesi sakhi. Ngokwesibonelo, nakuba ama-gramu ama-2 e-phytosterol nsuku zonke adingekayo ukuze athole ukwehliswa okuncane kwe-cholestolol ye-LDL, kulinganiselwa ukuthi umuntu ovamile uthola kuphela u-150 kuya ku-350 mg wama-phytosterol nsuku zonke. Izithako eziqukethe i-Phytosterol kanye nokudla okuqiniswa ngama-phytosterol kungasiza ekukhuleni i-phytosterol.
> Imithombo:
> Calpe-Berdiel L, JC Escola-Gil, F Blanco-Vaca. Ukuqonda okusha emisebenzini yamangqamuzana yesitshalo sterol kanye ne-stanols e-cholesterol metabolism: ukubuyekezwa. I-antherosclerosis 2009; 203: 18-31
> Clifton P. Ukwehlisa i-cholesterol - ukubuyekezwa kwendima yezitshalo ze-sterols. I-Aust Fam Physician 2009; 38: 218-221.
> Malinowski JM, MM Gehret. Ama-phytosterols we-dyslipidemia. Am J Health Syst Pharm 2010; 67: 1165-1173.