Ucwaningo oluningi lubonise ukuthi itiye inezinzuzo eziningi zezempilo eduze kwamanzi, itiye yisiphuzo sesibili esisetshenziswa kakhulu emhlabeni. Ucwaningo oluningi lubonise ukuthi itiye inezinzuzo eziningi zezempilo - kubandakanya nokuba nethonya elihle emazingeni akho e-cholesterol.
Izinhlobo Zezinhlobo Ezihlukene
I-tea itholakala esitshalweni seCamellia sinensis futhi ihlukaniswa ngezigaba ezintathu ezinkulu:
- Itiye elihlaza
- Itiye le-Oolong
- Itiye elimnyama
Kulezi zinhlobo zetiye, itiye elihlaza liyaziwa kakhulu, ngoba lisetshenziselwa imithi yasendulo ukuphulukisa izifo ezifana nokuphaphaza nokuphazamiseka kokugaya.
Ithi elihlaza lihlukile kwezinye izinhlobo zetiye ngoba liye lacutshungulwa kancane. Njengoba ingenawo inqubo eningi yokuvutshelwa njengamanye ama-teas, eziningi ze-antioxidants zayo, ikakhulukazi ama-catenins, zilondolozwe. Umsebenzi we-antioxidant of catenins uye waziwa ngezinzuzo ezihlukahlukene zezempilo, kuhlanganise nokuvimbela umdlavuza, ukugqugquzela impilo yomlomo, ukunciphisa isifo samathambo , kanye nomsebenzi we-antibacterial. Manje, itiye elihlaza liphinde lithole udumo lokunciphisa i-cholesterol.
Ithani Ngokuphumelelayo I-Green Green Ukunciphisa I-Cholesterol?
Iningi lezifundo ezibandakanya umphumela we-cholesterol-ukwehlisa itiye oluhlaza kuhilela ukusetshenziswa kwesithako esisebenzayo setiyi eluhlaza, ukukhishwa kwe-catenin, ngokuphambene nesiphuzo ngokwayo.
Indlela ithoni ehlisa ngayo i-cholesterol ingaziwa kakhulu, kodwa kubonakala sengathi:
- Ukwandisa umsebenzi we-receptor we-LDL esibindi
- Vimbela ukumuncwa kwe-cholesterol emathunjini
- I-cholesterol engaphansi ye- LDL
- Ukwandisa i- cholesterol ye- HDL
- I-cholesterol yenani eliphansi
Ucwaningo olulodwa luhlolisise umphumela wokuncipha kwe-cholesterol we-375 mg we-catenin okhishwe ngamadoda angama-200 nabesifazane abane-cholesterol ephakeme ekudleni okunamafutha aphansi.
Abacwaningi bathole ukuthi i-catenin ikhuphule i-cholesterol ingqikithi ngamaphesenti angu-11.3, i-LDL cholesterol ngamaphesenti angu-16,4, i-triglycerides ngamaphesenti angu-3.5, futhi ikhulise i-HDL ngamaphesenti angu-2.3. Ukukhishwa kwe-catenin esetshenziswe kulolu cwaningo, kodwa, kwakungahlanzekile futhi kwakune-75 mg yama -afaflavini (i-antioxidant etholakalayo kuma-black teas), i-150 mg yetiza eziluhlaza, kanye no-150 mg wezinye i-tea polyphenols. Ngakho-ke, kuphela ingxenye encane ye-catenin ekhishwe itekisi eluhlaza esetshenziswe kulolu cwaningo. Ukwengeza, lolu cwaningo lubonisa ukuthi kuzodingeka uphuze isamba esikhulu setiyi eluhlaza ukwehlisa i-cholesterol bese uthola imiphumela ebonwe kulolu cwaningo.
Ezinye izifundo zibonise ukukhishwa kwe-catenin ekhishwe itiye elihlaza ukuze kunciphise izinga lama-cholesterol lama-LDL ngamaphesenti angu-60 no-80% ngokulandelana. Noma kunjalo, iningi lalezi zifundo ziyahlukahluka emkhatsini we-catenin ekhishwe esetshenziswayo kanye nesimo sabahlanganyeli. Naphezu kwale miphumela ethembisayo, ezinye izifundo azikwazanga ukubhala imiphumela ye-cholesterol ehlisa itiye elihlaza. Ngokwesibonelo, ucwaningo lwamuva luphelile ukuthi u-3.8 g we-catenin akhiphe (kuze kube yizingcezu ezingu-18 ngosuku itiye eliluhlaza) noma izindebe eziyisithupha zetiyi eluhlaza azizange zisebenze ekunciphiseni i-cholesterol.
Nokho, bonke abahlanganyeli ocwaningweni babebhema. Ngakho, lo mphumela ungahunyushwa ngezindlela ezimbili. Okokuqala, lokhu kungase kusiphakamise ukuthi ukubhema ngandlela-thile kuphazamisa ikhono lokunciphisa i-cholesterol yama-catenins athola itiye elihlaza. Okwesibili, le miphumela ingase ikhombise ukuthi ama-catenen ahlaza aluhlaza ekunciphiseni i-cholesterol, ngaleyo ndlela iphikisana nezinye izifundo eziye zaphakamisa ukuthi itiye elihlaza liyakwenza i-cholesterol ephansi. Kuleli qophelo, abacwaningi abazi impendulo yombuzo wokuthi ngabe itiye eliluhlaza lingenayo i-cholesterol encane. Ucwaningo olungaphezulu luzodingeka luqhutshwe ukuze luqhubeke uphenyo lo mbuzo.
Ngo-2006, isikhalazo sabekwa i-FDA ngezinyosi eziluhlaza ukuze zibheke isimangalo sezempilo ukuthi zanciphisa isifo senhliziyo. Kodwa-ke, i-Food and Drug Administration yaphika lesi sicelo, sicacise ukuthi ubufakazi obudingekayo ukuze kuqinisekiswe lesi simangalo.
Ngokufingqiwe, ukuhlolwa kwamanje okwenziwe ngetayisi eluhlaza kanye nekhono layo lokunciphisa i-cholesterol liphikisana futhi akuzange kwenziwe ukucwaninga okwanele okuzovumela othile ukuthi ukuthi itiye elihlaza linciphisa i-cholesterol.
Ingabe Ukuphuza Amanye Uhlobo Lethi Futhi I-Lower Cholesterol?
Ngokomcwaningi wamanje, ama-oolong nama-black teas angase abe nomphumela wokunciphisa i-cholesterol ngenxa yobukhona be-anti-oxidant-type anti-catenin ngaphakathi kwetiye. Kodwa-ke, kwezinye izifundo, lezi teas azibonakali ukusebenza kanye netiye eluhlaza. Lokhu kungenzeka ngenxa yokuthi lezi teas zithola inqubo eningi yokuvutshelwa kunama tea aluhlaza.
> Imithombo:
> I-CA ye-Bursill, M Abbey, i-PD Roach. I-Green Green ikhuphula i-Cholesterol ye-Plasma Cholesterol ngokuvimbela ukwakhiwa kwe-cholesterol nokususa i-LDL Receptor kwi-Cholesterol-Fed Rabbit. I-aestrosclerosis. 2006 Sep 11.
> Cabrera C, R Artacho, R Gimenez. Imiphumela emihle yeTiye elihlaza-Ukubuyekeza. J Am Coll Nutriti. 2006 Apr; 25 (2): 79-99.
> Cooper R, DJ Moore, uDM Moore. Izinzuzo zokwelapha zeTiye elihlaza: Ingxenye I. Ukubuyekezwa kweziNzuzo zezeNhlalakahle. J Altern Supplement Med. 2005 Jun; 11 (3): 521-8.
> Koo SI, SK Noh. I-Green Green njenge-Inhibitor ye-Acids Absorption of Lipids: Inqubo Ebonakalayo Yomphumela Wayo Wokunciphisa I-Lipid. I-J Nutr Biochem. 2007 Mar; 18 (3): 179-83.
> Maron DJ, GP Lui, NS Cai, et al. Umphumela wokunciphisa i-Cholesterol ye-Tea Green Green eyakhiwe: I-Trial Controled Trial. I-Arch Intern Med. 2003 Jun 23; 163 (12): 1448-53.
> Princen MGH, W van Duyvenvoorde, R Buytenhek, et al. Ayikho Impumelelo Yokusetshenziswa kweTiye Ebomvu Neyomnyama ku-Plasma Lipid namazinga we-Antioxidant naku-LDL Oxidation ku-Smokers. I-arteriosclerosis, i-Thrombosis, ne-Vascular Biology. 1998; 18: 833-841.