I-Cholesterol Yokudla Neengozi Zezinhliziyo
Siye sazwa amashumi eminyaka ukuthi izinga eliphakeme legazi le-cholesterol liyisici esibalulekile sengozini ye- atherosclerosis , ngakho-ke ukuhlaselwa kwenhliziyo nokushaya. Siphinde sazwa amashumi eminyaka ukuthi, ukuze sikwazi ukugcina amazinga e-cholesterol ethu phansi, kufanele sigweme ukudla okuphezulu kwe-cholesterol ekudleni kwethu. (Ngokuyinhloko, sitshelwa ukuthi ukudla amaqanda amaningi kakhulu kungasihle kithi.)
Kodwa ngoFebruwari 2015 baseMelika bezwa izindaba ezivusa amadlingozi ukuthi iKomidi Lezokuqondisa Iziqondiso Zikahulumeni livotele ukuqeda ukusikisela kwalo okude ukuthi sigweme ukudla okuphezulu kwe-cholesterol. Amaqanda (kanye nama-shrimp ne-lobster), manje avele, kukhona ukudla okunempilo futhi!
Yini iHeck eqhubekayo?
Lezi zindaba azizange zimangaze ngokuphelele kunoma ngubani olandele izincwadi zezokwelapha eminyakeni yamuva (noma empeleni, amashumi eminyaka amuva). Ngenxa yalokhu, lokhu akufanele kube kuhle kakhulu odokotela abaningi, ikakhulukazi izazi ze-cardiologists, okumele ziqonde okuthile nge-cholesterol metabolism.
Akukaze kube khona ubufakazi obunempilo obuvela emfundweni eyenziwe kahle ukuthi i-cholesterol yokudla iyandisa kakhulu ingozi yempilo. Izixwayiso ezimbi mayelana nokudla i-cholesterol zisekelwe ngokuyinhloko ezindabeni ezithintekayo.
Khona-ke, ngo-2013, ukuhlaziywa okukhulu kwe-meta kwanyatheliswa eBritish Medical Journal eyayibheke izifundo eziyisishiyagalombili zokuhlola ukwelashwa kwe-cholesterol yokudla kanye nemiphumela.
Phakathi kwabantu abangaba yingxenye isigamu-million ababhalisile, kwakungekho ukuhlangana phakathi kweqanda ukusetshenziswa kanye nengozi yokugula komzimba noma isifo sohlangothi . (Uma ngabe kukhona, umkhuba wawukhona kwenye indlela; kubambisana nokuzivikela nokudla kwamaqanda.) Lolu cwaningo lungase lungabi yinto yokugcina kulolu daba, kodwa yilokho ubufakazi obuhle kakhulu okufanele sibhekane nabo, kungenzeka ukuthi isikhathi eside.
Kuyi-meta-analysis, iningi elikholelwayo, ekugcineni lashukumisela ikomidi lokudla likahulumeni ukuthi ligcine ukushintsha izincomo zalo.
Lolu lwazi luhambisana nalokho esikuziyo mayelana ne-Cholesterol Metabolism
Siyazi iminyaka ukuthi ingozi yenhliziyo ihlotshaniswa ngqo namazinga e- LDL cholesterol . Kungase kusimangaze ukwazi (futhi, ukwesaba okunye, kungase kusimangaze odokotela abaningi ukuba bazi) ukuthi le cholesterol yokudla ayikho umphumela oqondile kwi-cholesterol ye-LDL.
Uma udla ukudla okuphakeme kwe-cholesterol, i-cholesterol eyitholwa emathunjini ihlanganiswe kuma- chylomicrons (hhayi ezinhlakeni ze-LDL), kanye nama-fatty acids ekudleni kwakho.
Ama-chylomicrons asekhishwa egazini, futhi alethe ama-acids acids osanda kudla kuma-tissue (imisipha namafutha). Izindleko ze-chylomicron - ezihlanganisa yonke into edlalwa yi-cholesterol yokudla - ithathwa esibindi sokucubungula. I-cholesterol ekudleni kwakho, ke-ke, ayihambiswanga ngqo kumathishu futhi ayihlanganiswa ngokuqondile ezinhlakeni ze-LDL.
Ngokujwayelekile, ama-chylomicrons asuswe ngokuphelele egazini elingakapheli ihora noma amabili emva kokudla. Lesi sizathu esisodwa ukuthi kufanele uzila ukudla uma unamazinga akho e- blood lipid kulinganiswa - akekho onentshisekelo ekulingeni i-cholesterol kuma-chylomicrons kusukela i-chylomicron-cholesterol engahlotshaniswa nenengozi yomzimba.
I-cholesterol yezinkukhu, empeleni, ingathinta amazinga e-LDL cholesterol, kodwa ngokungaqondile ngqo. Kungumsebenzi wesibindi ukwenza isamba "sokunene" se-cholesterol esekelwe izidingo zomzimba. (I-cholesterol ephathwe isibindi ilayishwa kuma- lipoprotein futhi ikhishwe emgodleni wegazi lapho ekugcineni iba yi-LDL cholesterol.) Ngakho-ke, uma udla okuningi kwe-cholesterol, isibindi kufanele sinciphise ukuhlanganiswa kwayo kwe-cholesterol - nokukhiqizwa kwayo I-cholesterol ye-LDL - ukukhokhela.
Ukuze uphinde uphinde uthi, i-cholesterol yokudla ayihambisani ngokuqondile nezicubu futhi ayihlanganiswa ngqo kwizinhlayiya ze-LDL.
Isibindi - leso sitho esilawulayo - siphambene phakathi kwe-cholesterol yokudla kanye ne-LDL cholesterol, futhi omunye wemisebenzi yayo ukulungisa ukukhiqizwa kwayo kwe-cholesterol ekuphenduleni ukudla kwakho, ukuze ugcine amazinga e-LDL ama-cholesterol kolunye uhlobo olujwayelekile.
Ngakho-ke, akufanele kusimangaze kakhulu odokotela abalandela izincwadi zezokwelapha, futhi abaqonda ukuthi imithi ye-cholesterol isetshenziswe kanjani, ukuze bafunde ukuthi i-cholesterol yokudla ayinayo indima enkulu ekunqumeni ingozi yenhliziyo.
Okubalulekile
Thina abathandi beqanda bangathanda ukwamukela iphaneli lokudla likahulumeni ekhulwini lama-21.
> Sour ces:
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U-Hegsted DM, u-Ausman LM, uJohnson JA, uDallal GE. Amafutha e-diet and serum lipids: ukuhlolwa kwedatha yokuhlola. I-Am J Clin Nutr 1993; 57: 875.
Rong Y, Chen L, Zhu T, et al. Ukusetshenziswa kwamagciwane kanye nobungozi bokugula kwesifo senhliziyo kanye nesifo sohlangothi: isilinganiso-impendulo-mphenduquko-meta-ukuhlaziywa kwezifundo ezizobe zikhona. BMJ 2013; 346: e8539.