I-Cholesterol yesidlo kunye neengozi zeCardiac
Siye sava emashumi eminyaka ukuba izinga eliphezulu legazi le-cholesterol yinto ebalulekileyo yengozi ye- atherosclerosis , kwaye ngoko ke ukuhlaselwa yintliziyo kunye nemivimbo. Siye sava emashumi eminyaka ukuba, ukuze sikwazi ukugcina amanqanaba ethu e-cholesterol phantsi, kufuneka sigweme ukutya okuphezulu kwe-cholesterol kwisidlo sethu. (Uninzi ngokuthe ngqo, siye saxelelwa ukuba ukutya amaqanda amaninzi kumbi.)
Kodwa ngoFebruwari 2015 amaMelika ava iindaba ezimangalisa ukuba iKomiti yeNgcebiso yeZilathisi zeZondlo zikaRhulumente ivotelwe ukuphelisa isincophiso sayo esilinde ukuba sigweme ukutya okuphezulu kwi-cholesterol. Amaqanda (kunye ne-shrimp kunye ne-lobster), ngoku ibonakala, kukutya okunempilo kwakhona!
Yintoni iHeck eqhubekayo?
Le ndaba yayingeyinto enqabileyo ngokupheleleyo kumntu oye walandela uncwadi lwezokwelapha kwiminyaka yamuva (okanye ngokwenene, kwiminyaka emva nje). Ngenxa yoko, oku akufanelekanga ngokugqithiseleyo ukugqithisa ukuba ugqirha abaninzi, ingakumbi i-cardiologists, abafanele baqonde okuthile malunga ne-cholesterol metabolism.
Akuzange kubekho ubungqina bokwenkcenkcesha obuvela kwizifundo eziqhutywe kakuhle ukuba i-cholesterol yokutya yandisa kakhulu ingozi yomzimba. Izilumkiso eziqinileyo malunga nokutya i-cholesterol ziye zisekelwe ngokubanzi kwiinkxalabo.
Emva koko, ngowama-2013, uhlalutyo oluphezulu lwe-meta lwapapashwa kwi- British Medical Journal eyayibheke uphando lwezifundo ezisibhozo ezihlalutya i-cholesterol yokutya kunye neziphumo.
Phakathi kwabaphantse abantu ababhalisile, kwakungekho nhlangano phakathi kokusetyenziswa kweqanda kunye nomngcipheko we- coronary disease or stroke . (Ukuba kukho nantoni na, umkhonto wawunezinye izikhokelo; kubambiswano olukhuselekileyo kunye nokutya kweqanda.) Isi sifundo asinakuba yinto yokugqibela kumcimbi, kodwa kubona ubungqina obunobulumko obufunekayo ukuba sibe nomhla, kungenzeka ukuba ube nexesha elide.
Yiyo le meta-analysis, ininzi ikholelwa, ekugqibeleni idlulise ikomiti yokutya yekarhulumente ekugqibeleni iguqule iziphakamiso zayo.
Le Nkcazelo iyahambelana noko Siyamazi malunga neCholesterol Metabolism
Siye sazi ngeminyaka ukuba ingozi yomzimba ihambelana ngqo namazinga e- cholesterol ye-LDL . Inokumangalisa ukuba uyazi (kwaye, ukwesaba, kuya kumangaliswa oogqirha abaninzi ukuba bazi) ukuba i-cholesterol yokutya ayinayo imiphumo ngqo kwi-LDL cholesterol.
Xa udla isidlo se-cholesterol esiphezulu, i-cholesterol efunyanwa kumanzi iyapakishwa kuma- chylomicron (kwaye kungekhona kwiincinci ze-LDL), kunye nama-acid acids ekudleni kwakho.
I-chylomicron iyakhululwa kwigazi, kwaye ihambisa ii-acid acids udla nje kwii-tisses (imisipha kunye neoli). Iingxube ze-chylomicron - ezibandakanya zonke i-cholesterol ezidliwayo-zithathwa kwisibindi ukuze ziqhutywe. I-cholesterol ukusuka ekudleni kwakho, ke, ayihanjiswanga ngokuthe ngqo kumathishu kwaye ayifaki ngokuthe ngqo kwi-particle LDL.
Ngokuqhelekileyo, i-chylomicron ihlanjululwe ngokupheleleyo kwigazi ngaphakathi kweyure okanye ezimbini emva kokutya. Esi sizathu esinye isizathu sokuba ufanele uzilawule xa unamaqondo akho e- blood lipid kulinganiswa - akukho mntu unomdla wokulinganisa i-cholesterol kwi-chylomicrons kuba i-chylomicron-cholesterol ayinxulumene nobungozi benhliziyo.
I-cholesterol yesidlo, ngokwenene, inefuthe kumazinga e-cholesterol ye-LDL, kodwa ngokuthe ngqo. Ingumsebenzi wesibindi ukuvelisa inani "elichanekileyo" le-cholesterol esekelwe kwiimfuno zomzimba. (I-cholesterol ephathwayo ngesibindi ilayishwa kwiipoprotein kwaye ikhutshelwe kwigazi apho ekugqibeleni iba yi-LDL cholesterol.) Ngoko ke, ukuba udla i-cholesterol eninzi, isibindi sifanele sinciphise i-cholesterol yayo kunye nokuveliswa kwayo I-cholesterol yeLDL - ukuhlawula.
Ukuphindaphinda, i-cholesterol yokutya ayithethi ngokuthe ngqo kwiimfucu kwaye ayifakwanga ngokuthe ngqo kwiindidi ze-LDL.
Isibindi - eso sigqeba esilawulayo - sithintela phakathi kwe-cholesterol yokutya kunye ne-LDL ye-cholesterol, kwaye enye yemisebenzi yayo ukulungiswa kwemveliso yayo ye-cholesterol ekuphenduleni ukutya kwakho, ukuze ugcine i-LDL i-cholesterol kumanqanaba athile.
Ngako oko, akufanele kukumangalisa kakhulu oogqirha abalandela unyango lwezonyango, kwaye baqonda i-cholesterol metabolism, ukuze bafunde ukuba i-cholesterol yokutya ayinayo indima enkulu ekunqumeni ingozi yomzimba.
Ngaphantsi
Thina abathandi beqanda bangathanda ukwamukela ipaneli yokutya yekarhulumente kwikhulu lama-21.
> Sour ces:
Iimpawu A. I-Serum ye-cholesterol impendulo kwi-cholesterol yokutya. Am J Clin Nutrition 1984; 40: 351.
U-Hegsted DM, uAusman LM, uJohnson JA, uDallal GE. I-fat fat and serum lipids: ukuvavanya kwedatha yokulinga. Am J Clin Nutrition 1993; 57: 875.
Rong Y, Chen L, Zhu T, et al. Ukusetyenziswa kwamagqabi kunye nomngcipheko we-coronary disease and stroke: i-dose-response response meta-analysis of future studies. BMJ 2013; 346: e8539.