ICystine ingeyeqembu lama-amino acid aqukethe isulfure. Ifomula yayo yamakhemikhali iqoqo lamakristalu angenambala angenakuncibilika kahle emanzini abandayo. Emzimbeni, yingxenye eyinhloko cishe yawo wonke amaprotheni. Ekukhiqizweni kokudla kusetshenziswa njengesengezo i-E921.
UCystine noCysteine
ICystine iyi-amino acid engumkhiqizo we-cysteine oxidation. Kokubili i-cystine ne-cysteine kubamba iqhaza elibonakalayo ekwakheni ama-peptide namaprotheni, inqubo yokuguqulwa kwawo mutual yenzeka njalo emzimbeni, womabili ama-amino acid ayizinto ezine-sulphur futhi adlala indima elinganayo kunqubo ye-metabolic.
I-cysteine itholakala ngokuguqulwa okude kusuka ku-methionine, inqobo nje uma kukhona amavithamini we-B anele nama-enzyme akhethekile. Izinga lokukhiqizwa kwalo lithonywe ukuphazamiseka komzimba nezinye izifo, kufaka phakathi isifo sesibindi.
© logos2012 - stock.adobe.com Ifomula yokwakhiwa kwe-cystine
Izakhiwo zeCystine
I-amino acid idlala indima ebalulekile emzimbeni futhi yenza imisebenzi eminingi ewusizo:
- iqhaza ekwakhekeni kwezicubu ezixhuma;
- ikhuthaza ukuqedwa kobuthi;
- unomphumela wokulwa ne-antioxidant;
- i-anticarcinogenic enamandla;
- kunciphisa imiphumela eyingozi yotshwala ne-nicotine;
- ngenxa yokuqukethwe kwesibabule, kuthuthukisa ukumuncwa kwezinye izakhi kumaseli;
- kubambezela inqubo yokuguga;
- kuvusa ukukhula kwezinzipho nezinwele;
- iqeda izimpawu zezifo eziningi.
Ukusetshenziswa kwe-cystine
Ngaphezu kokusetshenziswa embonini yokudla, i-amino acid ibalulekile ekubuyiseleni nasekugcineni impilo yomzimba. Kuyingxenye yezidakamizwa eziningi nezithasiselo ezisetshenziselwa ukwelashwa okuyinkimbinkimbi kwezifo ezahlukahlukene.
Izithako ezine-cystine ekubunjweni zisetshenziselwa izifo zesibindi, ukudakwa komzimba, ukwehla kokuzivikela komzimba, i-cholelithiasis, i-bronchitis ne-tracheitis, i-dermatitis, ukulimala kwezicubu ezihlangene.
Ngokusetshenziswa njalo kwento esilinganisweni esinconywayo, isimo sezinzipho nezinwele, ibala liyathuthuka, ukukhuthazela komzimba kuyanda, izakhiwo zayo zokuzivikela ziyaqiniswa, ukumelana nezifo, ukwelashwa kokulimala nokulimala kwenzeka ngokushesha okukhulu.
Njengesengezo sokudla, i-cystine isetshenziswa kakhulu kubhikawozi. Ithuthukisa ukubukeka, umbala nokuthungwa komkhiqizo.
Isikali
Ngenxa yokuthi umzimba uthola i-cystine ekudleni, uma usebenzisa izithako ezingeziwe ngokuqukethwe, umthamo kufanele ubhekwe ukuze umthamo wansuku zonke wento ungadluli i-2.8 gram. Umthamo omuhle kakhulu odingekayo ukuhlangabezana nezidingo zansuku zonke ngu-1.8 amagremu.
Imithombo
ICystine itholakala kumaprotheni emvelo nama-peptide. Kutholakala ekugxileni okuphezulu kunhlanzi, ubhontshisi, i-oats, ukolweni, ugarlic, u-anyanisi, amaqanda enkukhu, i-oatmeal, amantongomane nofulawa. Ukudla okuhlukahlukene kuhle, ngakho-ke nabantu abadla ukudla okuqinile bathola ama-amino acid anele.
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Izinkomba zokusetshenziswa
Emzimbeni ovame ukusebenza, i-cystine ikhiqizwa ngobuningi obanele. Isicelo esingeziwe siyadingeka ezimweni ezilandelayo:
- uneminyaka engaphezu kwengu-60;
- ukuqeqeshwa okukhulu kwezemidlalo;
- ukutholakala kwamanxeba angapholi kahle;
- isimo esibi sezinzipho nezinwele.
Izimo
Njenganoma iyiphi enye into, i-cystine inokuphikisana kokusetshenziswa. Akunconyiwe:
- Abesifazane abakhulelwe nabancelisayo.
- Izingane ezingaphansi kweminyaka engu-18.
- Abantu abanesifo sikashukela.
- Abantu abane-cystinuria eyifa (ukwephulwa kwamaprotheni metabolism).
Awukwazi ukuhlanganisa ukungenwa kwe-cystine ne-nitroglycerin kanye nemithi yokubulala.
Ukushoda kwe-cystine
Ukushoda kwento emzimbeni kwenzeka kakhulu kuyaqabukela ngenxa yokukhiqizwa kwayo okwanele kwemvelo kanye namandla okushintshana ne-cysteine. Kepha ngokuguga nangokuzikhandla okukhulu ngokomzimba, ukugxila kwayo kuyancipha, futhi ukushoda kuholela emiphumeleni elandelayo:
- ukwehla ezindaweni zokuvikela amasosha omzimba;
- ukutholakala kwezifo ezahlukahlukene;
- ukuwohloka kwesakhiwo sezinwele;
- izipikili eziphukile;
- izifo zesikhumba.
Ukweqisa ngokweqile
Lapho uthatha isengezo kumthamo owedlula inkambiso yansuku zonke, imiphumela emibi nezimpawu zingavela:
- isicanucanu;
- ukuphazamiseka kwesitulo;
- ukuqumba;
- ukusabela okweqile kwesikhumba;
- isiyezi namakhanda.
Ngokusebenzisa ngokweqile i-cystine emzimbeni, ingozi yokungasebenzi kahle kohlelo lwe-cardiovascular system iyakhula.
Kunconywa ukuthi ulawule inani le-cystine dose ethathwe ngosizo lochwepheshe; lapho uthatha izithako ezisebenza ngokuphila ngokwakho, kufanele ulandele ngokuqinile imiyalo.
Ukusetshenziswa kweCystine kubasubathi
Ngokwakho, i-cystine ayithinti isilinganiso sokwakhiwa kwemisipha. Kepha yi-amino acid, futhi ama-amino acid asebenza njengesakhi sokwakha imicu yemisipha. I-cystine ibandakanyeka ekwakheni i-collagen, okuyi-scaffold yamaseli futhi yandisa ukuqina kwezicubu ezixhuma.
Ngenxa yokuqukethwe kwayo kwesibabule, ithuthukisa ukumuncwa kwezakhi zokulandelela ezizuzisayo kumaseli egazi. Ubamba iqhaza synthesis creatine, okuyinto edingekayo ukuze agcwalise imithombo yamandla esetshenziselwe ukuqeqeshwa. Kanye nezinye izengezo, i-cystine isheshisa ukuvuselelwa kwamaseli emisipha, amathambo, imisipha kanye noqwanga.
I-amino acid engadingekile enemibandela engahlanganiswa yodwa emzimbeni, kepha idinga ukwengezelwa lapho izinga lehla. Abakhiqizi abahlukahlukene banikeza abasubathi inani elikhulu lezithako zokudla ezine-cystine ekwakhiweni kwazo, ngokwesibonelo, iDouglas Laboratories, iSanas.
Ngaphezu kwemiphumela enenzuzo yezicubu zemisipha, le nto ithuthukisa ukusebenza kwethambo lamathumbu futhi isize ukujwayeza ukusebenza kwesibindi, ngoba yilezi zitho lapho ukungasebenzi kahle kungenzeka khona lapho uthatha ukudla kwezemidlalo.
Ifomu lokukhishwa
Njengesengezo sokudla, i-cystine iyatholakala ngendlela yamaphilisi noma amaphilisi. Ngenxa yokuthi ayincibiliki kahle emanzini, ayikhiqizwa njengokumiswa. Umenzi ukhombisa umthamo wento ephaketheni ngalinye. Njengomthetho, amaphilisi ayi-1-2 ngosuku. Isengezo sisetshenziswa ezifundweni, ubude bazo obuxhomeke ezinkomba. Ngokuvinjelwa kokuntuleka kwe-cystine, inkambo yamaviki amabili kuya kwamane yanele.
