Ama-Antioxidants Avikela Amangqamuzana Ethu

Ama-radicals amahhala ayimpande yezinkinga eziningi zempilo. Ahlasela amaseli ethu futhi angawenza angasebenzi. Funda manje ukuthi yimaphi ama-antioxidants ahlinzeka ngokuvikeleka okuthembekile ikakhulukazi nokuthi yikuphi ukudla okuqukethe!

Ama-radicals wamahhala ahlasela amangqamuzana futhi ama-antioxidants ayawavikela

Ama-radicals amahhala ama-molecule aqukethe umoya-mpilo angazinzi ngokuyingozi ngoba ashoda i-electron esakhiweni sawo samakhemikhali. Awuphelele. Ngakho-ke bafuna i-electron ehambisanayo ukuze iphile futhi.

Kulolu cwaningo lozakwethu obophezelayo ofanelekayo, ama-radicals amahhala anonya futhi, ngaphezu kwakho konke, ayashesha kakhulu. Uma i-radical yamahhala yenziwa, kuthatha imizuzwana eyi-10-11 ephula irekhodi (imizuzwana engu-0.00000000001) ukuhlasela noma yisiphi isisulu.

Ihlwitha i-electron eyidingayo ku-molecule elandelayo engcono kunazo zonke (isib. ama-molecule olwelwesi lweseli, amaprotheni, noma i-DNA). Lokhu kweba ama-electron kubizwa ngokuthi i-oxidation. Njengoba i-oxidation - ngokushesha nje lapho idlula izinga elibekezelelekayo - ibeka ubunzima emzimbeni, ibizwa ngokuthi ukucindezeleka okwenziwe nge-oxidative.

Ama-radicals wamahhala nemiphumela yawo emzimbeni

I-molecule eyebiwe manje ayinayo i-electron. Ngakho-ke manje isiba yi-radical yamahhala ngokwayo futhi ihambe iyofuna isisulu esingaphanga i-electron.

Ngale ndlela, ukusabela kweketango eliyingozi kuqaliswa. Ukugxila okuphezulu kwama-radicals wamahhala ngakho-ke kungabangela ukusabela okungenakubalwa kwamaketanga, okungagcina kuholele ezingeni eliphezulu lengcindezi ye-oxidative futhi ngaleyo ndlela kube nomonakalo omkhulu olandelayo emzimbeni:

• Ukusebenza kwamaseli okukhawulelwe noma ukufa kweseli ngenxa yokulimala kolwelwesi
• Ukulimala kwe-DNA okuholela ekuhlukaneni kwamaseli okungalawuleki (ukuthuthukiswa komdlavuza)
• ukungasebenzi kwama-enzyme
• Ukwakhiwa okuncishisiwe kwamaprotheni angapheli
• Ukubhujiswa kwama-receptors endaweni yeseli: Izamukeli zingamaprotheni athile endaweni yeseli, lapho - ngokuya ngesikhiya kanye nesimiso esiyinhloko - amahomoni afanelekile, ama-enzyme, noma ezinye izinto zingama. Lokhu kudokha kuthumela isignali ethile kuseli. Isibonelo, amaseli anama-receptors e-hormone insulin. Lapho i-insulin ibopha kulawa ma-receptors, iseli lithola isignali yokuthatha i-glucose. Umgomo wokukhiya nokhiye ufana nohlobo lwekhodi ehloselwe ukuqinisekisa ukuthi izinto ezithile kuphela ezingabophezela kumamukeli ahambisanayo futhi kuphela izinto “ezigunyaziwe” ezithuthelwa kumaseli. Izinto (isb. ubuthi) ezingenawo “ukhiye” zenqatshelwa ukufinyelela kumaseli. Ama-radicals wamahhala angabhubhisa ama-receptors futhi ngaleyo ndlela avimbele ukudluliswa kwesignali. Uma, ngokwesibonelo, ama-receptors e-insulin ecekelwa phansi, ingqamuzana okukhulunywa ngayo alisatholi noma iyiphi i-glucose, okusho ukuthi lingasenaphethiloli, bese liyafa.
  Ama-Antioxidants ayadingeka ngoba ama-radicals mahhala alimaza umzimba
  Ama-radicals mahhala adala umonakalo omkhulu emizimbeni yethu. Uma uzazi wena kanye nezinkinga zakho ohlwini olungezansi, kufanele uzame ukudla okunempilo.

Ama-Antioxidants avikela isikhumba

Ngokukhethekile, lo monakalo obangelwa ama-radicals wamahhala uzibonakalisa, isibonelo, esikhumbeni esishwabene nesimpunga esintula noma yikuphi ukunwebeka, ebuthakathakeni be-venous, nasemithanjeni ye-varicose, njengoba ama-radicals mahhala nawo alimaza imithambo yegazi. Lesi sakamuva singabuye sizibonakalise ngomfutho wegazi ophakeme nezinye izinkinga zenhliziyo nemithambo yegazi.

Ama-Antioxidants avikela amehlo

Uma izitsha ezinhle zamehlo zithintekile, izimpawu zokuwohloka nokuncipha kombono zenzeka lapho.

Ama-Antioxidants avikela ubuchopho

Uma ama-radicals mahhala ehlasela imithambo yegazi ebuchosheni, ngokushesha noma kamuva lokhu kungaholela ekushayweni. Uma izinzwa ezisebuchosheni ziyizisulu zokuhlaselwa, lokhu kuphazamisa ukuqapha kwengqondo futhi kungakhuthaza ukuwohloka komqondo.

Ama-Antioxidants avikela izicubu ze-cartilage

Ama-radicals wamahhala angahlasela i-collagen ku-cartilage futhi athinte isakhiwo sayo samangqamuzana, okungaholela ezinkingeni ezihlangene ezifana nesifo samathambo.

Ama-Antioxidants angavikela kumdlavuza

Uma i-DNA yamaseli yonakaliswa ama-radicals mahhala, lokhu kungaholela kulokho okubizwa ngokuthi ukuwohloka kwamaseli. Uma izinqubo zomzimba ngokwazo, okufanele zivale leli ngqamuzana elidukile, zingaphumeleli, leli ngqamuzana lingaphindaphindeka futhi isimila sibe nomdlavuza. Funda nalolu daba : Amavithamini avikela umdlavuza. Ama-Antioxidants aboniswe ukuthi avikela umdlavuza kulolu cwaningo ( 5Trusted Source ).

Lokhu kukhetha okuncane kwemithelela elimazayo engaba khona yama-radicals wamahhala kubonisa ukuthi ngeke kube nesithombe esisodwa somtholampilo sokuthi ama-radicals mahhala ABANGABAMZEKI ekudaleni.

Ama-Antioxidants angabasizi abadinga kakhulu

I-antioxidant kuphela (ebuye ibizwe ngokuthi i-free radical scavenger) engaphazamisa ukusabela kweketango lama-radicals mahhala futhi ngaleyo ndlela ivimbele ukulimala kwamaseli.

Ngakho-ke ngaphambi kokuba ama-radicals amahhala ahlwithe i-electron kulwelwesi lweseli noma kuphrotheni ebalulekile yomzimba, ama-antioxidants angenela futhi anikele ngokuzithandela enye yama-electron awo ku-radical yamahhala. Ngakho-ke ama-antioxidants anikela ngama-electron awo kalula kakhulu kunolwelwesi lweseli noma i-DNA.

Ngale ndlela, amangqamuzana omzimba ahlala evikelekile lapho kukhona ama-antioxidants anele.

I-antioxidant iqinisekisa ukuthi amangqamuzana omzimba avikelekile ekuhlaselweni kwama-radical mahhala ngezindlela ezimbili:

Ama-Antioxidants anikela ngama-electron ngokuzithandela ukuze avikele amaseli.

Ama-Antioxidants ngokwawo awalokothi abe ama-radical mahhala noma - ngemva kokuyeka i-electron - abuyiselwa ngokushesha efomini yawo ye-antioxidant futhi ngaleyo ndlela aqinisekise ukuphela okungazelelwe kokusabela kweketango eliyingozi. Isibonelo, uma i-antioxidant vitamin E ingasebenzi i-radical, izoba okwesikhashana i-radical yamahhala ngokwayo, okuthiwa i-vitamin E radical. Kodwa-ke, lokhu akusoze kwaba nemiphumela emibi, njengoba ibuyiselwa ngokushesha esimweni sayo sasekuqaleni ngovithamini C ukuze iphinde isebenze njenge-antioxidant. Lokhu kuvuselelwa kabusha kwe-vitamin E radical kungomunye wemisebenzi ebaluleke kakhulu kavithamini C.
Ama-radicals wamahhala nama-antioxidants ngezikhathi zangaphambi komlando
Ama-radicals wamahhala athola i-rap embi futhi kubonakala sengathi akukho okumele sigxile kukho ngaphezu kokuwaqeda.

Eqinisweni, nokho, ama-radicals amahhala abekhona isikhathi eside (noma ngaphezulu) njengoba kukhona ukuphila emhlabeni. Izilwane nezitshalo kwase kukudala zakha amasu amaningi okucosha amanzi ngesikhathi okhokho bethu besalokhu benyakaza bebhonga emagatsheni. Ngaleso sikhathi sasingekho isidingo sokunakekela ngenkuthalo nangokuqaphela ama-radicals mahhala.

• Okokuqala, zazingekho cishe izici eziningi zobungozi ngaleso sikhathi ezazingaholela ekukhiqizeni inani elinjalo elingadingekile lama-radicals mahhala njengoba zikhona namuhla (bheka ngezansi ukuze uthole izici eziyingozi),
• okwesibili, indlela yokuphila yayinempilo kakhulu (ukucindezeleka okungapheli okuncane, ukuvivinya umzimba okulinganiselayo, ukukhanya kwelanga okwengeziwe, njll.) futhi
• okwesithathu, ukudla kunikeze inani elikhulu kakhulu lama-antioxidant, ukuze ukweqisa okungenzeka kwama-radicals mahhala kusingathwe ngokushesha.

Ama-radicals wamahhala nama-antioxidants ezikhathini zanamuhla

Namuhla isimo sihluke kakhulu. Abantu bayabhema, baphuza utshwala, badla ukudla okungenamsoco, bahlala ezindaweni ezinezimoto eziningi kanye nesisi esikhipha umoya omningi - kubonakala sengathi - basengozini yokuncibilika kwe-radioactive njalo ngemva kweminyaka engama-25, futhi baphuza imithi yokuqeda ngisho nokuluma okuncane kakhulu.

Ngokwezilinganiso eziqinile, ngalinye elilodwa lamaseli omzimba wethu ayizigidi eziyizinkulungwane eziyi-100 manje lihlaselwa izinkulungwane ezimbalwa zama-radicals mahhala nsuku zonke. Ngakho-ke amanani amakhulu ama-antioxidants ayadingeka ukuze abeke ibutho "elinamandla" endaweni yalo.

Ngeshwa, namuhla asigcini nje ngokuvezwa ama-radicals amaningi mahhala, kodwa ngesikhathi esifanayo sizitika ngokudla okuqukethe ama-antioxidants ambalwa nambalwa futhi, ngenxa yokulimala kwawo, kuthwalisa umzimba ngama-radicals amahhala engeziwe.

Ama-Antioxidants ekudleni

Nakuba ukudla kwesimanje okusekelwe kokusanhlamvu, ubisi, nenyama kunikeza izakhi, amaprotheni, ama-carbohydrate, namafutha ngobuningi, ama-antioxidants mancane futhi aphakathi nendawo. Ngakho-ke abantu baba i-buxomer kanye ne-buxomer, kodwa ngesikhathi esifanayo baya ngokuya begula. Sekuvele kukhonjisiwe lapha ukuthi ubisi luvimbela umsebenzi we-antioxidant wezithelo.

Okushodayo ukukhetha okucebile kwemifino nezithombo eziningi ezahlukene, izithelo nezitshalo zasendle, amafutha emvelo namafutha kanye nembewu yamafutha namantongomane. Konke lokhu kudla kuyimithombo ephelele futhi ecebile yama-antioxidants abalulekile. Ngakho-ke, ukudla okusekelwe ekudleni okuphilayo kuvikela ekuguleni nasekugugeni ngaphambi kwesikhathi.

Ama-radicals wamahhala nawo angaba usizo

Nokho, ama-radicals mahhala awabi njalo. Njengoba kuvame ukuba njalo, inani lenza umehluko phakathi kokuhle nokubi.

Ngale ndlela umzimba wethu ukhiqiza ama-radicals amaningi wamahhala ngesikhathi semisebenzi yansuku zonke:

Ama-radicals wamahhala ekuphefumuleni kwamaselula

Amangqamuzana ethu ahlala edinga umoya-mpilo ukuze akhiqize amandla. Ama-radicals wamahhala nawo akhiwa njengomkhiqizo okhiqizwayo - uma kunjalo, kukhuphuka ukukhiqizwa kwamandla emzimbeni.

Ukukhiqizwa kwamandla kuyashintsha ngokwesidingo. Isibonelo, kuyanda ezimweni ezicindezelayo, phakathi nemidlalo, noma lapho ugula. Ngenxa yalokho, lezi zici ezintathu zenyusa inani lama-radicals mahhala ngokwemvelo.

Ama-radicals wamahhala angabhubhisa amagciwane namagciwane

Ngaphezu kwalokho, ama-radicals mahhala awadalwa nje kuphela njengomkhiqizo wemisebenzi ethile yomzimba. Akhiqizwa umzimba wethu - ngokunembile amasosha ethu omzimba - ngenjongo eqondile.

Ama-radicals wamahhala awakwazi ukuhlasela kuphela izakhiwo zomzimba ezinempilo kodwa futhi ayakwazi ukubhubhisa ngokuqondile amagciwane afana namagciwane anolaka noma amagciwane noma anqande izinqubo zokuvuvukala ezibukhali. Ngakho-ke kulapho ama-radicals amahhala efiseleka khona futhi anenzuzo.

Imaphi ama-antioxidants akhona?

Iyiphi into yokuqala efika engqondweni yakho lapho uzwa igama elithi “antioxidants”? Vitamin C? I-Vitamin C iyi-antioxidant. Lokho kulungile. Kodwa-ke, imiphumela yayo ye-antioxidant ayicishe ibe mkhulu njengoba idumela layo lingaholela ekukholweni.

Ngokwesibonelo, i-apula linamamiligremu angu-10 kavithamini C, kodwa umphumela walo wokulwa ne-antioxidant mkhulu ngokuphindwe kaningi. Kukhulu kangangokuthi uma umphumela we-antioxidant uvela kuvithamini C kuphela, bekuyodingeka uqukathe amamiligremu angu-2,250 kavithamini C, okungenjalo.

Ngokusobala, ama-apula aqukethe nenani lezinye izinto ezinomphumela onamandla kakhulu wokulwa ne-antioxidant kune-vitamin C. Leli qembu elisebenza kahle kakhulu lihlanganisa, isibonelo, ama-enzyme nama-polyphenols okuyingxenye yezitshalo zesibili (isb. ama-flavonoid, ama-anthocyanins, ama-isoflavone, njll.)

Amaqembu amahlanu amakhulu ama-antioxidants asebenza kahle kakhulu

• amavithamini
• amaminerali
• trace izakhi
• ama-enzyme
• Amakhemikhali e-Phytochemicals (abizwa nangokuthi ama-bioactive plant compounds noma ama-phytochemicals) ekuqaleni akhiqizwa isitshalo noma isithelo ukuvikela leso sitshalo noma isithelo ekuhlaselweni kwesikhunta, izinambuzane, noma imisebe ye-UV. Amanye ama-phytochemicals anomphumela wokulwa ne-antioxidant yimibala esitshalweni, enemibala yezimbali, amaqabunga, noma izithelo. Emzimbeni womuntu, lawa ma-antioxidants ezitshalo angasiza ukuhlala unempilo futhi uqaphile.