Qhov tob tob rau hauv Cellular Defense
Hauv peb txoj kev mob siab rau kev noj qab haus huv thiab kev ua neej ntev, lo lus "antioxidant" yeej ib txwm yog lub hauv paus ntawm kev noj qab haus huv -. Los ntawm cov xim vibrant ntawm peb daim hlau mus rau cov tshuaj pleev ib ce tshiab, cov tshuaj tua kab mob antioxidant tau qhuas tias yog tus saib xyuas peb txoj kev noj qab haus huv. Tab sis dab tsi yog lawv sib ntaus sib tua? Vim li cas lawv thiaj li tseem ceeb heev rau yuav luag txhua yam ntawm tib neeg kev noj qab haus huv?
Yuav kom nkag siab txog qhov tseem ceeb ntawm cov tshuaj antioxidants, peb yuav tsum xub nkag siab lawv cov yeeb ncuab: dawb radicals.
Cov dawb radicals tsis ruaj khov, muaj zog heev reactive molecules uas ib txwm ua los ntawm cov txheej txheem metabolic tseem ceeb hauv lub cev, xws li hloov khoom noj rau hauv lub zog. Lawv tsis ruaj khov vim tias lawv tsis muaj hluav taws xob nyob hauv lawv lub plhaub sab nraud, ua rau lawv "nyem" cov hluav taws xob los ntawm cov khoom nyob ze, xws li cov protein, lipids, thiab DNA. Cov tub sab nyiag no ua rau cov molecules puas thiab tuaj yeem tig mus rau hauv cov dawb radicals lawv tus kheej, ua rau muaj kev phom sij txaus ntshai hu ua oxidative stress.
Xav txog nws li no: dawb radicals zoo li xeb hauv lub ntiaj teb lom neeg, maj mam degrading thiab cuam tshuam cov txheej txheem ntawm cov hlwb. Thaum tib neeg lub cev tsim cov dawb radicals, cov khoom siv sab nraud thiab kev ua neej tuaj yeem ua kom lawv cov khoom tsim tawm. Cov no suav nrog kev ua pa phem, muaj tshuaj lom neeg, tshuaj tua kab, raug ultraviolet hluav taws xob ntau dhau los ntawm lub hnub ci, haus luam yeeb, haus cawv ntau dhau, ntau cov khoom noj thiab kib, kev ntxhov siab ntev, thiab kev tawm dag zog ntev.
Antioxidants ua lub luag haujlwm tseem ceeb hauv cov xwm txheej no, ua tus tsim kev thaj yeeb nyab xeeb. Lawv yog cov molecules uas pub dawb electrons rau dawb radicals, neutralizing lawv yam tsis muaj kev puas tsuaj rau tus kheej. Lawv yog ib feem ntawm lub cev sophisticated tiv thaiv thiab kho system, tiv thaiv ib tug saw cov tshuaj tiv thaiv ntawm cell puas.
Cov teebmeem ntawm oxidative kev nyuaj siab tsis yog tas rau ib lub cev lossis lub cev tab sis yog qhov teeb meem hauv lub cev. Yog li ntawd, kev tiv thaiv los ntawm antioxidants permeate ntau lub cev ua haujlwm. Nov yog qee qhov chaw tseem ceeb uas cov tshuaj antioxidants tseem ceeb tsis tau:
1. Cellular Health thiab DNA Integrity
Hauv paus, oxidative kev nyuaj siab ncaj qha tawm tsam cov qauv ntawm peb cov hlwb -DNA. Kev puas tsuaj DNA tsis kho ua rau muaj kev hloov pauv. Cov tshuaj tiv thaiv antioxidant xws li vitamin C, vitamin E, thiab ellagic acid nkag mus rau hauv lub cell nucleus, pab tiv thaiv DNA puas thiab yog li tswj kev ncaj ncees ntawm peb cov lus qhia lom neeg feem ntau.
2. Kev noj qab haus huv ntawm daim tawv nqaij thiab qhov tseem ceeb
Peb cov tawv nqaij yog thawj kab ntawm kev tiv thaiv ib puag ncig aggressors, tas li raug oxidative puas tsuaj, tshwj xeeb tshaj yog los ntawm ultraviolet hluav taws xob. Qhov kev puas tsuaj no rhuav tshem collagen thiab elastin - cov proteins tseem ceeb uas tswj cov tawv nqaij firmness thiab elasticity - ua rau cov tawv nqaij ntxov ntxov, sagging tawv nqaij, thiab hnub nyoog me ntsis. Antioxidants tsim ib qho kev tiv thaiv ntuj. Lawv pab tshem tawm cov dawb radicals uas tsim los ntawm lub hnub raug, txo qhov mob, thiab txhawb kev kho daim tawv nqaij, yog li ua kom tawv nqaij hluas.
3. Lub hlwb thiab kev txawj ntse muaj nuj nqi
Lub paj hlwb raug rau oxidative kev nyuaj siab. Nws noj ntau cov pa oxygen, muaj cov ntsiab lus siab ntawm oxidised fatty acids yooj yim, thiab muaj cov qib qis ntawm endogenous antioxidants. Qhov no ua rau nws yog lub hom phiaj tseem ceeb ntawm kev puas tsuaj dawb radical, uas txuas nrog rau kev paub txog kev poob qis, nco tsis tau, thiab cov kab mob neurodegenerative xws li Alzheimer's thiab Parkinson's. Antioxidants xws li flavonoids (pom nyob rau hauv berries, tshuaj yej, thiab cocoa), vitamin E, thiab curcumin tau pom tias hla cov ntshav - hlwb teeb meem, pab tiv thaiv neurons, txo qhov mob, thiab txhawb kev noj qab haus huv ntawm neural tes hauj lwm uas underpin peb xav thiab nco.
4. Kev Tiv Thaiv Kab Mob Ntshav Oxidative stress plays lub luag haujlwm tseem ceeb hauv kab mob plawv. Nws lub luag haujlwm tseem ceeb yog oxidation ntawm qis - ntom lipoprotein (LDL) cholesterol. Ntuj LDL yog qhov tsis zoo, tab sis ib zaug oxidised, nws dhau los ua ib qho tseem ceeb rau atherosclerosis (kev tsim cov quav hniav hauv cov phab ntsa hlab ntsha). Plaque ua rau cov hlab ntsha nqaim, nce ntshav siab, thiab tuaj yeem ua rau lub plawv nres thiab mob stroke. Antioxidants zoo li Coenzyme Q10, Flavonoids, thiab Vitamin E pab tiv thaiv LDL cholesterol oxidation, txo qhov mob hauv cov hlab ntsha, thiab txhim kho endothelial muaj nuj nqi, yog li txhawb nqa tag nrho lub plawv thiab vascular elasticity.
5. Immune System Fortification
Lub cev tiv thaiv kab mob nws tus kheej siv cov dawb radicals ua riam phom los rhuav tshem cov kab mob invading. Txawm li cas los xij, overproduction ntawm cov reactive molecules tuaj yeem ua rau muaj kev puas tsuaj, ua rau lub cev tsis muaj zog thiab ua rau mob ntev. Lub xeev tsis tu ncua ntawm qib qis - mob tsis yog lub hauv paus ua rau muaj ntau yam kab mob niaj hnub no. Antioxidants, tshwj xeeb tshaj yog vitamin C, vitamin E, thiab ntshiab ellagic acid, tuaj yeem hloov kho lub cev. Lawv pab tiv thaiv lub cev tiv thaiv kab mob los ntawm tus kheej - puas, tso cai rau lawv ua haujlwm zoo thiab ua kom muaj kev sib npaug thiab muaj txiaj ntsig zoo.
6. Kev Tiv Thaiv Qhov Muag thiab Kev Pom Zoo
Lub qhov muag tau raug pom los ntawm lub teeb thiab oxygen, ua rau cov ntaub so ntswg ntawm qhov muag, tshwj xeeb tshaj yog cov retina, muaj kev cuam tshuam rau oxidative puas tsuaj. Qhov kev puas tsuaj loj no yog qhov tseem ceeb ua rau muaj hnub nyoog - ntsig txog macular degeneration (AMD) thiab cov kab mob cataracts, ua rau cov tshuaj tiv thaiv kab mob tshwj xeeb tseem ceeb heev rau qhov muag kev noj qab haus huv.
7. Txo cov txheej txheem kev laus
Qhov tseem ceeb, kev puas tsuaj los ntawm oxidative kev nyuaj siab yog ib qho ntawm cov kev xav tseem ceeb ntawm kev laus -"dawb radical aging txoj kev xav." Antioxidants pab qeeb cellular aging, txo lub hnub nyoog - cuam tshuam o, thiab tswj tag nrho cov tseem ceeb ntawm lub cev los ntawm tsis tu ncua neutralizing dawb radicals.
Nkag siab txog "vim li cas" yog qhov tseem ceeb rau kev nrhiav "txoj hauv kev zoo." Txoj hauv kev zoo tshaj plaws los txhawb cov qib antioxidant tsis yog los ntawm kev noj ib qho ntxiv, tab sis los ntawm kev coj ua ib txoj hauv kev uas pib nrog koj cov zaub mov. Cov kws kho mob pom zoo kom noj zaub mov zoo vim tias cov nroj tsuag muaj phytonutrients, uas yog cov muaj zog tshaj plaws antioxidants. Xaiv cov txiv hmab txiv ntoo thiab zaub ntawm ntau yam xim los tsim kom muaj kev saj zoo. Tsaus-cov zaub mov muaj xim, xws li txiv hmab txiv ntoo, nplooj ntsuab, beets, txiv kab ntxwv, thiab txiv kab ntxwv liab, muaj ntau cov antioxidants, suav nrog anthocyanins, resveratrol, thiab carotenoids. Tsis txhob hnov qab txiv ntseej, noob, thiab txuj lom; lawv yog qhov zoo tshaj plaws ntawm cov vitamin E. Tsis tas li ntawd, nrog kev nce qib hauv kev siv tshuab, ntau cov tshuaj tiv thaiv antioxidant tau dhau los ua, xws li ntshiab ellagic acid hmoov, uas kuj pab txhawb peb kev noj qab haus huv.
Antioxidants nyob deb ntawm kev noj qab haus huv sai sai; lawv yog lub hauv paus ntawm peb txoj kev lom zem. Lawv muab ib qho tseem ceeb tiv thaiv mechanism tiv thaiv oxidative kev nyuaj siab nyob rau hauv lub neej niaj hnub, tiv thaiv peb lub hlwb los ntawm sab hauv.
Rau cov neeg tsis paub, ntshiab ellagic acid hmoov, hais nyob rau hauv tsab xov xwm no, yog ib txwm tshwm sim organic compound pom nyob rau hauv ntau txiv hmab txiv ntoo, zaub, thiab txiv ntseej. Nws belongs rau cov chav kawm polyphenol ntawm cov tebchaw thiab paub txog nws cov khoom antioxidant thiab cov txiaj ntsig kev noj qab haus huv. Nws muaj zog antioxidant kev ua haujlwm.