Dawb radicals - seb koj xav kom tshem tau ntawm lawv lub cev?

Txij li thaum lub niaj hnub mob kev lag luam yog ib lub tseem ceeb tshaj plaws yog txoj kev tshawb no ntawm tom neej thiab kev txhim kho kev noj qab nyob, ntawm lub nce rau lo lus nug ntawm kev kawm cov teebmeem ntawm dawb radicals rau tib neeg lub cev. Tu siab, tag nrho cov ua hauj lwm nyob rau hauv cov cheeb tsam no yog kev kawm rau coj mus muag cawv, kom cov neeg uas tsis muaj cov tshuaj kev kawm ntawv yog tsis muaj tseeb los sis tsis tiav cov ntaub ntawv. Heev ob peb cov neeg paub hais tias tsis yog tag nrho cov dawb radicals muaj teeb meem rau tib neeg lub cev. Feem ntau ntawm cov yuav thiab siv cov khoom uas tshem tawm cov radicals, tsis xav txog seb koj xav tau nws. Vim hais tias nyob rau hauv lub niaj hnub ntiaj teb no ntawm cov lag luam kev cai yog paramount, lub antioxidants uas advertised nyob rau hauv ntau txoj kev, yog heev kim. Tab sis cov thawj free radicals nyob rau hauv tib neeg lub cev tsis tau tsuas yog tsis yuav tsum tau muab tshem tawm, tab sis nyob rau hauv tsis tooj, nws yuav tsum noj lawv ntau lawm. Lawv muab kev koom tes nyob rau hauv metabolic dab thiab pab tua tau ntau yam kab mob. Tab sis theem nrab ua dawb radicals thiab yog qhov ua rau ntawm ntau yam kab mob.

Ua ntej yuav noj antioxidant vitamin complexes los yog sib txawv, koj yuav tsum to taub npaum li cas lawv yuav tsum tau nyob rau hauv cov nyhuv, thiab nyob rau hauv txhua rooj plaub lawv yuav tsum tau siv. Primary dawb radicals - yog cov pa radicals thiab nitric oxide thiab lipids. Tus thawj ntawm cov no yog cov kev tshwm sim ntawm kev ua si ntawm phagocytes thiab macrophages hlwb. Txij li thaum free radicals - yog ib tug qauv muaj tsis muaj khub electron nyob rau hauv ib tug txheej orbit, lawv sib heev kom nquag plias. Nrog rau cov kev tshuaj ntsuam genetic mechanism ntawm kev tiv thaiv, lub hlwb kom tshem tau tej molecules los ntawm tshuaj tshua. Tom qab txoj kev tshua, hydrogen peroxide yog tsim. Nws yog siv phagocytes thiab macrophages rau cov kev ua ub, nws txav lub plhaub ntawm cov kab mob thiab cov kab mob. Txawm li cas los, hydrogen peroxide nyob rau hauv lub xub ntiag ntawm hlau yog hloov dua siab tshiab rau hauv lub thib ob hydroxyl free radical. Nws yog sib active thiab muaj peev xwm ua kom puas zoo yam molecule ntawm tib neeg lub cev.

Dawb radicals ntawm nitrogen oxides tawm txim liab thaum lub sij hawm cov kev ua ntawm macrophages thiab leeg tshav hlwb. Lawv tus xov tooj yog nyob rau hauv ib txwm metabolism nruj me ntsis normalized, sib txawv ua rau tawg los yog hypotension. Nyob rau hauv lub xub ntiag ntawm hydroxyl lawv ua sib active thiab pib ua kom puas rau lub hlwb. Yog hais tias cov dawb cov pa radicals yog nkag tau rau hauv lub lipid cell ces pib cov txheej txheem ntawm kev puas tsuaj ntawm cov feem ntau kom nquag plias. Pib ib cov saw tshuaj tiv thaiv no tshwm sim. Hydroxyls nrog fatty acids, uas yog ib feem ntawm cell week, uas ua rau tsim ntawm lipid radicals. Lawv tuaj nyob rau hauv ntxiv cov tshuaj tshua, tom qab uas muaj overoxidation lipids. Tshwm sim los ntawm dawb radicals rhuav tshem cov cell daim nyias nyias thiab protein tebchaw.

Tej kev puas tsuaj yog ib txwm rau tib neeg lub cev vim lawv lossi tshiab hlwb. Txawm li cas los, dawb radicals puas tej molecules, nrog rau cov uas muaj cov DNA codes. Lawv kuj yuav tau rov qab, tab sis xws "thaum ntxov" tshua tshwm sim "tshuaj yuam kev." Vim hais tias ntawm no, tshiab lub hlwb yog tsim kom raug, thiab nws thiaj li xav tsis tsim.

Raws li hais saum toj no, muaj cov tshuaj uas muaj antioxidants mus tua cov radicals. Cov no yog cov tshuaj uas pub electrons, thiab yog li tsis ua mob rau hauv lub cev. Lawv zoo li khi dawb radicals, tiv thaiv kev puas tsuaj saum toj no ib txwm. Nruj me ntsis hais lus, tib neeg lub cev nws tus kheej muaj peev xwm sawv ntawm qhov uas ua antioxidants. Tab sis lub rov tshwm sim ntawm dawb radicals los ntawm ntau yam, thiab lawv cov tsos rau hauv lub cev ntau tshaj cov cai. Txawm li cas los, tsis yog txhua txhua antioxidants, tshwj xeeb tshaj yog dag, nyiaj poob haujlwm. Tshaj lawv tus xov tooj pib khi thiab thawj free radicals. Yog hais tias muaj yog tsis muaj indications enhanced txais tos ntawm antioxidants, qhia ntau txog yuav tsum tau nyob rau hauv ib tug xuas, uas yog zoo dua los tham txog cov zaub mov uas muaj ib tug kws kho mob qhia noj haus.