Radicals rusununguko - tinoda here kubvisa muviri?

Kubva mune zvemazuva ano zvigadzirwa zvezvokurapa chimwe chezvinyorwa zvinokosha ndekutsvakurudza kwekuwedzera hupenyu nekuvandudza hutano, mubvunzo wekudzidza kushanda kwemasununguko ehurukuro pamuviri womunhu unosimudzirwa zvakare. Zvinosuruvarisa, vose vanoshanda munzvimbo iyi vanogadziriswa nekutengeserana, naizvozvo vanhu vasina chekemikari vanowana ruzivo rwakakwana kana rusina kukwana. Vanhu vashomanana vanoziva kuti havasi vose radicals vakasununguka vanokuvadza mumuviri womunhu. Vazhinji vanotenga uye vanoshandisa zvinodhaka zvinopedza radicals, pasina kufunga nezvekuda. Sezvo munyika yanhasi mitemo yebhizimisi iri panzvimbo yekutanga, antioxidants inoparidzirwa nenzira dzakasiyana inodhura. Asi iyo yekutanga yega radicals mumumuviri womunhu haifaniri hake kubviswa, asi zvakasiyana, zvakakosha kusimudzira kugadzirwa kwavo. Vanobatanidzwa mumagadzirirwo emagetsi uye kubatsira kurwisa zvirwere zvakasiyana-siyana. Asi chechipiri yega radicals inokuvadza uye inokonzera zvirwere zvakasiyana-siyana.

Usati watora antioxidants kana mavitamini akasiyana-siyana akasiyana-siyana, unoda kunzwisisa kuti vanodikanwa zvakadini, uye mumamiriro ezvinhu akadini anofanira kushandiswa. Primary primary radicals ndiwo oxygen radicals uye nitric oxide uye lipids. Yokutanga yeiyi inomuka semugumisiro webasa re phagocytes uye macrophages mumasero. Sezvo rusununguko rusununguko rwemakemikoro asina mahwendefa maviri akabatanidzwa mukati mokunze, ivo vari chemakemikari zvikuru. Kutenda kune yakavakirwa mumagetsi ekudzivirirwa, masero anobvisa maamolekemu akadaro nemagadzirirwo emakemikari. Mushure mekuita izvi, hydrogen peroxide inoumbwa. Iyo inoshandiswa ne phagocytes uye macrophages nokuda kwebasa rayo, inoparadza ganda rekunze rebhakitiriya uye microbes. Asi hydrogen peroxide muhupo hwehuni inoshanduka kuva yechipiri isina mahvina hydroxyl radical. Icho chemakemikari chinoshanda uye chinogona kuparadza anenge chero molecule yemuviri womunhu.

Radicals rusununguko rwe nitric oxide inobudiswa panguva yebasa re macrophage, pamwe chete neropa remaseja masero. Nhamba yavo ine chimiro chechimiro chechimiro chinowanzogadziriswa, zvinotsauka zvinokonzera kuwedzera kwehutano kana hypotension. Mukuvapo kwehydroxyl, vanova chemakemikari uye vanotanga kuparadza masero. Kana pasina oxygen radicals inowanikwa mumasero e lipid, inonyanya kushandiswa yekuparadza inotanga. Kubatanidzwa kweketani inopinda kunoitika. Hydroxyls inobatana nemafuta acids, ayo ari chikamu chemukati membrane, zvichiita kuti kuumbwa kwezvinyorwa zvinopisa. Vanopinda mune zvimwe zvinoshandiswa mumakemikari, mushure mokunge pidhaididation inenge ichiitika. Izvo zvinokonzera radicals zvisingabhadhari zvinoparadza membrane muchitokisi uye mapuroteni makemikari.

Kuparadzwa kwakadaro kunowanzoitika mumuviri wemunhu, nekuda kwekuti masero anoramba achivandudzwa. Asi rusununguko rusununguko runoparadza chero mamolekemu, kusanganisira iyo ine DNA-nhamba. Ivo vanozivawo kuti vangagadzirisa sei, asi ne "maitiro" okutanga, "makemikari kukanganisa" anomuka. Nemhaka yeizvi, masero matsva anoumbwa zvisina kururama, uye pakupedzisira anoguma kuumba.

Sezvatotaurwa pamusoro apa, kurwisana nemagetsi, pane zvinodhaka zvine antioxidants. Izvi ndizvo zvinhu zvinopa electron uye hazvikuvadzi muviri. Vanoratidzika kuti vanobatanidza pasina radicals, vasingabvumi kuparadzwa pamusoro pekugara. Kunyatsotaura, muviri wemunhu unokwanisa kubudisa antioxidants. Asi kuonekwa kwemahara radicals kwakagadziriswa nezvinhu zvakawanda, uye maitiro avo mumuviri anodarika chimiro. Zvisinei, haasi yose antioxidants, kunyanya yakagadzirwa, inobatsira. Kuwedzerwa kwenhamba yavo kunotanga kusunga uye yekutanga rusununguko rusununguko. Kana pasina chinoratidza kuti kuwedzera kwekudya kwe-antioxidants, zvino kusimbiswa kunofanira kunge kuri kudya kwakakwana, iyo mhuka yepamusoro inokurukurwa nechiremba nenyanzvi yezvokudya.