Qhov sib txawv tseem ceeb ntawm daim tawv nqaij dub thiab dawb yog nyob ntawm hom melanin uas tsim nyob rau hauv ob hom tawv nqaij. Cov tawv nqaij dub yog tshwm sim los ntawm kev tsim cov eumelanin, uas yog xim av tsaus mus rau xim dub thaum tawv nqaij dawb yog tshwm sim los ntawm kev tsim cov pheomelanin, uas yog liab mus rau daj xim.
Tib neeg cov tawv nqaij xim txawv ntawm qhov tsaus ntuj tshaj plaws mus rau qhov ntxoov ntxoo tshaj plaws. Melanin yog lub luag haujlwm tseem ceeb ntawm cov xim ntawm cov tawv nqaij ntawm tib neeg. Yog li ntawd, noob caj noob ces kuj ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab ntawm daim tawv nqaij. Cov tawv nqaij dub feem ntau yog los ntawm kev tsim cov eumelanin thaum cov tawv nqaij dawb yog vim pheomelanin.
Dab tawv nqaij yog dab tsi?
daim tawv nqaij dub yog hais txog cov tawv nqaij tawv ntawm tib neeg. Txawm li cas los xij, qhov laj thawj tseem ceeb rau cov tawv nqaij dub yog tsim cov melanin. Cov tawv nqaij dub yog tshwm sim los ntawm overproduction ntawm eumelanin. Eumelanin yog ib hom melanin uas yog lub luag haujlwm rau cov xim tsaus hauv tib neeg. Eumelanin ua rau cov xim av tsaus rau cov xim dub, ua rau cov xim tawv nqaij tsaus.
Tsis tas li ntawd, qhov loj thiab tus naj npawb ntawm cov xim tsim tawm kuj cuam tshuam rau cov xim ntawm daim tawv nqaij. Melanocytes yog cov hlwb tsim cov xim. Thaum muaj ntau cov melanocytes lossis loj melanocytes, muaj ntau ntau ntawm melanin. Yog li ntawd, qhov no kuj tuaj yeem ua rau cov xim tsaus dua ua rau cov xim tawv nqaij dub.
Tsis tas li ntawd, kev qhia, kev coj cwj pwm thiab kev cuam tshuam ntawm melanin yog nyob ntawm nws cov caj ces. Yog li ntawd, noob caj noob ces kuj ua lub luag haujlwm tseem ceeb hauv cov xim ntawm daim tawv nqaij. Tsis tas li ntawd, qhov no yog qhov laj thawj tseem ceeb vim li cas cov xim ntawm cov tawv nqaij dub kuj txwv rau ib pawg neeg raws li lawv haiv neeg. Ntxiv mus, muaj cov kab mob dermatological tshwj xeeb cuam tshuam nrog cov neeg tawv nqaij dub. Cov mob xws li melasma, eczema discoid thiab kab mob lupus erythematosus feem ntau pom nyob rau hauv cov neeg tawv nqaij tsaus.
Daim tawv nqaij dawb yog dab tsi?
Cov neeg tawv nqaij dawb feem ntau yog nyob rau sab hnub poob Europe thiab thaj chaw Esxias nruab nrab. Txawm li cas los xij, qhov laj thawj tseem ceeb rau kev nthuav dav ntawm daim tawv nqaij dawb yog qhov muaj pheomelanin. Pheomelanin yog ib hom melanin uas yog lub luag haujlwm rau lub teeb xim ntawm daim tawv nqaij. Pheomelanin tsim cov xim liab rau xim daj, ua rau lub teeb xim ntawm daim tawv nqaij. Tsis tas li ntawd, qhov tsawg ntawm melanocytes thiab melanocytes me me kuj ua rau cov tawv nqaij dawb. Nws yog vim lawv tsim cov melanin tsawg dua piv rau cov hlwb loj.
Zoo ib yam li daim tawv nqaij dub, tawv nqaij dawb kuj yog los ntawm cov noob caj noob ces ntawm melanin ntau lawm. Ntxiv mus, muaj cov kab mob tshwj xeeb ntawm daim tawv nqaij thiab cov xwm txheej cuam tshuam nrog cov tawv nqaij dawb. Qee qhov xwm txheej no yog, cov qog nqaij hlav ntawm daim tawv nqaij cuam tshuam nrog kev tsim cov melanin tsawg thiab cov qog nqaij hlav tsis-melanoma.
Dab tsi zoo ib yam ntawm daim tawv nqaij dub?
- Melanin yog lub luag haujlwm rau cov tawv nqaij dub thiab dawb.
- Tseem, noob caj noob ces ua lub luag haujlwm hauv kev qhia ntawm cov tawv nqaij dub thiab dawb.
- Ob daim tawv nqaij dub thiab dawb xim yuav txawv raws li nws qhov kev faib tawm thoob plaws ntiaj teb.
- Tsis tas li ntawd, ob hom xim ntawm daim tawv nqaij qhia ntau yam kab mob ntawm daim tawv nqaij thiab cov kab mob dermatological.
Qhov txawv ntawm daim tawv nqaij dub thiab dawb yog dab tsi?
Qhov sib txawv tseem ceeb ntawm cov tawv nqaij dub thiab dawb yog nyob ntawm hom melanin tsim. Cov tawv nqaij dub muaj eumelanin thaum daim tawv nqaij dawb tsim pheomelanin. Ntxiv mus, qhov sib txawv ntxiv ntawm cov tawv nqaij dub thiab dawb yog cov yam ntxwv ntawm melanocytes. Cov tawv nqaij tawv dub muaj cov suav ntau ntawm melanocytes thiab melanocytes loj dua. Hauv qhov sib piv, cov neeg ntawm daim tawv nqaij dawb muaj qhov suav tsawg ntawm melanocytes thiab lawv sib piv me me.
Cov infographic hauv qab no sawv cev rau cov ntaub ntawv ntxiv txog qhov txawv ntawm cov tawv nqaij dub thiab dawb.
Summary – Dub vs Dawb daim tawv nqaij
Dub thiab dawb xim ntawm daim tawv nqaij yog ib lub ntsiab lus ntawm kev sib cav vim nws cov kev xav hauv zej zog. Txawm li cas los xij, biologically, qhov sib txawv ntawm cov xim dub thiab dawb ntawm daim tawv nqaij yog vim qhov sib txawv ntawm melanin ntau lawm. Cov xim ntawm cov tawv nqaij dub los yog cov tawv nqaij tsaus yog vim kev tsim cov eumelanin. Nyob rau hauv sib piv, dawb los yog lub teeb ntawm daim tawv nqaij xim yog vim zus tau tej cov pheomelanin. Yog li ntawd, noob caj noob ces ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab ntawm daim tawv nqaij ntawm tus neeg. Txawm li cas los xij, ob hom xim ntawm daim tawv nqaij raug mob qog noj ntshav thiab lwm yam kab mob dermatological vim muaj ntau yam tshwm sim.
