Koj puas tau xav paub tias koj cov xim tawv nqaij, xim plaub hau, thiab xim qhov muag raug txiav txim li cas? Ib txhia neeg muaj tawv nqaij tsaus, ib txhia muaj tawv nqaij dawb. Ib txhia muaj plaub hau dub, thiab ib txhia muaj plaub hau xim av. Dab tsi ua rau muaj qhov sib txawv ntawm cov xim no? Tus thawj coj ua rau txhua yam no hu ua "melanin." Hnub no, peb yuav tham txog cov tshuaj zoo kawg no hauv peb lub cev hu ua melanin.
Melanin yog dab tsi tiag?
Hais yooj yim xwb, melanin yog ib yam xim uas tshwm sim ntuj tsim hauv peb lub cev. Nws yog cov khoom uas muab xim rau peb daim tawv nqaij, plaub hau, thiab qhov muag. Nws yog tsim los ntawm ib hom cell tshwj xeeb hauv peb lub cev hu ua "melanocytes." Qhov xav tsis thoob yog, peb txhua tus muaj tib tus lej ntawm cov cell melanocyte hauv peb lub cev. Txawm li cas los xij, qhov ntau ntawm melanin uas cov cell ntawd tsim tawm txawv ntawm ib tus neeg mus rau ib tus neeg.
- Yog tias koj tsim melanin tsawg dhau: Koj cov tawv nqaij, plaub hau, thiab qhov muag yuav dawb heev.
- Yog koj tsim cov melanin ntau dhau: Koj cov tawv nqaij, cov plaub hau, thiab qhov muag yuav tsaus dua.
Koj cov noob caj ces kuj cuam tshuam rau qhov ntau npaum li cas melanin uas koj lub cev tsim tawm. Yog vim li ntawd koj cov xim tawv nqaij yuav raug txiav txim siab los ntawm koj niam thiab koj txiv cov xim tawv nqaij.
Yog li ntawd, qhov twg yog qhov melanin no hauv peb lub cev?
Cov hlwb uas tsim melanin tuaj yeem pom muaj nyob rau ntau qhov chaw hauv peb lub cev.
- Hauv txheej tob tshaj plaws ntawm peb daim tawv nqaij
- Hauv qee qhov ntawm lub qhov muag xws li lub qhov muag menyuam thiab iris
- Hauv peb cov plaub hau
- Hauv qee qhov ntawm pob ntseg sab hauv
- Hauv qee qhov chaw ntawm lub hlwb thiab cov qog adrenal
Cov hom melanin tseem ceeb yog dab tsi?
Muaj peb hom melanin tseem ceeb hauv peb lub cev. Thaum koj paub me ntsis txog cov no, koj yuav nkag siab qhov zais cia ntawm peb cov xim.
| Hom melanin | Kev piav qhia thiab kev ua haujlwm |
|---|
| Eumelanin | Qhov no yog qhov ua rau peb daim tawv nqaij, plaub hau, thiab qhov muag lawv cov xim tsaus . Muaj ob hom ntawm qhov no, xim av thiab dub. Yog tias koj cov plaub hau dub, nws yog qhov tshwm sim ntawm kev sib xyaw ntawm cov xim dub thiab xim av eumelanin .Cov plaub hau daj yog tsim los ntawm me ntsis ntawm cov xim av eumelanin thiab tsis muaj cov dub eumelanin. Hom no pab tau zoo tshaj plaws hauv kev tiv thaiv daim tawv nqaij ntawm lub hnub. |
| Pheomelanin | Hom no muab xim rau cov xim liab ntawm peb lub cev, xws li daim di ncauj thiab lub txiv mis. Koj puas tau pom cov neeg uas muaj plaub hau liab? Lawv muaj cov pheomelanin thiab eumelanin sib npaug. Txawm li cas los xij, hom no tsis tiv thaiv daim tawv nqaij ntawm lub hnub zoo li eumelanin. |
| Neuromelanin | Qhov no tsis muaj feem cuam tshuam dab tsi rau peb qhov tsos. Nws yog hais txog kev tswj cov xim ntawm cov neurons hauv peb lub hlwb. |
Cov txiaj ntsig ntawm melanin rau peb lub cev
Melanin tsis yog ib yam xim xwb. Nws ua haujlwm ua tus tiv thaiv peb lub cev.
- Kev Tiv Thaiv Los Ntawm Cov Hluav Taws Xob UV : Melanin pab tiv thaiv peb daim tawv nqaij los ntawm cov hluav taws xob ultraviolet (UVA, UVB, UVC) uas los ntawm lub hnub ci hnyav zoo li hauv peb lub tebchaws. Melanin nqus cov hluav taws xob no thiab tawg lawv mus rau hauv txheej sab saud ntawm daim tawv nqaij. Tom qab ntawd, cov hluav taws xob ntawd tsis nkag mus tob dua rau hauv daim tawv nqaij thiab ua rau puas tsuaj.
- Kev Tiv Thaiv Los Ntawm Cov Tshuaj Oxygen Reactive Oxygen Species (ROS): Cov no yog cov khoom me me uas tsim tawm thaum lub sijhawm ua haujlwm ib txwm ntawm peb cov hlwb. Thaum cov no sib sau ua ke hauv lub cev, lawv tuaj yeem ua rau muaj kab mob xws li kev laus ua ntej lub sijhawm, kev ntxhov siab , ntshav qab zib , thiab mob qog noj ntshav. Melanin nrhiav cov khoom me me no thiab rhuav tshem lawv ua ntej lawv tuaj yeem ua rau muaj kev phom sij.
Cov neeg uas muaj daim tawv nqaij dub puas xav tau tshuaj pleev thaiv hnub thiab?
Qhov no yog ib qho kev nkag siab yuam kev loj heev ntawm ntau tus neeg.
Muaj coob tus neeg xav tias yog koj muaj daim tawv nqaij dub, koj tsis tas yuav siv tshuaj pleev thaiv hnub los tiv thaiv koj tus kheej ntawm lub hnub vim tias koj muaj melanin ntau dua. Tab sis qhov ntawd yog lub tswv yim tsis raug kiag li.
Qhov tseeb yog, txawm tias koj daim tawv nqaij tsaus npaum li cas los xij, qhov kev tiv thaiv hnub siab tshaj plaws uas koj cov melanin muab yog li SPF 13. Tab sis cov kws kho mob tawv nqaij pom zoo kom peb txhua tus siv tshuaj pleev thaiv hnub nrog tsawg kawg SPF 15. Lwm qhov kev nkag siab yuam kev yog tias cov neeg uas muaj daim tawv nqaij tsaus tsis muaj mob qog nqaij tawv. Qhov ntawd kuj tsis yog. Kev tshawb fawb tau qhia tias thaum cov neeg tawv nqaij tsaus tsis tshua muaj mob qog nqaij tawv dua li cov neeg tawv nqaij dawb, tus kab mob feem ntau nce siab dua thaum nws raug kuaj pom. Tsis tas li ntawd, mob qog nqaij tawv ntawm cov neeg tawv nqaij tsaus feem ntau tshwm sim hauv thaj chaw uas tsis raug tshav ntuj, xws li xib teg ntawm koj txhais tes thiab ko taw ntawm koj txhais taw. Yog li ntawd,
txawm tias koj daim tawv nqaij xim li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum hnav tshuaj pleev thaiv hnub txhua hnub thiab kom kws kho mob tawv nqaij kuaj koj daim tawv nqaij tsawg kawg ib xyoos ib zaug. Tshwj xeeb tshaj yog tias koj pom muaj cov pob tshiab, pob, lossis kev hloov pauv hauv koj daim tawv nqaij, mus ntsib kws kho mob.
Cov kab mob cuam tshuam nrog melanin
Teeb meem nrog kev tsim melanin tuaj yeem ua rau muaj ntau yam mob ntawm daim tawv nqaij.
Kab mob Albinism
Qhov no yog ib qho mob tsis tshua muaj uas tshwm sim los ntawm qhov melanin tsawg heev. Cov neeg no muaj plaub hau dawb, qhov muag xiav, thiab daim tawv nqaij dawb heev. Lawv kuj tseem yuav muaj teeb meem pom kev. Lawv yuav tsum siv tshuaj pleev thaiv hnub kom tiv thaiv kev puas tsuaj los ntawm lub hnub. Tsis muaj kev kho mob tshwj xeeb rau qhov no.
Melasma
Qhov no yog ib qho mob uas muaj cov xim av tshwm sim rau ntawm lub ntsej muag.
Nws ntseeg tau tias yog los ntawm cov tshuaj hormones, tshuaj tswj kev yug menyuam, thiab kev raug tshav ntuj. Nws tuaj yeem tswj tau nrog cov khoom xws li tshuaj pleev thaiv hnub, tshuaj pleev uas tau sau ntawv yuav, thiab kev kho mob laser.
Vitiligo
Qhov no yog ib qho mob uas muaj cov pob dawb tshwm sim rau ntawm daim tawv nqaij vim yog kev puas tsuaj ntawm cov hlwb melanocyte. Raws li peb txhua tus paub, tsis muaj kev kho mob tshwj xeeb rau qhov no, tab sis muaj kev kho mob xws li tshuaj pleev, kev kho mob UV, thiab kev phais.
Poob ntawm pigmentation tom qab daim tawv nqaij raug mob
Qee zaum lub cev tsis muaj peev xwm tsim cov melanin dua hauv cov cheeb tsam uas raug kub hnyiab, ua pob liab, lossis kis kab mob. Qhov no tsis tas yuav kho, tab sis koj tuaj yeem pleev xim rau nws yog tias nws tsis xis nyob rau koj.
Kab mob Parkinson
Hauv tus kab mob no, qhov ntau ntawm neuromelanin hauv lub hlwb txo qis thaum cov hlwb hlwb raug rhuav tshem.
Puas Melanin Ntau Ntxiv? - Cia peb ceev faj txog cov kev tshaj tawm uas muaj kev pheej hmoo
Muaj cov tshuaj uas kws kho mob sau ntawv kom siv thiab cov kev kho mob tshwj xeeb uas siv lub teeb UV uas tuaj yeem ua rau cov tawv nqaij tsim cov melanin rau cov neeg uas muaj mob xws li vitiligo. Txawm li cas los xij, koj
yuav tsum ceev faj nrog qee cov khoom lag luam hauv khw. Muaj ntau yam tshuaj ntxiv, tshuaj ntsiav, thiab tshuaj txhaj hauv khw uas hais tias ua rau tawv nqaij dawb. Feem ntau ntawm cov no
tsis tau txais kev pom zoo los ntawm ib lub koom haum uas muaj npe nrov, thiab tsis muaj kev nyab xeeb lossis ua tau zoo.- Cov tshuaj pleev xim rau tanning:Cov no muaj cov xim zoo ib yam li beta-carotene, uas ua rau carrots muaj xim txiv kab ntxwv. Cov no tuaj yeem ua rau koj daim tawv nqaij muaj xim txiv kab ntxwv-xim av. Txawm li cas los xij, lawv tsis ua rau melanin ntau ntxiv. Tsis tas li ntawd, cov xim ntau no tuaj yeem ua rau lub qhov muag puas, teeb meem siab, thiab kab mob ntawm daim tawv nqaij .
- Kev txhaj tshuaj thiab tshuaj tsuag rau qhov ntswg: Cov no muaj cov tshuaj hu ua melanotan, uas tau hais tias yuav ua rau muaj melanin ntau ntxiv, tab sis tuaj yeem ua rau muaj kev phiv xws li xeev siab thiab ua rau muaj kev pheej hmoo ntawm mob qog nqaij hlav .
Yog li ntawd, yog tias koj muaj kev txhawj xeeb txog koj cov tawv nqaij lossis melanin tsim tawm, qhov zoo tshaj plaws thiab muaj kev nyab xeeb tshaj plaws yog sab laj nrog kws kho mob tsim nyog es tsis txhob siv cov khoom tsis tau lees paub muaj nyob hauv khw.
Cov Lus Qhia Txog Kev Coj Mus Tsev
- Melanin yog ib qho xim ntuj uas muab xim rau peb daim tawv nqaij, plaub hau, thiab qhov muag.
- Qhov ntau ntawm melanin yog txiav txim los ntawm cov noob caj noob ces, thiab lub cev tsim ntau melanin thaum raug tshav ntuj.
- Txawm hais tias melanin muab qee qhov kev tiv thaiv los ntawm lub hnub lub teeb UV teeb meem, nws tsis yog kev tiv thaiv tag nrho.
- Txawm koj daim tawv nqaij zoo li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum siv tshuaj pleev thaiv hnub uas muaj tsawg kawg yog SPF 15 txhua hnub.
- Muaj kev kho mob rau cov mob uas cuam tshuam nrog melanin xws li vitiligo thiab melasma. Yog tias koj pom muaj kev hloov pauv hauv koj daim tawv nqaij, mus ntsib kws kho mob tam sim ntawd.
- Tsis txhob siv cov tshuaj ntsiav, tshuaj txhaj, thiab lwm yam uas tsis tau kev pom zoo uas muaj nyob hauv khw uas hais tias hloov xim tawv nqaij. Lawv tuaj yeem ua rau muaj kev pheej hmoo loj rau kev noj qab haus huv.
Melanin, xim tawv nqaij, kab mob tawv nqaij, tshuaj pleev thaiv hnub, vitiligo, mob qog nqaij hlav tawv nqaij
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Tsis muaj lus teb tau muab tso tawm. Ntxiv koj cov lus tawm ntawm no thawj zaug.
Ntxiv koj cov lus