Thaum koj saib hauv daim iav thiab pom ob peb tug plaub hau dawb, koj yuav ntxhov siab thiab tu siab me ntsis, puas yog? Yuav tsum muaj ntau zaus uas koj xav tias, "Auj, kuv laus lawm thiab." Rau qee tus neeg, lawv cov plaub hau pib dawb thaum lawv tseem hluas heev, qee zaum thaum lawv tseem kawm ntawv. Vim li cas qhov no thiaj tshwm sim tiag? Puas yog vim peb laus zuj zus xwb? Kev tshawb fawb kho mob tshiab kawg tau pom tias qhov no yuav yog vim muaj kev hloov pauv me me hauv peb lub cev uas tsis muaj leej twg ntawm peb tau xav txog.
Cov hlwb zoo kawg no uas muab xim rau cov plaub hau yog dab tsi?
Hais yooj yim xwb, koj cov plaub hau tau txais nws cov xim dub thiab xim av zoo nkauj vim muaj ib hom cell tshwj xeeb heev nyob rau hauv qab ntawm koj cov plaub hau. Peb hu cov pigment stem cells no, lossis hais meej dua "Melanocyte Stem Cells - McSCs". Cov no yog cov khoom tseem ceeb ntawm peb lub Hoobkas ua xim plaub hau.
Tiamsis cov noob hlwb no tsis tuaj yeem ua rau cov plaub hau xim ncaj qha. Yuav ua li ntawd, lawv yuav tsum tau loj hlob ua ntej thiab dhau los ua "melanocytes." Cov melanocytes no yog cov uas tsim cov xim uas muab nws cov xim rau cov plaub hau.
Yog li ntawd, qhov laj thawj uas koj cov plaub hau noj qab nyob zoo thiab dub yog vim cov hlwb no tau loj hlob zuj zus, dhau los ua cov hlwb xim, thiab ua lawv txoj haujlwm kom zoo. Qhov xav tsis thoob, cov hlwb xim no nyob tau ntau xyoo, tab sis lawv tuag ua ntej lwm cov hlwb uas ua rau cov plaub hau. Tej zaum koj yuav tau pom tias qee tus neeg tsis poob lawv cov plaub hau thaum lawv laus zuj zus, tab sis lawv cov plaub hau tau hloov dawb tag nrho. Nov yog vim li cas. Cov hlwb ntawm cov plaub hau tseem ua haujlwm, tab sis cov hlwb uas ua rau cov plaub hau tsis ua haujlwm lawm.
'stuck' txhais li cas? Qhov kev tshawb pom tshiab kawg!
Tau ntev heev lawm, cov kws kho mob thiab cov kws tshawb fawb xav tias cov noob hlwb no nyob hauv ib qho chaw, loj hlob thaum xav tau, thiab tom qab ntawd tuag thaum lawv ua tiav lawv txoj haujlwm. Tab sis kev tshawb fawb tshiab kawg tau hloov pauv zaj dab neeg no tag nrho.
Qhov tseeb tiag, qhov no yog ib yam uas nyuaj thiab xav tsis thoob dua. Cov hlwb no zoo li tus qav uas hloov xim. Qhov ntawd yog, lawv tuaj yeem txav mus los ntawm ntau qhov chaw ntawm cov plaub hau thiab hloov lawv tus cwj pwm, es tsis txhob nyob hauv ib qho chaw.
Raws li qhov kev tshawb pom tshiab no, cov hlwb no ua haujlwm ua voj voog. Ntawd yog:
1. Theem pib: Lawv pib ua cov hlwb tseem tsis tau loj hlob.
2. Kev Ua Haujlwm: Tom qab ntawd nws mus rau lwm qhov ntawm cov plaub hau, loj hlob, thiab tsim cov xim uas muab cov plaub hau nws cov xim.
3. Kev rov qab mus: Thaum ua tiav txoj haujlwm, cov hlwb ntawd rov qab mus rau lawv lub xeev qub, uas yog, lub xeev ntawm cov hlwb qia , thiab rov qab mus rau lawv qhov chaw qub.
Yog tias lub voj voog no txuas ntxiv mus, peb cov plaub hau yuav tau xim.
Yog li ntawd, qhov teeb meem nyob qhov twg?
Cov kws tshawb nrhiav tau pom tias thaum peb laus zuj zus, cov hlwb tseem ceeb no qee zaum yuav daig rau qhov chaw tsis raug hauv cov plaub hau. Lawv daig rau hauv ib feem ntawm cov plaub hau hu ua follicle bulge. Thaum lawv daig, lawv tsis tuaj yeem ua tiav lawv lub voj voog, uas txhais tau tias lawv tsis tuaj yeem loj hlob thiab mus rau qhov chaw uas lawv xav tau mus ua xim.
Qhov tshwm sim? Cov plaub hau tshiab tsis muaj xim. Yog li nws tawm los dawb lossis grey.
Cia peb piav qhia ntxiv me ntsis txog cov txheej txheem no.
| Txheej Txheem | Dab tsi ntxiv (tsuas yog) |
|---|---|
| Cov plaub hau hluas noj qab nyob zoo | Cov noob hlwb (McSCs) tsiv mus rau qhov chaw raug, loj hlob (ua melanocytes), thiab muab cov xim rau cov plaub hau. Tom qab ntawd lawv rov qab mus rau lawv lub xeev tseem ceeb. Lub voj voog no txuas ntxiv mus. |
| Thaum koj laus/thaum koj cov plaub hau dawb | Muaj ib co noob hlwb uas lo rau hauv ib feem ntawm cov plaub hau hu ua 'bulge'. Lawv tsis tuaj yeem txav mus ntxiv lossis loj hlob tuaj. |
| Qhov kawg tshwm sim | Vim tias tsis muaj cov cell los tsim cov xim, cov plaub hau tshiab uas loj hlob yog dawb lossis grey. |
Qhov no puas tseem qhia txog mob qog noj ntshav?
Yog. Qhov kev tshawb pom no yuav tseem ceeb tsis yog rau cov plaub hau dawb xwb, tab sis kuj tseem ceeb rau kev nkag siab txog mob qog nqaij hlav ntawm daim tawv nqaij . Tshwj xeeb, hom mob qog nqaij hlav loj tshaj plaws , melanoma , tsim los ntawm cov hlwb pigment (melanocytes).
Ib qho ntawm cov yam ntxwv txaus ntshai tshaj plaws ntawm cov hlwb mob qog noj ntshav melanoma yog lawv lub peev xwm hloov pauv lawv qhov xwm txheej tau yooj yim. Hauv kev kho mob, qhov no hu ua 'plasticity' . Lub peev xwm no yog vim li cas mob qog noj ntshav melanoma nyuaj rau tswj thiab kho kom zoo.
Daim kev tshawb fawb tshiab no qhia tau hais tias peb cov hlwb xim ib txwm muaj thiab noj qab nyob zoo kuj muaj qib siab ntawm 'plasticity'. Yog li, cov kws tshawb fawb tam sim no xav tias qhov kev coj cwj pwm txaus ntshai ntawm cov hlwb mob qog noj ntshav melanoma no tej zaum yuav yog vim qhov 'muaj peev xwm hloov pauv' hauv cov hlwb xim ib txwm muaj, uas lawv pib los ntawm.
Yog li ntawd puas yuav nrhiav tau kev kho rau qhov no?
Qhov no yog lo lus nug uas txhua tus neeg xav txog. Tam sim no cov txheej txheem 'tawg' tau raug tshawb pom lawm, lub hom phiaj tom ntej rau cov kws tshawb fawb yog nrhiav txoj hauv kev los tso cov hlwb uas raug daig no thiab xa lawv rov qab mus rau lawv qhov chaw zoo . Yog tias qhov ntawd ua tau, nws tuaj yeem tiv thaiv cov plaub hau kom tsis txhob tig dawb, thiab tej zaum yuav ua rau nws tsis tuaj yeem tig cov plaub hau dub dua.
Tiamsis qhov no tseem nyob rau theem kev tshawb fawb. Tseem tsis tau muaj kev kho rau qhov no. Txawm li cas los xij, muaj cov lus ceeb toom txog qee tus neeg uas cov plaub hau dawb tau rov qab los ua dawb dua vim yog cov tshuaj uas tau muab rau lwm yam kab mob. Tej zaum cov tshuaj ntawd tsis tau xav txog 'tso' cov hlwb no.
Peb kuj tseem yuav tsum tshawb nrhiav ntxiv seb tej yam xws li kev ntxhov siab thiab kev haus luam yeeb puas cuam tshuam rau qhov kev thaiv ntawm cov hlwb no, vim peb paub tias tej yam no cuam tshuam tsis zoo rau ntau yam txheej txheem hauv lub cev.
Cov Lus Qhia Txog Kev Coj Mus Tsev
- Qhov laj thawj tseem ceeb uas ua rau koj cov plaub hau dawb yog vim cov hlwb tshwj xeeb uas muab xim rau plaub hau, hu ua Melanocyte Stem Cells, 'nyob' rau qhov chaw tsis raug hauv cov plaub hau.
- Qhov no yog ib qho kev tshawb pom tshiab. Cov kws tshawb nrhiav tab tom sim nrhiav kev kho mob uas tuaj yeem tso cov hlwb no tawm thiab tiv thaiv cov plaub hau kom tsis txhob dawb.
- Tam sim no, tsis muaj tshuaj tshwj xeeb uas yuav tiv thaiv kom cov plaub hau tsis txhob hloov dawb. Ceev faj txog cov khoom muaj nyob hauv khw.
- Txog thaum muaj kev kho mob zoo, kev coj ua kom noj qab haus huv xws li noj zaub mov kom sib npaug, tsis txhob haus luam yeeb, thiab tswj kev ntxhov siab yuav pab tau koj txoj kev noj qab haus huv thiab kev noj qab haus huv ntawm koj cov plaub hau.
- Yog tias koj pom muaj kev hloov pauv sai sai hauv koj daim tawv nqaij lossis plaub hau (piv txwv li, cov pob tshiab, cov plaub hau daj sai), tsis txhob ntshai, tab sis mus ntsib koj tus kws kho mob kom tau lus qhia.
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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