Kodi munayamba mwadzifunsapo kuti mtundu wa khungu lanu, mtundu wa tsitsi lanu, ndi mtundu wa maso anu zimasiyana bwanji? Anthu ena ali ndi khungu lakuda, ena ali ndi khungu lopepuka. Ena ali ndi tsitsi lakuda, ndipo ena ali ndi tsitsi lofiirira. Kodi n’chiyani chimayambitsa kusiyana kwa mitundu kumeneku? Chinthu chachikulu chomwe chimayambitsa zonsezi chimatchedwa "melanin." Lero, tikambirana za chinthu chodabwitsachi m’thupi lathu chotchedwa melanin.
Kodi melanin kwenikweni ndi chiyani?
Mwachidule, melanin ndi utoto womwe umapezeka mwachibadwa m'matupi athu. Ndi chinthu chomwe chimapereka mtundu ku khungu lathu, tsitsi, ndi maso. Umapangidwa ndi mtundu wapadera wa selo m'matupi athu wotchedwa "melanocytes." Chodabwitsa n'chakuti tonsefe tili ndi chiwerengero chofanana cha maselo a melanocyte m'matupi athu. Komabe, kuchuluka kwa melanin komwe kumapangidwa ndi maselo amenewo kumasiyana malinga ndi munthu aliyense.
- Ngati mupanga melanin yochepa kwambiri: Khungu lanu, tsitsi lanu, ndi maso anu zingakhale zopepuka kwambiri.
- Ngati mupanga melanin yochuluka: Khungu lanu, tsitsi lanu, ndi maso anu zidzakhala zakuda kwambiri.
Majini anu amakhudzanso kuchuluka kwa melanin yomwe thupi lanu limapanga. Ichi ndichifukwa chake mtundu wa khungu lanu mwina umadalira mtundu wa khungu la amayi anu ndi abambo anu.
Ndiye kodi melanin iyi ili kuti m'thupi lathu?
Maselo omwe amapanga melanin amapezeka m'malo angapo m'thupi lathu.
- Mu khungu lathu lozama kwambiri
- M'mbali zina za diso monga pupil ndi iris
- Mu tsitsi lathu
- M'mbali zina za khutu lamkati
- M'madera ena a ubongo ndi adrenal glands
Kodi mitundu ikuluikulu ya melanin ndi iti?
Pali mitundu itatu ikuluikulu ya melanin m'thupi lathu. Mukadziwa pang'ono za izi, mudzamvetsa chinsinsi cha mitundu yathu.
| Mtundu wa melanin | Kufotokozera ndi ntchito |
|---|
| Eumelanin | Izi ndi zomwe zimapatsa khungu lathu, tsitsi, ndi maso athu mitundu yawo yakuda . Pali mitundu iwiri ya izi, bulauni ndi wakuda. Ngati tsitsi lanu ndi lakuda, limachokera ku chisakanizo cha eumelanin wakuda ndi bulauni .Tsitsi lakuda limapangidwa ndi eumelanin wochepa wa bulauni komanso kusowa kwa eumelanin wakuda. Mtundu uwu ndi wothandiza kwambiri poteteza khungu ku dzuwa. |
| Pheomelanin | Mtundu uwu umapereka mtundu ku ziwalo za pinki za thupi lathu, monga milomo ndi nsonga za mabere. Kodi mwawaonapo anthu omwe ali ndi tsitsi lofiira? Ali ndi kuchuluka kofanana kwa pheomelanin ndi eumelanin. Komabe, mtundu uwu suteteza khungu ku dzuwa komanso eumelanin. |
| Neuromelanin | Izi sizikugwirizana ndi maonekedwe athu. Zimalamulira mtundu wa ma neuron muubongo wathu. |
Ubwino wa melanin m'thupi lathu
Melanin si utoto wokha, imagwira ntchito ngati chitetezo cha thupi lathu.
- Chitetezo ku kuwala kwa UV : Melanin imathandiza kuteteza khungu lathu ku kuwala koopsa kwa ultraviolet (UVA, UVB, UVC) komwe kumachokera ku dzuwa loopsa monga momwe zilili m'dziko lathu. Melanin imayamwa kuwala kumeneku ndikukufalitsa pamwamba pa khungu. Kenako, kuwalako kumasiya kulowa mkati mwa khungu ndikuwononga.
- Chitetezo ku Mitundu ya Oxygen Yogwira Ntchito (ROS): Izi ndi tinthu toopsa tomwe timapangidwa nthawi zonse m'maselo athu. Tinthuti tikamasonkhana m'thupi, tingayambitse matenda monga kukalamba msanga, kupsinjika maganizo , matenda a shuga , ndi khansa. Melanin imafufuza tinthu toopsati ndi kuziwononga tisanavulaze.
Kodi anthu omwe ali ndi khungu lakuda amafunikanso mafuta oteteza ku dzuwa?
Izi ndi malingaliro olakwika pakati pa anthu ambiri.
Anthu ambiri amaganiza kuti ngati muli ndi khungu lakuda, simufunika mafuta oteteza ku dzuwa kuti mudziteteze ku dzuwa chifukwa muli ndi melanin yambiri. Koma lingaliro limenelo ndi lolakwika kwambiri.
Zoona zake n'zakuti, ngakhale khungu lanu litakhala lakuda bwanji, chitetezo chachikulu cha dzuwa chomwe melanin imapereka ndi pafupifupi SPF 13. Koma madokotala a khungu amalimbikitsa kuti tonse tigwiritse ntchito mafuta oteteza ku dzuwa omwe ali ndi SPF 15. Lingaliro lina lolakwika ndilakuti anthu omwe ali ndi khungu lakuda sadwala khansa ya pakhungu. Zimenezo n'zolakwikanso. Kafukufuku wasonyeza kuti ngakhale anthu a khungu lakuda sadwala khansa ya pakhungu poyerekeza ndi anthu a khungu loyera, matendawa nthawi zambiri amakhala ochulukirapo akapezeka. Komanso, khansa ya pakhungu mwa anthu a khungu lakuda imakonda kufalikira m'malo omwe sakhudzidwa ndi dzuwa, monga m'manja mwanu ndi m'mapazi anu. Chifukwa chake,
mosasamala kanthu za mtundu wa khungu lanu, ndikofunikira kuvala mafuta oteteza ku dzuwa tsiku lililonse ndikuwunikidwa ndi dokotala wa khungu kamodzi pachaka. Makamaka ngati muwona mawanga atsopano, zotupa, kapena kusintha pakhungu lanu, pitani kwa dokotala.
Matenda okhudzana ndi melanin
Mavuto okhudzana ndi kupanga melanin angayambitse matenda osiyanasiyana a khungu.
Ulubino
Imeneyi ndi vuto losowa lomwe limayamba chifukwa cha kuchuluka kochepa kwa melanin. Anthuwa ali ndi tsitsi loyera, maso abuluu, komanso khungu loyera kwambiri. Angakhalenso ndi mavuto a maso. Ayenera kugwiritsa ntchito mafuta oteteza ku dzuwa kuti asawonongeke ndi dzuwa. Palibe mankhwala enieni a izi.
Melasma
Imeneyi ndi vuto lomwe mawanga a bulauni amaonekera pankhope.
Amakhulupirira kuti limayambitsidwa ndi mahomoni, mapiritsi oletsa kubereka, komanso kukhudzana ndi dzuwa. Lingathe kuthetsedwa ndi zinthu monga mafuta oteteza ku dzuwa, mafuta odzola, ndi mankhwala a laser.
Vitiligo
Imeneyi ndi vuto lomwe mawanga oyera amaonekera pakhungu chifukwa cha kuwonongeka kwa maselo a melanocyte. Monga tonse tikudziwira, palibe mankhwala enieni a izi, koma pali mankhwala monga mafuta odzola, chithandizo cha kuwala kwa UV, ndi opaleshoni.
Kutayika kwa utoto pambuyo pa kuwonongeka kwa khungu
Nthawi zina thupi silingathe kupanga melanin kachiwiri m'malo omwe apsa, otupa, kapena omwe ali ndi kachilomboka. Izi sizifuna chithandizo, koma mutha kuzipaka ndi zodzoladzola ngati sizikukusangalatsani.
Matenda a Parkinson
Mu matendawa, kuchuluka kwa neuromelanin muubongo kumachepa pamene maselo a ubongo akuwonongeka.
Kodi Melanin Ingachuluke? - Tiyeni tidziwe za malonda oopsa
Pali mankhwala operekedwa ndi dokotala komanso mankhwala apadera a UV omwe angathandize kupanga melanin pakhungu kwa anthu omwe ali ndi matenda monga vitiligo. Komabe,
muyenera kusamala kwambiri ndi zina mwa zinthu zomwe zili pamsika. Pali zowonjezera zosiyanasiyana, mapiritsi, ndi jakisoni pamsika zomwe zimati zimayeretsa khungu. Zambiri mwa izi
sizivomerezedwa ndi bungwe lililonse lodziwika bwino, ndipo sizotetezeka kapena zothandiza.- Mapiritsi opaka khungu:Izi zili ndi utoto wambiri wofanana ndi beta-carotene, womwe umapatsa kaloti utoto wawo wa lalanje. Izi zingapangitse khungu lanu kukhala lalanje-bulauni. Komabe, sizimawonjezera melanin. Komanso, utoto wambiriwu ungayambitse kuwonongeka kwa maso, mavuto a chiwindi, komanso matenda a pakhungu .
- Majakisoni ndi ma spray a m'mphuno: Izi zili ndi mankhwala otchedwa melanotan, omwe amati amawonjezera kupanga melanin, koma angayambitse zotsatirapo zoyipa monga nseru komanso kuwonjezera chiopsezo cha khansa ya pakhungu .
Chifukwa chake, ngati muli ndi nkhawa iliyonse yokhudza khungu lanu kapena kupanga melanin, chinthu chabwino komanso chotetezeka kuchita ndikufunsa dokotala wodziwa bwino ntchito m'malo mogwiritsa ntchito zinthu zosatsimikizika zomwe zilipo pamsika.
Uthenga Wopita Nawo Kunyumba
- Melanin ndi utoto wachilengedwe womwe umapatsa khungu, tsitsi, ndi maso athu mtundu.
- Kuchuluka kwa melanin kumatsimikiziridwa ndi majini, ndipo thupi limapanga melanin yambiri likakumana ndi dzuwa.
- Ngakhale melanin imateteza khungu ku kuwala koipa kwa UV, si chitetezo chokwanira.
- Kaya khungu lanu ndi lotani, ndikofunikira kugwiritsa ntchito mafuta oteteza ku dzuwa omwe ali ndi SPF 15 patsiku.
- Pali chithandizo chamankhwala cha matenda okhudzana ndi melanin monga vitiligo ndi melasma. Ngati muwona kusintha kulikonse pakhungu lanu, pitani kwa dokotala nthawi yomweyo.
- Pewani kugwiritsa ntchito mapiritsi, jakisoni, ndi zina zotero zomwe zimapezeka pamsika zomwe zimati zimasintha mtundu wa khungu. Zingayambitse mavuto aakulu pa thanzi.
Melanin, mtundu wa khungu, matenda a khungu, sunscreen, vitiligo, khansa ya pakhungu
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