Contents
- ʻO ka gene freckle i nīnau ʻia
- He aha ka mea e hoʻoholo ai i ka ʻulaʻula o ka lauoho?
- Hiki paha ke wānana i nā freckles o ka pēpē?
- No ke aha he ʻulaʻula liʻiliʻi?
- E pale i ke olakino o nā pēpē ʻulaʻula
- Pepe ʻulaʻula: e makaʻala i ka lā!
- He loulou me ka maʻi o Parkinson?
- ʻO nā poʻo ʻulaʻula, emi iki ka ʻeha
ʻO ka gene freckle i nīnau ʻia
Ua hoʻomohala hou nā mea noiʻi Pelekania i kahi hoʻāʻo DNA e ʻike i ka ʻano freckle i mea e wānana ai i ka loaʻa ʻana o kahi ʻulaʻula liʻiliʻi. Akā hiki iā mākou ke ʻike maoli i ke kala lauoho o kā mākou pēpē e hiki mai ana? No ke aha kēia ʻano malu loa? Ua hoʻomālamalama ʻo Professor Nadem Soufir, geneticist ma André Bichat hospital iā mākou ...
He aha ka mea e hoʻoholo ai i ka ʻulaʻula o ka lauoho?
Kāhea ʻia ʻo MCR1 i loko o nā huaʻōlelo ʻepekema, ʻo kēia gene ke ao holoʻokoʻa. Eia naʻe, ʻo ka lauoho ʻulaʻula ka hopena o kahi hoʻonohonoho o nā ʻano like ʻole ka hopena i nā hoʻololi. ʻO ka mea maʻamau, ʻo ka MCR1 gene, ʻo ia ka mea e loaʻa ai, e hoʻomalu i nā melanocytes, ʻo ia hoʻi, nā pūnaewele e puaʻa i ka lauoho. Hana kēia mau pūnana i ka melanin ʻeleʻele, ʻo ia ke kuleana o ka tanning. Akā inā loaʻa nā ʻano like ʻole (he mau kakini), ʻoi aku ka maikaʻi o ka loaʻa MCR1 a noi i nā melanocytes e hana i ka melanin he melemele-alani ke kala. Kapa ʻia kēia he pheomelanin.
Pono eʻike : ʻOiai inā lawe lākou i ka MCR1 gene, ʻaʻohe ʻano ʻokoʻa ka poʻe o ka ʻano ʻApelika. ʻAʻole hiki iā lākou ke lilo i ʻulaʻula. Hoʻopili pili ʻia nā hoʻololi kūlohelohe kanaka i kona kaiapuni. ʻO ia ke kumu o ka poʻe ʻeleʻele, e noho ana ma nā wahi me ka lā ikaika, ʻaʻohe ʻano MC1R. Aia kahi koho counter, nāna i ālai i ka hana ʻana o kēia mau ʻano like ʻole i mea ʻawaʻawa loa iā lākou.
Hiki paha ke wānana i nā freckles o ka pēpē?
I kēia lā, ma mua o ka hāpai ʻana, noʻonoʻo nā mākua i ka wā e hiki mai ana i ke kino o kā lākou keiki. He aha kona ihu, pehea kona waha? A ua hoʻomohala hou nā mea noiʻi Pelekania i kahi hoʻāʻo DNA e ʻike i ka ʻano freckle, ʻoi aku ka nui o nā makuahine hāpai i mea e wānana ai i ka loaʻa ʻana o kahi ʻulaʻula liʻiliʻi a hoʻomākaukau no lākou. nā ʻano lāʻau lapaʻau o kēia mau keiki. A no ke kumu maikaʻi, hiki iā ʻoe ke lawe i kēia ʻano, me ka ʻulaʻula ʻole ʻoe. Eia nō naʻe, ʻo ka geneticist ʻo Nadem Soufir he categorical: he mea lapuwale kēia hoʻokolokolo. "No ka ʻulaʻula, pono ʻoe e loaʻa i ʻelua mau ʻano ʻano RHC (ulaʻula lauoho). Inā ʻulaʻula nā mākua ʻelua, ʻike ʻia, pēlā nō ka pēpē. Hiki i ʻelua poʻe ʻeleʻele ke loaʻa kahi keiki ʻulaʻula, inā he ʻano RHC kēlā me kēia, akā ʻo 25% wale nō. Eia kekahi, ʻo ke keiki o kahi mestizo a i ʻole Creole a me kahi kanaka o ka ʻano Caucasian hiki ke ʻulaʻula. "He paʻakikī ka genetics o ka pigmentation, he nui nā kumu, ʻaʻole mākou i ʻike i kēia manawa, komo i ka pāʻani." Ma waho aʻe o ka nīnau o ka hilinaʻi, kaHoʻopiʻi ka geneticist i kahi pilikia etika: koho ʻana i ka ʻōpū.
I ko lākou ulu ʻana, hoʻololi ka lauoho o ka pēpē i kekahi manawa. Nānā pū mākou i nā loli i ka wā o ka hoʻololi ʻana i ka wā ʻōpio, a laila i ka wā makua. Hoʻopili nui ʻia kēia mau hoʻololi i ka pilina me ke kaiapuni. No ka laʻana, i ka lā, lilo ka lauoho i blond. Hiki i nā keiki lauoho ʻulaʻula ke pōʻeleʻele i ko lākou ulu ʻana, akā mau ke kala.
No ke aha he ʻulaʻula liʻiliʻi?
Inā mākou e lawe i ka ʻano freckle, he mea kahaha loa ia ʻO 5% wale nō o ka poʻe Palani he ʻulaʻula. Eia kekahi, mai ka makahiki 2011, ʻaʻole ʻae hou ka waihona sperm Danish Cryos i nā mea hāʻawi ʻulaʻula, ʻoi aku ka kiʻekiʻe o ka lako e pili ana i ka noi. ʻO ka hapa nui o ka poʻe i loaʻa mai Helene, Italia a i Sepania a plebiscite i nā mea hāʻawi brown. Eia naʻe, ʻaʻole i pau ka nalo ʻana o nā ʻulaʻula, e like me ka neʻe ʻana o kekahi mau lono. "ʻO kā lākou haʻahaʻa haʻahaʻa e pili nui ana i ka hui ʻana o nā heluna. Ma Farani, kaka poʻe o ʻApelika, ʻApelika ʻĀkau, ʻaʻohe a liʻiliʻi paha nā ʻano MC1R, ua nui loa. Eia naʻe, loaʻa nā ʻulaʻula ma kekahi mau wahi, e like me Brittany kahi i paʻa mau ai ko lākou helu. "Ke nānā nei mākou i kahi ʻulaʻula ma kahi kokoke i ka palena ʻo Lorraine a me Alsatian," wehewehe ʻo Kauka Soufir. Eia kekahi, aia kahi palette ʻulaʻula holoʻokoʻa, mai ka auburn a i ka chestnut ʻeleʻele. Eia kekahi, ʻo ka poʻe i kapa iā lākou iho ʻo Venetian blond he mau ʻulaʻula i nānā ʻole kekahi i kekahi ".
Me 13% ʻulaʻula i loko o kona heluna kanaka, paʻa ʻo Scotland i ka moʻolelo no nā ʻulaʻula. He 10% lākou ma ʻIlelani.
E pale i ke olakino o nā pēpē ʻulaʻula
Pepe ʻulaʻula: e makaʻala i ka lā!
ʻO ka pale lā, hele i waho i ka malu, pāpale… i ke kauwela, hoʻokahi ʻōlelo kiaʻi: pale i ka wehe ʻana i ka pēpē i ka lā. Pono nā mākua me nā keiki ʻulaʻula e makaʻala. A no ke kumu maikaʻi, i ka wā makua, ʻoi aku ka nui o ka hopena i ka maʻi maʻi ʻili, no laila ke koʻikoʻi o ka pale ʻana iā lākou, mai ka wā kamaliʻi, mai nā kukuna ultraviolet.
No ko lākou ʻāpana, he ʻokoʻa ka pigmentation ʻē aʻe o ka poʻe Asia, a he liʻiliʻi loa nā ʻano like ʻole. No laila ʻaʻole hiki iā lākou ke hoʻomohala i ka melanoma. Pono nā Métis a i ʻole Creoles me nā freckles e makaʻala i ka lā, ʻoiai inā ʻoi aku ka maikaʻi o ka "pale ʻia mai ka lā ma mua o nā keʻokeʻo".
ʻOiai ʻo ka poʻe ʻulaʻula i manaʻo ʻia e hoʻopaʻa i kekahi mau maʻi maʻi a ʻike i ka ʻelemakule ma mua o ka ʻili, wehewehe ka geneticist "ʻo kahi genetic factor e pōʻino i kekahi manawa he hopena maikaʻi nō hoʻi". ʻOiaʻiʻo, kaʻOi aku ka maʻalahi o ka poʻe me nā ʻano like ʻole MC1R e hopu i ka radiation ultraviolet ma nā latitu kiʻekiʻe, mea nui no ka huaora D. "E hiki ke wehewehe i ke kumu, e like me ke kumu kaulana o ke koho kūlohelohe, ʻo Neanderthals, i loaʻa ma ʻEulopa Hikina, ua loaʻa i ka lauoho ʻulaʻula.
He loulou me ka maʻi o Parkinson?
Ua ʻōlelo ʻia kekahi loulou ma waena o ka maʻi Parkinson a me ka ʻulaʻula. Eia naʻe, mālama ʻo Nadem Soufir: "ʻaʻole i hōʻoia ʻia kēia. Ma ka lima 'ē aʻe, aia kahi hui epidemiological ma waena o kēia maʻi a me ka melanoma. ʻO ka poʻe i loaʻa i kēia ʻano o ka maʻi maʻi ʻili he 2 a 3 mau manawa ke loaʻa i ka maʻi Parkinson. A ʻo ka poʻe e hoʻomohala nei i kēia maʻi, ʻoi aku ka nui o ka pilikia o ka ulu ʻana i ka melanoma. He ʻoiaʻiʻo nō nā loulou akā ʻaʻole pono ia e hele i ka gene MC1R ". Eia kekahi, ʻaʻohe pilina ma waena o nā freckles a me ka albinism. Ma kēia mea, "ua hōʻike ʻia kahi noiʻi hou i hana ʻia i loko o ke keʻena hana ʻaʻole e ulu nā ʻiole albino i ka melanoma, ʻoiai ka nele o ka puaʻa i ka ʻili, ʻaʻole like me nā ʻiole ʻulaʻula. “
ʻO nā poʻo ʻulaʻula, emi iki ka ʻeha
ʻO nā ʻulaʻula hiki ʻole ke lanakila? Ua aneane hiki iā ʻoe ke manaʻoʻiʻo! ʻOiaʻiʻo, ua hōʻike ʻia ka gene MC1R i loko o ka ʻōnaehana pale a me ka hāʻawi ʻana i ka ʻōnaehana nerve waena ʻO ka pōmaikaʻi i nā ʻulaʻula ʻoi aku ka pale ʻana i ka ʻeha.
ʻO kekahi pōmaikaʻi nui: hoʻopiʻi wahine. ʻOi aku ka maikaʻi o ka poʻe ʻulaʻula… nani.
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