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Video: Dab tsi yog hom albinism?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Muaj ntau ntau hom albinism , tab sis lo lus feem ntau yog hais txog ob: oculocutaneous albinism (OCA) thiab qhov muag albinism . Muaj peb leeg hom ntawm OCA uas raug xa mus rau OCA hom 1, OCA hom 2, thiab OCA hom 3.
Hais txog qhov no, 4 hom albinism yog dab tsi?
Txog rau hnub tim ntau li xya daim ntawv ntawm oculocutaneous albinism tam sim no tau lees paub - OCA1, OCA2, OCA3, OCA4, OCA5, OCA6 thiab OCA7. Qee qhov ntxiv muab faib ua subtypes. OCA1, lossis tyrosinase-ntsig txog albinism, tshwm sim los ntawm kev tshuaj ntsuam tsis zoo hauv ib qho enzyme hu ua tyrosinase.
Tsis tas li ntawd, 2 albinos puas tuaj yeem muaj tus menyuam ib txwm muaj? Vim albinism khiav hauv koj tus poj niam tsev neeg, koj cov menyuam yuav muaj kev pheej hmoo siab dua albinism . Thiab tom qab ntawd ntxiv, lawv yuav tsis yog. Txhua yam nyob ntawm seb koj thiab koj tus poj niam nqa ib qho albinism noob. Yog koj ob leeg ua , ces cwb tus me nyuam muaj ib 1in 4o muaj albinism.
Hauv no, hom albinism feem ntau yog dab tsi?
Oculocutaneous albinism (OCA), ua feem ntau hom , txhais tau tias ib tus neeg tau txais ob daim qauv ntawm cov noob uas tau hloov pauv - ib tus los ntawm txhua tus niam txiv (autosomal recessive inheritance).
Dab tsi gene cuam tshuam los ntawm albinism?
Ocular albinism yog qhov tshwm sim ntawm noob neej kev hloov pauv ntawm X chromosome thiab tshwm sim yuav luag tshwj xeeb rau cov txiv neej. Hom albinism no tsuas yog cuam tshuam rau lub qhov muag. Cov neeg uas muaj hom no muaj cov plaub hau ib txwm, tawv nqaij, thiab pleev xim rau lub qhov muag, tab sis tsis muaj xim hauv lub qhov muag (sab nraub qaum ntawm lub qhov muag).
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Hauv lub tshuab tsom me me, kev tso roj yog txheej txheem siv txhawm rau txhawm rau daws qhov teeb meem ntawm lub tsom iav. Qhov no yog ua tiav los ntawm kev raus ob lub hom phiaj tsom iav thiab cov hnoos qeev hauv cov roj pob tshab ntawm qhov ntsuas siab refractive, yog li ua kom cov zauv zauv ntawm lub hom phiaj tsom iav
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Txog niaj hnub no ntau li xya daim ntawv ntawm oculocutaneous albinism tam sim no tau lees paub - OCA1, OCA2, OCA3, OCA4, OCA5, OCA6 thiab OCA7. Qee qhov ntxiv muab faib ua subtypes. OCA1, lossis tyrosinase-ntsig txog albinism, tshwm sim los ntawm kev tshuaj ntsuam tsis zoo hauv ib qho enzyme hu ua tyrosinase