Mutane masu launin gashi suna iya rayuwa sosai idan sun koyi gaskiya game da kwayoyin halittar su ...
Mutum yana da haɓaka da ra'ayin matasa na har abada, amma har yanzu ba a iya yiwuwa a sami bayani game da dalilin da ya sa a lokaci ɗaya da iri ɗaya duk mutane sun bambanta ba. Mafi yawancin lokuta, bayyanar matasa da kyakkyawan lafiyar a cikin shekarun 50 zuwa 60 suna bayanin barci mai kyau da abinci mai gina jiki mai kyau, amma wannan ba gaskiya bane. Akwai misalan mutane da yawa waɗanda ke da halaye masu halayyar da kuma aiki mai mahimmanci ya zama dogon lokaci. To, mece ce asirin matasa? Masana kimiyya sun sami amsoshin wannan tambaya: shine a cikin abin da ake kira "red" gene.
Mene ne nau'in "ja"?
Ci gaba da fahimtar dalilin da yasa wasu mutane ke gudanar da su duba duk hanya har ma da tsufa, masana kimiyya sun samu ta hanyar nazarin DNA. A cikin tsarin kwayoyin kowannensu, an tsara nauyin MC1R, wanda ke da alhakin kare jiki daga radiation ultraviolet. Wannan shine radiation wanda ya haifar da tsufa da fata: bayyanar wrinkles, bushewa da pigmentation spots. MC1R yana rage mummunan cutar ga epidermis, saboda haka canjin launin fata na waje ya bayyana a cikin mutane kusan 50, kuma ba zuwa shekaru 10 ba. Sakamakon mamaki na wannan jinsin shine ga masana kimiyya a Jami'ar Erasmus a Netherlands.
A wani ɓangare na binciken su, likitoci sun ɗauki gwajin DNA a cikin mutane 2,693 kuma sun gudanar da nazarin fata na fata don gano idan sun kasance sun fi girma fiye da shekarunsu. A cikin jerin jinsin wadanda wadanda fata basu so su bi dokoki na tsufa, kuma an gano MC1R. Irin wannan nau'in yana da alhakin launin gashi mai launin gashi - wannan shine dalilin da ya sa aka kira shi "jan" jan.
Yaya matasa ya dogara ne akan irin launi?
Shin hakan yana nufin cewa mutane masu launin launin fata da kullun suna kallon mafi kyau fiye da 'yan uwansu? Shakka, a. Yanayin fata su akalla shekaru biyu "lags" a cikin tsufa daga launin fata da launin fata. Lokacin da ya fito, wakilan Jami'ar sun yanke shawarar ci gaba da bincike don gano abin da zai zama tsofaffiyar mutane da launin gashi da fata ba tare da kullun ba.
Farfesa Ian Jackson ya iya tabbatar da kimiyyar kimiyya cewa mutane tare da kodadde pigmentation da launin launi mai haske zai fi kyau a tsufa fiye da launin fata. Ya kamata su yi launin shuɗi, launin toka ko idanu don su cika cikakkiyar launi. Wannan masana kimiyyar binciken kwayoyin sun kira "gwaji na zamani."
Ian ya ce:
"Mataki na gaba shine ƙirƙirar wani abu da zai kunna wannan nau'in ga kowa da kowa, amma har yanzu ba a samuwa irin wannan ilimin ba."
Masu binciken ba su fahimci ka'idodin tsarin MC1R ba kuma suna "ware" shi daga jerin irin kwayoyin. Amma sun tabbata cewa nan da nan za su iya ƙirƙirar miyagun ƙwayoyi, bayan haka kowa zai yi kama da matasa da kyau.