Uburyo bwera bwa arbutin
Ibirimo no gukwirakwiza kwamelanin nibintu byingenzi byerekana uburebure bwamabara yuruhu. Melanin ikorerwa muri melanocytes murwego rwibanze rwa epidermis yuruhu. Amaherezo ikozwe muri tyrosine ikorwa na tyrosinase ikoresheje urukurikirane rwibinyabuzima bigoye. Iyimurwa kuva murwego rwibanze ikagera kumurongo winyuma wa epidermis kuva imbere binyuze muri synaps. Hindura uruhu.
Tyrosinase ifite ibikorwa bya hydroxylase ya tyrosine (itera tyrosine kugirango itange dopa) nigikorwa cya dopa oxydease (cataliza dopa kugirango itange dopaquinone). Muburyo bwo gushinga melanin, ikora nka enzyme nyamukuru igabanya igipimo. Igikorwa cyacyo kigena ingano ya melanine.
Arbutin ni inhibitori ya tyrosinase ishobora guhagarika neza ibikorwa bya tyrosinase bitagize ingaruka ku gukwirakwiza kwinshi kwa selile. Irushanwa guhuza dopa ikoresheje guhuza kwayo na tyrosinase. urubuga, guhagarika synthesis ya dopa na dopaquinone, bityo bikabangamira melanocytes no kubuza umusaruro wa melanin. Muri icyo gihe, ifite kandi umurimo wo kuvanga melanine yashizweho, kwihutisha kubora no gusohora kwa melanin, kugabanya pigmentation y'uruhu, no gukuraho ibibara na feri.
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Igihe cyo kohereza: Gashyantare-23-2024
