A melanocyte rudzi rwechechi iyo inonyanya kuwanikwa mumusasa wepasi pepidermis . Melanocytes inogadzira melanin, iyo inonzi brown pigment iyo inokonzera ganda rekugadzirisa uye inodzivirira kune zvinokuvadza zvinokonzera UV chiedza. Melanocytes inowanikwawo mune bvudzi uye mu irises maziso.
The Makeup of Melanocytes
Melanocytes inokura mumagetsi e-neural crest: boka rechinguva rema embryonic cells rinowedzeswa sezvinonzi neural tube-kana yep-spinal cord-forms.
Munguva ye embryonic stage of life, melanocytes inobva kubva ku-neural crest kuenda kunheyo yepamusoro ye epidermis. Melanocytes inofanana nebazi, inovabvumira kutumira melanin kune mamwe masero echeperi , akafanana nekeratinocytes . Keratinocytes ndiyo inowanzosvibisa masero eganda anosimbisa bvudzi, mbambo, uye ganda.
Kugadzirwa
Melanocytes inobereka melanin, inowanikwa mumasero epidermal. Kune marudzi maviri akasiyana-siyana e melanin kuti melanocytes inobereka: eumelanin, iyo yakaita kuti tsvuku ine ruvara, uye phaeomelanin, iyo inogona kuva nehupamhi kana tsvuku.
Chirongwa cheMelanin chinotungamirirwa nehomadhidiro hormone inowanikwa mune gland pituitary uye inozivikanwa se-melanocyte-stimulating hormone. Zvironda zveputi uye mazinga eestrogen akaputika anowanikwa panguva yekuzvitakura inokonzera kuti chirwere chepituitary chibudise zvakawanda zvehomoni iyi.
Asi ma-melanocytes haabatsiri nguva dzose sezvaanofanira. Vitiligo, somuenzaniso, inzvimbo yeganda inogadziriswa iyo melanocytes haigoni kubudisa melanin, zvichiita kuti chena, mavara akafanana nemaputi eganda anowedzera kukura.
Kushaiwa kwemalaanini kunoshandurawo bvudzi munzvimbo yakaoma (s) yakachena. Mamwe mamiriro ezvinhu anokonzerwa nekushaiwa kwechivhurani inosanganisira albinism uye phenylketonuria.
Kukosha kweMelanin
Mucheka weganda revanhu unosiyana. Mumvuri wayo chaiwo unotsanangurwa neropa rinoyerera kuburikidza naro, kudya, uye melanin yakabudiswa ne melanocytes.
Vanhu vanowanzova nemafungiro akafanana e-melanocytes; iyo yakawanda ye melanin iyo iyo melanocytes inobereka, zvisinei, ndiyo inoshanduka.
Melanin inodzivirira ganda nekudzivirira kubva kuzuva. Apo ganda rinoratidzika kune zuva, kubudisa maranin kunowedzera, ndicho chinounza tani. Icho chitunha chemuviri chemuviri chinopesana nezuva.
Nguva muSuva Inouya Nokudhura
Munhu wose anotarisa zviri nani nekupenya, asi zvinouya pamutengo. Kushandisa nguva yakakura muzuva (kana mumubhedha unopisa) kune ngozi. Tora kupisa kwezuva, somuenzaniso. Zvinotora nguva ye melanocytes kuti ibudise melanin uye inodzivirira ganda kubva mumasikati ekukuvadza. Apo melanocytes haigoni kushanda nekukurumidza zvakakwana kuti igadzire tani, mavhiri eWV anobva paguva anogona kupisa ganda ndokurisiya rinotarisa ropena kana rakatsvuka. Kuora kwezuva kunowedzerawo kupfuura nguva, izvo zvinogona kutungamirira kune kenza yenguruve. Iyo inojekesa ganda rako, iyo inowedzera mukana wako wekuve nekenza yeganda. Saka iva nechokwadi chokuti unoona dermatologist nguva dzose yeganda rekuongorora.
Zuva rezuva harisi rose rakaipa, zvakadaro. Ganda rinoshandisa chiedza chezuva kuti riite vitamini D, iyo inotora calcium uye inokosha kuti pfupa rive nesimba uye kukura.