Melanin - He aha ka mea a ke kumu ua mea e pono?

Mākou a pau ike i kanakaʻokoʻa kala like 'ole o ka ili, maka a me ka lauoho, akā, e mai mau manaʻo, no ke aha la i keia hana ma kai. Akā, e'Āhewa melanin. He aha ka mea? Pigmentʻeleʻele a pouliʻeleʻele kala like 'ole, i mea i loaʻa i loko o kekahi keena, a i aia nā ma na epidermis, a ma na iris o ka maka. Ma kekahi mau hihia, i ke dala a hoʻoholo ma ka genotype, ma na mea e ae - ka? Aneie keia.

Ka nui, e hoike ana i ka? Iecaianoaaiiie o melanin i wahi ma lalo o ka aoao o ka lń - kaʻili ua palekana mai ka UV malamalama, Hoa ikeia. Ka oi manawa i ke kanaka ka hāhai i loko o ka lā, o ka uala eleele ka mea, i kaʻili - keia mea he, he pono ole kūlana pale naoh. Akā, Aneane mea ike i kekahi mau kanaka Hoa maikaʻi aʻino, kekahi ponoʻia ke ahi. Like o ka hihia a me ka maka waihoʻoluʻu ua nānā 'ia e ka genotype. Ka ili o na kanaka pono he iki melanin, a me ke kino i produces lawa mea, pela no oe i ke hoʻohana sunscreen.

Kēia hana o ka melanin ka loa nui, a hiki i ke ao nei, a no laila, kēlā me kēia makahiki i ka nui helu o ka hihia o ka ili maʻi 'aʻai, keia pigment me ia mea e ia i oi. Nā hualoaʻa ma ka liʻiliʻi loa o kaʻApelika Waena'āinapuniʻole - me ka ikaika photoprotection hoʻomaopop 'ana i ke kaiakū noho ana, ka mea makemake e hiki ole ke ola. No laila, i kēia nui o ka waiwai a kuleana no ke ano o ka ili a me ka malama ia ia mai o ka waiwaiʻino wale i o Map.

Pela, ua hiki eaaei hoomaopopo kanaka me kiʻekiʻe pae o melanin mai ke koena - ka mea, ua oluolu i ka malamalama, a me ka malu i ko lakou ili, he kākaʻikahi loa malamalama, IeAUPIIe, IAa IO oliva paha uala eleele. Aia He He ano kahi i ke kino hiki ole i ka ai lawa ku paha i nā mea a pau i ka paka melanin. He aha ke ano o ia olelo, a pehea aole ia i hoike mai ai ia? Ma keia hihia, ua olelo e pili ana i albinism - i ke ano o ia mau kanaka i mea i mua ike loa Kupanaha. Albino kanaka hiki ke loaʻa infrequently, akā, i loko o ka holoholona honua mea,ʻaʻole ia he rarity, o ka oi aku i loko o rodents. I kekahi manawa, i kaʻili pigment i ua luku no kekahi kumu paha kekahi - laila mākou e kamaʻilio e pili ana i vitiligo.

'Aʻole wale nō kanaka ano e paka i loko o kā lākou mau keena ma muli o ke Map melanin. He aha aʻole ia ke ano o? He Fish, holoholona a me nā mea kanu, hoi, paka ia? Ae, no ka mea, ka mea, hoi, pono photoprotection, a me ka pigment mea e akakaʻi na pale o ka ultraviolet.

Ma waho aʻeo i kona iniiaiie papa, i ka melanin i loko o ke kino Radio he kūlana hou o ka neurotransmitter, a ua komo i loko o ka hoihoi hou ia ana a me ka palekana o ka DNA - ka aaiaoe ike o kela a me keia kanaka meaola. Eia hou kekahi, ia mea he mana antioxidant, i ka nui kūlana o keia waiwai i loihi ua ike i ka laau lapaau. He ka pigment kuleana no ka ho okumu ana o freckles - i kohuia keena houluulu mai i loko o ka pae, a me ka mea nana e like kiko uuku ma kaʻili, i ike ai i nā mea a pau.

People me ka haikea ili pinepine makemake e i kā lākou mau keena maʻamau paka melanin. He aha ka mea? Hiki ia e hana? Pono -ʻAʻole, akā, he mea hiki, e hoomahuahua i kaʻai ana o kaʻai me ka wikamina A, i ka mea i komo ma ka a me keia pigment? Iecaianoaaiiuo, a me i haawi mai i ka ili he gula hue. Melanin Ua pehea e extract mai na aeee i aoia, a me synthesized ma ka'aminoʻakika tyrosine. Ua Ua hoʻohana 'ia i loko o medicaments no ka lapaau ana o vitiligo a me ka photodermatitis, eczema a me ka poe' ole. D. Ua i loaʻa ma loko o nā mea hoʻonani no ka hoomalu ana mai ultraviolet pāhawewe, a me ka noi ma hope o tanning. Malama ole ili hoomalu ke ole ma kekahi hihia, no ka mea, mea fraught me ole wale'ā, akā, i nui aku hoʻoponopono pilikia.