No ke aha i ʻokoʻa ai ke kala o ko kākou ʻili kekahi i kekahi? E aʻo kākou i nā mea āpau e pili ana i ka melanin ma ke ala maʻalahi!

He ʻokoʻa ko kākou ʻili, nā kala lauoho, a me nā kala maka, ʻeā? He keʻokeʻo loa kekahi, he keʻokeʻo kekahi, a he ʻili ʻeleʻele kekahi. Pēlā nō hoʻi no ka lauoho, me nā kala ʻeleʻele a me ka ʻeleʻele. E noʻonoʻo wale, ʻo wai ka mea huna e hoʻohui i kēia kala kupaianaha i ko kākou helehelena? ʻO kēlā mea huna ka mea a kākou e kapa nei he melanin . I kēia lā, e kamaʻilio kākou e pili ana i ka melanin, me he mea lā e kamaʻilio ana kākou me kahi hoaaloha.

I ka ʻōlelo maʻalahi, he aha ka melanin?

He pigment kūlohelohe ka Melanin i hana ʻia e ko kākou kino ponoʻī. E like me kā kākou hoʻohana ʻana i nā pena i ka wā e pena ai, hoʻohana ko kākou kino i kēia pigment i kapa ʻia ʻo melanin e hāʻawi i ko kākou ʻili, lauoho, a me nā maka i ko lākou mau kala kūikawā. He hui kemika paʻakikī ia i hana ʻia mai kahi waikawa amino i kapa ʻia ʻo `(Tyrosine)`. Akā, mai hoʻokuʻu i nā huaʻōlelo e like me kēlā e huikau iā ʻoe. E hoʻomanaʻo wale, ʻo ka melanin ke kala kūlohelohe o ko kākou kino .

Ma hea i loko o ko mākou kino i hana ʻia ai ka melanin?

Hoʻopuka ʻia ka Melanin i loko o kahi ʻano cell kūikawā i kapa ʻia ʻo melanocytes . Kāhea pū mākou i kēia mau "hale hana melanin liʻiliʻi." Aia kēia mau hale hana ma kekahi mau wahi o ko mākou kino.

• I loko o kou lauoho.
• Ma ka papa hohonu loa o kou ʻili.
• Ma nā wahi e like me ka haumāna o kou maka a me ka hōkū hōkū.
• Ma kekahi mau wahi o kou lolo (`Substantia nigra` a me `locus coeruleus`).
• Ma kekahi mau ʻāpana o ko mākou mau kelepa adrenal.
• Ma kekahi mau ʻāpana o ka pepeiao o loko.

Ehia mau ʻano melanin i loaʻa?

ʻAe, ʻekolu ʻano nui o ka melanin. Hana kēlā me kēia ʻano i kahi mea ʻokoʻa i ko mākou kino. E nānā kākou i ko lākou ʻano.

Pehea ka hopena o ka melanin i ka ʻokoʻa o ke kala o ka ʻili?

He mea hoihoi loa kēia. ʻO ka maʻamau, loaʻa iā kākou āpau ka nui like o nā hale hana hana melanin, a i ʻole melanocytes, i loko o ko kākou kino. Eia nō naʻe, ʻokoʻa ka nui o ka melanin i hana ʻia e kēlā mau cell mai kēlā kanaka a kēia kanaka.

I ka ʻōlelo maʻalahi, inā hana nui kāu mau pūnaewele melanocyte i ka melanin, e ʻeleʻele kou ʻili, lauoho, a me nā maka. Inā hana iki kēlā mau pūnaewele i ka melanin, e māmā kou ʻili, lauoho, a me nā maka. ʻO nā kiko ma ko mākou ʻili (freckles) he mau puʻupuʻu wale nō o nā pūnaewele melanocyte i hōʻuluʻulu ʻia ma kahi hoʻokahi a ke hana nei i ka melanin hou aʻe.

Pehea e kōkua ai ka melanin i ka pale ʻana i ko mākou ʻili mai ka lā

ʻAʻole wale ka Melanin kahi mea e hāʻawi mai ai i ke kala iā kākou. He mea pale koʻikoʻi loa ia i ko kākou kino. Ke hele ʻoe i waho i ka lā, hoʻomaka kou kino e hana i ka melanin hou aʻe. Ua ʻike paha ʻoe i ka wā e hele ai ʻoe i waho i ka lā, ʻeleʻele iki kou ʻili. ʻO ia no ka mea e hoʻonui ʻia ka hana ʻana o ka melanin.

Hana kēia melanin keu e like me kahi umbrella kūlohelohe, e omo ana i nā kukuna ultraviolet (UV) ʻino mai ka lā. Pale kēia i kēlā mau kukuna ʻino mai ke komo hohonu i loko o ko kākou ʻili a hōʻino i nā cell. Mālama pū ia i ka ʻike genetic i loko o ko kākou mau cell.

Akā e hoʻomanaʻo i kēia! ʻAʻole lawa kēia pale kūlohelohe mai ka melanin wale nō e pale piha i ko kākou ʻili mai ka lā. No laila, ʻaʻohe mea he aha ke kala o kou ʻili, he mea nui e hoʻohana i kahi sunscreen maikaʻi i kēlā me kēia manawa āu e hele ai i waho.

He aha nā pono ʻē aʻe a mākou e loaʻa ai mai ka melanin?

Ma waho aʻe o ka pale ʻana iā mākou mai ka lā, he mau pono ʻē aʻe ko ka melanin no mākou.

• Ka palekana ʻana mai ka ROS: Ke hana kā mākou mau cell, hana lākou i nā huahana ʻino i kapa ʻia ʻo "Reactive Oxygen Species - ROS". Ke hōʻiliʻili kēia mau mea i loko o kā mākou mau cell, hiki iā lākou ke hoʻoulu iā mākou e ʻelemakule mua, hoʻomohala i nā maʻi e like me ka maʻi diabetes, a me ke kanesa. Hana ʻo Melanin ma ka hopu ʻana a me ka luku ʻana i kēia mau ROS ʻino.
• Ke kākoʻo ʻana i ka ʻōnaehana pale: Ua ʻike kekahi mau noiʻi e hiki i ka melanin ke kōkua i kā mākou ʻōnaehana pale a hōʻemi i ka mumū i loko o ke kino. Eia nō naʻe, ke hana ʻia nei nā noiʻi hou aʻe ma kēia.

Nā maʻi i hoʻokumu ʻia e nā loli i ka hana ʻana o ka melanin

I kekahi manawa, hiki ke loaʻa nā ʻano maʻi like ʻole ma muli o ka emi ʻana o ka hana ʻana o ka melanin i loko o ko kākou kino a i ʻole kekahi mau loli i loko. E nānā kākou i kekahi o ia mau ʻano.

He aha ka mea e hana ai inā nui ka melanin i loko o ke kino?

Hoʻopuka kekahi poʻe i ka melanin nui loa i loko o ko lākou kino. Ua kapa ʻia kēia he hyperpigmentation . ʻAʻole kēia he kūlana ʻino. Ke hana ʻia kēia, lilo kekahi mau wahi o ka ʻili i ʻeleʻele ma mua o ka ʻili a puni.

Aia kekahi mau ala e hoʻonui ai i ka nui o ka melanin?

ʻOiai aia nā huahana ma ka mākeke e koi ana e hoʻonui i ka melanin, ʻaʻohe hōʻike ʻepekema o ko lākou pono. No laila, mai hoʻopunipuni ʻia e ia mau mea. Eia kekahi, manaʻo kekahi poʻe hiki i ka tanning ke hoʻonui i ka melanin. He manaʻo hewa loa ia a he mea weliweli hoʻi. Hoʻonui wale ka tanning i ka pilikia o ka maʻi ʻili.

He ʻelua mau mea like ʻole ʻo Melanin lāua ʻo Melatonin?

ʻAe, he ʻokoʻa loa kēia mau mea ʻelua. ʻOiai ke kani like nei nā huaʻōlelo ʻelua, he ʻokoʻa loa kā lāua mau hana.

• ʻO Melanin ka pigment e hāʻawi i ke kala i ko mākou ʻili a me ka lauoho.
• ʻO ka Melatonin kahi hormone e kaohi ana i kā mākou hiamoe a me ke ala ʻana.

Hiki i nā kānaka me ka melanin kiʻekiʻe i loko o ko lākou ʻili ke nele i ka wikamina D?

He nīnau koʻikoʻi nō hoʻi kēia. Manaʻo kekahi poʻe loea he ʻoi aku ka nui o ka poʻe me ka ʻili ʻeleʻele e loaʻa i ka nele o ka wikamina D ma mua o ka poʻe me ka ʻili māmā. ʻO kēia no ka mea ʻoi aku ka nui o ka melanin e omo i nā kukuna UV e pono ai e hana i ka wikamina D. Aia nā haʻawina e kākoʻo ana i kēia, akā pono ka noiʻi hou aku ma kēia. Inā he kānalua kāu e pili ana i kēia, ʻoi aku ka maikaʻi o ke kamaʻilio ʻana me kāu kauka no ka ʻōlelo aʻo.