Epidermal structural and biochemical hoʻololi i ka ʻelemakule ʻili

ʻO ka metabolism o ka epidermis ʻo ia ka neʻe ʻana o nā keratinocytes basal i luna me ka ʻokoʻa o ke kelepona, a make i ka hana ʻana i kahi stratum corneum non-nucleated, a laila hāʻule.Manaʻo nui ʻia me ka piʻi ʻana o ka makahiki, ua pilikia ka papa basal a me ka ʻāpana spinous, lilo ka hui o ka epidermis a me ka dermis i palahalaha, a emi ka mānoanoa o ka epidermis.Ma ke ʻano he pale o waho o ke kino o ke kanaka, pili pololei ka epidermis me ke kaiapuni o waho a ua maʻalahi loa ka hoʻopili ʻia e nā kumu o waho.Hōʻike maʻalahi ka ʻelemakule epidermal i ka mana o ka makahiki a me nā kumu o waho i ka ʻelemakule kanaka.

I loko o ka epidermis o ka ʻili kahiko, hoʻonui ʻia ka loli o ka nui, morphology a me nā waiwai o ke kala ʻana o nā cell layer basal, e hele mālie ka hui ʻana o ka epidermis a me nā dermis, lilo ka pāpaʻu o ka epidermis, a emi ka mānoanoa o ka epidermis.Ke emi nei ka mānoanoa o ka Epidermal ma kahi o 6.4% i kēlā me kēia ʻumi makahiki, a ʻoi aku ka wikiwiki o ka emi ʻana o nā wahine.Ke emi nei ka mānoanoa Epidermal me ka makahiki.Hoʻolaha nui ʻia kēia hoʻololi ma nā wahi i hōʻike ʻia, me nā ʻaoʻao extensor o ka maka, ka ʻāʻī, nā lima, a me nā lima.Hoʻololi nā keratinocytes i ke ʻano o ka makahiki o ka ʻili, lilo a pōkole a momona, ʻoiai keratinocytes e nui aʻe ma muli o ka liʻiliʻi o ka epidermis, piʻi ka manawa hou o ka epidermis kahiko, emi ka hana proliferative o nā cell epidermal, a ʻoi aku ka lahilahi o ka epidermis.lahilahi, e lilo ai ka ʻili i ka elasticity a me ka wrinkle.

Ma muli o kēia mau hoʻololi morphological, ʻaʻole paʻa ka hui ʻana o ka epidermis-dermis a paʻakikī i ka pōʻino o waho.Ke emi malie nei ka heluna o na melanocytes ma hope o ke 30 o ka makahiki, e emi ana ka mana proliferative, a emi iho ka hana enzymatic o melanocytes ma kahi o 8%-20% no na makahiki he umi.ʻOiai ʻaʻole maʻalahi ka ʻili o ka ʻili, ua maʻalahi nā melanocytes i ka hoʻonui kūloko e hana i nā kiko pigmentation, ʻoi loa ma nā wahi i ʻike ʻia e ka lā.Hoʻemi pū ʻia nā pūnaewele Langerhans, e hoʻemi ana ka hana pale ʻana o ka ʻili a hiki ke loaʻa i nā maʻi maʻi.

ʻili ʻiliHiki ke hoʻohana ʻia ka mīkini e ʻike i nā wrinkle o ka ʻili maka, ke ʻano, ka nalowale ʻana o ka collagen, a me ke ʻano o ka helehelena e kōkua i ka ʻike ʻana i ka ʻelemakule o ka ʻili.


Ka manawa hoʻouna: Mei-12-2022