Ko te mea matua mō te koroheketanga o te kiri:
Te hihi UV, te koroheketanga whakaahua
70% o te koroheketanga o te kiri ka puta mai i te photoaging
Ka pāngia te collagen i roto i tō tātou tinana e ngā hihi UV, e pupuri ana i te kiri kia ātaahua. Ki te mimiti te collagen, ka heke te ngāwari o te kiri, ka totohu, ka mangu, ka kore e ōrite te tae o te kiri, ka nui rawa te tae kiri, ka puta te tae kiri me ētahi atu raruraru kiri.
Kua wehea te whānuitanga o te hihi o te rā ki ngā hihi UVA me UVB. He poto ngā roangaru o ngā hihi UVB, ā, ka taea anake te tahu i te paparanga o runga o tō tātou kiri, kāore e taea te uru hohonu ki roto i te kiri; heoi, he roa ngā roangaru o ngā hihi UVA, ā, ka taea te uru mā roto i te karāhe, ka uru hohonu ki roto i te kiri, ā, ka ngoikore te collagen, ka arahi ki te whanaketanga o ngā kita.
I ngā kupu māmā noa iho, ka arahi te UVA ki te koroheketanga, ka arahi te UVB ki te wera, ā, ka taea e te hihi ultraviolet te kino i te DNA pūtau, te whakaiti i te mahi fibroblast, ā, ka aukatia te hanga collagen, ka arahi ki te whakarerekētanga pūtau, te koroheketanga, me te apoptosis. Nō reira, kei ngā wāhi katoa te UV, ahakoa he paki, he kapua rānei, me mahi pai koe i te tiaki i te rā.
Ko te tuarua o ngā mea nui mō te koroheketanga o te kiri
Ngā rauropi kore-hauota
Ko te kupu matua mō ngā rauropi kore utu ko te 'hāora'. E 98 ki te 99 ōrau o te hāora ka manawahia e tātou i ia manawa; ka whakamahia hei tahu i te kai e kainga ana e tātou, hei tuku i ngā ngota iti hei whakapūngao mā ō tātou pūtau, ā, ka tukuna he nui te pūngao hei whakahaere i te mahi a ō tātou uaua.
Engari, tera pea ka whiriwhiria e te 1%, e te 2% rānei o te hāora tētahi ara rerekē, mōrearea hoki, arā, ko tēnei iti o te hāora, e kiia ana ko ngā rauropi kore utu, e whakaeke ana i ō tātou pūtau. I roto i te wā, ka kohia haeretia tēnei kino i roto i te wā.
Ko ngā tohu o te koroheketanga e kitea nuitia ana i runga i te kiri. He pūnaha ārai tō te tinana e whakatika ana i ngā kino i pā ki ō tātou pūtau nā ngā rauropi kore utu, engari ina tere ake te kohikohi o ngā rauropi kore utu i te tere e taea ai e ngā pūtau o te tinana te whakatika, ka āta koroheke haere te kiri.
Ko te pikitia i runga ake nei ko te kiko kiri tūturu o tō tātou tinana, ka kitea mārama he pōuri ake te kiri o runga, he kanapa ake te kiri o raro, ko te kiri te wāhi e whakaputa ai tātou i te collagen, ā, ko ngā pūtau e whakaputa ana i te collagen e kiia ana ko ngā fibroblast, arā, he mīhini hanga collagen.
Ko ngā pūtau kikokore i waenganui o te pikitia ko ngā pūtau kikokore, ā, ko te tukutuku pungawerewere e karapoti ana i a rātou ko te collagen. Ka hangaia te collagen e ngā pūtau kikokore, ā, ko te kiri taitamariki he whatunga collagen toru-ahu, he piripono, me ngā pūtau kikokore e kukume kaha ana i ngā muka collagen kia whiwhi ai te kiri taitamariki i te kakano matotoru, maeneene hoki.
Ā, ko te kiri tawhito, ko ngā pūtau pūtau me te hononga collagen i waenganui i te pakaru o ngā pūtau pūtau kua koroheketia, ka kore e uru te collagen ki roto, ā, i te roanga o te wā, ka tīmata te koroheketanga o te kiri, koinei te mea e kīia pinepinetia ana ko te koroheketanga o te kiri, me pēhea te whakaoti i te waikura o te kiri?
Haunga te aro nui ki te pare rā, ka taea e tātou te whakamahi i ētahi me te huaora A, te huaora E, te waikawa ferulic, te resveratrol me ētahi atu kai o ngā hua tiaki kiri; i te nuinga o te wā ka taea hoki te kai i ngā hua me ngā huawhenua kanapa, pērā i te tōmato, he nui te lycopene i roto i te tōmato.
Ka taea e ia te mimiti pai i te hāora me te ārai i te ahotea waikura, ka taea hoki e koe te kai i te nui ake o te pūrokoro, kei roto i te pūrokoro tētahi wāhanga e kiia nei ko te hinu māti glycosides, i muri i te kai i tēnei kai, ka rongoatia ki roto i te kiri, kia taea ai e ngā pūtau kiri te tiaki i a rātou anō, ka taea e ēnei hua me ngā huawhenua te whakatairanga i te ātete o te pūtau ki te koroheketanga.
Ko te tuatoru o ngā āhuatanga tino nui o te koroheketanga o te kiri
Te glycation kiri
Ko te glycation, i roto i ngā kupu ngaio, e kiia ana he tauhohenga glycosylation kore-enzymatic, he tauhohenga Melad rānei. Ko te kaupapa matua ko te herea o ngā huka whakaiti ki ngā pūmua i te korenga o ngā whākōkī; he tino taea te huri i ngā huka whakaiti me ngā pūmua, ā, ka roa te wā e pāngia ana ngā huka whakaiti me ngā pūmua e te waikura, te tango hauwai, me te tauhohenga whakarerekētanga, ka hua ake te whakaputanga o ngā hua mutunga glycosylation o te wā mutunga, arā, ngā AGE.
Ko ngā AGE he rōpū para koiora kore e taea te hoki whakamuri, he kowhai-parauri, e hono ana ki ēnei para, kāore e wehi i te whakangaromanga o ngā whākōkī, ā, ko tētahi o ngā tino take o te koroheketanga o te tangata. I a tātou e pakeke haere ana, ka kohikohi ngā AGE i roto i te tinana, ka piki ake te pakeke o ngā pakitara o roto o ngā oko toto, ka kore e taurite te pākia o te wheua ka arahi ki te osteoporosis, me te whakangaromanga o ngā muka collagen me te elastin i roto i te kiri ka arahi ki te koroheketanga o te kiri. Ko te koroheketanga o te kiri i puta mai i te glycation ka whakarapopototia ki roto i te rerenga kotahi: ka whakangaromia e te huka ngā pūmua hauora ka hurihia ngā hanganga pūmua taitamariki ki ngā hanganga pūmua tawhito, ka arahi ki te koroheketanga me te ngaronga o te ngāwari o te collagen me ngā muka ngāwari i roto i te kiri.
Wā tuku: Mei-29-2024
