He aha ngā pānga me ngā mahi makutu o te urolithin A? Ko ēhea ngā hua ka tāpirihia

 He matū koiora nui te Urolithin A e whakamahia whānuitia ana i roto i te rongoā me te tiaki hauora. He whākōkī e hangaia ana e ngā whatukuhu, ā, ko tana mahi he whakarewa i ngā toto totoka. Ko ngā pānga makutu me ngā mahi a te Urolithin A e whakaatuhia ana i roto i ngā āhuatanga e whai ake nei.

Ka ārai a Urolithin A i te pirau o ngā uaua

1. Whakatairanga i te hanganga pūmua uaua me te whakahohe i te ara tohu mTOR

Ko te ara tohu a te mammal target of rapamycin (mTOR) he ara matua mō te whakahaere i te hanganga pūmua uaua. Ka taea e te Urolithin A te whakahohe i te ara tohu mTOR me te whakatairanga i te hanganga pūmua i roto i ngā pūtau uaua.

Ka taea e te mTOR te rongo i ngā tohu pēnei i ngā matūkai me ngā āhuatanga tipu i roto i ngā pūtau. Ina whakahohehia, ka tīmatahia he raupapa o ngā ngota tohu o raro, pēnei i te pūmua ribosomal S6 kinase (S6K1) me te pūmua here eukaryotic initiation factor 4E (4E-BP1). Ka whakahohehia e te Urolithin A te mTOR, ka whakapūtāhui i te S6K1 me te 4E-BP1, ā, ka whakatairangahia te tīmatanga o te whakamaoritanga mRNA me te huihuinga ribosome, me te whakateretere i te hanganga pūmua.

Hei tauira, i roto i ngā whakamātautau me ngā pūtau uaua i whakatipuria i roto i te vitro, i muri i te tāpiri i te urolithin A, i kitea kua piki ake ngā taumata phosphorylation o mTOR me ōna ngota tohu o raro, ā, kua piki ake te whakaaturanga o ngā tohu hanganga pūmua uaua (pēnei i te mekameka taumaha myosin).
Whakahaere i te whakapuakitanga o te ira whakawhiti motuhake ki te uaua

Urolithin A ka taea te whakahaere i te whakaaturanga o ngā tauwehenga whakawhiti motuhake ki te uaua e tika ana mō te hanganga pūmua uaua me te rerekētanga o ngā pūtau uaua. Hei tauira, ka taea e ia te whakanui ake i te whakaaturanga o te tauwehenga rerekētanga myogenic (MyoD) me te myogenin.

Ka taea e MyoD me Myogenin te whakatairanga i te rerekētanga o ngā pūtau take uaua ki roto i ngā pūtau uaua, me te whakahohe i te whakaaturanga o ngā ira motuhake ki te uaua, ā, ka whakatairanga i te hanganga pūmua uaua. I roto i te tauira ngoikore uaua, i muri i te maimoatanga urolithin A, ka piki ake te whakaaturanga o MyoD me Myogenin, ka āwhina i te pupuri i te papatipu uaua me te aukati i te hekenga o te uaua.

2. Ārai i te pirau o te pūmua uaua me te aukati i te pūnaha ubiquitin-proteasome (UPS)

Ko te UPS tētahi o ngā ara matua mō te pakaru o te pūmua uaua. I te wā e memeha haere ana te uaua, ka whakahohehia ētahi E3 ubiquitin ligases, pērā i te muscle atrophy F-box protein (MAFbx) me te muscle RING finger protein 1 (MuRF1), ka taea te tāpiri i ngā pūmua uaua ki te ubiquitin, kātahi ka memeha haere mā te proteasome.

Ka taea e te Urolithin A te aukati i te whakaaturanga me te mahi a ēnei E3 ubiquitin ligases. I roto i ngā whakamātautau tauira kararehe, ka taea e te urolithin A te whakaiti i ngā taumata o MAFbx me MuRF1, te whakaiti i te tohu ubiquitination o ngā pūmua uaua, ā, mā reira ka aukati i te pakaru o te pūmua uaua e whakahaerehia ana e te UPS, ā, ka ārai pai i te hekenga o te uaua.

Te whakarerekētanga o te pūnaha autophagy-lysosomal (ALS)

He mahi tā te ALS i roto i te whakahoutanga o ngā pūmua me ngā whekau uaua, engari ki te kaha rawa te whakaoho, ka taea hoki e te ngoikore o te uaua te arahi ki te ngoikore o te uaua. Ka taea e te Urolithin A te whakahaere i te ALS ki tētahi taumata whaitake. Ka taea e ia te aukati i te nui rawa o te autophagy me te ārai i te nui rawa o te pakaru o ngā pūmua uaua.
Hei tauira, ka taea e te urolithin A te whakahaere i te whakaaturanga o ngā pūmua e pā ana ki te autophagy (pēnei i te LC3-II), kia taea ai te pupuri i te homeostasis o te taiao pūtau uaua me te karo i te whakakorenga nui o ngā pūmua uaua, ā, mā reira ka āwhina i te pupuri i te papatipu uaua.

3. Whakapai ake i te pākia o te pūngao o ngā pūtau uaua

He nui te pūngao e hiahiatia ana mō te whakawhāititanga o te uaua, ā, ko ngā mitochondria te wāhi matua o te whakaputa pūngao. Ka taea e te Urolithin A te whakarei ake i te mahi a ngā mitochondria pūtau uaua me te whakapai ake i te pai o te whakaputa pūngao. Ka taea e ia te whakatairanga i te koiora mitochondria me te whakanui ake i te maha o ngā mitochondria.

Hei tauira, ka taea e te urolithin A te whakahohe i te peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α), he kaiwhakahaere matua o te mitochondrial biogenesis, e whakatairanga ana i te tāruarua DNA mitochondrial me te hanganga pūmua e pā ana. I taua wā anō, ka taea hoki e te urolithin A te whakapai ake i te mahi a te mekameka manawa mitochondrial, te whakanui ake i te hanganga o te adenosine triphosphate (ATP), te whakarato i te kaha e ranea ana mō te whakaheke uaua, me te whakaiti i te hekenga o te uaua i puta mai i te korenga o te kaha.

Ka whakahaere i te pākia o te huka me te ngako, ā, ka tautoko i te mahi a te uaua

Ka taea e te Urolithin A te whakahaere i te pākia o te huka me te ngako o ngā pūtau uaua. Mō te pākia o te huka, ka taea e ia te whakarei ake i te tango me te whakamahinga o te huka e ngā pūtau uaua, me te whakarite kia nui ngā matū pūngao o ngā pūtau uaua mā te whakahohe i te ara tohu insulin, i ētahi atu ara tohu rānei e pā ana ki te kawe huka.

Mō te pākia o te ngako, ka taea e te urolithin A te whakatairanga i te waikura o ngā waikawa ngako, ka whakarato i tētahi atu puna pūngao mō te whakahekenga o te uaua. Mā te arotau i te pākia o te huka me te ngako, ka pupuri te urolithin A i te pūngao o ngā pūtau uaua, ā, ka āwhina ki te ārai i te hekenga o te uaua.

Ka whakapai ake te Urolithin A i te metabolism

1. Whakahaere i te pākia o te huka me te whakapai ake i te aro ki te insulin
Ka taea e te Urolithin A te whakanui ake i te aro o te insulin, he mea nui hei pupuri i te pumau o te huka toto. Ka taea e ia te mahi ki ngā ngota matua o te ara tohu insulin, pērā i ngā pūmua insulin receptor substrate (IRS).

I roto i te āhua ātete insulin, ka aukatia te tyrosine phosphorylation o te pūmua IRS, ka hua ake te korenga o te ara tohu phosphatidylinositol 3-kinase (PI3K) e whakahohehia kia rite ki te tikanga, ā, ka ngoikore te urupare a te pūtau ki te insulin.

Ka taea e te Urolithin A te whakatairanga i te tyrosine phosphorylation o te pūmua IRS, ā, mā reira ka whakahohe i te ara tohu PI3K-protein kinase B (Akt), ka taea ai e ngā pūtau te mimiti me te whakamahi pai ake i te huka. Hei tauira, i roto i ngā whakamātautau tauira kararehe, i muri i te tukunga o te urolithin A, i tino pai ake te aro o te uaua me te kiko ngako ki te insulin, ā, i whakahaerea pai ngā taumata huka toto.

Whakahaere i te hanga me te pakaru o te glycogen

Ko te glycogen te momo rokiroki huka matua i roto i te tinana, e rongoatia ana i roto i te ate me te kiko uaua. Ka taea e te Urolithin A te whakahaere i te hanga me te wawahi o te glycogen. Ka taea e ia te whakahohe i te glycogen synthase, te whakatairanga i te hanga o te glycogen, me te whakanui ake i te rahui o te glycogen.

I taua wā anō, ka taea hoki e te urolithin A te aukati i te mahi a ngā whākōkī glycogenolytic, pērā i te glycogen phosphorylase, me te whakaiti i te nui o te glycogen kua pakaru hei hukahuka ka tukuna ki roto i te toto. Ka āwhina tēnei ki te whakaū i ngā taumata huka toto me te ārai i ngā piki me ngā heke nui o te huka toto. I roto i tētahi tauira rangahau mate huka, i muri i te maimoatanga urolithin A, ka piki ake te nui o te glycogen i roto i te ate me ngā uaua, ā, ka pai ake te whakahaere i te huka toto.

2. Whakapai ake i te pākia o te ngako me te aukati i te hanganga waikawa ngako

He pānga aukati tō te Urolithin A ki te tukanga hanga ngako. I roto i te ate me te kiko ngako, ka taea e ia te aukati i ngā whākōkī matua i roto i te hanga waikawa ngako, pērā i te fatty acid synthase (FAS) me te acetyl-CoA carboxylase (ACC).

He mea nui ngā whākōkī whakahaere a te FAS me te ACC i roto i te hanga hou o ngā waikawa ngako. Ka taea e te Urolithin A te whakaiti i te hanga o ngā waikawa ngako mā te aukati i tā rātou mahi. Hei tauira, i roto i te tauira ate ngako i puta mai i te kai nui-ngako, ka taea e te urolithin A te whakaiti i te mahi a te FAS me te ACC i roto i te ate, te whakaiti i te hanga o ngā triglycerides, ā, nā reira ka whakaiti i te kohikohinga lipid i roto i te ate.

Ka whakatairanga i te waikura waikawa ngako

Haunga te aukati i te hanganga waikawa ngako, ka taea hoki e te urolithin A te whakatairanga i te pirau waikura o ngā waikawa ngako. Ka taea e ia te whakahohe i ngā ara tohu me ngā whākōkī e pā ana ki te waikura waikawa ngako. Hei tauira, ka taea e ia te whakanui ake i te mahi a te carnitine palmitoyltransferase-1 (CPT-1).

Ko te CPT-1 he whākōkī matua i roto i te β-oxidation o te waikawa ngako, e kawe ana i ngā waikawa ngako ki ngā mitochondria mō te wetewete oxidation. Ka whakatairangahia e te Urolithin A te β-oxidation o ngā waikawa ngako mā te whakahohe i te CPT-1, ka whakanui ake i te whakamahinga pūngao ngako, ka āwhina ki te whakaiti i te rokiroki ngako tinana, ā, ka whakapai ake i te pākia o te lipid.

3. Whakapai ake i te pākia o te pūngao me te whakarei ake i te mahi mitochondrial

Ko ngā mitochondria ngā "wheketere pūngao" o ngā pūtau, ā, ka taea e te urolithin A te whakarei ake i te mahi a ngā mitochondria. Ka taea e ia te whakahaere i te koiora mitochondria me te whakatairanga i te hanganga me te whakahoutanga o ngā mitochondria. Hei tauira, ka taea e ia te whakahohe i te peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α).

Ko te PGC-1α he kaiwhakahaere matua o te koiora mitochondrial, e taea ai te whakatairanga i te tāruarua o te DNA mitochondrial me te hanganga o ngā pūmua e pā ana ki te mitochondrial. Ka whakanui ake a Urolithin A i te maha me te kounga o ngā mitochondria, ā, ka whakapai ake i te whai huatanga o te whakaputa pūngao o ngā pūtau mā te whakahohe i te PGC-1α. I taua wā anō, ka taea hoki e te urolithin A te whakapai ake i te mahi mekameka manawa o ngā mitochondria me te whakanui ake i te hanganga o te adenosine triphosphate (ATP).

4. Te Whakahaere i te Hōtaka Anō o te Pūtau Pūtau

Ka taea e te Urolithin A te ārahi i ngā pūtau kia huri i te pūnaha pākia, kia pai ake ai te pākia o te pūtau. I raro i ētahi āhuatanga ahotea, mate rānei, ka rerekē pea te tauira pākia o te pūtau, ka iti ake te whai huatanga o te whakaputa pūngao me te hanga matū.

Ka taea e te Urolithin A te whakahaere i ngā ara tohu pākia i roto i ngā pūtau, pērā i te ara tohu AMP-activated protein kinase (AMPK). Ko te AMPK he "pūoko" o te pākia o te pūngao pūtau. I muri i te whakahohenga a te urolithin A i te AMPK, ka taea e ia te akiaki i ngā pūtau kia neke mai i te anabolism ki te catabolism, ka pai ake te whakamahi i te pūngao me ngā matūkai, ā, ka whakapai ake i te mahi pākia whānui.

Kāore te whakamahinga o te urolithin A i te mea ko te ao hauora anake. Kei te piki haere te aro ki ngā hua hauora me ngā mea whakapaipai. Ka tāpirihia te Urolithin A ki ngā hua hauora maha hei whakapakari i te ārai mate, hei whakapai ake i te rere o te toto, hei whakatairanga hoki i te pākia o te tinana. Ko te nuinga o ēnei hua he rite ki ngā kāpū, ki ngā papa, ki ngā wai rānei, e tika ana mō ngā hiahia o ngā rōpū tāngata rerekē.

I roto i te ao whakapaipai, e whakamahia whānuitia ana te urolithin A i roto i ngā hua tiaki kiri nā te mea he āhuatanga whakaora pūtau me te ārai i te koroheketanga. Ka taea e ia te whakapai ake i te rere o te toto i roto i te kiri, me te whakatairanga i te hanga collagen, ā, ka whakapai ake i te ngāwari me te kanapa o te kiri. He maha ngā waitohu tiaki kiri papai kua tīmata ki te whakamahi i te urolithin A hei wāhanga matua hei whakarewa i ngā hua ārai-koroheketanga, whakatikatika me te whakamakuku hei whakatutuki i te hiahia o ngā kaihoko ki te kiri ataahua.

Hei whakamutunga, hei matū koiora me ngā mahi maha, kua whakaatuhia e te urolithin A he whānuitanga o ngā tono i roto i ngā mara o te rongoā, te hauora me te ataahua. I te hohonu haere o te rangahau pūtaiao, ka haere tonu te whānuitanga o te tono o te urolithin A, ka nui ake ngā kōwhiringa mō te hauora me te ataahua o te tangata.