PMID- 35142690 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220309 IS - 1673-5374 (Print) IS - 1876-7958 (Electronic) IS - 1673-5374 (Linking) VI - 17 IP - 9 DP - 2022 Sep TI - Urolithin A alleviates blood-brain barrier disruption and attenuates neuronal apoptosis following traumatic brain injury in mice. PG - 2007-2013 LID - 10.4103/1673-5374.335163 [doi] AB - Urolithin A (UA) is a natural metabolite produced from polyphenolics in foods such as pomegranates, berries, and nuts. UA is neuroprotective against Parkinson's disease, Alzheimer's disease, and cerebral hemorrhage. However, its effect against traumatic brain injury remains unknown. In this study, we established adult C57BL/6J mouse models of traumatic brain injury by controlled cortical impact and then intraperitoneally administered UA. We found that UA greatly reduced brain edema; increased the expression of tight junction proteins in injured cortex; increased the immunopositivity of two neuronal autophagy markers, microtubule-associated protein 1A/B light chain 3A/B (LC3) and p62; downregulated protein kinase B (Akt) and mammalian target of rapamycin (mTOR), two regulators of the phosphatidylinositol 3-kinase (PI3K)/Akt/mTOR signaling pathway; decreased the phosphorylation levels of inhibitor of NFkappaB (IkappaB) kinase alpha (IKKalpha) and nuclear factor kappa B (NFkappaB), two regulators of the neuroinflammation-related Akt/IKK/NFkappaB signaling pathway; reduced blood-brain barrier permeability and neuronal apoptosis in injured cortex; and improved mouse neurological function. These findings suggest that UA may be a candidate drug for the treatment of traumatic brain injury, and its neuroprotective effects may be mediated by inhibition of the PI3K/Akt/mTOR and Akt/IKK/NFkappaB signaling pathways, thus reducing neuroinflammation and enhancing autophagy. FAU - Gong, Qiu-Yuan AU - Gong QY AD - Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China. FAU - Cai, Lin AU - Cai L AD - Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China. FAU - Jing, Yao AU - Jing Y AD - Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China. FAU - Wang, Wei AU - Wang W AD - Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China. FAU - Yang, Dian-Xu AU - Yang DX AD - Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China. FAU - Chen, Shi-Wen AU - Chen SW AD - Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China. FAU - Tian, Heng-Li AU - Tian HL AD - Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China. LA - eng PT - Journal Article PL - India TA - Neural Regen Res JT - Neural regeneration research JID - 101316351 PMC - PMC8848621 OTO - NOTNLM OT - autophagy OT - blood-brain barrier OT - cerebral edema OT - controlled cortical impact model OT - neuronal apoptosis OT - neuropharmacology OT - neuroprotection OT - tight junction protein OT - traumatic brain injury OT - urolithin A COIS- None EDAT- 2022/02/11 06:00 MHDA- 2022/02/11 06:01 PMCR- 2022/02/08 CRDT- 2022/02/10 12:14 PHST- 2022/02/10 12:14 [entrez] PHST- 2022/02/11 06:00 [pubmed] PHST- 2022/02/11 06:01 [medline] PHST- 2022/02/08 00:00 [pmc-release] AID - NeuralRegenRes_2022_17_9_2007_335163 [pii] AID - NRR-17-2007 [pii] AID - 10.4103/1673-5374.335163 [doi] PST - ppublish SO - Neural Regen Res. 2022 Sep;17(9):2007-2013. doi: 10.4103/1673-5374.335163.