PMID- 38058079 OWN - NLM STAT- MEDLINE DCOM- 20231211 LR - 20231211 IS - 1944-7930 (Electronic) IS - 1539-6509 (Linking) VI - 35 IP - 179 DP - 2023 Dec TI - Eriocitrin Alleviates Inflammation and Oxidative Stress in Subarachnoid Hemorrhage by Regulating DUSP14. PG - 1134-1146 LID - 10.24976/Discov.Med.202335179.110 [doi] AB - BACKGROUND: Inflammation and oxidative stress (OS) are major causes of aneurysmal subarachnoid hemorrhage (aSAH)-induced early brain injury (EBI). Eriocitrin (EC), a flavonoid compound, has anti-inflammatory and antioxidant actions. However, there is still no relevant studies on the role of EC in SAH. Accordingly, this research aims to clarify the anti-OS and anti-inflammatory efficacy of EC in SAH. METHOD: Rat SAH model was established in vivo and administered with Eriocitrin (25 mg/kg). In vitro, BV2 cells were exposed to oxyhemoglobin (OxyHb) for 24 hours and pretreated with Eriocitrin (1 uM/mL, 2 uM/mL, 4 uM/mL) for 30 minutes. Water maze experiments and neurological function scores were conducted to assess cognitive and motor function. TdT-mediated dUTP Nick-End Labeling (TUNEL) staining was used to detect cortical cell apoptosis. Enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR) were used to detect the inflammatory factors and malondialdehyde (MDA), as well as the expression of superoxide dismutase (SOD) and glutathione peroxidase (GSH-px). Western blots were used to semi quantify nuclear factor erythroid-2-related factor 2 (Nrf2), nuclear factor-kappaB (NF-kappaB), dual specificity phosphatase 14 (DUSP14) expression. RESULTS: The findings suggest that EC (25 mg/kg) reduced SAH-induced central nervous system (CNS) damage, neuronal apoptosis, inflammatory reactions and OS. Regarding a mechanistic study, EC enhanced Nrf2 and NF-kappaB by increasing DUSP14 activation, thereby reducing the inflammatory cytokines interleukin (IL)-1beta, tumor necrosis factor (TNF)-alpha, and IL-6. In addition, EC decreased MDA while markedly elevating SOD and enhancing GSH-px. Furthermore, specifically inhibiting DUSP14 expression via using protein-tyrosine-phosphatase (PTP) inhibitor IV, neutralized the protective action of EC and aggravated inflammation and OS. In vitro experiments of OxyHb-induced BV2 cells revealed that EC promoted Nrf2 while markedly suppressing NF-kappaB by increasing DUSP14 activation, thereby reducing the concentrations of the above inflammatory cytokines. Moreover, EC decreased MDA while evidently increasing SOD and GSH-px. CONCLUSION: In summary, this paper lays a theoretical grounding for EC treatment of SAH-induced inflammatory reactions and OS by regulating DUSP14. FAU - Sheng, Liuqing AU - Sheng L AD - Department of Neurosurgery, Renmin Hospital of Wuhan University, 430060 Wuhan, Hubei, China. AD - Department of Neurosurgery, The Third People's Hospital of Hubei Province, 430014 Wuhan, Hubei, China. FAU - Yao, Xiaolong AU - Yao X AD - Department of Neurosurgery, The Third People's Hospital of Hubei Province, 430014 Wuhan, Hubei, China. FAU - Ye, Jianfeng AU - Ye J AD - Department of Neurosurgery, The Third People's Hospital of Hubei Province, 430014 Wuhan, Hubei, China. FAU - Wang, Zhizhong AU - Wang Z AD - Department of Neurosurgery, The Third People's Hospital of Hubei Province, 430014 Wuhan, Hubei, China. FAU - Chen, Yinchun AU - Chen Y AD - Department of Neurosurgery, The Third People's Hospital of Hubei Province, 430014 Wuhan, Hubei, China. FAU - Li, Jun AU - Li J AD - Department of Neurosurgery, The Third People's Hospital of Hubei Province, 430014 Wuhan, Hubei, China. FAU - Li, Mingchang AU - Li M AD - Department of Neurosurgery, Renmin Hospital of Wuhan University, 430060 Wuhan, Hubei, China. LA - eng PT - Journal Article PL - United States TA - Discov Med JT - Discovery medicine JID - 101250006 RN - 0 (NF-kappa B) RN - AS293HR5XQ (eriocitrin) RN - 0 (NF-E2-Related Factor 2) RN - 0 (Anti-Inflammatory Agents) RN - 0 (Cytokines) RN - EC 1.15.1.1 (Superoxide Dismutase) SB - IM MH - Rats MH - Animals MH - *NF-kappa B/metabolism/pharmacology/therapeutic use MH - *Subarachnoid Hemorrhage/complications/drug therapy/pathology MH - NF-E2-Related Factor 2/metabolism/pharmacology/therapeutic use MH - Rats, Sprague-Dawley MH - Oxidative Stress MH - Inflammation/drug therapy/pathology MH - Anti-Inflammatory Agents/pharmacology/therapeutic use MH - Cytokines/metabolism MH - Superoxide Dismutase/metabolism/pharmacology/therapeutic use OTO - NOTNLM OT - DUSP14 OT - NF-kappaB OT - SAH OT - eriodocitrin OT - inflammatory OT - oxidative stress EDAT- 2023/12/07 06:42 MHDA- 2023/12/11 12:43 CRDT- 2023/12/07 01:13 PHST- 2023/12/11 12:43 [medline] PHST- 2023/12/07 06:42 [pubmed] PHST- 2023/12/07 01:13 [entrez] AID - 1701411457150-439657466 [pii] AID - 10.24976/Discov.Med.202335179.110 [doi] PST - ppublish SO - Discov Med. 2023 Dec;35(179):1134-1146. doi: 10.24976/Discov.Med.202335179.110.