PMID- 31190087 OWN - NLM STAT- MEDLINE DCOM- 20200831 LR - 20200831 IS - 1432-1912 (Electronic) IS - 0028-1298 (Linking) VI - 392 IP - 10 DP - 2019 Oct TI - Neuroprotective effect of chlorogenic acid in global cerebral ischemia-reperfusion rat model. PG - 1293-1309 LID - 10.1007/s00210-019-01670-x [doi] AB - The ischemic cascade is initiated in the hypoperfused region of the brain that leads to neuronal cell death. Identification of multi-target inhibitor against prominent molecular mediators of ischemic cascade might be a suitable strategy to combat cerebral ischemic stroke. The present study is designed to evaluate the neuroprotective efficacy of chlorogenic acid (CGA) in the global cerebral ischemic rat model. The effective dose of CGA was evaluated on the basis of reduction in cerebral infarction area percentage, Evans blue extravasation, and restoration of brain water content. The expression of tumor necrosis factor-alpha (TNF-alpha), inducible nitric oxide synthase (iNOS), and caspase-3 was evaluated by immunohistochemistry and morphological and cellular alterations in the cortex were observed by brain histology. The level of glutamate, calcium, and nitrate in different regions of the brain, as well as cerebrospinal fluid (CSF), was evaluated. The level of calcium and nitrate was compared with ifenprodil-an antagonist of N-methyl-D-aspartate receptor (NMDAR) and 7-nitroindazole-an inhibitor of neuronal nitric oxide synthase (nNOS) respectively. Further, molecular docking was performed to compare the inhibition potential of CGA against NMDAR and nNOS with their inhibitors. Dose optimization results revealed that intranasal administration of CGA (10 mg/kg b.w.) significantly reduced the cerebral infarction area, Evans blue extravasation and restored the brain water content compared with ischemia group. It also significantly reduced the calcium, nitrate, and glutamate levels compared with ischemia group in the cortex, hippocampus cerebellum, and CSF. Immunohistochemical analysis revealed that CGA significantly reduced the expression of TNF-alpha, iNOS, and caspase-3 as compared with the ischemia group. In molecular docking study, CGA displayed similar binding interaction as that of Ifenprodil and 7-nitroindazole with NMDAR and nNOS respectively. The current findings suggest that the treatment with CGA confers neuroprotection in global ischemic insult by inhibiting and downregulating the different molecular markers of cerebral ischemia. FAU - Kumar, Gaurav AU - Kumar G AD - Electrophysiology Lab, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India. FAU - Mukherjee, Sumedha AU - Mukherjee S AD - Electrophysiology Lab, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India. FAU - Paliwal, Pankaj AU - Paliwal P AD - Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India. FAU - Singh, Saumitra Sen AU - Singh SS AD - Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India. FAU - Birla, Hareram AU - Birla H AD - Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India. FAU - Singh, Surya Pratap AU - Singh SP AD - Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India. FAU - Krishnamurthy, Sairam AU - Krishnamurthy S AD - Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India. FAU - Patnaik, Ranjana AU - Patnaik R AUID- ORCID: 0000-0002-8131-177X AD - Electrophysiology Lab, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India. rpatnaik.bme@iitbhu.ac.in. LA - eng PT - Journal Article DEP - 20190612 PL - Germany TA - Naunyn Schmiedebergs Arch Pharmacol JT - Naunyn-Schmiedeberg's archives of pharmacology JID - 0326264 RN - 0 (Neuroprotective Agents) RN - 318ADP12RI (Chlorogenic Acid) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type I) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type II) RN - EC 1.14.13.39 (Nos1 protein, rat) RN - EC 1.14.13.39 (Nos2 protein, rat) SB - IM MH - Animals MH - Brain Ischemia/pathology/*prevention & control MH - Cerebral Infarction/drug therapy/pathology MH - Chlorogenic Acid/administration & dosage/*pharmacology MH - Disease Models, Animal MH - Dose-Response Relationship, Drug MH - Male MH - Molecular Docking Simulation MH - Neuroprotective Agents/administration & dosage/*pharmacology MH - Nitric Oxide Synthase Type I/metabolism MH - Nitric Oxide Synthase Type II/metabolism MH - Rats MH - Rats, Inbred Strains MH - Stroke/pathology/*prevention & control OTO - NOTNLM OT - Chlorogenic acid OT - Immunohistochemistry OT - Intranasal OT - Ischemic stroke OT - Molecular docking OT - Neuroprotection EDAT- 2019/06/14 06:00 MHDA- 2020/09/01 06:00 CRDT- 2019/06/14 06:00 PHST- 2019/01/06 00:00 [received] PHST- 2019/05/22 00:00 [accepted] PHST- 2019/06/14 06:00 [pubmed] PHST- 2020/09/01 06:00 [medline] PHST- 2019/06/14 06:00 [entrez] AID - 10.1007/s00210-019-01670-x [pii] AID - 10.1007/s00210-019-01670-x [doi] PST - ppublish SO - Naunyn Schmiedebergs Arch Pharmacol. 2019 Oct;392(10):1293-1309. doi: 10.1007/s00210-019-01670-x. Epub 2019 Jun 12.