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MLIF Modulates Microglia Polarization in Ischemic Stroke by Targeting eEF1A1
Monocyte locomotion inhibitory factor (MLIF) is a heat-stable pentapeptide from Entamoeba histolytica. Our previous study found that MLIF protects against ischemic stroke in rats and mice and exerts a neuroprotection effect in human neuroblastoma SH-SY5Y cells. Microglia/macrophage polarization has been proven to be vital in the pathology of ischemic stroke. Nevertheless, whether MLIF is able to modulate microglia/macrophage polarization remains unclear. We performed middle cerebral artery occlusion (MCAO) on C57BL/6J male mice and induced cultured BV2 microglia by oxygen-glucose deprivation (OGD), respectively. Immunfluor...
Source: Frontiers in Pharmacology - September 7, 2021 Category: Drugs & Pharmacology Source Type: research

SIRT1/PGC-1 α signaling activation by mangiferin attenuates cerebral hypoxia/reoxygenation injury in neuroblastoma cells
This study is designed to investigate the protective effect of MGF treatment in the setting of cerebral IRI and to elucidate the potential mechanisms. We first evaluated the toxicity of MGF and chose the safe concentrations for the following experiments. MGF exerted obvious neuroprotection against hypoxia/reoxygenation (HR)-induced injury, indicated by restored cell viability and cell morphology, decreased lactate dehydrogenase (LDH) release and reactive oxygen species generation. MGF also restored the protein expressions of SIRT1, PGC-1α, Nrf2, NQO1, HO-1, NRF1, UCP2, and Bcl2 down-regulated by HR treatment. However, SIR...
Source: European Journal of Pharmacology - June 11, 2021 Category: Drugs & Pharmacology Authors: Mengfan Chen Zheng Wang Wenying Zhou Chenxi Lu Ting Ji Wenwen Yang Zhenxiao Jin Ye Tian Wangrui Lei Songdi Wu Qi Fu Zhen Wu Xue Wu Mengzhen Han Minfeng Fang Yang Yang Source Type: research

Neuroprotective effects of Senkyunolide I against glutamate-induced cells death by attenuating JNK/caspase-3 activation and apoptosis
Biomed Pharmacother. 2021 May 24;140:111696. doi: 10.1016/j.biopha.2021.111696. Online ahead of print.ABSTRACTGlutamate-induced neurotoxicity is one of the most important pathogenic mechanisms in neurological diseases and is widely used as an in vitro model for ischemic stroke. Senkyunolide I (SEI), an active constituent derived from traditional Chinese medicine Ligusticum chuanxiong Hort. and Angelica sinensis (Oliv.) Diels, has been shown to have beneficial effects against focal cerebral ischemia-reperfusion in rats. However, the mechanisms underlying SEI-mediated neuroprotection remain not well understood. Thus, we expl...
Source: Biomedicine and pharmacotherapy = Biomedecine and pharmacotherapie - May 27, 2021 Category: Drugs & Pharmacology Authors: Min Wang Hideki Hayashi Ichiro Horinokita Mayumi Asada Yui Iwatani Jian-Xun Liu Norio Takagi Source Type: research

LL-00066471, a novel positive allosteric modulator of α7 nicotinic acetylcholine receptor ameliorates cognitive and sensorimotor gating deficits in animal models: Discovery and preclinical characterization.
Abstract α7 nicotinic acetylcholine receptor (α7 nAChR) is an extensively validated target for several neurological and psychiatric conditions namely, dementia and schizophrenia, owing to its vital roles in cognition and sensorimotor gating. Positive allosteric modulation (PAM) of α7 nAChR represents an innovative approach to amplify endogenous cholinergic signaling in a temporally restricted manner in learning and memory centers of brain. α7 nAChR PAMs are anticipated to side-step burgeoning issues observed with several clinical-stage orthosteric α7 nAChR agonists, related to selectivity, tolerance/tachyphyl...
Source: European Journal of Pharmacology - October 27, 2020 Category: Drugs & Pharmacology Authors: Verma MK, Goel RN, Bokare AM, Dandekar MP, Koul S, Desai S, Tota S, Singh N, Nigade PB, Patil VB, Modi D, Mehta M, Gundu J, Walunj SS, Karche NP, Sinha N, Kamboj RK, Palle VP Tags: Eur J Pharmacol Source Type: research

LncRNA FOXD3-AS1 knockdown protects against cerebral ischemia/reperfusion injury via miR-765/BCL2L13 axis.
CONCLUSIONS: We verified a critical signaling pathway of FOXD3-AS1/miR-765/BCL2L13 in regulating cerebral ischemia/reperfusion injury. PMID: 33068927 [PubMed - as supplied by publisher]
Source: Biomedicine and pharmacotherapy = Biomedecine and pharmacotherapie - October 14, 2020 Category: Drugs & Pharmacology Authors: Lu Y, Han Y, He J, Zhou B, Fang P, Li X Tags: Biomed Pharmacother Source Type: research

Connecting Metainflammation and Neuroinflammation Through the PTN-MK-RPTP β/ζ Axis: Relevance in Therapeutic Development
Conclusion The expression of the components of the PTN-MK-RPTPβ/ζ axis in immune cells and in inflammatory diseases suggests important roles for this axis in inflammation. Pleiotrophin has been recently identified as a limiting factor of metainflammation, a chronic pathological state that contributes to neuroinflammation and neurodegeneration. Pleiotrophin also seems to potentiate acute neuroinflammation independently of the inflammatory stimulus while MK seems to play different -even opposite- roles in acute neuroinflammation depending on the stimulus. Which are the functions of MK and PTN in chronic neuroi...
Source: Frontiers in Pharmacology - April 11, 2019 Category: Drugs & Pharmacology Source Type: research

Amelioration of oxidative stress in differentiated neuronal cells by rutin regulated by a concentration switch
Publication date: December 2018Source: Biomedicine & Pharmacotherapy, Volume 108Author(s): Banudevi Sivanantham, UmaMaheswari Krishnan, Vignesh RajendiranAbstractIncreasing studies have implicated superfluous production of reactive oxygen species (ROS) as a significant factor in the progress of neurodegenerative disorders ranging from ischemic stroke to amyotrophic lateral sclerosis. The possible mechanisms relating to oxidative stress and neurodegeneration are yet to be thoroughly understood. Rutin, a flavonoid, has been well documented for its beneficial and pharmacological activities against diverse targets. However, th...
Source: Biomedicine and Pharmacotherapy - September 11, 2018 Category: Drugs & Pharmacology Source Type: research

Dual anti-ischemic effects of rosmarinic acid n-butyl ester via alleviation of DAPK-p53-mediated neuronal damage and microglial inflammation.
In conclusion, these results reveal for the first time the potential anti-ischemic effects of RABE on neuronal and glial cells and elucidate the molecular mechanisms involved in its dual beneficial profiles in vitro. RABE may be a promising drug lead/candidate for the treatment of ischemic stroke. PMID: 28216621 [PubMed - as supplied by publisher]
Source: Acta Pharmacologica Sinica - February 19, 2017 Category: Drugs & Pharmacology Authors: Wu L, Wang HM, Li JL, Feng HX, Zhao WM, Zhang HY Tags: Acta Pharmacol Sin Source Type: research

Antioxidative effects of Panax notoginseng saponins in brain cells
Graphical abstract: Abstract: Oxidative stress resulting from accumulation of reactive oxygen species (ROS) is involved in cell death associated with neurological disorders such as stroke, Alzheimer's disease and traumatic brain injury. Antioxidant compounds that improve endogenous antioxidant defenses have been proposed for neural protection. The purpose of this study was to investigate the potential protective effects of total saponin in leaves of Panax notoginseng (LPNS) on oxidative stress and cell death in brain cells in vitro. Lactate dehydrogenase (LDH) assay indicated that LPNS (5μg/ml) reduced H2O2-induced cell d...
Source: Phytomedicine - June 9, 2014 Category: Drugs & Pharmacology Authors: Ningna Zhou, Yang Tang, Richard F. Keep, Xiaoxia Ma, Jianming Xiang Tags: Neurology Source Type: research