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Clinacanthus nutans Protects Cortical Neurons Against Hypoxia-Induced Toxicity by Downregulating HDAC1/6
This study further opens a new avenue for the use of herbal medicines to regulate epigenetic control of brain injury.
Source: NeuroMolecular Medicine - May 9, 2016 Category: Neurology Source Type: research

Gypenoside Attenuates β Amyloid-Induced Inflammation in N9 Microglial Cells via SOCS1 Signaling.
In this study, we hypothesized that GP attenuates Aβ-induced microglial activation by ameliorating microglial M1/M2 states, and the process may be mediated by suppressor of cell signaling protein 1 (SOCS1). In this study, we found that Aβ exposure increased the levels of microglial M1 markers, including iNOS expression, tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β), and IL-6 releases, and coadministration of GP reversed the increase of M1 markers and enhanced the levels of M2 markers, including arginase-1 (Arg-1) expression, IL-10, brain-derived neurotrophic factor (BDNF), and glial cell-derived neurotrophi...
Source: Neural Plasticity - May 25, 2016 Category: Neurology Authors: Cai H, Liang Q, Ge G Tags: Neural Plast Source Type: research

Cynandione A attenuates neuropathic pain through p38 β MAPK-mediated spinal microglial expression of β-endorphin
This study aims to evaluate the antihypersensitivity activities of cynandione A in neuropathy and explored its mechanisms of action. Intrathecal injection of cynandione A dose-dependently attenuated spinal nerve ligation-induced mechanical allodynia and thermal hyperalgesia, with maximal possible effects of 57% and 59%, ED50s of 14.9 μg and 6.5 μg, respectively. Intrathecal injection of cynandione A significantly increased β-endorphin levels in spinal cords of neuropathic rats and its treatment concentration-dependently induced β-endorphin expression in cultured primary microglia (but not in neurons or astrocytes), wit...
Source: Brain, Behavior, and Immunity - February 8, 2017 Category: Neurology Source Type: research

Cynandione A attenuates neuropathic pain through p38 β MAPK-mediated spinal microglial expression of β-endorphin.
This study aims to evaluate the antihypersensitivity activities of cynandione A in neuropathy and explored its mechanisms of action. Intrathecal injection of cynandione A dose-dependently attenuated spinal nerve ligation-induced mechanical allodynia and thermal hyperalgesia, with maximal possible effects of 57% and 59%, ED50s of 14.9 μg and 6.5 μg, respectively. Intrathecal injection of cynandione A significantly increased β-endorphin levels in spinal cords of neuropathic rats and its treatment concentration-dependently induced β-endorphin expression in cultured primary microglia (but not in neurons or astrocytes), wit...
Source: Brain, Behavior, and Immunity - February 7, 2017 Category: Neurology Authors: Huang Q, Mao XF, Wu HY, Liu H, Sun ML, Wang X, Wang YX Tags: Brain Behav Immun Source Type: research

Formononetin attenuates H < sub > 2 < /sub > O < sub > 2 < /sub > -induced cell death through decreasing ROS level by PI3K/Akt-Nrf2-activated antioxidant gene expression and suppressing MAPK-regulated apoptosis in neuronal SH-SY5Y cells
In this study, we investigated the protective effect of formononetin on hydrogen peroxide (H2O2)-induced death of human neuroblastoma SH-SY5Y cells and its underlying molecular mechanism. Formononetin suppressed H2O2-induced cytotoxicity. H2O2-induced increase in the intracellular reactive oxygen species (ROS) levels was decreased by formononetin, together with the enhanced expression of the antioxidant genes. H2O2-induced elevation of the Bax/Bcl-2 ratio and cleaved caspase-3 and caspase-7 levels were lowered by formononetin treatment. Moreover, formononetin repressed H2O2-induced phosphorylation of mitogen-activated prot...
Source: Neurotoxicology - June 2, 2021 Category: Neurology Authors: Mayuko Sugimoto Risa Ko Hiromi Goshima Atsushi Koike Makio Shibano Ko Fujimori Source Type: research

Storax Protected Primary Cortical Neurons from Oxygen-Glucose Deprivation/Reoxygenation Injury via Inhibiting the TLR4/TRAF6/NF- κB Signaling Pathway
This study aimed to elucidate the neuroprotective effects and underlying mechanisms of storax on oxygen-glucose deprivation/reoxygenation (OGD/R) in injured cortical neurons. The cortical neurons of Wistar rats were primarily cultured in vitro. TheTUNELmethod and CM-H2DCFDA probe were used to detect cell apoptosis and reactive oxygen species (ROS) expression. Enzyme-linked immunosorbent assay, reverse transcription-polymerase chain reaction, and Western blot were used to detect the expression of inflammatory cytokines and proteins of the TLR4/TRAF6/NF-κB signaling pathway. Immunofluorescence was used to measure NF-κB nuc...
Source: Brain Research - July 25, 2022 Category: Neurology Authors: Lin Li Shaoqian Yue Rui Han Yajun Yu Peng Zhang Ling Lv Jinqiang Zhu Min Zhou Xiang Fan Han Zhang Source Type: research