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The Weakened Interaction Between HECTD4 and GluN2B in Ischemic Stroke Promotes Calcium Overload and Brain Injury Through a Mechanism Involving the Decrease of GluN2B and MALT1 Ubiquitination
This study explores the relationship between HECTD4, GluN2B, and MALT1, focusing on their role in brain injury in ischemic stroke. Rats were subjected to 2  h-ischemia followed by 24-h reperfusion to establish an ischemic stroke model. We observed the downregulation of HECTD4 and the upregulation of MALT1. Additionally, an increased GluN2B phosphorylation was concomitant with weakened interactions between HECTD4 and GluN2B, followed by decreased stria tal-enriched protein phosphatase (STEP61). Knockdown of HECTD4 exacerbated hypoxia- or NMDA-induced injury in nerve cells coincident with a decrease in GluN2B and MALT1 ubiq...
Source: Molecular Neurobiology - March 1, 2023 Category: Neurology Source Type: research

MicroRNA-499a decelerates glioma cell proliferation while accelerating apoptosis through the suppression of Notch1 and the MAPK signaling pathway.
Abstract As the most common and lethal of intracranial tumors, glioma accounts for 81% of all malignant brain tumors. Research data has identified the role of microRNAs (miRs) as functional suppressers in the progression of Glioma. The present study aimed to, ascertain as to whether microRNA-499a (miR-499a) influences cell proliferation and apoptosis through the MAPK signaling pathway by targeting Notch1 in glioma. Both glioma and adjacent tissues between 2012~2016, were obtained from People's Hospital of Zhengzhou University (Henan Provincial People's Hospital). The collected glioma cells were treated with miR-44...
Source: Brain Research Bulletin - June 14, 2018 Category: Neurology Authors: Wang BQ, Yang B, Yang HC, Wang JY, Hu S, Gao YS, Bu XY Tags: Brain Res Bull Source Type: research

Neuroprotective Role of an N-acetyl Serotonin Derivative via Activation of Tropomyosin-related Kinase Receptor B after Subarachnoid Hemorrhage in a Rat Model.
This study is to investigate a potential role of HIOC on ameliorating early brain injury after experimental subarachnoid hemorrhage (SAH). One hundred and fifty-six adult male Sprague-Dawley rats were used. SAH model was induced by endovascular perforation. TrkB small interfering RNA (siRNA) or scramble siRNA was injected intracerebroventricularly 24hours before SAH. HIOC was administrated intracerebroventricularly 3hours after SAH and compared with brain-derived neurotrophic factor (BDNF). SAH grade and neurologic scores were evaluated for the outcome study. For the mechanism study, the expression of TrkB, phosphorylated ...
Source: Neurobiology of Disease - April 8, 2015 Category: Neurology Authors: Tang J, Hu Q, Chen Y, Liu F, Zheng Y, Tang J, Zhang J, Zhang JH Tags: Neurobiol Dis Source Type: research