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Morinda officinalis oligosaccharides alleviate depressive-like behaviors in post-stroke rats via suppressing NLRP3 inflammasome to inhibit hippocampal inflammation
CONCLUSION: Overall, our study reveals the antidepressive effect of MOOs on PSD rats through modulation of microglial NLRP3 inflammasome. We also provide a novel insight into hippocampal inflammation response in PSD pathology and put forward NLRP3 inflammasome as a potential therapeutic target for PSD.PMID:34559953 | DOI:10.1111/cns.13732
Source: CNS Neuroscience and Therapeutics - September 24, 2021 Category: Neuroscience Authors: Zhifang Li Hexiang Xu Yi Xu Guanfeng Lu Qiwei Peng Jiefang Chen Rentang Bi Jianzhuang Li Shengcai Chen Hongkai Li Huijuan Jin Bo Hu Source Type: research

Claudin-5 Affects Endothelial Autophagy in Response to Early Hypoxia
Hypoxic injury to cerebrovascular endothelial cells (ECs) after stroke leads to blood-brain barrier (BBB) dysfunction, which is commonly associated with disruptions of endothelial tight junctions (TJs) and increased permeability. Therefore, maintaining the structural integrity and proper function of the BBB is essential for the homeostasis and physiological function of the central nervous system (CNS). Our previous study revealed that autophagy functions on protecting the BBB by regulating the dynamics of Claudin-5, the essential TJ protein, under short-term starvation or hypoxia conditions. Here, we show that in zebrafish...
Source: Frontiers in Physiology - August 31, 2021 Category: Physiology Source Type: research

c-myc protects mice from ischemia stroke through elevating microRNA-200b-5p-regulated SIRT1 expression
CONCLUSION: Overall, c-myc protects mice from IS through elevating miR-200b-5p-targeted SIRT1 expression.PMID:34371139 | DOI:10.1016/j.brainresbull.2021.07.006
Source: Brain Research Bulletin - August 9, 2021 Category: Neurology Authors: Xiaodan Liu Heng Guo Xiao Wang Hong Jiao Lei Li Jiaolin Zheng Source Type: research

Intratubular, Intracellular, and Mitochondrial Angiotensin II/AT1 (AT1a) Receptor/NHE3 Signaling Plays a Critical Role in Angiotensin II-Induced Hypertension and Kidney Injury
The objectives of this invited article are to review and discuss our recent findings that (a) circulating and intratubular Ang II is taken up by the proximal tubules via the (AT1) AT1a receptor-dependent mechanism, (b) intracellular administration of Ang II in proximal tubule cells or adenovirus-mediated overexpression of an intracellular Ang II fusion protein selectively in the mitochonria of the proximal tubules induces blood pressure responses, and (c) genetic deletion of AT1 (AT1a) receptors or the Na+/H+ exchanger 3 selectively in the proximal tubules decreases basal blood pressure and attenuates Ang II-induced hypert...
Source: Frontiers in Physiology - August 2, 2021 Category: Physiology Source Type: research

Neuritin improves the neurological functional recovery after experimental intracerebral hemorrhage in mice
In this study, ICH was induced in C57BL/6 J mice by injection of collagenase VII, while the overexpression of Nrn in the striatum was induced by an adeno-associated virus serotype 9 (AAV9) vector. We found that compared with GFP-ICH mice, Nrn-ICH mice showed improved performance in the corner, cylinder and forelimb tests after ICH, and showed less weight loss and more rapid weight recovery. Overexpression of Nrn reduced brain lesions, edema, neuronal death and white matter and synaptic integrity dysfunction caused by ICH. Western blot results showed that phosphorylated PERK and ATF4 were significantly inhibited, while phos...
Source: Neurobiology of Disease - May 31, 2021 Category: Neurology Authors: Junmei Lu Zhaoyang Li Qianru Zhao Dongdong Liu Yan-Ai Mei Source Type: research

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