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Total 498 results found since Jan 2013.

Mechanism of ischemic brain injury repair by endothelial progenitor cell ‑derived exosomes
Mol Med Rep. 2022 Aug;26(2):269. doi: 10.3892/mmr.2022.12785. Epub 2022 Jul 1.ABSTRACTIschemic stroke is a refractory disease that seriously endangers human health and life. The main treatment aim of stroke is to alleviate brain injury. The present study aimed to investigate the effects and mechanisms of endothelial progenitor cell (EPC)‑derived exosomes in repairing ischemic brain injury. Sprague‑Dawley rat models of cerebral ischemia‑reperfusion (IR) injury were established by middle cerebral artery occlusion. The IR model rats were then treated with PBS, EPC or exosomes; untreated and Sham rats were used as contro...
Source: Molecular Medicine Reports - July 1, 2022 Category: Molecular Biology Authors: Rui Huang Tianxiang Cheng Xianliang Lai Source Type: research

Replacing salt with low-sodium salt substitutes (LSSS) for cardiovascular health in adults, children and pregnant women
CONCLUSIONS: When compared to regular salt, LSSS probably reduce blood pressure, non-fatal cardiovascular events and cardiovascular mortality slightly in adults. However, LSSS also probably increase blood potassium slightly in adults. These small effects may be important when LSSS interventions are implemented at the population level. Evidence is limited for adults without elevated blood pressure, and there is a lack of evidence in pregnant women and people in whom an increased potassium intake is known to be potentially harmful, limiting conclusions on the safety of LSSS in the general population. We also cannot draw firm...
Source: Cochrane Database of Systematic Reviews - August 9, 2022 Category: General Medicine Authors: Amanda Brand Marianne E Visser Anel Schoonees Celeste E Naude Source Type: research

A highly stable electrode with low electrode-skin impedance for wearable brain-computer interface
Biosens Bioelectron. 2022 Sep 28;218:114756. doi: 10.1016/j.bios.2022.114756. Online ahead of print.ABSTRACTTo date, brain-computer interfaces (BCIs) have proved to play a key role in many medical applications, for example, the rehabilitation of stroke patients. For post-stroke rehabilitation, the BCIs require the EEG electrodes to precisely translate the brain signals of patients into intended movements of the paralyzed limb for months. However, the gold standard silver/silver-chloride electrodes cannot satisfy the requirements for long-term stability and preparation-free recording capability in wearable EEG devices, thus...
Source: Biosensors and Bioelectronics - October 9, 2022 Category: Biotechnology Authors: Ju-Chun Hsieh Hussein Alawieh Yang Li Fumiaki Iwane Linran Zhao Richard Anderson Syed Ibtisam Abdullah Kai Wing Kevin Tang Wenliang Wang Ilya Pyatnitskiy Yaoyao Jia Jos é Del R Millán Huiliang Wang Source Type: research

Antihypertension effect of astragaloside  IV during cerebral ischemia reperfusion in rats
In conclusion, astragaloside IV may alleviate CIR injury partially by lowering systemic blood pressure.PMID:36331022 | DOI:10.3892/mmr.2022.12890
Source: Molecular Medicine - November 4, 2022 Category: Molecular Biology Authors: Fengyan Shen Yong Meng Yuhai He Bowan Huang Jinxin Huang Lu Wang Source Type: research

mfat ‐1 transgene protects cultured adult neural stem cells against cobalt chloride‐mediated hypoxic injury by activating Nrf2/ARE pathways
Abstract Ischemic stroke is a devastating neurological disorder and one of the leading causes of death and serious disability in adults. Adult neural stem cell (NSC) replacement therapy is a promising treatment for both structural and functional neurological recovery. However, for the treatment to work, adult NSCs must be protected against hypoxic‐ischemic damage in the ischemic penumbra. In the present study, we aimed to investigate the neuroprotective effects of the mfat‐1 transgene on cobalt chloride (CoCl2)‐induced hypoxic‐ischemic injury in cultured adult NSCs as well as its underlying mechanisms. The results ...
Source: Journal of Neuroscience Research - June 22, 2017 Category: Neuroscience Authors: Junfeng Yu, Haiyuan Yang, Bin Fang, Zhengwei Zhang, Ying Wang, Yifan Dai Tags: Research Article Source Type: research

YiQi Tongluo Granule against cerebral ischemia/reperfusion injury in rats by freezing GluN2B and CaMK Ⅱ through NMDAR/ERK1/2 Signaling.
This study is aimed to evaluate the protective effect of YQTL on cerebral ischemia reperfusion (I/R) injury and inquire into its underlying mechanisms. Cerebral I/R injury was induced by occluding the middle cerebral artery for 2 h followed by 24 h reperfusion. And regional cerebral flow was monitored by Laser Doppler flow during ischemia phase. The infarct volume was evaluated by Triphenyte-trazolium chloride staining. The protective effects of YQTL were assessed by a number of parameters, including neurological scores, regional cerebral blood flow, pathological changes of neuron in hippocampuses and hippocampus calcium l...
Source: Chemical and Pharmaceutical Bulletin - December 28, 2018 Category: Drugs & Pharmacology Authors: Wu SP, Li D, Wang N, Hou JC, Zhao L Tags: Chem Pharm Bull (Tokyo) Source Type: research

Neuroprotective effects of different frequency preconditioning exercise on neuronal apoptosis after focal brain ischemia in rats.
DISCUSSION: Our findings suggested that three times or more per week of high-intensity preconditioning exercise exert neuroprotective effects through the downregulation of the Bax/Bcl-2 ratio and caspase-3 activation after stroke. ABBREVIATIONS: TUNEL: terminal deoxynucleotidyl transferase-mediated biotinylated dUTP nick and labeling; MCAO:middle cerebral artery occlusion; BAX:Bcl-2-associated X protein; Bcl-2: B-cell lymphoma 2; TTC: 2,3,5-triphenyltetrazorlium chloride. PMID: 30822224 [PubMed - as supplied by publisher]
Source: Neurological Research - March 5, 2019 Category: Neurology Tags: Neurol Res Source Type: research

Inhibition of Calcium/Calmodulin-Dependent Protein Kinase II α Suppresses Oxidative Stress in Cerebral Ischemic Rats Through Targeting Glucose 6-Phosphate Dehydrogenase.
Inhibition of Calcium/Calmodulin-Dependent Protein Kinase IIα Suppresses Oxidative Stress in Cerebral Ischemic Rats Through Targeting Glucose 6-Phosphate Dehydrogenase. Neurochem Res. 2019 Mar 27;: Authors: Wei Y, Wang R, Teng J Abstract Ischemic stroke is a leading cause of mortality and morbidity worldwide, and oxidative stress plays a significant role in the ischemia stage and reperfusion stage. Previous studies have indicated that both calcium/calmodulin-dependent protein kinase II (CaMKII) and glucose 6-phosphate dehydrogenase (G6PD) are involved in the oxidative stress. Thus, the aim of this st...
Source: Neurochemical Research - March 26, 2019 Category: Neuroscience Authors: Wei Y, Wang R, Teng J Tags: Neurochem Res Source Type: research

Canagliflozin Inhibits Human Endothelial Cell Proliferation and Tube Formation
In conclusion, the present study identified canagliflozin as a potent inhibitor of human EC proliferation. The anti-proliferative action of canagliflozin is observed in ECs isolated from both the venous and arterial circulation, and is partly due to the blockade of cyclin A expression. In addition, this study found that canagliflozin inhibits tube formation in cultured ECs and mouse aortic rings. Notably, these actions are specific for canagliflozin and not seen with other SGLT2 inhibitors. The ability of canagliflozin to exert these pleiotropic effects on EC function may contribute to both the adverse and salutary actions...
Source: Frontiers in Pharmacology - April 15, 2019 Category: Drugs & Pharmacology Source Type: research

Inhibition of angiotensin II-induced cerebrovascular smooth muscle cell proliferation by LRRC8A downregulation through suppressing PI3K/AKT activation
This study aims to investigate the effect of leucine-rich repeat-containing 8A (LRRC8A), an essential component of volume-sensitive chloride channels, on cerebrovascular smooth muscle cell proliferation. The data showed that LRRC8A expression was increased in mouse brain artery during angiotensin II (AngII)-induced cerebrovascular remodeling. Similarly, AngII also increased the expression of LRRC8A in human brain vascular smooth muscle cells (HBVSMCs). Knockdown of LRRC8A by siRNA significantly inhibited AngII-induced the proliferation, migration, and invasion in HBVSMCs. The inhibition of HBVSMCs proliferation by LRRC8A d...
Source: Human Cell - May 23, 2019 Category: Cytology Source Type: research

CPCGI confers neuroprotection by enhancing blood circulation and neurological function in cerebral ischemia/reperfusion rats.
Authors: Miao Y, Wang R, Wu H, Yang S, Qiu Y Abstract The current study used a rat middle cerebral artery occlusion (MCAO) model with the aim to explore the effects of compound porcine cerebroside and ganglioside injection (CPCGI) on brain ischemia/reperfusion injury in rats. Improvement in the infarct‑side microcirculation and the overall recovery of neurological function were detected by triphenyltetrazolium chloride staining, laser speckle blood flow monitoring, latex perfusion, immunofluorescence and immunoblotting. The results revealed that administration of CPCGI for 7 consecutive days following ischemic ...
Source: Molecular Medicine Reports - July 21, 2019 Category: Molecular Biology Tags: Mol Med Rep Source Type: research

Herbal Compatibility of Ginseng and Rhubarb Exerts Synergistic Neuroprotection in Cerebral Ischemia/Reperfusion Injury of Rats
ConclusionThe herbal compatibility of Ginseng and Rhubarb synergistically exerts neuroprotective function during acute cerebral I/R injury, mainly through reducing the expression of Cx43 and AQP4.
Source: Frontiers in Physiology - September 12, 2019 Category: Physiology Source Type: research

Aggravation of Cerebral Ischemia/Reperfusion Injury by Peroxisome Proliferator-Activated Receptor-Gamma Deficiency via Endoplasmic Reticulum Stress.
CONCLUSIONS This research proved that PPAR-γ protected the brain from cerebral I/R injury by repressing ER stress and indicated that PPAR-γ is a potential target in the treatment of ischemia. PMID: 31588926 [PubMed - in process]
Source: Medical Science Monitor - October 9, 2019 Category: Research Tags: Med Sci Monit Source Type: research

Rapid, label-free detection of cerebral ischemia in rats using hyperspectral imaging
ConclusionsThese results demonstrate the practical utility of HSI for the real-time detection of cerebral ischemia in rats. By providing rapid assessment of brain tissue perfusion, HSI may help doctors recognize ischemic regions quickly and precisely during surgery as well as have great utility in the experimental process.
Source: Journal of Neuroscience Methods - October 19, 2019 Category: Neuroscience Source Type: research