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Drug: Acetylcysteine
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Total 28 results found since Jan 2013.

Endothelial glycocalyx injury is involved in heatstroke-associated coagulopathy and protected by N-acetylcysteine
DiscussionOur results indicate that the poor prognosis of HS patients correlates with severe coagulation disorders, coagulation abnormalities in HS rats are associated with the damage of EGCX, and NAC improves HS-induced coagulopathy, probably through its protection against EGCX injury by preventing ROS generation.
Source: Frontiers in Immunology - June 6, 2023 Category: Allergy & Immunology Source Type: research

Fine particulate matter exposure aggravates ischemic injury via NLRP3 inflammasome activation and pyroptosis
CONCLUSION: These results suggested that PM2.5 exposure triggered the activation of NLRP3 inflammasome and pyroptosis under ischemic conditions, which may be mediated by increased ROS production after ischemic stroke. These findings may provide a more enhanced understanding of the interplay between PM2.5 and neuroinflammation and cell death, and reveal a novel mechanism of PM2.5-mediated toxic effects after ischemic stroke.PMID:35403328 | DOI:10.1111/cns.13837
Source: CNS Neuroscience and Therapeutics - April 11, 2022 Category: Neuroscience Authors: Li Gao Jie-Xing Qin Jian-Quan Shi Teng Jiang Fei Wang Chong Xie Qing Gao Nan Zhi Qing Dong Yang-Tai Guan Source Type: research

N-Acetylcysteine: A Review of Clinical Usefulness (an Old Drug with New Tricks)
CONCLUSION: The use of N-acetylcysteine should be considered in a number of conditions as our population ages and levels of glutathione drop. Supplementation may contribute to reducing morbidity and mortality in some chronic conditions as outlined in the article.PMID:34221501 | PMC:PMC8211525 | DOI:10.1155/2021/9949453
Source: Journal of Nutrition and Metabolism - July 5, 2021 Category: Nutrition Authors: Gerry K Schwalfenberg Source Type: research

Ischemic stroke disrupts the endothelial glycocalyx through activation of proHPSE via acrolein exposure Molecular Bases of Disease
In this study, glycosaminoglycans, a component of the endothelial glycocalyx, were studied in the context of ischemic stroke using a photochemically induced thrombosis mouse model. Decreased levels of heparan sulfate and chondroitin sulfate and increased activity of hyaluronidase 1 and heparanase (HPSE) were observed in ischemic brain tissues. HPSE expression in cerebral vessels increased after stroke onset and infarct volume greatly decreased after co-administration of N-acetylcysteine + glycosaminoglycan oligosaccharides as compared with N-acetylcysteine administration alone. These results suggest that the endothelial gl...
Source: Journal of Biological Chemistry - December 25, 2020 Category: Chemistry Authors: Kenta Ko, Takehiro Suzuki, Ryota Ishikawa, Natsuko Hattori, Risako Ito, Kenta Umehara, Tomomi Furihata, Naoshi Dohmae, Robert J. Linhardt, Kazuei Igarashi, Toshihiko Toida, Kyohei Higashi Tags: Glycobiology and Extracellular Matrices Source Type: research

Preventing necroptosis by scavenging ROS production alleviates heat stress-induced intestinal injury.
Conclusion: This study provides strong evidence that HS causes damage to both the small intestine and intestinal epithelial cells, scavenging ROS production can significantly alleviate such RIPK1/RIPK3-dependent necroptosis, mediating HS-induced intestinal damage both in vitro and in vivo. These findings provide a clear target for future mechanism-based therapeutic strategies for patients diagnosed with heat stroke. PMID: 32423248 [PubMed - in process]
Source: International Journal of Hyperthermia - May 21, 2020 Category: Internal Medicine Tags: Int J Hyperthermia Source Type: research

Neuroprotective Effect of Phthalide Derivative CD21 against Ischemic Brain Injury:Involvement of MSR1 Mediated DAMP peroxiredoxin1 Clearance and TLR4 Signaling Inhibition
This study investigated the effects of the phthalide derivative CD21 on ischemic brain injury and the mechanism underlying MSR1-induced resolution of neuroinflammation. Using a rat model of 2  h transient middle cerebral artery occlusion (MCAO), MSR1-induced peroxiredoxin1 (PRX1) clearance in RAW264.7 macrophages were investigated. We show here that CD21 significantly ameliorated infarct volumes and neurological deficits in a dose-dependent manner with a ≥ 12 h therapeutic time w indow. Moreover, administration of 5 mg/kg/day CD21 over 24 h significantly reduced pathological damages, with associated inhibition of...
Source: Journal of NeuroImmune Pharmacology - April 13, 2020 Category: Drugs & Pharmacology Source Type: research

Sirt1-ROS-TRAF6 Signaling-Induced Pyroptosis Contributes to Early Injury in Ischemic Mice
In this study, we evaluated the inflammatory reactions induced by acute ischemia and found that pyroptosis occurred after acute ischemia bothin vivo andin vitro, as determined by interleukin-1 β, apoptosis-associated speck-like protein, and caspase-1. The early inflammation resulted in irreversible ischemic injury, indicating that it deserves thorough investigation. Meanwhile, acute ischemia decreased the Sirtuin 1 (Sirt1) protein levels, and increased the TRAF6 (TNF receptor associated factor 6) protein and reactive oxygen species (ROS) levels. In further exploration, both Sirt1 suppression and TRAF6 activation were foun...
Source: Neuroscience Bulletin - April 5, 2020 Category: Neuroscience Source Type: research

Is Aberrant Reno-Renal Reflex Control of Blood Pressure a Contributor to Chronic Intermittent Hypoxia-Induced Hypertension?
This study demonstrated unaltered vascular conductance in response to lumbar sympathetic stimulation in CIH-exposed rats. Aortic compliance was increased and estimated blood volume was unchanged in CIH-exposed rats. Increased blood pressure was related to an increase in cardiac output, which was confirmed by echocardiography (Lucking et al., 2014). It is suggested therefore that hypertension in the CIH model can be evoked by over-excitation of the cardiac arm of sympathetic nervous system (SNS), even before mechanisms of enhanced peripheral vasoconstriction and endothelial dysfunction are initiated (Naghshin et al., 2009)....
Source: Frontiers in Physiology - April 23, 2019 Category: Physiology Source Type: research

Oral Cannabidiol Prevents Allodynia and Neurological Dysfunctions in a Mouse Model of Mild Traumatic Brain Injury
Conclusion In conclusion, our data demonstrate that mTBI causes late sensorial affective/cognitive deficiencies linked to altered neurotransmitter release at cortical level. Moreover, we showed that chronic CBD treatment reduces behavioral dysfunctions by restoring at least in part cortical biochemical processes. Taken together, our results suggest that CBD could represent a novel approach for the management of neuropsychiatric disorders associated with TBI. Author Contributions CB, LL, and RR conceived and designed the experiments. CB, MI, SB, FR, RI, and RM performed the experiments. GP, LS, SP, RR, LL, and IM analyze...
Source: Frontiers in Pharmacology - April 15, 2019 Category: Drugs & Pharmacology Source Type: research