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Klotho improves diabetic cardiomyopathy by suppressing the NLRP3 inflammasome pathway
Publication date: Available online 15 August 2019Source: Life SciencesAuthor(s): Xuelian Li, Zhiyang Li, Bingong Li, Xianjie Zhu, Xingjun LaiAbstractAimsNLRP3 inflammasome activation is essential for the development and prognosis of diabetic cardiomyopathy (DCM). The anti-aging protein Klotho is suggested to modulate tissue inflammatory responses. The aim of the present study was to examine the protective effects of Klotho on DCM.Main methodsA streptozotocin-induced diabetes mouse model was established to assess the effects of Klotho in vivo, which was administered for 12 weeks. The characteristics of type 1 DCM were eva...
Source: Life Sciences - August 18, 2019 Category: Biology Source Type: research

Cytotoxic and genotoxic effects mediated by M2 muscarinic receptor activation in human glioblastoma cells
In conclusion, in addition to a cytostatic effect previously described, in the present study we have better characterized the mechanisms causing the cytotoxic effects and the apoptotic cell death in glioblastoma cells after M2 receptor activation. These data allow to consider this receptor a new interesting therapeutic tool for the glioblastoma treatment.
Source: Neurochemistry International - October 10, 2015 Category: Neuroscience Source Type: research

Reactive oxygen species production has a critical role in hypoxia-induced Stat3 activation and angiogenesis in human glioblastoma
In this study, we explored the possible implication of reactive oxygen species (ROS) in hypoxia-driven Stat3 activation in human glioblastoma. We found that hypoxic stress increased ROS production as well as Stat3 activation and that ROS inhibitors (diphenyleneiodonium, rotenone and myxothiazol) and an antioxidant (N-acetyl-l-cysteine) blocked Stat3 activation under hypoxic conditions. To determine a major route of ROS production, we tested whether nicotinamide adenine dinucleotide phosphate oxidase 4 (Nox4) is involved in hypoxia-induced ROS production. Nox4 expression was found to be increased at both mRNA and protein le...
Source: Journal of Neuro-Oncology - August 21, 2015 Category: Cancer & Oncology Source Type: research

PUMA is invovled in ischemia/reperfusion-induced apoptosis of mouse cerebral astrocytes
Publication date: 22 January 2015 Source:Neuroscience, Volume 284 Author(s): H. Chen , M. Tian , L. Jin , H. Jia , Y. Jin PUMA (p53-upregulated modulator of apoptosis), a BH3-only member of the Bcl-2 protein family, is required for p53-dependent and p53-independent forms of apoptosis. PUMA has been invovled in the onset and progress of several diseases, including cancer, acquired immunodeficiency syndrome, and ischemic brain disease. Although many studies have shown that ischemia and reperfusion (I/R) can induce the apoptosis of astrocytes, the role of PUMA in I/R-mediated apoptosis of cerebral astrocyte apoptosis remain...
Source: Neuroscience - November 25, 2014 Category: Neuroscience Source Type: research