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Importantly, patients with ulcerative colitis (UC) had significantly decreased ESRRA expression in intestinal mucosal tissues that correlated with disease activity, suggesting clinical relevance of ESRRA in UC. Taken together, our results show that ESRRA contributes to intestinal homeostasis through autophagy activation and gut microbiota control to protect the host from detrimental inflammation and dysfunctional mitochondria.
Placenta accreta (PA) can be life-threatening due to postpartum hemorrhage and may lead to cesarean hysterectomy. FR 180204 price We investigated the expression of Matrix metalloproteinase-2 (MMP-2), β-catenin, E-cadherin (E-CAD), transforming growth factor β1 (TGF-β1), glutathione peroxidase 1 (GPx-1), reduced glutathione (GSH) and superoxide dismutase (SOD) in PA compared to controls to determine if alterations may contribute to PA. Materials and methods Twenty six PA and 31 controls were evaluated immunohistochemically for expression of MMP-2, β-catenin and E-CAD on villous and extravillous trophoblasts. TGF-β1 and GPx-1 mRNA levels were evaluated by rt-PCR. We measured biochemical levels of GSH and SOD. Results Significant increases of MMP-2 immunoexpression, GPx-1 mRNA, SOD and GSH levels, decreases in immunoexpression of E-CAD and β-catenin and TGF-β1 mRNA were found in PA. Conclusion These findings suggest that loss of cell-cell adhesion and increased antioxidants level may have a role in PA.
Placenta accreta (PA) can be life-threatening due to postpartum hemorrhage and may lead to cesarean hysterectomy. We investigated the expression of Matrix metalloproteinase-2 (MMP-2), β-catenin, E-cadherin (E-CAD), transforming growth factor β1 (TGF-β1), glutathione peroxidase 1 (GPx-1), reduced glutathione (GSH) and superoxide dismutase (SOD) in PA compared to controls to determine if alterations may contribute to PA. Materials and methods Twenty six PA and 31 controls were evaluated immunohistochemically for expression of MMP-2, β-catenin and E-CAD on villous and extravillous trophoblasts. TGF-β1 and GPx-1 mRNA levels were evaluated by rt-PCR. We measured biochemical levels of GSH and SOD. Results Significant increases of MMP-2 immunoexpression, GPx-1 mRNA, SOD and GSH levels, decreases in immunoexpression of E-CAD and β-catenin and TGF-β1 mRNA were found in PA. Conclusion These findings suggest that loss of cell-cell adhesion and increased antioxidants level may have a role in PA.The innate immune restriction factor SAMHD1 can inhibit diverse viruses in myeloid cells. Mechanistically, SAMHD1 inhibits lentiviral replication including HIV-1 by depleting the nucleotide pool to interfere with their reverse transcription. Equine infectious anemia virus (EIAV) is an ancient lentivirus that preferentially attacks macrophages. However, the mechanism by which EIAV successfully establishes infection in macrophages with functional SAMHD1 remains unclear. Here, we demonstrate that while equine SAMDH1 can limit EIAV replication in equine macrophages at the reverse transcription stage, the antiviral effect is counteracted by the well-known transcriptional regulator Rev, which downregulates equine SAMHD1 through the lysosomal pathway. Remarkably, Rev hijacks BECN1 (beclin 1) and PIK3C3 to mediate SAMHD1 degradation in a canonical macroautophagy/autophagy-independent pathway. Our study illustrates that equine lentiviral Rev possesses important functions in evading cellular innate immunity in additionnown non-essential domain; NES nuclear export signal; NLS localization signal; NS statistically non-significant; PIK3C3 phosphatidylinositol 3-kinase catalytic subunit type 3; RBD RNA binding domain; RT reverse transcriptase; siRNAs small interfering RNAs; SAMHD1 SAM and HD domain containing deoxynucleoside triphosphate triphosphohydrolase 1; SIV simian immunodeficiency virus; VN C-terminal residues of Venus 174 to 238; VC N-terminal residues 2 to 173 of Venus.During the COVID-19 pandemic, methanol-containing beverages' consumption has risen because people mistakenly believed that alcohol might protect them against the virus. This study aimed to evaluate the prevalence and predisposing factors of brain lesions in patients with methanol toxicity and its outcome. A total of 516 patients with confirmed methanol poisoning were enrolled in this retrospective study, of which 40 patients underwent spiral brain computed tomography (CT) scan. The presence of unilateral or bilateral brain necrosis was significantly higher in the non-survival group (p = 0.001). Also, intracerebral hemorrhage (ICH) and brain edema were prevalent among patients that subsequently died (p = 0.004 and p = 0.002, respectively). Lower Glasgow Coma Scale (GCS) was related to a higher mortality rate (p = 0.001). The mortality rate in chronic alcohol consumption was lower than the patients who drank alcohol for the first time (p = 0.014). In conclusion, increasing the number of methanol poisoning and its associated mortality and morbidity should be considered a threat during the COVID-19 pandemic.Parkinson's disease is a brain disorder that is featured by shaking palsy, which affect the motor system. The pathogenesis of Parkinson's disease has been ascribed to neurodegenerative disorder, neural oxidative stress, neuroinflammation, and neurotransmitter disorder. In the present study, we explored the influence of Sirt1/PGC1α pathway in regulating BV-2 cells viability under TNFα treatment. Our results demonstrated that the activity of Sirt1/PGC1α pathway was significantly downregulated in response to TNFα treatment. Reactivation of Sirt1/PGC1α pathway through supplementation of SRT1720 significantly elevated the viability of BV-2 cells under an in vitro neuroinflammation model. Therefore, our results report a novel signaling pathway responsible for the survival of neuron under neuroinflammation. Re-activation of Sirt1/PGC1α pathway may be a potential therapeutic approach for the treatment of Parkinson's disease through enhancing neuronal viability.Autophagy, an evolutionally conserved cellular degradation process, plays critical roles in plant development and stress response. Despite the wealth of information on the vital role of autophagy in responses to environmental stresses, little is known about the regulation of autophagy. In this study, we demonstrated that spermidine (Spd), a kind of polyamine, was involved in the regulation of salt tolerance through activating the expression of ATG (autophagy-related) genes and the formation of autophagosomes in cucumber under salt stress. Furthermore, NADPH oxidase-derived apoplastic H2O2-mediated Spd-induced salt tolerance and autophagy. Exogenous Spd significantly increased the tolerance to salt stress and inhibited the accumulation and ubiquitination of insoluble proteins. Foliar application of Spd promoted the transcript levels of ATG genes and autophagosomes formation. Besides, Spd induced the expression of RBOH (respiratory burst oxidase homolog), and the accumulation of H2O2 both in leaves and roots. However, either pretreatment with dimethylthiourea (DMTU, an H2O2 scavenger) or diphenyleneiodonium chloride (DPI, an inhibitor of NADPH oxidase) reduced Spd-induced accumulation of apoplastic H2O2.
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