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https://www.selleckchem.com/products/roc-325.html Current data on cardiac surgical practices for people living with human immunodeficiency virus (HIV) are lacking. We hypothesized that cardiac surgeons would consider people living with HIV as candidates for the full scope of cardiac surgery, including heart transplant for these patients. We conducted a prospective survey of 155 cardiac surgeons across Canada to evaluate their current clinical perceptions regarding cardiac surgery in people living with HIV. Specifically, we evaluated their assessment of eligibility toward a wide scope of cardiac surgeries by using representative clinical scenarios. A total of 63 surgeon responses (40.6%) were completed. The majority of surgeons agreed that a 50-year-old man with HIV and no other comorbidities, who had been receiving combination antiretroviral therapy for 5 years with an undetectable viral load since starting therapy and a CD4 count greater than 350 cells/μL, would be a candidate for valve replacement (73%), valve repair surgery (74.6%), or coronary arter contemporary, high-quality evidence in this patient population. Lung transplant ischemia-reperfusion injury is typified by toxic metabolites and oxygen free radicals leading to worse graft function. Catalase is an enzyme involved in oxidative-stress detoxification. We hypothesize that direct delivery of highly concentrated polyethylene glycol-catalase (PEG-CAT) during normothermic exvivo lung perfusion (EVLP) significantly reduces ischemia-reperfusion injury. To demonstrate protection, primary culture porcine endothelial cells were treated with PEG-CAT (0 to 1250 U/mL) in a model of oxidative stress (400 μM H o ). Invivo, rat lungs were subjected to 0 hours or 1 hour of warm ischemic injury and 2 hours of EVLP with or without PEG-CAT. Perfusate was collected throughout the perfusion duration and tissue was collected at the end. Tissue and perfusate underwent analysis for markers of apoptosis and a biometric signature

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