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Matthew A Meissner M.D. Vitaly Margulis M.D. Bishoy A Gayed M.D. 《International journal of urology》2014,21(11):1105-1105
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Design,synthesis, biological evaluations,molecular docking,and in vivo studies of novel phthalimide analogs 下载免费PDF全文
Magdy A. H. Zahran Bishoy El‐Aarag Ahmed B. M. Mehany Amany Belal Ali S. Younes 《Archiv der Pharmazie》2018,351(5)
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Identifying the cause of unexplained cardiac arrest is critical for appropriate management of both survivors and their family members. Aborted cardiac arrests whose cause remains unknown following investigation with a surface ECG, echocardiogram, and coronary angiogram are deemed unexplained. Many of these unexplained arrests are felt to be secondary to concealed forms of cardiac channelopathies and latent or subtle cardiomyopathies. This recognition has led to evaluating a diagnostic role for a series of additional investigations, including advanced imaging, genetic testing, and provocative forms of testing, including sodium channel blockade and treadmill testing. Despite evidence of an improved diagnostic yield through their systematic usage, clinical guidelines have yet to endorse a formal algorithm delineating investigations that must be performed before assigning a label of idiopathic ventricular fibrillation, which has resulted in markedly variables thresholds for concluding this diagnosis. Debate remains regarding the need for an invasive electrophysiology study among these patients, though identification of arrhythmic culprits requiring intracardiac electrograms for diagnostic confirmation have suggested a potential role when an initial comprehensive evaluation is unrevealing. Although progress is being made, the sizeable portion of arrests that remain unexplained despite completion of a comprehensive evaluation highlights an ongoing need for further research and additional tools to help unravel the ongoing mysteries of these near fatal events. 相似文献
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Pradyumna Agasthi Hasan Ashraf Sai Harika Pujari Marlene Girardo Andrew Tseng Farouk Mookadam Nithin Venepally Matthew R Buras Bishoy Abraham Banveet K Khetarpal Mohamed Allam Siva K Mulpuru MD Mackram F Eleid Kevin L Greason Nirat Beohar John Sweeney David Fortuin David R Jr Holmes Reza Arsanjani 《World journal of cardiology》2023,15(3):95-105
BACKGROUND Atrioventricular block requiring permanent pacemaker(PPM) implantation is an important complication of transcatheter aortic valve replacement(TAVR).Application of machine learning could potentially be used to predict preprocedural risk for PPM.AIM To apply machine learning to be used to predict pre-procedural risk for PPM.METHODS A retrospective study of 1200 patients who underwent TAVR(January 2014-December 2017) was performed. 964 patients without prior PPM were included for a 30-d ... 相似文献
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Thallas-Bonke V Lindschau C Rizkalla B Bach LA Boner G Meier M Haller H Cooper ME Forbes JM 《Diabetes》2004,53(11):2921-2930
This study investigated the role of advanced glycation end products (AGEs) in mediating protein kinase C (PKC) isoform expression in diabetic nephropathy. In vitro, vascular smooth muscle cells incubated in a high-glucose (25-mmol/l) medium demonstrated translocation and increased expression of PKC-alpha as compared with those from a low-glucose (5-mmol/l) environment. Coincubation with the cross-link breaker ALT-711 and, to a lesser extent, with aminoguanidine, an inhibitor of AGE formation, attenuated the increased expression and translocation of PKC-alpha. Streptozotocin-induced diabetic rats were randomized to no treatment, treatment with ALT-711, or treatment with aminoguanidine. Diabetes induced increases in PKC-alpha as well as in the -betaI, -betaII, and -epsilon isoforms. Treatment with ALT-711 and aminoguanidine, which both attenuate renal AGE accumulation, abrogated these increases in PKC expression. However, translocation of phosphorylated PKC-alpha from the cytoplasm to the membrane was reduced only by ALT-711. ALT-711 treatment attenuated expression of vascular endothelial growth factor and the extracellular matrix proteins, fibronectin and laminin, in association with reduced albuminuria. Aminoguanidine had no effect on VEGF expression, although some reduction of fibronectin and laminin was observed. These findings implicate AGEs as important stimuli for the activation of PKC, particularly PKC-alpha, in the diabetic kidney, which can be directly inhibited by ALT-711. 相似文献