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Polymyositis is an inflammatory myopathy characterized by muscle invasion of T-cells penetrating the basal lamina and displacing the plasma membrane of normal muscle fibers. In order to understand the different adhesive mechanisms at the T-cell surface, Schubert randomly selected 17 proteins expressed at the T-cell surface and studied them using MELK technique, among which 15 proteins are picked up...
Recent studies have indicated postmenopausal women receiving hormone replacement therapy (HRT) have more adverse outcomes of peripheral arterial disease after vascular reconstruction, including increased intimal hyperplasia (IH) and restenosis. The major cellular processes contributing to IH pathogenesis are extracellular matrix (ECM) degradation and vascular smooth muscle cell (VSMC) proliferation,...
A multiscale mathematical model was developed to distinguish responses of external and cellular respiration to exercise of moderate intensity. The simulation shows that the characteristic MRTs of external and cellular respiration are similar even when a transit delay exists between the tissue cells and the lungs. The results of our model show that the O2 transport processes from lungs to muscle are...
Although ventricular fibrillation (VF) is the prevalent cause of sudden cardiac death, the mechanisms that underlie VF remain elusive. One possible explanation is that VF is driven by a single robust rotor that is the source of wavefronts that break-up due to functional heterogeneities. Previous 2D computer simulations have proposed that a heterogeneity in background potassium current (IK1) can serve...
Although ventricular fibrillation (VF) is the prevalent cause of sudden cardiac death, the mechanisms that underlie VF remain elusive. One possible explanation is that VF is driven by a single robust rotor that is the source of wavefronts that break-up due to functional heterogeneities. Previous 2D computer simulations have proposed that a heterogeneity in background potassium current (IK1) can serve...
This computational study investigates the effects of epicardial stimulation on healthy and mutant excitable tissue. A heterogeneous wild-type (WT) model of human ventricular electrophysiology and a modified version simulating short QT (SQT) syndrome were used. The utilized anisotropic anatomical structures were both a slice cut out of a human left ventricular geometry and a beam from endocardium to...
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