A DNA transfection method by laser microbeam pricking has been recently reported (Kurata, S. et al. Exp. Cell Res. 162, 372 (1986]. The volume of external fluid transferred into the cell by the method was determined through the injection of diphtheria toxin fragment A (Yamaizumi, M. et al. Cell 15, 245 (1978]. Using these results and the results on laser DNA transfection efficiency (Kurata, S. ...

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Activation of factor VIII (FVIII) by thrombin plays a fundamental role in the amplification of the coagulation cascade and takes place through specific proteolytic cleavages at Arg(372), Arg(740) and Arg(1689). Full FVIII activation requires cleavage at Arg(372), a process involving the alpha-thrombin exosite-II; referred to as heparin-binding site (HBS). The present study was aimed at investig...

BACKGROUND Tau protein is implicated in the pathogenesis of neurodegenerative disorders such as tauopathies including Alzheimer disease, and Tau fibrillization is thought to be related to neuronal toxicity. Physiological inhibitors of Tau fibrillization hold promise for developing new strategies for treatment of Alzheimer disease. Because protein disulfide isomerase (PDI) is both an enzyme and ...