Actin-related gelation of Ehrlich tumour cell extracts is reversibly inhibited by low concentrations of Ca2+.
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Biomedical subjects
Publications and source records attributed to N Mimura.
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To study the carbohydrate metabolism in uremic patients, the intravenous glucose tolerance test (iv GTT) and insulin sensitivity test were investigated on 69 patients with chronic renal failure, 27 of whom were under the dialysis treatment. 1) Abnormal K-values averaging 1.05 were obtained in uremic patients (creatinine clearance less than 20 ml/min). 2) Carbohydrate intolerance in uremic patients was corrected with regular dialysis and the improvement was correlated with the duration of dialyses. 3) The mechanisms of improvement in carbohydrate metabolism were different between the short-term dialysis group (less than 12 months of dialysis) and the long-term group (more than 12 months). Enhanced secretion of insulin seemed to be the main cause of this improvement in the former, while the correction of impaired sensitivity to insulin in peripheral tissues in the latter.
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Changes in the in vivo luminescence, respiratory activities, contents of cytochromes, extractable luciferase and NAD(P)H-FMN reductase during growth of the wild (bright) strain of Photobacterium phosphoreum and its dim mutant were determined. The intensity of the in vivo luminescence per cell increased 10 times in the wild strain and 750 times in the dim strain during logarithmic growth, while the contents of luciferase and NAD(P)H-FMN reductase remained almost constant. It is suggested that a characteristic change in the mode of competition of the luminescence reaction system with another electron transfer chain involving cytochromes for NAD(P)H take place during the growth of this bacterium.
The regional anticoagulating effects of FUT-175 (protease inhibitor), and regional or low dose heparinization (RH or LH) were examined comparatively by randomized controlled protocol on 157 hemodialysis (HD) patients with hemorrhagic complications. Increases in bleeding because of HD were milder in FUT as compared with RH and LH, and the bleeding time after needle removal was significantly shorter in FUT than that in heparin. During HD, the prolongation of celite activated coagulation time (CCT) of the intracorporeal blood was significantly milder in FUT than in heparin and that of blood passing through the dialyzer was increased in FUT compared with LH. FUT showed no prolongation of CCT after HD. These results indicate that FUT is a more useful and safer anticoagulant for HD patients with hemorrhagic complications than any regional anticoagulating method using heparin (RH or LH).