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Volume 3 (1978)
- Issue 6 Pages 386-
- Issue 5 Pages 308-
- Issue 4 Pages 232-
- Issue 3 Pages 154-
- Issue 2 Pages 78-
- Issue 1 Pages 2-
Volume 3, Issue 6
Displaying 1-7 of 7 articles from this issue
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Masahiro Nakano1978 Volume 3 Issue 6 Pages 386-392
Published: November 01, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESS -
Gotaro Toda1978 Volume 3 Issue 6 Pages 393-400
Published: November 01, 1978
Released on J-STAGE: October 21, 2010
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Yoshinori Nozawa1978 Volume 3 Issue 6 Pages 401-418
Published: November 01, 1978
Released on J-STAGE: October 21, 2010
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Hiroyuki Ohshima1978 Volume 3 Issue 6 Pages 419-426
Published: November 01, 1978
Released on J-STAGE: October 21, 2010
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Naobumi Ishida, Hitoshi Suzuki, Isao Inoue, Kenzo Kurihara, Yonosuke K ...1978 Volume 3 Issue 6 Pages 427-434
Published: November 01, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESS1. Structural changes of surface membrane of Plgsarum polycephalum were studied by examining the amount of 14C-p-chloromercuribenzoate or 125I bound to plasmodia and the molecular weight distribution of the labelled materials on SDS polyacrylamide gel electrophoresis.
2. By receiving the repellents such as fructose, NaCl, CaCl2 and LaCl3, the functional groups of the membrane reactable to 14C-PCMB or 125I were increased, while they were decreased appreciably under the presence of the attractants such as glucose, NaH2PO4, c-AMP and Ca (H2PO4) 2 in the concentration range around the respective thresholds for chemotaxis.
3. By eliminating the salt stimuli from the external medium, part of the macromolecules exposed on the surface membrane were released into the external medium, and they were supplied from the interior of the cell by adding the salt stimuli again.
4. EDTA-treatment of the plasmodium which had been found to modify the positive chemotaxis caused a structural change of the membrane involving the release of the membrane macromolecules.View full abstractDownload PDF (1270K) -
Takashi Ban1978 Volume 3 Issue 6 Pages 435-441
Published: November 01, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSMembrane action potentials of mammalian ventricular myocardial fibers were computed according to a mathematical model proposed by Beeler and Reuter.Eight simultaneous differential equations were solved by Runge-Kutta-Gill's methods on a sudden displacement of the membrane potential from the resting level of-84 mV.At the threshold displacement to-60mV, the computed action potential was similar to the one by the above authors in action potential duration but differed from that in the pattern of action potential upstroke.Because of the graded response patterns of membrane action potential, these patterns were studied in detail by changing the displacement from-60 to-5O mV. The difference of the results of actual computation from those of an equation of convenient approximation was indicated. Antiarrhythmic agents of quinidine type are supposed to reduce the upstroke velocity of action potentials by affecting some parameters which govern the sodium inward current. The computation indicates that with a similar extent of a reduction of Vmax, drugs which reduce Na equilibrium potential would be expected to reduce overshoot and the membrane potential at the level of Vmax more markedly than drugs which reduce αj or gNa.View full abstractDownload PDF (806K) -
Ichiro Hara1978 Volume 3 Issue 6 Pages 445-451
Published: November 01, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSDownload PDF (989K)
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