Significance of glucose for mechanical activity, flavin and pyridine nucleotide oxidation-reduction changes in isolated rat portal veins under ACh-stimulation

1980 ◽  
Vol 75 (6) ◽  
pp. 739-746
Author(s):  
A. M. Linke ◽  
H. Heinle ◽  
E. Betz
Keyword(s):  
Pyridine Nucleotide ◽  
Mechanical Activity ◽  
Oxidation Reduction ◽  
Portal Veins ◽  
Isolated Rat ◽  
Pyridine Nucleotide Oxidation

scholarly journals Flavin and Pyridine Nucleotide Oxidation-Reduction Changes in Perfused Rat Liver

1969 ◽  
Vol 244 (9) ◽  
pp. 2317-2324
Author(s):  
R Scholz ◽  
R G Thurman ◽  
J R Williamson ◽  
B Chance ◽  
T Bücher
Keyword(s):  
Rat Liver ◽  
Pyridine Nucleotide ◽  
Perfused Rat Liver ◽  
Oxidation Reduction ◽  
Pyridine Nucleotide Oxidation

Vanadate Stimulation of Pyridine Nucleotide Oxidation in Mammalian Liver Microsomal Membranes

1988 ◽  
pp. 777-780
Author(s):  
Roger A. Coulombe ◽  
David W. Reif ◽  
Randal J. Keller ◽  
Donald P. Briskin ◽  
Steven D. Aust ◽  
...  
Keyword(s):  
Pyridine Nucleotide ◽  
Mammalian Liver ◽  
Microsomal Membranes ◽  
Pyridine Nucleotide Oxidation ◽  
Stimulation Of

Is tubulin involved in the electrically-induced mechanical activity of the isolated rat sciatic nerve?

1980 ◽  
Vol 36 (4) ◽  
pp. 425-427
Author(s):  
C. E. Valenti ◽  
Martha F. de Gimeno ◽  
D. P. Cardinali ◽  
A. L. Gimeno
Keyword(s):  
Sciatic Nerve ◽  
Mechanical Activity ◽  
Rat Sciatic Nerve ◽  
Isolated Rat

Thallous ion activation of p-nitrophenylphosphatase of rat myometrium plasma membrane

1981 ◽  
Vol 59 (11) ◽  
pp. 1180-1183 ◽  
Author(s):  
A. K. Grover ◽  
M. Frederickson ◽  
E. E. Daniel
Keyword(s):  
Plasma Membrane ◽  
Enzyme Activities ◽  
Inorganic Phosphate ◽  
Membrane Vesicles ◽  
Mechanical Activity ◽  
Krebs Solution ◽  
Plasma Membrane Vesicles ◽  
Ion Activation ◽  
Maximal Activation ◽  
Isolated Rat

Addition of thallous ion (Tl+) inhibited the spontaneous mechanical activity of rat myometrium in K-free Krebs solution with an I50 value of 30 μM. The corresponding value for I50 for similar inhibition by addition of K+ was 150 μM. Tl+ as well as K+-activated p-nitrophenylphosphatase (PNPPase) of isolated rat myometrium plasma membrane vesicles. Half maximal activation was caused by 0.47 mM Tl+ or 1.6 mM K+. Maximal enzyme activities obtained using Tl+ and K+ were comparable. The Km values for the substrate p-nitrophenylphosphate using Tl+ (1.24 mM) and K+ (1.46 mM) were also similar. Activation by either ion was inhibited by ouabain, Na+, inorganic phosphate, and vanadate (V + 5). The results suggest that Tl+ can substitute for K+ for activation of the Na–K pump of rat myometrium plasma membrane.

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