Table 1.
Guinea Pig (Normal) |
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---|---|---|---|---|
Isolated Myofibroblasts, Intracellular Ca2+/Membrane Current Transients | Cell Pairs, Intracellular Ca2+/Membrane Current Transients | Muscle Strip with Mucosa, Isometric Tension | Muscle Strip No. Mucosa, Isometric Tension | |
Control | Stable cells (n = 90) | Stable cells (n = 47) | SA (n=6) | Reduced SA (n = 6) |
ATP/UTP | Transients generated (n = 75) | Transients augmented (n = 29) | SA (n=6) | No increase in SA (n = 6) |
Low pH | Transients generated (n = 6) | Transients augmented (n = 6) | ||
NO donors | Transients reduced (n = 4) | |||
Capsaicin | Current transient reduced (n = 5) | |||
Glivec | Augmentation abolished (n = 12) |
n, No. of repeat observations from separate preparations for each experiment; SA, spontaneous activity; NO, nitric oxide.