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Intercellular dye-coupling in intestinal smooth muscle. Are gap junctions required for intercellular coupling?

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Summary

The dye Lucifer Yellow was injected into single smooth muscle cells in the guinea pig small intestine in order to study intercellular coupling. Dye-coupling was observed in both the circular and longitudinal muscle layers and was markedly reduced when the intercellular pH was lowered. These results suggest the presence of gap junctions among intestinal muscle cells, but are inconsistent with previous ultrastructural studies that failed to demonstrate such junctions in the longitudinal muscle.

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Authors and Affiliations

  1. Laboratory of Experimental Surgery, Hadassah University Hospital, Mount Scopus, 91240, Jerusalem, Israel

    O. Zamir & M. Hanani

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  1. O. Zamir
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  2. M. Hanani
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Zamir, O., Hanani, M. Intercellular dye-coupling in intestinal smooth muscle. Are gap junctions required for intercellular coupling?. Experientia 46, 1002–1005 (1990). https://doi.org/10.1007/BF01940654

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  • DOI: https://doi.org/10.1007/BF01940654

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