NO- induced neuromuscular facilitation in the phrenic nerve diaphragm preparation of rats is Ca++ dependent - DOI: 10.4025/actascibiolsci.v26i4.1528
DOI:
https://doi.org/10.4025/actascibiolsci.v26i4.1528Keywords:
cálcio, óxido nítrico, nitroprussiato de sódioAbstract
The research was carried out to verify whether the neuromuscular effects induced by nitric oxide (NO) might depend on extracellular level of Ca++. The donor of NO, sodium nitroprusside (SNP), and the analogue of cGMP, 8-Br-cGMP, increased the muscular contraction amplitude (MCA) in preparations indirectly stimulated at 0.2 Hz, but did not produce any effect when the nutrient solution was exchanged by Krebs buffer low Ca++/ high Mg++. SNP and 8-Br-cGMP reduced the MCA in preparations directly stimulated. Such effect was not recorded in Krebs buffer low Ca++/ high Mg++. Data suggest that the neuromuscular effects induced by NO or cGMP depend on extracellular level of Ca++Downloads
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Published
2008-03-31
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Biology Sciences
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How to Cite
NO- induced neuromuscular facilitation in the phrenic nerve diaphragm preparation of rats is Ca++ dependent - DOI: 10.4025/actascibiolsci.v26i4.1528. (2008). Acta Scientiarum. Biological Sciences, 26(4), 471-473. https://doi.org/10.4025/actascibiolsci.v26i4.1528
