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Table 1.

In vitro inhibition of Na+,K+-ATPase activity by NO in gill tissue from seawater-acclimated Atlantic salmon

TreatmentNa+,K+-ATPase activity (nmol Rb+mg−1 wet mass h−1)*
Control 2.95±0.17a 
SNP (1 mmol l−12.03±0.16b 
NOC-15(0.5 mmol l−12.09±0.17b 
TreatmentNa+,K+-ATPase activity (nmol Rb+mg−1 wet mass h−1)*
Control 2.95±0.17a 
SNP (1 mmol l−12.03±0.16b 
NOC-15(0.5 mmol l−12.09±0.17b 

Values are means ± s.e.m.(N=10). Different letters indicate significant difference (one-way block ANOVA followed by Tukey's HSD test; P<0.01).

*

Measured as ouabain-sensitive Rb+ uptake.

The samples were pre-incubated for 10 min with the NO donors before the assay.

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