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Table 1.

The effect of 1 mmol l-1 sodium nitroprusside (SNP) on Na+ and K+ content and inulin space in kidney and gill tissue from brown trout

Na+ content (nmol mg-1 wet mass)K+ content (nmol mg-1 wet mass)Inulin space (μl mg-1 wet mass)cGMP concentration (fmol mg-1 protein)
Kidney tissue     
Control 65.8±1.1 78.6±0.6 0.142±0.009 53±4 
SNP 73.3±1.1* 73.6±0.8* 0.139±0.004 469±62* 
Gill tissue     
Control 89.1±1.1 69.9±0.8 0.124±0.004 230±27 
SNP 89.8±1.3 68.9±1.2 0.120±0.005 365±31* 
Na+ content (nmol mg-1 wet mass)K+ content (nmol mg-1 wet mass)Inulin space (μl mg-1 wet mass)cGMP concentration (fmol mg-1 protein)
Kidney tissue     
Control 65.8±1.1 78.6±0.6 0.142±0.009 53±4 
SNP 73.3±1.1* 73.6±0.8* 0.139±0.004 469±62* 
Gill tissue     
Control 89.1±1.1 69.9±0.8 0.124±0.004 230±27 
SNP 89.8±1.3 68.9±1.2 0.120±0.005 365±31* 

The tissues were incubated under standard conditions for 2×30 min. Cyclic GMP (cGMP) concentrations were determined in both tissues following 10 min incubation with or without 1 mmol l-1 SNP.

*

Significant effect of treatment (P<0.05). Values are means± S.E.M. (N=6).

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