. | Urea . | . | Glucose . | . | ||
---|---|---|---|---|---|---|
. | Saline treated . | Urea loaded . | Saline treated . | Urea loaded . | ||
Unfrozen | ||||||
Plasma | 9.8±0.8 | 69.6±2.5* | 1.9±0.4 | 2.4±0.2 | ||
Heart | 14.6±1.5 | 80.6±5.3* | 1.7±0.4 | 1.7±0.3 | ||
Liver | 15.7±2.8 | 72.1±5.3* | 3.9±0.4 | 4.1±0.3 | ||
Muscle | 12.1±1.7 | 47.8±5.9* | 1.0±0.2 | 1.3±0.1 | ||
Frozen/thawed | ||||||
Plasma | 11.7±1.5 | 60.4±2.0* | 28.1±2.0 | 42.3±3.8* | ||
Heart | 18.7±3.5 | 56.2±1.1* | 18.6±2.1 | 53.7±3.9* | ||
Liver | 21.1±3.6 | 57.2±1.6* | 19.9±2.1 | 69.9±10.9* | ||
Muscle | 19.5±3.3 | 56.1±2.2* | 18.1±2.6 | 40.9±2.9* |
. | Urea . | . | Glucose . | . | ||
---|---|---|---|---|---|---|
. | Saline treated . | Urea loaded . | Saline treated . | Urea loaded . | ||
Unfrozen | ||||||
Plasma | 9.8±0.8 | 69.6±2.5* | 1.9±0.4 | 2.4±0.2 | ||
Heart | 14.6±1.5 | 80.6±5.3* | 1.7±0.4 | 1.7±0.3 | ||
Liver | 15.7±2.8 | 72.1±5.3* | 3.9±0.4 | 4.1±0.3 | ||
Muscle | 12.1±1.7 | 47.8±5.9* | 1.0±0.2 | 1.3±0.1 | ||
Frozen/thawed | ||||||
Plasma | 11.7±1.5 | 60.4±2.0* | 28.1±2.0 | 42.3±3.8* | ||
Heart | 18.7±3.5 | 56.2±1.1* | 18.6±2.1 | 53.7±3.9* | ||
Liver | 21.1±3.6 | 57.2±1.6* | 19.9±2.1 | 69.9±10.9* | ||
Muscle | 19.5±3.3 | 56.1±2.2* | 18.1±2.6 | 40.9±2.9* |
Concentrations of urea and glucose in plasma are μmol ml-1and in organs are μmol g–1 fresh tissue. Values are means± s.e.m.; N=5 frogs per group
Asterisk denotes that the mean for the urea-loaded group differed significantly (P<0.05) from its saline-treated counterpart