Table 2. Plasma ion, aldosterone and renin activity measurements in C57BL/6N and C57BL/6J male mice.
Strain | Diet | n | Na+ | K+ | Cl- | Mg2+ | Aldosterone | Renin activity |
---|---|---|---|---|---|---|---|---|
mmol/l | mmol/l | mmol/l | mmol/l | pg/ml | ng/ml/hr | |||
C57BL/6N | NS | 9 | 150.2±0.4 | 4.2±0.1 | 114.3±0.4 | 0.99±0.03 | 336±51 | 80±5 |
LS | 9 | 150.1±0.5 | 4.0±0.2 | 112.0±0.4* | 0.87±0.02* | 541±61* | 177±33* | |
HS | 8 | 148.6±0.5 | 4.5±0.2 | 113.6±0.3 | 0.97±0.03 | ≤36* | 48±5 * | |
HS/LK | 8 | 151.3±0.7 | 4.3±0.2 | 112.5±1 | 1.04±0.04 | ≤36* | 34±6* | |
C57BL/6J | NS | 10 | 151.5±0.4 | 4.5±0.1 | 117.1±0.7 | 1.00±0.03 | 272±16 | 76±16 |
LS | 10 | 150.0±0.4 | 4.1±0.1 | 114.1±0.7* | 0.91±0.03 | 562±52* | 174±21* | |
HS | 9 | 149.3±0.5* | 4.5±0.2 | 114.5±0.4* | 0.94±0.04 | 66±4* | 38±5* | |
HS/LK | 8 | 150.5±0.6 | 3.3±0.3* | 114.6±0.9* | 1.01±0.03 | 75±4* | 12±2* |
Plasma ion measurements performed on a third and separate cohort of 18 C57BL/6N and 20 C57BL/6J male mice, under a modified light/dark cycle. NS = normal salt diet, LS = low salt diet, HS = high Na+/normal K+ diet and HS/LK = high Na+/low K+ diet. Data represented as mean +/- SEM. One-way ANOVA per strain followed by Tukey’s post-hoc test
*: p<0.05 compared to NS diet.