Article Figures & Data
Figures
- Figure 1.
Effect of lemonade and orange juice on net gastrointestinal absorption of alkali. Horizontal lines indicate group means. •, normal volunteers; ○, stone formers. *P < 0.05 versus control; †P < 0.05 versus lemonade.
- Figure 2.
Effect of lemonade and orange juice on titratable acidity. Horizontal lines indicate group means. •, normal volunteers; ○, stone formers. *P < 0.05 versus control; †P < 0.05 versus lemonade.
- Figure 3.
Effect of lemonade and orange juice on urinary citrate excretion. Horizontal lines indicate group means. •, normal volunteers; ○, stone formers. *P < 0.05 versus control; †P < 0.05 versus lemonade.
- Figure 4.
Effect of lemonade and orange juice on urinary pH. Horizontal lines indicate group means. •, normal volunteers; ○, stone formers. *P < 0.05 versus control; †P < 0.05 versus lemonade.
Tables
Parameter Control Lemonade Orange Juice ANOVA P BUN (mg/dl) 11 ± 3 10 ± 3 11 ± 3b <0.05 Cr (mg/dl) 0.9 ± 0.2 0.9 ± 0.2 0.9 ± 0.2 0.61 Na+ (mEq/L) 138 ± 2 138 ± 2 137 ± 2 0.31 K+ (mEq/L) 4.2 ± 0.3 4.3 ± 0.3 4.4 ± 0.3 0.22 Cl− (mEq/L) 105 ± 2 105 ± 3 104 ± 2 0.35 CO2 (mEq/L) 28 ± 2 29 ± 2 29 ± 2 0.11 Ca2+ (mg/dl) 9.3 ± 0.3 9.3 ± 0.3 9.3 ± 0.2 0.95 Pi (mg/dl) 3.4 ± 0.4 3.2 ± 0.6 3.4 ± 0.4 0.10 Mg2+ (mg/dl) 2.2 ± 0.2 2.2 ± 0.1 2.2 ± 0.1 0.19 UA (mg/dl) 6.6 ± 1.6 6.2 ± 1.6 5.6 ± 1.5b,c <0.0001 Parameter Control Lemonade Orange Juice ANOVA P Total volume (L/d) 2.55 ± 0.54 2.61 ± 0.31 2.51 ± 0.35 0.51 Ca2+ (mg/d) 159 ± 42 154 ± 58 146 ± 52 0.32 Mg2+ (mg/d) 83 ± 23 86 ± 21 108 ± 28b,c <0.0001 Cr (mg/d) 1589 ± 349 1565 ± 364 1585 ± 315 0.81 Na+ (mEq/d) 70 ± 37 58 ± 31 66 ± 48 0.28 K+ (mEq/d) 38 ± 11 39 ± 7 85 ± 21b,c <0.0001 Ammonium (mEq/d) 37 ± 10 36 ± 9 23 ± 8b,c <0.0001 Oxalate (mg/d) 31 ± 10 30 ± 7 35 ± 6b,c <0.005 UA (mg/d) 527 ± 123 491 ± 81 533 ± 116 0.22 Calculated RSR CaOx 4.50 ± 1.51 4.26 ± 1.84 3.71 ± 1.58b 0.06 Calculated RSR Br 0.42 ± 0.27 0.32 ± 0.21 0.82 ± 0.56b,c <0.0001 Calculated undissociated UA (mg/d) 184 ± 97 181 ± 88 77 ± 67b,c <0.0001 NAE (mEq/d) 55.5 ± 16.3 48.9 ± 15.7 17.3 ± 20.8b,c <0.0001
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