Table 1.

Comparative Diagnostic Data on Present Kindred With FP and Previously Mapped DHS Family

ConditionHematology Intracellular Electrolytes Tracer Flux Rates
Hb Retic[Na]i[K]iPump CotranspLeak
(g/dL) (%) (mmol/L cells−1)(mmol/L cells−1 h−1)
FP (Edinburgh)  14 to 18  2 to 4   12  85  2.6  1.2 0.12  
DHS (Irish family)  11 to 12  6 to 12  12 to 14 75 to 86   4.6 to 5.9  0.9 to 1.2  0.2   
Normal 14 to 18  <2   5 to 11  88 to 105  0.8 to 2.0   0 to 1.2  0.075 to 0.090 
ConditionHematology Intracellular Electrolytes Tracer Flux Rates
Hb Retic[Na]i[K]iPump CotranspLeak
(g/dL) (%) (mmol/L cells−1)(mmol/L cells−1 h−1)
FP (Edinburgh)  14 to 18  2 to 4   12  85  2.6  1.2 0.12  
DHS (Irish family)  11 to 12  6 to 12  12 to 14 75 to 86   4.6 to 5.9  0.9 to 1.2  0.2   
Normal 14 to 18  <2   5 to 11  88 to 105  0.8 to 2.0   0 to 1.2  0.075 to 0.090 

Intracellular Na and K were measured by flame photometry on fresh, washed RBCs. K influx was measured at 37°C using 86Rb as a tracer in MOPS with inhibitors at 0.1 mmol/L if required (see text). “Pump” denotes the ouabain-sensitive NaK pump fraction: “Cotransp,” the bumetanide-sensitive NaK2Cl cotransport; and “Leak,” the ouabain + bumetanide-resistant, residual passive leak fraction. Hematological values denote typical range on all 11 affected family members; isotopic flux results denote typical value on proposita.15 

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