Glorieux F, Scriver C R
Science. 1972 Mar 3;175(4025):997-1000. doi: 10.1126/science.175.4025.997.
Mutant hemizygotes with X-linked hypophosphatemia lack a parathyroid hormone-sensitive component of inorganic phosphate transport in kidney; female heterozygotes retain a variable proportion of this type of transport. The residual mechanism for reabsorption in affected males allows inorganic phosphate efflux from the kidney to urine so that net "secretion" is sometimes observed; the latter is directly proportional to the serum concentration of inorganic phosphate. Calcium acts on the kidney tubule to enhance net reabsorption by this component of inorganic phosphate transport.
患有X连锁低磷血症的突变半合子缺乏肾脏中无机磷酸盐转运的甲状旁腺激素敏感成分;女性杂合子保留了这种转运类型的可变比例。受影响男性中残余的重吸收机制使无机磷酸盐从肾脏流向尿液,因此有时会观察到净“分泌”;后者与无机磷酸盐的血清浓度成正比。钙作用于肾小管,通过这种无机磷酸盐转运成分增强净重吸收。