2024
An update on clinical presentation and responses to therapy of patients with hereditary hypophosphatemic rickets with hypercalciuria (HHRH)
Zhu Z, Bo-Ran Ho B, Chen A, Amrhein J, Apetrei A, Carpenter T, Lazaretti-Castro M, Colazo J, McCrystal Dahir K, Geßner M, Gurevich E, Heier C, Simmons J, Hunley T, Hoppe B, Jacobsen C, Kouri A, Ma N, Majumdar S, Molin A, Nokoff N, Ott S, Peña H, Santos F, Tebben P, Topor L, Deng Y, Bergwitz C. An update on clinical presentation and responses to therapy of patients with hereditary hypophosphatemic rickets with hypercalciuria (HHRH). Kidney International 2024, 105: 1058-1076. PMID: 38364990, PMCID: PMC11106756, DOI: 10.1016/j.kint.2024.01.031.Peer-Reviewed Original ResearchResponse to therapyHereditary hypophosphatemic ricketsPathogenic variantsBone phenotypeSerum phosphateHypophosphatemic ricketsHeterozygous carriersPartial response to therapyPredicting response to therapyRare group of disordersIntact parathyroid hormoneUrine calcium excretionCorrection of hypophosphatemiaSolute carrier familyDecreased serum phosphateBaseline disease severityVariants in vitroOral phosphate supplementationNormalize serum phosphateStandard of careGroup of disordersMutant allelesCarrier familyBiochemical phenotypeKidney phenotype
2020
Description of a novel SLC34A3.c.671delT mutation causing hereditary hypophosphatemic rickets with hypercalciuria in two adolescent boys and response to recombinant human growth hormone
Dreimane D, Chen A, Bergwitz C. Description of a novel SLC34A3.c.671delT mutation causing hereditary hypophosphatemic rickets with hypercalciuria in two adolescent boys and response to recombinant human growth hormone. Therapeutic Advances In Musculoskeletal Disease 2020, 12: 1759720x20912862. PMID: 32963591, PMCID: PMC7488884, DOI: 10.1177/1759720x20912862.Peer-Reviewed Original ResearchRecombinant human growth hormoneHereditary hypophosphatemic ricketsOral phosphate supplementationAffected brothersHuman growth hormoneHypophosphatemic ricketsResponse to rhGHBorn to unrelated parentsSequence analysisParameters of mineral homeostasisPhosphate supplementationRenal phosphate leakWhole-exome sequencing analysisGrowth hormone therapyGrowth hormoneBiochemical parameters of mineral homeostasisAccelerated linear growthImprove linear growthUrine biochemical parametersAutosomal recessive disorderRenal phosphate reabsorptionAffected brotherExome sequencing analysisWhole-exome sequencingSanger sequencing analysis
2016
Impaired urinary osteopontin excretion in Npt2a−/− mice
Caballero D, Li Y, Ponsetto J, Zhu C, Bergwitz C. Impaired urinary osteopontin excretion in Npt2a−/− mice. American Journal Of Physiology. Renal Physiology 2016, 312: f77-f83. PMID: 27784695, PMCID: PMC5283892, DOI: 10.1152/ajprenal.00367.2016.Peer-Reviewed Original ResearchConceptsOPN gene expressionUrinary excretionRenal phosphate wasting disordersHigh-phosphate dietPhosphate wasting disordersOral phosphate supplementationRenal gene expressionRenal stone diseaseGene expressionAdditional risk factorsOPN levelsRole of OPNWasting disordersStone diseaseUrine excretionMouse modelNpt2aRisk factorsMouse mutationPhosphate supplementationRenal phosphateMiceRestored to wild-type levelsExcretionNephrocalcinosis