2024
Efficacy of Oral Cinacalcet in Non-PTH Nonmalignant Hypercalcemia from Excess 1,25-Dihydroxyvitamin D
Mohan S, Sheehan M, Tebben P, Wermers R. Efficacy of Oral Cinacalcet in Non-PTH Nonmalignant Hypercalcemia from Excess 1,25-Dihydroxyvitamin D. JCEM Case Reports 2024, 2: luae022. PMID: 38476635, PMCID: PMC10928506, DOI: 10.1210/jcemcr/luae022.Peer-Reviewed Original ResearchLow PTHTherapeutic optionsCalcium levelsNormalization of calcium levelsElevated serum calcium levelsSerum calcium levelsMechanism(s) of actionOral cinacalcetSymptomatic hypocalcemiaCinacalcet doseRecurrent nephrolithiasisUrine calciumRare causeGranulomatous diseaseCinacalcetHypercalcemiaFollow-upSymptomatic benefitGenetic testingBiallelic variantsGenetic mutationsMechanism(s)Mild decreasePTHMalignancy
2016
Vitamin D-Mediated Hypercalcemia: Mechanisms, Diagnosis, and Treatment
Tebben P, Singh R, Kumar R. Vitamin D-Mediated Hypercalcemia: Mechanisms, Diagnosis, and Treatment. Endocrine Reviews 2016, 37: 521-547. PMID: 27588937, PMCID: PMC5045493, DOI: 10.1210/er.2016-1070.Peer-Reviewed Original ResearchConceptsVitamin D receptorD receptorVitamin D-mediated hypercalcemiaElevated serum calcium concentrationsAssociated with elevated serumProduction of 1,25-dihydroxyvitamin DSuppressing PTH concentrationsAssociated with malignancyReduced bone densityRenal stone formersSerum calcium concentrationVitamin D metabolitesVitamin D<sub>3</sub>Primary hyperparathyroidismElevated serumPTH concentrationsMonoallelic mutationsClinical featuresCYP24A1 geneD metabolitesGranulomatous diseaseBiochemical diagnosisTumor cellsVitamin DHypercalcemia