2024
An infant developing hypercalcemia and hypophosphatemia due to the use of exclusively almond milk
Salama M, Tebben P, Al Nofal A. An infant developing hypercalcemia and hypophosphatemia due to the use of exclusively almond milk. Journal Of Pediatric Endocrinology And Metabolism 2024, 37: 375-379. PMID: 38414167, DOI: 10.1515/jpem-2023-0494.Peer-Reviewed Case Reports and Technical NotesConceptsParathyroid hormoneCreatinine ratioUrine calcium-to-creatinine ratioHistory of biliary atresiaCalcium to creatinine ratioMonths prior to presentationAlmond milkCow's milk allergyMilk consumptionMonths of ageSevere hypercalcemiaBiliary atresiaAlternative to cow milkCow's milkD levelsLiver transplantationPlant-based milk alternativesCase reportInitial managementIntravenous fluidsMilk allergyHypercalcemiaMineral contentCalcium concentrationHypophosphatemia
2023
THU461 Severe Hypercalcemia Associated With Perinatal Hypophosphatasia While Receiving Enzyme Replacement Therapy
Salama M, Tebben P. THU461 Severe Hypercalcemia Associated With Perinatal Hypophosphatasia While Receiving Enzyme Replacement Therapy. Journal Of The Endocrine Society 2023, 7: bvad114.422. PMCID: PMC10555444, DOI: 10.1210/jendso/bvad114.422.Peer-Reviewed Original ResearchDietary calcium intakeCalcium intakeAsfotase alfaPerinatal hypophosphatasiaMonths of ageTissue non-specific alkaline phosphataseSevere hypercalcemiaAA doseIncreased to 3 mg/kgLow calcium intakeDefective bone mineralizationLong-term therapyEnzyme replacement therapyTreated with AAPrenatal ultrasoundCalcitonin therapyPersistent hypercalcemiaInitial presentationAA therapyHydroxyvitamin DNon-specific alkaline phosphataseCalcium supplementationParathyroid hormoneReplacement therapyInitial management
2022
Hypophosphatemia: A Practical Guide to Evaluation and Management
Tebben P. Hypophosphatemia: A Practical Guide to Evaluation and Management. Endocrine Practice 2022, 28: 1091-1099. PMID: 35940468, DOI: 10.1016/j.eprac.2022.07.005.Peer-Reviewed Original ResearchConceptsClinical manifestationsNormal phosphate homeostasisParathyroid hormoneFibroblast growth factorFunction of phosphateRange of symptomsCell membrane integrityEnzyme functionGrowth factorPhosphate balanceSkeletal mineralizationMembrane integrityChronic causesGastrointestinal tractPhosphate homeostasisDiverse rolesEnergy homeostasisHypophosphatemia
2021
Progression of PTH Resistance in Autosomal Dominant Pseudohypoparathyroidism Type Ib Due to Maternal STX16 Deletions
Kiuchi Z, Reyes M, Hanna P, Sharma A, DeClue T, Olney R, Tebben P, Jüppner H. Progression of PTH Resistance in Autosomal Dominant Pseudohypoparathyroidism Type Ib Due to Maternal STX16 Deletions. The Journal Of Clinical Endocrinology & Metabolism 2021, 107: e681-e687. PMID: 34477200, PMCID: PMC8899049, DOI: 10.1210/clinem/dgab660.Peer-Reviewed Original ResearchConceptsAutosomal dominant pseudohypoparathyroidism type IbSTX16 deletionPseudohypoparathyroidism type IbParathyroid hormoneYears of ageAD-PHP1BDisease-causing variantsFemale carriersMeasurement of parathyroid hormoneGNAS exon A/BPretreatment laboratory resultsElevated PTH levelsParathyroid hormone resistanceParathyroid hormone levelsSerum calcium levelsThyrotropin (TSHType IbExon A/BOvert hypocalcemiaPTH resistancePTH levelsTSH levelsCalcium abnormalitiesPrompt treatmentLoss of methylationBasal Ganglia Calcification Is Associated With Local and Systemic Metabolic Mechanisms in Adult Hypoparathyroidism
Zavatta G, Tebben P, McCollough C, Yu L, Vrieze T, Clarke B. Basal Ganglia Calcification Is Associated With Local and Systemic Metabolic Mechanisms in Adult Hypoparathyroidism. The Journal Of Clinical Endocrinology & Metabolism 2021, 106: 1900-1917. PMID: 33788935, DOI: 10.1210/clinem/dgab162.Peer-Reviewed Original ResearchConceptsLow serum calciumBasal ganglia calcificationSerum calciumChronic hypoparathyroidismNonsurgical patientsSerum phosphorusAssociated with lower serum calciumComputed tomographyDecreased serum parathyroid hormoneRetrospective review of medical recordsReview of medical recordsSerum parathyroid hormoneAssociated with soft tissue calcificationSex-matched controlsAssociated with greater volumeDuration of treatmentCase-control studyDistribution of calcificationSoft tissue calcificationIncreased serum phosphorusCalcium/phosphate ratioCT headRetrospective reviewParathyroid hormoneImaging findingsChapter 10 Phosphatonins
Tebben P, Kumar R. Chapter 10 Phosphatonins. 2021, 215-233. DOI: 10.1016/b978-0-12-813073-5.00010-1.ChaptersSecreted frizzled-related protein 4X-linked hypophosphatemic ricketsPhosphorus balanceCell membrane integrityTumor-induced osteomalaciaFrizzled-related protein 4Fibroblast growth factor 23Matrix extracellular phosphoglycoproteinPhosphate homeostasisRenal phosphate reabsorptionPhosphate absorptionAbnormal phosphate homeostasisIntestinal phosphate absorptionMembrane integrityPhosphorusFibroblast growth factor 7Parathyroid hormonePhosphaturic peptidesHypophosphatemic ricketsPhosphate reabsorptionVitamin DRenal reabsorptionHypophosphatemic disordersNovel treatmentTumoral calcinosis
2020
Hypercalcemia in Children Using the Ketogenic Diet: A Multicenter Study
Hawkes C, Roy S, Dekelbab B, Frazier B, Grover M, Haidet J, Listman J, Madsen S, Roan M, Rodd C, Sopher A, Tebben P, Levine M. Hypercalcemia in Children Using the Ketogenic Diet: A Multicenter Study. The Journal Of Clinical Endocrinology & Metabolism 2020, 106: e485-e495. PMID: 33124662, PMCID: PMC7823241, DOI: 10.1210/clinem/dgaa759.Peer-Reviewed Original ResearchConceptsAcute hypercalcemiaKetogenic dietLevels of 1,25-dihydroxyvitamin DLow levels of parathyroid hormoneLevels of parathyroid hormoneLow alkaline phosphatase levelMulticenter case seriesImpaired renal functionCohort of patientsResolution of hypercalcemiaReduced osteoblast activityResponse to treatmentAlkaline phosphatase levelsImpaired bone formationRenal impairmentClinical presentationRenal functionParathyroid hormoneCase seriesMulticenter studyClinical characteristicsBone healthHypercalcemiaSkeletal demineralizationFollow-up
2018
Blau Syndrome: An Unusual Cause of Hypercalcemia in a Child
Lo H, Muskardin T, Tebben P. Blau Syndrome: An Unusual Cause of Hypercalcemia in a Child. AACE Clinical Case Reports 2018, 4: e278-e281. DOI: 10.4158/accr-2017-0041.Peer-Reviewed Case Reports and Technical NotesVitamin D-mediated hypercalcemiaBlau syndromeDiagnosis of Blau syndromeCause of hypercalcemiaResponse to therapyGranulomatous inflammatory diseaseSurgically treated Graves' diseaseAngiotensin-converting enzyme concentrationNegative fungalMethods ClinicalGranulomatous disorderGraves' diseaseSerum calciumParathyroid hormoneEye diseaseUnusual causeHypercalcemiaNOD2 geneGenetic testingInflammatory diseasesTuberculosis testingInflammatory jointsSyndromeGenetic findingsJoint effusion
2013
Chapter 16 Phosphatonins
Tebben P, Berndt T, Kumar R. Chapter 16 Phosphatonins. 2013, 373-390. DOI: 10.1016/b978-0-12-415853-5.00016-9.ChaptersMatrix extracellular phosphoglycoproteinSecreted frizzled-related protein 4Skeletal mineralizationAssociated with abnormal mineralizationActive vitamin D metaboliteFrizzled-related protein 4Fibroblast growth factor 23Vitamin D metabolitesRenal phosphate reabsorptionIntestinal phosphate absorptionPhosphaturic peptidesParathyroid hormoneD metabolitesChronic hypophosphatemiaPhosphate reabsorptionAbnormal mineralizationProtein 4Phosphorus homeostasisPhosphate homeostasisBone mineralizationEnergy homeostasisCell membrane integrityFGF23Phosphate absorptionChapter 65 The Hormonal Regulation of Calcium Metabolism
Tebben P, Kumar R. Chapter 65 The Hormonal Regulation of Calcium Metabolism. 2013, 2249-2272. DOI: 10.1016/b978-0-12-381462-3.00065-3.ChaptersRegulation of calcium metabolismParathyroid hormoneCalcium metabolismExtracellular fluid calcium concentrationCalcium homeostasisControl of calcium homeostasisHormonal regulation of calcium metabolismCellular signalingEnzyme functionBiological processesRenal tubular cellsPathophysiology of diseaseHormonal regulationSevere calcium deficiencyValvular calcificationMuscular contractilityNormal rangeMal seizuresTubular cellsCalcium concentrationNeuromuscular transmissionHormoneEctopic sitesBlood coagulationHomeostasis
2012
Vitamin D and the kidney
Kumar R, Tebben P, Thompson J. Vitamin D and the kidney. Archives Of Biochemistry And Biophysics 2012, 523: 77-86. PMID: 22426203, PMCID: PMC3361542, DOI: 10.1016/j.abb.2012.03.003.Peer-Reviewed Original Research
2011
Chapter 26 Vitamin D and the Kidney
Tebben P, Kumar R. Chapter 26 Vitamin D and the Kidney. 2011, 471-491. DOI: 10.1016/b978-0-12-381978-9.10026-5.ChaptersControl of plasma calciumControl of plasma phosphateConservation of calciumCytochrome P-450-containing enzymeParathyroid hormoneEpithelial calcium channelPlasma calciumPhosphorusLoad of sodiumReabsorption of calciumReabsorption of phosphatePlasma membrane calciumRenal proximal tubular cellsCalcium transport systemPlasma phosphateProximal tubular cellsHormonal form of vitamin D.Synthesis of 1,25(OH)2D3Calbindin-D28KEfficiency of calciumCalcium channelsPhosphorus reabsorptionCalbindin-D9KVitamin DVitamin D.
2004
Fibroblast Growth Factor 23, Parathyroid Hormone, and 1α,25-Dihydroxyvitamin D in Surgically Treated Primary Hyperparathyroidism
Tebben P, Singh R, Clarke B, Kumar R. Fibroblast Growth Factor 23, Parathyroid Hormone, and 1α,25-Dihydroxyvitamin D in Surgically Treated Primary Hyperparathyroidism. Mayo Clinic Proceedings 2004, 79: 1508-1513. PMID: 15595334, DOI: 10.4065/79.12.1508.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedBiomarkersDihydroxycholecalciferolsFemaleFibroblast Growth Factor-23Fibroblast Growth FactorsFollow-Up StudiesHumansHyperparathyroidismMaleMiddle AgedParathyroid GlandsParathyroid HormoneParathyroidectomyPostoperative CarePreoperative CareProbabilityProspective StudiesSampling StudiesSensitivity and SpecificitySeverity of Illness IndexStatistics, NonparametricTreatment OutcomeConceptsBone-specific alkaline phosphataseBone-specific alkaline phosphatase concentrationsFibroblast growth factor 23Primary hyperparathyroidismParathyroid hormoneSerum phosphorus concentrationFGF23 concentrationsSerum calciumSurgically treated primary hyperparathyroidismElevated serum calciumLow-normal rangeParathyroid hormone concentrationsAdult patientsPreoperative stateSerum phosphorusPostoperative stateHyperparathyroidismHealthy controlsFibroblast growth factorPatientsFGF23Growth factorSurgerySerumPhosphorus homeostasis