2021
24-Hydroxylase Deficiency Due to CYP24A1 Sequence Variants: Comparison With Other Vitamin D−mediated Hypercalcemia Disorders
Azer S, Vaughan L, Tebben P, Sas D. 24-Hydroxylase Deficiency Due to CYP24A1 Sequence Variants: Comparison With Other Vitamin D−mediated Hypercalcemia Disorders. Journal Of The Endocrine Society 2021, 5: bvab119. PMID: 34337279, PMCID: PMC8317629, DOI: 10.1210/jendso/bvab119.Peer-Reviewed Original ResearchPositive family historyUrinary calcium:creatinine ratioFamily historyCalcium:creatinine ratioLumbar spine Z-scoreClinical characteristics of patientsRetrospectively reviewed laboratoryIdentified 9 patientsSpine Z-scoreVitamin D toxicityFisher's exact testCharacteristics of patientsLoss-of-function variantsWilcoxon rank sum testRank sum testSerum calciumClinical characteristicsLaboratory findingsCreatinine ratioInactive metabolitesExact testMayo ClinicSymptom onsetGene variantsPatientsBasal Ganglia Calcification in Hypoparathyroidism Is Associated With Low Serum Calcium/Phosphate Ratio
Zavatta G, Tebben P, Clarke B. Basal Ganglia Calcification in Hypoparathyroidism Is Associated With Low Serum Calcium/Phosphate Ratio. Journal Of The Endocrine Society 2021, 5: a255-a256. PMCID: PMC8091468, DOI: 10.1210/jendso/bvab048.519.Peer-Reviewed Original ResearchHead CT scanBasal ganglia calcificationNon-surgical hypoparathyroidismCT scanPrevalence of basal ganglia calcificationsHead CTSerum calciumAssociated with lower serum calciumCalcium x phosphate productRisk factorsAverage serum calciumComplications of hypoparathyroidismDuration of hypoparathyroidismHead CT-Scan imageLow serum calciumPost-surgical hypoparathyroidismCohort of patientsIncreased serum phosphateCardiovascular risk factorsDiagnosis of hypoparathyroidismMedical record reviewCalcium/phosphate ratioSerum phosphateCase seriesCase reportBasal 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 findings
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
2010
Severe Hypercalcemia due to Primary Hyperparathyroidism with MEN 2A
Thompson G, Dy B, Vazquez B, Tebben P, Kumar S. Severe Hypercalcemia due to Primary Hyperparathyroidism with MEN 2A. World Journal Of Endocrine Surgery 2010, 2: 131-133. DOI: 10.5005/jp-journals-10002-1037.Peer-Reviewed Original ResearchSevere hypercalcemia due to primary hyperparathyroidismHypercalcemia due to primary hyperparathyroidismPrimary hyperparathyroidismSevere hypercalcemiaParathyroid adenomaMEN 2ASurgical managementRare presentation of primary hyperparathyroidismCalcium levelsPresentation of primary hyperparathyroidismDecreased bone mineral densityElevation of serum calciumSingle parathyroid adenomaTreatment of hyperparathyroidismEarly surgical managementBone mineral densityTime of diagnosisParathyroid carcinomaRare presentationClinical presentationSerum calciumMineral densitySevere elevationClinical manifestationsDifferential diagnosis
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