2023
Effect of Burosumab on Muscle Function and Strength, and Rates of ATP Synthesis in Skeletal Muscle in Adults With XLH
Insogna K, Sullivan R, Parziale S, Deng Y, Carrano D, Simpson C, Dufour S, Carpenter T, Petersen K. Effect of Burosumab on Muscle Function and Strength, and Rates of ATP Synthesis in Skeletal Muscle in Adults With XLH. The Journal Of Clinical Endocrinology & Metabolism 2023, 109: e1061-e1071. PMID: 37930769, DOI: 10.1210/clinem/dgad642.Peer-Reviewed Original ResearchSymptoms of painMuscle function testsFunction testsMuscle strengthMuscle functionSkeletal muscleLower extremity joint painSTS testMuscle function studiesImproved muscle functionTreatment-naïve adultsSynthesis rateMonths of studyJoint painThird doseSymptomatic adultsClinical trialsRight calfATP synthesis rateBurosumabPainMuscle concentrationsXLHSymptomsMuscleCirculating Levels of Leptin and Lipocalin-2 in Patients With X-Linked Hypophosphatemia
Simpson C, Santoro A, Carpenter T, Deng Y, Parziale S, Insogna K. Circulating Levels of Leptin and Lipocalin-2 in Patients With X-Linked Hypophosphatemia. Journal Of The Endocrine Society 2023, 7: bvad116. PMID: 37860221, PMCID: PMC10583534, DOI: 10.1210/jendso/bvad116.Peer-Reviewed Original ResearchLipocalin-2Control subjectsGreater riskLevels of LCN2Excessive weight gainLevels of leptinSerum leptin levelsCirculating LevelsLCN2 levelsSerum levelsYear age cohortLeptin levelsMetabolic abnormalitiesRetrospective studyAge cohortsInsulin sensitivityHigh prevalencePatientsWeight gainXLHLeptinAge 2HypophosphatemiaObesityChildrenA De Novo Deleterious PHEX Variant Without Clinical Features of X-Linked Hypophosphatemia
Kayser M, Jain P, Bale A, Carpenter T. A De Novo Deleterious PHEX Variant Without Clinical Features of X-Linked Hypophosphatemia. JCEM Case Reports 2023, 1: luad082. PMID: 37908207, PMCID: PMC10586592, DOI: 10.1210/jcemcr/luad082.Peer-Reviewed Original ResearchSkewed X-inactivationFibroblast growth factor 23Growth factor 23Intrauterine growth restrictionSingle nucleotide polymorphismsDiagnosis of XLHClinical featuresFactor 23Duodenal atresiaRadiographic featuresGrowth restrictionPostnatal genetic testingAndrogen receptor locusPotential treatmentGenetic testingHypophosphatemiaXLHHereditary ricketsDominant disorderPrenatal identificationCommon formHemizygous malesHeterozygous disruptionRicketsHeterozygous females
2016
An Unusual Case of Rickets and How Whole Exome Sequencing Helped to Correct a Diagnosis
Peter P, Brownstein C, Yao G, Olear E, Simpson C, Agrawal P, Carpenter T, Insogna K. An Unusual Case of Rickets and How Whole Exome Sequencing Helped to Correct a Diagnosis. AACE Clinical Case Reports 2016, 2: ee278-ee283. DOI: 10.4158/ep15944.cr.Peer-Reviewed Original ResearchWhole-exome sequencingForms of ricketsExome sequencingGrowth factor 23Classic clinical featuresClinical suspicionClinical featuresClinical presentationFactor 23Parathyroid hormoneDihydroxyvitamin D3Correct diagnosisMistaken diagnosisUnusual caseNutritional deficienciesRicketsPatientsDiagnosisDiseaseHypophosphatemiaGenetic defectsCompound heterozygotesCYP27B1Gene sequencing technologyXLH
2010
Circulating Levels of Soluble Klotho and FGF23 in X-Linked Hypophosphatemia: Circadian Variance, Effects of Treatment, and Relationship to Parathyroid Status
Carpenter TO, Insogna KL, Zhang JH, Ellis B, Nieman S, Simpson C, Olear E, Gundberg CM. Circulating Levels of Soluble Klotho and FGF23 in X-Linked Hypophosphatemia: Circadian Variance, Effects of Treatment, and Relationship to Parathyroid Status. The Journal Of Clinical Endocrinology & Metabolism 2010, 95: e352-e357. PMID: 20685863, PMCID: PMC2968736, DOI: 10.1210/jc.2010-0589.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAge FactorsAgedBone Density Conservation AgentsCalcitriolChildCircadian RhythmEnzyme-Linked Immunosorbent AssayFamilial Hypophosphatemic RicketsFemaleFibroblast Growth Factor-23Fibroblast Growth FactorsGenetic Diseases, X-LinkedGlucuronidaseHumansKlotho ProteinsMaleMiddle AgedParathyroid HormonePhosphatesVitamin DConceptsSerum KlothoSerum FGF23Higher klotho levelsHospital research unitRenal phosphate handlingAcademic medical centerEffect of treatmentFibroblast growth factorKlotho levelsPTH secretionMedical therapySoluble KlothoDihydroxyvitamin DFGF23 regulationPhosphate handlingMedical CenterFGF23KlothoXLHCircadian variationGrowth factorPTHAdultsHypophosphatemiaTherapy
2003
Chapter 25 Familial Hypophosphatemia and Related Disorders
Holm I, Econs M, Carpenter T. Chapter 25 Familial Hypophosphatemia and Related Disorders. 2003, 603-xvi. DOI: 10.1016/b978-012286551-0/50027-0.Peer-Reviewed Original ResearchAutosomal dominant hypophosphatemic ricketsTumor-induced osteomalaciaRelated disordersHypophosphatemic ricketsPathophysiology of XLHDevelopment of ricketsDegenerative joint diseaseHereditary hypophosphatemic ricketsCommon bone diseaseJoint painDental abscessClinical featuresDihydroxyvitamin DFamilial hypophosphatemiaHypophosphatemic diseasesDental diseaseJoint diseaseBone diseaseRenal phosphateEndopeptidase PHEXShort statureHypophosphatemiaXLHDiseaseRickets