2014
Randomized trial of the anti-FGF23 antibody KRN23 in X-linked hypophosphatemia
Carpenter TO, Imel EA, Ruppe MD, Weber TJ, Klausner MA, Wooddell MM, Kawakami T, Ito T, Zhang X, Humphrey J, Insogna KL, Peacock M. Randomized trial of the anti-FGF23 antibody KRN23 in X-linked hypophosphatemia. Journal Of Clinical Investigation 2014, 124: 1587-1597. PMID: 24569459, PMCID: PMC3973088, DOI: 10.1172/jci72829.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedCalciumFamilial Hypophosphatemic RicketsFemaleFibroblast Growth Factor-23Fibroblast Growth FactorsGlomerular Filtration RateHalf-LifeHumansInjections, IntravenousInjections, SubcutaneousKidney TubulesMaleMiddle AgedPhosphatesVitamin DYoung AdultConceptsTmP/GFRSerum PiParathyroid hormonePhosphate reabsorptionXLH patientsRenal tubular thresholdSerum parathyroid hormoneFavorable safety profileElevated serum FGF23Renal phosphate reabsorptionLow serum concentrationsPhosphate-regulating endopeptidaseSerum Pi concentrationFGF23 antibodySerum FGF23Dihydroxyvitamin DSafety profileTubular thresholdSingle doseSerum concentrationsKRN23Mean t1/2Potential treatmentPatientsEffect duration
1984
Evidence for Disordered Control of 1,25-Dihydroxyvitamin D Production in Absorptive Hypercalciuria
Broadus A, Insogna K, Lang R, Ellison A, Dreyer B. Evidence for Disordered Control of 1,25-Dihydroxyvitamin D Production in Absorptive Hypercalciuria. New England Journal Of Medicine 1984, 311: 73-80. PMID: 6330548, DOI: 10.1056/nejm198407123110201.Peer-Reviewed Original ResearchConceptsAbsorptive hypercalciuriaCalcium intakeDietary calcium intakeDihydroxyvitamin D productionRenal phosphate handlingDihydroxyvitamin DPhosphate handlingSuppression testHypercalciuriaPatientsD productionShort-term increaseSyndromeIntakePresent studyInitial levelLarge majorityPrevious studiesEvidenceAbnormalitiesWeeks
1983
Impaired phosphorus conservation and 1,25 dihydroxyvitamin D generation during phosphorus deprivation in familial hypophosphatemic rickets.
Insogna KL, Broadus AE, Gertner JM. Impaired phosphorus conservation and 1,25 dihydroxyvitamin D generation during phosphorus deprivation in familial hypophosphatemic rickets. Journal Of Clinical Investigation 1983, 71: 1562-1569. PMID: 6306051, PMCID: PMC370362, DOI: 10.1172/jci110912.Peer-Reviewed Original ResearchConceptsFamilial hypophosphatemic ricketsNormal subjectsHypophosphatemic ricketsImmunoreactive parathyroid hormone levelsD plasma levelsNephrogenous cyclic AMPParathyroid hormone levelsGlomerular filtration rateDietary phosphorus deprivationHealthy male volunteersTubular reabsorptive capacityLow phosphorus dietCyclic AMP measurementsMale patientsRenal responseFiltration ratePlasma levelsHormone levelsAbnormal responseMale volunteersReabsorptive capacityPatientsPhosphorus intakePhosphorus dietPhosphate conservation
1981
Effect of Age on Serum Immunoreactive Parathyroid Hormone and Its Biological Effects*
INSOGNA K, LEWIS A, LIPINSKI B, BRYANT C, BARAN D. Effect of Age on Serum Immunoreactive Parathyroid Hormone and Its Biological Effects*. The Journal Of Clinical Endocrinology & Metabolism 1981, 53: 1072-1075. PMID: 6270181, DOI: 10.1210/jcem-53-5-1072.Peer-Reviewed Original ResearchConceptsIPTH levelsElderly subjectsTubular maximum phosphate reabsorptionImmunoreactive parathyroid hormone levelsSerum immunoreactive parathyroid hormoneImmunoreactive parathyroid hormoneParathyroid hormone levelsBiological effectsCreatinine clearanceEffect of ageNephrogenous cAMPUrinary calciumCreatinine ratioSerum phosphateParathyroid hormoneBone lossCalcium ingestionBone resorptionPhosphate reabsorptionHormone levelsHealthy volunteersSignificant negative correlationSignificant positive correlationIPTHOlder volunteers