2004
Brittle IV Mouse Model for Osteogenesis Imperfecta IV Demonstrates Postpubertal Adaptations to Improve Whole Bone Strength*
Kozloff KM, Carden A, Bergwitz C, Forlino A, Uveges TE, Morris MD, Marini JC, Goldstein SA. Brittle IV Mouse Model for Osteogenesis Imperfecta IV Demonstrates Postpubertal Adaptations to Improve Whole Bone Strength*. Journal Of Bone And Mineral Research 2004, 19: 614-622. PMID: 15005849, DOI: 10.1359/jbmr.040111.Peer-Reviewed Original ResearchMeSH KeywordsAdaptation, PhysiologicalAgingAmino Acid SubstitutionAnatomy, Cross-SectionalAnimalsBone DensityBone DevelopmentBone MatrixCollagen Type IDisease Models, AnimalFemurMaleMiceMice, TransgenicMineralsOsteogenesis ImperfectaRadiographySpectrum Analysis, RamanStress, MechanicalTensile StrengthConceptsMatrix material propertiesWhole bone geometryMaterial propertiesWhole bone strengthOsteogenesis imperfectaMouse modelBone geometryBone strengthMatrix compositesMechanical testsStiffness increaseType IV osteogenesis imperfectaMicroCT dataInvestigate therapeutic interventionsGeometric parametersMechanism independent of changesMouse model of OIRaman spectroscopic resultsMonths of ageMechanically tested to failureKnock-in modelOI patientsRaman spectroscopyGeometric resistanceIndependent of changes
1998
Identification, functional characterization, and developmental expression of two nonallelic parathyroid hormone (PTH)/PTH-related peptide receptor isoforms in Xenopus laevis (Daudin).
Bergwitz C, Klein P, Kohno H, Forman SA, Lee K, Rubin D, Jüppner H. Identification, functional characterization, and developmental expression of two nonallelic parathyroid hormone (PTH)/PTH-related peptide receptor isoforms in Xenopus laevis (Daudin). Endocrinology 1998, 139: 723-32. PMID: 9449646, DOI: 10.1210/endo.139.2.5733.Peer-Reviewed Original ResearchConceptsReceptor isoformsMammalian COS-7 cellsAfrican clawed frog Xenopus laevisIsoform BXenopus laevisParathyroid hormoneClawed frog Xenopus laevisComplementary DNA librarySubpopulations of mononuclear cellsPTH/PTH-related peptideFrog Xenopus laevisCOS-7 cellsPTH-(1-34Accumulation of cAMPVoltage clamp experimentsNeurula stage embryosMessenger RNA expressionInositol phosphate turnoverRibonuclease protection analysisPTHrP-(1-36DNA libraryTadpole developmentIn situ hybridizationCoding regionIncreased approximately 30-fold
1997
Cloning and characterization of the vitamin D receptor from Xenopus laevis.
Li Y, Bergwitz C, Jüppner H, Demay M. Cloning and characterization of the vitamin D receptor from Xenopus laevis. Endocrinology 1997, 138: 2347-53. PMID: 9165021, DOI: 10.1210/endo.138.6.5210.Peer-Reviewed Original ResearchMeSH KeywordsAgingAmino Acid SequenceAnimalsBase SequenceBone and BonesChickensCloning, MolecularDimerizationEmbryo, NonmammalianFemaleGene Expression Regulation, DevelopmentalHumansIntestine, SmallKidneyMiceMolecular Sequence DataOrgan SpecificityPolymerase Chain ReactionRatsReceptors, CalcitriolReceptors, Retinoic AcidRecombinant ProteinsRetinoic Acid Receptor alphaSequence Homology, Amino AcidSkinSpecies SpecificityXenopus laevisConceptsVitamin D response elementRat osteocalcin vitamin D response elementVitamin D receptorOsteocalcin vitamin D response elementLower vertebrate speciesMessenger RNA speciesHuman vitamin D receptorMouse retinoid X receptor alphaAmino acid residuesRetinoid X receptor alphaRat osteocalcin vitamin D responsive elementAmino acid levelsX receptor alphaVertebrate speciesRNA speciesMammalian cellsTransfected mammalian cellsXenopus developmentDependent transactivationD response elementNuclear receptor superfamilyXenopus tissuesDNA bindingIon homeostasisNorthern analysis