2002
Evidence that the IL-6/IL-6 Soluble Receptor Cytokine System Plays a Role in the Increased Skeletal Sensitivity to PTH in Estrogen-Deficient Women
Masiukiewicz US, Mitnick M, Gulanski BI, Insogna KL. Evidence that the IL-6/IL-6 Soluble Receptor Cytokine System Plays a Role in the Increased Skeletal Sensitivity to PTH in Estrogen-Deficient Women. The Journal Of Clinical Endocrinology & Metabolism 2002, 87: 2892-2898. PMID: 12050269, DOI: 10.1210/jcem.87.6.8577.Peer-Reviewed Original ResearchConceptsEstrogen-deficient womenIL-6/ILSkeletal sensitivityIL-6IL-6sREstrogen deficiencyCytokine systemIL-6 soluble receptorUrine N-telopeptideAction of PTHPrevious animal studiesNTx excretionPTH infusionPostmenopausal womenSerum calciumN-telopeptideCytokine productionTNF-alphaExaggerated increaseIL-1betaHormonal statusBaseline valuesSoluble receptorAnimal studiesColony-stimulating factor-1
2001
IL-6 Negatively Regulates IL-11 Production in Vitro and in Vivo
Nakchbandi I, Mitnick M, Masiukiewicz U, Sun B, Insogna K. IL-6 Negatively Regulates IL-11 Production in Vitro and in Vivo. Endocrinology 2001, 142: 3850-3856. DOI: 10.1210/en.142.9.3850.Peer-Reviewed Original ResearchCirculating levels of IL-6Levels of IL-6IL-11IL-6Circulating levelsBone resorptionSteady state mRNA levelsOsteoclast formationFive-day infusionHuman PTH-(1-84Pretreatment of cellsIL-11 levelsResponse to PTHIL-11 productionIncreased osteoclast formationIL-6 levelsPTH-(1-84Saos-2 cellsParathyroid adenomectomyDown-regulationProduction in vitroPrimary hyperparathyroidismPTH excessProduction in vivoSerum levels
2000
Estrogen Modulates Parathyroid Hormone-Induced Interleukin-6 Production in Vivo and in Vitro*
Masiukiewicz U, Mitnick M, Grey A, Insogna K. Estrogen Modulates Parathyroid Hormone-Induced Interleukin-6 Production in Vivo and in Vitro*. Endocrinology 2000, 141: 2526-2531. DOI: 10.1210/en.141.7.2526.Peer-Reviewed Original ResearchCirculating levels of IL-6Levels of IL-6PTH-induced bone resorptionEstrogen-deficient stateIL-6Circulating levelsIL-6 productionPTH infusionEstrogen withdrawalBone resorptionResponse to PTH infusionChronic PTH excessEstrogen-replete conditionsTreated with PTHBone turnover markersInfusion of PTHBone resorption markersResponse to PTHEffect of PTHAbsence of estrogenRelease of IL-6Short-term infusionEstrogen-treated animalsInterleukin (IL)-6Collagen cross-linking