2015
OPG Treatment Prevents Bone Loss During Lactation But Does Not Affect Milk Production or Maternal Calcium Metabolism
Ardeshirpour L, Dumitru C, Dann P, Sterpka J, VanHouten J, Kim W, Kostenuik P, Wysolmerski J. OPG Treatment Prevents Bone Loss During Lactation But Does Not Affect Milk Production or Maternal Calcium Metabolism. Endocrinology 2015, 156: 2762-2773. PMID: 25961842, PMCID: PMC4511126, DOI: 10.1210/en.2015-1232.Peer-Reviewed Original ResearchConceptsBone lossOPG treatmentOsteoblast numberActivated B cells ligandLactational bone lossMaternal calcium homeostasisMaternal calcium metabolismMilk calcium levelsRapid bone lossDietary calcium intakeMaternal bone lossBone resorption rateMaternal hypocalcemiaRecombinant OPGCalcium intakeMaternal deathsOsteoprotegerin levelsMaternal skeletonBone turnoverDietary calciumCalcium metabolismOsteoclast numberBone massOsteoclast activityAnabolic response
2011
Site‐specific changes in bone microarchitecture, mineralization, and stiffness during lactation and after weaning in mice
Liu XS, Ardeshirpour L, VanHouten JN, Shane E, Wysolmerski JJ. Site‐specific changes in bone microarchitecture, mineralization, and stiffness during lactation and after weaning in mice. Journal Of Bone And Mineral Research 2011, 27: 865-875. PMID: 22189918, DOI: 10.1002/jbmr.1503.Peer-Reviewed Original ResearchConceptsWhole bone stiffnessNulliparous miceBone microarchitectureTissue mineralizationBone mineral density BMDIndividual trabecula segmentationDramatic bone lossBone mineral densityBone stiffnessRecovered miceBone lossMineral densityPup weaningEffect of lactationMouse modelSkeletal sitesBone quantityClinical observationsMicro-finite element analysisBone qualitySite-specific changesSkeletal changesDigital topological analysisMiceCortical structures
2010
Increased PTHrP and Decreased Estrogens Alter Bone Turnover but Do Not Reproduce the Full Effects of Lactation on the Skeleton
Ardeshirpour L, Brian S, Dann P, VanHouten J, Wysolmerski J. Increased PTHrP and Decreased Estrogens Alter Bone Turnover but Do Not Reproduce the Full Effects of Lactation on the Skeleton. Endocrinology 2010, 151: 5591-5601. PMID: 21047946, PMCID: PMC2999486, DOI: 10.1210/en.2010-0566.Peer-Reviewed Original ResearchConceptsBone mineral densityBone lossEstrogen deficiencyMineral densityInfusion of PTHrPReversible bone lossLevels of estrogenCombination of OVXLeuprolide treatmentCentral hypogonadismGnRH agonistMaternal skeletonBone turnoverOsmotic minipumpsOsteoclast numberBone metabolismBone resorptionSurgical ovariectomyNulliparous micePTHrPOVXInfusionEstrogenLeuprolideModest declineIncreased PTHrP and Decreased Estrogens Alter Bone Turnover but Do Not Reproduce the Full Effects of Lactation on the Skeleton
Ardeshirpour L, Brian S, Dann P, VanHouten J, Wysolmerski J. Increased PTHrP and Decreased Estrogens Alter Bone Turnover but Do Not Reproduce the Full Effects of Lactation on the Skeleton. Endocrine Reviews 2010, 31: 940-940. DOI: 10.1210/edrv.31.6.9976.Peer-Reviewed Original ResearchBone mineral densityBone lossEstrogen deficiencyMineral densityInfusion of PTHrPReversible bone lossLevels of estrogenCombination of OVXLeuprolide treatmentCentral hypogonadismGnRH agonistMaternal skeletonBone turnoverOsmotic minipumpsOsteoclast numberBone metabolismBone resorptionSurgical ovariectomyNulliparous micePTHrPOVXInfusionEstrogenLeuprolideModest decline
2007
Weaning Triggers a Decrease in Receptor Activator of Nuclear Factor-κB Ligand Expression, Widespread Osteoclast Apoptosis, and Rapid Recovery of Bone Mass after Lactation in Mice
Ardeshirpour L, Dann P, Adams DJ, Nelson T, VanHouten J, Horowitz MC, Wysolmerski JJ. Weaning Triggers a Decrease in Receptor Activator of Nuclear Factor-κB Ligand Expression, Widespread Osteoclast Apoptosis, and Rapid Recovery of Bone Mass after Lactation in Mice. Endocrinology 2007, 148: 3875-3886. PMID: 17495007, DOI: 10.1210/en.2006-1467.Peer-Reviewed Original ResearchConceptsBone lossBone massBone turnoverReceptor activatorOsteoclast apoptosisRapid bone lossC-telopeptide levelsNumber of osteoclastsBone formation rateNuclear factor-kappaB ligand (RANKL) mRNANuclear factor-kappaB ligand (RANKL) expressionRapid recoveryLevels of osteocalcinCessation of lactationSkeletal anabolismPTH levelsCalcium metabolismBone resorptionBone histomorphometryBone microarchitectureCalcium levelsOsteoblast numberLigand expressionReciprocal decreaseBone recovery
2005
Maternal calcium and bone metabolism during lactation
VanHouten J. Maternal calcium and bone metabolism during lactation. Current Opinion In Endocrinology Diabetes And Obesity 2005, 12: 477-482. DOI: 10.1097/01.med.0000185780.49783.84.Peer-Reviewed Original ResearchParathyroid hormone-related proteinHormone-related proteinMaternal bone mineral densityBone mineral densityCalcium-sensing receptorBone metabolismMammary glandMineral densityParathyroid hormone-related protein levelsMaternal bone metabolismMaternal calcium homeostasisLow estrogen levelsPurpose of reviewParathyroid hormone-related protein geneMaternal calciumEstrogen deficiencyBone lossEstrogen levelsEstrogen treatmentParathyroid glandsMammary epithelial cellsCalcium homeostasisSkeletal calciumSelective deletionTransient loss
2003
Mammary-specific deletion of parathyroid hormone–related protein preserves bone mass during lactation
VanHouten JN, Dann P, Stewart AF, Watson CJ, Pollak M, Karaplis AC, Wysolmerski JJ. Mammary-specific deletion of parathyroid hormone–related protein preserves bone mass during lactation. Journal Of Clinical Investigation 2003, 112: 1429-1436. PMID: 14597768, PMCID: PMC228471, DOI: 10.1172/jci19504.Peer-Reviewed Original ResearchConceptsBone lossBone turnoverMammary epithelial cellsParathyroid hormone-related proteinMammary glandMammary-specific deletionPTHrP-knockout miceRapid bone lossEpithelial cellsDihydroxy vitamin DNegative calcium balanceHormone-related proteinPreserves bone massAbsence of PTHrPExpression of CreUrinary cAMPVitamin DBone resorptionLate pregnancyBone massPTHrP mRNACalcium balanceKnockout micePTHrP proteinMammary developmentLow Estrogen and High Parathyroid Hormone-Related Peptide Levels Contribute to Accelerated Bone Resorption and Bone Loss in Lactating Mice
VanHouten JN, Wysolmerski JJ. Low Estrogen and High Parathyroid Hormone-Related Peptide Levels Contribute to Accelerated Bone Resorption and Bone Loss in Lactating Mice. Endocrinology 2003, 144: 5521-5529. PMID: 14500568, DOI: 10.1210/en.2003-0892.Peer-Reviewed Original ResearchConceptsBone lossBone mineral densityBone resorptionMineral densityDual-energy X-ray absorptiometryBone resorption markersX-ray absorptiometryRegulation of calciumAge-matched virginsPamidronate treatmentPTHrP levelsResorption markersLow estrogenEstrogen deficiencyBone turnoverEstrogen levelsPregnant miceBone metabolismBone massPeptide levelsSkeletal metabolismTotal bodyBone volumeCalcium homeostasisBiochemical markers