2019
Cathepsin K-deficient osteocytes prevent lactation-induced bone loss and parathyroid hormone suppression
Lotinun S, Ishihara Y, Nagano K, Kiviranta R, Carpentier VT, Neff L, Parkman V, Ide N, Hu D, Dann P, Brooks D, Bouxsein ML, Wysolmerski J, Gori F, Baron R. Cathepsin K-deficient osteocytes prevent lactation-induced bone loss and parathyroid hormone suppression. Journal Of Clinical Investigation 2019, 129: 3058-3071. PMID: 31112135, PMCID: PMC6668688, DOI: 10.1172/jci122936.Peer-Reviewed Original ResearchConceptsLactation-induced bone lossParathyroid hormoneBone lossBone resorptionCathepsin KMilk calcium levelsParathyroid hormone suppressionSerum parathyroid hormoneRegulation of PTHOsteoclastic bone resorptionTrabecular bone volumeOsteocyte lacunar areaHormone suppressionHigh calcium demandOsteoclast numberCortical thicknessEffect of lactationCalcium levelsNormal rangeBone volumeCalcium demandExact mechanismLacunar areaResorptionSufficient calcium
2003
Low 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