The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
Chronic Elevation of Parathyroid Hormone in Mice Reduces Expression of Sclerostin by Osteocytes: A Novel Mechanism for Hormonal Control of Osteoblastogenesis
Open accessAbstract
Both chronic excess of PTH, as in hyperparathyroidism, and intermittent elevation of PTH (by daily injections) increase the number of osteoblasts; albeit, the former is associated with bone catabolism and the later with bone anabolism. Intermittent PTH increases osteoblast number by attenuating osteoblast apoptosis, an effect that requires the transcription factor Runx2. However, chronic elevation of PTH does not affect osteoblast apoptosis because it stimulates the proteasomal degradation of Runx2. Here, we studied the effects of PTH on Sost, a Runx2 target gene expressed in osteocytes (former osteoblasts embedded in the bone matrix), which antagonizes the pro-osteoblastogenic actions of bone morphogenetic proteins and Wnts. We report that continuous infusion of PTH to mice for 4 d decreased Sost mRNA expression in vertebral bone by 80–90%. This effect was accompanied by a comparable reduction of sclerostin, the product of Sost, in osteocytes, as determined by quantitative immunoblot analysis of bone extracts and by immunostaining. In contrast, a single injection of PTH caused a transient 50% reduction in Sost mRNA at 2 h, but four daily injections had no effect on Sost mRNA or sclerostin. PTH strongly decreased Sost expression in osteocytes formed in primary cultures of neonatal murine calvaria cells as well as in osteocytic MLO-A5 cells, demonstrating a direct effect of PTH on this cell type. These results, together with evidence that sclerostin antagonizes bone morphogenetic proteins and Wnts, strongly suggest that suppression of Sost by PTH represents a novel mechanism for hormonal control of osteoblastogenesis mediated by osteocytes.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Neer, R. M., Arnaud, C. D., Zanchetta, J. R., Prince, R., Gaich, G. A., Reginster, J.-Y., Hodsman, A. B., Eriksen, E. F., Ish-Shalom, S., Genant, H. K., et al. (2001) · New England Journal of Medicine · doi:10.1056/nejm200105103441904 · Cited by 4,602
Osf2/Cbfa1: A Transcriptional Activator of Osteoblast Differentiation
Ducy, P., Zhang, R., Geoffroy, V., Ridall, A. L., & Karsenty, G. (1997) · Cell · doi:10.1016/s0092-8674(00)80257-3 · Cited by 4,246
Manolagas, S. C. (2000) · Endocrine Reviews · doi:10.1210/edrv.21.2.0395 · Cited by 2,568
Self-citationSclerostin Binds to LRP5/6 and Antagonizes Canonical Wnt Signaling
Li, X., Zhang, Y., Kang, H., Liu, W., Liu, P., Zhang, J., Harris, S. E., & Wu, D. (2005) · Journal of Biological Chemistry · doi:10.1074/jbc.m413274200 · Cited by 1,366
Increased bone density in sclerosteosis is due to the deficiency of a novel secreted protein (SOST)
Balemans, W. (2001) · Human Molecular Genetics · doi:10.1093/hmg/10.5.537 · Cited by 1,147
Nongenotropic, Sex-Nonspecific Signaling through the Estrogen or Androgen Receptors
Kousteni, S., Bellido, T., Plotkin, L. I., O'Brien, C. A., Bodenner, D. L., Han, L., Han, K., DiGregorio, G. B., Katzenellenbogen, J. A., Katzenellenbogen, B. S., et al. (2001) · Cell · doi:10.1016/s0092-8674(01)00268-9 · Cited by 1,113
Self-citationOsteocyte control of bone formation via sclerostin, a novel BMP antagonist
Winkler, D. G. (2003) · The EMBO Journal · doi:10.1093/emboj/cdg599 · Cited by 1,112
Increased bone formation by prevention of osteoblast apoptosis with parathyroid hormone
Jilka, R. L., Weinstein, R. S., Bellido, T., Roberson, P., Parfitt, A. M., & Manolagas, S. C. (1999) · Journal of Clinical Investigation · doi:10.1172/jci6610 · Cited by 1,043
Self-citationBrunkow, M. E., Gardner, J. C., Van Ness, J., Paeper, B. W., Kovacevich, B. R., Proll, S., Skonier, J. E., Zhao, L., Sabo, P. J., Fu, Y.-H., et al. (2001) · The American Journal of Human Genetics · doi:10.1086/318811 · Cited by 1,011
van Bezooijen, R. L., Roelen, B. A. J., Visser, A., van der Wee-Pals, L., de Wilt, E., Karperien, M., Hamersma, H., Papapoulos, S. E., ten Dijke, P., & Löwik, C. W. G. M. (2004) · The Journal of Experimental Medicine · doi:10.1084/jem.20031454 · Cited by 892
Cited by
Bonewald, L. F. (2011) · Journal of Bone and Mineral Research · doi:10.1002/jbmr.320 · Cited by 2,287
WNT signaling in bone homeostasis and disease: From human mutations to treatments
Baron, R., & Kneissel, M. (2013) · Nature Medicine · doi:10.1038/nm.3074 · Cited by 2,093
Mechanical Stimulation of Bone in Vivo Reduces Osteocyte Expression of Sost/Sclerostin
Robling, A. G., Niziolek, P. J., Baldridge, L. A., Condon, K. W., Allen, M. R., Alam, I., Mantila, S. M., Gluhak-Heinrich, J., Bellido, T. M., Harris, S. E., et al. (2008) · Journal of Biological Chemistry · doi:10.1074/jbc.m705092200 · Cited by 1,350
Self-citationThe Osteocyte: An Endocrine Cell … and More
Dallas, S. L., Prideaux, M., & Bonewald, L. F. (2013) · Endocrine Reviews · doi:10.1210/er.2012-1026 · Cited by 1,042
Mechanisms of Anabolic Therapies for Osteoporosis
Canalis, E., Giustina, A., & Bilezikian, J. P. (2007) · New England Journal of Medicine · doi:10.1056/nejmra067395 · Cited by 668
Metadata
- Authors
- Bellido, T., Ali, A. A., Gubrij, I., Plotkin, L. I., Fu, Q., O’Brien, C. A., Manolagas, S. C., & Jilka, R. L.
- Venue
- Endocrinology
- Publisher
- The Endocrine Society
- Published
- 2005-11-01
- Volume
- 146
- Issue
- 11
- Pages
- 4577-4583
- ISSN
- 0013-7227 (ISSN-L)
- 1945-7170
- OpenAlex
- W2149719379
- Cited by
- 641
- References
- 29
- FWCI
- 8.41
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Chronic Elevation of Parathyroid Hormone in Mice Reduces Expression of Sclerostin by Osteocytes: A Novel Mechanism for Hormonal Control of Osteoblastogenesis. https://app.cochat.ai/papers/10.1210/en.2005-0239
- The paper
- Bellido, T., Ali, A. A., Gubrij, I., Plotkin, L. I., Fu, Q., O’Brien, C. A., Manolagas, S. C., & Jilka, R. L. (2005). Chronic Elevation of Parathyroid Hormone in Mice Reduces Expression of Sclerostin by Osteocytes: A Novel Mechanism for Hormonal Control of Osteoblastogenesis. Endocrinology. https://doi.org/10.1210/en.2005-0239
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
