Evidence map›Paper›PMID 16267136›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2005

An IL-7-dependent rebound in thymic T cell output contributes to the bone loss induced by estrogen deficiency.

Michaela Robbie Ryan, Rebecca Shepherd, Jennifer K Leavey, Yuhao Gao, Francesco Grassi, Frederick J Schnell, Wei-Ping Qian, Gilbert J Kersh, M Neale Weitzmann, Roberto Pacifici

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
6.3field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

54 citing papers in PubMed, 136 citations in OpenAlex.

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  17. Bone and the Immune System.Toxicologic pathology · 2017
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 2 countries.

Michaela Robbie RyanDivision of Endocrinology, Emory University School of Medicine, Atlanta, GA 30322, USA.
Rebecca Shepherd
Jennifer K Leavey
Yuhao Gao
Francesco Grassi
Frederick J Schnell
Wei-Ping Qian
Gilbert J Kersh
M Neale Weitzmann
Roberto Pacifici
Emory University · USIstituto Ortopedico Rizzoli · IT

Funding

ENDOCRINOLOGY, METABOLISM, AND DIABETEST32DK007298 · NIDDK · EMORY UNIVERSITY · PI PACIFICI, ROBERTO · 1986 to 2014
$3.2M
Regulation of T Cell TNF ProductionR01AR049659 · NIAMS · EMORY UNIVERSITY · PI PACIFICI, ROBERTO · 2002 to 2012
$2.8M
ESTROGEN REGULATION OF MONOCYTE TNF PRODUCTIONR01DK055746 · NIDDK · EMORY UNIVERSITY · PI PACIFICI, ROBERTO · 2000 to 2004
$1.1M
A Novel Therapeutic Agent for Postmenopausal Bone LossR21DK067389 · NIDDK · EMORY UNIVERSITY · PI WEITZMANN, MERVYN NEALE · 2004 to 2005
$306k
NIAMS NIH HHS AR49659NIAMS NIH HHS R01 AR049659NIDDK NIH HHS DK067389NIDDK NIH HHS DK55746NIDDK NIH HHS R01 DK055746NIDDK NIH HHS R21 DK067389NIDDK NIH HHS T32 DK007298
6 · The paper itself

Abstract

The bone wasting induced by estrogen deficiency is, in part, a consequence of increased T cell production of the osteoclastogenic cytokine TNF-alpha. This phenomenon is due to an expansion of T cells, but the responsible mechanism is unknown. We now show that ovariectomy (ovx) disregulates T lymphopoiesis and induces bone loss by stimulating, through a rise in IL-7 levels, both thymic-dependent differentiation of bone marrow-derived progenitors and thymic-independent, peripheral expansion of mature T cells. Attesting to the relevance of the thymic effects, thymectomy decreases by approximately 50% the bone loss and the stimulation of T lymphopoiesis induced by ovx. In contrast, in vivo attenuation of the elevated IL-7 completely prevents the stimulation of T lymphopoiesis and the bone loss that follow ovx. Thus, the disruption of both T cell and bone homeostasis induced by ovx is mediated by IL-7 and due to both the thymic and extrathymic mechanisms. We conclude that IL-7 is a pivotal upstream target through which estrogen regulates hematopoietic and immune functions that are critical for bone homeostasis.

Indexed as

AnimalsBase SequenceDNA PrimersEstrogensFemaleHomeostasisInterleukin-7Lymphocyte ActivationMiceMice, Inbred C57BLOsteoporosisOvariectomyThymus GlandT-LymphocytesTumor Necrosis Factor-alphaDNA PrimersEstrogensInterleukin-7Tumor Necrosis Factor-alpha

Identifiers

PMID16267136
PMCPMC1283799
OpenAlexW1968078709

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.