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Related Experiment Video

Updated: Jun 19, 2026

Studies on the Anti-Inflammatory Effect of Xiaoyao Pills in The Treatment of Postmenopausal Osteoporosis in Mice

Studies on the Anti-Inflammatory Effect of Xiaoyao Pills in The Treatment of Postmenopausal Osteoporosis in Mice

Published on: August 23, 2024

Immune changes in post-menopausal osteoporosis: the Immunos study.

V Breuil¹, M Ticchioni, J Testa

¹Service de Rhumatologie, CHU de Nice, Hôpital l'Archet, Nice, France. breuil@unice.fr

Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA

|October 31, 2009

Summary

Postmenopausal osteoporosis is linked to immune system changes, including altered B lymphocyte populations and lower interferon-gamma (IFN-gamma) secretion by CD4+ cells, impacting bone health.

Related Experiment Videos

Last Updated: Jun 19, 2026

Studies on the Anti-Inflammatory Effect of Xiaoyao Pills in The Treatment of Postmenopausal Osteoporosis in Mice

Studies on the Anti-Inflammatory Effect of Xiaoyao Pills in The Treatment of Postmenopausal Osteoporosis in Mice

Published on: August 23, 2024

Area of Science:

Immunology
Osteoporosis Research
Bone-Immune System Interaction

Background:

Investigating the interplay between the skeletal and immune systems is crucial for understanding osteoporosis.
Previous research has not fully elucidated the immune cell profiles in postmenopausal women with osteoporotic fractures.

Purpose of the Study:

To compare the phenotypic and functional characteristics of immune cells in postmenopausal women with osteoporotic fractures versus healthy controls.
To identify specific immune cell populations and cytokine profiles associated with osteoporosis.

Main Methods:

Analysis of surface markers on peripheral B, CD4+, and CD8+ lymphocytes.
Assessment of cytokine secretion (IFN-gamma, GM-CSF) from cultured immune cells.
Measurement of bone mineral density (BMD) and body composition using dual-energy X-ray absorptiometry.

Main Results:

Osteoporotic women exhibited lower levels of specific B lymphocyte subsets and CD4+ T cells correlated with BMD.
Basal secretion of interferon-gamma (IFN-gamma) by CD4+ cells was significantly lower in osteoporotic women.
B lymphocytes from osteoporotic women showed increased granulocyte-macrophage colony-stimulating factor (GM-CSF) secretion, correlated with fracture rate.

Conclusions:

Postmenopausal osteoporosis is associated with distinct immune system alterations, irrespective of age and estrogen levels.
Changes in B lymphocyte populations and IFN-gamma secretion may play a role in osteoporosis pathophysiology.
These immune dysregulations could contribute to the frailty and increased morbidity/mortality observed in patients with osteoporotic fractures.