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Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats

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[Semaphorin and osteoporosis.]

Mikihito Hayashi¹, Tomoki Nakashima²

¹Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan.

Clinical Calcium

|September 27, 2016

Summary

Semaphorins are key in bone health and may impact lung function. Further research into Semaphorin signaling could reveal links between osteoporosis and chronic obstructive pulmonary disease (COPD).

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Area of Science:

Molecular Biology
Cell Biology
Physiology

Background:

Semaphorins, initially known for neuronal guidance, are now recognized for diverse roles in tissues.
Semaphorin 3A (Sema3A) and Sema4D are crucial for bone homeostasis, with other semaphorins also influencing bone metabolism.
The role of semaphorins in lung function remains largely uncharacterized despite their high expression in lung tissue.

Purpose of the Study:

To investigate the under-explored functions of semaphorins in lung tissue.
To explore the potential crosstalk between bone and lung via semaphorin signaling.
To understand the implications for diseases like chronic obstructive pulmonary disease (COPD) and osteoporosis.

Main Methods:

Literature review of semaphorin functions in bone and lung.
Analysis of existing data on semaphorin expression in various tissues.
Review of studies linking COPD and osteoporosis.

Main Results:

Semaphorins play significant roles in bone cell biology and homeostasis.
High expression of various semaphorins in the lung suggests potential functional importance.
Emerging evidence indicates a connection between bone and lung pathologies.

Conclusions:

Semaphorin signaling represents a potential mechanism for bone-lung crosstalk.
Understanding semaphorin roles in the lung is critical given the comorbidity of COPD and osteoporosis.
Further investigation into semaphorin pathways may offer new therapeutic targets for related diseases.