Risk relationship between osteoporosis and plasma proteins

Area of Science:

• Genetics and Molecular Biology
• Biochemistry
• Public Health

Background:

• Osteoporosis (OP) is a significant public health concern requiring better understanding of its mechanisms.
• Identifying effective therapeutic targets for OP is crucial for clinical management.

Purpose of the Study:

• To investigate the causal relationships between plasma proteins and bone mineral density (BMD) using Mendelian randomization.
• To identify potential therapeutic targets for osteoporosis by analyzing plasma protein associations with BMD.

Main Methods:

• Mendelian randomization analysis of 4907 plasma proteins and BMD data.
• Utilized inverse variance weighted and MR-Egger methods, with strict criteria for instrumental variables.
• Functional enrichment analysis (GO, pathway) and protein-protein interaction networks (GeneMANIA) were performed.

Main Results:

• Identified 22 plasma proteins significantly associated with osteoporosis.
• Functional enrichment revealed links to Notch signaling and Toll-like receptor signaling pathways.
• Proteins like RAB6B and UDP-glucose dehydrogenase exacerbate OP, while LBP and MANIFEST protect against it.

Conclusions:

• Established causal links between specific plasma proteins and BMD, highlighting their role in osteoporosis.
• Identified protective and detrimental plasma proteins that could serve as prognostic markers and therapeutic targets for OP.