Visceral adipose tissue and osteoarthritis, a two-sample Mendelian randomized study

Area of Science:

• Genetics
• Epidemiology
• Metabolic Health

Background:

• The connection between visceral adipose tissue (VAT) and osteoarthritis (OA) remains unclear.
• Understanding this relationship is crucial for developing targeted OA prevention and treatment strategies.

Purpose of the Study:

• To investigate the association between genetically predicted visceral adipose tissue and various forms of osteoarthritis.
• To explore the link between VAT and overall OA, as well as hand, hip, knee, and spine OA.

Main Methods:

• Employed a two-sample Mendelian randomization approach.
• Utilized single-nucleotide polymorphisms (SNPs) strongly associated with VAT as instrumental variables.
• Conducted sensitivity analyses to ensure the robustness and reliability of the findings.

Main Results:

• Visceral adipose tissue demonstrated a significant association with all osteoarthritis, hip osteoarthritis, knee osteoarthritis, and spine osteoarthritis.
• Specific odds ratios (OR) and confidence intervals (CI) confirmed these associations, with p-values indicating high statistical significance (e.g., OA: OR=1.399, 95% CI: 1.335-1.467, p=7.95e-44).
• Sensitivity analyses corroborated the reliability of the observed associations.

Conclusions:

• Genetically predicted visceral adipose tissue is significantly associated with an increased risk of osteoarthritis.
• Reducing visceral adipose tissue accumulation may be a potential therapeutic target for mitigating OA incidence and progression.