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The Association Between Facial Ageing and Bone Mineral Density: A Mendelian Randomisation Study
Summary
Facial ageing does not causally influence bone mineral density (BMD). This Mendelian randomisation study found no link between facial aging traits and osteoporosis risk across multiple skeletal sites.
Area of Science:
- Genetics and Bone Health
- Epidemiology
Background:
- Facial aging is a visible indicator of aging, but its relationship with bone mineral density (BMD) remains unclear.
- Osteoporosis, characterized by low BMD, is a significant public health concern, increasing fracture risk.
Purpose of the Study:
- To investigate the potential causal relationship between facial aging characteristics and BMD using Mendelian randomization (MR).
- To determine if genetic predispositions for facial aging are associated with BMD in different skeletal regions.
Main Methods:
- A two-sample Mendelian randomization study was conducted.
- Single-nucleotide polymorphisms (SNPs) associated with facial aging were used as instrumental variables.
- Associations were examined with total body BMD, femoral neck BMD, forearm BMD, and lumbar spine BMD.
Main Results:
- No statistically significant causal association was found between facial aging and total body BMD (p = 0.1982).
- Similarly, no causal link was observed between facial aging and femoral neck BMD (p = 0.5643), forearm BMD (p = 0.7949), or lumbar spine BMD (p = 0.8987).
Conclusions:
- Facial aging characteristics do not appear to have a causal effect on bone mineral density.
- Osteoporosis cannot be reliably predicted or inferred from an individual's facial aging patterns.
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