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Sobczyk, M.K.* ; Faber, B.G.* ; Southam, L. ; Frysz, M.* ; Hartley, A.* ; Zeggini, E. ; Tang, H.* ; Gaunt, T.R.*

Causal relationships between anthropometric traits, bone mineral density, osteoarthritis and spinal stenosis: A Mendelian randomisation investigation.

Osteoarthr. Cartil. 32, 719-729 (2023)
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OBJECTIVE: Spinal stenosis is a common condition among older individuals, with significant morbidity attached. Little is known about its risk factors but degenerative conditions, such as osteoarthritis (OA) have been identified for their mechanistic role. This study aims to explore causal relationships between anthropometric risk factors, OA, and spinal stenosis using Mendelian randomisation (MR) techniques. DESIGN: We applied two-sample MR to investigate the causal relationships between genetic liability for select risk factors and spinal stenosis. Next, we examined the genetic relationship between OA and spinal stenosis with linkage disequilibrium score regression and Causal Analysis Using Summary Effect estimates MR method. Finally, we used multivariable MR (MVMR) to explore whether OA and body mass index (BMI) mediate the causal pathways identified. RESULTS: Our analysis revealed strong evidence for the effect of higher BMI (odds ratio [OR] = 1.54, 95%CI: 1.41-1.69, p-value = 2.7 × 10-21), waist (OR = 1.43, 95%CI: 1.15-1.79, p-value = 1.5 × 10-3) and hip (OR = 1.50, 95%CI: 1.27-1.78, p-value = 3.3 × 10-6) circumference on spinal stenosis. Strong evidence of causality was also observed for higher bone mineral density (BMD): total body (OR = 1.21, 95%CI: 1.12-1.29, p-value = 1.6 × 10-7), femoral neck (OR = 1.35, 95%CI: 1.09-1.37, p-value = 7.5×10-7), and lumbar spine (OR = 1.38, 95%CI: 1.25-1.52, p-value = 4.4 × 10-11). We detected high genetic correlations between spinal stenosis and OA (rg range: 0.47-0.66), with Causal Analysis Using Summary Effect estimates results supporting a causal effect of OA on spinal stenosis (ORallOA = 1.6, 95%CI: 1.41-1.79). Direct effects of BMI, BMD on spinal stenosis remained after adjusting for OA in the MVMR. CONCLUSIONS: Genetic susceptibility to anthropometric risk factors, particularly higher BMI and BMD can increase the risk of spinal stenosis, independent of OA status. These results may inform preventative strategies and treatments.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Body Mass Index ; Bone Mineral Density ; Lumbar Stenosis ; Mendelian Randomisation ; Osteoarthritis ; Spinal Stenosis; Body-mass Index; Lumbar Spine; Association; Complications; Degeneration; Performance; Insights; Surgery; Obesity; Trends
Language english
Publication Year 2023
HGF-reported in Year 2023
ISSN (print) / ISBN 1063-4584
e-ISSN 1063-4584
Journal Osteoarthritis and Cartilage
Quellenangaben Volume: 32, Issue: 6, Pages: 719-729 Article Number: , Supplement: ,
Publisher Elsevier
Publishing Place 125 London Wall, London, England
Reviewing status Peer reviewed
Institute(s) Institute of Translational Genomics (ITG)
POF-Topic(s) 30205 - Bioengineering and Digital Health
Research field(s) Genetics and Epidemiology
PSP Element(s) G-506700-001
Grants Wellcome Trust
NIHR Academic Clinical Lectureship
National Institute for Health and Care Bristol Biomedical Research Centre
UK Medical Research Council (MRC) as part of the MRC Integrative Epidemiology Unit
DOI 10.1016/j.joca.2023.12.003
WOS ID 001245234300001
Scopus ID 85182353420
PubMed ID 38160745
Erfassungsdatum 2024-01-07
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