Sex-Specific Associations Between Cardiac Workload, Peripheral Vascular Calcification, and Bone Mineral Density: The

Ayse Zengin1,2, Landing M Jarjou3, Ramatoulie E Janha3

  • 1Department of Medicine, School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Australia.

Insights

Noncommunicable diseases like osteoporosis and cardiovascular disease are rising in Africa. This study found poorer bone health in Gambian women linked to cardiac issues, highlighting the need for preventative strategies.

Area of Science:

  • Gerontology and Geriatric Medicine
  • Cardiovascular Health
  • Bone Metabolism and Osteoporosis Research

Background:

  • Noncommunicable diseases (NCDs), including osteoporosis and cardiovascular disease (CVD), are increasing in Africa, often co-occurring (multimorbidity).
  • Osteoporosis and CVD share common risk factors and frequently go undiagnosed until critical events occur.
  • Understanding the interplay between cardiac health and bone density is crucial for public health strategies in aging populations.

Purpose of the Study:

  • To investigate the associations between cardiac workload, peripheral vascular calcification (PVC), and bone parameters in Gambian adults.
  • To explore sex-specific differences in the relationship between cardiovascular health markers and bone density.
  • To inform preventative strategies for the rising burden of CVD and osteoporosis in Sub-Saharan Africa.

Main Methods:

  • The Gambian Bone and Muscle Aging Study (GamBAS) included 249 women and 239 men (aged 40-75+).
  • Measurements included body composition, areal bone mineral density (aBMD) via DXA, and peripheral quantitative computed tomography (pQCT) of the radius and tibia.
  • Cardiac workload (rate pressure product, pulse pressure) and peripheral vascular calcification (PVC) were assessed; sex interactions were analyzed.

Main Results:

  • Negative associations were observed between cardiac workload markers (rate pressure product, pulse pressure) and aBMD in women only (p-int < 0.05).
  • Increased cardiac workload correlated with lower aBMD at multiple sites in women, even after adjusting for lean mass and fat mass.
  • Peripheral vascular calcification (PVC) was present in 22.5% of women and 26.6% of men; women with PVC showed poorer cardiac health and reduced aBMD (p-int < 0.001).

Conclusions:

  • Multiple markers of cardiac health are significantly associated with poorer bone health in Gambian women.
  • These findings underscore the link between cardiovascular and skeletal health, particularly in aging African populations.
  • There is an urgent need for preventative strategies to address the growing burden of cardiovascular disease and osteoporosis in Sub-Saharan Africa.

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