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Lipid levels: a link between cardiovascular disease and osteoporosis?
Petra J Buizert1, Natasja M van Schoor, Paul Lips
1Department of Internal Medicine, Section Endocrinology, VU University Medical Centre, Amsterdam, The Netherlands.
Insights
Higher high-density lipoprotein cholesterol (HDL-c) levels, beneficial for cardiovascular disease (CVD) prevention, were linked to lower bone mineral density (BMD). This suggests a complex relationship between lipids and osteoporosis risk.
Area of Science:
- Gerontology
- Cardiovascular Health
- Bone Metabolism
Background:
- Epidemiological studies suggest a link between cardiovascular diseases (CVD) and osteoporosis.
- Cholesterol has been implicated as a potential mediator in this association.
- The relationship between serum lipids and bone mineral density (BMD) requires further investigation.
Purpose of the Study:
- To investigate the association between serum lipid profiles and BMD of the calcaneus.
- To determine if lipid profiles favorable for CVD prevention are also favorable for bone health.
Main Methods:
- Cross-sectional population-based study using data from the Longitudinal Aging Study Amsterdam.
- Inclusion of 620 men and 635 women aged 65-88 years.
- BMD measurement using quantitative ultrasound (QUS), assessing velocity of sound (VOS) and broadband ultrasound attenuation (BUA), with adjustments for multiple covariates.
Main Results:
- No significant association was found between total cholesterol (TC) and QUS.
- Higher high-density lipoprotein cholesterol (HDL-c) levels were significantly associated with lower QUS in both men and women.
- A stronger positive association was observed between the TC/HDL-c ratio and QUS in both sexes.
Conclusions:
- The lipid profile optimal for CVD prevention (high HDL-c, low TC/HDL-c ratio) appears unfavorable for calcaneal BMD.
- High HDL-c levels may not explain the observed association between osteoporosis and CVD.
- These findings highlight a potential dichotomy in the role of lipids concerning cardiovascular and bone health.
Abstract:
Epidemiological observations support a positive relationship between cardiovascular diseases (CVD) and osteoporosis, where cholesterol has been indicated to be a possible link. Only a few studies have investigated the relation between lipids and BMD, but the association remains unclear. We studied the relationship between serum lipids and BMD of the calcaneus. A cross-sectional population-based study was performed, based on data from the Longitudinal Aging Study Amsterdam, including 620 men and 635 women, 65-88 yr of age. BMD was measured by quantitative ultrasound (QUS), velocity of sound (VOS; m/s), and broadband ultrasound attenuation (BUA; dB/MHz). Models were adjusted for age, body mass index, physical activity, smoking, alcohol, diabetes mellitus, hypertension, testosterone, and 25-hydroxyvitamin D. No association was found between total cholesterol (TC) and QUS. Men and women in the highest quartile of high-density lipoprotein cholesterol (HDL-c) had a significantly lower QUS (men-VOS: beta = -20.8, p = 0.00; BUA: beta = -5.2, p = 0.02; women-VOS: beta = -18.6, p = 0.00) compared with men and women in the lowest quartile. An even stronger positive association was seen between TC/HDL-c ratio and QUS (men-VOS: beta = 21.8, p = 0.00; BUA: beta = 5.5, p = 0.01; women-VOS: beta = 19.2, p = 0.00; BUA: beta = 3.6, p = 0.05). Our analysis shows that the lipid profile that is favorable in the prevention of CVD (i.e., high levels of HDL-c and low TC/HDL-c ratio) is unfavorable for QUS. These results indicate that HDL-c levels do not explain the association between osteoporosis and CVD.
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