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. 2022 Jan:341:71-79.
doi: 10.1016/j.atherosclerosis.2021.11.009. Epub 2021 Nov 10.

Associations of endogenous sex hormone levels with the prevalence and progression of valvular and thoracic aortic calcification in the Multi-Ethnic Study of Atherosclerosis (MESA)

Apurva Sharma  1 , Oluseye Ogunmoroti  2 , Oluwaseun E Fashanu  3 , Di Zhao  4 , Pamela Ouyang  2 , Matthew J Budoff  5 , Isac C Thomas  6 , Erin D Michos  7
Affiliations

Associations of endogenous sex hormone levels with the prevalence and progression of valvular and thoracic aortic calcification in the Multi-Ethnic Study of Atherosclerosis (MESA)

Apurva Sharma et al. Atherosclerosis. 2022 Jan.

Abstract

Background and aims: Sex hormones (SH) may contribute to sex differences in cardiovascular disease (CVD). High free testosterone (T) and low sex hormone binding globulin (SHBG) have been associated with progression of coronary artery calcification in women. We now examined the association of SH with extra-coronary calcification (ECC) prevalence and progression among MESA participants.

Methods: We studied 2,737 postmenopausal women and 3,130 men free of clinical CVD with baseline SH levels. ECC measurements [ascending and descending thoracic aortic calcification (ATAC, DTAC), mitral annular calcification (MAC), aortic valve calcification (AVC)] were obtained by computed tomography at baseline and after 2.4 ± 0.9 years. We used multivariable Poisson regression to evaluate associations with ECC prevalence and incidence (Agatston scores >0) and linear mixed effects models for ECC progression, per 1-SD increment in log(SH) in women and men separately.

Results: The mean age was 65 ± 9 and 62 ± 10 years for women and men, respectively. In women, greater free T and lower SHBG were associated with MAC incidence in a demographic-adjusted model only. In men, lower free T was associated with MAC prevalence, DTAC incidence and progression, while greater SHBG was associated with MAC prevalence and DTAC progression after further adjusting for CVD risk factors.

Conclusions: In this diverse cohort free of CVD, we found some associations of SH with ECC measures. In particular, free T was inversely associated with prevalent MAC and DTAC progression in men independent of CVD risk factors. SH may influence vascular calcification, but further work is needed to understand clinical implications of these findings.

Keywords: Descending thoracic aortic calcification; Endogenous sex hormones; Extra coronary calcification; Mitral annular calcification; Sex hormone binding globulin; Testosterone.

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Figures

Figure 1:
Figure 1:
Flow diagram for participant inclusion/exclusion in study for women (A) and men (B)
Figure 1:
Figure 1:
Flow diagram for participant inclusion/exclusion in study for women (A) and men (B)
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References

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