02598nas a2200241 4500008004100000022001400041245003600055210003500091260001300126300001200139490000700151520201600158100001402174700001802188700001502206700001802221700001702239700001102256700001902267700001602286700001802302856003602320 2016 eng d a1433-296500aSoluble CD14 and fracture risk.0 aSoluble CD14 and fracture risk c2016 May a1755-630 v273 a

UNLABELLED: Soluble CD14 (sCD14) is an inflammatory marker associated with osteoclasts. Using Cox proportional hazards models, we found a positive association between plasma levels of sCD14 and risk of incident fracture among participants in the Cardiovascular Health Study. sCD14 may be useful in identifying those at risk for fracture.

INTRODUCTION: Soluble CD14, a proinflammatory cytokine, is primarily derived from macrophages/monocytes that can differentiate into osteoclasts. The purpose of this study was to examine the relationship between sCD14 levels and osteoporotic fractures.

METHODS: In the Cardiovascular Health Study, 5462 men and women had sCD14 levels measured at baseline. Incident hip fractures (median follow-up time 12.5 years) and incident composite fractures (defined as the first hip, pelvis, humerus, or distal radius fracture, median follow-up 8.6 years) were identified from hospital discharge summaries and/or Medicare claims data. Cox proportional hazards models were used to model the association between sCD14 levels and time to incident hip or composite fracture, overall and as a function of race and gender.

RESULTS: In unadjusted models, there was a positive association between sCD14 levels (per 1 standard deviation increase, i.e., 361.6 ng/mL) and incident hip (HR, 1.26; 95 % CI, 1.17, 1.36) and composite (HR, 1.20; 95 % CI, 1.12, 1.28) fractures. When models were fully adjusted for demographics, lifestyle factors, and medication use, these associations were no longer significant. However, in whites, the association of sCD14 levels with hip fractures remained significant in fully adjusted models (HR, 1.11; 95 % CI, 1.01-1.23). Associations of sCD14 levels with hip and composite fracture did not differ between men and women.

CONCLUSIONS: In this large cohort of community-dwelling older adults, higher sCD14 levels were associated with an increased risk of incident hip fractures in whites.

1 aBethel, M1 aBůžková, P1 aFink, H, A1 aRobbins, J, A1 aCauley, J, A1 aLee, J1 aBarzilay, J, I1 aJalal, D, I1 aCarbone, L, D uhttps://chs-nhlbi.org/node/6926