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Exploring the relationship between β-adrenergic receptor kinase-1 and physical symptoms in heart failure

      Abstract

      Background

      The relationship between physical heart failure (HF) symptoms and pathophysiological mechanisms is unclear.

      Objective

      To quantify the relationship between plasma β-adrenergic receptor kinase-1 (βARK1) and physical symptoms among adults with HF.

      Methods

      We performed a secondary analysis of data collected from two studies of adults with HF. Plasma βARK1 was quantified using an enzyme-linked immunosorbent assay. Physical symptoms were measured with the HF Somatic Perception Scale (HFSPS). Generalized linear modeling was used to quantify the relationship between βARK1 and HFSPS scores.

      Results

      The average age (n = 94) was 54.5 ± 13.1 years, 76.6% were male, and a majority (83.0%) had Class III or IV HF. βARK1 was significantly associated with HFSPS scores (β = 0.22 ± 0.10, p = 0.038), adjusting for other predictors of physical symptoms (model R2 = 0.250, F(7, 70) = 3.34, p = 0.004).

      Conclusions

      Higher βARK1 is associated with worse physical HF symptoms, pinpointing a potential pathophysiologic underpinning.

      Keywords

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