Creatinine synthesis rate and muscle strength and self-reported physical health in dialysis patients.

Clinical Nutrition : Official Journal of the European Society of Parenteral and Enteral Nutrition
Enya S J M PoppeCasper F M Franssen

Abstract

Urinary creatinine excretion reflecting endogenous creatinine synthesis rate (CSR) is an established measure of muscle mass in the general populations and in patients with chronic kidney disease. There is increasing data to suggest that CSR not only reflects muscle mass, but also muscle function. In dialysis patients, CSR has rarely been studied since it requires dialysate collection. We aimed to study whether CSR is associated with muscle strength, and self-reported physical health in dialysis patients. Total daily CSR (dialytic removal plus, if applicable, urinary excretion), handgrip strength, and self-reported physical health according subscales of the Checklist Individual Strength and the Short Form-36 were assessed in 50 dialysis patients. Associations of CSR, indexed to body surface area, with handgrip strength and self-reported physical health were studied using multivariable linear regression models. Median age was 69 [interquartile range 60-78] years. Mean CSR was higher in men than in women (9.5 ± 3.3 mmol/24 h versus 6.8 ± 1.9 mmol/24 h respectively, P = 0.007). Age, BMI, and plasma albumin were positively associated with CSR. CSR was positively associated with handgrip strength (adjusted (a-) β: 0.44 [95% CI: 0.18 ...Continue Reading

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Citations

Feb 17, 2021·Clinical Nutrition : Official Journal of the European Society of Parenteral and Enteral Nutrition·Adrian PostCasper F M Franssen
Mar 22, 2021·Journal of Translational Medicine·Adrian PostCasper F M Franssen

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