Abstract
Beta-2 microglobulin (B2M) is considered as a surrogate marker for middle molecule uremic toxins and a key component in dialysis-related amyloidosis. However, few studies have evaluated role of B2M in patients with chronic kidney disease (CKD). The purpose of this study was to evaluate the association of plasma B2M level with some metabolic and cardiac performance factors in patients with CKD. In this case-control study, we measured plasma B2M level in 86 patients with different stages of CKD and 78 age- and sex-matched individuals, as healthy control group. Then we investigated the association between plasma B2M level and left ventricular hypertrophy, ejection fraction (EF), and left ventricular end-diastolic diameter (LVEDD) in echocardiography and some inflammatory and metabolic factors in patients with CKD. Mean plasma B2M level was significantly higher in patients with CKD than in control group (P < 0.001). It was directly correlated with serum C-reactive protein (r = 0.167, P < 0.001), phosphate (r = 0.112, P < 0.001) levels, and left ventricular mass index (r = 0.438, P < 0.001) and LVEDD (r = 0.275, P < 0.001) in echocardiography. It was also inversely correlated with glomerular filtration rate (r = -0.033, P < 0.001), ...Continue Reading
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