Uric acid may mediate aspects of the relationship between hypertension and kidney disease via renal vasoconstriction and systemic hypertension. To investigate the relationship between uric acid and subsequent reduced kidney function, limited-access data of 13,338 participants with intact kidney function in two community-based cohorts, the Atherosclerosis Risks in Communities and the Cardiovascular Health Study, were pooled. Mean baseline serum uric acid was 5.9 Ϯ 1.5 mg/dl, mean baseline serum creatinine was 0.9 Ϯ 0.2 mg/dl, and mean baseline estimated GFR was 90.4 Ϯ 19.4 ml/min/1.73 m 2 . During 8.5 Ϯ 0.9 yr of follow-up, 712 (5.6%) had incident kidney disease defined by GFR decrease (Ն15 ml/min/1.73 m 2 with final GFR Ͻ60 ml/min/1.73 m 2 ), while 302 (2.3%) individuals had incident kidney disease defined by creatinine increase (Ն0.4 mg/dl with final serum creatinine Ͼ1.4 mg/dl in men and 1.2 mg/dl in women). In GFR-and creatinine-based logistic regression models, baseline uric acid level was associated with increased risk for incident kidney disease (odds ratio 1.07 [95% confidence interval 1.01 to 1.14] and 1.11 [95% confidence interval 1.02 to 1.21] per 1-mg/dl increase in uric acid, respectively), after adjustment for age, gender, race, diabetes, systolic BP, hypertension, cardiovascular disease, left ventricular hypertrophy, smoking, alcohol use, education, lipids, albumin, hematocrit, baseline kidney function and cohort; therefore, elevated serum uric acid level is a modest, independent risk factor for incident kidney disease in the general population.

The Framingham instrument demonstrates poor overall accuracy in predicting cardiac events in individuals with CKD, although refit models can substantially improve discrimination. Calibration in women can be moderately improved with adjustment for higher event rates. Development of CKD-specific equations is needed.

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Background-Chronic kidney disease (CKD) and obesity are important public health concerns. We examined the association between anthropomorphic measures and incident CKD and mortality.

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Background-Chronic kidney disease is associated with an increased risk for cardiovascular disease and mortality. Both traditional and non-traditional cardiovascular disease risk factors may contribute.

WHR, but not BMI, is associated with cardiac events in persons with CKD. Relying exclusively on BMI may underestimate the importance of obesity as a cardiovascular disease risk factor in persons with CKD.

Rhabdomyolysis is a common clinical syndrome and accounts for 7% of all cases of acute kidney injury (AKI) in the USA. It can result from a wide variety of disorders, such as trauma, exercise, medications and infection, but in the pediatric population, infection and inherited disorders are the most common causes of rhabdomyolysis. Approximately half of patients with rhabdomyolysis present with the triad of myalgias, weakness and dark urine. The clinical suspicion, especially in the setting of trauma or drugs, is supported by elevated creatinine kinase levels and confirmed by the measurement of myoglobin levels in serum or urine. Muscle biopsy and genetic testing should be performed if rhabdomyolysis is recurrent or metabolic myopathy is suspected. Early recognition is important to prevent AKI through the use of aggressive hydration. Prevention is important in patients with inherited forms, but novel therapies may be developed with the better understanding of the pathophysiology and genetics of rhabdomyolysis.