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SummaryBackground and objectives Observational studies have reported an association between metabolic syndrome (MetS) and microalbuminuria or proteinuria and chronic kidney disease (CKD) with varying risk estimates. We aimed to systematically review the association between MetS, its components, and development of microalbuminuria or proteinuria and CKD.Design, setting, participants and measurements and population We searched MEDLINE (1966 to October 2010), SCOPUS, and the Web of Science for prospective cohort confidence interval (CI) studies that reported the development of microalbuminuria or proteinuria and/or CKD in participants with MetS. Risk estimates for eGFR Ͻ60 ml/min per 1.73 m 2 were extracted from individual studies and pooled using a random effects model. The results for proteinuria outcomes were not pooled because of the small number of studies.Results Eleven studies (n ϭ 30,146) were included. MetS was significantly associated with the development of eGFR Ͻ60 ml/min per 1.73 m 2 (odds ratio, 1.55; 95% CI, 1.34, 1.80). The strength of this association seemed to increase as the number of components of MetS increased (trend P value ϭ 0.02). In patients with MetS, the odds ratios (95% CI) for development of eGFR Ͻ60 ml/min per 1.73 m 2 for individual components of MetS were: elevated blood pressure 1

OBJECTIVES: To investigate cognitive impairment in older, ethnically diverse individuals with a broad range of kidney function, to evaluate a spectrum of cognitive domains, and to determine whether the relationship between chronic kidney disease (CKD) and cognitive function is independent of demographic and clinical factors. DESIGN: Cross-sectional. SETTING: Chronic Renal Insufficiency Cohort Study. PARTICIPANTS: Eight hundred twenty-five adults aged 55 and older with CKD. MEASUREMENTS: Estimated glomerular filtration rate (eGFR, mL/min per 1.73 m 2 ) was estimated using the fourvariable Modification of Diet in Renal Disease equation. Cognitive scores on six cognitive tests were compared across eGFR strata using linear regression; multivariable logistic regression was used to examine level of CKD and clinically significant cognitive impairment (score 1 standard deviations from the mean). RESULTS: Mean age of the participants was 64.9, 50.4% were male, and 44.5% were black. After multivariable adjustment, participants with lower eGFR had lower cognitive scores on most cognitive domains (Po.05). In addition, participants with advanced CKD (eGFRo30) were more likely to have clinically significant cognitive impairment on global cognition (adjusted odds ratio (AOR) 2.0, 95% CI 5 1.1-3.9), naming (AOR 5 1.9, 95% CI 5 1.0-3.3), attention (AOR 5 2.4, 95% CI 5 1.3-4.5), executive function (AOR 5 2.5, 95% CI 5 1.9-4.4), and delayed memory (AOR 5 1.5, 95% CI 5 0.9-2.6) but not on category fluency (AOR 5 1.1, 95% CI 5 0.6-2.0) than those with mild to moderate CKD (eGFR 45-59). CONCLUSION: In older adults with CKD, lower level of kidney function was associated with lower cognitive function on most domains. These results suggest that older patients with advanced CKD should be screened for cognitive impairment. J Am Geriatr Soc 58: 338-345, 2010.

NDIVIDUALS WITH MODERATE TOsevere renal disease have an impaired ability to excrete phosphorus. As a result, they tend to develop hyperphosphatemia, especially in settings of high phosphorus intake. Elevated serum phosphorus levels are independently associated with increased mortality and morbidity. For example, serum phosphorus levels greater than the 5.5-mg/dL level recommended by practice guidelines are independently associated with a 20% to 40% increase in mortality risk among patients with end-stage renal disease (ESRD). [1][2][3][4][5][6][7][8][9] In addition, hyperphosphatemia appears to be involved in the development of atherosclerotic heart disease, secondary hyperparathyroidism, and bone disease among renal patients. [10][11][12] High phosphorus intake may also be detrimental for the general public. The dietary phosphorus intake of individuals in the United States has been in-creasing, while intake of calcium has been decreasing. 13 There is evidence to suggest that these intake patterns in-terfere with the normal process of calcium regulation and affect both peak bone mass and rate of bone loss, even See also Patient Page.

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Among paid donors in India, selling a kidney does not lead to a long-term economic benefit and may be associated with a decline in health. Physicians and policy makers should reexamine the value of using financial incentives to increase the supply of organs for transplantation.

Protein-energy wasting (PEW), which is manifested by low serum levels of albumin or prealbumin, sarcopenia and weight loss, is one of the strongest predictors of mortality in patients with chronic kidney disease (CKD). Although PEW might be engendered by non-nutritional conditions, such as inflammation or other comorbidities, the question of causality does not refute the effectiveness of dietary interventions and nutritional support in improving outcomes in patients with CKD. The literature indicates that PEW can be mitigated or corrected with an appropriate diet and enteral nutritional support that targets dietary protein intake. In-center meals or oral supplements provided during dialysis therapy are feasible and inexpensive interventions that might improve survival and quality of life in patients with CKD. Dietary requirements and enteral nutritional support must also be considered in patients with CKD and diabetes mellitus, in patients undergoing peritoneal dialysis, renal transplant recipients, and in children with CKD. Adjunctive pharmacological therapies, such as appetite stimulants, anabolic hormones, and antioxidative or anti-inflammatory agents, might augment dietary interventions. Intraperitoneal or intradialytic parenteral nutrition should be considered for patients with PEW whenever enteral interventions are not possible or are ineffective. Controlled trials are needed to better assess the effectiveness of in-center meals and oral supplements.

Malnutrition was common in hospitalized patients with medical illness and was associated with greater mortality, delayed functional recovery, and higher rates of nursing home use. These adverse outcomes were not explained by greater acute illness severity, comorbidity, or functional dependence in malnourished patients on hospital admission.