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Chronic kidney disease (CKD) is a serious threat to African-American public health. In this population CKD progresses to end-stage renal disease (ESRD) at quadruple the rate in Caucasians. Factors fueling progression to ESRD include diabetes and hypertension, which show high prevalences and accelerated renal damage in African- Americans, as well as possible nutritional, socioeconomic, and genetic factors. Anemia, a common and deleterious complication of CKD, is more prevalent and severe in African-American than Caucasian patients at each stage of the disease. Proactive management of diabetes, hypertension, anemia, and other complications throughout the course of CKD can prevent or delay disease progression and alleviate the burden of ESRD for the African-American community. Currently, African-Americans with CKD are less likely than Caucasian patients to receive anemia treatment before and after the onset of dialysis. Although African-Americans often require higher doses of erythropoiesis-stimulating agents, this may result from late treatment initiation, lower hemoglobin levels, or the presence of comorbidities such as diabetes and inflammation, although racial differences in response cannot be excluded. This review explores racial-specific challenges and potential solutions in renal anemia management to improve outcomes in African-American patients.
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PMID:The role of anemia management in improving outcomes for African-Americans with chronic kidney disease. 1843 12

Chronic kidney disease (CKD) is known as a risk factor for cardiovascular disease. In recent years, several experimental and epidemiological studies have suggested that CKD is associated with endothelial dysfunction; thereby, a CKD state may initiate both large and small vessel damage. The association between renal dysfunction and asymptomatic lacunar infarction was reported in a hospital-based study, whereas the relationship between cerebral small vessel disease (SVD)-related lesions and CKD could not be clarified in a community-based study. We performed a cross-sectional study to determine the relationship between silent cerebral SVD-related lesions and CKD in a total of 625 community-based Japanese elderly. In this study, subjects with lower estimated glomerular filtration rate levels tended to have more lacunar infarcts and higher grades of white matter lesions (WMLs). In addition, the mean grades of WMLs or the mean numbers of lacunar infarction in the subjects with albuminuria were greater than those in subjects without albuminuria. In the logistic regression analysis, the association between the presence of CKD and lacunar infarction or moderate WMLs (Fazekas grades 2 and 3) was statistically significant (odds ratio [OR]: 1.86 and 1.50, respectively). Furthermore, as we performed additional analysis, excluding the subjects with stage 2 hypertension (those with casual blood pressure >or=160/100 mm Hg) or diabetes, CKD remained to be an independent risk for cerebral SVD-related lesions. This is the first study showing the relationship between silent SVD-related brain lesions and the presence of CKD, independently of conventional cardiovascular risk factors, in community-based elderly.
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PMID:Cerebral small vessel disease and chronic kidney disease (CKD): results of a cross-sectional study in community-based Japanese elderly. 1853 99

Treatment of patients at high risk for developing cardiovascular disease aims at controlling blood pressure, optimizing blood glucose levels, and providing renoprotection. Chronic kidney disease (CKD) and diabetes mellitus are prevalent causes of cardiovascular disease owing to associations with major cardiovascular risk factors, such as hypertension, and they are substantial health burdens. Even mild-to-moderate CKD and prehypertension increase cardiovascular risk. First-line agents for reducing cardiovascular risk are inhibitors of the renin-angiotensin system: angiotensin-converting enzyme (ACE) inhibitors and angiotensin II receptor blockers (ARBs). In clinical trials, treatment of high-risk patients with ACE inhibitors and ARBs delays or prevents the onset of diabetes and prevents progression of renal disease and cardiovascular events, including cardiovascular mortality. Current evidence indicates that the clinical efficacy of these end points includes effects that may be beyond blood pressure reduction.
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PMID:Management of hypertension in patients with chronic kidney disease and diabetes mellitus. 1863 14

Chronic kidney disease (CKD) has been shown to be an independent risk factor for cardiovascular disease (CVD) in a number of recent epidemiological studies. There are possible explanations for the independent association of CKD with CVD. Reduced renal function is associated with a high prevalence of traditional CVD risk factors, such as hypertension, diabetes, dyslipidemia, and left ventricular hypertrophy. In addition, reduced renal function may be associated with increased levels of nontraditional risk factors, such as inflammation and oxidative stress. Subjects with CKD should be considered a high-risk population for CVD and be recommended for more intensive preventive management of CVD, including active detection and strict treatment of CVD risk factors.
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PMID:[Chronic kidney disease (CKD) as an independent risk factor for cardiovascular disease (CVD)]. 1878 91

Chronic kidney disease (CKD) is common in Japan and worldwide. The estimated prevalence of CKD in Japanese adults was 10.6% in 2005, based on the survey conducted by the Japanese Society of Nephrology. The most common risk factors for CKD include diabetes, hypertension and cardiovascular disease. Major outcomes of CKD include progression to kidney failure and increased risk for cardiovascular disease. CKD is usually silent until its late stages, thus many patients with CKD are detected only shortly before the onset of symptomatic kidney failure, when there are few opportunities to prevent adverse outcomes. Earlier detection allows for more time for evaluation and treatment but requires explicit testing strategies for asymptomatic individuals at increased risk. Understanding the strengths and limitations of CKD testing and risk factors of CKD is critical for appropriate management of CKD patients. The goal of this paper is to discuss CKD testing and early detection in clinical practice and its application to public health initiatives, with attention to limitations and appropriate interpretation.
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PMID:[Causes and characteristics of CKD]. 1878 92

Chronic kidney disease (CKD) is a major risk factor for the development of cardiovascular disease (CVD). Abnormalities of renal hemodynamics are associated with CKD. Abnormalities in renal hemodynamics include blood flow into glomeruli, and tubulointerstitial tissue. Renin-angiotensin system, oxidative stress and NOS system affect abnormalities of renal hemodynamics in CKD. Further, intrarenal hemodynamic abnormalities are strongly associated with systemic arteriosclerosis. Appropriate regulation of renal hemodynamics and controls of hypertension and diabetes mellitus retard the progression of both CKD and CVD.
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PMID:[Abnormalities in renal hemodynamics]. 1878 95

Chronic kidney disease (CKD) is characterized by proteinuria and kidney dysfunction caused by multiple factors. Metabolic disorders such as diabetes, dyslipidemia and hypertension are involved in the underlying pathological mechanisms of CKD and cardiovascular disease (CVD). In patients with CKD, CVD is a major cause of morbidity and mortality. Recent clinical studies have revealed that intervention by angiotensin II blockade with ARB and ACEI reduces CKD and CVD. Accordingly, earlier intervention to metabolic disorders with blockers for angiotensin II and aldosterone may prevent CKD as well as CVD associated with CKD.
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PMID:[Prevention of CVD in patients with CKD]. 1878 4

Chronic kidney disease (CKD) is considered a risk factor for both end-stage renal disease (ESRD) and cardiovascular disease. Early detection and treatment of CKD is likely to be the key factor to prevent them. According to the Japanese Society for Dialysis Therapy, the prevalence of treated ESRD has increased to >2,000 per million population. More than 40% of ESRD incidents are due to diabetes mellitus. The Japanese Society of Nephrology estimates the prevalence of a low GFR (<60 ml/min/1.73 m(2)) to be around 10% of the community-based screening participants. However, such a high CKD prevalence requires detailed and critical confirmatory studies and analyses, many of which are currently underway in Japan.
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PMID:Chronic kidney disease in Japan from early predictions to current facts. 1899 69

Chronic kidney disease (CKD) guidelines recommend evaluating patients with GFR <60 ml/min per 1.73 m(2) for complications, but little evidence supports the use of a single GFR threshold for all metabolic disorders. We used data from the NephroTest cohort, including 1038 adult patients who had stages 2 through 5 CKD and were not on dialysis, to study the occurrence of metabolic complications. GFR was measured using renal clearance of (51)Cr-EDTA (mGFR) and estimated using two equations derived from the Modification of Diet in Renal Disease study. As mGFR decreased from 60 to 90 to <20 ml/min per 1.73 m(2), the prevalence of hyperparathyroidism increased from 17 to 85%, anemia from 8 to 41%, hyperphosphatemia from 1 to 30%, metabolic acidosis from 2 to 39%, and hyperkalemia from 2 to 42%. Factors most strongly associated with metabolic complications, independent of mGFR, were younger age for acidosis and hyperphosphatemia, presence of diabetes for acidosis, diabetic kidney disease for anemia, and both male gender and the use of inhibitors of the renin-angiotensin system for hyperkalemia. mGFR thresholds for detecting complications with 90% sensitivity were 50, 44, 40, 39, and 37 ml/min per 1.73 m(2) for hyperparathyroidism, anemia, acidosis, hyperkalemia, and hyperphosphatemia, respectively. Analysis using estimated GFR produced similar results. In summary, this study describes the onset of CKD-related complications at different levels of GFR; anemia and hyperparathyroidism occur earlier than acidosis, hyperkalemia, and hyperphosphatemia.
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PMID:Timing of onset of CKD-related metabolic complications. 1900 10

Chronic kidney disease (CKD), like other chronic diseases, is a serious public health problem because of both its high incidence and prevalence and its significant morbidity and mortality and socioeconomic cost. Advanced chronic kidney disease (ACKD) includes stages 4 and 5 of the CKD classification. It is defined as chronic kidney disease in which there is a severe reduction in glomerular filtration rate (GFR < 30 ml/min). The treatment goals are to reduce and treat the complications associated with chronic kidney failure and to prepare the patient adequately and sufficiently in advance for kidney replacement therapy. The prevalence of ACKD is 0.2-0.6% of the adult population. This prevalence increases with age and in Spain is 1.6% in persons older than 64 years. - CKD is easily detected in clinical practice with simple tests (GFR estimated by equations based on serum creatinine, albuminuria and urine sediment) (Strength of Recommendation B). - It is recommended to detect the presence of CKD in all persons older than 60 years or with hypertension, diabetes or cardiovascular disease (Strength of Recommendation B). - Early detection and appropriate referral to the nephrology of patients with ACKD improves long-term morbidity and reduces costs for both the patient and the health care system (Strength of Recommendation B). Adequate communication and coordination between the primary care and nephrology is essential for this early detection: - Referral to nephrology should be made based on the stage of CKD, age of the patient, rate of progression of kidney failure, degree of albuminuria and presence or appearance of early warning signs.All patients with CKD stages 4-5 should be referred to nephrology (Strength of Recommendation C). - A protocol should be established in each health area for joint follow-up between primary care and nephrology (Strength of Recommendation C). - The creation of multidisciplinary ACKD units including a nephrologist, nephrology nurse, dietitian and social worker allows an integrated approach to the different aspects of management of patients with ACKD and is cost-effective (Strength of Recommendation B).
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PMID:[Advanced chronic kidney disease]. 1901 31


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