Incident CKD Research Articles

Coincidence of HCV and chronic kidney disease-a systematic review and meta-analysis

BackgroundThere are reported studies of Hepatitis C and chronic kidney disease association. However, how this liver virus infection affects the general population’s susceptibility to the onset of the kidney disease is still unknown.MethodsTo determine if a positive anti-HCV serologic status is linked to a greater incidence of chronic kidney disease in the general adult population, a systematic evaluation of the published medical literature since 2015 was conducted. A summary estimate of the relative risk of chronic kidney disease with HCV was produced using a random-effects model. Moreover, stratified analysis and meta-regression were performed.ResultsTwelve studies (n = 605858 patients) were filtered and included. Meta-analyses were conducted according to the outcome. Pooling results of longitudinal studies (n = 06 studies, n = 347120 unique patients) demonstrated an association between positive anti-HCV serologic status and increased incidence of CKD. The summary estimate for adjusted hazard ratio was 1.21 with (95% confidence interval 1.13; 1.29, P = 0.001), and between studies heterogeneity was noted (P value by Q test < 0.001). In the subset of Asian surveys, the risk of the occurrence of chronic kidney disease linked to HCV was 1.70 (95% confidence interval 1.40; 2.00) without heterogeneity (P value by Q test = 0.6).ConclusionsWe found a strong correlation between HCV infection and a higher risk of chronic renal disease in general global population.

Ambient Air Pollutant Mixture, Sleep Pattern, and Incident CKD: Results from a Prospective Cohort Study

Ambient Air Pollutant Mixture, Sleep Pattern, and Incident CKD: Results from a Prospective Cohort Study

Incident CKD among Canadian Immigrants: A Population-Based Cohort Study

Incident CKD among Canadian Immigrants: A Population-Based Cohort Study

Circulating Very Long-Chain Saturated Fatty Acids and Incident CKD: A Meta-Analysis of Prospective Cohort Studies

Circulating Very Long-Chain Saturated Fatty Acids and Incident CKD: A Meta-Analysis of Prospective Cohort Studies

Association of Water Intake with Incident CKD in the UK Biobank Study

Association of Water Intake with Incident CKD in the UK Biobank Study

Mitochondrial DNA Copy Number Is Associated with Incident AKI, CKD, and Inflammatory Biomarkers

Mitochondrial DNA Copy Number Is Associated with Incident AKI, CKD, and Inflammatory Biomarkers

Kidney Volume and Risk of Incident CKD

Kidney Volume and Risk of Incident CKD

Metabolic Risk Factors, Genetic Risk Score, and Risk of Incident CKD

Metabolic Risk Factors, Genetic Risk Score, and Risk of Incident CKD

Association between Alcohol Consumption and the Risk of Incident CKD in Community-Dwelling Older Adults

Association between Alcohol Consumption and the Risk of Incident CKD in Community-Dwelling Older Adults

Habitual Iron Supplementation Associated with Elevated Risk of Chronic Kidney Disease in Individuals with Antihypertensive Medication.

The aim of this study was to examine the effects of habitual iron supplementation on the risk of CKD in individuals with different hypertensive statuses and antihypertension treatment statuses. We included a total of 427,939 participants in the UK Biobank study, who were free of CKD and with complete data on blood pressure at baseline. Cox proportional hazards regression models were used to examine the adjusted hazard ratios of habitual iron supplementation for CKD risk. After multivariable adjustment, habitual iron supplementation was found to be associated with a significantly higher risk of incident CKD in hypertensive participants (HR 1.12, 95% CI 1.02 to 1.22), particularly in those using antihypertensive medication (HR 1.21, 95% CI 1.08 to 1.35). In contrast, there was no significant association either in normotensive participants (HR 1.06, 95% CI 0.94 to 1.20) or in hypertensive participants without antihypertensive medication (HR 1.02, 95% CI 0.90 to 1.17). Consistently, significant multiplicative and additive interactions were observed between habitual iron supplementation and antihypertensive medication on the risk of incident CKD (p all interaction < 0.05). In conclusion, habitual iron supplementation was related to a higher risk of incident CKD among hypertensive patients, the association might be driven by the use of antihypertensive medication.

The Gut Microbial Metabolite Trimethylamine N -oxide, Incident CKD, and Kidney Function Decline.

Trimethylamine N-oxide (TMAO) is a gut microbiota-derived metabolite of dietary phosphatidylcholine and carnitine. Experimentally, TMAO causes kidney injury and tubulointerstitial fibrosis. Little is known about prospective associations between TMAO and kidney outcomes, especially incident CKD. We hypothesized that higher plasma TMAO levels would be associated with higher risk of incident CKD and greater rate of kidney function decline. We included 10,564 participants from two community-based, prospective cohorts with estimated glomerular filtration rate (eGFR) ≥ 60 mL/min/1.73m2 to assess incident CKD. TMAO was measured using targeted mass spectrometry at baseline and one follow-up visit. Creatinine and Cystatin C were measured up to 4 times during follow-up and used to compute eGFR. Incident CKD was defined as an eGFR decline ≥ 30% from baseline and a resulting eGFR<60 ml/min/1.73 m2. Time-varying Cox models assessed the association of serial TMAO measures with incident CKD, adjusting for sociodemographic, lifestyle, diet, and cardiovascular disease risk factors. Linear mixed models assessed the association with annualized eGFR change in 10,009 participants with at least one follow-up eGFR measure without exclusions for baseline eGFR levels. During a median follow-up of 9.4 years (interquartile range: 9.1-11.6 years), 979 incident CKD events occurred. Higher TMAO levels associated with higher risk of incident CKD (2nd to 5th vs. 1st quintile HR[95%CI]= 1.65 [1.22-2.23], 1.68 [1.26-2.25], 2.28 [1.72-3.02], and 2.24[1.68-2.98], respectively) and greater annualized eGFR decline ( 2nd to 5th vs. 1st quintile annualized eGFR change= -0.21 [-0.32, -0.09], -0.17 [-0.29, -0.05], -0.35 [-0.47, -0.22], and -0.43[-0.56, -0.30], respectively) with monotonic dose-response relationships. These associations were consistent across different racial/ethnic groups examined. The association with eGFR decline was similar to or larger than that seen for established CKD risk factors including diabetes, per 10 mmHg of higher systolic blood pressure, per 10 years of older age, and Black race. In community-based US adults, higher serial measures of plasma TMAO were associated with higher risk of incident CKD and greater annualized kidney function decline.

Endothelial Dysfunction Biomarkers and CKD Incidence in the REGARDS Cohort

IntroductionChronic kidney disease (CKD) is only partly caused by traditional risk factors. Endothelial dysfunction is common in CKD and may contribute to CKD incidence. We studied the association of circulating biomarkers reflecting endothelial dysfunction with incident CKD. MethodsREGARDS is a prospective cohort of 30,239 Black or White adults aged ≥45 years. Baseline levels of ICAM-1, VCAM-1, factor VIII, and E-selectin were measured in 3,300 participants without baseline CKD or albuminuria who attended a second visit 9.4 years later. Kidney outcomes were incident CKD (eGFR <60 mL/min/1.73m2 and ≥40% decline or onset of new end stage kidney disease), incident ≥30% eGFR decline, and incident albuminuria (albumin-to-creatinine ratio (ACR) ≥30 mg/g). Sequentially adjusted logistic regression models assessed the association of biomarkers with kidney outcomes. ResultsMedian age of participants was 62, 49% were women, and 46% identified as Black. 228 (6.9%) developed CKD, 613 (18.9%) experienced ≥30% decline in eGFR, and 356 (11.4%) developed albuminuria. The adjusted odds ratios for incident CKD per 1 standard deviation increment biomarker was 1.12 for ICAM-1 (95% CI 1.02-1.22), 1.10 for VCAM-1 (95% CI 1.01-1.20), 1.15 for factor VIII (95% CI 1.06-1.24), and 1.10 for E-selectin (95% CI 1.01-1.20). Results were similar for incident ≥30% eGFR decline but not albuminuria, where only higher factor VIII was positively associated. ConclusionsHigher concentration of ICAM-1, VCAM-1, factor VIII, and E-selectin were associated with incident CKD and ≥30% eGFR decline in a large cohort study. Higher factor VIII was also associated with incident albuminuria.

Proneurotensin/Neuromedin N and Risk of Incident CKD and Other Kidney Outcomes in Community-Living Individuals: The REGARDS Study

Proneurotensin/Neuromedin N and Risk of Incident CKD and Other Kidney Outcomes in Community-Living Individuals: The REGARDS Study

Smoking status, cadmium, and chronic kidney disease

Abstract Background Chronic kidney disease (CKD) affects 10% of the general population in Western countries. Currently, CKD cannot be cured and there are only few strategies to prevent the onset of CKD, to reverse early stages of CKD, and to prevent the progression of established CKD to end-stage kidney disease. Cigarette smoking is a preventable cause of CKD. Methods This narrative review analyses the cause–effect relationship between cigarette smoking and CKD and discusses the association of inhaled cadmium and smoking-induced kidney damage. Results Cigarette smoking places individuals at risk for incident CKD. It accelerates the progression (decline in glomerular filtration rate, aggravation of proteinuria) of CKD to end-stage kidney disease (ESKD), and is associated with shortened kidney transplant graft survival. These harmful effects on kidney function/structure are dependent on the dose and duration of cigarette smoking. Smoking abstinence decreases the higher risk for proteinuria and CKD progression. Inhaled cadmium may be the biologic link between cigarette smoking and kidney dysfunction. Recent studies indicate that accumulation of cadmium in the blood mediates progression of CKD and places smokers at higher risk for all-cause mortality. Conclusions Smoking cessation is an effective intervention to reduce the risk of onset and progression of CKD as well as to reduce smoking-attributable morbidity and mortality.

Radiation Exposure and Contrast Agent Use during Endovascular Aortic Repair Using Mobile Versus Fixed Angiography Systems.

For (thoracic) endovascular aortic repair ((T)EVAR) procedures, both mobile (standard operating room (SOR)) and fixed C-arm (hybrid operating room (HOR)) systems are available. This study evaluated differences in key procedural parameters, and procedural success for (T)EVAR in the SOR versus the HOR. All patients who underwent standard elective (T)EVAR at the Clinic for Vascular and Endovascular Surgery at the University Hospital Duesseldorf, Germany, between 1 January 2012 and 1 January 2019 were included. Data were retrieved from archived medical records. Endpoints were analyzed for SOR versus HOR during (T)EVAR. A total of 93 patients, including 50 EVAR (SOR (n = 20); HOR (n = 30)) and 43 TEVAR (SOR (n = 22); HOR (n= 21)) were included. The dose area product (DAP) for EVAR and TEVAR was lower in the SOR than in the HOR (EVAR, SOR: 1635 ± 1088 cGy·cm2; EVAR, HOR: 7819 ± 8928 cGy·cm2; TEVAR, SOR: 8963 ± 34,458 cGy·cm2; TEVAR, HOR: 14,591 ± 11,584 cGy·cm2 (p < 0.05)). Procedural fluoroscopy time was shorter in the SOR than in the HOR for EVAR and TEVAR (EVAR, SOR: 7 ± 4 min; EVAR, HOR: 18.8 ± 11.3 min; TEVAR, SOR: 6.6 ± 9.6 min; TEVAR, HOR: 13.9 ± 11.8 min (p < 0.05)). Higher volumes of contrast agent were applied during EVAR and TEVAR in the SOR than in the HOR (EVAR, SOR: 57.5 ± 20 mL; EVAR: HOR: 33.3 ± 5 mL (p < 0.05); TEVAR; SOR: 71.5 ± 53.4 mL, TEVAR, HOR: 48.2 ± 27.5 mL (p ≥ 0.05). The use of a fixed C-arm angiography system in the HOR results in higher radiation exposure and longer fluoroscopy times but lower contrast agent volumes when compared with mobile C-arm systems in the SOR. Because stochastic radiation sequelae are more likely to be tolerated in an older patient population and, in addition, there is a higher incidence of CKD in this patient population, allocation of patients to the HOR for standard (T)EVAR seems particularly advisable based on our results.

Association between systemic immune inflammation Index and all-cause mortality in incident peritoneal dialysis-treated CKD patients: a multi-center retrospective cohort study

BackgroundChronic inflammatory disorders in peritoneal dialysis (PD) contribute to the adverse clinical outcome. Systemic immune inflammation index (SII) is the novel and convenient measurement that is positively associated with various diseases. However, scarce is known regarding the association between SII with all-cause mortality among PD patients.MethodsIn this multi-center retrospective cohort study, 1,677 incident patients with PD were enrolled. Eligible patients were stratified into groups based on SII level: tertile 1(< 456.76), tertile 2(456.76 to 819.03), and tertile 3(> 819.03). The primary endpoint was the all-cause mortality. Both Cox regression analysis and competing risk models were used to examine the association between SII and all-cause mortality. Subgroup analysis was performed to assess the influence of the SII tertiles on all-cause mortality in different subgroups.ResultsDuring the follow-up period of 30.5 ± 20.0 months, 26.0% (437/1,677) patients died, of whom the SII tertile 3 group accounted for 39.1% (171/437) of the deaths. Patients in the SII tertile 3 group had a higher all-cause mortality rate than patients in the SII tertile 1 and 2 groups (log-rank = 13.037, P < 0.001). The SII tertile 3 group was significantly associated with 80% greater risk (95% confidence interval:1.13 to 2.85; P = 0.013) compared with the SII tertile 1 group in multivariable Cox regression analysis. The competing risk model also indicated that the relationship between SII tertiles and all-cause mortality remains (subdistribution hazard ratio: 1.86; 95% confidence interval: 1.15 to 2.02, P = 0.011). Furthermore, the relationship between the log-transformed SII and all-cause mortality in patients with PD was nearly linear (P = 0.124).ConclusionA close relationship was observed between the SII and all-cause mortality in patients undergoing PD, suggesting that more attention should be paid to the SII, which is a convenient and effective measurement in clinical practice.

Comprehensive assessment of the combined impact of dyslipidemia and inflammation on chronic kidney disease development: A prospective cohort study

There remains a limited comprehensive understanding of how dyslipidemia and chronic inflammation collectively contribute to the development of CKD. We aimed to identify clusters of individuals with five variables, including lipid profiles and C-reactive protein (CRP) levels, and to assess whether the clusters were associated with incident CKD risk. We used the Korean Genome and Epidemiology Study-Ansan and Ansung data. K-means clustering analysis was performed to identify distinct clusters based on total cholesterol, triglyceride, non-high-density lipoprotein (HDL)-C, HDL-C, and CRP levels. Cox proportional hazards models were used to examine the association between incident CKD risk and the different clusters. During the mean 10-year follow-up period, CKD developed in 1,645 participants (690 men and 955 women) among a total of 8,053 participants with a mean age of 51.8 years. Four distinct clusters were identified: C1, low cholesterol group (LC); C2, high HDL-C group (HC); C3, insulin resistance and inflammation group (IIC); and C4, dyslipidemia and inflammation group (DIC). Cluster 4 had a significantly higher risk of incident CKD compared to clusters 2 (HR 1.455 [95% CI 1.234-1.715]; p < 0.001) and cluster 1 (HR 1.264 [95% CI 1.067-1.498]; p = 0.007) after adjusting for confounders. Cluster 3 had a significantly higher risk of incident CKD compared to cluster 2 and 1. Clusters 4 and 3 had higher risk of incident CKD compared to clusters 2 and 1. The combination of dyslipidemia with inflammation or insulin resistance with inflammation appears to be pivotal in the development of incident CKD.

Association of Gender, Age, Physiological, and Biochemical Parameters among Chronic Renal Failure Patients at Zawia Kidney Hospital

Background and objectives. Chronic renal failure is a major problem and one of the main causes of morbidity and mortality in the world. kidneys maintain internal balance of water, salts and minerals by eliminating waste products from the body. This study conducted to evaluate the association of physiological and biochemical changes among patients with renal failure who undergo dialysis compared to healthy people. Also, to identify the incidence of CKD in males and females. Methods. This study was conducted from January 2020 to December 2020 at Zawia Kidney Hospital. It was including 114 patients with chronic renal failure and 75 healthy people. The biochemical variables which were examined in the blood serum include glucose, triglycerides and cholesterol, urea, creatinine, and electrolytes in patients with renal failure as well as the healthy people. Results. This study showed that patients aged over 31year had higher frequency of kidney failure. There was a statistically significant difference in the glucose levels between the patient’s group and the control group (p &lt; 0.001) with patients having higher average glucose levels compared to the control group. There were no statistically significant differences between the two groups in cholesterol levels (p˂0.904). However, there was a statistically significant difference in triglyceride levels between patients and controls (p-value =0.021) as patients having higher levels compared to the control group. Statistically significant differences observed in urea, creatinine, calcium, sodium, potassium and phosphate values among renal failure and control groups as (p˂0.001 for each). In the relationship between blood type patients and kidney disease, the results showed a significant association between blood type and kidney failure (p&lt;0.001). Also, our study revealed that there is a significant correlation between gender and chronic renal failure (p&lt;0.001). In addition, an odds ratio of 11.7 indicates that the odds of men developing kidney failure are 11.7 times higher than that of women. Conclusion. Older ages, male, and O blood group are risk factors for chronic renal failure. Clear difference in the level of biochemical parameters in chronic renal failure compared to healthy people.

Exploration of Metabolomic Markers Associated With Declining Kidney Function in People With Type 2 Diabetes Mellitus.

Metabolomics, the study of small molecules in biological systems, can provide valuable insights into kidney dysfunction in people with type 2 diabetes mellitus (T2DM), but prospective studies are scarce. We investigated the association between metabolites and kidney function decline in people with T2DM. The Edinburgh Type 2 Diabetes Study, a population-based cohort of 1066 men and women aged 60 to 75 years with T2DM. We measured 149 serum metabolites at baseline and investigated individual associations with baseline estimated glomerular filtration rate (eGFR), incident chronic kidney disease [CKD; eGFR <60 mL/min/(1.73 m)2], and decliner status (5% eGFR decline per year). At baseline, mean eGFR was 77.5 mL/min/(1.73 m)2 (n = 1058), and 216 individuals had evidence of CKD. Of those without CKD, 155 developed CKD over a median 7-year follow-up. Eighty-eight metabolites were significantly associated with baseline eGFR (β range -4.08 to 3.92; PFDR < 0.001). Very low density lipoproteins, triglycerides, amino acids (AAs), glycoprotein acetyls, and fatty acids showed inverse associations, while cholesterol and phospholipids in high-density lipoproteins exhibited positive associations. AA isoleucine, apolipoprotein A1, and total cholines were not only associated with baseline kidney measures (PFDR < 0.05) but also showed stable, nominally significant association with incident CKD and decline. Our study revealed widespread changes within the metabolomic profile of CKD, particularly in lipoproteins and their lipid compounds. We identified a smaller number of individual metabolites that are specifically associated with kidney function decline. Replication studies are needed to confirm the longitudinal findings and explore if metabolic signals at baseline can predict kidney decline.

Comparison of METS-IR and HOMA-IR for predicting new-onset CKD in middle-aged and older adults

BackgroundChronic kidney disease (CKD) has emerged as a mounting public health issue worldwide; therefore, prompt identification and prevention are imperative in mitigating CKD-associated complications and mortality rate. We aimed to compare the predictive powers of the homeostatic model assessment for insulin resistance (HOMA-IR) and the metabolic score for insulin resistance (METS-IR) for CKD incidence in middle-aged and older adults.MethodsThis study used longitudinal prospective cohort data from the Korean Genome and Epidemiology Study. A total of 10,030 participants, aged 40–69 years, residing in the Ansung or Ansan regions of the Republic of Korea, were recruited between 2001 and 2002 through a two-stage cluster sampling method. We compared the predictive powers of METS-IR and HOMA-IR for CKD prevalence and incidence, respectively. CKD prevalence was measured by the area under the receiver operating characteristic (ROC) curve (AUC), and the indices’ predictive performance for CKD incidence were assessed using Harrell’s concordance index and time-dependent ROC curve analysis.ResultsA total of 9261 adults aged 40–69 years at baseline and 8243 adults without CKD were included in this study. The AUCs and 95% confidence intervals (CIs) of HOMA-IR and METS-IR for CKD prevalence at baseline were 0.577 (0.537–0.618) and 0.599 (0.560–0.637), respectively, with no significant difference (p = 0.337). The Heagerty’s integrated AUC for METS-IR in predicting CKD incidence was 0.772 (95% CI 0.750–0.799), which was significantly higher than that of HOMA-IR (0.767 [95% CI 0.742–0.791], p = 0.015).ConclusionMETS-IR surpassed HOMA-IR in predicting CKD incidence and was as effective as HOMA-IR in predicting CKD prevalence. This implies that METS-IR could be a valuable indicator for early detection and prevention of CKD among Korean adults.