scholarly journals Tryptophan levels associate with incident cardiovascular disease in chronic kidney disease

Author(s):  
Vetalise C Konje ◽  
Thekkelnaycke M Rajendiran ◽  
Keith Bellovich ◽  
Crystal A Gadegbeku ◽  
Debbie S Gipson ◽  
...  

Abstract Background Non-traditional risk factors like inflammation and oxidative stress play an essential role in the increased cardiovascular disease (CVD) risk prevalent in chronic kidney disease (CKD). Tryptophan catabolism by the kynurenine pathway (KP) is linked to systemic inflammation and CVD in the general and dialysis population. However, the relationship of KP to incident CVD in the CKD population is unknown. Methods We measured tryptophan metabolites using targeted mass spectrometry in 92 patients with a history of CVD (old CVD); 46 patients with no history of CVD and new CVD during follow-up (no CVD); and 46 patients with no CVD history who developed CVD in the median follow-up period of 2 years (incident CVD). Results The three groups are well-matched in age, gender, race, diabetes status and CKD stage, and only differed in total cholesterol and proteinuria. Tryptophan and kynurenine levels significantly decreased in patients with ‘Incident CVD’ compared with the no CVD or old CVD groups (P = 5.2E–7; P = 0.003 respectively). Kynurenic acid, 3-hydroxykynurenine and kynurenine are all increased with worsening CKD stage (P < 0.05). An increase in tryptophan levels at baseline was associated with 0.32-fold lower odds of incident CVD (P = 0.000014) compared with the no CVD group even after adjustment for classic CVD risk factors. Addition of tryptophan and kynurenine levels to the receiver operating curve constructed from discriminant analysis predicting incident CVD using baseline clinical variables increased the area under the curve from 0.76 to 0.82 (P = 0.04). Conclusions In summary, our study demonstrates that low tryptophan levels are associated with incident CVD in CKD.

Circulation ◽  
2017 ◽  
Vol 135 (suppl_1) ◽  
Author(s):  
Joshua D Bundy ◽  
Lawrence J Appel ◽  
Matthew Budoff ◽  
Jing Chen ◽  
Alan S Go ◽  
...  

Introduction: Coronary artery calcification (CAC) is prevalent among patients with chronic kidney disease (CKD) and predicts the risk of cardiovascular disease (CVD). Risk factors for the progression of CAC in patients with CKD have not been well studied. Hypothesis: We assessed the hypothesis that several established and novel CVD risk factors are associated with progression of CAC among patients with CKD. Methods: In a random subsample of 1,123 participants from the Chronic Renal Insufficiency Cohort (CRIC) Study, CAC was measured at baseline and the follow-up visit using electron beam computed tomography (CT) or multidetector CT. CAC progression was defined as an increase of Agatston score ≥100 units during follow-up. Multiple logistic regression and mixed-effects regression models were used to assess risk factors for progression of CAC. Results: Over an average of 3-year follow-up, 332 (29.6%) participants developed CAC progression. After adjusting for age, sex, race, clinical site, total cholesterol, HDL-cholesterol, systolic blood pressure, antihypertensive treatment, diabetes, and current smoking in the multivariable models, history of CVD (odds ratio [OR] 1.53, 95% CI 1.09-2.15, p=0.02), lipid-lowering treatment (OR 1.81, 95% CI 1.28-2.55, p<0.001), higher serum phosphate (OR 1.37, 95% CI 1.17-1.61, p<0.001), hemoglobin A1c (OR 1.32, 95% CI 1.10-1.58, p=0.002), and cystatin C (OR 1.24, 95% CI 1.06-1.45, p=0.007), and lower estimated-glomerular filtration rate (eGFR) (OR 1.32, 95% CI 1.10-1.56, p=0.002) were associated with CAC progression. In addition, lower physical activity, lipid-lowering treatment, body-mass index, LDL-cholesterol, lower serum calcium, phosphate, total parathyroid hormone, fibrinogen, interleukin-6, tumor necrosis factor-α, fibroblast growth factor-23, lower eGFR, cystatin C, and 24-hour urine albumin were associated with square root transformed change in CAC score from baseline in multiple-adjusted models. These findings persisted after additional adjustment for baseline CAC score. Conclusions: In conclusion, these data suggest that reduced kidney function, calcium and phosphate metabolic disorders and inflammation, in addition to established CVD risk factors, might play a role in CAC progression among patients with CKD.


Life ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 315
Author(s):  
Carlo Maria Barbagallo ◽  
Angelo Baldassare Cefalù ◽  
Antonina Giammanco ◽  
Davide Noto ◽  
Rosalia Caldarella ◽  
...  

Chronic kidney disease (CKD) is one of the most important risk factors for cardiovascular disease (CVD). Despite the kidney having no direct implications for lipoproteins metabolism, advanced CKD dyslipidemia is usually present in patients with CKD, and the frequent lipid and lipoprotein alterations occurring in these patients play a role of primary importance in the development of CVD. Although hypertriglyceridemia is the main disorder, a number of lipoprotein abnormalities occur in these patients. Different enzymes pathways and proteins involved in lipoprotein metabolism are impaired in CKD. In addition, treatment of uremia may modify the expression of lipoprotein pattern as well as determine acute changes. In renal transplantation recipients, the main lipid alteration is hypercholesterolemia, while hypertriglyceridemia is less pronounced. In this review we have analyzed lipid and lipoprotein disturbances in CKD and also their relationship with progression of renal disease. Hypolipidemic treatments may also change the natural history of CVD in CKD patients and may represent important strategies in the management of CKD patients.


2020 ◽  
Vol 8 (1) ◽  
pp. 23-26
Author(s):  
Rojina Bakhunchhen ◽  
Raju Kumar Dubey ◽  
Archana Jayan ◽  
Santosh Kumar Shah ◽  
Prabin Khatri

INTRODUCTION: Most of the chronic kidney disease (CKD) patients develop cardiovascular disease (CVD) in their later stages. Various traditional CVD risk factors are highly prevalent in CKD but mortality of these patients cannot be fully justified by these CVD markers. So this study was designed to determine serum calcium and phosphorus product (Ca×Pi) to predict CVD risk in CKD patients. MATERIAL AND METHODS We followed the guidelines of NKF-KDOQI for CKD diagnosis and staging. Further the patients were classified into 3 different groups based on Ca×Pi product; <40 mg2/dl2 (group 1), 40-55 mg2/dl2 (group 2) and >55 mg2/dl2 (group 3). We then evaluated CVD risk by various traditional risk factors like age, BMI, BP, smoking history, dyslipidemia, previous history of CVD, LVH, arrhythmia, VHD, cardiomyopathy, and IHD. RESULTS: Higher level of Ca×Pi was associated with presence of LVH (32.30% in group 1, 31.42% in group 2 and 46.66% in group 3), Arrythemia (13.84% in group 1, 28.57% in group 2 and 46.67% in group 3), VHD (5.71% in group 2 and 10.00% in group 3), Cardiomyopathy (1.53% in group 1, 8.57% I group 2 and 6.66% in group 3), IHD (6.15% in group1, 11.42% in group 2 and 13.33% in group 3) and hypercholesterolemia, hypertriglyceridemia and increased LDLc. CONCLUSION: This study found that higher Ca×Pi increases with decline in glomerular filtration rate (GFR) and associated with CVD risks and CVD. So, this study raise a potential need to evaluate the level of calcium and phosphorus in all CKD patients and the level should be monitored more thoroughly to prevent CVD.


BMJ Open ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. e047774
Author(s):  
Qiuxia Zhang ◽  
Jingyi Zhang ◽  
Li Lei ◽  
Hongbin Liang ◽  
Yun Li ◽  
...  

AimsTo develop a nomogram for incident chronic kidney disease (CKD) risk evaluation among community residents with high cardiovascular disease (CVD) risk.MethodsIn this retrospective cohort study, 5730 non-CKD residents with high CVD risk participating the National Basic Public Health Service between January 2015 and December 2020 in Guangzhou were included. Endpoint was incident CKD defined as an estimated glomerular filtration rate (eGFR) less than 60 mL/min/1.73 m2 during the follow-up period. The entire cohorts were randomly (2:1) assigned to a development cohort and a validation cohort. Predictors of incident CKD were selected by multivariable Cox regression and stepwise approach. A nomogram based on these predictors was developed and evaluated with concordance index (C-index) and area under curve (AUC).ResultsDuring the median follow-up period of 4.22 years, the incidence of CKD was 19.09% (n=1094) in the entire cohort, 19.03% (727 patients) in the development cohort and 19.21% (367 patients) in the validation cohort. Age, body mass index, eGFR 60–89 mL/min/1.73 m2, diabetes and hypertension were selected as predictors. The nomogram demonstrated a good discriminative power with C-index of 0.778 and 0.785 in the development and validation cohort. The 3-year, 4-year and 5-year AUCs were 0.817, 0.814 and 0.834 in the development cohort, and 0.830, 0.847 and 0.839 in the validation cohort.ConclusionOur nomogram based on five readily available predictors is a reliable tool to identify high-CVD risk patients at risk of incident CKD. This prediction model may help improving the healthcare strategies in primary care.


2018 ◽  
Vol 35 (5) ◽  
pp. 827-836 ◽  
Author(s):  
Cédric Villain ◽  
Marie Metzger ◽  
Christian Combe ◽  
Denis Fouque ◽  
Luc Frimat ◽  
...  

Abstract Background Although chronic kidney disease (CKD) and age are major risk factors for cardiovascular disease (CVD), little is known about the relative proportions of atheromatous and non-atheromatous CVD by age in CKD patients. Methods We used baseline data from the French Chronic Kidney Disease-Renal Epidemiology and Information Network (CKD-REIN) cohort of 3033 patients (65% men) with CKD Stages 3–4 to study crude and adjusted associations between age, the estimated glomerular filtration rate (eGFR), atheromatous CVD (coronary artery disease, peripheral artery disease and stroke) and non-atheromatous CVD (heart failure, cardiac arrhythmia and valvular heart disease). Results Mean age was 66.8 and mean Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) eGFR was 32.9 mL/min/1.73 m2. In the &lt;65, (65–74), (75–84) and ≥85 year age groups, the prevalence was, respectively, 18.7, 35.5, 42.9 and 37.8% for atheromatous CVD, and 14.9, 28.4, 38.1 and 56.4% for non-atheromatous CVD. After adjusting for albuminuria, sex and CVD risk factors, the odds ratio (OR) [95% confidence interval (CI)] for (65–74), (75–84) and ≥85 age groups (compared with the &lt;65 group) was, respectively, 1.99 (1.61–2.46), 2.89 (2.30–3.62), 2.72 (1.77–4.18) for atheromatous CVD and 2.07 (1.66–2.58), 3.15 (2.50–3.97), 7.04 (4.67–10.61) for non-atheromatous CVD. Compared with patients with an eGFR ≥30 mL/min/1.73 m2, those with an eGFR &lt;30 mL/min/1.73 m2 had a higher OR for atheromatous CVD [1.21 (1.01–1.44)] and non-atheromatous CVD [1.16 (0.97–1.38)]. Conclusions In this large cohort of CKD patients, both atheromatous and non-atheromatous CVD were highly prevalent and more frequent in older patients. In a given age group, the prevalence of atheromatous and non-atheromatous CVD was similar (except for a greater prevalence of non-atheromatous CVD after 85).


2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Wen-Jun Zhang ◽  
Zi-Yi Wang ◽  
Wei-Xing Zhou ◽  
Ning-Qiang Yang ◽  
Ya Wang ◽  
...  

Abstract Background We aimed to examine the risk factors for chronic kidney disease (CKD) stage 3 among adults with ASK from unilateral nephrectomy. Methods We retrospectively collected data from adult patients with ASK between January, 2009 and January, 2019, identified from a tertiary hospital in China. The clinical data were compared between patients who developed CKD stage 3 and those who did not develop CKD stage 3 during follow-up. Results In total, 172 patients with ASK (110 men; median 58.0 years) were enrolled, with a median follow-up duration of 5.0 years. During follow-up, 91 (52.9%) and 24 (14.0%) patients developed CKD stage 3 and end-stage renal disease, respectively. Multiple regression analyses showed that age (odds ratio [OR] 1.076, 95% confidence interval [CI] 1.039–1.115, p < 0.001), diabetes (OR 4.401, 95% CI 1.693–11.44, p = 0.002), hyperuricemia (OR 2.733, 95% CI 1.104–6.764, p = 0.03), a history of cardiovascular disease (CVD) (OR 5.583, 95% CI 1.884–18.068, p = 0.002), and ASK due to renal tuberculosis (OR 8.816, 95% CI 2.92–26.62, p < 0.001) were independent risk factors for developing CKD stage 3 among patients with ASK. Conclusions Regular follow-up of renal function is needed among adult patients with ASK. Optimal management of diabetes, hyperuricemia, and CVD may reduce their risk of CKD stage 3, especially among those that undergo unilateral nephrectomy for renal tuberculosis.


2015 ◽  
Vol 25 (4) ◽  
pp. 515 ◽  
Author(s):  
Keith C. Norris ◽  
Susanne B Nicholas

<p>Patients with chronic kidney disease (CKD) suffer from an increased prevalence of cardiovascular disease (CVD) risk factors, and a high rate of premature CV morbidity and mortality. The confluence of CV risk factors, in the context of cardio-metabolic perturbations that vary as renal function declines, complicates strategies for the care of patients with CKD. Understanding the ex­isting evidence for effective CVD treatment strategies can help providers better care for these patients, navigate the complex treat­ment guidelines, which often differ across major organizations, and minimize the con­flicting recommendations that new studies may pose. A pragmatic approach is to target a BP &lt;140/90 mm Hg, which frequently requires more than two or three antihyper­tensive agents. Most guidelines recommend a combination of diuretic and angiotensin converting enzyme inhibitor or angiotensin receptor blockers, along with a dihydropyri­dine calcium channel blocker, beta blocker or other agent based on co-existing medical conditions. Consideration for a lower BP goal and/or other therapeutic interventions should be based on the etiology of CKD, stage of CKD, and/or presence of protein­uria. Finally, most patients with CKD, not on dialysis, would benefit from treatment with statins and non-pharmacologic lifestyle interventions should be promoted for all pa­tients with CKD. <em>Ethn Dis. </em>2015;25(4):515- 520; doi:10.18865/ed.25.4.515</p>


2018 ◽  
Vol 25 (4) ◽  
pp. 377-387 ◽  
Author(s):  
Michel Komajda ◽  
Mathieu Kerneis ◽  
Luigi Tavazzi ◽  
Serban Balanescu ◽  
Francesco Cosentino ◽  
...  

Aim Chronic ischaemic cardiovascular disease (CICD) remains a leading cause of morbidity and mortality worldwide. The CICD Pilot Registry enrolled 2420 patients across 10 European Society of Cardiology countries prospectively to describe characteristics, management strategies and clinical outcomes in this setting. We report here the six-month outcomes. Methods and results From the overall population, 2203 patients were analysed at six months. Fifty-eight patients (2.6%) died after inclusion; 522 patients (23.7%) experienced all-cause hospitalisation or death. The rate of prescription of angiotensin-converting enzyme inhibitors, beta-blockers and aspirin was mildly decreased at six months (all P < 0.02). Patients who experienced all-cause hospitalisation or death were older, more often had a history of non-ST-segment elevation myocardial infarction, of chronic kidney disease, peripheral revascularisation and/or chronic obstructive pulmonary disease than those without events. Independent predictors of all-cause mortality/hospitalisation were age (hazard ratio (HR) 1.17, 95% confidence interval (CI) 1.07–1.27) per 10 years, and a history of previous peripheral revascularisation (HR 1.45, 95% CI 1.03–2.03), chronic kidney disease (HR 1.31, 95% CI 1.0–1.68) or chronic obstructive pulmonary disease (HR 1.42, 95% CI 1.06–1.91, all P < 0.05). We observed a higher rate of events in eastern, western and northern countries compared to southern countries and in cohort 1. Conclusion In this contemporary European registry of CICD patients, the rate of severe clinical outcomes at six months was high and was influenced by age, heart rate and comorbidities. The medical management of this condition remains suboptimal, emphasising the need for larger registries with long-term follow-up. Ad-hoc programmes aimed at implementing guidelines adherence and follow-up procedures are necessary, in order to improve quality of care and patient outcomes.


Author(s):  
Mahmoud Al−Rifai ◽  
Michael J. Blaha ◽  
Vijay Nambi ◽  
Steven J.C. Shea ◽  
Erin D. Michos ◽  
...  

Background : The 2018 American Heart Association/ American College of Cardiology Multisociety (AHA/ACC/MS) cholesterol guideline states that statin therapy may be withheld or delayed among intermediate risk individuals in the absence of coronary artery calcium (CAC=0). We evaluated whether traditional cardiovascular risk factors are associated with incident atherosclerotic cardiovascular disease (ASCVD) events among individuals with CAC=0 over long−term follow−up. Methods : We included participants with CAC=0 at baseline from the Multi-Ethnic Study of Atherosclerosis (MESA), a prospective cohort study of individuals free of clinical ASCVD at baseline. We used multivariable-adjusted Cox proportional hazards models to study the association between cardiovascular risk factors [cigarette smoking, diabetes mellitus, hypertension, preventive medication use (aspirin and statin), family history of premature ASCVD, chronic kidney disease, waist circumference, lipid and inflammatory markers] and adjudicated incident ASCVD outcomes. Results : We studied 3,416 individuals (mean (SD) age 58 (9) years; 63% were female, 33% White, 31% Black, 12% Chinese-American, and 24% Hispanic. Over a median follow-up of 16 years, there were 189 ASCVD events (composite of CHD and stroke) of which 91 were CHD, 88 were stroke, and 10 were both CHD and stroke events. The unadjusted event rates of ASCVD were ≤5 per 1000−person−years among individuals with CAC=0 for most risk factors with the exception of current cigarette smoking (7.3), diabetes mellitus (8.9), hypertension (5.4), and chronic kidney disease (6.8). After multivariable-adjustment, risk factors that were significantly associated with ASCVD: hazard ratio (HR) 95% confidence interval (CI) included current cigarette smoking: 2.12 (1.32,3.42), diabetes mellitus: 1.68 (1.01,2.80), and hypertension: 1.57 (1.06,2.33). Conclusions : Current cigarette smoking, diabetes mellitus, and hypertension are independently associated with incident ASCVD over 16-year follow-up among those with CAC=0. Family history of premature ASCVD may be associated with ASCVD risk among women only.


Sign in / Sign up

Export Citation Format

Share Document