scholarly journals Circulatory microRNA expression profile for coronary artery calcification in chronic kidney disease patients

2021 ◽  
Vol 21 (2) ◽  
pp. 728-734
Author(s):  
Bhooma Vijayaraghavan ◽  
Sridharan Jeyamohan ◽  
Giri Padmanabhan ◽  
Antony Joseph Velangann ◽  
Kumaresan Ramanathan

Background & Aim: Coronary artery disease (CAD) is the primary cause of mortality in patients with end stage renal disease (ESRD). MicroRNA profiling is proven as a powerful tool in the diagnosis of any disease at the molecular level. Hence, the present study aimed to profile the microRNA expression for CAD especially coronary artery calcification in CKD patients. Materials and Methods: Two hundread patients with CKD stages 3 to 5 without dialysis and healthy controls were includ- ed in this study. All two hundred patients underwent 1024 multi sliceardiac computed tomography (CT) scan for calcium scoring. The calcium scoring more than 100 have been included in the study. We performed miRNA microarray analysis from serum samples of seven high calcium scored with CKD patients and one control patients. Results: Seven patients have observed circulating miRNAs has significantly upregulated and downregulated when compared with control patients. mir21, mir 67, mir 390, mir 56, mir 250, mir 65 and mir 13 were up regulated and mir235, mir256, mir226, mir207, mir255, mir193 were downregulated. There was no significant difference in left ventricle function. Conclusion: 13 microRNAs play a potential role in coronary artery calcification in CKD patients. Keywords: CKD; CAD; microRNA; coronary artery calcification.

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Tien-Hung Huang ◽  
Cheuk-Kwan Sun ◽  
Yi-Ling Chen ◽  
Pei-Hsun Sung ◽  
Chi-Hsiang Chu ◽  
...  

Background. This study was aimed at testing the association between the therapeutic efficacy of CD34+ cell treatment in patients with end-stage diffuse coronary artery disease as reflected in angiographic grading and results of directed in vivo angiogenesis assay (DIVAA) on their isolated peripheral blood mononuclear cell- (PBMC-) derived endothelial progenitor cells (EPCs). Methods. Angiographic grades (0: <5%; 1: 5–35%; 2: 35–75%; 3: >75%) which presented the improvement of vessel density pre- and post-CD34+ treatment were given to 30 patients with end-stage diffuse coronary artery disease having received CD34+ cell treatment. The patients were categorized into low-score group (angiographic grade 0 or 1, n=12) and high-score group (angiographic grade 2 or 3, n=18). The percentages of circulating EPCs with KDR+/CD34+/CD45−, CD133+/CD34+/CD45−, and CD34+ were determined in each patient using flow cytometry. PBMC-derived EPCs from all patients were subjected to DIVAA through a 14-day implantation in nude mice. The DIVAA ratio (i.e., mean fluorescent units in angioreactors with EPCs/mean fluorescent units in angioreactors without EPCs) was obtained for each animal with implanted EPCs from each patient. Results and Conclusions. The number of EPCs showed no significant difference among the two groups. The DIVAA ratio in the high-score group was significantly higher than that in the low-score group (p=0.0178). Logistic regression revealed a significant association between the DIVAA ratio and angiographic grading (OR 3.12, 95% CI: 1.14–8.55, p=0.027). The area under the ROC curve (AUC) was 0.8519 (p=0.0013). We proposed that DIVAA may be a reliable tool for assessing coronary vascularization after CD34+ cell treatment.


Circulation ◽  
2018 ◽  
Vol 137 (suppl_1) ◽  
Author(s):  
Alexander V Sergeev

Background: Studies have demonstrated that chronic kidney disease (CKD), especially its last stage - end-stage renal disease (ESRD) - is not only an independent risk factor for coronary artery disease (CAD), but it also worsens survival prognosis in CAD patients. It remains unclear whether racial disparities affect the outcomes of coronary revascularization procedures - coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI) - in CAD patients with ESRD (CAD-ESRD). Study Objectives: (1) to investigate comparative effectiveness of CABG and PCI on in-hospital mortality outcomes in CAD-ESRD patients and (2) to investigate racial disparities in the utilization and in-hospital mortality outcomes of CABG and PCI in CAD-ESRD patients. Methods: We conducted a retrospective cohort study of in-hospital mortality in 23,519 CAD-ESRD patients [mean + SD age: 65.4 + 11.6 years; 62.2% (14,626 of 23,519) males] after CABG and PCI during 2007-2011. Patient race was defined as white, black, Asian, or Native American. In-hospital patient death was a binary outcome of interest. Adjusted odds ratios were obtained from multivariable logistic regression (MLR), adjusted for known clinical, demographic, and socio-economic covariates. Results: In the covariate-adjusted MLR analysis, post-PCI in-hospital mortality in CAD-ESRD patients was significantly lower than post-CABG mortality (adjusted OR = 0.47, 95% CI: 0.41-0.53, p<0.001). Post-procedure mortality was associated with emergency room (ER) admission (adjusted OR 1.62, 95% CI: 1.44-1.83, p<0.001), older age (3.2% increase for each year, 95% CI: 2.6-3.8%, p<0.001), and higher severity of co-existing conditions other than ESRD measured by the Elixhauser Comorbidity Index (8.5% increase for each point increase in the modified Elixhauser-Walraven score, 95% CI: 7.5-9.5%, p<0.001). Blacks were more likely to undergo an ER admission (48.4%) than Asians (46.0%), Native Americans (43.2%) or whites (42.4%, p<0.05, with multiple comparison correction). In the adjusted MLR analysis, race was not a statistically significant independent predictor of post-procedure mortality. C-statistic for the MLR was 0.729. Conclusions: Our results suggest that in-hospital post-PCI mortality in CAD-ESRD patients is lower than post-CABG mortality. Racial disparities in ER admissions - a demonstrated predictor of post-procedure mortality in these patients - may reflect the underlying racial disparities in access to and utilization of primary care. Further studies investigating disparities in CAD-ESRD mortality are warranted.


2018 ◽  
Vol 17 (2) ◽  
pp. 290-295
Author(s):  
Premtim Rashiti ◽  
Ibrahim Behluli ◽  
Albiona Bytyçi

Objective: By enrolling a prospective study of 82 patients that underwent non-urgent coronary angiography for coronary artery disease (CAD), it is aimed to investigate the correlation between adiponectin and waist-hip-ratio with severity of CAD.Materials and methods: The results of the angiography, divided the patients into two groups, patients admitted with a diagnosis of CAD and non-CAD. In the conducted hospital based research, two groups were involved: the study group with documented angiographically CAD and control group without angiographic evidence of CAD. Some of the baseline adiponectin levels in stored serum samples of all patients, anthropometric and biochemical risk factors were assessed in both groups.Result and discussion: As the result, we have seen the presence of CAD that was associated with current smoking, male gender, waist–hip ratio (WHR).While, no significant difference between median adiponectin levels at baseline were observed between cases and controls.Conclusion: There is a significant positive correlation between waist - hip ratio and presence of severity of coronary artery disease.Bangladesh Journal of Medical Science Vol.17(2) 2018 p.290-295


2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Ahmed Alayoud ◽  
Azizi Mounia ◽  
Jabrane Marouan ◽  
Mohammed Arrayhani

Abstract Background Although progression of coronary artery calcification (CAC) has been established as an important marker for cardiovascular morbidity, very few studies have studied it in end-stage renal disease patients. Thus we examined and evaluate risk factors of calcification changes in dialysis patients. Method Among 28 hemodialysis (HD) patients, CAC was measured in Agatston units at baseline and after five years using the 64 multi-slice ultra-fast CT. The HD patients were classified as progressors or no progressors according to the change in the CAC score across these 2 measurements. Results Over an average 63 months follow-up, participants without CAC at baseline had no incident CAC .The progression of CAC was slow and was found only in 6 patients (21.4%) . It was significantly associated with several cardiovascular risk factors, namely, older age (p=0.03), diabetes (p=0.05), male sex (p=0.02), hypercholesterolemia (p = 0.05), anemia (p=0.017), inflammation (p=0.05), and hyperphosphataemia (p=0.012) . However, calcemia, parathormone levels, dialysis duration, tobacco, high blood pressure and dialysis dose did not seem to influence the progression of CAC in our series. A strong association was found between basal calcification scores and Delta increment at 5 years. Conclusions Our study suggests that CAC progression in dialysis is a complex phenomenon, associated with several risk factors with special regard to elevated basal scores. This progression can be avoided or slowed with appropriate management which must begin in the early stages of chronic kidney disease


2000 ◽  
Vol 342 (20) ◽  
pp. 1478-1483 ◽  
Author(s):  
William G. Goodman ◽  
Jonathan Goldin ◽  
Beatriz D. Kuizon ◽  
Chun Yoon ◽  
Barbara Gales ◽  
...  

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