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KOÇ, MEHMET

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Author: AŞICIOĞLU, EBRU × Subject: ATHEROSCLEROSIS ×

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    Waist circumference is associated with carotid intima media thickness in peritoneal dialysis patients
    (SPRINGER, 2013) VELİOĞLU, ARZU; Asicioglu, Ebru; Kahveci, Arzu; Arikan, Hakki; Koc, Mehmet; Tuglular, Serhan; Ozener, Cetin Ishak
    Atherosclerosis is responsible for the high mortality rate in end-stage renal disease patients. Defining risk factors for atherosclerosis may lead to reduction in cardiovascular disease through modification of these factors. Peritoneal dialysis (PD) patients are subjected to high glucose loads on a daily basis, which results in considerable weight gain and an increase in waist circumference (WC). WC as an indicator of abdominal obesity is a risk factor for atherosclerosis in the general population. Carotid artery intima media thickness (CIMT) measurement is a reliable method for the detection of early atherosclerosis. The aim of this study was to investigate the relationship between WC and CIMT and to define risk factors associated with CIMT in PD patients. Fifty-five PD patients and 40 healthy controls were included. Atherosclerosis was assessed using measurement of CIMT. Fasting blood was collected for analysis. Anthropometric parameters (age, weight, BMI, and WC) were measured. Peritoneal dialysis patients had higher WC (93.9 +/- A 1.7 vs. 87.3 +/- A 1.2 cm, p < 0.05) and CIMT (0.70 +/- A 0.02 vs. 0.57 +/- A 0.01 mm, p < 0.01) than the control group. On univariate analysis, age, WC, plaque formation, and D/P creatinine were positively correlated with CIMT, whereas residual renal function, albumin, ultrafiltration volume, and D/D0 glucose were negatively correlated. On multivariate analysis, only age, WC, and plaque formation showed correlation (p < 0.001). Carotid artery intima media thickness is associated with age, plaque formation, and WC in PD patients. WC measurement is a simple, inexpensive, reproducible, and reliable method of evaluating atherosclerosis risk in PD patients and should be assessed at every visit. Appropriate counsel should be provided to patients with greater WC who are deemed to be at risk for atherosclerosis.
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    Fibroblast Growth Factor-23 Levels Are Associated With Uric Acid But Not Carotid Intima Media Thickness in Renal Transplant Recipients
    (ELSEVIER SCIENCE INC, 2014) VELİOĞLU, ARZU; Asicioglu, E.; Kahveci, A.; Arikan, H.; Koc, M.; Tuglular, S.; Ozener, C.
    Introduction. Cardiovascular disease (CVD) is the leading cause of mortality in chronic kidney disease (CKD) patients. Fibroblast growth factor-23 (FGF-23) is associated with atherosclerosis and cardiovascular mortality in CKD patients and healthy subjects. However, data in renal transplant recipients (RTR) are scarce. We aimed to determine factors associated with FGF-23 and to explore its relationship to atherosclerosis. Methods. Forty-six patients and 44 controls were included. FGF-23 was measured from plasma. Carotid intima media thickness (CIMT) was evaluated ultrasonographically. Results. Patients had higher waist circumference (WC; 92.2 +/- 14.9 vs 85.3 +/- 11.0 cm; P < .05), glucose (99.8 +/- 17.2 vs 90.3 +/- 6.5 mg/dL; P < .01), creatinine (1.43 +/- 0.6 vs 0.86 +/- 0.1 mg/dL; P < .01), triglyceride (160.4 +/- 58.9 vs 135.6 +/- 59.8 mg/dL; P < .05), white blood cells (WBC; 7938.6 +/- 2105.2 vs 6715.7 +/- 1807.5 WBC/mm(3); P < .01), ferritin (217.0 +/- 255.8 vs 108.3 +/- 142.4 ng/mL; P < .05), uric acid (6.5 +/- 1.6 vs 4.7 +/- 1.3 mg/dL; P < .01), C-reactive protein (CRP; 8.2 +/- 18.2 vs 5.3 +/- 7.9 mg/L; P < .01), parathyroid hormone (PTH; 89.7 +/- 59.2 vs 44.1 +/- 16.7 pg/mL; P < .01), and alkaline phosphatase (ALP; 162.5 +/- 86.6 vs 74.2 +/- 21.9 U/L; P < .01). FGF-23 was higher in patients (11.7 +/- 7.2 vs 9.6 +/- 6.8 pg/mL; P < .05). CIMT was similar (0.58 +/- 0.09 vs 0.57 +/- 0.1 mm; P > .05). WC, creatinine, and uric acid were positively correlated with FGF-23, whereas albumin showed negative correlation. On multivariate analysis only creatinine and uric acid were determinants of FGF-23. Conclusion. FGF-23 levels are associated with uric acid in RTR. Larger studies are needed to confirm this finding.