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Kronik Böbrek Yetmezliği Hastalarında Koroner Arter Hastalığı Ciddiyeti ile “Asymmetrical Dimethylarginine” Arasındaki İlişki

Association Between Asymmetric Dimethylarginine and the Severity of Coronary Artery Disease in Patients with Chronic Kidney Disease

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DOI: 
DOI 10.5262/tndt.2011.1001.10
Abstract (2. Language): 
ObjectI ve: Cardiovascular diseases are the most common cause of death in patients with endstage renal disease. Asymmetrical dimethylarginine (ADMA) is increased in conditions associated with increased risk of atherosclerosis. We aimed to examine the association between severity of coronary stenosis and the ADMA levels in a group of chronic kidney disease (CKD) stage 1 to 3. MA TERIAL and Metho ds: Eighty-eight (88) consecutive patients with decreased renal function (glomerular filtration rate (GFR) between 90 and 30 ml/min), undergoing cardiac catheterization for proven or clinically suspected coronary artery disease were enrolled at the study. Serum levels of creatinine, ADMA, nitric oxide (NO), calcium, phosphate, total cholesterol, HDL and LDL fractions, triglycerides were determined using measurement techniques. The Gensini scoring system was used for the detection of the severity of coronary atherosclerosis. Res ults : The mean serum values were 81.48 ± 13.8 micromol/l for ADMA and 3.7 ± 1.7 mmol/L for NO. The mean Gensini score in the study group was 30.4 ± 40.1. All patients were classified into tertiles of Gensini score level. Patients in the highest tertile had statistically significantly lower GFR values. The ADMA values increased statistically significantly in the third tertile compared with the first tertile. The Gensini score values significantly correlated in univariate analysis with the GFR, ADMA and presence of hypertension. In a multivariate regression model, ADMA was the only statistically significant independent predictor of Gensini score. ConclusIo n: ADMA appears to be one of the strongest risk markers for atherosclerosis in patients with mild and moderate CKD.
Abstract (Original Language): 
Amaç: Son dönem böbrek yetmezliği hastalarında en genel ölüm sebebi kardiyovasküler hastalıklardır. Asymmetrical dimethylarginine (ADMA) aterosklerozis riskinin artması ile ilişkili durumlarda artmaktadır. Bu çalışmada amaç, kronik böbrek yetmezliği evre 1-3 grubunda, koroner arter darlığı ciddiyeti ile ADMA düzeyleri arasındaki ilişkiyi saptamaktır. GEREÇ ve YÖN TEML ER: Böbrek işlevleri azalmış, klinik koroner arter hastalığı kuşkusu veya kanıtlanmış koroner arter hastalığı ile koroner anjiyografi yapılan 88 hasta çalışmaya alındı. Serum kreatinin, ADMA, nitrik oksit (NO), kalsiyum, fosfat, total kolesterol, HDL, LDL fraksiyonları ve trigliserid düzeyleri ölçüldü. Koroner aterosklerozis ciddiyetini belirlemek için Gensini skorlama sistemi kullanıldı. Bulgular: Ortalama serum düzeyleri ADMA için 81.48±13.8 micromol/l, NO için 3.7±1.7 milimol/L ölçüldü. Bu çalışmada ortalama Gensini skoru olarak 30.4±40.1. saptandı. Tüm hastalar Gensini skoruna göre üç gruba ayrıldı. En yüksek gruptaki hastaların glomerüler filtrasyon hızı (GFR) düzeyleri istatiksel olarak anlamlı derecede düşük saptandı. İlk grupla karşılaştırıldığında üçüncü grupta ADMA düzeyleri anlamlı olarak yüksekti. Tek değişkenli analizde Gensini skoru değerlerinin, ADMA düzeyleri, GFR ve hipertansiyon mevcudiyeti ile uyumlu olduğu saptandı. Çok değişkenli regresyon modelinde, yalnızca ADMA düzeyi Gensini skoru için bağımsız bir belirleyici etken olduğu saptandı. Sonuç: Hafif-orta dereceli kronik böbrek yetmezliği hastalarında, ADMA düzeyleri ateroskleroz için güçlü bir belirteç olarak görülmektedir.
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