35 research outputs found

    Glutathione S Transferases M1 and T1 Genetic Variants are Associated with Coronary Artery Ectasia

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    29th Turkish Cardiology Congress of the Turkish-Society-of-Cardiology (TSC) with International Participation -- OCT 26-29, 2013 -- Antalya, TURKEYWOS: 000329858400026…Turkish Soc Cardio

    Evaluation of the Apolipoprotein B R3500Q Gene Mutation in Nonvalvular Atrial Fibrillation with Ischemic Stroke in Turkish Population

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    29th Turkish Cardiology Congress of the Turkish-Society-of-Cardiology (TSC) with International Participation -- OCT 26-29, 2013 -- Antalya, TURKEYWOS: 000329858400355…Turkish Soc Cardio

    Plasma lipoprotein(a) levels in patients with slow coronary flow

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    WOS: 000327688400001PubMed ID: 24570746Introduction: Slow coronary flow (SCF) is a microvascular disorder characterized by delayed opacification of coronary vessels with normal coronary angiogram. It may be due to endothelial dysfunction and diffuse atherosclerosis. Lipoprotein(a) [Lp(a)] is related to cardiovascular events. Plasma Lp(a) levels have not been studied previously in SCF patients. Aim: We investigated plasma Lp(a) and fibrinogen levels, and their relation to coronary flow rate in patients with SCE Material and methods: This cross-sectional study included 50 patients with SCF and 30 age- and sex-matched controls who had normal coronary arteries and normal flow. Coronary flow rates of patients and controls were counted with the thrombolysis in myocardial infarction (TIMI) frame count. Plasma Lp(a) and fibrinogen levels were measured in SCF patients and controls, with routine biochemical tests. Results: There were no significant differences between the two groups with respect to plasma Lp(a) (21 mg/dl vs. 14 mg/dl, p = 0.11) and fibrinogen (278 mg/dl vs. 291 mg/dl, p = 0.48) levels. The TIMI frame count was not correlated with plasma Lp(a) (r = 0.13, p = 0.25) or fibrinogen (r = -0.14, p = 0.28) levels. Conclusions: Our results show that there is no significant association between SCF and Lp(a) and fibrinogen levels

    Hemodiyaliz ve periton diyalizi hastalarında tp-e/qt, ve tp-e/qtc oranı

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    Narman, Serkan (Aksaray, Yazar)OBJECTIVE: Sudden cardiac death and risk of arrhythmia are higher in patients with ESRD. Tp-e/ QT, and Tp-e/QTc are novel and more reliable indexes of ventricular arrhythmogenesis and sudden cardiac death than QTc. The aim of this study was to assess ventricular repolarization in patients with hemodialysis and peritoneal dialysis by using the Tp-e interval, Tp-e/QT ratio, and Tp-e/QTc ratio. MATERIAL and METHODS: A total of 35 healthy controls, 92 hemodialysis patients, and 104 peritoneal dialysis patients were enrolled in the study. The Tp-e interval, Tp-e/QT, and Tp-e/QTc ratio were calculated from the ECGs of the individuals and compared among groups. RESULTS: QT value was significantly higher in hemodialysis group compared with peritoneal dialysis group (p<0.001) and control group (p<0.001). However a difference was not found comparing QT values between peritoneal dialysis and control groups. Tp-e, Tp-e/QTc, Tp-e/QT, and QTc values were significantly higher in hemodialysis and peritoneal dialysis group comparing to control group. However a statistically significant difference was not found while comparing QTc values between peritoneal dialysis and control groups (p:0.081). When all patients of ESRD without DM were compared with the control group, Tp-e, Tp-e/QTc, Tp-e/QT, and QTc values were found significantly higher than the healthy control group. The values of Tp-e/QT (p<0.001 r:0.314) and Tp-e/QTc (p:0.018 r:0,187) in all patients with kidney disease were found to show positive correlation with duration of dialysis (month). CONCLUSION: This is the first known study that shows Tp-e/Q, and Tp-e/QTc are higher in hemodialysis and peritoneal dialysis patients.AMAÇ: Ani kardiyak ölüm ve aritmi riski son dönem böbrek yetmezliği hastalarında yüksektir. Tp-e/ QT, ve Tp-e/QTc’ nin ventriküler aritmogenezisi ve ani kardiyak ölümü göstermede QTc’ den daha değerli olduğu gösterilmiştir. Çalışmada amacımız hemodiyaliz ve periton diyalizi hastalarında Tp-e intervali, Tp-e/QT ve Tp-e/QTc oranını kullanarak ventriküler repolarizasyonu değerlendirmektir. GEREÇ ve YÖNTEMLER: 35 sağlıklı kontrol, 92 hemodiyaliz hastası, ve 104 periton diyalizi hastası çalışmaya dahil edildi. Bütün hastaların elektrokardiyografileri çekildi. Tp-e interval, Tp-e/QT ve Tp-e/ QTc oranı elektrokardiyografiden elde edilen verilerle hesaplandı ve gruplar arasında karşılaştırıldı. BULGULAR: QT hemodiyaliz hastalarında periton diyalizi hastalarına (p<0,001) ve sağlıklı kontrollere (p<0,001) göre yüksek saptandı. Ancak QT periton diyalizi hastalarında sağlıklı kontrollere göre anlamlı fark saptanmadı. QTc, Tp-e, Tp-e/QT, ve Tp-e/QTc hemodiyaliz ve periton diyalizi hastalarında sağlıklı kontrollere göre anlamlı yüksek tespit edildi. Bununla birlikte periton diyalizi ve kontrol grupları arasında QTc değerleri arasında farklılık tespit edilmedi (p:0,081). Diyabetik olmayan bütün son dönem böbrek yetmezliği hastaları sağlıklı kontrollerle karşılaştırıldığında QTc, Tp-e, Tp-e/ QT, ve Tp-e/QTc sağlıklı kontrollere göre anlamlı yüksek tespit edildi. Tp-e/QT (p<0,001 r:0,314) ve Tp-e/QTc (p:0,018 r:0,187) arasında ortalama diyaliz süresi (ay) ile pozitifkorelasyon saptandı. SONUÇ: Çalışma Tp-e/QT, ve Tp-e/QTc’ nin hemodiyaliz ve periton diyalizi hastalarında sağlıklı kontrollere göre yüksek olduğunu gösteren ilk araştırmadı

    Furan and benzochalcogenodiazole based multichromic polymers via a donor-acceptor approach

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    Two new furan and benzochalcogenodiazole based monomers, namely 4,7-di(furan-2-yl) benzo[c][1,2,5]-selenadiazole (FSeF) and 4,7-di(furan-2-yl) benzo[c][1,2,5]thiadiazole (FSF), were designed and synthesized via a donor-acceptor-donor approach. The monomers were electrochemically polymerized via potentiodynamic or potentiostatic methods. The monomers and their polymers exhibited lower oxidation potentials (1.16 V and 1.06 V for monomers; 0.93 V and 0.80 V for polymers vs. Ag/AgCl) and red shifts of the whole dual-band absorption spectra upon moving from S to Se. Intramolecular charge transfer properties of the monomers and the polymers were demonstrated by using electroanalytical and optical methods. Also, the polymers PFSeF and PFSF were multicolored at different redox states and have low band gaps of 1.43 eV and 1.61 eV, respectively
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