Publications by authors named "Osman Serdar"

The rapid growth in the use of aluminum oxide nanoparticles (AlO NPs) in various fields such as medicine, pharmacy, cosmetics industries and engineering, and the fact that these NPs and their wastes mix with the aquatic environment and damage the aquatic ecosystem, affect the organisms in the water, enter the food chain and reach humans is a major problem is cause for concern. The aim of this study is to investigate the oxidative stress caused by two separate forms of aluminum oxide, γ-AlO and α-AlO, in Gammarus pulex, which is a good indicator species, with biochemical parameters. For this purpose, G.

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The aim of this study is to assess the toxicity of ibuprofen (IBU) and propranolol (PRO) drugs using as a model organism. Firstly, the 96 h LC values of IBU and PRO were determined and then three sublethal concentrations of the drugs were exposed to . The activities of superoxide dismutase (SOD), catalase (CAT) and acetylcholinesterase (AChE) were evaluated.

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This study reveals out detoxifying and antioxidant enzyme response of Gammarus pulex exposed/polluted to chlorpyrifos-ethyl insecticide before and after biodegradation/bioremediation by Methylobacterium radiotolerans and Microbacterium arthrosphaerae. Cytochrome P450 1A1, glutathione S-transferase, catalase, and superoxide dismutase activities in G. pulex exposed to chlorpyrifos-ethyl before and after bioremediation/biodegradation by these two bacteria during 24 and 96 h tested by using commercial ELISA kits.

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Chlorpyrifos (CPF) is an organophosphate pesticide that is frequently and widely used to control both agricultural and domestic pests worldwide. In this study, the protective effect of Fennel (Foeniculum vulgare) essential oil (FEO) was investigated in carp (Cyprinus carpio) exposed to CPF. The fish were divided into six groups that one control group (no treatment) and five experimental groups (FEO (3ml/100g diet) group, CPF (0.

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The research study was about revealing the biochemical response of Gammarus pulex related to insecticide methomyl before and after bioremediation by two soil bacteria species, Ochrobactrum thiophenivorans and Sphingomonas melonis. Catalase (CAT), glutathione S-transferase.(GST), cytochrome.

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Seasonal variations in species composition and growth dynamics of phytoplankton in Uzuncayir Dam Lake (Tunceli, Turkey) were studied in relation to ecological factors by collecting horizontal water and phytoplankton samples for over a year. A total of 46 phytoplankton taxa were recorded, where Bacillariophyta was the most abundant in species number representing 24 taxa. Diatoms were the most conspicuous phytoplankton in terms of abundance as well as occurrence frequency.

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It was assessed the efficiency of the electrocoagulation (EC) in slaughterhouse wastewater (SW) treatment by using antioxidant parameters of Gammarus pulex. The SW was treated by EC. Superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase (CAT) activities and malondialdehyde (MDA) levels in G.

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In this presented study, it was aimed to determine the effects of pesticides on non-target organisms on the freshwater amphipod, Gammarus pulex, by biochemical responses. Acute toxicity value (LC) in G. pulex of the dimethoate pesticide was determined.

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The current study was aimed to investigate the detoxifying and antioxidant enzyme response of Gammarus pulex exposed to malachite green (MG) after decolorization by Coriolus versicolor. Response surface methodology (RSM) was utilized to optimize the decolorization conditions of MG synthetic solutions by C. versicolor.

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Objective: The aim of this study was to determine the relationship between serum uric acid (UA) level and the predicted risk score for sudden cardiac death in 5 years (the HCM Risk-SCD), galectin-3 level, and positive fragmented QRS (fQRS) on electrocardiography (ECG) in patients with hypertrophic cardiomyopathy (HCM).

Methods: This was a prospective, observational study. In all, 115 consecutive patients (age >17 years) with HCM and 80 healthy participants were included in the study.

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The discharge of landfill leachate into the environment without effective treatment poses a serious threat for the aquatic ecosystems. This present study was undertaken to evaluate whether electrocoagulation process is efficient for treatment landfill leachate (LL) or not by using antioxidant biomarkers in Gammarus pulex. Glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), and catalase (CAT) activities and malondialdehyde (MDA) and glutathione (GSH) levels in G.

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Objective: The goal of this study was to develop a national database of patients hospitalized in Turkey with acute heart failure (AHF) using evaluations of diagnostic and therapeutic approaches.

Methods: Patient data were collected using an Internet-based survey. A total of 588 patients were enrolled from 36 participating medical centers across the country.

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Article Synopsis
  • The study evaluated the usefulness of coronary artery calcium score (CACS) in early detecting coronary artery disease among patients with stage II chronic obstructive pulmonary disease (COPD).
  • More than 40 stage II COPD patients were compared with 31 healthy individuals, revealing significantly higher CACS values in patients, particularly in those with risk factors like physical inactivity and a family history of heart disease.
  • The findings suggest that male COPD patients exhibiting specific risk traits, such as prolonged disease duration and low physical activity, should be closely monitored for coronary artery issues, regardless of other health conditions.
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Statins may exert pleiotropic effects in coronary artery disease (CAD), diabetes mellitus, and familial hypercholesterolemia. We evaluated the effects of statins on the neutrophil-lymphocyte ratio (NLR) and mean platelet volume (MPV) in 261 consecutive patients with hypercholesterolemia having CAD or at high cardiovascular (CV) risk and 50 healthy participants who were retrospectively included in this study. Patients were treated with 10 to 80 mg atorvastatin or 10 to 40 mg rosuvastatin for 24 weeks according to baseline levels of cholesterol, triglycerides, and CV risk.

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Background/aim: Reduced arterial elasticity is an independent predictor of cardiovascular mortality in patients with end-stage renal disease (ESRD). Hemodialysis (HD) treatment per se can bring additional risk factors for vascular disease. Our study was designed to determine whether a single hemodialysis session leads to an acute alteration in parameters of arterial elasticity in ESRD.

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Background: Tissue Doppler imaging (TDI) is a method that determines the tissue motion and velocity within the myocardium.

Aims: To characterize acute haemodialysis (HD)-induced changes in TDI-derived indices for patients that have end-stage renal disease (ESRD).

Study Design: Cross sectional study.

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Objectives: After coronary angiography and percutaneous coronary intervention (PCI), the classic sand bag method and compression devices are widely used for control of bleeding and prevention of vascular complications. The purpose of our study was to assess the major peripheral vascular complications and to compare the sand bag and a pneumatic compression device ("Close Pad") in terms of major peripheral vascular complications after coronary interventions.

Study Design: Between June 2011 and November 2011, a total of 434 patients who admitted to the Department of Cardiology of Uludag University Faculty of Medicine were included in the study.

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Coronary stent dislodgement or embolization before deployment is a rare but serious complication in interventional cardiology. A 60-year-old male presented with unstable angina five years after coronary artery bypass surgery. There was a stenosis (70%) in the obtuse marginal branch of the circumflex artery.

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A 69-year-old man was referred to our hospital with a diagnosis of non-ST elevation myocardial infarction. A selective left coronary angiography revealed a fistula connecting the left main coronary artery with the pulmonary artery in addition to severe left main coronary artery disease. The patient subsequently underwent ligation of fistulae and coronary bypass grafting.

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