Publications by authors named "Bulent Demir"

Background: Adolescent pregnancy is defined as pregnancy occurring in young women between the ages of 10 and 19 years. Adolescent pregnancies, which are among the social healthcare concerns in developed and developing countries, have negative effects on maternal and infant health. Pregnancy in adolescence puts the health of both the mother and child at risk, as adolescent pregnancies have higher rates of eclampsia, systemic infection, low birth weight, and preterm delivery compared to other pregnancies.

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Background: Hashimoto thyroiditis (HT) is one of the most prevalent autoimmune diseases. The intestine microbiota is strongly associated with autoimmune diseases. Zonulin, a modulator of tight junctions that controls the selective permeability of the intestine can induce an elevation in gut permeability.

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Background: Significant portion of trauma-related deaths occur in the 1st h; therefore, rapid diagnosis and adequate resuscita-tion in trauma patients are essential preventing mortality. In this study, we aimed to evaluate the role of lactate-to-hematocrite ratio (LHR) score for predicting mortality in patients with severe thoracoabdominal trauma.

Methods: In this retrospective, cross-sectional study, we evaluated patients who applied to the emergency room between January 1, 2016, and December 31, 2019, due to multiple trauma.

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Background: It has been shown that interleukin-35 (IL-35) subunits are strongly expressed in atherosclerotic plaques in humans. Therefore, it is considered to play a role in atherosclerosis.

Objectives: In this study, IL-35 levels were compared with the control group in patients with stable coronary artery disease (CAD), and the association between IL-35 levels and the lesion type, lesion severity and extension was investigated with the Gensini score (GS) and the Syntax score (SS) in the patient group.

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Background: We aimed to compare the level of hepatic FIB-4 scores between COVID-19 patients who had pneumonia and COVID-19 patients who had no pneumonia in an attempt to develop a risk assessment after the treatment and recovery of active COVID-19 infection.

Methods: The study included 80 patients who were consecutively selected and admitted to an internal medicine outpatient clinic for a control examination after COVID-19 infection. Chest tomography was performed on all patients during the COVID-19 infection.

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Objective: Although the underlying mechanism is not yet fully understood, Cardiac Syndrome X (CSX) is defined as microvascular dysfunction. Prolidase plays a role in collagen synthesis. Increased serum prolidase activity (SPA) has been shown to correlate with collagen turnover.

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Objective: In most of primary ovarian insufficiency (POI) cases, etiologic factors have not been fully elucidated. Recent studies have revealed that inflammatory agents play an important role in the etiopathogenesis of POI. Therefore, the aim of this study was to investigate the role of inflammatory markers of hemogram parameters in POI.

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Objective: To study pitavastatin's effects on nuclear factor-kappa B (NF-B ) and adhesion molecules in human saphenous vein graft endothelial culture indicating its pleotropic properties.

Materials And Method: Low-dose (0.1 M/L) and high-dose (1M/L) pitavastatin calcium were administered as a frontline therapy in human saphenous endothelial cell culture, followed by induction of inflammation by TNF- and determination of mRNA level alterations of ICAM-1 and NF-B genes of endothelial cells using the qRT-PCR method.

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Background And Objective: Coronary bypass operations are commonly performed for the treatment of ischemic heart diseases. Coronary artery bypass surgery with autologous human saphenous vein maintains its importance as a commonly used therapy for advanced atherosclerosis. Vascular inflammation-related intimal hyperplasia and atherosclerotic progress have major roles in the pathogenesis of saphenous vein graft disease.

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Background: Both the extracellular matrix molecule tenascin-C (Tn-C) and tissue inhibitors of metalloproteinases (TIMPs) have a role in tissue injury, inflammation, and remodeling. In this pilot study, we tried to evaluate the role of these markers in acute kidney injury (AKI).

Methods: A total of 52 subjects were enrolled in this study.

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Endothelial and microvascular dysfunction serve important roles in the formation and pathogenesis of cardiac syndrome X (CSX). Expression of receptor for advanced glycation end products (RAGE) is suggested to be increased in several conditions, including diabetes, inflammation and vascular diseases. In the present study, gene polymorphisms in patients with CSX and healthy controls were investigated.

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In this study, it was aimed to investigate the relationship between the epicardial adipose tissue thickness (EATT) and serum IL-17A level insulin resistance in metabolic syndrome patients. This study enrolled a total of 160 subjects, of whom 80 were consecutive patients who applied to our outpatient clinic and were diagnosed with metabolic syndrome, and the other 80 were consecutive patients who were part of the control group with similar age and demographics in whom the metabolic syndrome was excluded. The metabolic syndrome diagnosis was made according to International Diabetes Federation (IDF)-2005 criteria.

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We aimed to compare the levels of plasma zonulin, a non-invasive biomarker of increased intestinal permeability, between pregnant subjects, with and without gestational diabetes mellitus (GDM), at 24⁻28 gestational weeks. The eighty-five consecutive pregnant subjects that presented to our hospital's obstetrics outpatient clinic and were diagnosed with GDM, for the first time by an oral glucose tolerance test (OGTT), formed the GDM group; 90 consecutive subjects that were not diagnosed with GDM by OGTT, formed the control group. The diagnosis of GDM was made by an OGTT performed between the 24th and 28th weeks of gestation, and in compliance with the American Diabetes Association (ADA) criteria.

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The aim of this study was to evaluate serum interleukin (IL)-17A levels in patients with coronary artery ectasia (CAE), the relationship between IL and 17A and CAE, and to determine the relationship between the severity of coronary ectasia and the level of IL-17A. In total, 41 patients (19 female and 22 male) with ischemic symptoms whose non-invasive cardiac tests were positive for myocardial ischemia, and in whom coronary artery ectasia were detected after coronary angiography, and 45 patients (32 female and 13 male) with normal coronary arteries were included in this study. Echocardiographic assessments were performed.

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Background: Definition of Cardiac Syndrome X (CSX) refers to groups of patients with positive exercise stress test and normal epicardial coronary arteries on coronary angiography accompanied by chest pain. Although the etiology of CSX is not completely understood, there is a common consensus that its pathophysiology may be associated with endothelial dysfunction resulting in impaired coronary flow. Some polymorphisms observed on the MTHFR gene cause inactivation of the MTHFR enzyme, leading to hyperhomocysteinemia and homocysteinuria, which are prominent risk factors of cardiovascular and cerebrovascular diseases.

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Objective: To determine the differences between the factors such as return of spontaneous circulation positivity, duration of cardiopulmonary resuscitation, and cardiac rhythm at first arrival affecting neurological outcomes in cardiac-arrest cases.

Methods: This study was conducted at the Malatya State Hospital, Malatya, Turkey, from January to December 2014, and comprised patients who had received cardiopulmonary resuscitation. Patients were divided into two groups; in-hospital cardiac arrest and out-of-hospital cardiac arrest.

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Background: Preeclampsia (PE) is a multisystemic disorder characterized by hypertension and proteinuria that is specific to pregnancy and associated with maternal and fetal morbidity-mortality.

Aim: To assess right heart structure and function in PE by echocardiography using conventional and tissue Doppler techniques.

Methods: In total, 67 women with untreated PE and 46 matched healthy pregnant women were included.

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Perforator flaps are very popular in the reconstruction of soft tissue defects. As these flaps generally depend on a single perforator, drugs that increase the perfusion of the flap and/or prevent vascular complications may increase flap survival. In this study, we compared the effects of systemically administered hydralazine (arterial vasodilator via potassium channels), nifedipine (arterial vasodilator via calcium channels), piracetam (antiplatelet and regulator of microcirculation) and alprostadil (vasodilator, antiplatelet, rheological and cytoprotective) on flap survival in a rat epigastric artery perforator flap model.

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Coronary artery ectasia (CAE) is associated with coronary artery disease (CAD). The underlying pathophysiology of CAE is not fully understood. α-antitrypsin (A1AT) plays a role in the tissue protease system, and AAT-1 deficiency (A1ATD) has been shown to be related to CAD.

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Purpose: The aim of this study is to evaluate the correlation between epicardial adipose tissue thickness and oxidative stress parameters in patients with polycystic ovarian syndrome.

Methods: The study included 35 patients with PCOS and 35 healthy women. Transthoracic echocardiography was used to measure the epicardial adipose tissue thickness (EATT) of all patients.

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We compared Turkish patients with cardiac syndrome X (CSX) and controls with respect to serum pro- and anti-inflammatory cytokine levels, as well as the single-nucleotide polymorphisms located in the promoter regions of their related genes. This study included 111 consecutive patients angiographically diagnosed with CSX and 111 healthy controls with similar demographic characteristics. Serum interleukin (IL) 6, tumor necrosis factor α (TNF-α), and IL-10 levels were measured, and the genotypes of the patients and controls were determined using standard methods.

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Background: The aim of this study was to evaluate the serum soluble CD40 ligand (sCD40L) levels, serum uroten- sin II levels, and serum leptin levels as an indirect indicator of endothelial dysfunction, inflammation, and atherosclerosis at the microvascular level, and the comparison of those values with those of the control group with a nor- mal coronary flow pattern.

Methods: The study included 35 consecutive patients (17 women, 18 men; average age: 51.20 ± 10.

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The risk for cardiovascular diseases and type 2 diabetes mellitus significantly increases in the patient population with metabolic syndrome (MeS). The present study aimed to investigate the association between the epicardial adipose tissue thickness (EATT) and the oxidative stress parameters in MeS patients. The study included 181 patients as a patient group of 92 consecutive patients with MeS and a control group of 89 consecutive patients with similar age and gender.

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