Arzu Altunçekiç Yıldırım

ORCID: 0000-0003-1141-9838
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Research Areas
  • Hepatitis C virus research
  • Hepatitis B Virus Studies
  • Liver Disease Diagnosis and Treatment
  • Hepatitis Viruses Studies and Epidemiology
  • Antibiotic Resistance in Bacteria
  • Antibiotic Use and Resistance
  • Antibiotics Pharmacokinetics and Efficacy
  • Cell Adhesion Molecules Research
  • Dental Research and COVID-19
  • Vector-borne infectious diseases
  • Malaria Research and Control
  • Bacterial biofilms and quorum sensing
  • Brucella: diagnosis, epidemiology, treatment
  • Bacterial Identification and Susceptibility Testing
  • Public Administration and Governance
  • Virology and Viral Diseases
  • Rabies epidemiology and control
  • Nosocomial Infections in ICU
  • Pneumonia and Respiratory Infections
  • Dermatological and COVID-19 studies
  • Vector-Borne Animal Diseases
  • Turkish Urban and Social Issues
  • Enterobacteriaceae and Cronobacter Research
  • Salmonella and Campylobacter epidemiology
  • Diverse Scientific Research Studies

Ordu University
2015-2025

Şırnak University
2021-2023

Giresun University
2023

Hitit Üniversitesi Çorum Eğitim ve Araştırma Hastanesi
2017

Ondokuz Mayıs University
2009-2012

Bayburt State Hospital
2011

Gazi University
2008

It is known that inflammatory responses play an important role in the pathophysiology of COVID-19.In this study, we aimed to examine kynurenine (KYN) metabolism on severity COVID-19 disease AQ5.Seventy patients varying and 30 controls were included study. In addition classical laboratory parameters, KYN, tryptophan (TRP), kynurenic acid (KYNA), 3 hydroxykynurenine (3OHKYN), quinolinic (QA), picolinic (PA) measured with mass spectrometry.TRP, KYN:TRP ratio, KYNA, 3OHKYN, PA, QA results found...

10.1002/jcla.24257 article EN cc-by-nc-nd Journal of Clinical Laboratory Analysis 2022-01-29
Emel Azak Ahmet Sertçelik Gülden Ersöz Güven Çelebi Fatma Eser and 89 more Ayşe Batırel Yasemin Çağ Zeynep Türe Derya Öztürk-Engin Meltem Arzu Yetkin Sedat Kaygusuz Aslıhan Candevir Ermira Tartari Jordi Rello Emine Alp Ali Seydi ALPAY Arzu Altunçekiç Yıldırım Aslı Vatan Aysun Yahşi Ayşe Kaya Kalem Ayşe Sağmak Tartar Ayşegül Tuna Banu Karaca Belgin Coşkun Burcu Gonulal Canan Demir Davut İpek Dilsat Tepe Duru Mıstanoglu Ozatag Edanur Sezer Emine Sehmen Emine Ünal Evren Emsal Aydın Ertuğrul Güçlü Esma Eren Esmeray Mutlu Yılmaz Fatma Yılmaz Karadağ Ferhan Kerget Filiz Bayar Gamze Kalın Ünüvar Gülden Eser Karlıdağ Gülfem Akengin Öcal Gülnur Kul Güneş Şenol Gürdal Yılmaz Haluk Erdoğan Handan Alay Hande Arslan Hasip Kahraman Hatun Öztürk Çerik Hülya Çaşkurlu İlknur Erdem İlknur Esen Yıldız Kıvanç Şerefhanoğlu Kübra DEMİR ÖNDER Lütfiye Nilsun Altunal Mehmet Çelik Mehmet Reşat Ceylan Merve Sefa Sayar Metehan Özen Muharrem Guler Mustafa Uğuz Mustafa Yı́ldı́rı́m Esra Koçoğlu Müge Ayhan Müge Toygar Deniz Nagehan Didem Sarı Nazan Tuna Nevin İnce Ozlem Bayrak Öznur Ak Ramazan Gozukuçuk Recep Balık Salih Atakan Nemli Selda Aslan S. Sahin Semiha Solak Grassie Serpil Ünlü Sevil Alkan Sibel Altunışık Toplu Suna Secil Ozturk Deniz Süheyla Kömür Süleyman Koç Saban Incecik Tuba Yalçın Tuna Demırdal Türkan Tüzün Verda Tuna Yasemin Çakır Yasemin Ersozlu Yeşim Aybar Bilir Yeşim Uygun Kızmaz Yıldız Olçar Zerrin Yuluğkural

Abstract Background The core components (CCs) of infection prevention and control (IPC) from World Health Organization (WHO) are crucial for the safety quality health care. Our objective was to examine level implementation WHO (IPC CC) in a developing country. We also aimed evaluate care-associated infections (HAIs) antimicrobial resistance (AMR) intensive care units (ICUs) association with implemented IPC CCs. Methods Members Turkish Infectious Diseases Clinical Microbiology Specialization...

10.1186/s13756-023-01208-0 article EN cc-by Antimicrobial Resistance and Infection Control 2023-02-13

The characteristics, diagnosis, and treatment stages of malaria in Turkey the last ten years are not known except few case reports. We aimed to describe details diagnosis practices cases various hospitals across between 2012 2023 after declaration elimination malaria. collected patient data from 30 centers by using Qualtrics Survey Software. patients were categorized according WHO Malaria Severe Disease Symptoms guidelines. detected 299 cases. Of these patients, 23.7 % experienced...

10.1016/j.tmaid.2025.102819 article EN cc-by-nc-nd Travel Medicine and Infectious Disease 2025-02-21

Aim. The use of erythrocyte sedimentation rate (ESR) in coronavirus disease 2019 (COVID-19) to determine severity and prognosis is limited. This study aimed interrogate the diagnostic prognostic role ESR compared other acute-phase reactants. Method. retrospective cross-sectional included 493 confirmed hospitalized adult COVID-19 patients. Pneumonia, radiological severity, oxygen, intensive care requirements, mortality, ESR, reactant values were recorded. Logistic regression ROC analysis...

10.1155/2022/6510952 article EN cc-by Canadian Journal of Infectious Diseases and Medical Microbiology 2022-08-11

Chronic lymphocytic leukemia (CLL) is a common hematological neoplasm in adults with an abnormal increase monoclonal B lymphocytes.Ibrutinib small molecule class oral cancer drug that inhibits Bruton's tyrosine kinase (BTK) enzyme.They are widely used for treating CLL.Ibrutinib suppresses peripheral lymphocytes, causing both lymphopenia and neutropenia.It has little effect on serum immunoglobulin levels reportedly does not cause reactivation of tuberculosis or opportunistic...

10.4274/vhd.galenos.2024.2024-1-1 article EN Viral Hepatitis Journal 2024-04-01

Zoonotic diseases, which are a major public health problem in our city, have negative impact on and also cause economic losses due to yield of animals deaths. This study was carried out determine the seroprevalence tularemia, bartonellosis, brucellosis, Q fever, cystic echinococcosis risk groups for zoonotic infection.Ninety serum samples were taken from people covering veterinarian, butchers, farmers examined with following tests: Microagglutination test indirect fluorescent antibody (IFAT)...

10.4103/1119-3077.181395 article EN Nigerian Journal of Clinical Practice 2016-04-28

Thymosin beta‐4 ( Tβ 4 ) is a major actin‐sequestering molecule that contributes to cell growth, differentiation, motility, survival, mitosis and angiogenesis. It overexpressed in certain type of carcinoma fibrosarcoma lines associated with metastatic potential. The aim this study was investigate the relationship between expression clinicopathologic features VEGF status gastrointestinal stromal tumors GISTs ). Retrospectively, 60 were re‐examined immunohistochemistry for performed. Increased...

10.1111/j.1600-0463.2012.02887.x article EN Apmis 2012-03-24

Chronic hepatitis C (CHC) is now a more curable disease with new direct acting antivirals (DAA). Although high sustained virologic response rates, failures still occur in DAA regimens. Our objective this study was to characterize the real-life presence of clinically relevant resistance - associated substitutions (RASs) HCV NS5A gene CHC patients whose regimen has failed.The enrolled 53 who experienced failure as prospective longitudinal cohort between 2017-2019. Genotypic testing performed...

10.1016/j.ijid.2020.03.061 article EN cc-by-nc-nd International Journal of Infectious Diseases 2020-04-14

Abstract Background Brucellosis is one of the most common zoonotic diseases in world. Osteoarticular complications, especially vertebral system involvement, are commonly reported. However, reports and coreports pulmonary complications thoracal spondylodiscitis epidural abscess rare. Case presentation Spondylodiscitis was detected at T11–12 level, followed by paravertebral abscess, then empyema a 17-year-old Asian female patient without any additional disease. The had used various antibiotics...

10.1186/s13256-022-03702-2 article EN cc-by Journal of Medical Case Reports 2022-12-30

Acinetobacter baumannii strains, are opportunistic pathogens that cause severe nosocomial infections difficult to treat due development of resistance multiple antibiotics. As the antibiotic choices be used in treatment limited, combinations a variety antibiotics used. The aims this study were identify minimal inhibitory concentration (MIC) values colistin and sulbactam against A.baumannii isolates determine vitro activity colistin-sulbactam combination. A total 50 strains isolated from...

10.5578/mb.26289 article EN Mikrobiyoloji Bulteni 2016-07-29

Background/Aims: The present study aimed to determine the changes in epidemiology of hepatitis recent years an adult Turkish population.Materials and Methods: Overall, 852 patients with acute viral from 17 centers were included this study.Their sociodemographic characteristics, clinical courses, treatments, laboratory findings retrospectively analyzed.Results: most commonly found microorganisms B virus (55.2%) A (37.6%), types differed significantly according age group (p≤0.001).The...

10.5152/tjg.2018.17431 article EN The Turkish Journal of Gastroenterology 2018-03-05

ÖZET Çocukluk çağı akut gastroenteritlerinden sorumlu viral etkenler hastaların yaş gruplarına ve yaşadıkları bölgenin iklim özelliklerine göre farklılıklar gösterebilmektedir

10.5222/ankem.2015.059 article TR ANKEM Dergisi 2015-01-01

Resistance to β-lactams in Enterobacteriaceae has been increasing worldwide. This study aimed determine the frequency of β-lactamase genes and antibiotic resistance rates 140 extended-spectrum (ESBL)-producing Escherichia coli isolates obtained from urinary tract infection Ordu Province, Turkey. Isolates were identified by classic methods automated system. ESBL production was confirmed double disk synergy test antimicrobial susceptibility investigated diffusion method. All screened for...

10.1556/030.63.2016.027 article EN Acta Microbiologica et Immunologica Hungarica 2017-04-17

Malaria is still an important public health problem both in Turkey and worldwide. In this research, we examined the epidemiology of malaria using data provided by Control Unit Infectious Disease Division Ordu Health Directory, from years 2002 to 2011.The retrospective study was performed on Provincial Directory. The cases were evaluated according age groups, gender, locations, months parasite species.In last 10 year period, a total 31,575 blood samples 6 (0.02%) detected. Positive all...

10.5152/tpd.2013.18 article EN Turkish Journal of Parasitology 2013-08-23

Objectives:The role of endoplasmic reticulum (ER) stress in the pathogenesis hepatitis B virus (HBV) has been reported.However, serum levels glucose-regulated protein (GRP) 78 which is an ER marker both tissue and circulation have not reported yet.This study aimed to evaluate GRP78 patients with chronic HBV infection.Materials Methods: A total 60 infection 50 control subjects were included this study.According HBV-DNA levels, subdivided into low, mild high subgroups (n=20, each).Serum level...

10.4274/vhd.2018.0011 article EN Viral Hepatitis Journal 2018-12-01

Hepatit A virus (HAV) infeksiyonu dunyada ve ulkemizde yaygin olarak gorulen onemli bir halk sagligi sorunudur. Ciddi morbidite mortalite nedeni olabilen hastaligin yayginligi sosyo-ekonomik kosullarla cevresel faktorlerle yakindan iliskilidir. Bu calismada Eylul 2009-Eylul 2010 tarihleri arasinda Unye Devlet Hastanesi’ne basvuran cesitli nedenlerle anti-HAV IgG tetkiki istenen toplam 728 hastanin sonuclari retrospektif degerlendirilmistir. Toplam olgunun 412’si kiz, 316’si erkek olup, total...

10.18229/ktd.18449 article TR Kocatepe Tıp Dergisi 2011-04-01

Amaç: Ülkemizde sık görülen hepatit B virüsü enfeksiyonu, ciddi bir halk sağlığı sorunu olmasının yanı sıra, tedavi giderleri ve iş gücü kayıpları nedeniyle ekonomik açıdan da önem taşımaktadır.Hepatit virus enfeksiyonlarında alışılmışın dışındaki serolojik test sonuçları, tanı izlem aşamasında yorumlama zorlukları ileri inceleme değerlendirme gerektiren durumlardır.Bu çalışmada yönünden değerlendirilen hastalarda atipik

10.18663/tjcl.04885 article TR Turkish Journal of Clinics and Laboratory 2015-01-01
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