Person: DURDU, BÜLENT
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Publication Metadata only Measles Seroprevalence among Health Care Workersin a Tertiary Hospital, Istanbul Turkey(2018-04-01) DURDU, BÜLENT; DURDU, YASEMİN; Güleç, Nuray; ASLAN, TURAN; DURDU, BÜLENTPublication Metadata only The seroprevalence of toxoplasma in healthy pregnants and evaluation of IgG aviditiy values(2017-01-01) DURDU, BÜLENT; Mutlu, Meral; DURDU, BÜLENTObjective: Toxoplasmosis involving all organs is a protozoal infection caused by Toxoplasma gondii. It is usually asymptomatic. Since T. gondii is very difficult to show directly or to produce on cultural media in diagnosis serological methods are preferred. But IgM antibodies which occur in the acute phase lasts very long in serum. So this leads to wrong acute infection diagnoses. Studies conducted show us that low avidity means the infection occurred in the last 3-4 months, high avidity means the infection occurred at least 6 months before. Due to this, avidity tests are used often in differentiation between acute and chronic disease. In our study we aimed to determine Toxoplasma seroprevalence and avidity values in pregnants.Publication Open Access Discordance between Serum Neutralizing Antibody Titers and the Recovery from COVID-19(2020-09-25T00:00:00Z) Koç, Mm; Kalkan, Yazıcı; Çetin, Nesibe Selma; Doymaz, Mz; Sümbül, B; Durdu, B; YAZICI, MERVE; MERİÇ KOÇ, MELİHA; ÇETİN, NESİBE SELMA; KARAASLAN, ELİF; OKAY, GÜLAY; DURDU, BÜLENT; SÜMBÜL, BİLGE; DOYMAZ, MEHMET ZIYAThe recent pandemic of COVID-19 has caused a tremendous alarm around the world. Details of the infection process in the host have significant bearings on both recovery from the disease and on the correlates of the protection from the future exposures. One of these factors is the presence and titers of neutralizing Abs (NAbs) in infected people. In the current study, we set out to investigate NAbs in the recovered subjects discharged from the hospital in full health. Serum samples from a total of 49 documented consecutive COVID-19 subjects were included in the study. All the subjects were adults, and serum samples collected during the discharge were tested in viral neutralization, enzyme immunoassay (EIA), and Western immunoblot tests against viral Ags. Even though a majority of the recovered subjects had raised significant NAb titers, there is a substantial number of recovered patients (10 out of 49) with no or low titers of NAbs against the virus. In these cohorts as well as in patients with high NAb titers, viral Ag binding Abs were detectable in EIA tests. Both NAb titers and EIA detectable Abs are increased in patients experiencing a severe form of the disease, and in older patients the Ab titers were heightened. The main conclusion is that the recovery from SARS-CoV-2 infection is not solely dependent on high NAb titers in affected subjects, and this recovery process is probably produced by a complex interplay between many factors, including immune response, age of the subjects, and viral pathology.Publication Metadata only Hastanelerde Legionella Kontrolü(2018-12-16) DURDU, BÜLENT; DURDU, BÜLENTPublication Open Access Temporal trends and patterns in antimicrobial-resistant Gram-negative bacteria implicated in intensive care unit-acquired infections: A cohort-based surveillance study in Istanbul, Turkey(2018-09-01) GULTEPE, Bilge; Kritsotakis, Evangelos; Lee, Andrew C. K.; Torun, PERİHAN; Hakyemez, Ismail N.; Aslan, Turan; DURDU, BÜLENT; TORUN, PERİHAN; SÜMBÜL, BİLGEObjectives: This study assessed trends and patterns in antimicrobial-resistant intensive care unit (ICU)-acquired infections caused by Gram-negative bacteria (GNB) in Istanbul, Turkey.Publication Metadata only A rare cause of parotid abscess Salmonella enterica subsp arizonae(2015-11-01) KAYA, HAKAN; DURDU, BÜLENT; KARAMAN KOÇ, ARZU; YEĞİN, YAKUP; SEÇKİN, MUSTAFA; KAYHAN, FATMA TÜLİN; DURDU, BÜLENTPublication Metadata only HIV/AIDS Hastalaında Kanser Prevalansı ve Mortalitesi(2017-11-16) AYDIN, Özlem; GUNDUZ, Alper; SARGIN, Fatma; METE, BİLGÜL; KARAOSMANOĞLU, Hayat; YIDIZ, Dilek; DURDU, BÜLENT; DÖKMETAŞ, İLYAS; TABAK, ÖMER FEHMİ; DURDU, BÜLENTPublication Metadata only Examination of antimicrobial effect of fluoxetine in experimental sepsis model: An in vivo study(2022-10-01T00:00:00Z) Cakir, Ahsen; Bozali, Kubra; Celikten, Mert; Guler, Eray Metin; Sahan, Ebru; DURDU, BÜLENT; SÜMBÜL, BİLGE; KOÇYİĞİT, ABDÜRRAHİM; ŞAHAN, EBRU; DURDU, BÜLENT; SÜMBÜL, BİLGE; KOÇYİĞİT, ABDÜRRAHİMSince most infectious diseases can develop into sepsis, it is still a major medical problem. Some in-vivo studies showed promising properties of fluoxetine in the treatment of infections. This study aims the antimicrobial effect of fluoxetine on the inflammatory process used in the treatment of sepsis-modeled rats. Besides, to investigate the efficacy of fluoxetine on modifying the antibiotic effect of imipenem in the inflammatory response. An experimental sepsis model was divided into negative control, positive control, fluoxetine 5 mg/kg, imipenem 60 mg/kg, and combined (fluoxetine; imipenem). Procalcitonin (PCT), high-sensitivity C-reactive protein (hs-CRP), lactate, myeloperoxidase activity (MPO), the inflammation markers interleukin-1 beta (IL-1 beta), interleukin-6 (IL-6), tumor necrosis factor-alfa (TNF-alpha), and monocyte chemoattractant protein-1 (MCP-1) levels were measured by enzyme-linked immunosorbent assay method. Oxidative stress markers, total oxidant status (TOS), total antioxidant status (TAS), total thiol (TT), and native thiol (NT) were measured using photometric methods. Oxidative stress index (OSI) was calculated according to TAS and TOS levels. The statistical analysis was performed by Statistical Package for Social Sciences version 22.0. After treatment with fluoxetine, imipenem, and combined groups, IL-1 beta, IL-6, TNF-alpha, MPO activity, MCP-1, hs-CRP, PCT, lactate, and the oxidative stress markers OSI, and disulfide levels were decreased (p < 0.05). The TT, NT, and TAS levels significantly statistically increased (p < 0.05). This research demonstrates that fluoxetine has effects as anti-inflammatory and antioxidant, and the combined treatment with antibioticum imipenem indicates positive synergistic effects in the experimental sepsis model.Publication Open Access Analysis of infectious spondylodiscitis: 7-years data(2018-11-01) Koc, Meliha Meric; Okay, GÜLAY; Akkoyunlu, YASEMİN; Bolukcu, SİBEL; Durdu, BÜLENT; Hakyemez, Ismail Necati; OKAY, GÜLAY; AKKOYUNLU, YASEMİN; BOLUKÇU, SİBEL; DURDU, BÜLENT; HAKYEMEZ, İSMAİL NECATİ; MERİÇ KOÇ, MELİHAObjective: Infectious spondylodiscitis (SD) is an infectious disease that is rare and difficult to diagnose due to its non-specific clinical features. In this study, we aimed to describe the clinical and diagnostic features of infectious spondylodiscitis. Methods: All patients who were diagnosed with SD at our hospital during a 7-year period from January 1, 2011 through December 31, 2017 were included in the study. Spondylodiscitis is divided into the following three types: pyogenic, tuberculous, and brucellar. Clinical and laboratory data were collected retrospectively from the medical records of the patients. Results: Of the 118 patients, 66 (55.9%) were female, 81 (68.6%) had pyogenic SD (PSD), 21 (17.8%) had tuberculous SD (TSD), and 16 (13.6%) had brucellar SD (BSD). The mean age was 59.3 ± 14.6 years. Leucocytosis was significantly higher in patients with PSD (p=0.01) than in patients with other types of SD. Thoracic involvement (47.6%) was significantly higher in patients with TSD (p=0.005) than in other patients. Sacral involvement (12.5%) was significantly higher in patients with BSD (p=0.01) than in other patients. Paravertebral abscess formation (42.8%) occurred most frequently in patients with TSD. Microbiologic agents were defined in 50% (18/36) of the surgical specimens and in 12.5% of the fine needle aspiration biopsy (FNAB) specimens. Staphylococcus aureus was the most common microbiological agent in patients with PSD. Spinal surgery was defined as a risk factor for PSD (p = 0.0001). Binary logistic regression analysis revealed that female gender, thoracic involvement and night sweats were the predictive markers for TSD (OR 4.5 [95% CI 1.3-15.3] and OR 5 [95% CI 1.7-14.6]). Conclusion: PSD is the most frequent form of SD. Leucocytosis is most common in patients with PSD. Thoracic involvement and paraspinal abscess were prominent in patients with TSD. Sacral involvement was most common in patients with BSD. Thoracic involvement, female gender and night sweats were the predictive markers for TSD. The microbiological culture positivity rate was higher in surgical specimens compared to FNAB specimens. The need for surgical treatment was most common in patients with TSD.Publication Unknown Late presentation among patients with human immunodeficiency virus infection in Turkey(2019-09-01) Kumbasar Karaosmanoğlu, Hayat; METE, BİLGÜL; Gündüz, Alper; ALTUNTAŞ AYDIN, ÖZLEM; Sargın, Fatma; Yıldız Sevgi, Dilek; DURDU, BÜLENT; DÖKMETAŞ, İLYAS; TABAK, ÖMER FEHMİ; DURDU, BÜLENT