Person: SÜMBÜL, BİLGE
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Publication Open Access Screening of mecC Gene in Methicillin Resistant Staphylococcus aureus Isolates(2022-04-01T00:00:00Z) Ceylan, Ayse Nur; SÜMBÜL, BİLGE; DOYMAZ, Mehmet Ziya; SÜMBÜL, BİLGE; DOYMAZ, MEHMET ZIYAObjective: The diagnosis and treatment of mecC positive methicillin resistant Staphylococcus aureus (MRSA) isolates pose a significant problem in clinical microbiology and infectious disease practices. The studies on the frequency of mecC positive isolates in Turkey is rather scarce. In the present study, we aimed to investigate the presence of mecA, mecC, spa and pvu genes in MRSA strains isolated from various clinical specimens submitted to Clinical Microbiology Laboratories of Bezmialem Vakıf Hospital. Methods: We performed nucleic acid extraction and multiplex polymerase chain reaction (PCR) to 126 MRSA strains to detect mecC, mecA, spa and pvl genes. Results: According to the multiplex PCR results of 126 MRSA strains studied, 126 (100%) had mecA, 107 (85%) had spa, and 3 (2%) had pvl genes. We performed another polymerase chain reaction protocol and spa genes were identified in 19 of specimens, which were found negative priorly. Conclusion: Considering the factors that a university medical center where the study was conducted provided a tertiary healthcare service to a large metropolitan area in Istanbul and none of the isolates carried mecC gene might indicate that mecC gene carrying MRSA isolates did not pose a significant public health threat in Turkey.Publication Open Access High prevalence of chronic hepatitis D virus infection in Eastern Turkey: urbanization of the disease(2016-04-01) Dulger, Ahmet Cumhur; Suvak, Burak; Gonullu, Hayriye; GONULLU, Edip; Gultepe, BİLGE; Aydın, İbrahim; Batur, Abdussamet; Karadaş, Sevdegül; Olmezi, Sehmus; SÜMBÜL, BİLGEIntroduction: Both hepatitis B virus (HBV) and hepatitis D virus (HDV) infection play an increasingly important role in liver diseases. The main objective of this study was to investigate the socio-epidemiological, laboratory and radiological aspects of both HBV and HDV infection near the Iranian border of Turkey. Material and methods: The study included 3352 patients with HBV and HDV infection. Socioepidemiological, laboratory and radiological aspects of the study subjects were retrospectively examined. Comorbid metabolic diseases were not assessed due to the retrospective design of the study. Results: Most of the study subjects were HBe antigen negative. No significant difference in terms of HBV-DNA levels or HBe antigen seropositivity was detected between the city centre and rural areas (p > 0.005). The mean HBV-DNA level in the anti-HDV-positive group was significantly lower than in the anti-HDV-negative group (p < 0.001). The rate of HDV-RNA positivity in women was higher than in their male counterparts (p = 0.017). Anti-HDV-IgG was detected in 18.4% of tested subjects who came from an urban area. In contrast, 12.5% of subjects of the rural group had a positive result for anti-HDV-IgG. Among 134 ultrasonographically evaluated delta hepatitis patients, 37.3% had liver cirrhosis. On the other hand, in 1244 patients with hepatitis B monoinfection, there were 90 patients with liver cirrhosis. Radiologically, the rate of hepatic steatosis in delta hepatitis patients was lower than in those with HBV monoinfection. Conclusions: Hepatitis D virus infection was particularly prevalent among the urban population as well as in female subjects. More broadly, the current observations are the first to suggest an inverse correlation between delta hepatitis and ultrasonography-proven hepatic steatosis.Publication Open Access The relationship between serum histon levels and the severity of acute pancreatitis.(2019-09-01) Biberci, Keskin; Şentürk, H; Köker, İH; Sümbül, Gültepe; İnce, AT; İNCE, ALİ TÜZÜN; SÜMBÜL, BİLGE; ŞENTÜRK, HAKANBackground/Aims: Despite various scoring systems and imaging methods, it is hard to predict the severity and the course of acute pancreatitis (AP), thereby necessitating better and more reliable markers. Since inflammation plays a key role in the pathogenesis of AP, we sought to determine whether histone, which is a novel inflammatory marker, may play a role in the prediction of severity and prognosis. Materials and Methods: A total of 88 consecutive adult patients (>18 years) with a first AP episode were prospectively enrolled in the study. Severe AP was defined as having a revised Atlanta score >3 in the first 48 h after admission. Circulating histone 3 and 4 levels were measured using the enzyme-linked immunosorbent assay method. Results: Eighty-eight consecutive adult patients with a first episode of AP were divided into two groups according to severity, in which 56 (63.6%) were assigned to the mild AP group and 32 (36.4%) to the severe AP group. White blood cell, hemoglobin, creatinine, and aspartate aminotransferase levels were significantly higher in the severe AP group. However, there was no difference in serum histone levels between the groups, and there was no correlation between revised Atlanta score and serum histone levels either. Conclusion: Serum histone levels did not significantly differ between the severe and mild AP groups. Therefore, these markers may not provide additional benefit for determining the severity of AP.Publication Metadata only Evaluation of nasal fluid beta-defensin 2 levels in children with allergic rhinitis(2017-06-01) DILEK, Fatih; EMIN, Ozkaya; Gultepe, BİLGE; Yazici, MEBRURE; Cakir, ERKAN; GEDIK, Ahmet Hakan; SÜMBÜL, BİLGE; YAZICI, MEBRURE; ÇAKIR, ERKANAim: Knowledge about the role of the innate immune system in the pathogenesis of allergic diseases has been expanding in recent years. Defensins are antimicrobial peptides that are components of the innate immune system. Defensins have strong efficacy against bacterial, viral, and fungal infections. Moreover, they have regulatory functions in many physiologic processes such as antitumoral immunity, chemotaxis, inflammation, and wound healing. In this study, we aimed to investigate a-defensin 2 levels in the nasal fluids of children with allergic rhinitis.Publication Metadata only Utility of Rapid Antibody Test for Screening COVID-19 Among Healthcare Professionals(2020-10-01T00:00:00Z) Okay, Gulay; Kacmaz, Asiye Bahar; Sumbul, BİLGE; Bolukcu, Sibel; Akkoyunlu, Yasemin; Meric Koc, Meliha; SÜMBÜL, BİLGE; OKAY, GÜLAY; DURDU, BÜLENT; AKKOYUNLU, YASEMİNObjective: This study aims to assess the effectivity of a rapid antibody test on detecting the occupational exposure in healthcare professionals who have been working in a pandemic hospital since the initial cases were seen in our country.Publication Open Access Usefulness of oxidative stress marker evaluation at admission to the intensive care unit in patients with COVID-19(2021-07-01T00:00:00Z) Daşkaya, Hayrettin; Yılmaz, Sinan; Uysal, Harun; Sümbül, Bilge; Karaaslan, Kazım; DAŞKAYA, HAYRETTİN; YILMAZ, SİNAN; UYSAL, HARUN; ÇALIM, MUHITTIN; SÜMBÜL, BİLGE; YURTSEVER, İSMAİL; KARAASLAN, KAZıMObjective:Two critical processes in the coronavirus disease 2019 (COVID-19) pandemic involve assessing patients- intensive care needs and predicting disease progression during patients- intensive care unit (ICU) stay. We aimed to evaluate oxidative stress marker status at ICU admission and ICU discharge status in patients with COVID-19.Methods:We included patients in a tertiary referral center ICU during June-December 2020. Scores of Acute Physiology and Chronic Health Evaluation II (APACHE II), Sequential Organ Failure Assessment (SOFA), and clinical severity, radiologic scores, and healthy discharge status were noted. We collected peripheral blood samples at ICU admission to evaluate total antioxidants, total oxidants, catalase, and myeloperoxidase levels.Results:Thirty-one (24 male, 7 female) patients were included. At ICU admission, patients- mean APACHE II score at ICU admission was 17.61 ± 8.9; the mean SOFA score was 6.29 ± 3.16. There was no significant relationship between clinical severity and oxidative stress (OS) markers nor between radiological imaging and COVID-19 data classification and OS levels. Differences in OS levels between patients with healthy and exitus discharge status were not significant.Conclusions:We found no significant relationship between oxidative stress marker status in patients with COVID-19 at ICU admission and patients- ICU discharge status.Publication Metadata only Raftlin, presepsin levels and thiol-disulfide homeostasis in acute appendicitis: A pilot study(2018-11-01) KOÇYİĞİT, ABDÜRRAHİM; ERSOY, YELİZ EMİNE; SELEK, ŞAHBETTİN; SÜMBÜL, BİLGE; ÖZER, ÖMER FARUK; GÜLER, ERAY METİN; MERAL, İSMAİL; YİĞİT, MEHMET; ÖZER, ÖMER FARUK; GÜLER, ERAY METİN; KOÇYİĞİT, ABDÜRRAHİM; MERAL, İSMAİL; SÜMBÜL, BİLGE; SELEK, ŞAHABETTİN; ERSOY, YELIZ EMINEObjective: To investigate some of the new inflammatory and oxidative stress markers in acute appendicitis.Publication Metadata only <i>Clostridium difficile</i> infection: Is there a change in the underlying factors? Inflammatory bowel disease and <i>Clostridium difficile</i>.(2019-11-01T00:00:00Z) Durdu, B; Bolukcu, S; Okay, G; Hakyemez, IN; Gultepe, BİLGE; Koc, MELİHA; Aslan, T; SÜMBÜL, BİLGE; OKAY, GÜLAY; DURDU, BÜLENT; MERİÇ KOÇ, MELİHAPublication Metadata only Higher Seroprevalence of Hepatitis B Virus Antigen in Patients with Cystic Hydatid Disease than in Patients Referred to Internal Medicine Clinics in Turkey(2014-02-01T00:00:00Z) Esen, Ramazan; Gultepe, BİLGE; Dulger, Ahmet Cumhur; GULTEPE, Ilhami; Karadaş, Sevdegül; Ebinc, Senar; SÜMBÜL, BİLGETurkey remains an intermediate area for prevalence of hepatitis B virus (HBV) surface antigenemia. The sheepraising areas of Turkey also pose a high risk for cystic hydatid disease (CHD). Both HBV infection and CHD are major public health issues particularly in eastern parts of Turkey; however, there is no data regarding HBV infection in patients who have had CHD. The aims of this study were to evaluate the association between HBV infection and CHD and suggest ways to reduce HBV infection which is still widespread in Turkey. A retrospective study was conducted with 94 adult patients with active CHD referred to the hepatology department, Yuzuncuyil University School of Medicine from December 2010 to December 2012. All subjects came from rural areas of the region and underwent ultrasonography of abdomen which detected CHD of the liver. All the patients were serologically positive for Echinococcus granulosus. The control group consisted of 500 patients (300 men and 200 women) referred to the internal medicine clinics for other reasons. The patients with CHD and in the control group were tested for the existence of HBs antigen according to the standard procedures. The seroprevalence of HBs antigen was significantly higher in patients with active CHD than those in the control group (12.7% vs 5.2%; P=0.0017). Our data indicate that there is significant association between HBV infection and CHD. All patients with CHD should be screened for HBV infection.Publication Open Access Efficacy and safety profile of COVID-19 vaccine in cancer patients: a prospective, multicenter cohort study(2022-01-01T00:00:00Z) YASİN, Ayşe İrem; Aydin, Sabin Goktas; SÜMBÜL, BİLGE; KORAL, LOKMAN; ŞİMŞEK, MELİH; Geredeli, Caglayan; Ozturk, Akin; Perkin, Perihan; Demirtas, Derya; Erdemoglu, Engin; HACIBEKİROĞLU, İLHAN; Cakir, Emre; Tanrikulu, Eda; Coban, Ezgi; Ozcelik, Melike; Celik, Sinemis; Teker, Fatih; AKSOY, ASUDE; Firat, Sedat T.; Tekin, Omer; Kalkan, Ziya; Turken, Orhan; Oven, Bala B.; Dane, Faysal; Bilici, Ahmet; Isikdogan, Abdurrahman; ŞEKER, Mesut; TÜRK, HACI MEHMET; Gumus, Mahmut; YASİN, AYŞE İREM; SÜMBÜL, BİLGE; ŞİMŞEK, MELİH; ŞEKER, MESUT; TÜRK, HACI MEHMETAim: To compare the seropositivity rate of cancer patients with noncancer controls after inactive SARS-CoV-2 vaccination and evaluate the factors affecting seropositivity. Method: Spike IgG antibodies against SARS-CoV-2 were measured in blood samples of 776 cancer patients and 715 noncancer volunteers. An IgG level ≥50 AU/ml is accepted as seropositive. Results: The seropositivity rate was 85.2% in the patient group and 97.5% in the control group. The seropositivity rate and antibody levels were significantly lower in the patient group (p < 0.001). Age and chemotherapy were associated with lower seropositivity in cancer patients (p < 0.001). Conclusion: This study highlighted the efficacy and safety of the inactivated vaccine in cancer patients.