Browsing by Author "ORAL, HALUK BARBAROS"
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Publication Association of cytotoxic T lymphocyte subsets with disease severity in Covid-19(Wiley, 2021-08-01) Kızmaz, Muhammed Ali; Çağan, Eren; Şimşek, Abdurrahman; Dombaz, Fatma; Tezcan, Gülçin; Aşan, Ali; Demir, H. İbrahim; Bal, S. Haldun; Ermiş, Diğdem Yöyen; Coşkun, Necmiye Funda; Akalın, E. Halis; Oral, Haluk Barbaros; Budak, Ferah; Kızmaz, Muhammed Ali; ŞİMŞEK, ABDURRAHMAN; Dombaz, Fatma; TEZCAN, GÜLÇİN; Demir, H. İbrahim; BAL, SALİH HALDUN; YÖYEN ERMİŞ, DİĞDEM; COŞKUN, NECMİYE FUNDA; AKALIN, EMİN HALİS; ORAL, HALUK BARBAROS; BUDAK, FERAH; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmünoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Diş Hekimliği Fakültesi/Temel Bilimler Bölümü.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Göğüs Hastalıkları Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Klinik Mikrobiyoloji ve Enfeksiyon Hastalıkları Anabilim Dalı.; 0000-0001-5334-7911; 0000-0001-8850-0269; 0000-0001-7288-3250; 0000-0002-5956-8755; 0000-0002-8856-7356; 0000-0001-7585-7971; 0000-0003-3604-8826; 0000-0001-7530-1279; 0000-0003-0463-6818; 0000-0001-7625-9148; 0000-0003-3604-8826; HKN-2347-2023; IZP-9398-2023; AAH-3843-2020; F-4657-2014; AAG-7381-2021; K-7285-2012; AAU-8952-2020; DWR-5356-2022; GPN-1473-2022; KBR-5535-2024; GYL-2038-2022; AAD-1271-2019Publication Chronic granulomatous disease diagnosed in adulthood(Turkish Soc Immunology, 2015-12-01) Karakeçili, Faruk; Akın, Hicran; Pekgöz, Murat; Mistik, Reşit; Oral, Haluk Barboros; ORAL, HALUK BARBAROS; Akalın, Halis; AKALIN, EMİN HALİS; Bursa Uludağ Üniversitesi/Tıp Fakültesi/ Enfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Mikrobiyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İç Hastalıkları Anabilim Dalı.; 0000-0002-7368-7187; 0000-0003-0463-6818; 0000-0001-7530-1279; AAU-8952-2020; K-7285-2012Chronic granulomatous disease (CGD) is a rare, genetically heterogeneous disease characterized by severe infections that can be life threatening. The disease develops due to defects in nicotinamide adenine dinucleotide phosphate (NADPH) oxidase system. It is characterized by granuloma formation depending on recurrent infections and increased inflammatory response. Lung, skin, lymph nodes, and liver are the most involved organs. Nitroblue tetrazolium test (NBT) is the most frequently used test in screening. In this article, a chronic granulomatous disease case diagnosed in adulthood and having recurrent liver and lung abscesses is reported in light of the literature. A 22-year-old male patient was admitted to our polyclinic with high fever for two weeks. Patient's family history was received in terms of CGD and NBT was carried out. Patient's NBT result was negative (0%) twice. The patient was administered empiric ceftriaxone and metronidazole treatment. Abscess drainage was planned for the patient diagnosed as CGD as a result of the analyses. The patient who developed fever response and whose laboratory values improved was discharged proposing polyclinic control with trimethoprim/ sulfamethoxazole and itraconazole prophylaxis. This case indicates that, although rarely, CGD might be diagnosed in adulthood in our country where consanguineous marriage and hereditary diseases are common.Publication Construction of a lentiviral vector-carrying sars-cov-2 spike gene for covid-19(Mary Ann Liebert, 2021-10-01) Erendor, F.; Sahin, E. O.; Akkaya, B.; Bisgin, A.; Dora, D. D.; Koksoy, S.; Sanlioglu, S.; Oral, H. B.; ORAL, HALUK BARBAROS; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmunoloji Anabilim Dalı.; 0000-0002-2053-9076; 0000-0002-8024-5635Publication Effect of storage period of erythrocyte suspensions on the CD4 & CD8 T cells(Wiley, 2021-08-01) Bal, Salih Haldun; Kumaş, Levent Tufan; Cevhertaş, Laçin; Yılmaz, İzel; Ellergezen, Pınar Hız; Budak, Ferah; Heper, Yasemin; Göral, Güher; Oral, Haluk Barbaros; BAL, SALİH HALDUN; Kumaş, Levent Tufan; Cevhertaş, Laçin; Yılmaz, İzel; ELLERGEZEN, PINAR; BUDAK, FERAH; HEPER, YASEMİN; Göral, Güher; ORAL, HALUK BARBAROS; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Dr. Rasit Durusoy Kan Bankası.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmünoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Sağlık Bilimleri Enstitüsü/Mikrobiyoloji-İmmünoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Enfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Klinik Mikrobiyoloji Anabilim Dalı.; 0000-0003-2287-3569; 0000-0001-7625-9148; 0000-0003-0463-6818; F-4657-2014; IZP-9398-2023; K-7285-2012; JSK-9450-2023; KBR-5535-2024; FHB-1791-2022; FYD-1431-2022; CPH-1647-2022; CTY-9474-2022; JGX-8396-2023Publication Evaluation of indoleamine 2, 3 dioxygenase (IDO) gene polymorphisms in COVID-19(Wiley, 2021-08-01) Karaca, Mert; Arslan, Gözde; Ermiş, Diğdem Yöyen; Bal, Salih Haldun; Uzaslan, Esra Kunt; Özkalemkaş, Fahir; Macunluoğlu, Aslı Ceren; Budak, Ferah; Akalın, Halis; Oral, Haluk Barbaros; KARACA, MERT; Arslan, Gözde; YÖYEN ERMİŞ, DİĞDEM; BAL, SALİH HALDUN; Uzaslan, Esra Kunt; ÖZKALEMKAŞ, FAHİR; Macunluoğlu, Aslı Ceren; BUDAK, FERAH; AKALIN, EMİN HALİS; ORAL, HALUK BARBAROS; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmunoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Göğüs Hastalıkları Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İç Hastalıkları Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Biostatik Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Enfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Anabilim Dalı.; 0000-0002-6802-5998; 0000-0001-7625-9148; 0000-0001-7530-1279; 0000-0003-0463-6818; 0000-0002-6802-5998; 0000-0001-6711-676X; IZP-9398-2023; AAU-8952-2020; K-7285-2012; F-4657-2014; JFS-2013-2023; AAG-7406-2021; GYL-2038-2022; KBR-5535-2024; AAI-1004-2021; JLE-5241-2023; GBP-6589-2022Publication Evaluation of monocytic/granulocytic cells from spleen and liver in the experimental autoimmune encephalomyelitis mouse model(Wiley, 2021-08-01) Karaçay, Mehmet; Arslan, Gözde; Bayram, Gökçen Güvenç; Dombaz, Fatma; Etgü, Onur; Yumuşak, Ezgi; Ermiş, Diğdem Yöyen; Akkoç, Ahmet; Yalçın, Murat; Oral, Haluk Barbaros; Karacay, Mehmet; Arslan, Gozde; Dombaz, Fatma; Etgu, Onur; Yumusak, Ezgi; YÖYEN ERMİŞ, DİĞDEM; AKKOÇ, AHMET; YALÇIN, MURAT; ORAL, HALUK BARBAROS; Bursa Uludağ Üniversitesi/Sağlık Bilimleri Enstitüsü.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmünoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Veteriner Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Veteriner Fakültesi/Fizyoloji Anabilim Dalı.; 0000-0001-7288-3250; 0000-0002-5090-7917; 0000-0002-5600-8162; 0000-0003-0463-6818; JFS-2013-2023; K-7285-2012; HKW-7185-2023; AAG-6956-2021; CXY-4200-2022; DWR-5356-2022; CPT-2053-2022; GYL-2038-2022; DTZ-3578-2022Publication Evaluation of one year, five years and ten years life time of patients with kidney transplant: Single-center experience(Lippincott Williams & Wilkins, 2020-09-01) Elgin, Ersin; Aydın, Mehmet Fethullah; Ünsal, Oktay; Yıldız, Abdulmecid; Oruç, Ayşegül; Günseren, Kadir Ömur; Çiçek, Mehmet Çağatay; Budak, Ferah; Oral, H. Barbaros; Ersoy, Alparlan; Elgin, Ersin; Aydın, Mehmet Fethullah; Unsal, Oktay; Yıldız, Abdulmecid; ORUÇ, AYŞEGÜL; GÜNSEREN, KADİR ÖMÜR; ÇİÇEK, MEHMET ÇAĞATAY; BUDAK, FERAH; ORAL, HALUK BARBAROS; Ersoy, Alparlan; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Bursa Bölge Koordinasyon Merkezi.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Nefroloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Üroloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmünoloji Anabilim Dalı.; 0000-0002-9509-5799; 0000-0002-5665-7402; 0000-0002-0342-9692; 0000-0001-7625-9148; 0000-0003-0463-6818; F-4657-2014; K-7285-2012; AAH-4002-2021; AAJ-8220-2020; IZP-9398-2023; DXA-2790-2022; JKA-8956-2023; JJY-8484-2023; EIF-8983-2022; JJO-6552-2023; CNT-9025-2022Publication Evaluation of some blood parameters and percentage of CD4+or CD8+T cells from spleen and liver from the experimental autoimmune encephalomyelitis mouse model(Wiley, 2021-08-01) Arslan, Gözde; Karacay, Mehmet; Bayram, Gökçen Güvenç; Özoğlu, Efe; Dombaz, Fatma; Etgü, Onur; Yumuşak, Ezgi; Ermiş, Diğdem Yöyen; Akkoç, Ahmet; Yalçın, Murat; Oral, Haluk Barbaros; Arslan, Gözde; Karaçay, Mehmet; ÖZOĞLU, EFE; Dombaz, Fatma; Etgü, Onur; Yumuşak, Ezgi; YÖYEN ERMİŞ, DİĞDEM; AKKOÇ, AHMET; YALÇIN, MURAT; ORAL, HALUK BARBAROS; Bursa Uludağ Üniversitesi/Sağlık Bilimleri Enstitüsü.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmünoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Veteriner Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Veteriner Fakültesi/Fizyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Biyokimya Anabilim Dalı.; 0000-0001-7288-3250; 0000-0002-5090-7917; 0000-0002-5600-8162; 0000-0003-0463-6818; K-7285-2012; AAG-6956-2021; JFS-2013-2023; HKW-7185-2023; CXY-4200-2022; FSU-7707-2022; DWR-5356-2022; JIJ-1849-2023; GYL-2038-2022; DTZ-3578-2022Publication Evaluation of the potential roles of activin-A, activin-B, and follistatin molecules exhibiting immunomodulatory properties in brucellosis(Wiley, 2021-08-01) Kızmaz, Muhammed Ali; Ellergezen, Pınar Hız; Demir, Nesrin; Çağan, Eren; Akalın, Emin Halis; Oral, Haluk Barbaros; Budak, Ferah; Kızmaz, Muhammed Ali; ELLERGEZEN, PINAR; AKALIN, EMİN HALİS; ORAL, HALUK BARBAROS; BUDAK, FERAH; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmünoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Klinik Mikrobiyoloji ve Enfeksiyon Hastalıkları Anabilim Dalı.; 0000-0001-5334-7911; 0000-0001-7530-1279; 0000-0003-0463-6818; 0000-0001-7625-9148; AAU-8952-2020; F-4657-2014; K-7285-2012; HKN-2347-2023; IZP-9398-2023Publication Evaluation of the roles of regulatory B (Breg) cells and B cell exhaustion in COVID-19(Wiley, 2021-08-01) Budak, Ferah; Çağan, Eren; Kızmaz, Muhammed Ali; Şimşek, Abdurrahman; Dombaz, Fatma; Tezcan, Gülçin; Asan, Ali; Bal, S. Haldun; Ermiş, Diğdem Yöyen; Demir, H. İbrahim; Ediger, Dane; Yılmaz, Emel; Oral, Haluk Barbaros; Akalın, E. Halis; BUDAK, FERAH; Kızmaz, Muhammed Ali; ŞİMŞEK, ABDURRAHMAN; Dombaz, Fatma; TEZCAN, GÜLÇİN; BAL, SALİH HALDUN; YÖYEN ERMİŞ, DİĞDEM; Demir, H. İbrahim; EDİGER, DANE; YILMAZ, EMEL; ORAL, HALUK BARBAROS; AKALIN, EMİN HALİS; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmünoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Diş Hekimliği Fakültesi/Temel Bilimler Bölümü.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Göğüs Hastalıkları Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Klinik Mikrobiyoloji ve Enfeksiyon Hastalıkları Anabilim Dalı.; 0000-0001-7625-9148; 0000-0001-5334-7911; 0000-0001-8850-0269; 0000-0001-7288-3250; 0000-0002-5956-8755; 0000-0002-8856-7356; 0000-0001-7585-7971; 0000-0002-2954-4293; 0000-0003-1785-3539; 0000-0003-0463-6818; 0000-0001-7530-1279; AAG-7381-2021; AAH-3843-2020; K-7285-2012; F-4657-2014; IZP-9398-2023; AAU-8952-2020; HKN-2347-2023; DWR-5356-2022; KBR-5535-2024; GYL-2038-2022; GPN-1473-2022; AAE-9142-2019; GDP-0005-2022Publication Flow cytometric analysis of T, B, and NK cells antigens in patients with mycosis fungoides(Hindawi, 2015-11-24) Yazıcı, Serkan; Başkan, Emel Bülbül; Budak, Ferah; Oral, Barbaros; Adım, Şaduman Balaban; Kalın, Zübeyde Ceylan; Özkaya, Güven; Aydoğan, Kenan; Sarıcaoğlu, Hayriye; Tunalı, Şükran; YAZİCİ, SERKAN; BÜLBÜL BAŞKAN, EMEL; BUDAK, FERAH; ORAL, HALUK BARBAROS; BALABAN ADIM, ŞADUMAN; Kalın, Zübeyde Ceylan; ÖZKAYA, GÜVEN; AYDOĞAN, KENAN; SARICAOĞLU, HAYRİYE; Tunalı, Şükran; Uludağ Üniversitesi/Tıp Fakültesi/Dermatoloji ve Zührevi Hastalıklar Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/İmmünoloji Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Biyoistatistik Anabilim Dalı.; 0000-0001-6407-0962; 0000-0001-7625-9148; 0000-0003-0463-6818; 0000-0003-0297-846X; 0000-0002-0193-1128; IZP-9398-2023; AAH-2459-2021; AAH-1388-2021; A-4421-2016; F-4657-2014; AAH-6216-2021; K-7285-2012; EMN-0789-2022; CWV-8710-2022; DPU-8534-2022; GGH-7385-2022We retrospectively analyzed the clinicopathological correlation and prognostic value of cell surface antigens expressed by peripheral blood mononuclear cells in patients with mycosis fungoides (MF). 121 consecutive MF patients were included in this study. All patients had peripheral blood flow cytometry as part of their first visit. TNMB and histopathological staging of the cases were retrospectively performed in accordance with International Society forCutaneous Lymphomas/European Organization of Research and Treatment of Cancer (ISCL/EORTC) criteria at the time of flow cytometry sampling. To determine prognostic value of cell surface antigens, cases were divided into two groups as stable and progressive disease. 17 flow cytometric analyses of 17 parapsoriasis (PP) and 11 analyses of 11 benign erythrodermic patients were included as control groups. Fluorescent labeled monoclonal antibodies were used to detect cell surface antigens: T cells (CD3(+), CD4(+), CD8(+), TCR alpha beta(+), TCR gamma delta(+), CD7(+), CD4(+) CD7(+), CD4(+) CD7(-), and CD71(+)), B cells (HLA-DR+, CD19(+), and HLA-DR(+)CD19(+)), NKT cells (CD3(+)CD16(+)CD56(+)), and NK cells (CD3(-)CD16(+)CD56(+)). The mean value of all cell surface antigens was not statistically significant between parapsoriasis and MF groups. Along with an increase in cases of MF stage statistically significant difference was found between the mean values of cell surface antigens. Flow cytometric analysis of peripheral blood cell surface antigens in patients with mycosis fungoides may contribute to predicting disease stage and progression.Publication Il-21: A potential biomarker for diagnosis and predicting prognosis in covid-19 patients(European Respiratory Society Journals, 2021-09-05) Öztürk, Nilüfer Aylin Acet; Ursavaş, Ahmet; Dilektaşlı, Aslı Görek; Demirdöğen, Ezgi; Coşkun, Funda; Ediger, Dane; Uzaslan, Esra; Yöyen-Ermiş, Diğdem; Karaca, Mert; Terzi, Orkun; Bayram, Merve; Ömer, Dilara; Yiğitliler, Büşra; Yurttaş, Ahmet; Maharramov, Shahriyar; Çelik, Gamze; Oral, Barbaros; Karadağ, Mehmet; ACET ÖZTÜRK, NİLÜFER AYLİN; URSAVAŞ, AHMET; GÖREK DİLEKTAŞLI, ASLI; DEMİRDÖĞEN, EZGİ; COŞKUN, NECMİYE FUNDA; EDİGER, DANE; UZASLAN, AYŞE ESRA; YÖYEN ERMİŞ, DİĞDEM; KARACA, MERT; TERZİ, ORKUN ERAY; BAYRAM, MERVE; ÖMER TOPÇU, DİLARA; YURTTAŞ, AHMET; ORAL, HALUK BARBAROS; KARADAĞ, MEHMET; MAHARRAMOV, SHAHRİYAR; YAZICI, GAMZE; Bursa Uludağ Üniversitesi/Tıp Fakültesi.; 0000-0002-6375-1472; 0000-0002-7400-9089; 0000-0003-3604-8826; 0000-0002-2954-4293; 0000-0001-5871-8769; 0000-0002-9027-1132; AAG-8744-2021; JPK-7012-2023; AAH-3888-2021; AAE-9142-2019; AAI-3169-2021; AAD-1271-2019Publication Impact of Storage Period on CD4+/CD8+ T Lymphocyte Ratio in Erythrocyte Suspensions(Turkish Soc Immunology, 2020-01-01) Bal, Salih Haldun; BAL, SALİH HALDUN; Kumaş, Levent Tufan; Heper, Yasemin; HEPER, YASEMİN; Budak, Ferah; BUDAK, FERAH; Göral, Guher; Can, Fatma Ezgi; Oral, Haluk Barbaros; ORAL, HALUK BARBAROS; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmunoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/BioistatistikAnabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Mikrobiyoloji Anabilim Dalı.; 0000-0001-7625-9148; 0000-0003-0463-6818; JSL-7718-2023; HJY-9001-2023; K-7285-2012; F-4657-2014; AAH-6506-2021; IZP-9398-2023Introduction: Some immunologic changes in the recipient derived by allogeneic blood transfusion (ABT) are called Transfusion Related Immune Modulation (TRIM). Despite the exact mechanisms of these changes are not known, it is thought that ABT causes a decrease of CD4/CD8 ratio in the recipient. This study aimed to determine the CD4/CD8 ratio in stored erythrocyte suspensions (ES) and to obtain new information about TRIM mechanisms.Materials and Methods: Whole blood components used in our study were collected from 10 healthy volunteers. ES' obtained from whole blood were divided into three equal aliquots. Test samples which were related to 0th, 21st and 42nd storage days were prepared from these aliquots. CD3, CD4 and CD8 surface markers in peripheral blood mononuclear cells were investigated with flow-cytometer in these test samples.Results: Our data were evaluated according to storage days. Decrease of CD3 (p=0,001), CD4 (p<0,001), CD8 (p=0,012) expressing mononuclear blood cells and helper T cells in 21st-day samples, CD4 (p=0,035) and CD8 (p=0,017) expressing cells in 42nd-day samples compared to Day 0 samples and increase of CD3 (p=0,027) expressing cells in 42nd-day samples compared to 21st-day samples were found statistically significant.Conclusion: In our study, we did not find any significant change in the ratio of CD4(+)/CD8(+) cells in ES. Detailed studies can help us to obtain more comprehensive knowledge on this field.Publication Interleukin-21: A potential biomarker for diagnosis and predicting prognosis in covid-19 patients(Tubitak Scientific & Technological Research Council Turkey, 2021-01-01) ACET ÖZTÜRK, NİLÜFER AYLİN; URSAVAŞ, AHMET; GÖREK DİLEKTAŞLI, ASLI; DEMİRDÖĞEN, EZGİ; COŞKUN, NECMİYE FUNDA; EDİGER, DANE; UZASLAN, AYŞE ESRA; YÖYEN ERMİŞ, DİĞDEM; KARACA, MERT; TERZİ, ORKUN ERAY; BAYRAM, MERVE; ÖMER TOPÇU, DİLARA; Yigitliler, Busra; YURTTAŞ, AHMET; Maharramov, Shahriyar; YAZICI, GAMZE; ORAL, HALUK BARBAROS; KARADAĞ, MEHMET; Bursa Uludağ Üniversitesi/Tıp Fakültesi.; 0000-0002-6375-1472; 0000-0001-7099-9647; 0000-0002-7400-9089; 0000-0003-3604-8826; 0000-0002-2954-4293; 0000-0001-5871-8769; 0000-0003-0463-6818; 0000-0002-9027-1132; AAG-7406-2021; AAD-1271-2019; AAH-3888-2021; K-7285-2012; AAG-8744-2021; AAI-3169-2021; JPK-7012-2023; AAE-9142-2019Background/aim: COVID-19 patients have a wide spectrum of disease severity. Several biomarkers were evaluated as predictors for progression towards severe disease. IL-21 is a member of common gamma-chain cytokine family and creates some specific effects during programming and maintenance of antiviral immunity. We aimed to assess IL-21 as a biomarker for diagnosis and outcome prediction in patients hospitalized with COVID-19. Materials and methods: Patients with a preliminary diagnosis of COVID-19 and pneumonia other than COVID-19 admitted to a tertiary care hospital were included consecutively in this comparative study. Results: The study population consisted of 51 patients with COVID-19 and 11 patients with non-COVID-19 pneumonia. Serum IL-21 concentration was markedly higher, and serum CRP concentration was significantly lower in COVID-19 patients compared to nonCOVID-19 pneumonia patients. Within COVID-19 patients, 10 patients showed radiological and clinical progression. Patients with clinical worsening had lower lymphocyte count and haemoglobin. In addition to that, deteriorating patients had higher urea, LDH levels, and elevated concentration of both IL-6 and IL-21. The cut-off value of 106 ng/L for IL-21 has 80.0% sensitivity, %60.9 specificity for discriminating patients with clinical worsening. Multivariable analysis performed to define risk factors for disease progression identified IL-6 and IL-21 as independent predictors. Odds ratio for serum IL-6 concentrations >_ 3.2 pg/mL was 8.07 (95% CI: 1.3747.50, p = 0.04) and odds ratio for serum IL-21 concentrations >_ 106 ng/L was 6.24 (95% CI: 1.04 - 37.3, p = 0.02). Conclusion: We identified specific differences in serum IL-21 between COVID-19 and non-COVID-19 pneumonia patients. Serum IL-21 measurement has promising predictive value for disease progression in COVID-19 patients. High serum IL-6 and IL-21 levels obtained upon admission are independent risk factors for clinical worsening.Publication Investigation of changes in exosomes profile during storage period of erythrocyte suspensions(Springer India, 2020-08-11) Pashazadeh, Mehrdad; Oral, Haluk Barbaros; Budak, Ferah; Pashazadeh, Mehrdad; ORAL, HALUK BARBAROS; BUDAK, FERAH; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi İmmünoloji Anabilim Dalı.; 0000-0001-9103-6276; 0000-0001-7625-9148; IZP-9398-2023; F-4657-2014; DZE-7532-2022; FQR-1753-2022This study aimed to investigate the relationship of exosomes in erythrocyte suspension (ES) with leukoreduction and storage period. In this study, we expected to obtain new information about the immunomodulatory effect of allogeneic blood transfusion. Whole blood from healthy donors (10) were transferred to two separate blood bags by an equal amount converted into ES. One of the bags was passed through the leukocyte filter to obtain reduced leukocyte and non-reduced ESs and divided into four equal blood bags. Flow cytometry was used to identify and quantify exosomes in the samples on the 0th, 14th, 28th, and 42nd days at 4 degrees C. The exosomes were first coated with anti-CD9 antibodies with carboxylates beads and exosome volumes were determined by BCA Protein Assay to determine the amount of exosome-containing samples to be bound by beads and investigated by flow cytometry. Exosomes which were derived from Th, NK, NK-T cells were not detected in our study. There were no significant differences in exosome profiles between NL-ES and LR-ES groups. Statistically significant results (in comparison with the 0th day) were found as below. Exosomes that were derived from; T lymphocytes, decrease in LR-ES groups at 42nd-day samples (P < 0.05). Tc lymphocytes, decrease in NL-ES groups at 14th day and 42nd-day samples (P < 0.05). B lymphocytes, a decrease in NL-ES groups at the sample of 28th and 42nd-days (P < 0.05). MDSC and G-MDSC, decrease in both NL-ES groups and LR-ES groups at the sample of 14th, 28th, and 42nd-days (P < 0.05). Our results suggest that exosomes in erythrocyte suspensions are not affected by the leukoreduction procedure. Exosomes which can freely pass from leukocyte filters may be the main cause of the insufficiency of leukoreduction to prevent TRIM.Publication Mediators of gut mucosal immunity and inflammation(Hindawi, 2015-01-01) Tekin, ishak özel; Oral, HALUK Barbaros; Shiri-Sverdlov, Ronit; ORAL, HALUK BARBAROS; Uludağ Üniversitesi/Tıp Fakültesi/İmmünoloji Anabilim Dalı; K-7285-2012Publication Prevalence of HLA-B*57 serotype associated with hypersensitivity reaction in HIV treatment in Turkish population(Wiley, 2021-08-01) Kızmaz, Muhammed Ali; Aymak, Figen; Oral, Haluk Barbaros; Budak, Ferah; Kızmaz, Muhammed Ali; Aymak, Figen; ORAL, HALUK BARBAROS; BUDAK, FERAH; Bursa Uludağm Üniversitesi/Tıp Fakültesi/İmminoloji Anabilim Dalı.; 0000-0001-5334-7911; 0000-0003-0463-6818; 0000-0001-7625-9148; F-4657-2014; K-7285-2012; IZP-9398-2023; HKN-2347-2023Publication Relationship of exosome profile with acute and chronic inflammation in brucellosis(Wiley, 2021-08-01) Şimşek, Abdurrahman; Kızmaz, Muhammed Ali; Ellergezen, Pınar Hız; Bal, Salih Haldün; Bozkurt, Tuğçe; Akalın, Emin Halis; Oral, Haluk Barbaros; Yılmaz, Özer; Budak, Ferah; ŞİMŞEK, ABDURRAHMAN; Kızmaz, Muhammed Ali; Ellergezen, Pınar Hız; BAL, SALİH HALDUN; Bozkurt, Tuğçe; AKALIN, EMİN HALİS; ORAL, HALUK BARBAROS; YILMAZ, ÖZER; BUDAK, FERAH; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmünoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Enfeksiyon ve Klinik Mikrobiyolojisi Anabilim Dalı.; Bursa Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Biyoloji Bölümü.; 0000-0001-8850-0269; 0000-0001-5334-7911; 0000-0001-5144-091X; 0000-0001-7530-1279; 0000-0003-0463-6818; 0000-0001-7625-9148; IZP-9398-2023; K-7285-2012; AAG-7381-2021; HKN-2347-2023; AAU-8952-2020; F-4657-2014; CPH-1647-2022; KBR-5535-2024; KLE-8588-2024; EHB-5539-2022Publication The age-dependent role of Th22, Tc22, and Tc17 cells in the severity of pneumonia in COVID-19 immunopathogenesis(Wiley, 2021-08) Şimşek, Abdurrahman; Çağan, Eren; Kızmaz, Muhammed Ali; Dombaz, Fatma; Tezcan, Gülçin; Asan, Ali; Demir, H. İbrahim; Bal, S. Haldun; Ermiş, Diğdem Yoyen; Demirdöğen, Ezgi; Heper, Yasemin; Akalın, E. Halis; Oral, Haluk Barbaros; Budak, Ferah; ŞİMŞEK, ABDURRAHMAN; TEZCAN, GÜLÇİN; BAL, SALİH HALDUN; DEMİRDÖĞEN, EZGİ; BUDAK, FERAH; HEPER, YASEMİN; AKALIN, EMİN HALİS; Kızmaz, Muhammed Ali; Dombaz, Fatma; YÖYEN ERMİŞ, DİĞDEM; ORAL, HALUK BARBAROS; Bursa Uludağ Üniversitesi/Tıp Fakültesi; 0000-0001-8850-0269; 0000-0001-5334-7911; 0000-0001-7288-3250; 0000-0002-5956-8755; 0000-0002-7400-9089; 0000-0001-7625-9148; AAG-7381-2021; HKN-2347-2023; DWR-5356-2022; KBR-5535-2024; GYL-2038-2022; AAH-9812-2021; CTY-9474-2022; AAU-8952-2020; IZP-9398-2023; K-7285-2012; AAH-3843-2020Publication The distribution of mature and/or immature myeloid cells and their role in effective anti-viral immune responses in COVID-19 positive patients(Wiley, 2021-08-01) Ermiş, Diğdem Yöyen; Dömbaz, Fatma; Karaçay, Mehmet; Etgü, Onur; Kızmaz, Muhammed Ali; Şimşek, Abdurrahman; Çağan, Eren; Aşan, Ali; Yılmaz, Emel; Kazak, Esra; Pınar, İbrahim Ethem; Bal, Salih Haldun; Arslan, Gözde; Karaca, Mert; Özkocaman, Vildan; Özkalemtaş, Fahir; Akalın, Emin Halis; Budak, Ferah; Oral, Haluk Barbaros; YÖYEN ERMİŞ, DİĞDEM; Dombaz, Fatma; Karaçay, Mehmet; Etgü, Onur; Kızmaz, Muhammed Ali; ŞİMŞEK, ABDURRAHMAN; YILMAZ, EMEL; KAZAK, ESRA; PINAR, İBRAHİM ETHEM; BAL, SALİH HALDUN; Arslan, Gözde; KARACA, MERT; ÖZKOCAMAN, VİLDAN; Özkalemtaş, Fahir; AKALIN, EMİN HALİS; BUDAK, FERAH; ORAL, HALUK BARBAROS; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmünoloji Ana Bilim Dalı.; Bursa Uludağ Üniversitesi/Sağlık Bilimleri Enstitüsü.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Rasit Durusoy Kan Bankası.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Hemotoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Enfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Anabilim Dalı.; 0000-0001-7288-3250; 0000-0001-5334-7911; 0000-0001-8850-0269; 0000-0002-8856-7356; 0000-0003-1785-3539; 0000-0001-7530-1279; 0000-0001-7625-9148; 0000-0003-0463-6818; KHE-5423-2024; AAU-8952-2020; HKN-2347-2023; JGM-6601-2023; JFS-2013-2023; AAG-7381-2021; K-7285-2012; IZP-9398-2023; F-4657-2014; JWP-2738-2024; GYL-2038-2022; DWR-5356-2022; CXY-4200-2022; CPT-2053-2022; GDP-0005-2022; AAG-8459-2021; FQJ-3657-2022; FQG-8981-2022