Browsing by Author "Asan, Ali"

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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-0005-2022
Macrophage polarization capacity of peripheral blood monocytes and monocytic cell line THP-1 in response to secreted factors from COVID-19 patients
(Wiley, 2021-08-01) Etgü, Onur; Karaçay, Mehmet; Dombaz, Fatma; Kızmaz, Muhammed Ali; Şimsek, Abdurrahman; Asan, Ali; Yılmaz, Emel; Kazak, Esra; Pınar, İbrahim Ethem; Bal, Salih Haldün; Özkocaman, Vildan; Özkalemkaş, Fahir; Akalın, Emin Halis; Budak, Ferah; Oral, Haluk Barbaros; Ermiş, Diğdem Yöyen; Etgü, Onur; Karaçay, Mehmet; Dombaz, Fatma; Kızmaz, Muhammed Ali; ŞİMŞEK, ABDURRAHMAN; YILMAZ, EMEL; KAZAK, ESRA; PINAR, İBRAHİM ETHEM; BAL, SALİH HALDUN; ÖZKOCAMAN, VİLDAN; ÖZKALEMKAŞ, FAHİR; AKALIN, EMİN HALİS; BUDAK, FERAH; ORAL, HALUK BARBAROS; YÖYEN ERMİŞ, DİĞDEM; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İmmünoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İç Hastalıkları Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Temel Tıp Bilimleri Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Enfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Dr Raşit Durusoy Kan Bankası.; 0000-0001-7288-3250; 0000-0001-5334-7911; 0000-0001-8850-0269; 0000-0002-8856-7356; 0000-0003-1785-3539; 0000-0001-9907-1498; 0000-0001-7530-1279; 0000-0001-7625-9148; 0000-0003-0463-6818; JIJ-1849-2023; JHB-7829-2023; DWR-5356-2022; HKN-2347-2023; AAG-7381-2021; GDP-0005-2022; AAG-8459-2021; JGM-6601-2023; KBR-5535-2024; FQG-8981-2022; JIW-1248-2023; AAU-8952-2020; IZP-9398-2023; K-7285-2012; GYL-2038-2022
New treatment options in chronic hepatitis b: How close are we to cure?
(Doc Design Informatics Co Ltd, 2023-12-01) Korkmaz, Pınar; Karakeçili, Faruk; Tekin, Süeda; Demirtürk, Neşe; Asan, Ali; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Mikrobiyoloji Anabilim Dalı.; 0000-0002-8856-7356; 0000-0002-7368-7187; 0000-0002-6186-2494; ADZ-1979-2022; C-1950-2015
Hepatitis B virus (HBV) infection is the leading cause of chronic liver disease worldwide. HBV-infected patients are at a lifetime risk of developing liver cirrhosis and hepatocellular carcinoma (HCC). Today, pegylated interferon (Peg-IFN) and nucleos(t)ide analogs (NAs) are used in the treatment of patients with chronic hepatitis B (CHB). Both treatment options have limitations. Despite effective viral suppression, NAs have little effect on covalently closed circular DNA (cccDNA), the stable episomal form of the HBV genome in hepatocytes. Therefore, the cure rate with NAs is low, and long-term treatment is required. Although the cure rate is better with Peg-IFN, it is difficult to tolerate due to drug side effects. Therefore, new treatment options are needed in the treatment of HBV infection. We can group new treatments under two headings: those that interfere with the viral life cycle and spread and those that modulate the immune response. Clinical studies show that combinations of treatments that directly target the viral life cycle and treatments that regulate the host immune system will be among the important treatment strategies in the future. As new direct -acting antiviral (DAA) and immunomodulatory therapies continue to emerge and evolve, functional cures in HBV treatment may be an achievable goal.
Prevalence of pressure ulcers in hospitalized adult patients in Bursa, Turkey: A multicentre, point prevalence study
(Wiley, 2020-12) Sayan, Halil Erkan; Asan, Ali; Girgin, Nermin Kelebek; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Anesteziyoloji ve Reanimasyon Anabilim Dalı.; DTU-3148-2022; 55663009300
Rationale, aims, and objectives: Pressure ulcers (PUs), which are preventable complications, increase the cost of health care and the risk of prolonged hospital stay, as well as morbidity and mortality. In this study, we aimed to describe the prevalence, clinical features, and risk factors for PUs among hospitalized patients. Method: This study was cross-sectional and conducted over a single day in all the care units. Data were recorded on a patient observation form that included demographic data, diagnosis of admission to the hospital or intensive care unit (ICU), comorbidity and chronic diseases, location, stage of PU, and Braden Scale score. Acute physiology and chronic health evaluation (APACHE) II score, Glasgow coma score (GCS), PaO2/FiO2 ratio, and albumin level were recorded for ICU patients. Results: A total of 1548 adult patients participated in the study. Of these patients, 177 (11.43%) had PU. The patients with PU had more advanced age, lower body mass index (BMI), and longer duration of hospital and ICU stay (for all P =.001). Evaluation of PU in the first 24 hours after hospital admission and the last PU evaluation time also showed a significant effect (both P =.001). Braden Scale score less than or equal to 13 in the first evaluation after hospital admission increased the risk of PU. Albumin was 2.78 ± 0.57 gm/dL in ICU patients, and albumin level was significantly lower in patients with PU (P =.001). PUs were located mainly in the sacrum (47.59%) and were classified as stage II (42.76%) for all patients. Conclusions: The prevalence of PU is related to the age and severity of patient clinical status, as predicted by the Braden Scale score and APACHE II score, and length of hospital and ICU stay. Low albumin level is also related to development of PUs in ICU patients.
Real-world data from Turkey: Is sofosbuvir/ledipasvir with or without ribavirin treatment for chronic hepatitis c really effective?
(Aves, 2021-02-01) Demirtürk, Neşe; Aygen, Bilgehan; Çelik, İlhami; Mıstık, Reşit; Akhan, Sıla; Barut, Şener; Ural, Onur; Batırel, Ayşe; Şimşek, Funda; Ersöz, Gülden; İnan, Dilara; Kınıklı, Sami; Türker, Nesrin; Bilgin, Hüseyin; Gürbüz, Yunus; Tülek, Necla; Tarakcı, Hüseyin; Yıldız, Orhan; Türkoğlu, Emine; Güzel, Deniz Kamalak; Şimşek, Sümeyra; Tuna, Nazan; Demir, Nazlım Aktuğ; Çağatay, Atahan; Çetinkaya, Rıza Aytaç; Karakeçili, Faruk; Hakyemez, İsmail Necati; Ertem, Günay Tuncer; Örmen, Bahar; Korkmaz, Pınar; Şili, Uluhan; Kuruüzüm, Ziya; Şener, Alper; Özel, Selcan Arslan; Öztürk, Sinan; Süer, Kaya; Çelen, Mustafa Kemal; Konya, Petek; Asan, Ali; Saltoğlu, Neşe; Doğan, Nurhan; Şimşek, Sümeyra; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Enfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Anabilim Dalı.; DTA-4765-2022
Background: In this study, we aimed to investigate the efficacy and safety of sofosbuvir-based therapies in the treatment of chronic hepatitis C in real-world clinical practice.Methods: Data from patients with chronic hepatitis C treated with SOF/LDV +/- RBV or SOF/RBV in 31 centers across Turkey between April 1, 2017, and August 31, 2018, were recorded in a nationwide database among infectious disease specialists. Demographics, clinical, and virological outcomes were analyzed.Results: A total of 552 patients were included in the study. The mean age of the patients was 51.28 +/- 14.2, and 293 (55.8%) were female. The majority had HCV genotype 1b infection (65%), 75.04% of the patients underwent treatment, and non-cirrhosis was present at baseline in 381 patients (72.6%). SOF/LDV +/- RBV treatment was given to 477 patients and 48 patients received SOF/RBV according to HCV genotype. The total SVR12 rate was 99% in all patients. Five patients experienced disease relapse during the study and all of them were genotype 2. In patients infected with HCV GT2, SVR12 was 77.3%. SVR was 100% in all patients infected with other HCV genotypes. All treatments were well tolerated by patients without causing severe adverse events. Side effects and side effects-associated treatment discontinuation rates were 28.2% and 0.4%, respectively. Weakness (13.7%) was the common side effect.Conclusion: The present real-world data of 525 patients with HCV genotypes 1, 1a, 1b, 3, 4, and 5 who underwent SOF/LDV +/- RBV treatment in Turkey demonstrated a high efficacy and safety profile. HCV GT2 patients should be treated with more efficacious treatment.
Real-world data from Turkey: Is sofosbuvir/ledipasvir with or without ribavirin treatment for chronic hepatitis c really effective?
(Aves, 2021-02-01) Demirturk, Nese; Aygen, Bilgehan; Celik, Ilhami; Mistik, Resit; Akhan, Sila; Barut, Sener; Ural, Onur; Batirel, Ayse; Simsek, Funda; Ersoz, Gulden; Inan, Dilara; Kinikli, Sami; Turker, Nesrin; Bilgin, Huseyin; Gurbuz, Yunus; Tülek, Necla; Tarakci, Huseyin; Yildiz, Orhan; Turkoglu, Emine; Guzel, Deniz Kamalak; Şimşek, Sümeyra; Tuna, Nazan; Demir, Nazlim Aktug; Cagatay, Atahan; Cetinkaya, Riza Aytac; Karakecili, Faruk; Hakyemez, Ismail Necati; Ertem, Gunay Tuncer; Ormen, Bahar; Korkmaz, Pinar; Sili, Uluhan; Kuruuzum, Ziya; Sener, Alper; Ozel, Selcan Arslan; Ozturk, Sinan; Suer, Kaya; Celen, Mustafa Kemal; Konya, Petek; Asan, Ali; Saltoglu, Nese; Dogan, Nurhan; Şimşek, Sümeyra; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Enfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Anabilim Dalı.; DTA-4765-2022
Background: In this study, we aimed to investigate the efficacy and safety of sofosbuvir-based therapies in the treatment of chronic hepatitis C in real-world clinical practice.Methods: Data from patients with chronic hepatitis C treated with SOF/LDV +/- RBV or SOF/RBV in 31 centers across Turkey between April 1, 2017, and August 31, 2018, were recorded in a nationwide database among infectious disease specialists. Demographics, clinical, and virological outcomes were analyzed.Results: A total of 552 patients were included in the study. The mean age of the patients was 51.28 +/- 14.2, and 293 (55.8%) were female. The majority had HCV genotype 1b infection (65%), 75.04% of the patients underwent treatment, and non-cirrhosis was present at baseline in 381 patients (72.6%). SOF/LDV +/- RBV treatment was given to 477 patients and 48 patients received SOF/RBV according to HCV genotype. The total SVR12 rate was 99% in all patients. Five patients experienced disease relapse during the study and all of them were genotype 2. In patients infected with HCV GT2, SVR12 was 77.3%. SVR was 100% in all patients infected with other HCV genotypes. All treatments were well tolerated by patients without causing severe adverse events. Side effects and side effects-associated treatment discontinuation rates were 28.2% and 0.4%, respectively. Weakness (13.7%) was the common side effect.Conclusion: The present real-world data of 525 patients with HCV genotypes 1, 1a, 1b, 3, 4, and 5 who underwent SOF/LDV +/- RBV treatment in Turkey demonstrated a high efficacy and safety profile. HCV GT2 patients should be treated with more efficacious treatment.
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-3843-2020