Open Access. Powered by Scholars. Published by Universities.®
- Discipline
Articles 1 - 30 of 148
Full-Text Articles in Entire DC Network
The Sharp Edge Of Immunosuppressive Treatments: Infections, Aybegüm Özşahi̇n, Tuba İlgar, Sudem Mahmutoğlu Çolak, Kübra Akyüz, Meli̇h Gaffar Gözükara, Uğur Kostakoğlu, İlknur Esen Yildiz, Ayşe Ertürk
The Sharp Edge Of Immunosuppressive Treatments: Infections, Aybegüm Özşahi̇n, Tuba İlgar, Sudem Mahmutoğlu Çolak, Kübra Akyüz, Meli̇h Gaffar Gözükara, Uğur Kostakoğlu, İlknur Esen Yildiz, Ayşe Ertürk
Turkish Journal of Medical Sciences
Background and aim: Different side effects, including infections, are encountered in patients receiving anticytokines used for the treatment of severe coronavirus disease 2019 (COVID-19). The aim of this study was to evaluate the infections and the effects of these infections that develop in this patient group. Materials and Methods: This study included 208 patients who were followed-up with the diagnosis of severe COVID-19 in two different hospitals. Patient data were obtained retrospectively from the hospital information system. Results: Of the 208 patients included, 54 were in the anakinra group, and 154 were in the tocilizumab group. Of these patients, 73 …
Do Patients Infected With Human Coronavirus Before The Covid-19 Pandemic Have Less Risk Of Being Infected With Covid-19?, Gamze Şanlidağ İşbi̇len, Ayça Aydin Uysal, Seli̇n Yi̇ği̇t, Özgür Appak, Hi̇lal Si̇pahi̇, Gülendam Bozdayi, Arzu Sayiner, Candan Çi̇çek, Özlem Güzel Tunçcan, Oğuz Reşat Si̇pahi̇
Do Patients Infected With Human Coronavirus Before The Covid-19 Pandemic Have Less Risk Of Being Infected With Covid-19?, Gamze Şanlidağ İşbi̇len, Ayça Aydin Uysal, Seli̇n Yi̇ği̇t, Özgür Appak, Hi̇lal Si̇pahi̇, Gülendam Bozdayi, Arzu Sayiner, Candan Çi̇çek, Özlem Güzel Tunçcan, Oğuz Reşat Si̇pahi̇
Turkish Journal of Medical Sciences
Background/aim: Although seasonal human coronaviruses (HCoVs) have long been recognized as respiratory tract viruses, the newly identified SARS-CoV-2 caused a pandemic associated with severe respiratory failure. We aimed to evaluate the incidence of COVID-19 infection in patients diagnosed in three tertiary teaching hospitals, both with and without prior confirmed HCoV infection, and to compare these cohorts in terms of COVID-19 contraction.Materials and methods: In our study, we examined HCoV PCR-positive cases obtained retrospectively between January 2014 and March 2020 from three University Hospital Microbiology Laboratories (Cohort 1), as well as PCR-negative patients detected in the same PCR cycle as the …
Comparison Of Bulut Index-Beta Method And Global Health Security Index: Results From World Countries, Tevfi̇k Bulut, Mehmet Top, Murat Atan, Burkay Genç
Comparison Of Bulut Index-Beta Method And Global Health Security Index: Results From World Countries, Tevfi̇k Bulut, Mehmet Top, Murat Atan, Burkay Genç
Turkish Journal of Medical Sciences
Background/aimThe Global Health Security Index (GHSI), which is used to assess global health security preparedness level of countries, and Bulut Index-Beta (BI-β) method, developed as a multi-criteria decision-making method, were compared in terms of global health security in the context of world countries. Thus, it is aimed to demonstrate feasibility of BI-β method by testing it on GHSI datasets and then to contribute to methodological development of GHSI.Materials and methodsData set of the study consists of the publicly available GHSI data set, which allows for comparative evaluation of countries. BI-β method and GHSI were used to compare countries in terms …
Comparison Of Radiologic Findings Between Sars-Cov-2 And Other Respiratory Tract Viruses In Critically Ill Children During The Covid-19 Pandemic, Oktay Perk, Tanil Kendi̇rli̇, Emel Uyar, Bi̇rsel Şen Akova, Hati̇ce Albayrak, Hasan Ağin, Ebru Ati̇ke Ongun, Eşe Eda Turanli, Sare Güntülü Şik, Şahi̇n Si̇ncar, Gürkan Bozan, Demet Demi̇rkol, Nazan Ülgen Tekerek, Mey Tali̇p, Arzu Oto, Feyza İnceköy Gi̇rgi̇n, Ferhat Sari, Nuretti̇n Onur Kutlu, Altan Güneş, Ömer Suat Fi̇töz
Comparison Of Radiologic Findings Between Sars-Cov-2 And Other Respiratory Tract Viruses In Critically Ill Children During The Covid-19 Pandemic, Oktay Perk, Tanil Kendi̇rli̇, Emel Uyar, Bi̇rsel Şen Akova, Hati̇ce Albayrak, Hasan Ağin, Ebru Ati̇ke Ongun, Eşe Eda Turanli, Sare Güntülü Şik, Şahi̇n Si̇ncar, Gürkan Bozan, Demet Demi̇rkol, Nazan Ülgen Tekerek, Mey Tali̇p, Arzu Oto, Feyza İnceköy Gi̇rgi̇n, Ferhat Sari, Nuretti̇n Onur Kutlu, Altan Güneş, Ömer Suat Fi̇töz
Turkish Journal of Medical Sciences
Background/aim: This study was planned because the radiological distinction of COVID-19 and respiratory viral panel (RVP)-positive cases is necessary to prioritize intensive care needs and ensure non-COVID-19 cases are not overlooked. With that purpose, the objective of this study was to compare radiologic findings between SARS-CoV-2 and other respiratory airway viruses in critically ill children with suspected COVID-19 disease.Materials and methods: This study was conducted as a multicenter, retrospective, observational, and cohort study in 24 pediatric intensive care units between March 1 and May 31, 2020. SARS-CoV-2- or RVP polymerase chain reaction (PCR)-positive patients’ chest X-ray and thoracic computed tomography …
Clinical Characteristics And Disease Course Before And After Sars-Cov-2 Infection In A Large Cohort Of Systemic Sclerosis Patients, Aslıhan Avanoğlu Güler, Büşra Özçi̇men, Mesude Seda Aydoğdu, Alper Sari, Aliyeva Numune, Nazife Tüzün Ersan, Seda Çolak, Hazan Karadeni̇z, İbrahim Vasi̇, Hamit Küçük, Yasemin Yalçinkaya, Abdulsamet Erden, Mehmet Kayaalp, Mehmet Akif Öztürk, Berna Göker, Ahmet Omma, Sedat Yilmaz, Süleyman Serdar Koca, Murat İnanç, Ali Akdoğan, Abdurrahman Tufan
Clinical Characteristics And Disease Course Before And After Sars-Cov-2 Infection In A Large Cohort Of Systemic Sclerosis Patients, Aslıhan Avanoğlu Güler, Büşra Özçi̇men, Mesude Seda Aydoğdu, Alper Sari, Aliyeva Numune, Nazife Tüzün Ersan, Seda Çolak, Hazan Karadeni̇z, İbrahim Vasi̇, Hamit Küçük, Yasemin Yalçinkaya, Abdulsamet Erden, Mehmet Kayaalp, Mehmet Akif Öztürk, Berna Göker, Ahmet Omma, Sedat Yilmaz, Süleyman Serdar Koca, Murat İnanç, Ali Akdoğan, Abdurrahman Tufan
Turkish Journal of Medical Sciences
The objective of this study is to evaluate the clinical presentations and adverse outcomes of Coronavirus Disease 2019 (COVID-19) in patients with systemic sclerosis (SSc) and assess the impact of SSc features on the clinical course of COVID-19.Materials and methods: In this multicenter, retrospective study, SSc patients with COVID-19 were included. Clinical features of SSc, along with detailed COVID-19 data, were extracted from medical records and patient interviews.Results: The study included 112 patients (mean age 51.4 ± 12.8 years; 90.2% female). SSc-associated interstitial lung disease (ILD) was evident in 57.1% of the patients. The findings revealed hospitalization in 25.5%, respiratory …
Covid-19 In Cancer Patients: Patient Characteristics And Outcomes In The Post-Covid-19 Vaccination Period, Gülşen İskender, Duygu Mert, Göknur Yapar Toros, Funda Yilmaz, Ersi̇n Bozan, Semra Tunçbi̇lek, Ömür Berna Çakmak Öksüzoğlu, Fevzi̇ Altuntaş, Mustafa Ertek
Covid-19 In Cancer Patients: Patient Characteristics And Outcomes In The Post-Covid-19 Vaccination Period, Gülşen İskender, Duygu Mert, Göknur Yapar Toros, Funda Yilmaz, Ersi̇n Bozan, Semra Tunçbi̇lek, Ömür Berna Çakmak Öksüzoğlu, Fevzi̇ Altuntaş, Mustafa Ertek
Turkish Journal of Medical Sciences
Background/aim:It wasaimed herein to investigate coronavirus disease (COVID-19) in cancer patients and compare hematological and solid organ cancer patients in terms of the course and outcome of this disease. Materials and methods:Data from cancer patients with laboratory-confirmed COVID-19 infection were analyzed retrospectively. Risk factors for poor prognosis and the effect of vaccination on the clinical outcomes of the patients were evaluated. Results:A total of 403 cancer patients who were diagnosed with COVID-19 between March 1st, 2021, and November 30th, 2022, were included, of whom 329 (81.6%) had solid and 74 (18.4%) had hematological cancers. Hospitalization and intensive care unit (ICU) …
Positive Effects Of Health Behaviors Acquired During The Covid-19 Pandemic Process On The Prevention Of Other Infectious Diseases, Asi̇ye Çi̇ğdem Şi̇mşek, Turan Buzgan, Fatma Nur Baran Aksakal, Şuayip Bi̇ri̇nci̇, Hülya Şi̇ri̇n
Positive Effects Of Health Behaviors Acquired During The Covid-19 Pandemic Process On The Prevention Of Other Infectious Diseases, Asi̇ye Çi̇ğdem Şi̇mşek, Turan Buzgan, Fatma Nur Baran Aksakal, Şuayip Bi̇ri̇nci̇, Hülya Şi̇ri̇n
Turkish Journal of Medical Sciences
Background/aim: It was aimed to evaluate the positive effects of health behaviors (general hygiene, wearing face masks, physical distancing, and travel restrictions) acquired during the coronavirus disease 2019 (COVID-19) pandemic on the prevention of other infectious diseases in Ankara Province, Türkiye. Materials and methods: This study was designed retrospectively. Among the notifiable group A infectious diseases, acute intestinal infections (AIIs) with International Classification of Diseases, Tenth Revision diagnosis codes A09 (diarrhea and gastroenteritis presumed to be of infectious origin), R11 (nausea and vomiting), and K52 (other noninfectious gastroenteritis and colitis) , as well as influenza, tuberculosis, measles, varicella, malaria, and …
Clinical And Laboratory Features In Health Care Volunteers With Inactivated Sars-Cov-2 Vaccination, Zhijie Li, Yafang Wan, Lanlan Xu, Wenjia Zhang, Yu Zhang, Pu Liao
Clinical And Laboratory Features In Health Care Volunteers With Inactivated Sars-Cov-2 Vaccination, Zhijie Li, Yafang Wan, Lanlan Xu, Wenjia Zhang, Yu Zhang, Pu Liao
Turkish Journal of Medical Sciences
Background/aim: To better optimize the inactivated vaccine-induced immune response and improve vaccine protection efficiency, a preliminary study was conducted on the influencing factors of producing neutralizing antibody (NAb) titers against the inactivated coronavirus disease 2019 (COVID-19) vaccine. Materials and methods: A total of 91 health care volunteers were enrolled from the Immunology Division of the Laboratory Department of Chongqing General Hospital from February to March 2021. The study had a cross-sectional design. All of the volunteers were scheduled to receive a complete dose regimen of the inactivated severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine and the vaccination interval between …
Alterations In B And Nk Cells Highly Correlate With Disease Severity In Children With Covid-19, Ezgi̇ Topyildiz, Nesli̇han Karaca, Razi̇ye Burcu Taşkin, Ayşe Aygün, Zümrüt Şahbudak Bal, Eylem Ulaş Saz, Nuri̇ Zafer Kurugöl, Neci̇l Kütükçüler, Güzi̇de Aksu
Alterations In B And Nk Cells Highly Correlate With Disease Severity In Children With Covid-19, Ezgi̇ Topyildiz, Nesli̇han Karaca, Razi̇ye Burcu Taşkin, Ayşe Aygün, Zümrüt Şahbudak Bal, Eylem Ulaş Saz, Nuri̇ Zafer Kurugöl, Neci̇l Kütükçüler, Güzi̇de Aksu
Turkish Journal of Medical Sciences
Background/aim: Children with coronavirus disease 2019 (COVID-19) present milder symptoms than adults and are at lower risk of hospitalization and life-threatening complications. However, the kinetics of lymphocyte subsets and serum immunoglobulins in the peripheral blood during COVID-19 infection remains unclear. In this study, it was aimed to determine the changes in hematological and immunological parameters, especially in the lymphocyte subsets, in the peripheral blood of children with different COVID-19 disease severity. Materials and methods: The study was planned as a prospective cohort and included 68 children aged 0?18 years who were admitted to Ege University Faculty of Medicine Department of …
Which Sequence Should Be Used In The Thorax Magnetic Resonance Imaging Of Covid-19: A Comparative Study, Ayşe Şule Ateş, Burak Yağdiran, Onur Taydaş, Ömer Faruk Ateş
Which Sequence Should Be Used In The Thorax Magnetic Resonance Imaging Of Covid-19: A Comparative Study, Ayşe Şule Ateş, Burak Yağdiran, Onur Taydaş, Ömer Faruk Ateş
Turkish Journal of Medical Sciences
Background and aim: To evaluate and compare magnetic resonance imaging (MRI) sequences that could potentially be used in the diagnosis of coronavirus disease 2019 (COVID-19). Materials and methods: Included in the study were 42 patient who underwent thorax computed tomography (CT) for COVID-19 pneumonia and thorax MRI for any reason within 24 h after CT. The T2-weighted fast spin echo periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) (T2W-FSE-P), fast imaging employing steady-state acquisition, T2 fat-saturated FSE, axial T1 liver acquisition with volume acceleration (LAVA) and single-shot FSE images were compared in terms of their ability to show COVID-19 …
Postauricular Linear Basal Cell Carcinomas Related To Medical Mask Cords: A Possible Association, Bengü Ni̇sa Akay, Di̇lan Kizilirmak, Aylin Heper
Postauricular Linear Basal Cell Carcinomas Related To Medical Mask Cords: A Possible Association, Bengü Ni̇sa Akay, Di̇lan Kizilirmak, Aylin Heper
Turkish Journal of Medical Sciences
Linear basal cell carcinoma (BCC) is a distinct clinical morphological variant of BCC. Although it has been speculated that trauma and the Koebner phenomenon may be linked to linear BCC, the pathophysiology has not yet been shown. Herein, 5 cases of BCC were presented that developed in the postauricular region as a result of trauma caused by the cords of the medical face masks worn during the COVID-19 pandemic.
Evaluation Of Local And Systemic Side Effects Of Turkovac Vaccine In Adults, Bülent Nuri̇ Kalayci, Doğu Karahan
Evaluation Of Local And Systemic Side Effects Of Turkovac Vaccine In Adults, Bülent Nuri̇ Kalayci, Doğu Karahan
Turkish Journal of Medical Sciences
Background/aim: COVID-19 is a respiratory disease that caused a pandemic after reportedly emerging from Wuhan, China, in December 2019. Different types of COVID-19 vaccines such as viral vectors, mRNA, and inactivated vaccines have been produced since the beginning of the pandemic. Turkovac is an inactive COVID-19 vaccine developed and produced in Türkiye. We conducted our study to investigate the local and systemic side effects of the Turkovac vaccine. Materials and methods: A cross-sectional survey-based study was conducted to collect data on the postvaccine side effects in people aged over 18 who were vaccinated with Turkovac, between March and June 2022, …
Covid-19 Modeling Based On Real Geographic And Population Data, Emi̇r Baysazan, Ahmet Ni̇hat Berker, Hasan Mandal, Hakan Kaygusuz
Covid-19 Modeling Based On Real Geographic And Population Data, Emi̇r Baysazan, Ahmet Ni̇hat Berker, Hasan Mandal, Hakan Kaygusuz
Turkish Journal of Medical Sciences
Background/aim: Intercity travel is one of the most important parameters for combating a pandemic. The ongoing COVID-19 pandemic has resulted in different computational studies involving intercity connections. In this study, the effects of intercity connections during an epidemic such as COVID-19 are evaluated using a new network model. Materials and methods: This model considers the actual geographic neighborhood and population density data. This new model is applied to actual Turkish data by means of provincial connections and populations. A Monte Carlo algorithm with a hybrid lattice model is applied to a lattice with 8802 data points. Results: Around Monte Carlo …
Sars-Cov-2 Main Protease Targeting Potent Fluorescent Inhibitors: Repurposing Thioxanthones, Gönül Saadet Batibay, Eyüp Meti̇n
Sars-Cov-2 Main Protease Targeting Potent Fluorescent Inhibitors: Repurposing Thioxanthones, Gönül Saadet Batibay, Eyüp Meti̇n
Turkish Journal of Chemistry
The coronavirus disease, COVID-19, is the major focus of the whole world due to insufficient treatment options. It has spread all around the world and is responsible for the death of numerous human beings. The future consequences for the disease survivors are still unknown. Hence, all contributions to understand the disease and effectively inhibit the effects of the disease have great importance. In this study, different thioxanthone based molecules, which are known to be fluorescent compounds, were selectively chosen to study if they can inhibit the main protease of SARS-CoV-2 using various computational tools. All candidate ligands were optimized, molecular …
A Type-2 Fuzzy Rule-Based Model For Diagnosis Of Covid-19, İhsan Şahi̇n, Erhan Akdoğan, Mehmet Emi̇n Aktan
A Type-2 Fuzzy Rule-Based Model For Diagnosis Of Covid-19, İhsan Şahi̇n, Erhan Akdoğan, Mehmet Emi̇n Aktan
Turkish Journal of Electrical Engineering and Computer Sciences
In this study, a type-2 fuzzy logic-based decision support system comprising clinical examination and blood test results that health professionals can use in addition to existing methods in the diagnosis of COVID-19 has been developed. The developed system consists of three fuzzy units. The first fuzzy unit produces COVID-19 positivity as a percentage according to the respiratory rate, loss of smell, and body temperature values, and the second fuzzy unit according to the C-reactive protein, lymphocyte, and D-dimer values obtained as a result of the blood tests. In the third fuzzy unit, the COVID-19 positivity risks according to the clinical …
Developing A Fake News Identification Model With Advanced Deep Languagetransformers For Turkish Covid-19 Misinformation Data, Mehmet Bozuyla, Akin Özçi̇ft
Developing A Fake News Identification Model With Advanced Deep Languagetransformers For Turkish Covid-19 Misinformation Data, Mehmet Bozuyla, Akin Özçi̇ft
Turkish Journal of Electrical Engineering and Computer Sciences
The massive use of social media causes rapid information dissemination that amplifies harmful messages such as fake news. Fake-news is misleading information presented as factual news that is generally used to manipulate public opinion. In particular, fake news related to COVID-19 is defined as 'infodemic' by World Health Organization. An infodemic is a misleading information that causes confusion which may harm health. There is a high volume of misinformation about COVID-19 that causes panic and high stress. Therefore, the importance of development of COVID-19 related fake news identification model is clear and it is particularly important for Turkish language from …
A Covid-19 First Evaluation Clinic At A University Hospital In Turkey, Gülçi̇n Telli̇ Di̇zman, Gökhan Metan, Çağlayan Merve Ayaz Ceylan, Hayri̇ye Altunay, Mertcan Uzun, Gamze Gürsoy, Zahi̇t Taş, Gi̇zem Karahan, Fari̇da Ahmadova, Tuğba Saricaoğlu, Zeynep Cansu Çalişkan, Alpaslan Alp, Meli̇ha Çağla Sönmezer, Ahmet Çağkan İnkaya, Ahmet Görkem Er
A Covid-19 First Evaluation Clinic At A University Hospital In Turkey, Gülçi̇n Telli̇ Di̇zman, Gökhan Metan, Çağlayan Merve Ayaz Ceylan, Hayri̇ye Altunay, Mertcan Uzun, Gamze Gürsoy, Zahi̇t Taş, Gi̇zem Karahan, Fari̇da Ahmadova, Tuğba Saricaoğlu, Zeynep Cansu Çalişkan, Alpaslan Alp, Meli̇ha Çağla Sönmezer, Ahmet Çağkan İnkaya, Ahmet Görkem Er
Turkish Journal of Medical Sciences
Background/aim: We aimed to analyze the usefulness of such a reserved area for the admission of the patients' symptoms suggesting COVID-19 and compare the demographic and clinical characteristics of the patients with COVID-19 and without COVID-19 who were admitted to C1 during the first month of the COVID-19 outbreak in our hospital. Materials and methods: A new area was set up in Hacettepe University Adult Hospital to limit the contact of COVID-19 suspicious patients with other patients, which was named as COVID-19 First Evaluation Outpatient Clinic (C1). C1 had eight isolation rooms and two sampling rooms for SARS-CoV-2 polymerase-chain-reaction (PCR). …
Evaluation Of Clinical And Laboratory Findings In Severe Group Covid-19 Pregnants Without Comorbidity, Fatma Bozkurt, Ömer Çoşkun, Sevda Yeleç, Muhammed Bekçi̇başi, Muhammet Asena, İhsan Bağli
Evaluation Of Clinical And Laboratory Findings In Severe Group Covid-19 Pregnants Without Comorbidity, Fatma Bozkurt, Ömer Çoşkun, Sevda Yeleç, Muhammed Bekçi̇başi, Muhammet Asena, İhsan Bağli
Turkish Journal of Medical Sciences
Background/aim: COVID - 19 disease may be seen with different clinical presentations in pregnant women. Comorbid diseases are important factors affecting the progression of this disease. In this study, we aimed to evaluate the clinical and laboratory findings in pregnant women with COVID - 19 who had no comorbid disease. Material and methods: This retrospective designed study included 217 patients with Covid PCR positive in typically COVID - 19 clinic. The patients were classified into asymptomatic, nonsevere, and severe disease groups. The symptoms, laboratory results, hospital follow- ups and intensive care records of the patients and the findings of new …
The Role Of Cd8+ Regulatory T Cells And B Cell Subsets In Patients With Covid-19, Hülya Uçaryilmaz, Di̇lek Ergün, Hüsametti̇n Vatansev, Hande Köksal, Onur Ural, Uğur Arslan, Hasi̇be Artaç
The Role Of Cd8+ Regulatory T Cells And B Cell Subsets In Patients With Covid-19, Hülya Uçaryilmaz, Di̇lek Ergün, Hüsametti̇n Vatansev, Hande Köksal, Onur Ural, Uğur Arslan, Hasi̇be Artaç
Turkish Journal of Medical Sciences
Background/aim: Coronavirus disease 2019 (COVID-19) has a wide clinical spectrum from asymptomatic to mild, moderate, and severe cases. There are still many unknowns about the role of immunoregulatory mechanisms in COVID-19. We aimed to study regulatory T cells (Tregs) and B cell subsets and evaluate their correlations with severity of COVID-19. Materials and methods: In total, 50 patients with COVID-19 confirmed by PCR (mean age = 49.9 ± 12.8 years) and 40 healthy control (mean age = 47.9 ± 14.7 years) were included in this study. The patients were classified as 14 mild (median age = 35.5 [24-73] years), 22 …
An Evaluation Of The Results Of Convalescent Plasma Therapy Applied To Pregnant Womendiagnosed As Covid-19- Positive In A Pandemic Center: A Prospective Cohort Study, Seyi̇t Ahmet Erol, Atakan Tanaçan, Hakan Apaydin, Şule Göncü Ayhan, Deni̇z Oluklu, Derya Uyan Hendem, Serpi̇l Ünlü, Abdulsamet Erden, Özlem Moraloğlu Teki̇n, Ahmet Omma, İhsan Ateş, Orhan Küçükşahi̇n, Di̇lek Şahi̇n
An Evaluation Of The Results Of Convalescent Plasma Therapy Applied To Pregnant Womendiagnosed As Covid-19- Positive In A Pandemic Center: A Prospective Cohort Study, Seyi̇t Ahmet Erol, Atakan Tanaçan, Hakan Apaydin, Şule Göncü Ayhan, Deni̇z Oluklu, Derya Uyan Hendem, Serpi̇l Ünlü, Abdulsamet Erden, Özlem Moraloğlu Teki̇n, Ahmet Omma, İhsan Ateş, Orhan Küçükşahi̇n, Di̇lek Şahi̇n
Turkish Journal of Medical Sciences
Background/aim: Convalescent plasma (CP) might be an additional treatment modality in COVID-19. The aim of this study was to compare CP-related clinical characteristics and perinatal outcomes in pregnant women with mild or moderate-severe COVID-19. Materials and methods: This prospective cohort study included 36 pregnant women (12 mild and 24 moderate-severe), who underwent CP therapy. The CP obtained from recently recovered donors was transfused to patients together with maximum supportive care and antiviral agents. The groups were then compared in respect of clinical characteristics, laboratory parameters, obstetric complications, and neonatal outcomes. Results: Significant differences were determined between the groups in respect …
Magnetic Resonance Imaging Findings In Covid-19-Related Anosmia, Hüseyi̇n Çeti̇n, Ayşe Şule Ateş, Ogün Taydaş, Bahri̇ Elmas, Ertuğrul Güçlü
Magnetic Resonance Imaging Findings In Covid-19-Related Anosmia, Hüseyi̇n Çeti̇n, Ayşe Şule Ateş, Ogün Taydaş, Bahri̇ Elmas, Ertuğrul Güçlü
Turkish Journal of Medical Sciences
Background/aim: The coronavirus disease 2019 (COVID-19) mostly manifests with fever, shortness of breath, and cough, has also been found to cause some neurological symptoms, such as anosmia and ageusia. The aim of the study was to present the magnetic resonance imaging (MRI) findings of patients with anosmia-hyposmia symptoms and to discuss potential mechanisms in light of these findings. Materials and methods: Of the 2412 patients diagnosed with COVID-19-related pneumonia (RT-PCR at least once + clinically confirmed) between March and December 2020, 15 patients underwent olfactory MRI to investigate the cause of ongoing anosmia/ hyposmia symptoms were included in the study. …
Evaluation Of Metabolic Changes In Fdg Pet/Ct Imaging After Mrna-Based Covid-19 Vaccination, Serkan İşgören, Gi̇zem Köroğlu, Gözde Dağliöz Görür, Hakan Demi̇r
Evaluation Of Metabolic Changes In Fdg Pet/Ct Imaging After Mrna-Based Covid-19 Vaccination, Serkan İşgören, Gi̇zem Köroğlu, Gözde Dağliöz Görür, Hakan Demi̇r
Turkish Journal of Medical Sciences
Background/aim: It isimportant to evaluate the vaccine-related metabolic changes on FDG PET/CT to avoid confusing results. We here aimed to assess the frequency and intensity of regional and systemic metabolic PET/CT changes of patients who received the mRNAbased COVID-19 vaccine (BNT162b2-Pfizer/BioNTech) and to analyze possible factors affecting these changes. Materials and methods: Among the patients who underwent FDG PET/CT for any indication in our department between July 2021 and December 2021, 129 volunteer patients with a history of COVID-19 vaccination were included in this prospective observational study. Bilateral axillary lymph nodes, ipsilateral deltoid muscle, bone marrow, spleen, thyroid, and liver …
Synthesis, Characterization, Computational Analyses, In Silico Admet Studies, And Inhibitory Action Against Sars-Cov-2 Main Protease (Mpro) Of A Schiff Base, Songül Şahi̇n, Necmi̇ Dege
Synthesis, Characterization, Computational Analyses, In Silico Admet Studies, And Inhibitory Action Against Sars-Cov-2 Main Protease (Mpro) Of A Schiff Base, Songül Şahi̇n, Necmi̇ Dege
Turkish Journal of Chemistry
COVID-19 disease caused by the severe acute respiratory syndrome coronavirus (SARS-CoV-2) has struck the whole world and raised severe health, economic, and social problems. Many scientists struggled to find a vaccine or an antiviral drug. Eventually, both vaccines and recommended drugs, repurposed drugs, or drug combinations were found, but new strains of SARS-CoV-2 continue to threaten human life and health. As part of the fight against COVID-19 disease, this study involves an in silico molecular docking analysis on the main protease (Mpro) of SARS-CoV-2. To this aim, a Schiff base compound was synthesized and characterized using spectroscopic techniques, including X-ray, …
Adoptive T-Cell Therapies To Overcome T Cell-Dependent Immune Dysregulations In Covid-19, Sevgi̇ Kalkanli Taş, Merve Sai̇de Uzunoğlu, Ayli̇n Seher Uzunoğlu, Duygu Kirkik, Derya Altunkanat, Nevi̇n Kalkanli
Adoptive T-Cell Therapies To Overcome T Cell-Dependent Immune Dysregulations In Covid-19, Sevgi̇ Kalkanli Taş, Merve Sai̇de Uzunoğlu, Ayli̇n Seher Uzunoğlu, Duygu Kirkik, Derya Altunkanat, Nevi̇n Kalkanli
Turkish Journal of Biology
Coronavirus disease 2019 (COVID-19) pandemic has been an important global interest that affected millions of people, and it requires a deep investigation of the disease immunology for developing further therapeutic applications. Adoptive T cell therapy promises to address T cell-dependent immune dysregulation in COVID-19 patients by the generation of specific T cell clones against virus-specific antigens. Additionally, targeting B cell-dependent protection through COVID-19 vaccines, which have been developed in the recent year, possessed sufficient prevention for spreading the virus, since the cases and deaths related to COVID-19 tend to decrease after the vaccination. However, adoptive cell therapies are now encouraging …
Development A Novel Multi-Epitope Dna Vaccine Against Human Sars Coronavirus-2: An Immunoinformatics Designing Study, Afshin Samimi Nemati, Sako Mirzaie, Mohammad Reza Masoumian, Fatemeh Sheikhi, Mostafa Jamalan
Development A Novel Multi-Epitope Dna Vaccine Against Human Sars Coronavirus-2: An Immunoinformatics Designing Study, Afshin Samimi Nemati, Sako Mirzaie, Mohammad Reza Masoumian, Fatemeh Sheikhi, Mostafa Jamalan
Turkish Journal of Biology
Human SARS coronavirus 2 (SARS-CoV-2) causes the current global COVID-19 pandemic. The production of an efficient vaccine against COVID-19 is under heavy investigation. In this study, we have designed a novel multiepitope DNA vaccine against SARS-CoV-2 using reverse vaccinology and DNA vaccine approaches. Applying these strategies led to reduce the time and costs of vaccine development and also improve the immune protective characteristics of the vaccine. For this purpose, epitopes of nucleocapsid, membrane glycoprotein, and ORF8 proteins of SARS-CoV-2 chose as targets for B and T-cell receptors. Accordingly, DNA sequences of selected epitopes have optimized for protein expression in the …
A Systematic Review Of Rdrp Of Sars-Cov-2 Through Artificial Intelligence And Machine Learning Utilizing Structure-Based Drug Design Strategy, Fariha Imtiaz, Mustafa Kamal Pasha
A Systematic Review Of Rdrp Of Sars-Cov-2 Through Artificial Intelligence And Machine Learning Utilizing Structure-Based Drug Design Strategy, Fariha Imtiaz, Mustafa Kamal Pasha
Turkish Journal of Chemistry
Since the coronavirus disease has been declared a global pandemic, it had posed a challenge among researchers and raised common awareness and collaborative efforts towards finding the solution. Caused by severe acute respiratory coronavirus syndrome-2 (SARS-CoV-2), coronavirus drug design strategy needs to be optimized. It is understandable that cognizance of the pathobiology of COVID-19 can help scientists in the development and discovery of therapeutically effective antiviral drugs by elucidating the unknown viral pathways and structures. Considering the role of artificial intelligence and machine learning with its advancements in the field of science, it is rational to use these methods which …
Effect Of Tocilizumab On Intensive Care Patients With Covid-19 Pneumonia, A Retrospective Cohort Study, Mehtap Pehli̇vanlar Küçük, Ahmet Oğuzhan Küçük, Ayşegül Pehli̇vanlar, Emi̇ne Sevi̇l Ayaydin Mürtezaoğlu, Kadi̇r Çoban, Gamze Kiliç, Olcay Ayçi̇çek, Funda Öztuna, Yilmaz Bülbül, Tevfi̇k Özlü
Effect Of Tocilizumab On Intensive Care Patients With Covid-19 Pneumonia, A Retrospective Cohort Study, Mehtap Pehli̇vanlar Küçük, Ahmet Oğuzhan Küçük, Ayşegül Pehli̇vanlar, Emi̇ne Sevi̇l Ayaydin Mürtezaoğlu, Kadi̇r Çoban, Gamze Kiliç, Olcay Ayçi̇çek, Funda Öztuna, Yilmaz Bülbül, Tevfi̇k Özlü
Turkish Journal of Medical Sciences
Backround/aim: In this study, the efficacy of an IL-6 antagonist, Tocilizumab, administered in the early period was studied in intensive care patients with COVID-19 pneumonia followed by hypoxic and systemic inflammation not receiving mechanical ventilation support. Materials and methods: Patients with COVID-19 pneumonia who have signs of hypoxia and systemic inflammation and/or who have acute bilateral infiltrates on chest radiograph and who received tocilizumab treatment were compared with the patients who received standard medical therapy. Patients who were followed up with COVID-19 pneumonia and respiratory failure between March 2020 and March 2021 were retrospectively evaluated in the study. A 400 …
Remdesivir Treatment For Patients With Moderate To Severe Covid-19, İmran Hasanoğlu, Hati̇ce Rahmet Güner, İlhami̇ Çeli̇k, Fi̇kret Kanat, Ayşe Batirel, Gülçi̇n Telli̇ Di̇zman, Esma Eryilmaz Eren, Di̇lek Yildiz Sevgi̇, İlkay Bozkurt, Kadri̇ye Kart Yaşar, Sevtap Şenoğlu, Esra Kazak, Ridvan Karaali̇, Aysel Kocagül Çeli̇kbaş, Hüsnü Pullukçu
Remdesivir Treatment For Patients With Moderate To Severe Covid-19, İmran Hasanoğlu, Hati̇ce Rahmet Güner, İlhami̇ Çeli̇k, Fi̇kret Kanat, Ayşe Batirel, Gülçi̇n Telli̇ Di̇zman, Esma Eryilmaz Eren, Di̇lek Yildiz Sevgi̇, İlkay Bozkurt, Kadri̇ye Kart Yaşar, Sevtap Şenoğlu, Esra Kazak, Ridvan Karaali̇, Aysel Kocagül Çeli̇kbaş, Hüsnü Pullukçu
Turkish Journal of Medical Sciences
Background/aim: Remdesivir, which was first developed for the treatment of Ebola disease but failed to meet expectations, has become hope in the fight against the COVID-19 pandemic. This study aimed to evaluate risk factors for mortality and prognosis of adult moderate/severe COVID-19 patients treated with remdesivir, and safety and tolerability of 5 days of remdesivir treatment. Materials and methods: This multicenter prospective observational study was conducted in 14 centers in Turkey. Pregnancy or breastfeeding, multiorgan failure, or usage of vasopressors for septic shock, ALT > 5 × the upper limit of the normal range, or eGRF
Comparison Of Anakinra And Tocilizumab In Management Of Severe Covid-19: A Retrospective Cohort Study, Orhan Küçükşahi̇n, Abdulsamet Erden, Özlem Karakaş, Serdar Can Güven, Berkan Armağan, Enes Seyda Şahi̇ner, Osman İnan, Ali̇ Can Kurti̇pek, Emi̇n Gemci̇oğlu, Selma Karaahmetoğlu, Sema Turan, Seval İzdeş, Deni̇z Erdem, Adalet Aypak, Müge Ayhan
Comparison Of Anakinra And Tocilizumab In Management Of Severe Covid-19: A Retrospective Cohort Study, Orhan Küçükşahi̇n, Abdulsamet Erden, Özlem Karakaş, Serdar Can Güven, Berkan Armağan, Enes Seyda Şahi̇ner, Osman İnan, Ali̇ Can Kurti̇pek, Emi̇n Gemci̇oğlu, Selma Karaahmetoğlu, Sema Turan, Seval İzdeş, Deni̇z Erdem, Adalet Aypak, Müge Ayhan
Turkish Journal of Medical Sciences
Background/aim: Studies regarding effectiveness of anakinra and tocilizumab treatments in coronavirus disease 2019 (COVID-19) have contradictory results. Furthermore, there is scarce comparative data regarding superiority of any agent. To further elucidate any superiority between these two agents, we retrospectively investigated and compared outcomes in hospitalized COVID-19 patients of our inpatient cohort who received anakinra or tocilizumab. Materials and methods: This study was designed as a single-center, retrospective, cross-sectional cohort study. Hospitalized patients with confirmed diagnosis of COVID-19 who had Brescia-COVID respiratory severity scale score ?3 and hyperinflammation (defined as elevation of C reactive protein ?50 g/L or ferritin ?700 ng/mL) …
The Effect Of Frailty On The Development Of Acute Kidney Injury In Critically-Ill Geriatric Patients With Covid-19, Murat Küçük, Bi̇şar Ergün, Mehmet Nuri̇ Yakar, Özer Ural Çakici, Erdem Yaka, Bi̇lgi̇n Cömert, Ali̇ Necati̇ Gökmen, Begüm Ergan
The Effect Of Frailty On The Development Of Acute Kidney Injury In Critically-Ill Geriatric Patients With Covid-19, Murat Küçük, Bi̇şar Ergün, Mehmet Nuri̇ Yakar, Özer Ural Çakici, Erdem Yaka, Bi̇lgi̇n Cömert, Ali̇ Necati̇ Gökmen, Begüm Ergan
Turkish Journal of Medical Sciences
Background/aim: Acute kidney injury is strongly associated with mortality in critically ill patients with coronavirus disease 2019 (COVID-19); however, age-related risk factors for acute kidney injury are not clear yet. In this study, it was aimed to evaluate the effects of clinical factors on acute kidney injury development in an elderly COVID-19 patients. Materials and methods: Critically ill patients (?65years) with COVID-19 admitted to the intensive care unit were included in the study. Primary outcome of the study was the rate of acute kidney injury, and secondary outcome was to define the effect of frailty and other risk factors on …