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Guler E, Arikan A, Sultanoglu N, Suer K, Sanlidag T, Sayan M. Molecular Epidemiology of HIV-1 Subtypes and Primary Antiretroviral Resistance Profiles in Northern Cyprus: First Data Series. AIDS Res Hum Retroviruses 2024. [PMID: 38366753 DOI: 10.1089/aid.2023.0021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024] Open
Abstract
The distribution of human immunodeficiency virus-1 (HIV-1) subtypes indicates difference from region to region and in risk groups acquiring the disease worldwide. Although subtype C is more in terms of total cases, subtype B is dominant in certain regions, especially in western and central Europe. Molecular epidemiological studies are essential for the control, effective treatment, and understanding in transmission routes of HIV-1 infection. This study aims to determine the molecular epidemiology and antiretroviral drug resistance profiles of HIV-1 in northern Cyprus. The study involved 71 naive HIV-positive patients diagnosed in northern Cyprus between 2016 and 2022. HIV-1 subtypes and circulating recombinant forms (CRFs) were identified by phylogenetic analysis (neighbor-joining method) of pol gene sequences. Drug resistance mutations were analyzed using the World Health Organization (WHO) lists of mutations for surveillance. The Stanford University HIVdb program was used to interpret drug resistance mutations. In our study, 40 of 71 samples were successfully sequenced. Subtype B of HIV-1 was dominant with a rate of 52.5%, followed by CRF02_AG (20%) and G (7.5%) subtypes. The rate of subtype B (71.4%) in northern Cyprus was significantly higher than in the other country of origin (p = .028). Antiretroviral drug resistance was found in 15% of the sequenced serum samples. Nucleoside/nucleotide reverse transcriptase inhibitor (NRTI), non-nucleoside nucleotide reverse transcriptase inhibitor (NNRTI), and protease inhibitor (PI) resistance rates were 10% (4/40), 7.5% (3/40), and 2.5% (1/40), respectively. According to the results, it is noteworthy that the dominant subtype circulating in northern Cyprus is the B subtype, and CRFs were detected at a higher rate than expected.
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Affiliation(s)
- Emrah Guler
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, European University of Lefke, Lefke, Mersin-10, Turkey
| | - Ayse Arikan
- DESAM Research Institute, Near East University, Nicosia, Mersin-10, Turkey
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Mersin-10, Turkey
| | - Nazife Sultanoglu
- DESAM Research Institute, Near East University, Nicosia, Mersin-10, Turkey
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Mersin-10, Turkey
| | - Kaya Suer
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Mersin-10, Turkey
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, Nicosia, Mersin-10, Turkey
| | - Murat Sayan
- DESAM Research Institute, Near East University, Nicosia, Mersin-10, Turkey
- Clinical Laboratory, PCR Unit, Kocaeli University Hospital, Kocaeli University, Izmit, Turkey
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2
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Abobakr M, Uzun B, Uzun Ozsahin D, Sanlidag T, Arikan A. Assessment of UTI Diagnostic Techniques Using the Fuzzy-PROMETHEE Model. Diagnostics (Basel) 2023; 13:3421. [PMID: 37998557 PMCID: PMC10670649 DOI: 10.3390/diagnostics13223421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/18/2023] [Accepted: 10/20/2023] [Indexed: 11/25/2023] Open
Abstract
Accurate diagnosis of urinary tract infections (UTIs) is important as early diagnosis increases treatment rates, reduces the risk of infection and disease spread, and prevents deaths. This study aims to evaluate various parameters of existing and developing techniques for the diagnosis of UTIs, the majority of which are approved by the FDA, and rank them according to their performance levels. The study includes 16 UTI tests, and the fuzzy preference ranking organization method was used to analyze the parameters such as analytical efficiency, result time, specificity, sensitivity, positive predictive value, and negative predictive value. Our findings show that the biosensor test was the most indicative of expected test performance for UTIs, with a net flow of 0.0063. This was followed by real-time microscopy systems, catalase, and combined LE and nitrite, which were ranked second, third, and fourth with net flows of 0.003, 0.0026, and 0.0025, respectively. Sequence-based diagnostics was the least favourable alternative with a net flow of -0.0048. The F-PROMETHEE method can aid decision makers in making decisions on the most suitable UTI tests to support the outcomes of each country or patient based on specific conditions and priorities.
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Affiliation(s)
- Mariam Abobakr
- Department of Medical Microbiology and Clinical Microbiology, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
| | - Berna Uzun
- Department of Mathematics, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
| | - Dilber Uzun Ozsahin
- Department of Medical Diagnostic Imaging, Collage of Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates;
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
- Operational Research Center in Healthcare, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey;
| | - Ayse Arikan
- Department of Medical Microbiology and Clinical Microbiology, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
- DESAM Research Institute, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey;
- Department of Medical Microbiology and Clinical Microbiology, Kyrenia University, TRNC Mersin 10, Kyrenia 99320, Turkey
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3
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Hoti Q, Akan G, Tuncel G, Evren EU, Evren H, Suer K, Sanlidag T, Ergoren MC. Altered expression levels of TAS1R2 and TAS1R3 genes among SARS-CoV-2 variants of concerns. Mol Biol Rep 2023; 50:9343-9351. [PMID: 37817023 DOI: 10.1007/s11033-023-08893-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/04/2023] [Indexed: 10/12/2023]
Abstract
BACKGROUND The most common symptoms of coronavirus infections are fever, cough, shortness of breath, headache, ache of joints, a loss of smell and loss of taste, and etc. Early studies suggested that smell and taste receptors were associated with pathogenic detection and immunity. Thus, we aimed to evaluate the expression profile of gene receptors that are related to taste, smell, and appetite control in COVID-19 patients and their putative correlation with SARS-CoV-19 variants. METHOD Gene expression levels of TAS1R2, TAS1R3, TAS2R38, OR51E1, LEPR, GHRL were analyzed in 100 COVID-19 patients and 100 SARS-CoV-2 RT-qPCR negative group. RESULTS The expression levels of TAS1R2 and TAS1R3 genes were significantly decreased in COVID-19 patients who were infected with Delta variant. However, the TAS2R38 gene expression level was significantly lower when compared to the control group. The TAS1R2 gene expression was positively correlated with TAS1R3, and TAS2R38 genes (p = 0.001, p = 0.025, respectively). CONCLUSION TAS1R2, TAS1R3, and TAS2R38 gene expression levels were decreased in the Delta variant compared to the Omicron BA.1 variant in the studied groups. These results provided a significant clue for the temporary taste loss, especially in patients infected with the Delta variant, which is the most disruptive and symptomatic variant causing hospitalizations, and deaths compared to other variants may be because ACE2 is expressed in the taste buds and high replication of SARS-CoV-2 in the infected gustatory cells in the taste bud generates inflammation and then could eventually destroy the cells. This gustatory cell damage may cause malfunction of the gustatory system.
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Affiliation(s)
- Qendresa Hoti
- Faculty of Medicine, Department of Medical Biochemistry, Near East University, 99138, Nicosia, Cyprus
| | - Gokce Akan
- DESAM Research Institute, Near East University, 99138, Nicosia, Cyprus
| | - Gulten Tuncel
- DESAM Research Institute, Near East University, 99138, Nicosia, Cyprus
| | - Emine Unal Evren
- Faculty of Medicine, Department of Clinical Microbiology and Infectious Diseases, Girne University, Kyrenia, Cyprus
| | - Hakan Evren
- Faculty of Medicine, Department of Clinical Microbiology and Infectious Diseases, Girne University, Kyrenia, Cyprus
| | - Kaya Suer
- Faculty of Medicine, Department of Clinical Microbiology and Infectious Diseases, Near East University, 99138, Nicosia, Cyprus
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, 99138, Nicosia, Cyprus
| | - Mahmut Cerkez Ergoren
- Faculty of Medicine, Department of Medical Genetics, Near East University, 99138, Nicosia, Cyprus.
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Bostanci A, Gazi U, Tosun O, Suer K, Unal Evren E, Evren H, Sanlidag T. Long-COVID-19 in Asymptomatic, Non-Hospitalized, and Hospitalized Populations: A Cross-Sectional Study. J Clin Med 2023; 12:jcm12072613. [PMID: 37048697 PMCID: PMC10095523 DOI: 10.3390/jcm12072613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/15/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
A substantial proportion of coronavirus disease 2019 (COVID-19) survivors continue to suffer from long-COVID-19 (LC) symptoms. Our study aimed to determine the risk factors for LC by using a patient population from Northern Cyprus. Subjects who were diagnosed with severe acute respiratory syndrome-2 (SARS-CoV-2) infection in our university hospital were invited and asked to fill in an online questionnaire. Data from 296 survivors who had recovered from COVID-19 infection at least 28 days prior the study was used in the statistical analysis. For determination of risk factors for “ongoing symptomatic COVID-19 (OSC)” and “Post-COVID-19 (PSC)” syndromes, the patient population was further divided into group 1 (Gr1) and group 2 (Gr2), that included survivors who were diagnosed with COVID-19 within 4-12 weeks and at least three months prior the study, respectively. The number of people with post-vaccination SARS-CoV-2 infection was 266 (89.9%). B.1.617.2 (Delta) (41.9%) was the most common SARS-CoV-2 variant responsible for the infections, followed by BA.1 (Omicron) (34.8%), B.1.1.7 (Alpha) (15.5%), and wild-type SARS-CoV-2 (7.8%). One-hundred-and-nineteen volunteers (40.2%) stated an increased frequency of COVID-19-related symptoms and experienced the symptoms in the week prior to the study. Of those, 81 (38.8%) and 38 (43.7%) were from Gr1 and Gr2 groups, respectively. Female gender, chronic illness, and symptomatic status at PCR testing were identified as risk factors for developing OSC syndrome, while only the latter showed a similar association with PSC symptoms. Our results also suggested that ongoing and persistent COVID-19-related symptoms are not influenced by the initial viral cycle threshold (Ct) values of the SARS-CoV-2, SARS-CoV-2 variant as well as vaccination status and type prior to COVID-19. Therefore, strategies other than vaccination are needed to combat the long-term effect of COVID-19, especially after symptomatic SARS-CoV-2 infection, and their possible economic burden on healthcare settings.
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Affiliation(s)
- Aysegul Bostanci
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia 99138, Cyprus
| | - Umut Gazi
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia 99138, Cyprus
- Correspondence:
| | - Ozgur Tosun
- Department of Biostatistics, Faculty of Medicine, Near East University, Nicosia 99138, Cyprus
| | - Kaya Suer
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia 99138, Cyprus
| | - Emine Unal Evren
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, University of Kyrenia, Kyrenia 99320, Cyprus
| | - Hakan Evren
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, University of Kyrenia, Kyrenia 99320, Cyprus
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, Nicosia 99138, Cyprus
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Arikan A, Doluca O, Akhan S, Sanlidag T, Sayan M. Evaluation of lateral flow and ELISA techniques for detecting IgG and IgM antibodies in COVID-19 cases in Türkiye. East Mediterr Health J 2023; 29:91-99. [PMID: 36880490 DOI: 10.26719/emhj.23.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 10/19/2022] [Indexed: 12/24/2022]
Abstract
Background Antibody testing can complement molecular assays for detecting COVID-19. Aims We evaluated the concurrence between lateral flow assay and enzyme-linked immunosorbent assay (ELISA) for the detection of antibodies in severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Methods The study was conducted at Kocaeli University, Türkiye. We used a lateral flow assay and ELISA to test serum samples from COVID-19 cases, confirmed by polymerase chain reaction assays (study group) and pre-pandemic stored serum samples (control group). We used Deming regression to evaluate the antibody measurements. Results The study group included 100 COVID-19 cases, and the control group included pre-pandemic samples from 156 individuals. The lateral flow assay detected immunoglobulin M (IgM) and G (IgG) antibodies in 35 and 37 study group samples. ELISA detected IgM nucleocapsid (N) antibodies in 18 samples, and IgG (N) and IgG spike 1 (S1) antibodies in 31 and 29 samples, respectively. None of the techniques detected antibodies in the control samples. Strong correlations were found between lateral flow IgG (N+ receptor-binding domain + S1) and ELISA IgG (S) (r = 0.93, P < 0.01) and ELISA IgG (N) (r = 0.81, P < 0.01). Weaker correlations were seen between ELISA IgG S and IgG N (r = 0.79, P < 0.01) and lateral flow assay and ELISA IgM (N) (r = 0.70, P < 0.01). Conclusion Lateral flow assay and ELISA techniques gave consistent results for IgG/IgM antibody measurements towards spike and nucleocapsid proteins, suggesting that both methods can be used to detect COVID-19 where access to molecular test kits is difficult.
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Affiliation(s)
- Ayse Arikan
- DESAM Research Institute, Near East University, Nicosia, Cyprus
| | - Osman Doluca
- Department of Biomedical Engineering, Izmir University of Economics, Izmir, Türkiye
| | - Sila Akhan
- Department of Infectious Disease and Clinical Microbiology, Kocaeli University, Kocaeli, Türkiye
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, Nicosia, Cyprus
| | - Murat Sayan
- PCR Unit, Kocaeli University Hospital, Kocaeli University, Kocaeli, Türkiye
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6
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Mamurova B, Akan G, Mogol E, Turgay A, Tuncel G, Evren EU, Evren H, Suer K, Sanlidag T, Ergoren MC. Strong Association between Vitamin D Receptor Gene and Severe Acute Respiratory Syndrome coronavirus 2 Infectious Variants. Glob Med Genet 2023; 10:27-33. [PMID: 36819669 PMCID: PMC9935054 DOI: 10.1055/s-0043-1761924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
A coronavirus disease 2019 (COVID-19) disease, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has created significant concern since December 2019 worldwide. The virus is known to be highly transmissible. Heterogenic clinical features even vary more among SARS-CoV-2 variants from asymptomatic forms to severe symptoms. Previous studies revealed an association between COVID-19 and vitamin D deficiency resulting from its low levels in COVID-19 patients. To our knowledge, there is no scientific investigation that evaluates the direct association between SARS-CoV-2 variants of concern and vitamin D receptor ( VDR ) gene markers in Cyprus. Thus, the present study aimed to identify the putative impact of VDR gene polymorphisms on SARS-CoV-2 infection among different variants. The nasopharyngeal swabs were taken from a total number of 600 patients who were admitted to Near East University Hospital COVID-19 Polymerase Chain Reaction (PCR) Diagnosis Laboratory for routine SARS-CoV-2 real-time quantitative reverse transcription PCR (RT-qPCR) test. The RT-qPCR negative resulting samples were taken as control samples ( n = 300). On the contrary, the case group consisted of patients who were SARS-CoV-2 RT-qPCR positive, infected with either SARS-CoV-2 Alpha ( n = 100), Delta ( n = 100), or Omicron ( n = 100) variants. Two VDR gene polymorphisms, Taq I-rs731236 T > C and Fok I-rs10735810 C > T, were genotyped by polymerase chain reaction-restriction fragment length polymorphism. The mean age of the COVID-19 patient's ± standard deviation was 46.12 ± 12.36 and 45.25 ± 12.71 years old for the control group ( p > 0.05). The gender distribution of the patient group was 48.3% female and 51.7% male and for the control group 43% female and 57% male ( p > 0.05). Significant differences were observed in genotype frequencies of FokI and TaqI variants between SARS-CoV-2 patients compared to the control group ( p < 0.005). Furthermore, the risk alleles, FokI T allele and TaqI C, were found to be statistically significant (odds ratio [OR] = 1.80, 95% confidence interval [CI] = 1.42-2.29, OR = 1.62, 95% CI = 1.27-2.05, respectively) in COVID-19 patients. The highest number of patients with wild-type genotype was found in the control group, which is 52.9% compared with 17.5% in the case group. Moreover, most of the COVID-19 patients had heterozygous/homozygous genotypes, reaching 82.5%, while 47.1% of the control group patients had heterozygous/homozygous genotypes. Our results suggested that patients with FokI and TaqI polymorphisms might tend to be more susceptible to getting infected with SARS-CoV-2. Overall, findings from this study provided evidence regarding vitamin D supplements recommendation in individuals with vitamin D deficiency/insufficiency in the peri- or post-COVID-19 pandemic.
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Affiliation(s)
- Begimai Mamurova
- Department of Molecular Medicine, Institute of Graduate Studies, Near East University, Nicosia, Cyprus
| | - Gokce Akan
- DESAM Research Institute, Near East University, Nicosia, Cyprus
| | - Evren Mogol
- Department of Molecular Medicine, Institute of Graduate Studies, Near East University, Nicosia, Cyprus
| | - Ayla Turgay
- Department of Molecular Medicine, Institute of Graduate Studies, Near East University, Nicosia, Cyprus,Laboratory of Medical Genetics, Near East University Hospital, Near East University, Nicosia, Cyprus
| | - Gulten Tuncel
- DESAM Research Institute, Near East University, Nicosia, Cyprus
| | - Emine Unal Evren
- Department of Medical Microbiology and Infectious Diseases, Faculty of Medicine, Kyrenia University
| | - Hakan Evren
- Department of Medical Microbiology and Infectious Diseases, Faculty of Medicine, Kyrenia University
| | - Kaya Suer
- Department of Medical Microbiology and Infectious Diseases, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, Nicosia, Cyprus
| | - Mahmut Cerkez Ergoren
- Department of Molecular Medicine, Institute of Graduate Studies, Near East University, Nicosia, Cyprus,Laboratory of Medical Genetics, Near East University Hospital, Near East University, Nicosia, Cyprus,Department of Medical Genetics, Faculty of Medicine, Near East University, Nicosia, Cyprus,Address for correspondence M.C. Ergoren, PhD Department of Medical Genetics, Near East University, Faculty of Medicine99138 NicosiaCyprus
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7
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Kiraz A, Sezer O, Alemdar A, Canbek S, Duman N, Bisgin A, Cora T, Ruhi HI, Ergoren MC, Geçkinli BB, Sag SO, Gözden HE, Oz O, Altıntaş ZM, Yalcıntepe S, Keskin A, Tak AY, Paskal ŞA, Yürekli UF, Demirtas M, Evren EU, Hanta A, Başdemirci M, Suer K, Balta B, Kocak N, Karabulut HG, Cobanogulları H, Ateş EA, Bozdoğan ST, Eker D, Ekinci S, Nergiz S, Tuncalı T, Yagbasan S, Alavanda C, Kutlay NY, Evren H, Erdoğan M, Altıner S, Sanlidag T, Gonen GA, Vicdan A, Eras N, Eker HK, Balasar O, Tuncel G, Dundar M, Gurkan H, Temel SG. Contribution of genotypes in Prothrombin and Factor V Leiden to COVID-19 and disease severity in patients at high risk for hereditary thrombophilia. J Med Virol 2023; 95:e28457. [PMID: 36597901 DOI: 10.1002/jmv.28457] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/23/2022] [Accepted: 12/30/2022] [Indexed: 01/05/2023]
Abstract
Thrombotic and microangiopathic effects have been reported in COVID-19 patients. This study examined the contribution of the hereditary thrombophilia factors Prothrombin (FII) and Factor V Leiden (FVL) genotypes to the severity of COVID-19 disease and the development of thrombosis. This study investigated FII and FVL alleles in a cohort of 9508 patients (2606 male and 6902 female) with thrombophilia. It was observed that 930 of these patients had been infected by SARS-CoV-2 causing COVID-19. The demographic characteristics of the patients and their COVID-19 medical history were recorded. Detailed clinical manifestations were analyzed in a group of cases (n = 4092). This subgroup was age and gender-matched. FII and FVL frequency data of healthy populations without thrombophilia risk were obtained from Bursa Uludag University Medical Genetic Department's Exome Databank. The ratio of males (31.08%; 27.01%) and the mean age (36.85 ± 15.20; 33.89 ± 14.14) were higher among COVID-19 patients compared to non-COVID-19 patients. The prevalence of FVL and computerized tomography (CT) positivity in COVID-19 patients was statistically significant in the thrombotic subgroup (p < 0.05). FVL prevalence, CT positivity rate, history of thrombosis, and pulmonary thromboembolism complication were found to be higher in deceased COVID-19 patients (p < 0.05). Disease severity was mainly affected by FVL and not related to genotypes at the Prothrombin mutations. Overall, disease severity and development of thrombosis in COVID-19 are mainly affected by the variation within the FVL gene. Possible FVL mutation should be investigated in COVID-19 patients and appropriate treatment should be started earlier in FVL-positive patients.
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Affiliation(s)
- Aslıhan Kiraz
- Kayseri City Training and Research Hospital, Genetic Diseases Evaluation Center, Kayseri, Turkey
| | - Ozlem Sezer
- Samsun Training and Research Hospital, Genetic Diseases Evaluation Center, Samsun, Turkey
| | - Adem Alemdar
- Department of Translational Medicine, Institute of Health Sciences, Bursa Uludag University, Bursa, Turkey
| | - Sezin Canbek
- Umraniye Training and Research Hospital, Genetic Diseases Evaluation Center, Health Sciences University, Istanbul, Turkey
| | - Nilgun Duman
- Department of Medical Genetics, Dragos Hospital, Bezmialem Vakıf University, Istanbul, Turkey
| | - Atıl Bisgin
- Medical Genetics Department of Medical Faculty, AGENTEM (Adana Genetic Diseases Diagnosis and Treatment Center), Cukurova University, Adana, Turkey
| | - Tulin Cora
- Department of Medical Genetics, Faculty of Medicine, Selcuk University, Konya, Turkey
| | - Hatice Ilgın Ruhi
- Department of Medical Genetics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Mahmut Cerkez Ergoren
- Department of Medical Genetics, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Bilgen Bilge Geçkinli
- Department of Medical Genetics, Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Sebnem Ozemri Sag
- Department of Medical Genetics, Faculty of Medicine, Bursa Uludag University, Bursa, Turkey
| | - Hilmi Erdem Gözden
- Department of Translational Medicine, Institute of Health Sciences, Bursa Uludag University, Bursa, Turkey.,Department of Haematology, Bursa Yuksek Ihtısas Training and Research Hospital, Health Sciences University, Bursa, Turkey
| | - Ozlem Oz
- Department of Medical Genetics, Faculty of Medicine, Harran University, Sanlıurfa, Turkey
| | - Zuhal Mert Altıntaş
- Department of Medical Genetics, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Sinem Yalcıntepe
- Department of Medical Genetics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Adem Keskin
- Department of Biochemistry, Institute of Health Sciences, Adnan Menderes University, Aydın, Turkey
| | - Ayşegül Yabacı Tak
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey
| | - Şeyma Aktaş Paskal
- Department of Medical Genetics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Uğur Fahri Yürekli
- Department of Medical Biochemistry, Sanlıurfa Mehmet Akif İnan Health Application and Research Center, Health Sciences University, Sanlıurfa, Turkey
| | | | - Emine Unal Evren
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, University of Kyrenia, Kyrenia, Cyprus
| | - Abdullah Hanta
- Cukurova University AGENTEM (Adana Genetic Diseases Diagnosis and Treatment Center), Adana, Turkey
| | - Müşerref Başdemirci
- Konya Training and Research Hospital, Genetic Diseases Evaluation Center, Health Sciences University, Konya, Turkey
| | - Kaya Suer
- Department of Infectious Diseases and Clinicai Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Burhan Balta
- Kayseri City Training and Research Hospital, Genetic Diseases Evaluation Center, Kayseri, Turkey
| | - Nadir Kocak
- Department of Medical Genetics, Faculty of Medicine, Selcuk University, Konya, Turkey
| | | | | | - Esra Arslan Ateş
- Department of Medical Genetics, Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Sevcan Tuğ Bozdoğan
- Medical Genetics Department of Medical Faculty, AGENTEM (Adana Genetic Diseases Diagnosis and Treatment Center), Cukurova University, Adana, Turkey
| | - Damla Eker
- Department of Medical Genetics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Sadiye Ekinci
- Department of Medical Genetics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Süleyman Nergiz
- Department of Medical Genetics, Faculty of Medicine, Selcuk University, Konya, Turkey
| | - Timur Tuncalı
- Department of Medical Genetics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Serap Yagbasan
- Department of Medical Genetics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Ceren Alavanda
- Department of Medical Genetics, Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Nuket Yurur Kutlay
- Department of Medical Genetics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Hakan Evren
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, University of Kyrenia, Kyrenia, Cyprus
| | - Murat Erdoğan
- Kayseri City Training and Research Hospital, Genetic Diseases Evaluation Center, Kayseri, Turkey
| | - Sule Altıner
- Department of Medical Genetics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | | | - Gizem Akıncı Gonen
- Kayseri City Training and Research Hospital, Genetic Diseases Evaluation Center, Kayseri, Turkey
| | - Arzu Vicdan
- Department of Medical Genetics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Nazan Eras
- Department of Medical Genetics, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Hatice Koçak Eker
- Konya Training and Research Hospital, Genetic Diseases Evaluation Center, Health Sciences University, Konya, Turkey
| | - Ozgür Balasar
- Konya Training and Research Hospital, Genetic Diseases Evaluation Center, Health Sciences University, Konya, Turkey
| | - Gulten Tuncel
- DESAM Institute, Near East University, Nicosia, Cyprus
| | - Munis Dundar
- Department of Medical Genetics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Hakan Gurkan
- Department of Medical Genetics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Sehime Gulsun Temel
- Department of Translational Medicine, Institute of Health Sciences, Bursa Uludag University, Bursa, Turkey.,Department of Medical Genetics, Faculty of Medicine, Bursa Uludag University, Bursa, Turkey.,Department of Medical Genetics, Health Sciences Institute, Baskent University, Ankara, Turkey
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8
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Sayan M, Sultanoglu N, Sanlidag T. Dynamics of Rilpivirine Resistance-Associated Mutation: E138 in Reverse Transcriptase among Antiretroviral-Naive HIV-1-Infected Individuals in Turkey. AIDS Res Hum Retroviruses 2023; 39:84-90. [PMID: 36301912 DOI: 10.1089/aid.2022.0065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Rilpivirine, one of the non-nucleoside reverse transcriptase inhibitors class anti-HIV agents, is used as an alternative drug to treat HIV-1-positive individuals according to current antiretroviral therapy (ART) guidelines. Mutation in the position E138 in HIV-1 reverse transcriptase (RT) leads to resistance to rilpivirine, alone reducing its susceptibility two to threefolds. The main aim of this study was to determine the dynamics of E138 mutation in the RT domain of the HIV-1 pol gene; in 6398 newly diagnosed and treatment-naive individuals in Turkey from 2013 to 2021. Rilpivirine-associated mutations were found among 424 (6.6%) out of 6398. Individuals with the E138 mutation had significantly higher HIV-1 RNA load than individuals without the E138 mutation (p = .044). The E138 mutation was mainly observed in the B subtype (40%) of HIV-1 compared to the non-B subtypes (26.9%) and the circulating recombinant forms (33.1%) (p < .001). Most E138 mutations were E138A (80%), followed by E138G (16.5%). This study uncovered the dynamics of rilpivirine-associated mutations over a long period and a large patient population. Before administering ART regimens consisting of rilpivirine, resistance monitoring is highly recommended for effective patient management in the treatment-of naive HIV-1-infected individuals.
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Affiliation(s)
- Murat Sayan
- Clinical Laboratory, PCR Unit, Kocaeli University, Kocaeli, Turkey.,DESAM Research Institute, Near East University, Nicosia, North Cyprus.,Operational Research Center in Healthcare, Near East University, Nicosia, North Cyprus
| | - Nazife Sultanoglu
- DESAM Research Institute, Near East University, Nicosia, North Cyprus.,Department of Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, North Cyprus
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, Nicosia, North Cyprus
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9
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Ergoren MC, Akan G, Guler E, Tuncel G, Akovalı D, Evren EU, Evren H, Suer HK, Sanlidag T. Sex and ABO Blood Differences in SARS-CoV-2 Infection Susceptibility. Glob Med Genet 2023; 10:22-26. [PMID: 36727032 PMCID: PMC9886502 DOI: 10.1055/s-0043-1761202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Data consisting of millions of cases cannot still explain the immunopathogenesis mechanism between severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and host cell for ongoing coronavirus disease 2019 (COVID-19) pandemics. Epidemiological studies among different populations suggested different impacts of ABO and Rh antibodies on the COVID-19 susceptibility. Thus, the ABO blood group and the SARS-CoV-2 infection paradox remain unclear. Therefore, the present retrospective case-control study aimed to investigate the possible association between ABO blood groups and Rh blood types on SARS-CoV-2 infection in the Turkish Cypriot population. A total of 18,639 Turkish Cypriot subjects (297 SARS-CoV-2 COVID-19 patients and 18,342 healthy) were included in this study. Personal and clinical characteristics including age, gender, SARS-CoV-2 infection status, the ABO blood group and Rh blood types were evaluated and compared between two groups. As a result, ABO blood group was shown to be associated with a higher risk of SARS-CoV-2 infection as well as with male sex ( p = 0.018). There was no association between Rh blood type and COVID-19. Overall, this study is the first largest sample group study to show the distribution of ABO blood group and Rh blood types in the healthy Turkish Cypriot population. Based on the current evidence, there are insufficient data to guide public health policies regarding COVID-19 pathogenesis.
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Affiliation(s)
- Mahmut Cerkez Ergoren
- Department of Medical Genetics, Faculty of Medicine, Near East University, Nicosia, Cyprus,Address for correspondence Mahmut Cerkez Ergoren, PhD Department of Medical GeneticsFaculty of Medicine, Near East University, 99138 NicosiaCyprus
| | - Gokce Akan
- DESAM Research Institute, Near East University, Nicosia, Cyprus
| | - Emrah Guler
- DESAM Research Institute, Near East University, Nicosia, Cyprus,Department of Nutrition and Dietetics, Faculty of Health Sciences, Near East University, Nicosia, Cyprus
| | - Gulten Tuncel
- DESAM Research Institute, Near East University, Nicosia, Cyprus
| | - Damla Akovalı
- Blood Bank Unite, Near East University Hospital, Near East University, Nicosia, Cyprus
| | - Emine Unal Evren
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, University of Kyrenia, Kyrenia, Cyprus
| | - Hakan Evren
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, University of Kyrenia, Kyrenia, Cyprus
| | - Huseyin Kaya Suer
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, Nicosia, Cyprus
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10
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Ergoren MC, Akan G, Volkan E, Kandemis E, Evren EU, Evren H, Volkan E, Tuncel G, Suer K, Sanlidag T. The "vaccine" hubbub: Viral load comparisons of SARS-CoV-2 Delta and Omicron variants against different vaccine-booster vaccine combinations. J Med Virol 2023; 95:e28309. [PMID: 36377303 DOI: 10.1002/jmv.28309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022]
Abstract
There is a significant body of evidence showing that efficient vaccination schemes against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is helping control the coronavirus disease 2019 (COVID-19) pandemic. However, this goal cannot be achieved without real world data highlighting the impact of vaccines against viral spread. In this study, we have aimed at differentially investigating the impact of COVID-19 vaccines (CoronaVac, Pfizer/BioNTech, Astra/Zeneca Oxford, Janssen) used in North Cyprus in limiting the viral load of Delta and Omicron variants of SARS-COV-2. We have utilized real-time quantitative polymerase chain reaction cycle threshold values (Ct values) as a proxy of viral load of the two SARS-CoV-2 variants. Our results indicate that the administration of at least two doses of the messenger RNA-based Pfizer/BioNTech vaccine leads to the lowest viral load (highest Ct values) obtained for both Omicron and Delta variants. Interestingly, regardless of the vaccine type used, our study revealed that Delta variant produced significantly higher viral loads (lower Ct values) compared with the Omicron variant, where the latter was more commonly associated with younger patients. Viral spread is a crucial factor that can help determine the future of the pandemic. Thus, prioritizing vaccines that will play a role in not only preventing severe disease but also in limiting viral load and spread may contribute to infection control strategies.
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Affiliation(s)
- Mahmut C Ergoren
- Department of Medical Genetics, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Gokce Akan
- DESAM Research Institute, Near East University, Nicosia, Cyprus
| | - Ender Volkan
- Department of Microbiology, Faculty of Pharmacy, Cyprus International University, Nicosia, Cyprus.,Department of Microbiology, Biotechnology Research Center, Cyprus International University, Nicosia, Cyprus
| | - Emine Kandemis
- Department of Medical Biology, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Emine U Evren
- Department of Clinical Microbiology and Infectious Diseases, Faculty of Medicine, University of Kyrenia, Kyrenia, Cyprus
| | - Hakan Evren
- Department of Clinical Microbiology and Infectious Diseases, Faculty of Medicine, University of Kyrenia, Kyrenia, Cyprus
| | - Eliz Volkan
- Department of Psychology, Faculty of Arts and Sciences, Cyprus International University, Nicosia, Cyprus
| | - Gulten Tuncel
- DESAM Research Institute, Near East University, Nicosia, Cyprus
| | - Kaya Suer
- Department of Clinical Microbiology and Infectious Diseases, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, Nicosia, Cyprus
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11
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Seyer Cagatan A, Taiwo Mustapha M, Bagkur C, Sanlidag T, Ozsahin DU. An Alternative Diagnostic Method for C. neoformans: Preliminary Results of Deep-Learning Based Detection Model. Diagnostics (Basel) 2022; 13:diagnostics13010081. [PMID: 36611373 PMCID: PMC9818640 DOI: 10.3390/diagnostics13010081] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/23/2022] [Accepted: 12/16/2022] [Indexed: 12/29/2022] Open
Abstract
Cryptococcus neoformans is an opportunistic fungal pathogen with significant medical importance, especially in immunosuppressed patients. It is the causative agent of cryptococcosis. An estimated 220,000 annual cases of cryptococcal meningitis (CM) occur among people with HIV/AIDS globally, resulting in nearly 181,000 deaths. The gold standards for the diagnosis are either direct microscopic identification or fungal cultures. However, these diagnostic methods need special types of equipment and clinical expertise, and relatively low sensitivities have also been reported. This study aims to produce and implement a deep-learning approach to detect C. neoformans in patient samples. Therefore, we adopted the state-of-the-art VGG16 model, which determines the output information from a single image. Images that contain C. neoformans are designated positive, while others are designated negative throughout this section. Model training, validation, testing, and evaluation were conducted using frameworks and libraries. The state-of-the-art VGG16 model produced an accuracy and loss of 86.88% and 0.36203, respectively. Results prove that the deep learning framework VGG16 can be helpful as an alternative diagnostic method for the rapid and accurate identification of the C. neoformans, leading to early diagnosis and subsequent treatment. Further studies should include more and higher quality images to eliminate the limitations of the adopted deep learning model.
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Affiliation(s)
- Ayse Seyer Cagatan
- Department of Medical and Clinical Microbiology, Faculty of Medicine, Cyprus International University, TRNC Mersin 10, Nicosia 99010, Turkey
| | - Mubarak Taiwo Mustapha
- Operational Research Center in Healthcare, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
| | - Cemile Bagkur
- DESAM Research Institute, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
| | - Dilber Uzun Ozsahin
- Operational Research Center in Healthcare, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
- Medical Diagnostic Imaging Department, College of Health Science, University of Sharjah, Sharjah 27272, United Arab Emirates
- Correspondence:
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12
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Arikan A, Sanlidag T, Sayan M, Uzun B, Uzun Ozsahin D. Fuzzy-Based PROMETHEE Method for Performance Ranking of SARS-CoV-2 IgM Antibody Tests. Diagnostics (Basel) 2022; 12:diagnostics12112830. [PMID: 36428889 PMCID: PMC9689080 DOI: 10.3390/diagnostics12112830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/07/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022] Open
Abstract
Antibody tests, widely used as a complementary approach to reverse transcriptase-polymerase chain reaction testing in identifying COVID-19 cases, are used to measure antibodies developed for COVID-19. This study aimed to evaluate the different parameters of the FDA-authorized SARS-CoV-2 IgM antibody tests and to rank them according to their performance levels. In the study, we involved 27 antibody tests, and the analyzes were performed using the fuzzy preference ranking organization method for the enrichment evaluation model, a multi-criteria decision-making model. While criteria such as analytical sensitivity, specificity, positive predictive value, and negative predictive value were evaluated in the study, the ranking was reported by determining the importance levels of the criteria. According to our evaluation, Innovita 2019-nCoV Ab Test (colloidal gold) was at the top of the ranking. While Cellex qSARS-CoV-2 IgG/IgM Rapid Test and Assure COVID-19 IgG/IgM Rapid Tester ranked second and third on the list, the InBios-SCoV 2 Detect Ig M ELISA Rapid Test Kit was determined as the least preferable. The fuzzy preference ranking organization method for enrichment evaluation, which has been applied to many fields, can help decision-makers choose the appropriate antibody test for managing COVID-19 in controlling the global pandemic.
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Affiliation(s)
- Ayse Arikan
- DESAM Research Institute, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
- Department of Medical Microbiology and Clinical Microbiology, Kyrenia University, TRNC Mersin 10, Kyrenia 99320, Turkey
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
| | - Murat Sayan
- DESAM Research Institute, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
- PCR Unit, Research and Education Hospital, Kocaeli University, Kocaeli 41001, Turkey
| | - Berna Uzun
- Department of Statistics, Carlos III Madrid University, 28903 Getafe, Madrid, Spain
- Department of Mathematics, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
- Operational Research Center in Healthcare, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
| | - Dilber Uzun Ozsahin
- Operational Research Center in Healthcare, Near East University, TRNC Mersin 10, Nicosia 99138, Turkey
- Department of Medical Diagnostic Imaging, College of Health Sciences, Sharjah University, Sharjah 27272, United Arab Emirates
- Correspondence:
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13
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Ergoren MC, Tuncel G, Ozverel CS, Sanlidag T. Designing In-House SARS-CoV-2 RT-qPCR Assay for Variant of Concerns. Glob Med Genet 2022; 9:252-257. [PMID: 36147624 PMCID: PMC9489470 DOI: 10.1055/s-0042-1756660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Variants (Alfa, Gamma, Beta, and Delta) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are circulating worldwide. These variants of concerns share some common mutations but they also have distinguishing mutations. These mutations affect transmissibility of virus and cause evasion from neutralizing antibodies. Monitoring and identification of circulating variants is of great importance for public health. In this study, an in-house SARS-CoV-2 reverse transcription quantitative polymerase chain reaction (RT-qPCR) kit was designed to detect variants of concerns by the World Health Organization. Primer sets and probes were designed to target presence of virus along with mutations for identifying different variants (for N501Y, HV69–70del, K417N, and T478K). Reactions were set by using commercially available master mixes without a reference dye. The RT-qPCR conditions were optimized by using commercially available ribonucleic acid samples of wild-type, Alfa, Beta, Gamma, and Delta variants. Several samples were also analyzed by the in-house kit after optimization studies. All Alfa variant and wild-type samples were also double confirmed with a commercially available variant detection kit demonstrating a 100% consistence with the in-house kit. Beta, Gamma, and Delta variants could not be confirmed with any other commercially available kits as there is not any available one in the market. SARS-CoV-2 variants are gaining importance during the pandemic and shaping the fight against the virus. RT-qPCR kits detecting different variants would provide a significant advantage while screening the population.
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Affiliation(s)
- Mahmut Cerkez Ergoren
- Department of Medical Genetics, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Gulten Tuncel
- DESAM Research Institute, Near East University, Nicosia, Cyprus
| | - Cenk Serhan Ozverel
- DESAM Research Institute, Near East University, Nicosia, Cyprus
- Department of Basic Medical Sciences, Faculty of Dentistry, Near East University, Nicosia, Cyprus
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, Nicosia, Cyprus
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14
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Tuncel G, Ergoren MC, Baddal B, Tulay P, Ozverel CS, Guler E, Suer HK, Sayan M, Sanlidag T. Detection of SARS-CoV-2 N501Y mutation among SARS-CoV-2 variants of concern circulating in Northern Cyprus. Future Virol 2022. [PMID: 35747326 PMCID: PMC9203032 DOI: 10.2217/fvl-2021-0273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 05/26/2022] [Indexed: 11/22/2022]
Abstract
Aim: SARS-CoV-2 variants of concern (VOCs) carry signature mutations particularly in the spike protein. Most VOCs lineages that carry N501Y substitution have been reported to evade viral diagnostic tests and have impact on vaccine effectiveness. Therefore, monitoring the circulating variants represents a major requirement for a public health response worldwide. We aimed to investigate the prevalence of N501Y bearing SARS-CoV-2 samples in Northern Cyprus. Materials & methods: Reverse transcription quantitative PCR technique was used to identify N501Y mutation from 658 samples. Results: Our results indicate that the proportion of N501Y-bearing lineages increased significantly from January through May 2021 (45.2–75.5%) in the region. Conclusion: These results indicate that VOCs are dominant lineages in the country and highlight an alarming situation which require strict governmental measures to minimize COVID-19 morbidity and mortality.
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Affiliation(s)
- Gulten Tuncel
- DESAM Research Institute, Near East University, Nicosia, 99138, Cyprus
| | - Mahmut Cerkez Ergoren
- Department of Medical Genetics, Faculty of Medicine, Near East University, Nicosia, 99138, Cyprus
| | - Buket Baddal
- DESAM Research Institute, Near East University, Nicosia, 99138, Cyprus.,Department of Clinical Microbiology & Medical Microbiology, Faculty of Medicine, Near East University, Nicosia, 99138, Cyprus
| | - Pinar Tulay
- DESAM Research Institute, Near East University, Nicosia, 99138, Cyprus.,Department of Medical Genetics, Faculty of Medicine, Near East University, Nicosia, 99138, Cyprus
| | - Cenk Serhan Ozverel
- DESAM Research Institute, Near East University, Nicosia, 99138, Cyprus.,Department of Basic Medical Sciences, Faculty of Dentistry, Near East University, Nicosia, 99138, Cyprus
| | - Emrah Guler
- DESAM Research Institute, Near East University, Nicosia, 99138, Cyprus.,Faculty of Health Sciences, Near East University, Nicosia, 99138, Cyprus
| | - Huseyin Kaya Suer
- Department of Infectious Diseases & Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, 99138, Cyprus
| | - Murat Sayan
- DESAM Research Institute, Near East University, Nicosia, 99138, Cyprus.,PCR Unit, Educational & Research Hospital of Kocaeli University, Kocaeli University, Kocaeli, 41001, Turkey
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, Nicosia, 99138, Cyprus
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15
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Abujamous SMA, Arikan A, Guler E, Suer K, Sanlidag T. Investigation of 2019-2020 Seasonal Influenza Activity at a University Hospital in Northern Cyprus. cjms 2022. [DOI: 10.4274/cjms.2021.3502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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16
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Paolacci S, Ergoren MC, De Forni D, Manara E, Poddesu B, Cugia G, Dhuli K, Camilleri G, Tuncel G, Kaya Suer H, Sultanoglu N, Sayan M, Dundar M, Beccari T, Ceccarini MR, Gunsel IS, Dautaj A, Sanlidag T, Connelly ST, Tartaglia GM, Bertelli M. In vitro and clinical studies on the efficacy of α-cyclodextrin and hydroxytyrosol against SARS-CoV-2 infection. Eur Rev Med Pharmacol Sci 2021; 25:81-89. [PMID: 34890038 DOI: 10.26355/eurrev_202112_27337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a new coronavirus responsible for the current pandemic of coronavirus disease 2019 (COVID-19). This virus attacks cells of the airway epithelium by binding transmembrane angiotensin-converting enzyme 2 (ACE2). Hydroxytyrosol has anti-viral properties. Alpha-cyclodextrin can deplete sphingolipids and phospholipids from cell membranes. The aim of the present experimental study was to evaluate the efficacy of α-cyclodextrin and hydroxytyrosol in improving defenses against SARS-CoV-2 infection in in vitro cell models and humans. PATIENTS AND METHODS For in vitro experiments on Vero E6 cells, RNA for RT-qPCR analysis was extracted from Caco2 and human fibroblast cell lines. For study in humans, the treatment group consisted of 149 healthy volunteers in Northern Cyprus, considered at higher risk of SARS-CoV-2 infection than the general population. The volunteers used nasal spray containing α-cyclodextrin and hydroxytyrosol for 4 weeks. The control group consisted of 76 healthy volunteers who did not use the spray. RESULTS RT-qPCR experiments on targeted genes involved in endocytosis showed a reduction in gene expression, whereas cytotoxicity and cytoprotective tests showed that the compounds exerted a protective effect against SARS-CoV-2 infection at non-cytotoxic concentrations. None of the volunteers became positive to SARS-CoV-2 RT-qPCR assay during the 30 days of treatment. CONCLUSIONS Treatment with α-cyclodextrin and hydroxytyrosol nasal spray improved defenses against SARS-CoV-2 infection and reduced synthesis of viral particles.
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17
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Paolacci S, Kiani AK, Shree P, Tripathi D, Tripathi YB, Tripathi P, Tartaglia GM, Farronato M, Farronato G, Connelly ST, Ceccarini MR, Coatto M, Ergoren MC, Sanlidag T, Dautaj A, Bertelli M. Scoping review on the role and interactions of hydroxytyrosol and alpha-cyclodextrin in lipid-raft-mediated endocytosis of SARS-CoV-2 and bioinformatic molecular docking studies. Eur Rev Med Pharmacol Sci 2021; 25:90-100. [PMID: 34890039 DOI: 10.26355/eurrev_202112_27338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of the study was to show the effect that two naturally occurring compounds, a cyclodextrin and hydroxytyrosol, can have on the entry of SARS-CoV-2 into human cells. MATERIALS AND METHODS The PubMed database was searched to retrieve studies published from 2000 to 2020, satisfying the inclusion criteria. The search keywords were: SARS-CoV, SARS-CoV-2, coronavirus, lipid raft, endocytosis, hydroxytyrosol, cyclodextrin. Modeling of alpha-cyclodextrin and hydroxytyrosol were done using UCSF Chimera 1.14. RESULTS The search results indicated that cyclodextrins can reduce the efficiency of viral endocytosis and that hydroxytyrosol has antiviral properties. Bioinformatic docking studies showed that alpha-cyclodextrin and hydroxytyrosol, alone or in combination, interact with the viral spike protein and its host cell receptor ACE2, thereby potentially influencing the endocytosis process. CONCLUSIONS Hydroxytyrosol and alpha-cyclodextrin can be useful against the spread of SARS-CoV-2.
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18
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Rajabal V, Taner F, Sanlidag T, Suer K, Guler E, Sayan M, Petrovski S. Genetic characterisation of antibiotic resistance transposons Tn6608 and Tn6609 isolated from clinical Pseudomonas strains in Cyprus. J Glob Antimicrob Resist 2021; 26:330-334. [PMID: 34363995 DOI: 10.1016/j.jgar.2021.07.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 07/19/2021] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES Antibiotic therapy for Pseudomonas infections is becoming increasingly difficult. In this study, the transposons from two multidrug-resistant (MDR) clinical Pseudomonas strains containing related transposons responsible for giving rise to resistance determinants were characterised. METHODS Two MDR clinical Pseudomonas isolates were obtained from a medical facility in Cyprus. The strains were identified as Pseudomonas putida C54 and Pseudomonas aeruginosa C69. DNA was extracted from both strains and was sequenced. Transposons were identified, annotated and compared with DNA sequences in GenBank. RESULTS Two related nested transposons, here named Tn6608 (from P. putida C54) and Tn6609 (from P. aeruginosa C69), were characterised. The transposons are built on an ancestral Tn1403 base element (here named Tn1403A) that contains only the transposition module (tnpA and tnpR) and the associated cargo gene module (orfA, orfB, orfC and orfD) flanked by a 38-bp inverted repeat. The nested transposons identified in this study have evolved via acquisition of multiple transposons, adding multiple resistance genes to an ancestral transposon that originally lacked any resistance determinants. CONCLUSION Transposons related to Tn6608 and Tn6609 have evolved and are globally disseminated. Of particular interest is that most of these nested transposons are located within the same site in a genomic island, providing alternative avenues for dissemination.
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Affiliation(s)
- Vaheesan Rajabal
- Department of Physiology, Anatomy & Microbiology, La Trobe University, Bundoora, Victoria 3086, Australia
| | - Ferdiye Taner
- Department of Physiology, Anatomy & Microbiology, La Trobe University, Bundoora, Victoria 3086, Australia; Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Nicosia, Cyprus
| | - Tamer Sanlidag
- DESAM Research Institute, Near East University, Nicosia, Cyprus
| | - Kaya Suer
- Department of Clinical Microbiology and Infectious Diseases, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Emrah Guler
- Department of Clinical Microbiology and Infectious Diseases, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Murat Sayan
- DESAM Research Institute, Near East University, Nicosia, Cyprus; Faculty of Medicine, Clinical Laboratory, PCR Unit, Kocaeli University, Kocaeli, Turkey
| | - Steve Petrovski
- Department of Physiology, Anatomy & Microbiology, La Trobe University, Bundoora, Victoria 3086, Australia.
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19
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Abushoufa F, Arikan A, Sanlidag T, Guvenir M, Guler E, Suer K. Absence of Zika Virus Seroprevalence Among Blood Donors in Northern Cyprus. J Infect Dev Ctries 2021; 15:1032-1034. [PMID: 34343130 DOI: 10.3855/jidc.12766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 02/16/2021] [Indexed: 10/31/2022] Open
Affiliation(s)
- Fathi Abushoufa
- Near East University, Faculty of Medicine, Department of Medical Microbiology and Clinical Microbiology, Nicosia, Northern Cyprus
| | - Ayse Arikan
- Near East University, Faculty of Medicine, Department of Medical Microbiology and Clinical Microbiology, Nicosia, Northern Cyprus.
| | - Tamer Sanlidag
- Near East University, DESAM Research Institude, Nicosia, Northern Cyprus
| | - Meryem Guvenir
- Near East University, Vocational School of Health Sciences, Nicosia, Northern Cyprus
| | - Emrah Guler
- Near East University, Faculty of Medicine, Department of Medical Microbiology and Clinical Microbiology, Nicosia, Northern Cyprus
| | - Kaya Suer
- Near East University, Faculty of Medicine, Infectious Diseases and Clinical Microbiology, Nicosia, Northern Cyprus
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20
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Curukoglu A, Ergoren MC, Ozgencil FE, Sayiner S, Ince ME, Sanlidag T. First direct human-to-cat transmission of the SARS-CoV-2 B.1.1.7 variant. Aust Vet J 2021; 99:482-488. [PMID: 34322866 PMCID: PMC8444876 DOI: 10.1111/avj.13109] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 07/14/2021] [Indexed: 12/21/2022]
Abstract
A highly transmissible severe acute respiratory coronavirus 2 (SARS‐CoV‐2) caused the coronavirus diseases 2019 (COVID‐19) pandemic, which resulted the highest morbidity and mortality rates among SARS‐CoV and MERS‐CoV. SARS‐CoV‐2 B.1.1.7 variant indicated the higher transmission among human‐to‐human and increasing hospitalisation. SARS‐CoV‐2 infection was observed in domestic animals showing human‐to‐pet transmission. In the current study, we report the first direct known human‐to‐cat transmission of the SARS‐CoV‐2 B.1.1.7 variant within the same family. Previous findings showed that companion animals can get infected by COVID‐19 patients after 3–6 weeks; however, according to our molecular findings, the cat was infected by the viral variant at the same period. Moreover, B.1.1.7 infection caused and developed several clinical symptoms including cardiac and ocular abnormalities. Overall, our findings determined the first direct and high transmission ability of the B.1.1.7 variant from COVID‐19 affected family members to cat. This result showed that the SARS‐CoV‐2 B.1.1.7 variant could have the highest transition capacity from human to domestic cat as shown for human‐to‐human. The governmental or worldwide policies should consider more detailed against the war with COVID‐19 pandemic.
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Affiliation(s)
- A Curukoglu
- Faculty of Veterinary Medicine, Department of Surgery, Near East University, Nicosia, 99138, Cyprus
| | - M C Ergoren
- Faculty of Medicine, Department of Medical Genetics, Near East University, Nicosia, 99138, Cyprus.,DESAM Institute, Near East University, Nicosia, 99138, Cyprus
| | - F E Ozgencil
- Faculty of Veterinary Medicine, Department of Surgery, Near East University, Nicosia, 99138, Cyprus
| | - S Sayiner
- Faculty of Veterinary Medicine, Department of Biochemistry, Near East University, Nicosia, 99138, Cyprus
| | - M E Ince
- Faculty of Veterinary Medicine, Department of Cardiology, Near East University, Nicosia, 99138, Cyprus
| | - T Sanlidag
- DESAM Institute, Near East University, Nicosia, 99138, Cyprus
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21
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Sadeeq T, Arikan A, Sanlidag T, Guler E, Suer K. Big Concern for Public Health: Microbial Contamination of Mobile Phones. J Infect Dev Ctries 2021; 15:798-804. [PMID: 34242189 DOI: 10.3855/jidc.13708] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 12/10/2020] [Indexed: 10/31/2022] Open
Abstract
INTRODUCTION Mobile phones are dynamic source of microorganisms in households and professional settings. The aim was to determine the prevalence of bacterial contamination of the mobile phones, identify bacterial isolates, assess their antimicrobial susceptibility patterns and define the efficiency of using disinfectant. METHODOLOGY This study included 233 dental students from Near East University, Faculty of Dentistry. Swab samples taken from mobile phones before and after disinfection were inoculated onto 5% sheep blood medium and eosin methylene blue medium and incubated aerobically at 37°C for 24-48 hours. Mold-growing mix cultures were sub-cultured on the sabouraud dextrose medium and allowed to grow at room temperature. Conventional microbiological techniques and VITEK 2 automated identification system were used for bacterial identification and antimicrobial susceptibility testing. Antibiotic susceptibility tests were verified by Kirby-Bauer disc diffusion technique according to the European Antimicrobial Susceptibility Test Committee criteria. Mold colonies were identified macroscopic and microscopically according to their phenotypic properties using lacto-phenol cotton blue stain. RESULTS Microbial contamination of mobile phones was 81% (120.953 cfu/ml) in swab samples taken without using alcohol-based wipes however, microbial contamination in swab samples taken after one-time disinfection was determined to be 21% (201 cfu/ml). The most common microorganisms isolated were coagulase negative Staphylococci (69%) and Aspergillus niger (13%). All of the isolated bacteria were susceptible to all antibiotics used. CONCLUSIONS This study represents the first data on the rate of microbial contamination on mobile phones in Northern Cyprus and the efficiency of the use of alcohol to disinfect the mobile phones.
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Affiliation(s)
- Tara Sadeeq
- Near East University, Faculty of Medicine, Department of Medical Microbiology and Clinical Microbiology, Nicosia, Northern Cyprus
| | - Ayse Arikan
- Near East University, Faculty of Medicine, Department of Medical Microbiology and Clinical Microbiology, Nicosia, Northern Cyprus.
| | - Tamer Sanlidag
- Near East University, DESAM Institute, Nicosia, Northern Cyprus
| | - Emrah Guler
- Near East University, Faculty of Medicine, Department of Medical Microbiology and Clinical Microbiology, Nicosia, Northern Cyprus
| | - Kaya Suer
- Near East University, Faculty of Medicine, Department of Infectious Disease and Clinical Microbiology, Nicosia, Northern Cyprus
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22
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Baddal B, Sanlidag T, Uzun B, Uzun Ozsahin D. The use of double border-screening strategy in the surveillance and prevention of COVID-19. J Infect Public Health 2021; 14:757-758. [PMID: 34022733 PMCID: PMC8005380 DOI: 10.1016/j.jiph.2021.03.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/14/2021] [Accepted: 03/21/2021] [Indexed: 01/24/2023] Open
Affiliation(s)
- Buket Baddal
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus; DESAM Institute, Near East University, Nicosia, Cyprus.
| | | | - Berna Uzun
- DESAM Institute, Near East University, Nicosia, Cyprus; Department of Mathematics, Near East University, Nicosia, Cyprus
| | - Dilber Uzun Ozsahin
- DESAM Institute, Near East University, Nicosia, Cyprus; Department of Biomedical Engineering, Near East University, Nicosia, Cyprus
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23
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Baddal B, Bostanci A, Suer K, Sanlidag T. SARS-CoV-2 was already in circulation in Northern Cyprus in the prepandemic period. J Infect 2021; 83:e25-e26. [PMID: 33662407 PMCID: PMC7917476 DOI: 10.1016/j.jinf.2021.02.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 02/24/2021] [Accepted: 02/27/2021] [Indexed: 11/11/2022]
Affiliation(s)
- Buket Baddal
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus.
| | - Aysegul Bostanci
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Kaya Suer
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus
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24
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Sultanoglu N, Sanlidag T. Awareness, Practices and Attitudes Towards the SARS-CoV-2 Outbreak Among Northern Cyprus Residents: A Descriptive Research Using an Online Survey. mjima 2021. [DOI: 10.4274/mjima.galenos.2021.2020.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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25
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Paolacci S, Ceccarini MR, Codini M, Manara E, Tezzele S, Percio M, Capodicasa N, Kroni D, Dundar M, Ergoren MC, Sanlidag T, Beccari T, Farronato M, Farronato G, Tartaglia GM, Bertelli M. Pilot study for the evaluation of safety profile of a potential inhibitor of SARS-CoV-2 endocytosis. Acta Biomed 2020; 91:e2020009. [PMID: 33170175 PMCID: PMC8023122 DOI: 10.23750/abm.v91i13-s.10583] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 09/17/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIM OF THE WORK Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for the current pandemics of coronavirus disease. This virus is able to attack the cells of the airway epithelium by binding to the transmembrane angiotensin I converting enzyme 2 (ACE2). We developed an oral spray that could inhibit the SARS-CoV-2 endocytosis. The spray contains hydroxytyrosol for its anti-viral, anti-inflammatory and anti-oxidant properties, and α-cyclodextrin for its ability to deplete sphingolipids, that form the lipid rafts where ACE2 localizes. The aim of the present pilot multi-centric open non-controlled observational study was to evaluate the safety profile of the "Endovir Stop" spray. METHODS An MTT test was performed to evaluate cytotoxicity of the spray in two human cell lines. An oxygen radical absorbance capacity assay was performed to evaluate the antioxidant capacity of the spray. The spray was also tested on 87 healthy subjects on a voluntary basis. RESULTS The MTT test revealed that the spray is not cytotoxic. The ORAC assay showed a good antioxidant capacity for the spray. Endovir Stop tested on healthy volunteers showed the total absence of side effects and drug interactions during the treatment. CONCLUSIONS We demonstrated that Endovir Stop spray is safe. The next step would be the administration of the efficacy of the spray by testing it to a wider range of people and see whether there is a reduced infection rate of SARS-CoV-2 in the treated subjects than in the non-treated individuals.
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Affiliation(s)
| | | | - Michela Codini
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy.
| | | | | | | | | | | | - Munis Dundar
- Department of Medical Genetics, Erciyes University Faculty of Medicine, Kayseri, Turkey.
| | - Mahmut Cerkez Ergoren
- Department of Medical Biology, Faculty of Medicine, Near East University, Nicosia, Cyprus; DESAM Insitute, Near East University, Nicosia, Cyprus.
| | | | - Tommaso Beccari
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy.
| | - Marco Farronato
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan - Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy.
| | - Giampietro Farronato
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan - Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy.
| | - Gianluca Martino Tartaglia
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan - Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy.
| | - Matteo Bertelli
- MAGI'S LAB, Rovereto (TN), Italy; MAGI EUREGIO, Bolzano, Italy; EBTNA-LAB, Rovereto (TN), Italy.
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26
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Ergoren MC, Paolacci S, Manara E, Dautaj A, Dhuli K, Anpilogov K, Camilleri G, Suer HK, Sayan M, Tuncel G, Sultanoglu N, Farronato M, Tartaglia GM, Dundar M, Farronato G, Gunsel IS, Bertelli M, Sanlidag T. A pilot study on the preventative potential of alpha-cyclodextrin and hydroxytyrosol against SARS-CoV-2 transmission. Acta Biomed 2020; 91:e2020022. [PMID: 33170176 PMCID: PMC8023124 DOI: 10.23750/abm.v91i13-s.10817] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND AIM OF THE WORK Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for the current pandemics. This virus attacks the cells by binding to the transmembrane angiotensin I converting enzyme 2. In this study, we experimented a food supplement containing alpha-cyclodextrin and hydroxytyrosol for the improvement of the defenses against the SARS-CoV-2. Hydroxytyrosol has anti-viral properties and is able to reduce the serum lipids in mice. α-cyclodextrin has the ability to deplete sphingolipids and phospholipids from the cellular membranes. The aim of the present preliminary open non-controlled interventional study was to evaluate the efficacy of alpha-cyclodextrin and hydroxytyrosol in improving defenses against SARS-CoV-2. METHODS Fifty healthy volunteers at a higher risk of SARS-CoV-2 infection from Northern Cyprus and six positive individuals for SARS-CoV-2 were enrolled in this study. The in silico prediction was performed using D3DOCKING to evaluate the interactions of hydroxytyrosol and alpha-cyclodextrin with proteins involved in the SARS-CoV-2 endocytosis. RESULTS The 50 volunteers did not become positive in 15 days for SARS-CoV-2 after the administration of the compound for two weeks, despite they were at higher risk of infection than the general population. Interestingly, in the cohort of six positive patients, two patients were administered the spray and became negative after five days, despite the viral load was higher in the treated subjects than the untreated patients who became negative after ten days. In addition, we identified possible interactions among hydroxytyrosol and alpha-cyclodextrin with the protein Spike and the human proteins ACE2 and TMPRSS2. CONCLUSIONS We reported on the results of the possible role of alpha-cyclodextrin and hydroxytyrosol in improving defenses against SARS-CoV-2. The next step will be the administration of the compound to a larger cohort in a controlled study to confirm the reduction of the infection rate of SARS-CoV-2 in the treated subjects.
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Affiliation(s)
- Mahmut Cerkez Ergoren
- Department of Medical Biology, Faculty of Medicine, Near East University, Nicosia, Cyprus; DESAM Institute, Near East University, Nicosia, Cyprus.
| | | | | | | | | | | | | | - Huseyin Kaya Suer
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus.
| | - Murat Sayan
- DESAM Institute, Near East University, Nicosia, Cyprus; PCR Unit, Kocaeli University Hospital, Kocaeli, Turkey.
| | - Gulten Tuncel
- Department of Medical Biology, Faculty of Medicine, Near East University, Nicosia, Cyprus; DESAM Institute, Near East University, Nicosia, Cyprus.
| | | | - Marco Farronato
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan; Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy.
| | - Gianluca Martino Tartaglia
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan; Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy.
| | - Munis Dundar
- Department of Medical Genetics, Erciyes University Faculty of Medicine, Kayseri, Turkey.
| | - Giampietro Farronato
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan; Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy.
| | | | - Matteo Bertelli
- MAGI'S LAB, Rovereto (TN), Italy; MAGI EUREGIO, Bolzano, Italy; EBTNA-LAB, Rovereto (TN), Italy.
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27
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Sultanoglu N, Baddal B, Suer K, Sanlidag T. Current situation of COVID-19 in northern Cyprus. East Mediterr Health J 2020; 26:641-645. [PMID: 32621497 DOI: 10.26719/emhj.20.070] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 05/20/2020] [Indexed: 11/09/2022]
Abstract
Background The public health burden of the novel coronavirus disease 2019 (COVID-19) is expected to increase and urgent strict measures by decision-makers is critical for the containment of the novel coronavirus (SARS-CoV-2) outbreak worldwide. Aims This study aimed to give a real-time analysis of COVID-19 presence in northern Cyprus. Methods All official SARS-CoV-2 positive cases were tracked and reported in terms of the origin, nationality, and transmission routes. Preventive measures taken after the first reported case were analyzed for their effectiveness as control strategies. Results The index case of SARS-CoV-2 in northern Cyprus was identified as a female German tourist. First local case had travel history from the United Kingdom after which local transmission occurred. Rapid and strict containment measures have currently delayed a peak in observed cases. Conclusions Rapid implementation of social-distancing measures, good hygiene measures and travel/gathering bans in northern Cyprus has been effective in controlling the outbreak.
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Affiliation(s)
- Nazife Sultanoglu
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus.,DESAM Institute, Near East University, Nicosia, Cyprus
| | - Buket Baddal
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus.,DESAM Institute, Near East University, Nicosia, Cyprus
| | - Kaya Suer
- Department of Clinical Microbiology and Infectious Diseases, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Tamer Sanlidag
- DESAM Institute, Near East University, Nicosia, Cyprus.,Department of Medical Microbiology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
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28
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Affiliation(s)
- Ayse Seyer
- Department of Medical and Clinical Microbiology, Cyprus International University, Nicosia, 99258, Cyprus
| | - Tamer Sanlidag
- Department of Medical Microbiology, Celal Bayar University, Manisa, Turkey.,Experimental Health Sciences Research Institute, Near East University, Nicosia, Cyprus
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29
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Balaman N, Gazi U, Imir T, Sanlidag T, Ruh E, Tosun O, Ozkul A, Taylan-Ozkan A. Serological screening of West Nile virus among blood donors in northern Cyprus. J Med Virol 2020; 92:1035-1039. [PMID: 31925797 DOI: 10.1002/jmv.25669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 01/07/2020] [Indexed: 01/07/2023]
Abstract
BACKGROUND West Nile virus (WNV) is a neurotropic arbovirus that can also be transmitted through blood transfusion. Even though its geographic distribution has been expanding, there has not yet been any epidemiological data on WNV in northern Cyprus. The aim of our study is to fill this gap by using donated blood samples. METHODS Samples collected from the main government hospital blood bank in Nicosia were analyzed by anti-WNV enzyme-linked immunosorbent assay (ELISA) (immunoglobulin M [IgM] and immunoglobulin G [IgG]). Seropositive samples were subjected to plaque reduction neutralization test (PRNT) for confirmation and analyzed by ELISA IgG avidity test and reverse transcription real-time polymerase chain reaction (rRT-PCR). RESULTS Of the 760 sera samples, 2 (0.3%) were IgM+ and 31 (4.1%) were IgG+. Neutralization activity was detected in none (0.0%) of the IgM+ and 26 (83.9%) of IgG+ donor specimens. ELISA IgG avidity test reported high avidity in 21 (67.7%) and low avidity in one (3.2%) IgG+ sample. PRNT-confirmed anti-WNV IgG+ samples exhibited only borderline (19.2%) or high avidity (80.8%) values. rRT-PCR results were negative for both IgM+ and IgG+ samples. CONCLUSION Anti-WNV antibodies were detected in northern Cyprus among blood donors. The establishment of preventive measures and evaluation of the geographic extent of the WNV in northern Cyprus are highly recommended.
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Affiliation(s)
- Nagat Balaman
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Umut Gazi
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Turgut Imir
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Tamer Sanlidag
- Research Centre of Experimental Health Sciences, Near East University, Nicosia, Cyprus.,Department of Medical Microbiology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Emrah Ruh
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Ozgur Tosun
- Department of Biostatistics, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Aykut Ozkul
- Department of Virology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - Aysegul Taylan-Ozkan
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus.,Department of Medical Microbiology, Faculty of Medicine, Hitit University, Corum, Turkey
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30
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Arikan A, Arikan A, Sanlidag T, Sanlidag T, Guler E, Suer K. Rapid identification of seasonal influenza A and B virus in nasopharyngeal specimens in Northern Cyprus. J Biotechnol 2019. [DOI: 10.1016/j.jbiotec.2019.05.286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Adali T, Abibi A, Arikan A, Sanlidag T. Synthesis and Electrochemical Characterization of Silk Fibroin Micro/Nano Particles. J Biotechnol 2019. [DOI: 10.1016/j.jbiotec.2019.05.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Arikan A, Sayan M, Sanlidag T, Suer K, Akcali S, Guvenir M. Evaluation of the pol/S Gene Overlapping Mutations in Chronic Hepatitis B Patients in Northern Cyprus. Pol J Microbiol 2019; 68:317-322. [PMID: 31880877 PMCID: PMC7256834 DOI: 10.33073/pjm-2019-034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/18/2019] [Accepted: 05/13/2019] [Indexed: 02/06/2023] Open
Abstract
Mutations associated with the pol and the S gene can emerge as a consequence of the high replication capacity and proofreading deficiencies of hepatitis B virus during replication. The current study was constructed to evaluate primary, partial, compensatory and the escape mutations in chronic hepatitis B patients in Northern Cyprus. The samples of HBsAg positive treatment naïve 100 patients were involved in this study. HBV pol gene region was sequenced, amplified and HBV pol/S gene mutations were determined. The samples of thirty-two patients were excluded because of their low viral load (HBV < 1000 ıu/ml). Among the sequenced 68 samples, there was a partial mutation (1.5%) and 36.7% displayed a resistance profile to lamivudine, adevofir, and telbivudine. Immune response escape, vaccine escape, HBIg and diagnosis escape mutations were determined in 24%, 10%, 6%, and 4% samples of the patients, respectively. Additionally, there were six different combined mutations. These data underscored that there is no concern for primary mutations in Northern Cyprus, however, we have identified a compensatory mutation (rtV173M) that may have primary mutation characteristics by combining with other mutation patterns. Additionally, HBsAg escape mutants demonstrated that detection of the S gene together with the pol gene mutations might be beneficial and important to monitor the surveillance of S variants.
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Affiliation(s)
- Ayse Arikan
- Near East University, Faculty of Medicine, Medical Microbiology Department , Nicosia , Northern Cyprus ; Near East University, Research Center of Experimental Health Sciences , Nicosia , Northern Cyprus
| | - Murat Sayan
- Kocaeli University, Research and Education Hospital, Clinical Laboratory , PCR Unit , Kocaeli ; Near East University, Research Center of Experimental Health Sciences , Nicosia , Northern Cyprus
| | - Tamer Sanlidag
- Near East University, Research Center of Experimental Health Sciences , Nicosia , Northern Cyprus ; Manisa Celal Bayar University, Faculty of Medicine, Medical Microbiology Department , Manisa , Turkey
| | - Kaya Suer
- Near East University, Faculty of Medicine, Infectious Disease and Clinical Microbiology Department , Nicosia , Northern Cyprus
| | - Sinem Akcali
- Manisa Celal Bayar University, Faculty of Medicine, Medical Microbiology Department , Manisa , Turkey
| | - Meryem Guvenir
- Near East University, Vocational School of Health Services, Microbiology , Nicosia , Northern Cyprus
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33
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Sayan M, Arikan A, Sanlidag T. Comparison of Performance Characteristics of DxN VERIS System versus Qiagen PCR for HBV Genotype D and HCV Genotype 1b Quantification. Pol J Microbiol 2019; 68:139-143. [PMID: 31050262 PMCID: PMC7256835 DOI: 10.21307/pjm-2019-008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2018] [Indexed: 01/01/2023] Open
Abstract
The Beckman Coulter DxN VERIS system is a fully automated, closed molecular diagnostic instrument for viral load quantification of hepatitis B virus and hepatitis C virus. In this study, the analytical performance of this new system was compared to routine diagnostic Qiagen PCR kit by using the same clinical samples. The DxN VERIS system demonstrated a high analytical performance. The DxN VERIS allows random access, which means that samples can be uploaded straight on to the system at any time; so, it provides an improvement of workflow, staff productivity and allows faster turn-around of viral load results.
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Affiliation(s)
- Murat Sayan
- Kocaeli University, Faculty of Medicine, Clinical Laboratory, PCR Unit , Kocaeli , Turkey ; Near East University, Research Center of Experimental Health Sciences , Nicosia , Northern Cyprus
| | - Ayse Arikan
- Near East University, Research Center of Experimental Health Sciences , Nicosia , Northern Cyprus ; Near East University, Faculty of Medicine, Department of Medical Microbiology , Nicosia , Northern Cyprus
| | - Tamer Sanlidag
- Near East University, Research Center of Experimental Health Sciences , Nicosia , Northern Cyprus ; Celal Bayar University, Faculty of Medicine, Department of Medical Microbiology , Manisa , Turkey
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34
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Saad FT, Sanlidag T, Hincal E, Sayan M, Baba IA, Kaymakamzade B. Global Stability Analysis of HIV+ Model. 13th International Conference on Theory and Application of Fuzzy Systems and Soft Computing — ICAFS-2018 2019. [PMCID: PMC7122938 DOI: 10.1007/978-3-030-04164-9_109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We developed and studied a mathematical model of HIV+. Two equilibriums points were found, disease free and endemic equilibrium, and basic reproduction ratio \documentclass[12pt]{minimal}
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\begin{document}$$ R_{0} < 1 $$\end{document}R0<1, the disease free equilibrium is globally asymptotically stable, and disease dies out. On the other hand if \documentclass[12pt]{minimal}
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\begin{document}$$ R_{0} \ge 1 $$\end{document}R0≥1, the endemic equilibrium is globally asymptotically stable and epidemics occurs. Reported cases of 13646 HIV-1 positive were obtained in the year 2016 from Ministry of Health, Turkey (MOH). This data is used to present the numerical simulations, which supports the analytic result. \documentclass[12pt]{minimal}
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\begin{document}$$ R_{0} $$\end{document}R0 was found to be 1.98998, which is bigger than 1, this shows the threat posed by HIV in Turkey.
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Sayan M, Sayan M, Sanlidag T, Sanlidag T, Arikan A, Arikan A. Analytical performance of DxN Veris system in the viral load quantification of Hepatitis C virus. J Biotechnol 2017. [DOI: 10.1016/j.jbiotec.2017.06.1102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Abstract
OBJECTIVES The aims of this study were to determine the association between adenovirus-5- and adenovirus-36-specific antibodies and obesity in children and to investigate their relationship with serum lipid and leptin levels. METHODS A cross-sectional study was performed on a total of 120 children who were divided into subgroups according to body mass index percentile as obese (≥ 95th percentile) or nonobese (<95th percentile). The presence of adenovirus-36 and adenovirus-5-neutralizing antibodies was investigated by using the serum neutralization assay. Serum leptin levels were determined by microenzyme immonoassay; high-density lipoprotein, low-density lipoprotein, triglyceride, and cholesterol levels were measured by chemiluminescence method. RESULTS The presence of adenovirus-5-specific antibodies was 28.3% and 6.6% in the obese children and in non-obese children, respectively (P = 0.02). The frequency of adenovirus-36-specific antibodies was significantly greater (P = 0.018) in the obese children (26.6%) than in the non-obese children (10.0%). Serum leptin level of the obese group were significantly higher than that of the non-obese group (P = 0.000). CONCLUSIONS Our data support the association between obesity and the presence of specific antibodies to adenovirus-36 and adenovirus-5 in children. Our research has the feature of being the first national study to indicate the relationship between adenovirus-36 and human obesity as well as the first international study to indicate the relationship between adenovirus-5 and human obesity.
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Affiliation(s)
- Elcin Kal Cakmakliogullari
- From the *Department of Medical Microbiology, Karabuk State Hospital; Departments of †Medical Microbiology, ‡Pediatrics, and §Medical Biochemistry, Faculty of Medicine, Celal Bayar University, Manisa; and ∥Department of Medical Microbiology, Faculty of Medicine, Ege University, Ýzmir, Turkey
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Ayaz C, Yardimci C, Candir N, Ersoz G, Sanlidag T, Tigli A, Turken M. Management of Chronic Hepatitis D Virus Infection: A Consensus Report of the Study Group for Viral Hepatitis of the Turkish Society of Clinical Microbiology and Infectious Diseases. Klimik Dergisi 2015. [DOI: 10.5152/kd.2014.28] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Sanlidag T, Akcali S, Vatansever S, Cicek C, Sayan M, Cakmakliogullari EK, Taskiran Sen P. Investigation of adipogenic effects of human adenovirus serotypes 36 and 5 in a Colo-320 cell line. Future Virol 2013. [DOI: 10.2217/fvl.13.39] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aim: We aimed to investigate the adipogenic effects of adenovirus (Ad) serotypes 5, 36 and 8 in a Colo-320 cell line using histochemical, immunohistochemical and electron microscopic methods. Materials & methods: Ad serotypes were inoculated in a Colo-320 cell line and were cultured for 14 days. They were then collected and fixed with 4% paraformaldehyde to analyze their adipogenic effects using histochemistry, immunohistochemistry and electron microscopic methods. Intracellular lipid droplets were detected in the Colo-320 cells inoculated with Ad36 and Ad5 by electron microscopic analyses. Results: After Oil Red O staining, the pink–orange staining was positive intracellularly in Colo-320 cells infected with Ad36 and Ad5. In addition, the leptin immunoreactivity was also positive in these cells. Conclusion: Our results suggested that intracellular lipid accumulation occured after infection with Ad36 and Ad5. The positive staining of Oil Red O and leptin also supported the electron microscopic results; therefore, we conclude that this accumulation occurred due to adipogenic effects of Ad36 and Ad5.
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Affiliation(s)
- Tamer Sanlidag
- Department of Medical Microbiology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey.
| | - Sinem Akcali
- Department of Medical Microbiology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Seda Vatansever
- Department of Histology–Embryology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Candan Cicek
- Department of Medical Microbiology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Murat Sayan
- Kocaeli University Hospital, Clinical Laboratory, PCR Unit, Umuttepe Campus, Izmit, Kocaeli 41380, Turkey
| | | | - Pinar Taskiran Sen
- Department of Medical Microbiology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
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Akcali S, Goker A, Ecemis T, Kandiloglu AR, Sanlidag T. Human Papilloma Virus Frequency and Genotype Distribution in a Turkish Population. Asian Pac J Cancer Prev 2013; 14:503-6. [DOI: 10.7314/apjcp.2013.14.1.503] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Affiliation(s)
- Ozan Pabuccuoglu
- Department of Medical Microbiology, Faculty of Medicine, Celal Bayar University, Turkey
| | - Talat Ecemis
- Department of Medical Microbiology, Faculty of Medicine, Celal Bayar University, Turkey
| | - Sibel El
- Department of Infectious Disease and Clinical Microbiology, Atatürk Education and Research Hospital, Turkey
| | - Abdullah Coskun
- Department of Infectious Disease and Clinical Microbiology, State Hospital, Turkey
| | - Sinem Akcali
- Department of Medical Microbiology, Faculty of Medicine, Celal Bayar University, Turkey
| | - Tamer Sanlidag
- Department of Medical Microbiology, Faculty of Medicine, Celal Bayar University, Turkey
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Gazi H, Surucuoglu S, Yolasigmaz G, Sen M, Akcali S, Dinc G, Teker A, Sanlidag T, Koroğlu G. Prevalence of Chlamydia trachomatis/Neisseria gonorrhoeae and human papilloma virus among women-at risk in the Aegian region of Turkey, and their knowledge about HIV/AIDS. W INDIAN MED J 2008; 57:398-402. [PMID: 19566023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
BACKGROUND The aim of this study was to determine the prevalence of selected sexually transmitted diseases (STDs) and the level of knowledge and attitudes regarding HIV/AIDS among Turkish brothel based sex-workers (SWs). SUBJECTS AND METHODS A pre-designed questionnaire was administered to 199 SWs to obtain their sexual behaviours and their level of knowledge of HIV/AIDS. The specimens collected for C trachomatis/N gonorrhoeae and human papillomavirus (HPV) were tested using Gen-Probe PACE 2 and HPV-screening assays, respectively. RESULT Aproximately sixty-seven per cent of the SWs knew that condoms afforded protection against HIV/AIDS and 62% reported continued use of condoms. Although most of the SWs had heard about HIV/AIDS, thorough knowledge of transmission and prevention was lacking. The overall estimated rates for C trachomatis/N gonorrhoeae and HPV were 18.6% and 9.7%, respectively. CONCLUSION There is a need for further studies to generate more data on the prevalence of STDs and the knowledge of STDs in this population.
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Affiliation(s)
- H Gazi
- Department of Microbiology and Clinical Microbiology, Celal Bayar University Medicine Faculty, Manisa-Turkey.
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Abstract
BACKGROUND Helicobacter pylori infection has been proposed to have a role in the development of atherosclerosis preceded by endothelial dysfunction. The aim of the present study was to determine if a relationship exists between H. pylori infection in childhood and endothelial dysfunction and level of high-sensitivity C-reactive protein (hsCRP). METHODS Between October 2003 and November 2004, 28 subjects who were anti-H. pylori IgG-positive and 25 who were anti-H. pylori IgG-negative were included in the study. Mean ages of the H. pylori-positive and negative groups were not significantly different. Endothelial functions were evaluated on Doppler ultrasonography of the brachial artery. Percent ratio of the change in systolic diameter during hyperemic phase to the basal diameter was evaluated. Each subject's serum was tested for hsCRP, homocysteine and lipids. RESULTS Percent ratio of the change in systolic diameters during hyperemic phase to the basal diameter was not significantly different between the H. pylori-negative and -positive groups (P > 0.29). Mean levels of hsCRP were also not significantly different (1.48 +/- 1.8 g/dL vs 2.35 +/- 3.33 g/dL; P > 0.24). Similarly, serum levels of lipids and homocysteine were not significantly different (P > 0.05 for all lipids). CONCLUSIONS Non-invasive techniques used in the present study were not indicative of early findings of atherosclerosis in H. pylori infection during childhood. Further studies are required to evaluate the relationship between early endothelial dysfunction and H. pylori infection in children with cardiovascular risk factors.
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Affiliation(s)
- Senol Coskun
- Department of Pediatric Cardiology, Celal Bayar University, Manisa, Turkey
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Akcali S, Sanlidag T, Ozbakkaloglu B. Prevalence of GBV-C/hepatitis G virus viremia among chronic hepatitis B, chronic hepatitis C and hemodialysis patients in Turkey. Ann Saudi Med 2006; 26:68-9. [PMID: 16521883 PMCID: PMC6078560 DOI: 10.5144/0256-4947.2006.68] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Abstract
BACKGROUND The pathogenic role of TT virus (TTV) is not clear in patients with chronic hepatitis B. The aims of the present study were to determine the frequency of TTV positivity in serum and saliva samples and the possible role of TTV in children with chronic hepatitis B. METHODS Sera and saliva from 29 healthy children and 25 children with chronic hepatitis B were tested for TTV-DNA by means of real-time polymerase chain reaction (PCR). RESULTS Fifty-two percent (13/25) of the serum samples and 32% (8/25) of the saliva samples were positive for TTV-DNA in children with chronic hepatitis B. In healthy non-transfused children, TTV-DNA was detected in 58% (17/29) of the serum samples and 41% (12/29) of the saliva samples. Six (46%) of 13 children with chronic hepatitis and 10 (59%) of 17 healthy children had TTV-DNA positivity both in serum and saliva samples. Two serum samples were negative for TTV-DNA while the saliva samples were positive for TTV-DNA in chronic hepatitis B and control groups. Mean age, sex, serum alanine aminotransferase levels, hepatitis B virus (HBV)-DNA values were similar in TTV-positive and -negative children with chronic hepatitis B. However, total histologic activity index (HAI), periportal necrosis and portal inflammation scores were significantly higher in children with HBV-DNA and TTV-DNA viremia (P = 0.013, P = 0.008, P = 0.015, respectively). CONCLUSIONS Because total HAI, periportal necrosis and portal inflammation scores were higher in children with TTV coinfection, TTV infection may contribute to the progression of liver damage in children with chronic hepatitis B.
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Affiliation(s)
- Erhun Kasirga
- Department of Pediatric Gastroenterology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey.
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Sanlidag T, Akcali S, Ozbakkaloglu B. Serum hepatitis B DNA: stability in relation to multiple freeze-thaw procedures. J Virol Methods 2005; 123:49-52. [PMID: 15582698 DOI: 10.1016/j.jviromet.2004.09.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2004] [Revised: 08/20/2004] [Accepted: 09/07/2004] [Indexed: 10/26/2022]
Abstract
Quantitation of hepatitis B virus (HBV) DNA is often performed in specimens that have been frozen and thawed more than once. It is important to establish whether viral load measurements are affected by repeated freeze-thaw cycles. The effect of multiple freeze-thaw cycles on HBV DNA quantitation was carried out by testing serum specimens subjected to 1 (baseline) to 10 cycles with the appropriate Digene Hybrid Capture System. Five HBV DNA-positive samples were selected at random from sera with concentrations ranging from 7 pg/ml to 3529 pg/ml and they were frozen and thawed up to 10 cycles and then tested for changes in HBV DNA levels. Negative control and positive standards were tested in triplicate; and all specimens were tested in duplicate. The stability of HBV DNA in serum was evaluated by scattergram analysis by determining the number of samples showing a > or =20% change in HBV DNA levels after freeze-thaw cycles. With the exception of one sample (7 pg/ml) 10 cycles of freezing and thawing did not change significantly the HBV DNA quantity in any of the samples tested. The results showed that the quantity of HBV DNA in four of five serum specimens subjected up to 10 freeze-thaw cycles was stable.
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Affiliation(s)
- Tamer Sanlidag
- Celal Bayar University, School of Medicine, Department of Microbiology and Clinical Microbiology, Manisa, Turkey.
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Tekin I, Arican I, Akcali S, Sanlidag T, Ozbakkaloglu B. Effects of different disinfectants on decontamination of laryngoscopes. Middle East J Anaesthesiol 2003; 17:371-8. [PMID: 14740591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Guidelines for controlling possible contamination of laryngoscopes should be formulated with the benefit of relevant experimental data. In this study, the effects of five different disinfectants commonly used for the disinfection of laryngoscopes are evaluated. We formed 14 groups, with 10 blades in each. The first 7 groups were contaminated with hospital related meticillin resistant Staphylococcus aureus (MRSA), and the remaining 7 groups with hospital related multiple resistant Pseudomonas aeruginosa (PA). For the first group of blades, no disinfection procedure was carried out and, were assumed as a control group. Blades in remaining groups were rested for 10 minutes in containers containing 70% alcohol (II), 1/100 dilution of cetrimide (III), 1/100 dilution of chlorhexidine (IV), 1/10 dilution of chlorhexidine (V), 1/10 dilution of povidone iodine (VI), and 1/100 dilution of ammonium chloride (VII). Disinfectant used in a group was considered effective when growth was seen in 5 or less than 5 plates representing that group. All disenfectants tested were found effective on decontamination of laryngoscopes. Five different moderate level disinfectants, which are commonly used for the disinfection of laryngoscopes, have been found effective even on resistant hospital microorganisms like MRSA and P. aeruginosa. They may be the choices of the disinfectants, especially 1/10 dilution of chlorhexidine gluconate and 1/100 dilution of ammonium chloride.
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Affiliation(s)
- I Tekin
- Department of Anaesthesia & Intensive Care, Celal Bayar University, Turkey.
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Soylu A, Sanlidag T, Türkmen M, Cakir N, Kavukçu S. Evaluation of the resistance induction in enteric flora in children caused by oral ampicillin plus sulbactam. J Antimicrob Chemother 1997; 39:833-5. [PMID: 9222058 DOI: 10.1093/jac/39.6.833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
To evaluate the effect on bacterial resistance of a beta-lactamase inhibitor, resistance patterns of predominant bacteria in enteric flora were evaluated before and after a 7-day course of oral ampicillin (100 mg/kg/days, qid, in 16 patients) and ampicillin-sulbactam (50 mg/kg/day of ampicillin, bd, in 32 patients) therapy. Ampicillin and ampicillin-sulbactam MICs for Escherichia coli, the predominant bacteria in all cases, and resistance rates of E. coli species to both antibiotics were 51.20 +/- 13.80 mg/L, 87.5% and 4.84 +/- 2.11 mg/L, 21% before the treatment respectively. Post-treatment MICs and resistance rates were 106.51 +/- 14.05 mg/L, 100% and 15.89 +/- 5.76 mg/L, 37.5% respectively, indicating a significant increase in MICs of both antibiotics (P < 0.05), being more prominent in the case of ampicillin-sulbactam (about four-fold). We concluded that oral ampicillin-sulbactam could also decrease the susceptibility of the enteric flora to ampicillin.
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Affiliation(s)
- A Soylu
- Department of Pediatrics, Dokuz Eylül University, Faculty of Medicine,Izmir, Turkey
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