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  1. Article: The impact of dietary fructose on gut permeability, microbiota, abdominal adiposity, insulin signaling and reproductive function.

    Guney, Ceren / Bal, Nur Banu / Akar, Fatma

    Heliyon

    2023  Volume 9, Issue 8, Page(s) e18896

    Abstract: The excessive intake of fructose in the regular human diet could be related to global increases in metabolic disorders. Sugar-sweetened soft drinks, mostly consumed by children, adolescents, and young adults, are the main source of added fructose. ... ...

    Abstract The excessive intake of fructose in the regular human diet could be related to global increases in metabolic disorders. Sugar-sweetened soft drinks, mostly consumed by children, adolescents, and young adults, are the main source of added fructose. Dietary high-fructose can increase intestinal permeability and circulatory endotoxin by changing the gut barrier function and microbial composition. Excess fructose transports to the liver and then triggers inflammation as well as
    Language English
    Publishing date 2023-08-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e18896
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Myricetin May Improve Cardiac Dysfunction Possibly Through Regulating Blood Pressure and Cellular Stress Molecules in High-Fructose-Fed Rats.

    Bal, Nur Banu / Güney, Ceren / Yıldırım, Onur Gökhan / Akar, Fatma / Demirel-Yılmaz, Emine

    Anatolian journal of cardiology

    2024  Volume 28, Issue 1, Page(s) 55–64

    Abstract: Background: The aim of this study was to examine the effect of myricetin on cardiac dysfunction caused by high fructose intake.: Methods: Fructose was given to the rats as a 20% solution in drinking water for 15 weeks. Myricetin was administered by ... ...

    Abstract Background: The aim of this study was to examine the effect of myricetin on cardiac dysfunction caused by high fructose intake.
    Methods: Fructose was given to the rats as a 20% solution in drinking water for 15 weeks. Myricetin was administered by oral gavage for the last 6 weeks. Systolic blood pressure was measured by tail-cuff method. The effects of isoprenaline, phenylephrine, and acetylcholine on cardiac contractility and rhythmicity were recorded in the isolated right atrium and left ventricular papillary muscles. In addition to biochemical measurements, the cardiac expressions of cellular stress-related proteins were determined by western blotting.
    Results: Myricetin improved systolic blood pressure but did not affect body weight, plasma glucose, and triglyceride levels in fructose-fed rats. The impairment of isoprenaline- and phenylephrine-mediated increases in atrial contraction and sinus rate in fructose-fed rats was restored by myricetin treatment. Isoprenaline, phenylephrine, and acetylcholine-mediated papillary muscle contractions were not changed by fructose or myricetin administration. The expression of the mitochondrial fission marker dynamin-related protein 1 and the mitophagic marker PTEN-induced kinase 1 (PINK1) was enhanced in the fructose-fed rat, and myricetin treatment markedly attenuated PINK1 expression. High-fructose intake augmented phosphorylation of the proinflammatory molecule Nuclear factor kappa B (NF-κB) and the stress-regulated kinase JNK1, but myricetin only reduced NF-κB expression. Moreover, myricetin diminished the elevation in the expression of the pro-apoptotic Bax.
    Conclusion: Our results imply that myricetin has a protective role in cardiac irregularities induced by a high-fructose diet through reducing systolic blood pressure, improving cardiac adrenergic responses, suppressing PINK1, NF-κB, and Bax expression, and thus reflecting a potential therapeutic value.
    MeSH term(s) Rats ; Animals ; Blood Pressure ; NF-kappa B/metabolism ; Acetylcholine/pharmacology ; Fructose ; Isoproterenol ; bcl-2-Associated X Protein/pharmacology ; Phenylephrine/pharmacology ; Heart Diseases ; Protein Kinases/pharmacology
    Chemical Substances myricetin (76XC01FTOJ) ; NF-kappa B ; Acetylcholine (N9YNS0M02X) ; Fructose (30237-26-4) ; Isoproterenol (L628TT009W) ; bcl-2-Associated X Protein ; Phenylephrine (1WS297W6MV) ; Protein Kinases (EC 2.7.-)
    Language English
    Publishing date 2024-01-02
    Publishing country Turkey
    Document type Journal Article
    ZDB-ID 2278670-3
    ISSN 2149-2271 ; 2149-2271
    ISSN (online) 2149-2271
    ISSN 2149-2271
    DOI 10.14744/AnatolJCardiol.2023.3866
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  3. Article ; Online: Epithelial and Endothelial Expressions of ACE2: SARS-CoV-2 Entry Routes.

    Guney, Ceren / Akar, Fatma

    Journal of pharmacy & pharmaceutical sciences : a publication of the Canadian Society for Pharmaceutical Sciences, Societe canadienne des sciences pharmaceutiques

    2021  Volume 24, Page(s) 84–93

    Abstract: Angiotensin converting enzyme 2 (ACE2) is a main receptor for SARS-CoV-2 entry to the host cell. ACE2 is one of the key enzymes in renin-angiotensin system and plays a vital role in the maintenance of cardiovascular function. ACE/ACE2 balance is critical ...

    Abstract Angiotensin converting enzyme 2 (ACE2) is a main receptor for SARS-CoV-2 entry to the host cell. ACE2 is one of the key enzymes in renin-angiotensin system and plays a vital role in the maintenance of cardiovascular function. ACE/ACE2 balance is critical in the regulation of blood pressure, electrolyte homeostasis, vascular and cardiac remodeling and inflammation. ACE2 was shown to be abundantly present in human epithelial cells of the lung and enterocytes of the small intestine as well as in endothelial cells of the arterial and venous vessels. ACE2 and TMPRSS2 are colocalized on the cell surface and produced a critical step host cell entry of SARS-CoV-2. TMPRSS2-cleaved ACE2 permits SARS-CoV-2 host cell entry however, ADAM17-cleaved ACE2 produces protective effects in several organs. Differently, basigin (CD147) was suggested as a putative alternate receptor for SARS-CoV-2 entry into endothelial cells. The intestinal ACE2 receptor is associated with the neutral amino acid transporter B0AT1 and ACE2 is necessary for the expression of this transporter on the luminal surface of intestinal epithelial cells. There is a good association between the localization of SARS-CoV-2 binding receptor ACE2 and the disease target organs in respiratory, cardiovascular and gastrointestinal systems. Decreased expression of ACE2, being a receptor for coronavirus, would prevent cellular entry of the virus thereby reducing progression of the infection. However, increased ACE2 expression produces beneficial health effects. Further studies are needed to clarify this conflicting situation. Currently, it is recommended to continue the therapy with ACE2-increasing drugs in patients with COVID-19.
    MeSH term(s) Angiotensin-Converting Enzyme 2/metabolism ; Animals ; COVID-19/enzymology ; COVID-19/virology ; Endothelial Cells/enzymology ; Endothelial Cells/virology ; Epithelial Cells/enzymology ; Epithelial Cells/virology ; Host-Pathogen Interactions ; Humans ; Receptors, Virus/metabolism ; SARS-CoV-2/pathogenicity ; Signal Transduction ; Virus Internalization
    Chemical Substances Receptors, Virus ; ACE2 protein, human (EC 3.4.17.23) ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23)
    Language English
    Publishing date 2021-02-24
    Publishing country Canada
    Document type Journal Article ; Review
    ISSN 1482-1826
    ISSN (online) 1482-1826
    DOI 10.18433/jpps31455
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: High-fructose consumption suppresses insulin signaling pathway accompanied by activation of macrophage and apoptotic markers in rat testis.

    Yildirim, Onur Gökhan / Guney, Ceren / Alcigir, Mehmet Eray / Akar, Fatma

    Reproductive biology

    2023  Volume 23, Issue 4, Page(s) 100815

    Abstract: Dietary high-fructose may cause metabolic disturbances; however, its effect on the reproductive system is little understood. The insulin signaling pathway is critical in testicular development, maintenance of microcirculation and spermatogenesis. ... ...

    Abstract Dietary high-fructose may cause metabolic disturbances; however, its effect on the reproductive system is little understood. The insulin signaling pathway is critical in testicular development, maintenance of microcirculation and spermatogenesis. Therefore, in this study, we aimed to investigate the impact of dietary high-fructose on insulin signaling pathway as well as macrophage and apoptotic markers in testicular tissue of rats. Fructose was administered to male Wistar rats as a 20% solution in drinking water for fifteen-week. Gene expression of ir-β, irs-1, irs-2, pi3k, akt, mtor, and enos in the testicular samples was determined by real-time PCR. Protein expression of IR, IRS-1, IRS-2, PI3K, Akt, phospho-Akt (p-Akt), mTOR, eNOS, phospho-eNOS (p-eNOS), and GLUT5 was established by analysis of Western Blot. Testicular expression of occludin, CD163, CD68, caspase-8, and caspase-3 was analyzed by using immunohistochemical assay. Testicular level of fructose was measured by colorimetric method. Dietary high-fructose decreased mRNA expressions of irs-1, irs-2, pi3k, and mtor in the testicular tissue of rats. Also, this dietary intervention impaired protein expressions of IR, IRS-1, IRS-2, PI3K, p-Akt, mTOR, eNOS, and p-eNOS as well as p-Akt/Akt and p-eNOS/eNOS ratios in the testis of rats. However, a high-fructose diet increased the expression of CD163, CD68, caspase-8 and caspase-3, but decreased that of occludin, in the testicular tissue of rats. The high-fructose consumption in rats suppresses testicular insulin signaling but activates macrophages-related factors and apoptotic markers. These changes induced by dietary fructose could be related to male reproductive dysfunction.
    MeSH term(s) Rats ; Male ; Animals ; Insulin/pharmacology ; Proto-Oncogene Proteins c-akt/metabolism ; Fructose/pharmacology ; Rats, Wistar ; Caspase 3/metabolism ; Caspase 8/metabolism ; Caspase 8/pharmacology ; Testis/metabolism ; Occludin/metabolism ; Occludin/pharmacology ; Signal Transduction ; Phosphatidylinositol 3-Kinases/metabolism ; TOR Serine-Threonine Kinases/metabolism
    Chemical Substances Insulin ; Proto-Oncogene Proteins c-akt (EC 2.7.11.1) ; Fructose (30237-26-4) ; Caspase 3 (EC 3.4.22.-) ; Caspase 8 (EC 3.4.22.-) ; Occludin ; Phosphatidylinositol 3-Kinases (EC 2.7.1.-) ; TOR Serine-Threonine Kinases (EC 2.7.11.1)
    Language English
    Publishing date 2023-10-14
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 2189316-0
    ISSN 2300-732X ; 1642-431X
    ISSN (online) 2300-732X
    ISSN 1642-431X
    DOI 10.1016/j.repbio.2023.100815
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  5. Article ; Online: BRCA Mutations and MicroRNA Expression Patterns in the Peripheral Blood of Breast Cancer Patients.

    Alavanda, Ceren / Dirimtekin, Esra / Mortoglou, Maria / Arslan Ates, Esra / Guney, Ahmet Ilter / Uysal-Onganer, Pinar

    ACS omega

    2024  Volume 9, Issue 15, Page(s) 17217–17228

    Abstract: Breast cancer (BC) persists as the predominant malignancy globally, standing as the foremost cause of cancer-related mortality among women. Despite notable advancements in prevention and treatment, encompassing the incorporation of targeted ... ...

    Abstract Breast cancer (BC) persists as the predominant malignancy globally, standing as the foremost cause of cancer-related mortality among women. Despite notable advancements in prevention and treatment, encompassing the incorporation of targeted immunotherapies, a continued imperative exists for the development of innovative methodologies. These methodologies would facilitate the identification of women at heightened risk, enhance the optimization of therapeutic approaches, and enable the vigilant monitoring of emergent treatment resistance. Circulating microRNAs (miRNAs), found either freely circulating in the bloodstream or encapsulated within extracellular vesicles, have exhibited substantial promise for diverse clinical applications. These applications range from diagnostic and prognostic assessments to predictive purposes. This study aimed to explore the potential associations between
    Language English
    Publishing date 2024-04-03
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.3c10086
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  6. Article ; Online: miR-34a-FOXP1 Loop in Ovarian Cancer.

    Dirimtekin, Esra / Mortoglou, Maria / Alavanda, Ceren / Benomar Yemlahi, Asmaa / Arslan Ates, Esra / Guney, Ilter / Uysal-Onganer, Pinar

    ACS omega

    2023  Volume 8, Issue 30, Page(s) 27743–27750

    Abstract: Ovarian cancer (OC) is the main cause of gynecological cancer mortality in most developed countries. microRNA (miR) expression dysregulation has been highlighted in human cancers, and miR-34a is found to be downregulated and associated with inhibition of ...

    Abstract Ovarian cancer (OC) is the main cause of gynecological cancer mortality in most developed countries. microRNA (miR) expression dysregulation has been highlighted in human cancers, and miR-34a is found to be downregulated and associated with inhibition of tumor growth and invasion in several malignancies, including OC. The winged helix transcription factor forkhead box P1 (FOXP1) is reported as either an oncogene or tumor suppressor in various cancers. This study aimed to elucidate potential clinical and biological associations of miR-34a and transcription factor FOXP1 in OC. We investigated nine OC patients' blood samples and two OC cell lines (SKOV-3 and OVCAR-3) using quantitative real-time reverse transcription polymerase chain reaction (RT-qPCR) to determine both miR-34a and FOXP1 expressions. We have found that miR-34a and FOXP1 are reversely correlated in both in vitro and in vivo. Inhibition of miR-34a transiently led to upregulation of FOXP1 mRNA expression and increased cellular invasion in vitro. Our data indicate that miR-34a could be a potential biomarker for improving the diagnostic efficiency of OC, and miR-34a overexpression may reduce OC pathogenesis by targeting FOXP1.
    Language English
    Publishing date 2023-07-18
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.3c03867
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  7. Article: Multigene Panel Testing in Turkish Hereditary Cancer Syndrome Patients.

    Arslan Ates, Esra / Turkyilmaz, Ayberk / Alavanda, Ceren / Yildirim, Ozlem / Guney, Ahmet Ilter

    Medeniyet medical journal

    2022  Volume 37, Issue 2, Page(s) 150–158

    Abstract: Objective: Hereditary cancer syndromes (HCSs) are a heterogenous group of disorders caused by germline pathogenic variations in various genes that function in cell growth and proliferation. This study aimed to describe the germline variations in ... ...

    Abstract Objective: Hereditary cancer syndromes (HCSs) are a heterogenous group of disorders caused by germline pathogenic variations in various genes that function in cell growth and proliferation. This study aimed to describe the germline variations in patients with hereditary cancer using multigene panels.
    Methods: The molecular and clinical findings of 218 patients with HCS were evaluated. In addition, 25 HCS-related genes were sequenced using a multigene panel, and variations were classified according to the American College of Medical Genetics and Genomics (ACMG) criteria. In total, 218 HCS patients predominantly with breast, colorectal, ovarian, gastric, and endometrium cancers were included.
    Results: Pathogenic variations in 12 distinct genes were detected in 36 of 218 (16.5%) cases. In this study, the most affected gene was the ATM gene, in which pathogenic variations were detected in 8 of 218 cases, followed by CHEK2 (3.2%), MUTYH (3.2%), BRIP1 (1.8%), BARD1 (0.9%), TP53 (0.9%), PALB2 (0.4%), MLH1 (0.4%), MSH2 (0.4%), PMS2 (0.4%), RAD50 (0.4%), and RAD51C (0.4%).
    Conclusions: This study contributes to genotype-phenotype correlation in HCSs and expands the variation spectrum by introducing three novel pathogenic variations. The wide spectrum of the gene pathogenic variations detected and the presence of multiple gene defects in the same patient make the multigene panel testing a valuable tool in detecting the hereditary forms of cancer and providing effective genetic counseling and family specific screening strategies.
    Amaç: Herediter kanser sendromları (HCS) hücre büyümesi ve proliferasyonunda görevli genlerde saptanan germline mutasyonlardan kaynaklanan heterojen bir grup hastalıktır. Bu çalışmada kalıtımsal kanser sendrom ön tanısıyla değerlendirilen olgularda çoklu gen paneli ile germ hattı varyasyonlarının değerlendirilmesi planlanmıştır.
    Yöntemler: Kalıtımsal kanser sendromu düşünülen 218 olgudan periferik kandan DNA izolasyonu sonrası HCS ile ilişkili 25 gen multigen panel kullanılarak dizilendi ve varyasyonlar American College of Medical Genetics and Genomics (ACMG) kriterlerine göre değerlendirildi.
    Bulgular: Meme, kolorektal, over, gastrik ve endometriyum kanseri başta olmak üzere toplam 218 herediter kanser sendromlu olgu değerlendirildi. Tüm çalışma grubu incelendiğinde en sık ATM gen varyasyonları (8/218, %3,6) tespit edildi ve bunu sıklık sırasına göre CHEK2 (%3,2), MUTYH (%3,2), BRIP1 (%1,8), BARD1 (%0,9), TP53 (%0,9), PALB2 (%0,4), MLH1 (%0,4), MSH2 (%0,4), PMS2 (%0,4), RAD50 (%0,4), RAD51C (%0,4) varyasyonları takip etmekteydi.
    Sonuçlar: Bu çalışmada farklı kanser türlerinde kalıtımsal kansere yol açan genler analiz edilmiş ve fenotiple ilişkisi değerlendirilmiştir. Ayrıca bu çalışmada ilk kez saptanan üç yeni varyasyon ile literatüre katkı sağlanmaktadır. Patojenik varyasyon tespit edilen genlerin geniş dağılımı ve aynı hastada birden fazla genetik varyasyonun varlığı düşünüldüğünde, uygun genetik danışma ve aileye özgü tarama planlaması yapmak için çoklu gen taraması kalıtımsal kanser hastalarının değerlendirilmesinde hızlı ve etkin bir yöntem olarak görünmektedir.
    Language English
    Publishing date 2022-06-23
    Publishing country Turkey
    Document type Journal Article
    ZDB-ID 3035195-9
    ISSN 2149-4606 ; 2149-2042
    ISSN (online) 2149-4606
    ISSN 2149-2042
    DOI 10.4274/MMJ.galenos.2022.22556
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  8. Article ; Online: Mutation Spectrum of Familial Adenomatous Polyposis Patients in Turkish Population: Identification of 3 Novel APC Mutations.

    Arslan Ateş, Esra / Alavanda, Ceren / Demir, Şenol / Keklikkıran, Çağlayan / Attaallah, Wafi / Özdoğan, Osman Cavit / Güney, Ahmet İlter

    The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology

    2022  Volume 33, Issue 2, Page(s) 81–87

    Abstract: Background: Familial adenomatous polyposis (OMIM #175100) and MUTYH-associated polyposis (OMIM #608456) are rare cancerprone disorders characterized by hundreds of adenomatous polyps in the colon and rectum, which have a high probability of malignant ... ...

    Abstract Background: Familial adenomatous polyposis (OMIM #175100) and MUTYH-associated polyposis (OMIM #608456) are rare cancerprone disorders characterized by hundreds of adenomatous polyps in the colon and rectum, which have a high probability of malignant transformation. Attenuated familial adenomatous polyposis is a variant of familial adenomatous polyposis, which is a term used for the condition in which patients have less than 100 colorectal polyps. Germline heterozygous Adenomatous polyposis coli (APC) and biallelic MUTYH (mutY DNA glycosylase) pathogenic variations are responsible for familial adenomatous polyposis and MUTYH-associated polyposis respectively. The aim of this study is to discuss the clinical manifestations of patients having pathogenic APC and MUTYH variations.
    Methods: We included 27 probands who have more than 10 colonic polyps in this study. After evaluation of their clinical and family histories, the probands were screened for APC and MUTYH variations via next generation sequencing. The family members of the probands carrying pathogenic variations were screened via Sanger sequencing.
    Results: Among 27 probands, pathogenic APC and MUTYH variations were detected in 3 and 6 probands respectively. In the APC gene, 3 novel truncating variations (p.Leu360*, p.Leu1489Phefs*23, and p.Leu912*) were detected in 3 unrelated probands. In the MUTYH gene, only 2 distinct pathogenic variations were detected (p.Pro295Leu and p.Glu480del) in the homozygous or compound heterozygous state.
    Conclusion: In this study, molecular etiology was clarified in 9 familial polyposis patients. The p.Pro295Leu and p.Glu480del variations seem to be common in the Turkish population and may be considered as a first-step genetic test in Turkish familial polyposis patients showing autosomal recessive inheritance. However more studies are needed to reveal the exact frequency of these variations.
    MeSH term(s) Adenomatous Polyposis Coli/genetics ; Adenomatous Polyposis Coli Protein/genetics ; DNA Glycosylases/genetics ; Genes, APC ; Genetic Predisposition to Disease ; Humans ; Mutation
    Chemical Substances APC protein, human ; Adenomatous Polyposis Coli Protein ; DNA Glycosylases (EC 3.2.2.-)
    Language English
    Publishing date 2022-03-03
    Publishing country Turkey
    Document type Journal Article
    ZDB-ID 1340275-4
    ISSN 2148-5607 ; 1300-4948
    ISSN (online) 2148-5607
    ISSN 1300-4948
    DOI 10.5152/tjg.2021.201068
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  9. Article ; Online: COVID-19 diagnosis from chest X-ray images using transfer learning: Enhanced performance by debiasing dataloader.

    Polat, Çağín / Karaman, Onur / Karaman, Ceren / Korkmaz, Güney / Balcı, Mehmet Can / Kelek, Sevim Ercan

    Journal of X-ray science and technology

    2021  Volume 29, Issue 1, Page(s) 19–36

    Abstract: Background: Chest X-ray imaging has been proved as a powerful diagnostic method to detect and diagnose COVID-19 cases due to its easy accessibility, lower cost and rapid imaging time.: Objective: This study aims to improve efficacy of screening COVID- ...

    Abstract Background: Chest X-ray imaging has been proved as a powerful diagnostic method to detect and diagnose COVID-19 cases due to its easy accessibility, lower cost and rapid imaging time.
    Objective: This study aims to improve efficacy of screening COVID-19 infected patients using chest X-ray images with the help of a developed deep convolutional neural network model (CNN) entitled nCoV-NET.
    Methods: To train and to evaluate the performance of the developed model, three datasets were collected from resources of "ChestX-ray14", "COVID-19 image data collection", and "Chest X-ray collection from Indiana University," respectively. Overall, 299 COVID-19 pneumonia cases and 1,522 non-COVID 19 cases are involved in this study. To overcome the probable bias due to the unbalanced cases in two classes of the datasets, ResNet, DenseNet, and VGG architectures were re-trained in the fine-tuning stage of the process to distinguish COVID-19 classes using a transfer learning method. Lastly, the optimized final nCoV-NET model was applied to the testing dataset to verify the performance of the proposed model.
    Results: Although the performance parameters of all re-trained architectures were determined close to each other, the final nCOV-NET model optimized by using DenseNet-161 architecture in the transfer learning stage exhibits the highest performance for classification of COVID-19 cases with the accuracy of 97.1 %. The Activation Mapping method was used to create activation maps that highlights the crucial areas of the radiograph to improve causality and intelligibility.
    Conclusion: This study demonstrated that the proposed CNN model called nCoV-NET can be utilized for reliably detecting COVID-19 cases using chest X-ray images to accelerate the triaging and save critical time for disease control as well as assisting the radiologist to validate their initial diagnosis.
    MeSH term(s) Algorithms ; COVID-19/diagnostic imaging ; Deep Learning ; Early Diagnosis ; Humans ; Neural Networks, Computer ; Pneumonia/diagnostic imaging ; Radiography, Thoracic ; Reproducibility of Results ; SARS-CoV-2 ; Tomography, X-Ray Computed/methods
    Language English
    Publishing date 2021-02-12
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2012019-9
    ISSN 1095-9114 ; 0895-3996
    ISSN (online) 1095-9114
    ISSN 0895-3996
    DOI 10.3233/XST-200757
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  10. Article ; Online: Clinical evaluation of DIAGNOVIR SARS-CoV-2 ultra-rapid antigen test performance compared to PCR-based testing.

    Seymen, Ali Aytac / Gulten, Ezgi / Ozgur, Erol / Ortaç, Bülend / Akdemir, Irem / Cinar, Gule / Saricaoglu, Elif Mukime / Guney-Esken, Gulen / Akkus, Erman / Can, Fusun / Karahan, Zeynep Ceren / Azap, Alpay / Tuncay, Erkan

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 4438

    Abstract: Coronavirus Disease-19 (COVID-19) is a highly contagious infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The development of rapid antigen tests has contributed to easing the burden on healthcare and lifting ... ...

    Abstract Coronavirus Disease-19 (COVID-19) is a highly contagious infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The development of rapid antigen tests has contributed to easing the burden on healthcare and lifting restrictions by detecting infected individuals to help prevent further transmission of the virus. We developed a state-of-art rapid antigen testing system, named DIAGNOVIR, based on immune-fluorescence analysis, which can process and give the results in a minute. In our study, we assessed the performance of the DIAGNOVIR and compared the results with those of the qRT-PCR test. Our results demonstrated that the sensitivity and specificity of the DIAGNOVIR were 94% and 99.2%, respectively, with a 100% sensitivity and 96.97% specificity, among asymptomatic patients. In addition, DIAGNOVIR can detect SARS‑CoV‑2 with 100% sensitivity up to 5 days after symptom onset. We observed that the DIAGNOVIR Rapid Antigen Test's limit of detection (LoD) was not significantly affected by the SARS‑CoV‑2 variants including Wuhan, alpha (B1.1.7), beta (B.1.351), delta (B.1.617.2) and omicron (B.1.1.529) variants, and LoD was calculated as 8 × 10
    MeSH term(s) Humans ; SARS-CoV-2/genetics ; COVID-19/diagnosis ; Polymerase Chain Reaction ; Health Facilities ; COVID-19 Testing
    Language English
    Publishing date 2023-03-17
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-31177-8
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