Development of a TaqMan-based real-time PCR assay for rapid and specific detection of fowl aviadenovirus serotype 4.

In this study, we aimed to develop a TaqMan-based real-time PCR assay for the specific detection of FAdV-4. A pair of primers targeting the hexon gene and a TaqMan probe were designed. Using different copy numbers of plasmid DNA carrying the hexon gene as template, we showed the detection limit of this assay was 10(1) copies/reaction, which was 10 times higher than conventional PCR. The assay was highly specific for FAdV-4 and did not cross-detect 11 other serotypes of FAdVs, avian influenza virus, Newcastle disease virus, infectious bronchitis virus or subgroup J of the avian leukosis virus. The reproducibility of the assay was assessed by five independent reactions using different copy numbers of plasmid DNA (10(3) and 10(5)) as template, and the results showed 0.56-1.15% coefficient of variation for inter-assay variability. Furthermore, the assay was validated with 80 clinical samples. Real-time PCR showed that 76 out of 80 samples were positive for FAdV-4 (95.0% positivity) while 68 out of 80 were tested positive by conventional PCR (85.0% positivity). Our data suggest this real-time PCR assay could be an attractive tool for screening, confirmatory diagnosis and specific differentiation of FAdV-4 infection. PMID: 28437156 [PubMed - in process]
Source: Avian Pathology - Category: Pathology Authors: Tags: Avian Pathol Source Type: research

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Publication date: Available online 10 October 2020Source: Journal of Clinical and Experimental HepatologyAuthor(s): Pramod Kumar, Anand Kulkarni, Mithun Sharma, Padaki Nagaraja Rao
Source: Journal of Clinical and Experimental Hepatology - Category: Gastroenterology Source Type: research
Authors: Tamai H, Shingaki N, Ida Y, Shimizu R, Maeshima S, Okamura J, Kawashima A, Nakao T, Hara T, Matsutani H, Nishikawa I, Higashi K Abstract BACKGROUND: Although clinical use of sofosbuvir plus ribavirin has been approved for patients infected with genotype 2 hepatitis C virus, patients ≥ 75-years-old have not been included in previous clinical trials. AIM: To evaluate the real-world safety and efficacy of sofosbuvir plus ribavirin for elderly patients (≥ 75-years-old) compared to nonelderly patients, we conducted a post-marketing prospective cohort study. METHODS: We treated 265 patients with ge...
Source: World Journal of Hepatology - Category: Gastroenterology Tags: World J Hepatol Source Type: research
CONCLUSION: DAAs are effective and safe in the treatment of recurrent HCV infection in LT recipients with history of HCC. Relapse to pre- and post-LT DAA therapy is associated with post-transplantation HCC recurrence. PMID: 33033569 [PubMed]
Source: World Journal of Hepatology - Category: Gastroenterology Tags: World J Hepatol Source Type: research
Publication date: Available online 9 October 2020Source: The Journal of Allergy and Clinical Immunology: In PracticeAuthor(s): Manuel Jorge Rial, Marcela Valverde, Victoria del Pozo, Francisco Javier González-Barcala, Carlos Martínez-Rivera, Xavier Muñoz, José María Olaguibel, Vicente Plaza, Elena Curto, Santiago Quirce, Pilar Barranco, Javier Domínguez-Ortega, Joaquin Mullol, César Picado, Antonio Valero, Irina Bobolea, Ebymar Arismendi, Paula Ribó, Joaquín Sastre
Source: The Journal of Allergy and Clinical Immunology: In Practice - Category: Allergy & Immunology Source Type: research
We report the rare case of a patient co-existing NS and DLBCL. DLBCL might be pathogenesis of NS; the findings are supported by the presence of MN, an underlying malignancy (DLBCL), and the lack of anti-PLA2R antibodies. Although further investigation is warranted, our case suggests that DLBCL is a possible cause of secondary MN. PMID: 33028760 [PubMed - in process]
Source: The Tohoku Journal of Experimental Medicine - Category: Research Authors: Tags: Tohoku J Exp Med Source Type: research
In conclusion, our multidisciplinary approach to prevent de novo hepatitis B is considered useful. PMID: 33028756 [PubMed - in process]
Source: The Tohoku Journal of Experimental Medicine - Category: Research Authors: Tags: Tohoku J Exp Med Source Type: research
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Source: Guardian Unlimited Science - Category: Science Authors: Tags: Coronavirus outbreak Infectious diseases Science World news France Trump administration Donald Trump Source Type: news
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Source: The Lancet - Category: General Medicine Source Type: research
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Source: Microbes and Infection - Category: Infectious Diseases Source Type: research
In this study, we present a new method for the simultaneous detection of CXCR4, mesodermal markers and NCCs markers during chicken embryo developmental stages HH18 –HH25 by combining double whole-mount in situ hybridization (ISH) and immunostaining on floating vibratome sections. The simultaneous detection of CXCR4 and markers for the mesodermal and neural crest cells in multiple labelling allowed us to compare complex gene expression patterns and it could b e easily used for a wide range of gene expression pattern analyses of other chicken embryonic tissues. All steps of the procedure, including the preparation of p...
Source: Histochemistry and Cell Biology - Category: Biomedical Science Source Type: research
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