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Wyszukujesz frazę "real-time detection" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
Development of TaqMan-based real-time PCR assay based on the E1 genefor the quantitative detection of the Getah virus
Autorzy:
Lin, A.
Hu, X.
Cui, S.
Yang, T.
Zhang, Z.
Li, P.
Guo, M.
Lu, Y.
Powiązania:
https://bibliotekanauki.pl/articles/16647453.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
Getah virus
real-time PCR
TaqMan
detection
Opis:
To develop a sensitive, specific, and rapid approach for the detection Getah virus (GETV), a set of primers targeting the conserved region of the E1 gene was created. The TaqMan-based real-time PCR method for GETV detection was developed by optimizing the reaction conditions. The method demonstrated excellent specificity, and amplification did not occur with the causative agents of all prevalent swine viral infections (CSFV, PRRSV, PRV, PEDV, PTV, and JEV), except GETV. Additionally, upon assessing the sensitivity of the method, the minimum detection limit for GETV was found to be 5.94 copies/μL, which is 10 times higher than that of the traditional PCR approach. Further, the intra- and inter-assay variation coefficients were less than 1%, demonstrating good repeatability. Moreover, GETV was found in 10 of the 20 field serum samples using real-time PCR but only in three of the samples using traditional PCR. Consequently, the first GETV TaqMan-based real-time PCR approach based on the E1 gene was developed for GETV pathogenic diagnoses, and this exhibited high specificity, sensitivity, and repeatability. This assay is practical for the pathogenic diagnosis and epidemiology of GETV.
Źródło:
Polish Journal of Veterinary Sciences; 2023, 26, 1; 21-28
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
PCR and real-time PCR assays to detect fungi of Alternaria alternata species
Autorzy:
Kordalewska, Milena
Brillowska-Dąbrowska, Anna
Jagielski, Tomasz
Dworecka-Kaszak, Bożena
Powiązania:
https://bibliotekanauki.pl/articles/1038891.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Alternaria alternata
detection
identification
PCR
real-time PCR
Opis:
Fungi of the Alternaria genus are mostly associated with allergic diseases. However, with a growing number of immunocompromised patients, these fungi, with A. alternata being the most prevalent one, are increasingly recognized as etiological agents of infections (phaeohyphomycoses) in humans. Nowadays, identification of Alternaria spp. requires their pure culture and is solely based on morphological criteria. Clinically, Alternaria infections may be indistinguishable from other fungal diseases. Therefore, a diagnostic result is often delayed or even not achieved at all. In this paper we present easy to perform and interpret PCR and real-time PCR assays enabling detection of A. alternata species. On the basis of alignment of β-tubulin gene sequences, A. alternata-specific primers were designed. DNA from fungal isolates, extracted in a two-step procedure, were used in PCR and real-time PCR assays followed by electrophoresis or melting temperature analysis, respectively. The assays specificity was confirmed, since positive results were obtained for all A. alternata isolates, and no positive results were obtained neither for other molds, dermatophytes, yeast-like fungi, nor human DNA. The assays developed here enable fast and unambiguous identification of A. alternata pathogens.
Źródło:
Acta Biochimica Polonica; 2015, 62, 4; 707-712
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detection and differentiation of Newcastle disease virus and influenza virus by using duplex real-time PCR
Autorzy:
Nidzworski, Dawid
Wasilewska, Edyta
Smietanka, Krzysztof
Szewczyk, Bogusław
Minta, Zenon
Powiązania:
https://bibliotekanauki.pl/articles/1039554.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Newcastle disease virus
influenza virus
detection
differentiation
real-time PCR
duplex
Opis:
Newcastle disease virus (NDV), member of the Paramyxoviridae family and avian influenza virus (AIV), member of the Orthomyxoviridae family, are two main avian pathogens causing serious economic problems in poultry health. Both are enveloped, single-stranded, negative-sense RNA viruses and cause similar symptoms, ranging from sub-clinical infections to severe diseases, including decrease in egg production, acute respiratory syndrome, and high mortality. Similar symptoms hinder the differentiation of infection with the two viruses by standard veterinary procedures like clinical examination or necropsy. To overcome this problem, we have developed a new duplex real-time PCR assay for the detection and differentiation of these two viruses. Eighteen NDV strains, fourteen AIV strains, and twelve other (negative control) strains viruses were isolated from allantoic fluids of specific pathogen-free (SPF), embryonated eggs. Four-weeks-old SPF chickens were co-infected with both viruses (NDV - LaSota and AIV - H7N1). Swabs from cloaca and trachea were collected and examined. The results obtained in this study show that by using duplex real-time PCR, it was possible to detect and distinguish both viruses within less than three hours and with high sensitivity, even in case a bird was co-infected. Additionally, the results show the applicability of the real-time PCR assay in laboratory practice for the identification and differentiation of Newcastle disease and influenza A viruses in birds.
Źródło:
Acta Biochimica Polonica; 2013, 60, 3; 475-480
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A simple method for extracting DNA from rhododendron plants infected with Phytophthora spp. for use in PCR
Autorzy:
Trzewik, A.
Nowak, K.J.
Orlikowska, T.
Powiązania:
https://bibliotekanauki.pl/articles/66480.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
simple method
DNA extraction
rhododendron
leaf
plant infection
Phytophthora
polymerase chain reaction
detection
real-time PCR method
Opis:
Among the numerous protocols that describe the extraction of DNA, those relating to the isolation of DNA from infected plants, are rare. This study describes a rapid and reliable method of extracting a high quality and quantity of DNA from rhododendron leaves artificially infected with Phytophthora cactorum, P. cambivora, P. cinnamomi, P. citrophthora, and P. plurivora. The use of the modified Doyle and Doyle protocol (1987) allowed us to obtain high quantity and quality DNA (18.26 μg from 100 mg of the fresh weight of infected leaves at the ratios of A260/280 and A260/230 – 1.83 and 1.72, respectively), suitable for conventional polymerase chain reaction (PCR) and real-time PCR amplifications.
Źródło:
Journal of Plant Protection Research; 2016, 56, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detection of Giardia intestinalis DNA in environmental water and soil samples collected from the Pomerania Province and the Warmia-Masuria Province, Poland using real-time PCR and nested–PCR
Autorzy:
Lass, A.
Szostakowska, B.
Powiązania:
https://bibliotekanauki.pl/articles/6172.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
detection
Giardia intestinalis
DNA
environmental water
soil sample
Pomeranian region
Warmia-Mazury region
Polska
real-time PCR method
nested polymerase chain reaction
Źródło:
Annals of Parasitology; 2016, 62, Suppl.
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sensitive and specific detection of Xanthomonas hortorum pv. pelargonii in geranium by real-time PCR
Autorzy:
Farahani, A.S.
Taghavi, S.M.
Powiązania:
https://bibliotekanauki.pl/articles/66354.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
detection
bacterial blight
Xanthomonas hortorum pv.pelargonii geranium
real-time polymerase chain reaction
pathogen
Botrytis cinerea
Puccinia pelargonii-zonalis
Pythium
Rhodococcus fascians
Ralstonia solanacearum
Opis:
Xanthomonas hortorum pv. pelargonii is the causal agent of bacterial blight of geranium. A specific and rapid real-time PCR assay for detecting the bacterium in plant was developed in this study. We compared sensitivity of conventional and real-time PCR for detection of the pathogen in inoculated plants. For application to disease management programs, PCR amplification must be able to detect latent infections of asymptomatic geraniums. Our results displayed that conventional PCR lacks sufficient sensitivity to be used as diagnostic tools for detection of X. hortorum pv. pelargonii in latent infections. On the other hand, real-time PCR is suitable method for detection of latent infection of the bacterium in planting materials and can be considered in management programs. The ability for accurate and reliable detection of X. hortorum pv. pelargonii in asymptomatic tissue is a significant step in setting up “pathogen free” certification programs for bacterial blight of geranium.
Źródło:
Journal of Plant Protection Research; 2016, 56, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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