دورية أكاديمية
An improvement of real-time polymerase chain reaction system based on probe modification is required for accurate detection of African swine fever virus in clinical samples in Vietnam
| العنوان: | An improvement of real-time polymerase chain reaction system based on probe modification is required for accurate detection of African swine fever virus in clinical samples in Vietnam |
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| المؤلفون: | Ha Thi Thanh Tran, Anh Kieu Dang, Duc Viet Ly, Hao Thi Vu, Tuan Van Hoang, Chinh Thi Nguyen, Nhu Thi Chu, Vinh The Nguyen, Huyen Thi Nguyen, Anh Duc Truong, Ngoc Thi Pham, Hoang Vu Dang |
| المصدر: | Asian-Australasian Journal of Animal Sciences, Vol 33, Iss 10, Pp 1683-1690 (2020) |
| بيانات النشر: | Asian-Australasian Association of Animal Production Societies, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Animal culture LCC:Animal biochemistry |
| مصطلحات موضوعية: | african swine fever, real-time polymerase chain reaction, conventional polymerase chain reaction, pams cell, virus isolation, molecular diagnosis, Animal culture, SF1-1100, Animal biochemistry, QP501-801 |
| الوصف: | Objective The rapid and reliable detection of the African swine fever virus (ASFV) plays an important role in emergency control and preventive measures of ASF. Some methods have been recommended by FAO/OIE to detect ASFV in clinical samples, including real-time polymerase chain reaction (PCR). However, mismatches in primer and probe binding regions may cause a false-negative result. Here, a slight modification in probe sequence has been conducted to improve the qualification of real-time PCR based on World Organization for Animal Health (OIE) protocol for accurate detection of ASFV in field samples in Vietnam. Methods Seven positive confirmed samples (four samples have no mismatch, and three samples contained one mutation in probe binding sites) were used to establish novel real-time PCR with slightly modified probe (Y = C or T) in comparison with original probe recommended by OIE. Results Both real-time PCRs using the OIE-recommended probe and novel modified probe can detect ASFV in clinical samples without mismatch in probe binding site. A high correlation of cycle quantification (Cq) values was observed in which Cq values obtained from both probes arranged from 22 to 25, suggesting that modified probe sequence does not impede the qualification of real-time PCR to detect ASFV in clinical samples. However, the samples with one mutation in probe binding sites were ASFV negative with OIE recommended probe but positive with our modified probe (Cq value ranked between 33.12–35.78). Conclusion We demonstrated for the first time that a mismatch in probe binding regions caused a false negative result by OIE recommended real-time PCR, and a slightly modified probe is required to enhance the sensitivity and obtain an ASF accurate diagnosis in field samples in Vietnam. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1011-2367 1976-5517 |
| Relation: | http://www.ajas.info/upload/pdf/ajas-19-0525.pdf; https://doaj.org/toc/1011-2367; https://doaj.org/toc/1976-5517 |
| DOI: | 10.5713/ajas.19.0525 |
| URL الوصول: | https://doaj.org/article/27a5f6b64a73430f8cad034f4a83c492 |
| رقم الأكسشن: | edsdoj.27a5f6b64a73430f8cad034f4a83c492 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 10112367 19765517 |
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| DOI: | 10.5713/ajas.19.0525 |