Simple and visible detection of duck hepatitis B virus in ducks and geese using loop-mediated isothermal amplification

Autor: Jun Ji, Xin Xu, Qianqian Wu, Xueyu Wang, Wanyu Li, Lunguang Yao, Yunchao Kan, Lu Yuan, Yingzuo Bi, Qingmei Xie
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Poultry Science, Vol 99, Iss 2, Pp 791-796 (2020)
Druh dokumentu: article
ISSN: 0032-5791
DOI: 10.1016/j.psj.2019.12.024
Popis: ABSTRACT: In this study, loop-mediated isothermal amplification (LAMP) was used to establish a rapid, specific, and visual detection method for duck hepatitis B virus (DHBV). The design and synthesis of 4 specific LAMP primers were based on the conserved gene region of the DHBV genome, and the optimum temperature and time of the LAMP reaction were 63°C and 50 min, respectively. The LAMP assay was confirmed to be specific for DHBV detection and had the same sensitivity as the quantitative PCR assay. A visual detection method for rapid determination of results was developed using a color indicator containing phenol red and cresol red. A color change was produced based on a pH change in the reaction system, indicating a positive reaction. For the detection of samples from ducks and geese, the LAMP method has the advantages of simplicity, high sensitivity and specificity, good visibility, and low cost. Moreover, it is more practical and convenient than PCR-related assays for the clinical detection of DHBV.
Databáze: Directory of Open Access Journals