1.Reform and reflection on the cultivation of postgraduates in neurosurgery in "5+3" training plan
Quanhong SHI ; Kaichuang SI ; Jiangshan YANG
Chinese Journal of Medical Education Research 2019;18(1):27-31
At present,the standardized training of neurosurgery resident is in the primary stage in our country,and the master's degree postgraduates of Neurosurgery major are the main part of the students of neurosurgery planning training in our department.At present,a systematic and sound training system and teaching mechanism hasn't been formed in the standardized training of postgraduates in Neurosurgery.It is imperative to explore the training mode of postgraduates majoring in neurosurgery to keep pace with the times and meet the needs of the society.Based on the problems in the current training mode of neurosurgery in the First Affiliated Hospital of Heavy Medicine and combined with the existing problems,this paper focuses on the cultivation of professional basic theoretical knowledge,clinical practice ability,clinical thinking and innovative ability and aims to establish professional assessment team,so as to boost the education development of postgraduates with neurosurgery degree and improve the quality of standardized training.
2.Development of a multiplex qRT-PCR assay for detection of African swine fever virus, classical swine fever virus and porcine reproductive and respiratory syndrome virus
Yating CHEN ; Kaichuang SHI ; Huixin LIU ; Yanwen YIN ; Jing ZHAO ; Feng LONG ; Wenjun LU ; Hongbin SI
Journal of Veterinary Science 2021;22(6):e87-
Background:
African swine fever virus (ASFV), classical swine fever virus (CSFV), and porcine reproductive and respiratory syndrome virus (PRRSV) are still prevalent in many regions of China. Co-infections make it difficult to distinguish their clinical symptoms and pathological changes. Therefore, a rapid and specific method is needed for the differential detection of these pathogens.
Objectives:
The aim of this study was to develop a multiplex real-time quantitative reverse transcription polymerase chain reaction (multiplex qRT-PCR) for the simultaneous differential detection of ASFV, CSFV, and PRRSV.
Methods:
Three pairs of primers and TaqMan probes targeting the ASFV p72 gene, CSFV 5′untranslated region, and PRRSV ORF7 gene were designed. After optimizing the reaction conditions, including the annealing temperature, primer concentration, and probe concentration, multiplex qRT-PCR for simultaneous and differential detection of ASFV, CSFV, and PRRSV was developed. Subsequently, 1,143 clinical samples were detected to verify the practicality of the assay.
Results:
The multiplex qRT-PCR assay could specifically and simultaneously detect the ASFV, CSFV, and PRRSV with a detection limit of 1.78 × 10 0 copies for the ASFV, CSFV, and PRRSV, but could not amplify the other major porcine viruses, such as pseudorabies virus, porcine circovirus type 1 (PCV1), PCV2, PCV3, foot-and-mouth disease virus, porcine parvovirus, atypical porcine pestivirus, and Senecavirus A. The assay had good repeatability with coefficients of variation of intra- and inter-assay of less than 1.2%. Finally, the assay was used to detect 1,143 clinical samples to evaluate its practicality in the field. The positive rates of ASFV, CSFV, and PRRSV were 25.63%, 9.36%, and 17.50%, respectively. The co-infection rates of ASFV+CSFV, ASFV+PRRSV, CSFV+PRRSV, and ASFV+CSFV+PRRSV were 2.45%, 2.36%, 1.57%, and 0.17%, respectively.
Conclusions
The multiplex qRT-PCR developed in this study could provide a rapid, sensitive, specific diagnostic tool for the simultaneous and differential detection of ASFV, CSFV, and PRRSV.