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Multiplex fluorescent quantitative RT-PCR (reverse transcription-polymerase chain reaction) kit for detecting hematogenous infectious viruses

A technology of multiple fluorescence quantification and detection kits, which is applied in the direction of recombinant DNA technology, microbial measurement/inspection, DNA/RNA fragments, etc., which can solve the problems that affect the wide application, increase the risk of pathogen transmission, detection cost and long operation time, etc.

Active Publication Date: 2021-09-10
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the screening of the four pathogens can effectively guarantee the safety of clinical blood use in my country and most countries and regions in the world, as the prevalence of new (emergency) pathogens and undetected pathogens increases significantly, international cooperation and exchanges It has become more and more frequent. In recent years, imported blood-borne infectious pathogens have occurred continuously, which increases the risk of pathogen transmission and seriously threatens the safe use of blood in clinical practice. The project is imminent
Nucleic acid detection technology is direct and has high specificity and sensitivity for detecting trace infectious pathogens. However, factors such as expensive detection costs and long operation time seriously affect the wide application of this technology.

Method used

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  • Multiplex fluorescent quantitative RT-PCR (reverse transcription-polymerase chain reaction) kit for detecting hematogenous infectious viruses
  • Multiplex fluorescent quantitative RT-PCR (reverse transcription-polymerase chain reaction) kit for detecting hematogenous infectious viruses
  • Multiplex fluorescent quantitative RT-PCR (reverse transcription-polymerase chain reaction) kit for detecting hematogenous infectious viruses

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Experimental program
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Effect test

Embodiment 1

[0055] A multiple fluorescent quantitative RT-PCR detection kit for detecting blood-borne infectious viruses, the kit includes quantitative RT-PCR reaction solution, enzyme Mix solution, primer probe Mix solution, standard products (cytomegalovirus, Epstein- Barr virus, herpes simplex virus, RNase P), positive control substance (cytomegalovirus, Epstein-Barr virus, herpes simplex virus, RNaseP), negative control substance. The box body is provided with container holes, respectively placed quantitative RT-PCR reaction liquid tube, enzyme Mix liquid tube, primer probe Mix liquid tube, standard tube (cytomegalovirus, Epstein-Barr virus, herpes simplex virus, RNase P), Positive control quality control (cytomegalovirus, Epstein-Barr virus, herpes simplex virus, RNase P), negative control quality control.

[0056] see figure 1 , There are container holes in the package of this kit, which are used to place the corresponding kit components: quantitative RT-PCR reaction solution tube ...

Embodiment 2

[0058] 1 Materials and methods

[0059] 1.1 Serum samples and viral nucleic acid:

[0060] The clinical samples of cytomegalovirus, Epstein-Barr virus, and herpes simplex virus were obtained from the serum samples of patients with cytomegalovirus, Epstein-Barr virus, and herpes simplex virus nucleic acid positive in the First Affiliated Hospital of Zhejiang University School of Medicine and several other hospitals in Zhejiang Province .

[0061] In addition, positive samples of other herpes viruses such as VZV, HHV-6, HHV-7, and HHV-8 were provided by the State Key Laboratory of Diagnosis and Treatment of Infectious Diseases.

[0062] 1.2 Primers and probes

[0063]Downloaded from the NCBI gene bank multiple gene sequences covering cytomegalovirus, Epstein-Barr virus, and herpes simplex virus at home and abroad. The homology comparison was carried out using DNAman software to determine the conserved regions of the above viral genomes. Primer Express 3.0 software was used t...

Embodiment 3

[0098] The clinical samples collected by this kit mainly come from a total of 200 preoperative four test specimens between May 2021 and July 2021. The collected specimens were detected by multiple real-time fluorescence quantitative RT-PCR in this method, and the results were as follows: a total of 200 specimens were tested for four items before surgery, 2 positive specimens for cytomegalovirus, 2 positive specimens for EB virus, There were 0 positive herpes simplex virus samples, and all the test results of the internal reference RNase P gene were positive. The positive result of this kit is consistent with the positive result of the commercial kit (Zhijiang Biology) by 100%.

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Abstract

The invention provides a multiplex fluorescent quantitative RT-PCR (reverse transcription-polymerase chain reaction) kit for detecting hematogenous infectious viruses. The multiplex fluorescent quantitative RT-PCR kit comprises quantitative RT-PCR reaction liquid, enzyme Mix liquid, primer probe Mix liquid, standard substances (cytomegalovirus, Epstein-Barr virus, herpes simplex virus and RNase P standard substances), positive reference substances and negative reference substances. The primer probes comprise four groups of primers and corresponding probes with different fluorescence labels. According to the kit, high-specificity primer probes are designed according to high-conservative proteins of cytomegalovirus, Epstein-Barr virus, herpes simplex virus and RNase P correspondingly, and whether the viruses exist in a serum sample or not is simultaneously detected through a PCR reaction. The kit disclosed by the invention is simple, convenient and rapid, cost-saving, good in repeatability and capable of effectively and rapidly screening the hematogenous infectious viruses. The kit can be applied to rapid screening of the hematogenous infectious viruses and research of hematogenous infectious virus epidemiology.

Description

technical field [0001] The invention belongs to the field of biological technology, and relates to a fluorescent quantitative RT-PCR detection kit, in particular to a multiple fluorescent quantitative RT-PCR kit for detecting blood-borne infectious viruses, which is a one-step method for multiple real-time fluorescent quantitative RT-PCR at the same time. A nucleic acid detection method for detecting cytomegalovirus (CMV), Epstein-Barr virus (EBV), and herpes simplex virus (HSV) in serum samples in a reaction tube, which can be applied to rapid screening of blood-borne infectious viruses and blood-borne A study of the epidemiology of infectious viruses. Background technique [0002] In the past few decades, people have become more and more aware of the serious threat of infectious pathogens to blood safety. Blood-borne infectious pathogens are mainly transmitted through blood donated by pathogen-carrying blood donors. Therefore, the screening strategy for blood-borne infect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/70C12Q1/6851C12N15/11
CPCC12Q1/705C12Q1/6851C12Q2600/16C12Q2600/166C12Q2531/113C12Q2537/143C12Q2563/107C12Q2545/113C12Q2521/107C12Q2527/127
Inventor 谢珏崔大伟徐瑜珊林梦姣吕燕
Owner ZHEJIANG UNIV
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