Kit and method for synchronously detecting multiple genital tract pathogens

A synchronous detection and kit technology, applied in microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve problems such as low sensitivity, achieve strong specificity, improve detection efficiency, and good detection sensitivity.

Pending Publication Date: 2021-09-28
HEMOSMART MEDICAL TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, although there are patent documents that use real-time fluorescent quantitative PCR to quickly detect pathogens related to various reproductive tract infections at the same time, the sensitivity is low, and there is no report that can target the above-mentioned six specific pathogens (ie, Neisseria gonorrhoeae, urea trachomatis, mycoplasma hominis, mycoplasma genitalium, herpes simplex virus type 2) for simultaneous detection

Method used

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  • Kit and method for synchronously detecting multiple genital tract pathogens
  • Kit and method for synchronously detecting multiple genital tract pathogens
  • Kit and method for synchronously detecting multiple genital tract pathogens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1: Kit

[0049] The kit includes two nucleic acid reaction solutions, namely nucleic acid reaction solution A and nucleic acid reaction solution B.

[0050] Nucleic acid reaction solution A is a quadruple nucleic acid reaction solution of Neisseria gonorrhoeae / Ureaplasma urealyticum / Chlamydia trachomatis / human internal reference, specifically including the following components:

[0051] (1) It consists of a pair of primers for detecting Neisseria gonorrhoeae and a probe for detecting Neisseria gonorrhoeae, the 5' end of the probe is marked with a CY5 fluorescent reporter group, and the 3' end is marked with a BHQ-2 fluorescence quencher group;

[0052] (2) It consists of a pair of primers for detecting Ureaplasma urealyticum and a probe for detecting Ureaplasma urealyticum. The 5' end of the probe is labeled with a FAM fluorescent reporter group, and the 3' end is labeled with a BHQ-1 fluorescence quencher killing group;

[0053] (3) It consists of a pair o...

Embodiment 2

[0065] Embodiment 2: the detection of pathogen

[0066] (1) Extract the nucleic acid of the sample collected

[0067] The samples collected clinically (such as vaginal swab samples) are extracted with the nucleic acid extraction kit purchased by Beijing Tiangen Biotechnology Co., Ltd. to extract the genomic DNA of the samples.

[0068] (2) Using the kit of Example 1, the extracted nucleic acid and the nucleic acid reaction solution A in the kit and the rapid fluorescent quantitative PCR premixed reagent are composed of reaction system A according to Table 2, and the extracted nucleic acid and the nucleic acid in the kit Reaction solution B and rapid fluorescent quantitative PCR premixed reagents were used to form reaction system B according to Table 2.

[0069] Table 2

[0070] Reaction System A Reaction System B The final concentration of the substance in the system 2×FastFire qPCR PreMix 2×FastFire qPCR PreMix 1× Neisseria gonorrhoeae probe Myc...

Embodiment 3

[0085] Embodiment 3: Sensitivity experiment

[0086] The positive reference products of nucleic acid reaction solution A are the DNA of Neisseria gonorrhoeae (NG), Ureaplasma urealyticum (UU), Chlamydia trachomatis (CT) and the DNA of purchased cell lines. The positive reference substances of nucleic acid reaction solution B are Mycoplasma hominis (MH), Mycoplasma genitalium (MG), NDA of herpes simplex virus type 2 (HSV2) and DNA of purchased cell lines. Using the kit of Example 1, the sensitivity of the kit was tested according to the detection method of Example 2.

[0087] For test results, see Figure 2 to Figure 4 and Figure 6 to Figure 8 , the results show that: this kit has good sensitivity, in nucleic acid reaction solution A, Neisseria gonorrhoeae (NG) can realize the reference concentration detection of 300copies / mL, Ureaplasma urealyticum (UU) and Chlamydia trachomatis (CT) can realize 100copies / mL reference substance concentration detection. Mycoplasma hominis ...

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Abstract

The invention discloses a kit and method for synchronously detecting multiple genital tract pathogens. The kit comprises a nucleic acid reaction solution; the nucleic acid reaction solution comprises a primer and a probe of gonococcus, a primer and a probe of ureaplasma urealyticum, a primer and a probe of chlamydia trachomatis, a primer and a probe of mycoplasma hominis, a primer and a probe of mycoplasma genitalium and a primer and a probe of herpes simplex virus type 2. Forward primers of the pathogens respectively comprise nucleotide sequences shown as SEQ ID NO.1, SEQ ID NO.4, SEQ ID NO.7, SEQ ID NO.10, SEQ ID NO.13 and SEQ ID NO.16, reverse primers of the pathogens respectively comprise nucleotide sequences shown as SEQ ID NO.2, SEQ ID NO.5, SEQ ID NO.8, SEQ ID NO.11, SEQ ID NO.14 and SEQ ID NO.17, and the probes of the pathogens respectively comprise nucleotide sequences shown as SEQ ID NO.3, SEQ ID NO.6, SEQ ID NO.9, SEQ ID NO.12, SEQ ID NO.15 and SEQ ID NO.18. The kit can be used for rapidly, accurately and synchronously detecting gonococcus, ureaplasma urealyticum, chlamydia trachomatis, mycoplasma hominis, mycoplasma genitalium and herpes simplex virus type 2, and is relatively strong in specificity and relatively high in sensitivity.

Description

technical field [0001] The invention belongs to the field of biological kits, and relates to a kit and method for synchronous detection of multiple reproductive tract pathogens, in particular to a kit and method for synchronous detection of six reproductive tract pathogens based on a PCR fluorescent probe method. Background technique [0002] STDs are one of the most serious and widespread infectious diseases that endanger human beings. It not only endangers personal health, but also affects families and future generations. Sexually transmitted diseases can damage human health in many ways. If sexually transmitted diseases cannot be detected and treated thoroughly after infection, they will not only damage human reproductive organs and cause infertility, but some diseases can also damage important organs of the human body such as the heart and brain, and even cause infertility. die. Some diseases are difficult to cure once infected, such as genital warts and genital herpes....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/689C12Q1/70C12Q1/6851C12R1/35C12R1/01C12R1/93
CPCC12Q1/689C12Q1/705C12Q1/6851C12Q2600/166C12Q2600/16C12Q2531/113C12Q2545/101C12Q2563/107C12Q2537/143
Inventor 颜菁刘艳
Owner HEMOSMART MEDICAL TECH LTD
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