+86-512-6515-8191（Marketing & Sales） Nantong Office: No. 888 Zhujiang Road, Juegang Street, Rudong County, Jiangsu Province Suzhou Office: Building 1, No. 188, Fuchunjiang Road, High-tech Zone, Suzhou Beijing Office: Building 2, No. 28, Yuhua Road, Airport Science and Technology Park, Shunyi District, Beijing Contact Number:+86-10-80497001
[Product Name] Group B Streptococcus Nucleic Acid Detection Kit(Fluorescence PCR) [Packaging Size] 50 tests/kit
This kit is used to qualitatively detect group B streptococcus nucleic acid DNA in vitro rectal swabs, vaginal swabs or rectal/vaginal mixed swabs of pregnant women with high-risk factors around 35 ~37 weeks of pregnancy, and other gestational weeks with clinical symptoms such as premature rupture of membranes, threatened preterm labor, etc.
Group B Streptococcus (GBS), also known as streptococcus agalatiae, is a gram-positive opportunistic pathogen that normally inhabits the lower gastrointestinal and urogenital tracts of the human body. Approximately 10%-30 % of pregnant women have GBS vaginal sojourn. Pregnant women are susceptible to GBS infection due to changes in the internal environment of the reproductive tract due to changes in hormone levels in the body, which will cause adverse pregnancy outcomes such as preterm labor, premature rupture of membranes, and stillbirth, and can also lead to puerperal infections in pregnant women. In addition, 40%-70% of mothers infected with GBS will transmit GBS to their newborns during delivery through the birth canal, causing serious neonatal infectious diseases such as neonatal sepsis and meningitis. If the newborns carry GBS, about 1%-3% will develop early invasive infection, of which 5% will result in death. Neonatal group B streptococcus is associated with perinatal infection and is an important pathogen of severe infectious diseases such as neonatal sepsis and meningitis. By accurately diagnosing group B streptococcus infection, this kit minimizes the incidence and harm of the infection of pregnant women and newborns and the unnecessary economic burden caused by this harm.
This kit provides an auxiliary means for the diagnosis of GBS infection in pregnant women during puerperium. The test results are for clinical reference only, and the final diagnosis must be closely combined with other clinical indicators for comprehensive analysis.
This kit uses a combination of PCR amplification and fluorescent probes, selects the conserved region of GBS as the detection target gene region, and designs specific primer probes for fluorescence detection. The 5' end of the probe is labeled with FAM, and the 3' end quencher is BHQ1 and BHQ2 respectively. At the same time, the endogenous internal control is introduced, and the IC3 gene is designed with a specific primer probe for fluorescence detection. The 5' end of the probe is labeled with VIC (HEX), and the 3' end quencher is BHQ2. During the PCR amplification process, the specific primers and probes of the GBS gene and the internal control gene are combined with their respective target sequences. Through the DNA polymerase activity and 5'-3' exonuclease activity of the Taq enzyme, complete synchronization of PCR product formation and fluorescence
signal accumulation is achieved, enabling qualitative detection of GBS genes in samples.
[Storage Conditions and Shelf-life]
The kit should be stored below -18°C protected from light. The shelf life is 12 months. Please use it within 3 months. The number of repeated freezing and thawing should not be more than 4 cycles. [Applicable Instruments]
Applied Biosystems 7500 Real-Time PCR Systems, QuantStudio®5 Real-Time PCR Systems, SLAN-96P Real-Time PCR Systems(Shanghai Hongshi Medical Technology Co., Ltd.), LightCycler®480 Real-Time PCR system, LineGene 9600 Plus Real-Time PCR Detection System(FQD-96A，Bioer technology), MA-6000 Real-Time Quantitative Thermal Cycler (Suzhou Molarray Co., Ltd.), BioRad CFX96 Real-Time PCR System and BioRad CFX Opus 96 Real-Time PCR System.
[Requirements for Samples]
1) Freshly collected swab samples of genital and rectal secretions.
2) Wipe the excess secretions from the vulva area, and then place a sterile swab on the lower 1/3 of the vagina and rotate to wipe the excess vaginal secretions, and place the sampled swab on the sterile swab tube, sealed for inspection;
3) Gently rotate a sterile swab 2-3cm above the anal sphincter to take rectal secretions, place the sampled swab in a sterile swab tube, and seal it for inspection;
4) It is recommended that the above two swabs after sampling be placed in the same sterile swab tube and sealed for inspection to improve the positive detection rate;
5) It is recommended that subjects avoid using any antibiotics and lotions within one week before sampling.
Test samples should be stored at 2-8°C for no more than 7 days, and should be stored below -18°C for no more than 4 months, and could be stored below -70°C for 12 months. The samples should be repeated freezing and thawing.
The kits should be sealed in foam box with dry ice and shipped for no more than 5 days. The kits should be stored with ice bag at low temperature and shipped for no more than 3 days.
Suzhou Office: Building 1, No. 188, Fuchunjiang Road, High-tech Zone, Suzhou
Beijing Office: Building 2, No. 28, Yuhua Road, Airport Science and Technology Park, Shunyi District, Beijing
Contact number: +86-10-80497001
Nantong Office: No. 888 Zhujiang Road, Juegang Street, Rudong County, Jiangsu Province
Contact number: +86-513-80562882（Administration & Human Resources）