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Chinese Journal of Blood Transfusion ; (12): 702-704, 2017.
Article in Chinese | WPRIM | ID: wpr-607463

ABSTRACT

Objective To establish a nucleic acid testing assay for bacterial detection with meeting automatic requirement,and use it preliminarily to detect bacterial contamination in concentrated platelet.Methods Optimizing the bacterial DNA extraction methods,evaluating the sensitivity and specificity of the optimized assay with different bacterial strains,and applying the assay on bacterial detection for 100 units of concentrated platelet.Results The optimized extraction methods met the criteria of automatic testing.The sensitivity of the assay is 10,150,65,15 CFU/mL for Escheriehia coli,Stphylococcus aureus,Bacillus subtilis,and Pseudomonas aeruginas respectively.There was no non-specific amplification detected.And the assay could detect 1 contaminated bacterial from 100 units of concentrated platelet as same as BactALT bacterial culture.Conclusions Nucleic acid testing for bacterial genome 16S DNA could detect common contaminated bacterial sensitively and fast from platelet product.This assay could have the same effect when compared to bacterial culture methods when it was applied in concentrated platelet products.

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