Background :otitis media is considered the more diseases common spread related hearing loss ,This study is designed to focus on TLR4 expression that stimulating result presence LPS in otitis media
Objective :detect the genotype more infection in otitis media on blood patients sample expression in PCR Technical.
Methods :The current study blood specimens we get of 50 patient and chronic Otitis media and 50 blood samples from healthy people to Extracting and dissection of the DNA blood gram negative bacteria and evaluate the mechanical and work of LPS and its effect on Toll like receptor4.
Results :The results show most patients with P. arogenosia isolates have GG genotype 9 in comparison with other genotype AG, 15 and AA 26 and control group show GG genotype 4 in comparison with other genotype AG 11, and AA 36 .
Conclusions: The study is showed a high rate of chronic otitis media in patients with the GG genotype, suggesting that this genotype may be a risk factor compared to the control group. On the other hand, the AA genotype was found to be ӏow in patients but high in the control group, indicating a possible is protected factor.