BACKGROUND: @entity1082 ) plays a role in the development of @entity1697 . However, the reported prevalence of @entity1697 has varied widely. METHODS: The prevalence of @entity1799 , 18 and 33 was investigated in Japanese and North-east @entity957 (OSCCs) with polymerase chain reaction (PCR). The expression of @entity876 protein was examined immunohistochemically. RESULTS: @entity1799 and 18 were detected in 7 (23.3%) and 10 (33.3%) of 30 Japanese and 11 (36.7%) and 5 (16.7%) of 30 Chinese samples, respectively. @entity1799 and 18 coinfection was detected in 3/30 Japanese and 2/30 Chinese samples. HPV 33 was not detected. There was no significant correlation between @entity1799 and 18 and the sites, gender, age and histological grade. The prevalence of both @entity1799 and 18 was similar and higher in the Japanese and North-east Chinese samples (46.7% each). @entity1799 or/and 18 @entity281 or/and @entity876 overexpression were in 22 (73.3%) of 30 Japanese samples and 24 (80.0%) of 30 North-east Chinese samples, respectively. CONCLUSIONS: @entity1799 /18 @entity281 or/and @entity876 overexpression may play an important role in developing some OSCCs. and the presence of HPV sequences and mutant @entity876 are not necessarily mutually exclusive.

Comparative study of HPV prevalence in Japanese and North-east Chinese XXXX .

@entity1697 :: ('MESH:D009062', 'Disease') :: ['oral carcinoma', 'HPV in oral carcinoma'] @entity957 :: ('MESH:D002294', 'Disease') :: ['Chinese oral squamous cell carcinomas'] @entity876 :: ('7157', 'Gene') :: ['p53'] @entity281 :: ('MESH:D007239', 'Disease') :: ['infection'] @entity1799 :: ('333760', 'Species') :: ['HPV 16'] @entity1082 :: ('10566', 'Species') :: ['Human papillomavirus (HPV']
@entity1697 :: (MESH:D009062,Disease) :: ['oral carcinoma']
