Oral human cytomegalovirus prevalence and its relationships with periodontitis and Porphyromonas gingivalis in Japanese adults: a cross-sectional study

Abstract Objective This study aimed to clarify the association between oral human cytomegalovirus (HCMV) and periodontitis in Japanese adults. Methodology In total, 190 patients (75 men and 115 women; mean age, 70.2 years) who visited Hiroshima University Hospital between March 2018 and May 2020 were included. Oral rinse samples were taken to examine the presence of HCMV DNA using real-time polymerase chain reaction (PCR). P. gingivalis was detected by semi-quantitative PCR analysis. Results HCMV DNA was present in nine of 190 patients (4.7%). There were significant associations between HCMV presence and the presence of ≥4-mm-deep periodontal pockets with bleeding on probing (BOP) (P<0.01) and ≥6-mm-deep periodontal pockets with BOP (P=0.01). However, no significant relationship was observed between HCMV presence and periodontal epithelial surface area scores. Logistic regression analysis revealed that the presence of ≥4-mm-deep periodontal pockets with BOP was significantly associated with HCMV (odds ratio, 14.4; P=0.01). Propensity score matching was performed between patients presenting ≥4-mm-deep periodontal pockets with BOP (i.e., active periodontitis) and patients without ≥4-mm-deep periodontal pockets with BOP; 62 matched pairs were generated. Patients who had ≥4-mm-deep periodontal pockets with BOP showed a higher rate of HCMV presence (9.7%) than those who lacked ≥4-mm-deep periodontal pockets with BOP (0.0%). There was a significant relationship between HCMV presence and ≥4-mm-deep periodontal pockets with BOP (P=0.03). A significant relationship was found between HCMV/P. gingivalis DNA presence and ≥4-mm-deep periodontal pockets with BOP (P=0.03). Conclusions Coinfection of oral HCMV and P. gingivalis was significantly associated with active periodontitis. Moreover, interactions between oral HCMV and P. gingivalis may be related to the severity of periodontal disease.

Gengivite e periodontite: detecçäo de antígeno e anticorpo pelas técnicas de imunofluorescência e imunoeletroforese em relaçäo ao Bacteroides melaninogenicus subsp. intermedius / Gingivitis and periodontitis: detection of antigen and antibody by immunofluorescence and immunoelectrophoresis in relation about Bacteroides melaninogenicus subsp. intermedius

A doença periodontal inflamatória é considerada como resultante da açäo das bactérias contidas na placa dentária. Uma vez que as bactérias inteiras näo säo encontradas na intimidade dos tecidos periodontais é provável que a doença ocorra devido à difusäo dos seus produtos através do epitélio do sulco gengival, provocando uma resposta inflamatória e imune. Assim, torna-se importante identificar esses produtos, principalmente das bactérias que predominam na placa dental, como é o caso do Bacteroides melaninogenicus e suas subespécies, que tem se distinguido como patógenos importantes na doença periodontal. O propósito deste estudo foi verificar a presença de antígenos solúveis de B. melaninogenicus subsp. intermedius nos tecidos gengivais, bem como de anticorpos séricos para o mesmo microrganismo em portadores de doença periodontal...