Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2009
[Study and analysis on the quantitive detection of EBV-DNA in adenoidal hypertrophic and tonsillitis tissues of children].
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Zhang Xiaotong, Li Hongyue, Liu Xuemei, Zhang Qing, Liu Hui, Wang Xiangling, Ling Ying
Аннотация
OBJECTIVE: To investigate the epidemiology of EBV in adenoidal hypertrophy and chronic tonsillitis and discuss the affection of EBV on the nosogenesis of adenoidal hypertrophy and tonsillitis of children.
METHOD: Fifty-two children with chronic tonsillitis and/or adenoidal hypertrophy had the operations of the tonsillectomy and/or the adenoidectomy. These tissues resected and plasma of all cases were detected to find EBV-DNA by RQ PCR.
RESULT: The infection rate of EBV in the tissues of adenoidal hypertrophy and tonsillitis of children was 51.9%. The boys' infection rate of EBV was 50.0%, and the girls' infection rate of EBV was 55.6%, which had not significantly different. The EBV infection rate in the tissues of tonsillitis was 40.4%, The EBV infection rate in the tissues of adenoidal hypertrophy was 48.9%, which had not significant difference. The school age group (7- to 14-years-old) presented higher infection rate of EBV in the tissues of adenoid and tonsil (65.5%) than the pre-school children group (2- to 6-years-old) (34.8%). Comparing the copies numbers of EBV-DNA in the different degrees of adenoidal hypertrophy, we found that the copies numbers of EBV-DNA in the severe hypertrophy group were higher than the midrange and slight hypertrophy groups (P<0.05). Meanwhile we detected EBV-DNA in these childrens' blood plasma by RQ-PCR. No blood plasma was detected EBV-DNA copies higher than normal (< 1 x 10(3) copies/ml).
CONCLUSION: The tissues of adenoidal hypertrophy and tonsillitis had same sensitivity to EBV. There was not significant difference between the infection rates of the boys and girls with adenoidal hypertrophy and/or tonsillitis. With these children growing up and the course of diseases prolonging, the infection rate of EBV increased correspondingly. There was a certain correlation between the hypertrophy of adenoid and EBV. There were no EBV-DNA fragments in blood plasma of the children with adenoidal hypertrophy and/or tonsillitis. So there were essential different between benign hyperplasia and nasopharyngeal carcinoma.
METHOD: Fifty-two children with chronic tonsillitis and/or adenoidal hypertrophy had the operations of the tonsillectomy and/or the adenoidectomy. These tissues resected and plasma of all cases were detected to find EBV-DNA by RQ PCR.
RESULT: The infection rate of EBV in the tissues of adenoidal hypertrophy and tonsillitis of children was 51.9%. The boys' infection rate of EBV was 50.0%, and the girls' infection rate of EBV was 55.6%, which had not significantly different. The EBV infection rate in the tissues of tonsillitis was 40.4%, The EBV infection rate in the tissues of adenoidal hypertrophy was 48.9%, which had not significant difference. The school age group (7- to 14-years-old) presented higher infection rate of EBV in the tissues of adenoid and tonsil (65.5%) than the pre-school children group (2- to 6-years-old) (34.8%). Comparing the copies numbers of EBV-DNA in the different degrees of adenoidal hypertrophy, we found that the copies numbers of EBV-DNA in the severe hypertrophy group were higher than the midrange and slight hypertrophy groups (P<0.05). Meanwhile we detected EBV-DNA in these childrens' blood plasma by RQ-PCR. No blood plasma was detected EBV-DNA copies higher than normal (< 1 x 10(3) copies/ml).
CONCLUSION: The tissues of adenoidal hypertrophy and tonsillitis had same sensitivity to EBV. There was not significant difference between the infection rates of the boys and girls with adenoidal hypertrophy and/or tonsillitis. With these children growing up and the course of diseases prolonging, the infection rate of EBV increased correspondingly. There was a certain correlation between the hypertrophy of adenoid and EBV. There were no EBV-DNA fragments in blood plasma of the children with adenoidal hypertrophy and/or tonsillitis. So there were essential different between benign hyperplasia and nasopharyngeal carcinoma.