CAJ | 학술논문

目的探讨不同omp1基因型沙眼衣原体(Ct)在广州地区非淋菌性尿道(宫颈)炎患者中的分布情况.方法从性病和妇科门诊及外展现场采集男性尿道和女性宫颈拭子,提取Ct基因组DNA为模板,巢式PCR扩增Ct omp1基因VD1～VD3并测序分型,分析Ct型别决定簇VD1～VD2区域的氨基酸突变情况.结果共检测1208份拭子,检出Ct 132株,对其中130株进行测序分型,共发现10个omp1基因型,分别为E型38株(29.23%)、D型25株(19.23%)、J型24株(18.46%)、F型21株(16.15%)、G型7株(5.38%)、H型5株(3.85%)、K型5株(3.85%)、B型、Ja型各2株(各1.54%)、I型1株(0.77%);可见E、D、J、F 4个型别为主要感染型别,共占83%.序列分析发现,D、B、K 3个型别在VD1～VD2区域的氨基酸存在突变.另有2例为混合感染未能确定型别.结论广州地区Ct omp1基因型别感染以E、D、J、F4种型别为主,共占83%,Ct B型也发现于男性尿道和女性宫颈.
목적 탐토불동omp1기인형사안의원체(Ct)재엄주지구비림균성뇨도(궁경)염환자중적분포정황.방법 종성병화부과문진급외전현장채집남성뇨도화녀성궁경식자,제취Ct기인조DNA위모판,소식PCR확증Ct omp1기인VD1～VD3병측서분형,분석Ct형별결정족VD1～VD2구역적안기산돌변정황.결과 공검측1208빈식자,검출Ct 132주,대기중130주진행측서분형,공발현10개omp1기인형,분별위E형38주(29.23%)、D형25주(19.23%)、J형24주(18.46%)、F형21주(16.15%)、G형7주(5.38%)、H형5주(3.85%)、K형5주(3.85%)、B형、Ja형각2주(각1.54%)、I형1주(0.77%);가견E、D、J、F 4개형별위주요감염형별,공점83%.서렬분석발현,D、B、K 3개형별재VD1～VD2구역적안기산존재돌변.령유2례위혼합감염미능학정형별.결론 엄주지구Ct omp1기인형별감염이E、D、J、F4충형별위주,공점83%,Ct B형야발현우남성뇨도화녀성궁경.
Objective To profile the omp1 genotypes of Chlamydia trachomatis (Ct) in patients with nongonococcal urethritis (cervicitis) in Guangzhou region. Methods Swab samples were obtained from the urethra of males and cervix of females in clinical settings of venereology and gynecology as well as at outreach sites for the prevention and control of sexually transmitted diseases (STDs). DNA was extracted from the swabs and nested PCR was performed to amplify the variable domain (VD) 1 - 3 of omp1 gene of Ct followed by gene sequencing. The genotypes of Ct were determined based on the amino acid mutation in VD 1 - 2 of omp1 gene. Results Totally, 1208 swabs were collected. Of them, 132 were Ct positive, and 130 positive samples underwent genotyping. Ten ompl genotypes were determined in total, including serotype E (38, 29.23%), D (25, 19.23%), J(24, 18.46%), F(21, 16.15%), G(7, 5.38%), H(5, 3.85%), K(5, 3.85%), B(2, 1.54%), Ja (2, 1.54%), I (1, 0.77%). E, D, J and F were the dominant type of Ct in this region, and amounted to 83% of all the Ct isolates. Mutations were observed within VD 1 and 2 of omp1 gene in serotype D, B and K.Serotypes were undetermined for Ct in 2 patients with mixed infection. Conclusions In Guangzhou region, E,D, F and J are the predominant genotypes of Ct, and amount to 83% of all the Ct isolates. Ct serotype B is also observed in the urethra of males and cervix of females in this region.