79例人流术后支原体感染分析

７９例人流术后支原体感染分析陆海音，杨红英，周曾娣，张明秋，汤国民Ａｎａｌｙｓｉｓｏｆｋｙｃｏｐｌａｓｍａｓｉｎｆｅｃｔｉｏｎｓｉｎ７９ｗｏｍｅｎｗｉｔｈｉｎｄｕｃｅｉａｂｏｒｔｉｏｎＬｕＨａｉ－ｙｉｎ，ｙａｎｇＨｏｎｇ－ｙｉｎ，ＺｈｏｕＺｅｎｇ－ｄ...     

几种性传播疾病病原体检测芯片的制备

目的 :为了同时多样本检测和鉴别淋病奈瑟球菌、沙眼衣原体和解脲脲支原体 3种重要的性传播疾病病原体 ,制备了寡核苷酸检测芯片。方法 :针对 3种病原体和荧光素酶基因设计特异的引物和寡核苷酸探针 ,采用硫代和氨基双功能探针修饰技术制备寡核苷酸芯片 ,以荧光标记多重不对称PCR技术为基础 ,通过将单链PCR产物与芯片杂交实现对性传播疾病病原体的检测。结果 :对 10种与待检病原体无关的菌及定量有限稀释的荧光素酶和 3种病原体基因质粒模板进行芯片检测 ,结果表明芯片对待检病原体特异 ,其检测 4种基因的灵敏度均为 5×10 3 拷贝质粒。对 2 4份性传播疾病患者标本进行芯片检测 ,沙眼衣原体感染率为 10 0 % ,与淋病奈瑟球菌混合感染率为 83.3% (2 0 / 2 4 ) ,与传统PCR诊断结果完全一致。在 2 4份标本中 ,淋病奈瑟球菌、沙眼衣原体和解脲脲支原体三重感染病例芯片诊断为 3例 ,混合感染率为 12 .5 % (3/ 2 4 ) ;而传统PCR诊断为 4例 ,混合感染率为 16 .7% (4/2 4 ) ,两种方法的符合率为 75 %。结论 :该芯片是一种可靠检测 3种病原体的方法 ,它可快速提供有关患者混合感染的情况 ,因而为指导个性化治疗提供及时可靠的诊断依据。     

女性生殖道不同部位检测支原体的序贯试验分析

目的探讨解脲脲原体和人型支原体在女性生殖道的主要寄生部位.方法采用载量一致的标准无菌棉拭子分别于女性阴道穹窿和宫颈口采样,用法国生物梅里埃ID试剂进行解脲脲原体和人型支原体的培养鉴定及半定量计数,按照双向质反应开放型序贯试验设计,对检测结果进行比较分析.结果阴道穹窿部位标本中两种支原体的总阳性数和≥10^4ccu/ml半定量阳性数均高于宫颈口标本.结论对女性进行生殖道支原体感染的检测时应采集阴道穹窿标本,以提高检出率.     

不同人群生殖道解脲支原体感染症流行病学研究

本文报告了对２８１名女性性乱者和３００名正常对照妇女生殖道解脲支原体（Ｕｕ）感染状况的流行病学研究。性乱妇女生殖道Ｕｕ感染率为５４．４５％，其他性病患病率为２４．５６％，而正常对照妇女分别为２８．６７％和０．６７％，差异有极显著性意义（Ｐ〈０．０１）。分析结果表明：生殖道Ｕｕ感染的主要流行因素为性生活混乱、性伴数多、性活动初始年龄较小、社会经济地位低、文化程度差等；性接触是主要传播途径；选用避孕套     

The correlation of ureaplasma urealyticum infection with infertility

Summary. A prevalence study of Ureaplasma urealyticum (UU) infection of the male genital tract was carried out in Shanghai between March 1992 and June 1995. Significantly higher frequency of UU infection was found among infertile males (549/1416) as compared to fertile controls (34/375). Examination of 8 specimens each from infertile men and fertile subjects by electron microscopy, immunogold and immunofluorescence techniques, demonstrated adhesion of Ureaplasma urealyticum to the membrane of spermatozoa and exfoliated germ cells. In addition, gold particles on Ureaplasma urealyticum were found to be adhered to the sperm surface in 4 of the 8 samples. Strong specific anti-UU fluorescence was detected in 6 of 8 samples, mainly on the midpieces and post-acrosomal regions of the spermatozoa.
To further study the effects of Ureaplasma urealyticum on fertility, 47 male Sprague-Dawley (SD) rats were infected artificially with Ureaplasma urealyticum serotype 8 (T960). Morphological changes in the seminiferous tubules were observed 3–5 weeks after inoculation in the sacrificed animals. Dramatic impairment of spermatogenesis of both testes was found in 11 rats. Mating experiment confirmed infertility in 12 of 40 rats. Offsprings of the infected rats were significantly smaller than those of controls in terms of prenatal weights and birthweights.     

Expression of inducible nitric oxide synthase induced by lipid-associated membrane proteins of Ureaplasma urealyticum is regulated by nuclear factor κB-mediated mechanism in murine macrophages

U.urealyticumisthesmallestprokaryoticorgan ismcapableofself replication.Thetinymicroor ganismcouldbeisolatedfromurogenital,placen tasandtherespiratorytractsofpreterminfants.Moreover,U.urealyticuminfectionmaybein volvedinnon specificurethritis(NSU),prostati tis,postpartumfever,infertility,pelvicinflamma torydisease,neonatalpneumoniaandevenchronic lungdisease(CLD)[1].ItisknownthatU.urealyticumlackscellwallstructureandcontains abundantmembraneproteins,butitspathogenicity isstillunknownclearly.…     

Ureaplasma in lung. 2. Association with bronchopulmonary dysplasia in premature newborns

Infants with Ureaplasma urealyticum in the lower respiratory tract are at risk for chronic lung disease (CLD) or bronchopulmonary dysplasia (BPD) but causality has been difficult to prove. The goal of this study was to identify ureaplasma in human neonatal lung tissue using the in situ hybridization (ISH) procedure described in Part 1 (Exp. Mol. Pathol., in press) of this report. By correlating their presence with the histopathologic findings, it may be possible to provide further evidence of the pathogenicity of ureaplasmas and their association with BPD. Lung autopsy tissue from seven infants with positive cultures and seven infants with negative cultures for ureaplasma were included in the study. All culture-positive infants were positive for ureaplasma on ISH and all had histopathologic evidence of BPD. Two of the seven infants with negative cultures were positive for ureaplasma with ISH. Of interest, these two infants were also found to have BPD at autopsy. The other five infants with negative cultures were also negative for ureaplasma on ISH and had no evidence of BPD. This study correlates the presence of U. urealyticum by ISH with the finding of BPD on histopathologic evaluation and provides evidence that it has a role in the development of CLD.     

Drift of tetM determinant in urogenital microbiocenosis containing mycoplasmas during treatment with a tetracycline antibiotic

We studied the correlation between genetic transfer of tetM determinant in Tn916 conjugative transposon by urogenital mycoplasmas (Mycoplasma hominis and Ureaplasma urealyticum) and changes in the bacterial repertoire during treatment with a tetracycline antibiotic. Basic conditions favoring the nonspecific transfer of tetM determinant into mollicute cells are determined and the allele polymorphism of tetM determinant in clinical strains of M. hominis and U. urealyticum is evaluated. The structure of tetM gene in clinical mycoplasma and ureaplasma strains is characterized by a peculiar mosaic pattern and differs from all previously described alleles of this gene. The results suggest that tetracycline resistance in mollicutes is determined by mechanisms alternative to genetic transfer of tetM determinant.     

The role of Ureaplasma parvum serovar-3 or serovar-14 infection in female patients with chronic micturition urethral pain and recurrent microscopic hematuria

BackgroundUreaplasma parvum (UP) is commonly isolated in the genitor-urinary tract and may cause various clinical features, including microscopic hematuria (MH). Some UP serovars are more commonly related with specific urogenital disease, but the evidences have been conflicting. This study primarily aimed to research the possible associations between specific UP serotypes and genito-urinary pathogenicity in female patients showing MH with/without chronic micturition urethral pain (CMP).MethodsThis study retrospectively reviewed 276 female patients having MH with/without CMP, who visited health screening center or female infertility clinic. All patients underwent multiplex polymerase chain reaction (PCR) tests with vaginal and urine samples to evaluate the infection rate and serotypes of UP. The antimicrobial susceptibility of UP and the predictors of CMP among UP infected patients were also analyzed. All patients were followed up at least for 6-months.ResultsForty-nine patients (17.8%) showed urinary UP infection. Urinary UP serotyping showed the prevalence of seorvar-1, -3, -6 and -14 were 24.5%, 30.6%, 18.4% and 26.5%, respectively. 79.6% of the urinary UP positive patients accompanied vaginal UP infection. 22 patients of the cohort (8.0%) had CMP whereas serovars-3 and -14 accompanied CMP in 54.5% and 41.0% cases, respectively. No serovars-6 infection case had CMP. 26.4% of the cohort were infertile whereas 10.9% of these infertile patients were positive for urinary tract infection with UP serotype-3 or -14. Doxycycline, josamycin and pristinamycin were the most active antibiotics with the lowest rate of resistance (0.0%) for treating UP. At 1-month post-initial treatment with doxycycline, all UP serotypes were eradicated and no patient complained of urethral discomfort. However, simultaneous urinary and vaginal reinfection of serovar-3 (5 cases) and serovar-5 (1 case) were confirmed at 3-months post-initial doxycycline therapy. The logistic regression analyses revealed that serovars-3 [hazard ratio (HR) 1.354, P value 0.018] and -14 (HR 1.103, P value 0.046) were significantly associated with CMP in female patients having MH.ConclusionsUP serovars-3 and -14 infections could be associated with CMP in female patients having MH. Doxycycline, josamycin and pristinamycin were effective for treating UP. Serovar-3 showed higher reinfection rate than other serotypes after antibiotics treatment.     

解脲脲原体套式（Nested）PCR检测研究

本文报告解脲脲原体（ＵＵ）的套式（ＮＥＳＴＥＤ）ＰＣＲ检测方法。经方法学考核表明，本法的特异性、灵敏度以及试剂的稳定性和对临检标本的顺应性均较好。９３份各种生殖道炎症患者之宫颈拭子标本套式ＰＣＲ检出２１份阳性（阳性率２２．６％），而市售ＰＣＲ试剂盒仅检出１份阳性（阳性率１．１％）。前者阳性检出率明显高于后者（Ｐ＜０．０１）。