舌轮廓乳头误诊为尖锐湿疣1例

患者女 ,2 4岁。舌根部、外阴发现赘生物 1个月。在当地医院诊断为舌、外阴尖锐湿疣。治疗后舌根部情况无变化 ,后经口腔科医师会诊后诊断舌轮廓乳头 ,无需处理。

Effect of Activation-induced Cell Death of Peripheral Blood Mononuclear cells in Patients with Condyloma Acuminatum

Objective: To investigate the effect of activation-induced cell death (AICD) on cellular immune function in the condyloma acuminatum(CA). Methods: Peripheral blood mononuclear cells (PBMC) were isolated from normal healthy individuals (control group) and patients with CA. PBMC were cultured with PHA-P for 48h in vitro. Apoptosis of the PBMC was detected by flow cytometry. Supernatant cytokines (IL-2 and IL-10) were assayed by ELISA. Results: The rate of PBMC apoptosis in both CA group and control group in fresh PBMC was very low and similar in both groups(P>0.05). The rate of PBMC apoptosis within the CA group was noticeably increased compared to that of the control (P<0.001)af-ter PBMC were cultured for 48h. The level of IL-2 was significantly lower in the CA group than in the control group (P<0.001), The level of IL-10 was significantly higher in the CA group compared to thecontrol group(P<0.001). Conclusion: Study results indicate that AICD may affect cellular mediated immune function and play an important role in the pathogenesis of CA.

Molecular Characterization of Banana streak virus Isolate from Musa Acuminata in China

Banana streak virus （BSV）, a member of genus Badnavirus, is a causal agent of banana streak disease throughout the world. The genetic diversity of BSVs from different regions of banana plantations has previously been investigated, but there are relatively few reports of the genetic characteristic of episomal （non-integrated） BSV genomes isolated from China. Here, the complete genome, a total of 7722bp （GenBank accession number DQ092436）, of an isolate of Banana streak virus （BSV） on cultivar Cavendish （BSAcYNV） in Yunnan, China was determined. The genome organises in the typical manner of badnaviruses. The intergenic region of genomic DNA contains a large stem-loop, which may contribute to the ribosome shift into the following open reading frames （ORFs）. The coding region of BSAcYNV consists of three overlapping ORFs, ORF 1 with a non-AUG start codon and ORF2 encoding two small proteins are individually involved in viral movement and ORF3 encodes a polyprotein. Besides the complete genome, a defective genome lacking the whole RNA leader region and a majority of ORF1 and which encompasses 6525bp was also isolated and sequenced from this BSV DNA reservoir in infected banana plants. Sequence analyses showed that BSAcYNV has closest similarity in terms of genome organization and the coding assignments with an BSV isolate from Vietnam （BSAcVNV）. The corresponding coding regions shared identities of 88% and -95% at nucleotide and amino acid levels, respectively. Phylogenetic analysis also indicated BSAcYNV shared the closest geographical evolutionary relationship to BSAcVNV among sequenced banana streak badnaviruses.

Etiology and Prevention of Recurrent Condyloma Accuminata

The possible causes of condyloma acuminatarecurrence arc summarized: such as patients with cellularimmune denciencies, physical therapy triggering subclinicalinfective foci, sowing of the virus particles, and insufficienttherapy. Corresponding preventive measures are addressed,including: immunomodulators improving cellular immunity,ensuring the range and depth of physical therapy, and trcatingsexual partners simultaneously.

Fluorescence Quantitative PCR Detected Infection of Condyloma Acuminatum

Objective: Infection of human papillomavirus in condylomaacuminatum (CA) was detected by real time fluorescencequantitative PCR (FQ-PCR) technique. Methods: Specimens of CA-DNA quantification from 94cases were examined by real time FQ-PCR technique and 32cases were compared with the same method after 10-daystreatment. Results: CA-DNA was found in all patients, with an averageof 4.0×10^6 copies/ul. After 10 days of treatment, the averagewas 2.1×10^5 copies/ul. There was a significant difference inthe average amount of CA-DNA before and after thetreatment. Conclusion: Real time FQ-PCR is a good method forexamining CA-DNA amount and it can direct the treatment of CA.

Detection of HSV-2 Antibody in STD Patients

In order to acknowledge the multi-infectiondata of STD patients and improve the prophylaxis andtherapy for STDs, 297 patients and 30 healthy people wereexamined using the HSV-2 plasma antibody. The resultsshowed that all kinds of STD patients were infected byHSV-2 in different ratios, the highest ratio occurring insyphilis patients.

Human Papillomavirus Genotypes and Expression of p53 and p21^(WAF1) in Condyloma Acuminatum

This study investigated the relationship between human papillomavirus (HPV) genotype and expression of p53and p21^(WAF1) Expression of p53 and p2l^(WAF1) in 35 cases ofcondyloma acuminatum specimens infected by HPV6/11andHPV16/18 were studied using immunohistochemical staining.All specimens of the condyloma acuminatum case were positivefor expression of p53 and p21^(WAF1). The expression of p53 incondyloma acuminatum infected by HPV16/18 wassignificantly lower than that in specimens infected byHPV6/11.However, expression of p21^(WAF1) between the twogroups was not significantly different. Expression of p53 incondyloma acuminatum is likely related to HPV genotype,exoression of p21^(WAF1) was not related to HPV genotype.

TLMA Expression in Condyloma Acuminata from Patients with High and Low Risk HPV

Objective: To detect the activated expression oftelomerase in condyloma acuminata lesions in low-risk (6/11)and high-risk (16/18) human papilloma virus (HPV)infection and examine the role played by telomerase in theoccurrence, development and carcinomatous change ofcondyloma acuminata. Methods: Assaying the expression of telomerase and thetype of HPV in damaged skin of 42 CA patients and normalskin of 30 healthy control individuals through telomeraserepeat amplification protocol (TRAP) and polymerase chainreaction (PCR). Results: In all the normal skin controls, PCR for HPV wasnegative and only 16.7% of samples were positive for TLMAexpression; in CA lesions, HPV testing was positive in all (32cases were low-risk, 3 were high-risk, and 7 were of mixedtype) and all were positive for TLMA expression. Conclusion: TLMA may be activated by HPV infection,and in turn cause the hyperplasia of epidermal cells. It wasalso indicated that HPV, especially high risk types, canactivate TLMA. The activation of TLMA may play animportant role in abnormal hyperplasia and carcinomatouschanges in CA lesions.

Multichannel piezoelectric genesensor for the detection of human papillom a virus

OBJECTIVE: To establish a method for rapid detection and sub-typing of human papilloma virus (HPV). METHODS: We utilized the piezoelectric genosensor (PG) technique, which is a combination of the piezoelectric biosensor and gene chips for HPV identification in 22 recurrent biopsy specimens and 22 corresponding original biopsy specimens. The control samples came from normal tissue of healthy persons. A combined reaction took place on the sensor surface between the target genes and probes. The frequency of the piezoelectric sensor will decrease when such reactions occur, and the frequency decrease depends on the concentration of the target gene. Specimens were also analyzed with conventional PCR and dot blot. RESULTS: Of the 22 recurrent specimens, 15 contained HPV6 DNA, 2 HPV11 DNA, and 4 HPV16 DNA. Only one specimen was negative. All the 22 original specimens were positive: 17 harbored HPV6 DNA, 3 sequence homologous HPV11 DNA, and 2 HPV16 DNA. No HPV18 DNA was detected in any specimen. When compared with PCR and dot blot analysis, the results were essentially the same except for one specimen, which was shown to contain other sub-types of HPV. CONCLUSION: Our results show that the piezoelectric genosensor technique is a rapid and specific method to analyze HPV.

Development and optimization of nanoemulsion gel for topical delivery of imiquimod

In the present study,we aimed to formulate,optimize and characterize nanoemulsion-based gel of imiquimod for its topical administration and to improve the drug permeation.Nanoemulsions were prepared by the aqueous phase titration method and spontaneously formed by mixing specific fractions of oil phase:Smix:water.The nanoemulsion formulations were optimized by response surface methodology(RSM) using mixture design,Scheffe model.The formulated nanoemulsion was incorporated into 0.5% Carbopol 934(w/v) to enhance convenience in superficial application of the drug.The nanoemulsions were characterized in terms of droplet size,zeta potential,TEM,DSC and in vitro drug permeation.The vesicle size was 113.6 nm with polydispersity index of 0.251.The zeta potential was 34 m V.The spherical droplet shape was confirmed by TEM analysis.The drug permeation from the diffusion membrane was 73.67% in 6 h for the optimized formulation.An optimized nanoemulsion gel formulation of imiquimod was successfully developed with improved permeation using experimental design technique.The developed formulation could be further explored as a potential alternate to currently available topical formulations for the treatment of genital warts.