Objective To study the effect of combining loop electrosurgical excision procedure (LEEP) and recombinant human interferon α2b (rhIFNα-2b) suppository in treatment of cervical intraepithelial neoplasia (CIN).Methods Prospective,random and control study was conducted in 82 patients with CINⅠ-CINⅢ.Before canting out LEEP to these patients,all women were performed HPV DNA detection by the method of Hybri Max.Among these patients,41 patients were assigned to the studying group,in which the patients were given rhIFNα-2b suppository for three courses of treatment after LEEP.The other 41 patients who carried out LEEP simply were assigned to the control group.Liquid-based ThinPrep cytology test (TCT) and HPV DNA were examined in the sixth and twelfth month after treatment.Results In the studying group,the cure rate was 90.2％ when LEEP ended six months,and the cure rate was 100.0％ when LEEP ended twelve months.In the control group,the cure rate was 43.9％ when LEEP ended six months,and the cure rate was 61.0％ when LEEP ended twelve months.In the sixth and twelfth month after LEEP,the difference was significant when we compared the cure rate between the two groups (x2 =19.93,19.89,all P ＜ 0.05).Conclusion The clinical effect of combining LEEP and rhIFNα-2b suppository is better than LEEP in treatment of CIN.The method can remove or destroy the cervical lesions effectively and inhibit HPV replication and spread of HPV infection.

Objective:To explore the characteristics of color Doppler ultrasound images of breast lymphoma, and to improve the coincidence rate of ultrasound diagnosis.Methods:The color Doppler ultrasound images characteristics of 24 lesions in 21 patients with breast lymphoma in Fujian Cancer Hospital from June 2011 to January 2020 were retrospectively analyzed, and the diagnostic coincidence rate was counted.Results:All the patients were female, 18 cases were unilateral, 3 cases were bilateral. ALL cases were confirmed as primary or secondary breast lymphoma by coarse needle biopsy or surgical pathology. Pathological types included 18 cases (85.7%) of diffuse large B-cell lymphoma, 1 case of anaplastic large cell lymphoma kinase (ALK)-negative anaplastic large cell lymphoma, 1 case of Burkitt lymphoma, 1 case of Burkitt lymphoma or unclassifiable lymphoma with features intermediated between diffuse large B-cell lymphoma and Burkitt lymphoma. The maximum diameter of the lesions was (5.7±2.1) cm (range 1.4-16.0 cm), and all lesions were solid in ultrasound images; 19 lesions (79.2%) were mass-type and 5 lesions (20.8%) were diffuse. According to the characteristics of internal echo, the lesions were divided into hypoechogenicity (2 lesions, 8.3%), hyperechogenicity packed with hypoechogenicity (12 lesions, 50.0%), and hyperechogenicity interweaved with hypoechogenicity (10 lesions, 41.7%). According to Adler semi-quantitative method, the blood flow of the lesions was 3 lesions (12.5%) in grade Ⅰ, 6 lesions (25.0%) in grade Ⅱ, and 15 lesions (62.5%) in grade Ⅲ. The detection rate of lesions by color Doppler ultrasound was 100.0% (24/24), but the diagnostic coincidence rate was only 41.7% (10/24).Conclusions:Most of the breast lymphoma is diffuse large B-cell lymphoma, and the lesions can be effectively screened by color Doppler ultrasound, but the diagnostic coincidence rate is low. Most of the breast lymphoma grows in the form of mass with abundant internal blood flow signals. When the ultrasound image of the breast lesion is hyperechoic packed or interweaved with hypoechoic, the possibility of breast lymphoma should be considered.

Objective To assess the clinical significance of the application of computer assisted navigation technology in excision for sacrum tumor.Methods From December 2007 to June 2009,13 patients with sacrum tumor were treated with computer navigation assisted aggressive curettage.There were 5 males and 8 females.aged 21 to 69 years,with the mean age of 44 years,10 cases were over the level of sacrum3 and 3 cases under the sacrum3.Pathologic diagnosis was chordoma in 7 cases.giant cell tumor in 4 cases and neurofibroma in 2 cases.Five cases were recurrence.The preoperative data of CT and MRI were input into the computer navigation workstation.CT images determined the scope of the invasion of tumor in bone tissue.MRI determined the scope of the invasion of tumor in soft tissue.The CT and MRI image fusion identified the precise boundaries of the tumor in CT images and made markers for navigation guidance in the operative in 10 cases.The Iso-c scan had been made for another 3 cases and fused the Iso-c images with preoperation CT images for improving the images quality.According to preoperative marker in CT images,the aggressive curettage were completed with the real time computer navigation for 7 cases,marginal resection in 4 cases and wide resection in 2.The precise surgical removal of the lesions boundary were verified by computer navigation according to the preoperative planning.Results Thirteen patients were followed up for 7 to 37 months,an average of 18 months,no recurrence cases with marginal resection and wide resection.Two cases with aggressive curettage had recurrence.Conclusion Computer navigation technology helps to precise excision the sacrum tumors,to reduce the recurrence rate.

Objective To investigate the clinical significance of nuclear factor ( NF)-κB activation in peripheral blood mononuclear cells (PBMCs) and the serum levels of correlated inflammatory cytokines in children with infant muggy syndrome(IMS).Methods Blood samples from 100 patients with IMS and those from 32 healthy infants( control group)were detected by ELISA for amount of NF-κB activation in PBMCs and for serum levels of interleukin ( IL ) -17,IL-6,tumor necrosis factor ( TNF ) -α and IL- 10 respectively from Jan 2008 to Jan 2011.At the same time,blood samples from 46 out of the above 100 patients with IMS and those from the 32 controls for positive rate of activation of NF-κB in PBMCs were detected by flow cytometry as well.The relationship between all the data and multiple organ dysfunction syndrome( MODS ) were analyzed respectively.Results As compared with that of control group,the percentage of activated NF-κB in PBMCs in 100 patients with IMS detected by ELISA [ ( 11.042 ± 6.792 ) ％ vs ( 4.528 ± 1.378 ) ％ ] and the positive rate of NF-κB activation in 46 patients with IMS detected by flow cytometry [ ( 28.780 ± 13.820 ) ％ vs (7.078 ±5.395)％ ] were both significantly higher ( P ＜0.01 ).The serum levels of IL-17,IL-6 and IL-10were also significantly higher in patients with IMS than those in control group( P ＜0.01 ).The serum level of TNF-α was higher in patients with IMS than that in control group but without significance( P ＞ 0.05 ).The percentage of activated NF-κB [ ( 14.591 ± 7.626) ％ vs ( 8.576 ± 4.851 ) ％ ],the positive rate of NF-κB activation [ ( 36.087 ± 12.056) ％ vs ( 23.590 ± 11.263 ) ％ ],and the serum levels of IL- 17,IL-6,TNF-α and IL-10 were all significantly higher in IMS patients with MODS than those in IMS patients without MODS ( P ＜ 0.01 ).Conclusion The inflammatory factors of NF-κB activation in PBMCs and the high serum levels of IL-17 and IL-6 are potent to cause inflammatory damage in IMS patients,and the serum level of IL-10 is not able to compensate the damage.The activation of NF-κB and high serum levels of IL-17,IL-6 and TNF-α are correlated with MODS.

Objective: To investigate the causal relationship between gut microbiota and polycystic ovary syndrome (PCOS) using a Mendelian randomization (MR) study, so as to provide insights into the pathogenesis of PCOS and the formulation of prevention and treatment strategies. Methods: The genetic data on gut microbiota was derived from a meta-analysis of genome-wide association studies (GWAS) involving 18 340 participants. The genetic data on PCOS was sourced from two GWAS meta-analyses in European populations, serving as the discovery set and the validation set, respectively. A two-sample MR analysis was conducted using the discovery set, with the inverse variance weighted (IVW) method as the primary approach. Sensitivity analyses employed the weighted median method, MR-Egger regression, and the MR-PRESSO test. The validation set was utilized for verification, and a meta-analysis was performed to combine the results from the two datasets. Results: Forward MR analysis results showed that nine types of gut microbiota were statistically associated with PCOS (all P<0.05). Specifically, the association of family Streptococcaceae (OR=1.442, 95%CI: 1.097-1.895), genus Actinomyces (OR=1.359, 95%CI: 1.036-1.784), genus Ruminococcaceae UCG 011 (OR=0.755, 95%CI: 0.619-0.921), genus Sellimonas (OR=0.766, 95%CI: 0.657-0.893) and genus Streptococcus with PCOS (OR=1.496, 95%CI: 1.136-1.972) remained consistent in the sensitivity analysis. Reverse MR analysis showed no evidence for the causal association between PCOS and the aforementioned five types of gut microbiota (all P>0.05). The MR analysis results of the validation set showed that there was no statistical association between the aforementioned five types of gut microbiota and PCOS (all P>0.05). However, the associations remained significant for genus Actinomyces (OR=1.226,95%CI：1.010-1.503) and genus Streptococcus (OR=1.266,95%CI：1.042-1.452) in the meta-analysis (both P<0.05). Conclusion This study provides the evidence that genus Actinomyces and genus Streptococcus are causally associated with PCOS.

OBJECTIVETo compare the bactericidal efficacy of two different cold plasma (glow discharge and dielectric barrier discharge) treatments on root canal infected with Enterococcus faecalis biofilms in vitro.

METHODSOne hundred and twenty teeth infected with Enterococcus faecalis biofilm in the roots for seven days were divided into twelve groups randomly. Two served as negative control group (gas only, no discharge). Five were teeth treated by dielectric barrier discharge cold plasma and the other five were treated by glow discharge cold plasma. The treatment time in each five groups was 2, 4, 6, 8 and 10 min, respectively. The disinfection of Enterococcus faeccalis biofilm was evaluated by colony forming unit (CFU) counting. The plasma component produced by different devices was analyzed by optical emission spectroscopy (OES).

RESULTSComparing the two plasma treatments, the plasma produced by dielectric barrier discharge had better bactericidal effect than that produced by glow discharge at different treatment time (P < 0.05). The advantage was obvious with the time getting longer. The OES indicated that active components of the two type plasmas were similar. But the peak of excited Ar atom of dielectric barrier discharge was twice as that of glow discharge.

CONCLUSIONThe cold plasma produced by dielectric barrier discharge has more bactericidal efficiency in the treatment of root canal infected with Enterococcus faecalis biofilms.

Objective To trace changes in the transcript level of the Treponema pallidum(Tp)protein Tp0751 in skin lesions of a rabbit model of early syphilis. Methods Three New Zealand white rabbits were intracutaneously injected with 0.1 ml of Tp (Nichols Seattle strains)suspensions (107 treponemes/ml)at 10 sites on the shaved back to establish a model of early syphilis. All the rabbits received a single injection with the total amount of treponemes being 107. Then, skin changes at injection sites were observed, and the size of skin rashes was recorded on a daily basis. Skin specimens sized 0.4 cm × 0.4 cm were excised from an injection site and a non-injection site(negative control)separately every 3 days for the detection of Tp0751 and Tp0574 mRNAs. The whole experiment lasted 30 days, and a total of 11 skin biopsies were carried out. Fluorescence-based quantitative PCR was performed to measure the mRNA expressions of Tp0751 and Tp0574 continuously and dynamically during the development of chancre. Results After intracutaneous injection of Tp suspensions, red papules occurred on the back of rabbits on day 6, and reached maximum size on day 19 with the formation of ulcer and chancre. On day 25, disseminated secondary syphilides gradually appeared all over the body surface of the rabbits. The mRNA expression levels of Tp0574 and Tp0751 increased at the early stage, peaked onday 15 (compared with the other time points, all P < 0.05), thereafter rapidly declined, but rose slightly on day 27. The standardized expression level of Tp0751 mRNA increased gradually after day 15, and peaked on day 24 (compared with the other time points, all P < 0.05). Conclusion The transcript level of Tp0751 was high in rabbits at the late stage of Tp clearance when generalized disseminated secondary syphilides had not appeared, suggesting that Tp0751 may be involved in the systemic spread of Tp.

Objective:To evaluate the efficacy and safety of stereotactic ablative radiotherapy (SABR) in patients with pulmonary oligometastases.Methods:Clinical data of patients with pulmonary metastases treated with SABR from 2011 to 2018 were retrospectively analyzed. The local control rate (LCR) and overall survival (OS) were calculated by Kaplan- Meier method. log-rank test was used for univariate analysis and Cox’s regression model for multivariate analysis. Results:A total of 214 lung metastases were detected in 159 patients, and the median follow-up time was 43 months. The 1-, 3-and 5-year LCR were 90.1%, 73.9% and 65.8%, respectively. The 1-, 3-and 5-year OS were 73.8%, 43.6% and 11.9%, respectively. Univariate analysis showed that biological effective dose (BED)≥100 Gy was significantly correlated with LCR ( P=0.033). Cox’s multivariate analysis showed that BED and primary tumor source were the independent prognostic factors of LCR ( P=0.023, P=0.043). No>grade 3 adverse events were observed in all patients during treatment. Conclusions:SABR is a safe and effective treatment of lung oligometastases. SABR should be actively aD ministered for pulmonary oligometastases, especially for those with lesions from lung cancer and the radiation dose should be selected as BED ≥100 Gy.

To promote the construction of a wound repair and regeneration system with Chinese characteristics, it is necessary to follow the principle of combining traditional Chinese and Western medicine, and integrate theory, clinical practice, and teaching. Traditional Chinese medicine emphasizes a holistic concept and the principle of dialectical treatment, while Western medicine focuses on etiological analysis and local treatment. The combination of Chinese and Western medicine can complement each other's advantages and improve treatment effectiveness. The key technological innovations in repairing and regenerating systems cover areas such as drug therapy, physical therapy, and the application of biomaterials. This article discusses the development potential and challenges of combining traditional Chinese and Western medicine in the field of wound repair and regeneration, providing new ideas and methods for the development of wound repair and regeneration. It is expected to bring better medical services and treatment effects to patients undergoing repair and regeneration.

Objective To investigate the expression of TP 0155 mRNA in rabbits with early infection of Treponema pallidum ( T.pallidum ). Methods Three New Zealand white rabbits were subcutaneously injected with T.pallidum Nichols Seattle strains.Each rabbit was inoculated at ten sites with 106 T.pallidum/site.Skin lesions at the primary stage of syphilis were observed at different time points. Biopsy from one of the lesions was obtained from each rabbit every three days for detection of TP 0155 mRNA and house keeping gene TP 0574 mRNA.TP0155 plasmid standard was constructed by molecular cloning technique , and the quantitative PCR was used to continuously detect the expression of TP 0155 mRNA and TP0574 mRNA from lesion at different time points.Kruskal Wallis test and Bonferroni method were used to analyze the data.Results On d6, red papules appeared on the dorsal skins of rabbits ,there were ulcers in the center of the lesions on d19,presenting typical appearance of syphilis chancre.On d24 the scab of ulcer became smaller; on d25 the rabbits showed disseminated secondary syphilis , which became smaller and disappeared on d30.The copy numbers of TP0155 plasmid standards were 7.48 ×109 copies/μL.There were significant differences in expression of both TP 0155 mRNA and TP0574 mRNA at different time points (χ2 =32.756 and 52.344,both P<0.01).The expression levels of TP0155 mRNA and TP0574 mRNA increased in the early stage, and both reached the peak at d15 (both P<0.05), and then rapidly declined. There were significant differences in normalized TP 0155 mRNA ( TP0155 ×1000/TP0574 mRNA ) at different time points(χ2 =19.758,P<0.05),which reached the peak on d24 and d30,respectively (all P<0.05).Conclusion The level of TP0155 mRNA increases with the disappearance of chancre and secondary syphilis lesions , suggesting that TP0155 might be involved in immune escape of T.pallidum.