Objective:To investigate the clinical effects of high-intensity focused ultrasound (HIFU), gonadotropin-releasing hormone agonist (GnRH-a), and levonorgestrel intrauterine extended-release system (LNG-IUS) on adenomyosis (AM) alone or in combination.Methods:The clinical and follow-up data of 338 AM patients who received conservative treatment in the First Affiliated Hospital of Xinjiang Medical University from July 2018 to March 2019 were analyzed retrospectively. The treatment related parameters, dysmenorrhea (VAS) score, menstrual volume (PBAC) score, uterine volume, recurrence rate of dysmenorrhea, hemoglobin (Hb) and carbohydrate antigen 125 (CA125) levels at 3, 6, and 12 months after treatment were compared among HIFU treatment (H group), GnRH-a treatment (G group), LNG-IUS treatment (L group), HIFU combined with GnRH-a treatment (H+ G group), HIFU combined with LNG-IUS treatment (H+ L group), HIFU combined with GnRH-a and LNG-IUS treatment (H+ G+ L group).Results:There was no significant difference in sound power, treatment time and ablation rate among the four HIFU groups ( P>0.05). The dysmenorrhea score, menstrual volume score, and CA125 levels in the 6 groups were significantly lower than before treatment ( P<0.05). The hemoglobin level of H group, H+ G group, H+ L group, H+ G+ L group continued to increase after treatment ( P<0.05). The VAS scores of the H+ G, H+ L, and H+ G+ L groups were significantly lower than those of the H and L groups at 3 and 6 months after treatment ( P<0.05). G group and H+ G group alleviated 100% of dysmenorrhea after 3 months of treatment, and the curative effect decreased afterwards. The recurrence rate of dysmenorrhea was 19.44%, 30.16%, 26.67%, 7.30%, 8.10%, 3.77% in H group, G group, L group, H+ G group, H+ L group, and H+ G+ L group, respectively ( P<0.05). The PBAC scores in the H+ G, H+ L, and H+ G+ L groups were significantly lower than those in the H, L, and G groups at 6 and 12 months after treatment ( P<0.05). The uterus volum in group L before treatment was smaller than that of the other groups ( P<0.05), and the uterus volume increased slightly in 3 months, 6 months, and 12 months after treatment than before treatment, but with no statistically significant difference ( P>0.05). The uterine volume of G, H+ G, and H+ G+ L groups were smaller than that of H and G groups at 3 months after treatment, and the uterine volume of group G at 12 months after treatment was larger than that at 3 and 6 months after treatment, but still smaller than before treatment ( P<0.05). The uterine volume, dysmenorrhea score, and menstrual volume score of the H+ G+ L group at 12 months after treatment were [(157.33±35.96)cm 3, (1.07±0.82)point, (69.57±17.24)point], which were all smaller than those of the other groups ( P<0.05). Conclusions:HIFU, GnRH-a, LNG-IUS alone or combined treatment of AM are safe and effective, but comprehensive treatment can improve clinical efficacy, delay and reduce recurrence and reduce the incidence of total hysterectomy.

Objective To investigate the application of hysterosalpingography (HSG)with iopromide in diagnosing female infer-tility.Methods 549 infertile women had performed HSG with iopromide,and X-ray images were analyzed retrospectively.Results Prevalence of uterine hypoplasia in primary infertility was higher in the minority than in the ethnic Han.Tubal obstruction was more common than hydrosalpinx and severe fimbria adhension.92.3% of the infertile women had pelvic inflammation disease.The dose of iopromide could be increased in need.Conclusion Prevalence of uterine hypoplasia is different as ethnic difference.Obstruction is the most common factor in tubal infertility.It is safe to use iopromide in HSG.

Objective To explore the clinical value of dual-source CT(DSCT) in the diagnosis of coronary artery disease by comparing the result of DSCT and coronary angiography(CAG).Methods From July 2009 to August 2010,36 patients with suspected coronary hear disease underwent both DSCT coronary angiography(DSCTCA) and selective GAG examination.The results of DSCT coronary angiography were compared with CAG which was the gold standard of diagnosing coronary disease.The sensitivity,specificity,positive and negative predictive value,and accuracy of DSCT were evaluated.Results 144 coronary arteries were well evaluated of 36 cases.The sensitivity,specificity,positive and negative predictive value,and accuracy of DSCT in the diagnosis of coronary hear disease were 100.00％,66.67％,93.75％,100.00％ and 97.20％ respectively by the number of patients;The McNemar test showed no significant difference between two methods( x2 =0.500,P ＞0.05 ) with a higher diagnosis concordance (Kapp =0.768,P ＜0.01).By detecting moderate to severe coronary artery stenosis,the sensitivity,specificity,positive and negative predictive value,accuracy were 95.24％,96.08％,90.91％,98.00％,95.83％,respectively.The McNemar test showed no significant difference between two methods(x2 =0.167,P ＞0.05) with a higher diagnosis concordance ( Kapp =0.899,P ＜ 0.01 ).Conclusion DSCT has a diagnostic accuracy of coronary heart disease close to that CAG,especially in evaluating patients with moderate to severe coronary artery stenosis,it has high compliance and consistency with CAG.DSCT is a noninvasive,safe and reliable radiographic method.

ObjectiveTo evaluate the relationship and significant between low molecular-weight protein (LMP) methylation and expression,and Uyghur women cervical lesions with human papillomavirus (HPV) infection.MethodsGenetic information was obtained from the GenBank database,specialized software was used to scan gene promoter regions,and CpG island fragment specific primers was designed,gene methylation and CpG site sequences related information were gained by the PCR amplification,vector cloning and sequencing of the bisulfate-modified cervical cancer cell DNA.Methylation status of LMP was quantitative evaluated by Sequenom MassARRAY DNA in 78 subjects with different cervical lesions; mRNA and protein of LMP2 and LMP7 were evaluated by RT-PCR and immunohistochemistry.HPV infection status determined use HPV gene chips.ResultsGene promoter region CpG fragments methylation sequencing it was detected that selected CpG sites of cervical cancer cell genome LMP7 had methylation.However no methylation site was found in gene promoter region of LMP2.The percent of LMP7 methyiation was increased steadily with the severity of cervical lesions.showing 0.0652±0.0488,0.0728+0.0548 and 0.1864+0.0893 of which with normal control,CIN and CSCC (P＜0.01).LMP7 was significantly reduced in CSCC and CIN compared with normal cervical epithelium,and its mRNA expression consistent with the results of proteins,while no significant difference in LMP2 expression.Moreover,the methylated proportion of LMP7 was negatively associated with the protein expression in cervical lesions ( F =8.69,P =0.035 ).Stratified analysis indicated that the percents of LMP7 methylation in subjects with HPV16 positive still increased( t=1.996,P=0.049).ConclusionOur findings indicated that LMP7 methylation was significantly associated with cervical lesions and HPV infection.

Objective To investigate the changes of Th1/Th2 cytokines levels in serum in patients with chronic hepatitis B patients befroe and after treatment of thymosin,and clarify the relationship with state of illness,curative effect and virological response.Methods 19 patients with chronic active hepatitis B were chosen as treatment group,10 cases as normal control group.The patients in treatment group were treated with injection of thymosin ? 1 mL,in the pre-treatment,13 and 21 weeks after treatment the cytokine levels,HBV DNA,and biochemical indicators of liver function were detected by flow cytomertry on Tuesday,Friday every week;in normal control group the serum IL-2,IFN,TNF,IL-4,IL-6,IL-10 indicators were determined and the relationship between cytokine levels and biochemical responses and virological response was analyzed.Results After thymosin treatment,the cytokine levels secreted by Th cells were increased compared with pre-treatment (P

Objective To detect the transfusion transmitted virus-like mini virus(TLMV) sequence gene in patients with chronic hepatitis and to study the TLMV infection in population.Methods Two sets of primers in the most conservative regions of Japan strains TLMV-CBD279 and CBD231 were designed to amplify TLMV templete extracted from sera of patients with chronic hepatitis B using PCR.PCR products were cloned into pGEMR-T vector and sequenced.Results The results showed that 72%of TLMV sequence isolated in China was identical to that in Japan,suggesting that there was TLMV infection in patients with chronic hepatitis B in China.The patients with hepatitis virus C and the healthy blood donor had the highest infectious rates of TLMV.Conclusion TLMV infection exists in patients with chronic hepatitis B in China.

Background and purpose: Currently, intraoperative radiation therapy (IORT) has become the adjuvant therapy of cancer. The study was to establish the daily quality assurance (QA) program and analyze dosimetric characteristics’ long-term stability for mobile IORT accelerator. Methods:The QA program of this study included two parts:safety and functionality and energy and output. The two years’ QA datasets were acquired and analyzed to investigate the stability of energy and output. Results:All safety and functionality tests passed on a daily basis. The energy index was (0.666±0.015)mm, (0.839±0.009)mm, (0.781±0.010)mm, (0.724±0.009)mm and the output dose error was (0.511 ± 0.671)%, (0.278 ± 0.516)%, (0.368 ± 0.532)%, (0.382 ± 0.912)%for all energy, respectively. There was no signiifcant time trend in the dosimetric characteristics. Conclusion:The daily QA program is suitable for mobile IORT accelerator. The long-term stability is acceptable for IORT in clinical use.

Objective To investigate the curative effects of different types of hysteroscopic surgery for endometrial polyps. Methods A total of 327 cases by different ways of hysteroscopic surgery for endometrial polyps from Nov 1999 to Nov 2004 were followed up. The mean age was (40?6) yea rs. The mean follow-up was( 3.0?0.6) years. Among 228 polyps patients in s exual maturity without desire of maintaining fertility, 53 (group A) underwent p olypectomy with electrosurgical vaporization, and 175 cases (group B) did polype ctomy with endometrial resection. Fifty-four (group C) cases (19 cases of infe rtility), who desired future childbearing, did polypectomy with endometrial rese ction of superficial layer near the polyps. Forty-five postmenopausal patients(group D) did polypectomy with endometrial coagulation. Results The time of operation: group A (15.1?0.8) second,group B (19.7?0.7) s econd,group C (20.9?0.7) second,and group D (22.1?0.8) second. None of polyps recurred for the patients of groups A and D after operation, and the recu rrent rate of groups B and C was 1.7% and 7.4%. There were no cases with amen orrhea in group C, who hoped to keep the function of fertility, but the recurren t rate of polyps was higher than other three groups. Of 19 cases of infertility , 14 cases became pregnant after the surgery. Conclusion It is feasible to select different hysteroscop ic surgery for endometrial polyps,according to different ages and the desire of childbearing of the patients.

OBJECTIVETo evaluated HER2 status using immunohistochemistry (IHC) assay and fluorescence in situ hybridization (FISH) at two different time points of tissue fixation after surgical resection of gastric cancer, emphasizing the importance of standard operation and quality control in HER2 testing.

METHODSForty-one resection specimens of advanced gastric cancer were collected with tissue fixation periods of < 30 min or > 30 min after surgical resection. HER2 status was evaluated by immunohistochemistry (IHC) assay and fluorescence in situ hybridization (FISH).

RESULTSThe frequency of HER2 expression by IHC in the samples with fixation time of < 30 min was higher than that in those of > 30 min (P < 0.05). However, no significant difference was observed by FISH (P > 0.05) between the two groups. Samples of < 30 min fixation time had high concordant results between IHC and FISH (100.0% for both positive and negative cases, Rho = 0.724, P < 0.05). In addition, HER2 expression by IHC was significantly correlated with Lauren classification, histologic differentiation, TNM stage and gender (P < 0.05).

CONCLUSIONThe time to tissue fixation after surgical resection of more than 30 min has deleterious effect on the detection of HER2 by IHC although FISH testing is not affected.

Aged ; Humans ; Immunohistochemistry ; In Situ Hybridization, Fluorescence ; Receptor, ErbB-2 ; analysis ; Stomach Neoplasms ; chemistry ; pathology ; surgery ; Time Factors ; Tissue Fixation ; methods

Objective:To explore the application of the Simodont dental trainer in preclinical manual dexterity training for dental students of different grades, and to discuss its effect by quantitatively evaluating their practice results.Methods:The evaluation was conducted among 118 students in the Department of Stomatology, Shantou University Medical College from Batch 2015 to Batch 2018. Each student had five different manual dexterity modules for training. Each module had three levels of difficulty and was required to be completed in 30 minutes. The assessment index included Target, Leeway Bottom and Sides, Container Bottom and Sides, which was provided by the Simodont dental trainer. The operating time (in seconds), the displacement of the dental hand pieces and the dental mirrors (in meters) were simultaneously recorded. SPSS 25.0 was used for statistical analysis.Results:For the index Target, Leeway Bottom and Sides, Container Bottom and Sides, the results showed that there was a statistical difference between students who passed pre-clinical training and who did not take the professional course ( P < 0.001). For the index Target, differences were showed among students from different grades in all modules ( P < 0.001). Conclusion:The circle module, channel module, hollow-circle module and cross-module in the Simodont dental trainer have sensitivity to discriminate the manual dexterity of different levels of dental students. The further assessment of the discrimination of the manual dexterity is required for assume-block module. The Simodont dental trainer can quantitatively measure the manual dexterity of dental students, which is important for the quantitative evaluation of dental preclinical education.