Objective To investigate prognosis of endometriosis and to determined correlative factors of pelvic pain associated with endometriosis after conservative surgery.Methods The clinical data in patients with pelvic pain related to endometriosis and underwent surgery treatment from January 2000 to September 2009 in Beijing Chaoyang Hospital were collected and sorted,then the patients were followed up.The data were analyzed by statistical software SPSS 13.0 for windows.Results A total of 332 patients with endometriomas were underwent conservative surgery,281 (84.6％,281/332) cases of them relieved pelvic pain.The univariate analysis showed that the effects were signficantly with age,Douglas pouch reconstruction,postoperative medical therapy,presacral neurectomy (PSN) and combined adenomyosis (all P＜0.05).The multivariate analysis also showed that age(OR=0.946,P＜0.01),Douglas pouch reconstruction (OR=0.208,P＜0.01),postoperative medical therapy (OR=0.504,P＜0.01),PSN (OR=0.121,P＜0.05) and combined with adenomyosis (OR=2.528,P＜0.01) were also the correlative factors to prognosis.Conclusion The protective factors for prognosis of pelvic pain associated with endometriosis included age,Douglas pouch reconstruction,postoperative medical therapy and PSN,while the risk factor was combined with uterine adenomyosis.

Objective To evaluate the effects of baijin capsule on behavioral changes and monoamine neurotransmitters concentration in chronic unpredictable mild stress ( CUMS ) depression rat model.Methods The depression rat model was induced by11-week chronic unpredictable mild stress combining with solitary.After the model were established, rats were given the decoction of baijin capsule ( 12.6 g/kg, 4.2 g/kg, 1.4 g/kg ) or fluoxetine hydrochloride (3.5 mg/kg) by intragastricfor 4 weeks.During the experiment period, sucrose consumption and open-field experiment were conducted to monitor the behavior of rats, such as sucrose consumption percentage, horizontal motion, and vertical motion.At the end of the experiment, the levels of the monoamine neurotransmitters in the cerebral cortex and hippocampus were analyzed by method of high performance liquid chromatography-electrochemistry.Results Compared with the normal group, the weight, horizontal displacement distance, vertical movement times, and sucrose consumption percentage of rats in model group decreased significantly after stimulated with CUMS and solitary for 7 weeks (P<0.05,P<0.01).Compared with model group, consecutively administrated for 4 weeks, horizontal displacement distance, vertical movement times, and the percentage in sugar water consumption significantly increased with the treatment of baijin capsule (P<0.05, P<0.01).Meanwhile, the content of norepinephrine (NE), dopamine (DA), and 5-hydroxytryptamine (5-HT) in the cortex were significantly increased in rats of the baijin capsule ( P <0.05 ) .Conclusions The results indicated that baijin capsule improved the behavioral disturbances in depression rat model, which were related to enhancement of the concentration of monoamine neurotransmitters in the cortex.

AIM:To investigate the effect of mesalazine treatment on regulation of Th1, Th17 and Treg cells in mice with dextran sulfate sodium ( DSS)-induced ulcerative colitis ( UC) .METHODS:The expression of IL-17, IFN-gam-ma and Foxp3 in the peripheral blood mononuclear cells ( PBMC) and intestinal mucosa lamina propria mononuclear cells ( LPMC) of DSS-induced UC mice was detected by flow cytometry analysis.The effect of mesalazine treatment on regulaiton of Th1, Th17 and Treg cells in the mice with DSS-induced ulcerative colitis was examined.RESULTS:The expression of IL-17, IFN-γand Foxp3 on CD4 +T cells were significantly higher in the PBMC of DSS-induced mice than those in control group.CD4+IFN-γ+T cells and CD4 +Foxp3 +T cells were higher in LPMC than those in control group, except CD4+IL-17 +T cells.Moreover, the Th1, Th17 and Treg cells were higher in DSS group than those in control group in LPMC.How-ever, only Tregs was higher in PBMC.Pre-treatment with mesalazine significantly decreased the number of Th17, Th1 and Treg cells of UC model mice both in PBMC and LPMC.CONCLUSION: The Th1, Th17 and Tregs cells in DSS-induced mice were significantly higher than those in control mice, suggesting that CD4 +T cell subsets play an important role in the pathogenesis of UC.Mesalazine may play a role in the treatment of UC by regulating the Th1, Th17 and Tregs cells.

Objective: To study the correlation between electronic screen use and myopia among primary and secondary school students in six provinces and cities in China, in order to provide a scientific basis for comprehensive prevention and control of myopia. Methods: From November 2020 to June 2022, a total of 16 557 primary and secondary school students from six provinces and cities in China (Beijing City, Liaoning Province, Zhejiang Province, Henan Province, Shaanxi Province, Chongqing City) were selected by stratified cluster random sampling and probability smampling methods, and a questionnaire prepared by Beijing Center for Disease Control and Prevention was used to investigate their electronic screen use. According to Screening Criteria for Myopia in Children and Adolescents, 0.5% mass concentration of compound topicamide eye drops was used to paralyze the ciliary muscle and undergo slit lamp optometry. Chisquare test was used to compare the differences between groups, and binary Logistic regression was used to analyze the association between electronic screen use and myopia. Results: About 58.3% of primary and secondary school students used electronic screens for more than two hours a day on average, and 63.4% of primary and secondary school students used continuously electronic products for more than 15 minutes at a time for nonstudy purposes. After adjusting for confounding factors, parents unrestricted use of electronic screen time and electronic screen time ≥2 h/d were positively correlated with myopia (OR=1.27, 1.13, P<0.05). Gender stratified analysis showed that boys who used electronic screen time ≥2 h/d had a higher risk of myopia (OR=1.15, P<0.05). The results of grade stratification analysis showed that parents unrestricted electronic screen use time and electronic screen time ≥2 h/d were positively correlated with myopia in the lower grade of primary school students (OR=1.34, 1.18, P<0.05). Among the higher grade of primary school students, continuous use of electronic screens for nonstudy purposes for more than 15 minutes at one time was positively correlated with myopia (OR=1.18, P<0.05). There was a multiplicative interaction between total screen time and one continuous screen time (OR=1.04, P<0.05). Conclusions Primary and secondary students in six provinces and cities in China reports excessive electronic screen usage which is associated with myopia. Schools and parents should jointly limit the use of electronic screen among primary and secondary students to reduce the occurrence of myopia.

Magnetic Resonance Imaging(MRI)technology can directly show the changes of brain network and explain the central mechanism of Tai Chi remodeling of brain structure and function.In this paper,we collected the domestic and foreign research on the influence of Tai Chi movement on the brain network by using MRI technology,and combed it from the perspective of brain structure and function changes.The results revealed that Tai Chi may promote memory function,cognitive flexibility,inhibitory control,and working memory capacity by remodeling the structure and function of the medial temporal lobe and prefrontal cortex in older adults,which may be a potential central mechanism for Tai Chi to improve memory and cognitive control in the elderly.However,there are some problems in the current research,such as small sample size,insufficient long-term follow-up,and difficult evaluation of exercise intensity.It is necessary to carry out large-sample and long-term detailed research to further verify the current research results.

Objective To develop an effective decision tree management model for smart triage of nervous system diseases based on artificial neural networks and Bayesian decision theory. Methods Bayesian decision theory was used as the theoretical basis, and convolutional neural network was used to complete the rapid specialist / sub-specialist machine learning. For the specialist or sub-specialist triage data, circular neural network and Bayesian algorithm were performed to complete the probability distribution and convergence of disease symptoms and diagnosis. Results The decision tree management model and theoretical demonstration were established. According to the characteristics of the transfer learning, the rapid learning of nervous system diseases and accurate triage system, and the remote smart triage system were successfully constructed. Conclusions The management model could provide theoretical references for further use, and alleviate to some extent the currently high rate of outpatient appointment withdrawal and changes.

Purpose To investigate the value of contrast-enhanced ultrasonography(CEUS)features in differentiating molecular subtypes of breast cancer.Materials and Methods The clinical data of 122 patients who underwent routine ultrasound examination and CEUS of breast mass before surgery and were pathologically diagnosed as breast cancer after surgery and whose immunohistochemical results were obtained in the Affiliated Hospital of Inner Mongolia Medical University from January 2020 to July 2022 were retrospectively analyzed,all patients were divided into Luminal A,Luminal B,HER-2 overexpression and triple negative breast cancers(TNBC)groups.The characteristics and parameters of CEUS among different molecular types of breast cancer were analyzed.Results The average age and expression of Ki-67 were significantly different in different molecular subtypes of breast cancer(F=12.856,χ2=211.370,P<0.05).The average age of HER-2 was the oldest,and Ki-67 was more common in Luminal B and TNBC subtypes.CEUS characteristics indicated that Luminal A and Luminal B had high,equal,or low enhancement in 17,15,28,and 27 cases,respectively,while HER-2 and TNBC had a higher proportion of high enhancement(16,12)(χ2=3.235,P=0.039).At the peak of perfusion,Luminal A,Luminal B,HER-2 were mainly unclear(15 cases,24 cases,16 cases),and TNBC was mainly clear(13 cases).HER-2 type was characterized by perfusion defect(14 cases)and peripheral perforator blood flow(11 cases),while Luminal A and Luminal B were characterized by peripheral convergence(24 cases,41 cases).Time-intensity curve parameters showed that were significant differences in ΔPeak and ΔAUC among different molecular types of breast cancer(H=12.558,22.683,P<0.05),ΔPeak and ΔAUC of HER-2 overexpression type were higher than those of other subtypes(P<0.05),which could be used as predictors of HER-2 overexpression type,while there was no statistical significance in ΔTP and ΔSharpness of different molecular types of breast cancer(P>0.05).Conclusion There may be some characteristics in the qualitative and quantitative parameters of contrast-enhanced ultrasound in different molecular subtypes of breast cancer.The typical image features of contrast-enhanced ultrasound can help to identify the molecular subtypes of breast cancer.

Danggui Buxuetang， derived from Clarifying Doubts about Damage from Internal and External Causes （Volume 2）： Treatise on Heat Injury to Stomach Qi（《内外伤辨惑论卷中·暑伤胃气论》） by LI Dongyuan in the Jin and Yuan dynasties， is a classic and famous formula for tonifying qi and generating blood that has been inherited and promoted by successive generations of medical practitioners and has been included in the "Catalogue of Ancient Classical Prescriptions （First Batch）" published by the National Administration of Traditional Chinese Medicine in 2018. The paper analyzed the historical origin， composition， dosage， processing， preparation， decocting， and taking methods， efficacy， and application of the classic formula Danggui Buxuetang by consulting ancient and modern literature and combining the key information examination principles of ancient classic prescriptions. A total of 604 pieces of information on relevant ancient literature were collected， including 186 ancient Chinese medical books， of which 40 （five in the Jin and Yuan dynasties， 19 in the Ming Dynasty， and 16 in the Qing Dynasty） had detailed records of composition， processing， and dosage. Danggui Buxuetang is mainly comprised of Astragali Radix and Angelicae Sinensis Radix. According to the ancient and modern dose conversion， there are 37.3-38.1 g of Astragali Radix and 7.5-7.6 g of Angelicae Sinensis Radix in the formula. Astragali Radix is preferably fried with honey and Angelicae Sinensis Radix with wine. Astragali Radix and Angelicae Sinensis Radix are decocted with 600 mL of water to 300 mL， and taken warm before meals. The main effect of this formula are described in ancient books as blood deficiency and fever， with symptoms of muscle fever， dryness and heat， irritability and thirst， red eyes and face， sleeplessness in daytime and night， and surging and feeble pulse which is weak under hard pressing， and it is a famous formula for replenishing qi and generating blood. Modern research shows that Danggui Buxuetang is commonly used in the treatment of various kinds of anemia， diabetic nephropathy， tumors， and cardiovascular and cerebrovascular diseases. The above research results can provide a reference for the subsequent development and research on the classic formula Danggui Buxuetang.

[Objective] To establish a real-time fluorescence quantitative PCR nucleic acid detection method of human parvovirus B19 and validate the method systematically. [Methods] Specific primers and probes for the highly conserved regions of the three genotypes of B19 virus were designed, and B19 quantitative amplification standard curves were established. The accuracy, precision (repeatability and intermediate precision), linear range, quantification limit, detection limit, specificity, anti cross contamination, genotyping and anti-interference ability of this method were verified. [Results] When the quantitative reference range for B19 virus was 2.0×10¹ to 1.0×10⁸ IU/mL, a double logarithmic regression analysis was performed between the measured values and the theoretical values, and the regression equation R²≥0.98 showed good linear correlation. The quantification limit was 20 IU/mL, with a detection rate of 100%. The detection limit was 10 IU/mL, and the detection rate is 95.23%. Three genotypes of B19 virus samples can be effectively detected. The plasma of seven non B19 pathogens, including hepatitis A virus, hepatitis B virus, hepatitis C virus, human immuno-deficiency virus, human cytomegalovirus, hepatitis E virus and Treponema pallidum, was non reactive and has good species specificity. Simultaneously, in the presence of seven other concurrent pathogens, positive samples with a weak positive concentration of E3 IU/mL could be stably detected, and the B19 nucleic acid testing method was not interfered with. When the hemoglobin concentration was 431 mg/dL, triglycerides (1 269 turbidity) and unconjugated bilirubin concentration was 20 mg/dL, this method was non reactive for all three common plasma interfering substances. In the presence of three common plasma interfering substances, positive samples with a weak positive concentration of E3 IU/mL could be stably detected, and the B19 nucleic acid testing method was not interfered with. The deviation between the detection values of standard substances at two concentration levels of S1 (E5 IU/mL) and S2 (E4 IU/mL) and the target values were≤±0.5 log value. The CV values of positive sample 1 (concentration level E5 IU/mL) and positive sample 2 (concentration level E4 IU/mL) for daily precision confirmation and continuous 5-day intra-day precision confirmation were both≤5%. [Conclusion] This method has strong specificity, high sensitivity, wide linear range, stability, reliability and high accuracy, and can be used for the detection of human parvovirus B19 nucleic acid in plasma.

【Objective:】 To understand the current situation and influencing factors of ethical knowledge, attitude, and practice (KAP) among clinical researchers, enhance their ethical awareness, and improve the quality of clinical researches. 【Methods:】 A self-designed questionnaire was used to conduct a convenient sampling survey of medical staff who have participated in clinical study. 【Results:】 A total of 6,021 subjects were investigated, with males accounting for 28.46% and females accounting for 71.53%. The average age of them was (37.47±11.46) years old. The total score of ethics and the mean scores of the three dimensions of knowledge, attitude and practice were (70.62±12.99), (59.63±12.50), (79.55±19.62) and (74.92±18.29), respectively. Multiple linear regression analysis showed that researchers with male, tertiary hospitals, doctors, ethics-related part-time jobs, postgraduate education, associate senior title or above, and training experience scored higher (P<0.05). 【Conclusion:】 Ethical attitudes have a significant mediating effect between knowledge and practice, accounting for 62.72% of the total effect. Researchers recognize the importance of ethics, but it is urgent to strengthen their knowledge learning and practical application.