Objective To explore the effect of Tie-2 small interference RNA (siRNA) treatment in human hepatoma transplanted subcutaneously in nude mice. Methods Tumor cells were implanted in the hind flank of male nude mice of 6 weeks. Tumor-bearing mice were divided into two groups （gene therapy group and control group） and injected intra-tumorally with Tie-2-siRNA/Lipofectamine and saline/Lipofectamine respectively. The tumor volume and weight, serum AFP and microvessel density (MVD) and the histological change of the tumor were tested after gene therapy. Results The growth inhibitory rates in gene therapy group were 26.94%， 53.01% and 68.91% on day 4， 7 and 10 after gene therapy respectively. The tumor volumes of gene therapy group (118.47, 111.57 and 104.59 mm3) were smaller than those of the control group (162.17, 237.46 and 336.41 mm3) respectively (P＜0.01), and the weight of tumor in gene therapy group was lighter than that of the control group 〔(0.89±0.09) g vs (1.24±0.03), P＜0.01〕. The AFP value in gene therapy group was obviously lower than that of the control group 〔(107.66±24.13) ng/ml vs (266.08±50.96) ng/ml, P＜0.01〕. There was significant diference of MVD between the gene therapy group (34.63±4.07) and the control group (81.01±9.44) with the method of immunohistochemitry (P＜0.01). Histopathology in the control group showed that the tumor volumes were bigger, and a high atypic of tumor cells were seen. The main pathological changes in tumor tissue of gene therapy group were necrosis, there were massive necrosis. The apoptosis cells were seen in the both of necrosis and non-necrosis areas in only 2 mice of gene therapy group. Conclusion Tie-2-siRNA inhibits the tumor growth and tumor angiogenesis， and is a possible new approach for liver neoplasm gene therapy.
Objective To evaluate efficacy and safety of topical tacrolimus（FK506）for atopic dermatitis. Methods Randomized controlled trials (RCTs) were identified from specialized trials registered in Cochrane Skin Group (July, 2003), the Cochrane Library (issue 2, 2003), Medline (1996-2003), Embase (1984-2003) and CBM (1978-2003). We handsearched the published and unpublished data and Cochrane Skin Group 8th Annual Meeting. RCTs comparing tacrolimus with placebo or hormone were included. Data were extracted and evaluated by two reviewers independently. Results Eight randomized controlled trials involving 4 122 patients were included, with all trials of high methodological quality. Meta-analysis indicated that 0.03% tacrolimus was more effective than placebo, 1% hydrocortisone acetate and 0.1% hydrocortisone butyrate with odds ratio of 3.03 [95%CI (1.05, 8.73), P=0.04], 0.1% tacrolimus was more effective than placebo, 1% hydrocortisone acetate and 0.1% hydrocortisone butyrate with odds ratio of 3.84 [95%CI (1.43, 10.32), P=0.008], 0.3% tacrolimus was more effective than placebo with odds ratio of 3.20 [95%CI (1.31, 7.79), P=0.01], the odds ratio of 0.1% tacrolimus vs 0.03% tacrolimus was 1.40 [95%CI (1.13, 1.72), P=0.002]. No serious adverse effects were identified. Conclusions Topical tacrolimus for atopic dermatitis is more effective than placebo and 1% hydrocortisone acetate. 0.1% tacrolimus is more effective than 0.03% tacrolimus. No conclusion could be drawn when tacrolimus is compared with 0.1% hydrocortisone butyrate. Tacrolimus tends to improve EASI scores, head and neck scores as well as HRQL scores, but more randomized controlled trials are necessary to draw definite conclusions.
ObjectiveTo investigate changes of the psychological heath condition of postgraduates in professional degree (PPD) of clinical medicine under "clinical-practical and medical-educational combination" training mode.MethodsA cluster sampling method was adopted for 101 PPDs and 120 postgraduates in academic degree (PAD) of clinical medicine in grade 2015 of our university. The psychological health condition was evaluated using online questionnaires at the time of enrollment in 2015 and prior to graduation in 2018.ResultsA total of 82 valid questionnaires in PPD group and 96 valid questionnaires in PAD group were collected in 2018. Compared with 2015, the scores of K6 for assessing psychological distress within 1 month, PHQ-9 for the depression module and the PHQ-15 for assessing somatic symptoms within 1 month decreased in 2018 (P<0.05), while the scores of sleep time in Pittsburgh Sleep Index Questionnaire increased in 2018 (P<0.05). The scores of K6 and PHQ-15 within 12 months in the group with excellent academic achievement prior to graduation were higher than those in the other three groups (P<0.05), and the hypnotic scores of the group with poor academic achievement were higher than those of the other three groups (P<0.05).ConclusionsThe emotion, somatic symptoms and psychological feelings of PDDs and PADs are superior than those at the time of admission, and the ability of psychological stress adjustment gradually matured and improved. However, the pressures faced by PPDs and PADs may originate from different aspects, and the "clinical-practical and medical-educational combination" training mode has not included more pressure on the PPDs. Graduates with excellent academic achievements are under significant pressure. However, the ability to adjust is strong, and the physiological health condition of graduate with inferior academic achievements may require more attention from educators.
Objective To investigate the correlation between cervical Modic change (MC) and blood lipid and glucose levels. Methods Patients hospitalized with neck and shoulder pain in the Affiliated Hospital of North Sichuan Medical College between January 2015 and January 2021 were selected and divided into MC group and non-MC group according to whether the signal changes of cervical vertebral endplate occurred on MRI. The general data (age, gender, smoking history, drinking history), blood lipid indicators (high-density lipoprotein, low-density lipoprotein, lipoprotein a, total cholesterol, triglyceride) and blood glucose indicators (glycosylated hemoglobin, fasting blood glucose) were compared between the two groups. Multivariate logistic regression analysis was used to explore the correlation between MC and various indicators. Results A total of 160 patients were included, including 48 patients in MC group and 112 patients in non-MC group. The age [(61.46±12.10) vs. (56.22±10.65) years], total cholesterol [(5.06±1.17) vs. (4.44±1.31) mmol/L], triglyceride [(1.61±0.64) vs. (1.38±0.58) mmol/L], glycosylated hemoglobin (6.78%±1.27% vs. 5.79%±0.85%), and fasting blood glucose [(7.84±1.51) vs. (6.93±1.47) mmol/L] of the patients in MC group were significantly higher than those in non-MC group (P<0.05). There was no significant difference in gender, smoking ratio, drinking ratio, high-density lipoprotein, low-density lipoprotein or lipoprotein a between the two groups (P>0.05). Logistic regression analysisshowed that age [odds ratio (OR)=1.064, 95% confidence interval (CI) (1.022, 1.109), P=0.003], total cholesterol [OR=1.788, 95%CI (1.187, 2.694), P=0.005], triglyceride [OR=2.624, 95%CI (1.257, 5.479), P=0.010] and glycosylated hemoglobin [OR=4.942, 95%CI (2.446, 9.987), P<0.001] were risk factors of cervical MC. Conclusions Age, total cholesterol, triglyceride and glycosylated hemoglobin are risk factors of cervical MC. Elderly patients with hyperlipidemia and hyperglycemia should be alert to the occurrence of cervical MC. Controlling the levels of blood lipid and glucose may reduce the risk of cervical MC.
Objective To assess the clinical effectiveness and safety of granulocyte colony stimulating factor (G-CSF) for patients with acute lymphoblastic leukemia (ALL). Methods We searched the Cochrane Library, PubMed, EMbase, CNKI, and VIP databases from January 2000 to October 2009. Randomized controlled trials (RCTs) about G-CSF for patients with ALL were retrieved. The methodological quality of the included studies was assessed and the data was extracted according the Cochrane Reviewer’s Handbook. Meta-analyses for overall survival, complete remission, quality of life, infections, relapse rate, and adverse events were performed using RevMan 5.0 software. Results Six RCTs involving 620 patients with ALL were included. The results of meta-analyses showed that the G-CFS group was superior to the control group in the overall survival of adult ALL patients (RR=2.24, 95%CI 1.28 to 3.90, P=0.004). Conclusion G-CSF can improve the overall survival of adult ALL patients. However, it is not demonstrated that G-CSF could improve complete remission rate and quality of life, and reduce infections and relapse rate. More high-quality and large scale RCTs are required.
目的 进一步探讨更年期咽异感症的发病机制，为正确的诊治该疾病提供新的思考。 方法 试验组纳入2011年1月－2012年2月女性更年期咽异感症患者24例，年龄41～51岁；对照组纳入咽痛为主要表现的急慢性咽炎患者24例，年龄18～44岁。运用低浓度丁卡因溶液及氯霉素溶液喷雾咽腔，观察更年期咽异感症患者与急慢性咽炎患者用药后的治疗反应。 结果 更年期咽异感症患者使用丁卡因后，咽部异物感症状普遍加重，而急慢性咽炎患者咽痛症状则有减轻，组间构成比差异具有统计学意义（χ2=25.552，P＜0.05）；氯霉素溶液喷雾后，两组患者差异无统计学意义（χ2=0.520，P＞0.05）。 结论 局部炎症并非更年期咽异感症的真实原因，更年期感觉神经功能的快速退行性变所引起的感觉不适应，即咽部感觉神经功能的下降，可能是咽异感症的最本质原因，针对神经功能退行性变的处理，才是更年期咽异感症的最佳治疗方案。
Liver cancer is a common type of malignant tumor in digestive system. At present, computed tomography (CT) plays an important role in the diagnosis and treatment of liver cancer. Segmentation of tumor lesions based on CT is thus critical in clinical diagnosis and treatment. Due to the limitations of manual segmentation, such as inefficiency and subjectivity, the automatic and accurate segmentation based on advanced computational techniques is becoming more and more popular. In this review, we summarize the research progress of automatic segmentation of liver cancer lesions based on CT scans. By comparing and analyzing the results of experiments, this review evaluate various methods objectively, so that researchers in related fields can better understand the current research progress of liver cancer segmentation based on CT scans.
ObjectiveTo analyze the characteristics and reporting quality of the registered health Qigong-related clinical trials, and to analyze the progress and shortcomings of health Qigong-related clinical trials.MethodsChinese Clinical Trial Registry (ChiCTR) and ClinicalTrials.gov were electronically searched to collect the health Qigong-related clinical trials from inception to October 15st, 2020. Characteristics of trials were analyzed in the aspects of basic information, funding source, study content and more. The quality of registration was evaluated by WHO Trial Registration Data Set (TRDS).ResultsA total of 121 registered clinical trials were included. The annual registration quantity has been increasing with a peak (33.06%) reached in 2020. Among the registered trials, Baduanjin exercise- related studies accounted for the highest proportion (65.29%). The quantity of studies registered in Shanghai accounted for the most (29.75%). The largest contribution of registered trials was from Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine (5.79%). 50.83% funds in trials were originated from universities and hospitals. Type 2 diabetes, and chronic obstructive pulmonary disease were the most studied diseases in the registered trials. 90.08% trials were designed as randomised parallel control studies, and the sample sizes of trials were concentrated between 30 and 100 (71.07%), and the age of the subjects was distributed over 40 years old (46.15%). The average quality of registration completion of the two registries was 87.44%.ConclusionsAt present, the general trend of health Qigong clinical research is positive. However, these trials contain unbalanced attributes such as the research type of health Qigong, distribution of registration area and organization, allocation of funds, and age composition of subjects. The design of clinical trials and registration details are needed to be improved.
Objective To investigate the clinical efficacy of selective tarsometatarsal arthrodesis for old Lisfranc injury without significant post-traumatic osteoarthritis (PTOA). Methods The clinical data of patients with old Lisfranc injury without significant PTOA who were treated by selective tarsometatarsal arthrodesis at Chengdu Pidu District People’s Hospital between June 2013 and June 2021 were analyzed retrospectively. The improvement of patients’ Visual Analogue Scale (VAS) score, American Orthopedic Foot Ankle Society (AOFAS) midfoot score and Short Form 12 (SF-12) score before surgery and at the final follow-up were compared. Results Seventeen oldLisfranc injury patients (17 feet) without significant PTOA were finally recorded, including 12 males and 5 females. All patients completed the surgery successfully, and the surgical incisions healed smoothly after surgery without complications such as poor incision healing, soft tissue ischemic necrosis, and deep and superficial infections. All patients were followed up for an average of 22.6 months (12 to 36 months). Three months after surgery, follow-up X-ray films showed bony healing of the fused ends in all patients, and the patient satisfaction was 94.1%. Compared with the preoperative scores, VAS score (6.0±0.3 vs. 0.8±0.2), AOFAS score (50.5±1.5 vs. 86.5±0.9), SF-12 physiological score (21.9±0.6 vs. 46.1±0.5) and SF-12 psychological score (31.1±0.8 vs. 47.3±0.7) at the last follow-up improved (P<0.05). Conclusion Selective tarsometatarsal arthrodesis for the old Lisfranc injuries without significant PTOA can restore the midfoot force lines and stability, avoid stiffness after full feet fusion, preserve midfoot function, and improve patient satisfaction.
Objective To detect the contingent negative variation (CNV) in first episode deficit and non-deficit schizophrenia and the relationship between CNV and clinical symptoms. Methods Nihon Kohden evoked brain potentials machine were used to measure CNV in 60 patients with non-deficit schizophrenia (NDS), including 50 patients with deficit schizophrenia (DS) and 60 unrelated healthy controls (HC). Click-flashing paradigm was used to record the CNV and the differences among three groups were compared. The clinical status of patients with schizophrenia was determined using the Positive and Negative Syndrome Scale (PANSS). The overall functioning status was assessed using the Global Assessment of Functioning Scale (GAF). Partial correlations were computed to explore associations among the CNV in DS and the clinical data, controlling the sex, age, and education level. Results Compared to HC, both DS and NDS groups showed significantly reduced amplitude of B (F=27.38, P=0.00), significantly delayed reaction time (F=50.30, P=0.00). Compared to HC, the course of PINV in the DS group significantly shortened, while it was significantly delayed in the NDS group (F=15.32, P=0.00). Only in DS, when compared with that in HC, the latency of point A in CNV was delayed (F=61.01, P=0.00). There was no significant difference among three groups in both area of A-S2’ (F=2.34, P=0.10) and area of PINV (F=1.07, P=0.35). Amplitude of B and the course of PINV in the DS group correlated negatively with PANSS subscale of negative symptoms (r= –0.94, –0.89, respectively, Plt;0.05), whereas in the NDS group amplitude of B correlated negatively with PANSS subscale of positive symptoms (r= –0.87, Plt;0.05), but the course of PINV correlated positively with PANSS subscale of positive symptoms (r=0.88, Plt;0.05). Latency of point A in CNV, which was delayed in the DS group, correlated negatively with GAF (r= –0.48, Plt;0.05). Conclusion Generalized abnormalities of CNV existed in DS and NDS, while DS may cause more impairments in CNV than in NDS. The latency of point A in CNV may predict the social function outcomes of DS.