Objective To explore the differences between the conservative treatment and the operative treatment in the management of cervical spinal cord injury, and the timing of the operation. Methods The therapeutic effectiveness o f the 45 cases who were treated from October 1996 to January 2002 was analyzed. 21 of them underwent conservative treatment and 24 operative treatment. The corr elation between the therapeutic effects of the operation and its timing was expl ored. Results The myeloid functional recovery was poor in the patients who had b een treated with conservative means but good in those who had been given an oper ation. The earlier the operation, the more effective it could be, and the higher the probability of the myeloid functional recovery. Conclusions The operative treatment promises better outcome than the conservative treatment. To get the be st effects, the operation should be done within one month after the injury, for the longer the lapse between the injury and the operation, the worse the effect.

With the continuous improvement of various imaging techniques, the morbidity of polypoid lesions in gallbladder is increasing year by year. However, owing to the lack of effective means of diagnosis before undergoing the surgery, there is a large number of patients who do not have definite indications of surgery for prophylactic cholecystectomy. Therefore, this text will carry out a comprehensive narration of the imaging features, epidemiological characteristics and pathological types about the polypoid lesions in gallbladder, summarizing the experience of diagnosis and treatment of the disease, helping the option in clinical treatments.

Objective To determine the risk factors for imipenem-resistant Pseudomonas aeruginosa (IRPA) infections in neonatal intensive care unit (NICU).Methods One hundred and eighty-eight Pseudomonas aeruginosa infected children (confirmed by pathogenic examination) in the NICU of Maternal and Child Health Hospital of Guangdong from January 1,2008 to December 31,2011,were chosen as the objects of study,and were divided into two groups.The first group included 73 children that had been isolated with IRPA strains(IRPA group),and the second group included 115 children that only had imipenem-sensitive Pseudo monas aeruginosa (ISPA) strains (ISPA group).Chi-square test or t-test was applied.The risk factors were investigated by univariate or multivariate Logistic regression analysis.Results Data from univariate analysis showed that the gestational age and birth weight of neonates were lower than those in ISPA group [(34.0±3.5) weeks vs (35.6±2.8)weeks,t=3.413,P＜0.01; (1848.1±276.4) g vs (2110.7±345.6) g,t=5.472,P＜0.01].There were more neonates with gestational age ≤ 32 weeks [67.1％ (49/73) vs 45.2 ％ (52/115)],birth weight ＜1500 g [73.9％ (54/73) vs 33.0％(38/115)],small for gestational age [68.5％ (50/73) vs 29.6％ (34/115)],receiving imipenem [72.6％ (53/73) vs 27.0％ (31/115)] or the third generation cephalosporins [65.8％ (48/73) vs 33.0％ (38/115)] two weeks before the isolation of Pseudomonas aeruginosa,and mechanical ventilation [78.1％ (57/73) vs 61.7 ％ (71/115)],deep vein catheterization [83.6％(61/73) vs 65.2％(75/115)] in the IRPA group than in the ISPA group (all P＜0.05 or 0.01).The multivariate Logistic regression analysis revealed that imipenem treatment within two weeks before the isolation of Pseudomonas aeruginosa (OR=6.409; 95％ CI:1.926-21.333,P =0.002) was an independent risk factor.Conclusions IRPA infection in NICU hospitalized infants is strongly related to their gestational age and birth weight.History of imipenem administration could be an independent risk factor.

Objective To investigate the role of miR-592 in the Glioma.Methods We first analyzed the expression of miR-592 in Glioma tissues from patients by quantitative PCR.We transfected U251 cells with miR-592 mimics and then detected the growth of cells by MTT assay.We performed dual-luciferase reporter assay and western blot assay to examine whether Runx2 was the direct target of miR-592 in U251 cells.In order to test whether Runx2 was the functional target of miR-592,we determined the cell growth curve by down-regulating the level of Runx2.Moreover,we also detected the apoptosis of U251 after Runx2 knockdown.Results The expression of miR-592 was significantly reduced in glioma tissues (t=2.752,P--0.013).Over-expression miR-592 remarkably increased the apoptotic rate of U251 cells compared with the control group (t=2.127,P=0.031;t=2.284,P=0.026).Flow cytometry analysis showed that MiR-592 significantly promoted apoptotic cell death of U251 cells Apoptosis rate was 7.2％±0.68％ in miR-592 group and 17.47％±1.45％ in control group (t=3.294,P=0.007).The results of double luciferase assay and Western blot assay showed that miR-592 directly targeted the 3'Runx2 of-UTR to inhibit the level of Runx2 protein.The effect of down-regulation of Runx2 on the growth of U251 cells was detected,the results showed that growth was significantly slower in the cells transfected with Runx2 siRNA than in those without Runx2 siRNA (t=3.124,P=0.O11).Detection of cycle by flow cytometry showed that runx2 down-regulated the apoptosis rate of U251 cells.Tumor growth curve showed that overexpression of miR-592 significantly inhibited tumor growth and the down regulation of Runx2 expresssion also significantly inhibited tumor growth.Conclusion miR-592 suppresses the growth and promotes the apoptotic rate of U251 cells by targeting Runx2.

Objective To detect plasma interleukins-35 (IL-35 )level in the patients with active tuberculosis complicated with bronchiectasis and to analyze its clinical significance.Methods Peripheral blood of patients with active tuberculosis from depart-ment of Dongguan 6th People′s hospital were collected,assigned to the active tuberculosis complicated with bronchiectasis group and active tuberculosis group.The healthy volunteers served as the control group.The plasma IL-35 level was measured by ELISA, and peripheral blood neutrophils and lymphocytes were detected by hematology analyzer.Results The levels of plasma IL-35 signif-icantly increased in both patients with active tuberculosis complicated with bronchiectasis and patients with active tuberculosis.The level of plasma IL-35 of patients with active tuberculosis complicated with bronchiectasis was significantly higher than that of the patients with active tuberculosis.The absolute value and percentage of peripheral blood neutrophils of patients with active tubercu-losis complicated with bronchiectasis were significantly higher than those of healthy volunteers.However,the percentage of periph-eral blood lymphocytes of patients with active tuberculosis complicated with bronchiectasis was significantly lower than that of healthy volunteers.Pearson correlation analysis showed that the absolute value of peripheral blood neutrophils of patients with ac-tive tuberculosis was positively correlated to the level of plasma IL-35.Conclusion IL-35 may play an important role in the progres-sion of active tuberculosis complicated with bronchiectasis.The determination of IL-35 may be helpful to the diagnosis of patients with active tuberculosis complicated with bronchiectasis.

Objective: To compare the differences of dietary behavior between autistic children and normal children, and to explore the dietary behavior problems and their influencing factors in autistic children, so as to provide theoretical basis for improving dietary behavior problems and guiding scientific feeding of autistic children. Methods: 113 autistic children aged 2-7 from a hospital and an autism rehabilitation training institution in Urumqi were selected as the case group and 223 children aged 2-7 from a hospital in Urumqi as the control group. Results: The results showed that there were significant differences between the two groups in the main type of care, caregiver education, caregiver occupation and monthly per capita economic income(P<0.05). The scores of picking food, food response, unhealthy eating habits, overeating response and emotional eating were significantly higher in the case group than in the control group, while the scores of extrinsic eating and active eating ability were significantly lower in the case group than in the control group(P<0.05). Conclusion The main dietary problems of autistic children include severe picky eating, food response to different degrees, over fullness response, bad eating behavior, emotional eating and so on.

Objective To describe the application of Vapocoolant spray for alleviating pain during intravenous cannulation in foreign countries. Methods We interviewed literature related with Vapocoolant spray for alleviating pain during intravenous cannulation. The databases included China National Knowledge Infrastructure, and Wanfang Data, Web of Science, PubMed. Results It is still controversial that Vapocoolant spray could alleviating pain during intravenous cannulation and there are few studies about Vapocoolant spray in China. Conclusions More high quality randomized controlled studies are needed to provide evidence for the controversy. Provide reference for medical staff with alleviate pain during intravenous cannulation.

Objective:To investigate the effects of massive blood transfusion on serum electrolyte balance and serum levels of C-reactive protein (CRP), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in patients with severe trauma.Methods:A total of 83 patients with severe trauma who received treatment in Eastern District of LiHuili Hospital, Ningbo Medical Center between July 2019 and December 2020 were included in this study. All of them underwent blood transfusion. They were divided into massive blood transfusion group ( n = 29) and general blood transfusion group ( n = 54) according to the volume of blood transfused. Changes in coagulation function, electrolyte, liver-kidney function and inflammatory factor levels pre- and post-blood transfusion were compared between massive blood transfusion and general blood transfusion groups. Results:At 1 day after blood transfusion, activated partial thromboplastin time (APTT) and prothrombin time (PT) in the massive blood transfusion group were (45.64 ± 2.78) seconds and (17.71 ± 2.08) seconds, respectively, which were significantly longer than those in the general blood transfusion group [(41.02 ± 2.80) seconds, (15.35 ± 1.72) seconds, t = 5.53, 7.18, P < 0.05). At 1 day after blood transfusion, levels of tumor necrosis factor-α, interleukin-6 and C-reaction protein in the massive blood transfusion group were (1.84 ± 0.32) μg/L, (113.72 ± 13.34) ng/L, (28.94 ± 4.22) mg/L, respectively, which were significantly increased compared with those measured before blood transfusion [(1.28 ± 0.29) μg/L, (95.18 ± 10.64) ng/L, (16.48 ± 3.37) mg/L, t = 6.98, 5.85, 12.42, all P < 0.05]. Levels of tumor necrosis factor-α, interleukin-6 and C-reaction protein in the general blood transfusion group were (1.34 ± 0.27) μg/L, (98.54 ± 9.62) ng/L, (20.05 ± 3.30) mg/L, respectively at 1 day after blood transfusion, which were significantly increased compared with those measured before blood transfusion [(1.23 ± 0.26) μg/L, (94.22 ± 8.82) ng/L, (16.16 ± 3.39) mg/L, t = 2.15, 2.43, 6.04, all P < 0.05]. At 1 day after blood transfusion, serum levels of tumor necrosis factor-α and C-reaction protein in the massive blood transfusion group were significantly higher than those in the general blood transfusion group ( t = 7.53, 10.59, both P < 0.05). At 1 day after blood transfusion, serum levels of K + and Ca 2+ in the massive blood transfusion group were (3.56 ± 0.54) mmol/L and (1.87 ± 0.28) mmol/L, respectively, which were significantly lower than those in the general blood transfusion group [(4.27 ± 0.34) mmol/L, (2.26 ± 0.24) mmol/L, t = 7.34, 6.65, both P < 0.05]. Serum levels of alanine aminotransferase and aspartate aminotransferase in the massive blood transfusion group were (52.46 ± 20.27) U/L, (82.37 ± 31.15) U/L, respectively, which were significantly higher than those in the general blood transfusion group [(37.57 ± 10.31) U/L, (49.35 ± 10.14) U/L, t = 4.44, 7.14, both P < 0.05)]. The incidence of abnormal liver function in the massive blood transfusion group was significantly higher than that in the general blood transfusion group [62.07% (18/29) vs. 29.63% (16/54), χ2 = 10.13, P < 0.05)]. Conclusion:The internal environment of patients with severe trauma will change after massive blood transfusion. Their coagulation function, inflammatory factors, liver function and electrolyte balance should be monitored in time.

Objective To obtain a non-invasive subclinical hypothyroidism ( SCH) mouse model, and to explore microRNAs profile related to lipid metabolism in the model mice. Methods C57BL/6 male mice (8 weeks) were treated with methimazole ( MMI, 0. 08 mg/kg BW/d) to construct SCH mouse model. MicroRNAs profiling analysis was performed by real-time quantitative polymerase chain reaction ( qRT-PCR) . Results Compared with the control group, the serum thyroid stimulating hormone ( TSH ) in subclinical hypothyroidism group increased significantly (P>0.01), while the serum free thyroxine(FT4) level did not show significant difference between the two groups (P>0. 05), which was in line with the diagnostic criteria of SCH. SCH mice was accompanied by dyslipidemia and liver lipid metabolism disorders. Four lipid metabolism related miRNAs, miR-33, miR-122, miR-199a-5p, and miR-375 in the liver of SCH mice were significantly decreased compared with those of control ( P>0. 05). Conclusion The noninvasive SCH model generated by MMI and miRNAs profile provide an animal model and a molecular basis for the study of SCH related lipid metabolism disorders.

Objective To construct the prokaryotic expression vector of human esophageal cancer related gene 4 (ECRG4), to purify the recombinant ECRG4 protein and to verify the biological function of the recombinant ECRG4 protein. Methods DNA recombination technology was utilized to construct the ECRG4 protein prokaryotic expression vector. The recombinant ECRG4 protein was purified with the transformation of escherichia coli. Then the purity of the recombinant ECRG4 protein was examined by using sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis. Furthermore, esophageal cancer EC-18 cell line was treated by recombinant ECRG4 protein (10 μg/ml) for phosphate buffer (PBS) 48 h respectively, and the tumor cell cycle change was examined by using flow cytometry. Results SDS-PAGE analysis showed that the high purity of recombinant ECRG4 protein was obtained and the ECRG4 protein prokaryotic expression vector was successfully constructed. The cell proportion of G1 phase in PBS control group was lower than that in the recombinant ECRG4 protein group [(60.4 ±2.1) ％ vs. (71.6 ±1.8) ％; t= 25.695, P= 0.002]. The cell proportion of S phase in PBS control group was higher than that in the recombinant ECRG4 protein group [(24.6±1.4) ％ vs. (16.5±1.0) ％; t= 36.905, P= 0.001]. The cell proportion of G2/M phase in PBS control group was higher than that in the recombinant ECRG4 protein group [(15.0 ±1.1) ％ vs. (11.9 ±0.8) ％; t=6.471, P=0.023], which indicated that the recombinant ECRG4 protein could induce the G1 phase arrest of EC-18 cells. Conclusion The ECRG4 protein prokaryotic expression vector is successfully constructed. And the recombinant ECRG4 protein has an active biological function in esophageal carcinoma.