Objective To investigate the clinical significance of NaviCam magnetic-controlled capsule endoscopy (NMCE) system in the examination of upper gastrointestinal tract.Methods A total of 39 healthy volunteers were enrolled in the present study.NMCE system was used to examine upper gastrointestinal tract.The safety,gastric preparation,visualization and comfort of the subjects were evaluated.Results Visualization of the Z-line,gastric cardia,fundus,body,angulus,antrum and pylorus was subjectively assessed as more than 75％ mucosa in 19 (48.71％),37 (94.87％),25 (64.10％),30 (76.92％),39 (100.00％),39 (100.00％),and 39 (100.00％),respectively.The observation time was 1.5,3.0,8.0,17.0,3.0,3.0,5.0 min respectively.The capsule was driven into duodenum positively in 25 (64.10％).Seven subjects went into small bowel without control.The one-time visualization efficacy was 97.43％ (38/39).Only one subject felt foreign body sensation.All subjects extracted the capsule within 7 days.Conclusion Our study provides a preliminary assessment of the NMCE on its feasibility and safety.It is comfortable with no chance of cross-infection.NMCE system is a useful tool for upper GI examination and will have a good future.

Esophagus ; pathology ; Female ; Foreign Bodies ; complications ; diagnostic imaging ; Humans ; Infant ; Radiography, Thoracic ; Tomography, X-Ray Computed ; Trachea ; pathology ; Tracheoesophageal Fistula ; diagnostic imaging ; etiology ; surgery

Objective To compare the quality of life before ischemia postconditioning and 6 months after ischemia postconditioning in patients with acute ST segment elevation myocardial infarction,and investigate the related risk factors.Methods One hundred and twenty-nine patients with acute ST segment elevation myocardial infarction were given the ischemie postconditioning.The quality of life was evaluated before ischemia postconditioning and 6 months after ischemia postconditioning by 36-item short-form health survey (SF-36) and seattle angina questionnaire (SAQ).Results In acute ST segment elevation myocardial infarction patients treated with ischemia postconditioning,the scores of SF-36 and SAQ were significantly lower at 6 months after ischemia postconditioning than those before ischemia postconditioning [SF-36:total score of body health (76.4 ± 17.3) scores vs.(56.3 ± 16.8) scores,physiologic function (75.3 ± 18.1) scores vs.(52.4 ± 19.2) scores,physiologic functional authority (75.6 ± 16.5) scores vs.(48.5 ± 20.3) scores,body pain (77.2 ± 15.4) scores vs.(58.7 ± 16.6) scores,total health state (73.6 ± 17.8) scores vs.(50.6 ± 14.7)scores,total score of mental status (77.5 ± 15.3) scores vs.(55.3 ± 17.3) scores,vitality (69.3 ± 18.1)scores vs.(43.2 ± 17.4) scores,society function (70.3 ± 17.5) scores vs.(41.3 ± 14.2)scores,affection functional authority (80.2 ± 17.4)scores vs.(63.5 ± 14.3)scores,mental health (77.6 ± 18.4) scores vs.(55.6 ± 20.1) scores,health change (76.3 ± 17.4) scores vs.(53.4 ± 16.6) scores;SAQ:body limitation of activity (78.46 ± 12.21) scores vs.(35.34 ± 15.33)scores,angina stable state (74.23 ± 8.53) scores vs.(30.12 ± 5.38) scores,angina episode state (72.34 ± 10.33) scores vs.(27.33 ± 9.12) scores,satisfaction degree of treatment (76.42 ± 12.13)scores vs.(30.56 ± 15.57) scores,knowledge of diseases (74.22 ± 9.35)scores vs.(37.25 ± 20.32) scores] (P ＜ 0.05).The results of multiple linear regression equation showed that the older,more severe vascular lesions,and lower total score of body health score before ischemia postconditioning indicated lower total score of body health,and worse quality of life after ischemia postconditioning.Conclusions The quality of life of patients with acute ST segment elevation myocardial infarction after ischemia postconditioning is significantly improved,compared with that before ischemia postconditioning.Advanced age,vascular disease and lower total scores of body health before ischemia postconditioning are independent risk factors of total scores of body health after ischemia postconditioning.

Cis-3, 4-dichloro -a-chloro-cinnamoyl-sec.-butylamine (8601), a new compound of cinnamamides, has potent antagonistic effect on experimental epilepsy. 8601 is significantly more effective against MES in mice than Antiepilepsirine. It has also been found effective against convulsion induced by icv. injection of sodium glu-tamate and zinc sulfate.The mechanisms of anti-MES of 8601 is related to content of 5 HT in the whole brain of mice. Increased cerebral 5 HT with L-tyrosine potentiated the effect of anti-MES of 8601,while the opposite was obtained using reserpine or pCPA which decreased the concentration of cerebral 5 HT. The increase of cerebral 5 HT is correlated with the effect of anti-MES of 8601 with a correlation coefficient of 0.926 ( P

AIM: To understand the relationship between pentanucleotide repeat(PNR) polymorphism of the apolipoprotein(a) gene and lipoprotein natures of normal Han population. METHODS: The serum levels of TG, TC, LDL-C,HDL-C, apo AI, apo B and Lp(a) were measured and the polymorphism of the apo(a) PNR was studied by using PCR-SSCP in 153 random normal individuals in Hubei Han population respectively. RESULTS: The relative frequencies of apo(a) PNR allele were significantly different from western population. The apo(a) gene which copy number of PNR is 5 was associated with high Lp(a) levels. No marked differences in the levels of TG, TC,LDL-C, HDL-C, apo AI and apo B were found among the various genotype groups of apo(a) PNR in Hubei Han. CONCLUSION: The data of lipids and PNR polymorphism of the apo(a) gene from healthy Hubei Han were obtained. The apo(a) allele with 5(TTTTA)-repeats may be related to high serum Lp(a) levels in the Hubei Han population.

Objective:To investigate the clinicopathological features and differential diagnosis of 2 patients with renal epithelioid angiomyolipoma (AML), representing 5.4 % of a series of 37 patients undergoing biopsy for renal tumors. Methods:The histopathological, immunohistochemical and clinical characteristics of renal epithelioid angiomyolipoma were studied by immunohistochemical stain for melanoma marker (HMB45), (Pan)melanoma marker Ab-1,cytokeratin (CK), smooth muscle actin (SMA), epithelial membrane antigen (EMA),vimentin (Vim), p53, proliferating cell nuclear antigen(PCNA), Ki67 antigen. Results:Two patients,aged 31 and 39,were alive for 8 and 10 months,respectively.Microscopically, both tumors were mainly made up of diffuse sheets of epithelioid cells and scattered thick-walled blood vessels, necrosis was account for up to 30% of the mass. The epithelioid cells had huge, extremely pleomorphic nuclei with abundant eosinophilic cytoplasm. Scattered tumor giant cells with prominent nuclei were also seen. The epithelioid AML regions of these tumors were immunoreactive for HMB45, (Pan)melanoma marker Ab-1, SMA, Vim and PCNA. Neither atypical epithelioid cells nor typical AML cells were immunoreactive for cytokeratin (CK) and epithelial membrane antigen (EMA).Conclusion: The results of this study suggested that the renal epithelioid AML was a mild malignant tumor before distant metastases. The differential diagnosis between renal malignant AML and sarcomatoid renal cell carcinoma was established by immunohistochemical findings.

Objective: To investigate the level of arsenic exposure in rural drinking water and to assess the health risk caused by exposure to arsenic in Tongzhou District, Beijing Municipality in 2019, so as to provide insights into improving the quality of rural drinking water. Methods: Water samples were collected from self-provided wells in 196 villages of 7 townships in Tongzhou District from April to June, 2019, and the arsenic levels were measured in drinking water according to Standard examination methods for drinking water-Metal parameters (GB/T 5750.6-2006). The carcinogenic and non-carcinogenic risks of arsenic were evaluated in drinking water using the environmental risk assessment model recommended by the United States Environmental Protection Agency (EPA). Results: Totally 520 water samples were collected, and the median arsenic concentration was 0.001 2-0.050 0 mg/L. There were 67 water samples with arsenic levels exceeding the defined standard level (12.88%), and the proportions of arsenic levels exceeding the defined standard level were 57.69%, 17.24%, 12.20%, 6.52% and 1.31% in Songzhuang, Huoxian, Lucheng, Zhangjiawan and Yongdedian townships, and the arsenic levels did not exceed the defined standard level in Majuqiao or Taihu townships. The carcinogenic risk of arsenic was 3.135 7×10-4/a in drinking water, which exceeded the maximum acceptable risk, and the carcinogenic risk of arsenic all exceeded the maximum acceptable risk, with the highest value seen in Songzhuang Township (9.648 2×10-4/a). A high carcinogenic risk of arsenic was seen in men at ages of 60 to 80 years (3.012 8×10-4/a) and in women at ages of 80 years and older (2.949 0×10-4/a). The non-carcinogenic risk of arsenic was 0.696 8 in drinking water, indicating a low risk, and were 1.009 5 and 2.144 1 in Huoxian and Songzhuang townships, indicating a high risk. In addition, a high non-carcinogenic risk of arsenic was seen in men at ages of 60 to 80 years (0.669 5) and in women at ages of 80 years and older (0.655 3). Conclusion There was a high proportion of arsenic levels exceeding the defined standard level in rural drinking water in Tongzhou District, 2019, and there was a health risk, notably with the highest carcinogenic risk seen in residents at ages of 60 years and older. Effective interventions are needed to reduce arsenic levels in drinking water.

Objective To evaluate the plasma amino acid level alteration and determine amino acid loss in patients with abdominal inflammation and acute renal failure during continuous veno-venous hemofiltration (CVVH). Methods Ten patients with abdominal infection and acute renal failure were admitted to the Nanjing General Hospital of Nanjing Military Command of PLA from September 2008 to September 2009. CVVH was performed with AV600S polysulfone hemofilter for 24 hours. Samples of plasma amino acid were obtained before,at 12 and 24 hours after the beginning of CVVH. High pressure liquid chromatography was used to detect amino acid concentrations in plasma and replacement fluid. All data were analyzed using t test or Wilcoxon rank sum test. Results Of the ten patients, three died of septic shock and three died of multi-organ dysfunction syndrome.The level of plasma amino acids decreased significantly after CVVH, and the levels of histidine, isoleucine, cysteine and glutamine decreased from (22.1 ±10.3), (20.0 ±7.6), (10.3±4.7), (122.3 ±72.2)μmol/L to (5.6 ±3.4), ( 6.4 ± 2.5 ), ( 2.9 ± 2.4 ), (42.5 ± 33.6) μ mol/L. The total plasma amino acid levels significantly reduced by 52% at 12 hours after the beginning of CVVH and by 59% at 24 hours after the beginning of CVVH.The mean amino acid loss was (9631± 1089)mg/d. The mean losses of essential and non-essential amino acids were ( 5072 ± 618 ) mg/d and ( 3747 ± 654 ) mg/d, respectively, with a significant difference ( t = 4. 52,P ＜0.05 ). There was a positive correlation between individual amino acid loss and the plasma concentrations of respective amino acids at 12 hours after the beginning of CVVH ( r = 0. 68, P ＜ 0.05 ). Conclusions Plasma amino acid would be cleared through hemofilter during CVVH in patients with abdominal inflammation and acuterenal failure. As a result, it is necessary to take account of the ultrafiltrate amino acid loss when setting nutritional schedule, especially increasing the non-essential amino acid content of total parenteral nutrition.

Objective:To study the reliability and validity of schizophrenia quality of life scale (SQLS)in China.Method:Eighty-eight patients with schizophrenia were assessed with the SQLS.Results:The Cronbach's alpha were in 0.58-0.93.The split-half reliability coefficient were in 0.91-0.94.The test-retest reliability coefficient were in 0.57-0.76.The content validity and construct validity reached psychometrically acceptable level.Conclusion:The SQLS is a simple and reliable scale.

Objective To ascertain the utility and difference of sonography with echo-tracking (ET) technique and pulse-Doppler to assess vascular stiffness in rats with hypercholesterolemia and atherosclerosis.Methods Sonography associated with ET technique and pulse-Doppler were used to measure stiffness parameter (β),arterial compliance (AC),distensibility coefficient (DC),one-point pulse wave velocity (PWVβ),resistence index(RI),peak systolic velocity(PSV),end-diastolic velocity(EDV) and EDV/PSV of the aorta in cholesterol-fed SD rats (group T1,n =10,for 4 weeks;group T2,n =10,for 12 weeks) and normal control rats(group C1,n =10;group C2,n =10).All parameters and blood biochemical markers[total cholesterol(TC),triglycerides(TG),low-density lipoprotein cholesterol(LDL-CH) and highdensity lipoprotein cholesterol (HDL-CH)] among groups were analyzed with ANOVE factor analysis.Correlation was analyzed with Pearson analysis.Light microscopic evaluation were used to demonstrate atherosclerotic changes in the aorta.Results The PWVβ value and PSV of the aorta between group T1 and T2 were significantly different (P =0.001,P ＜0.05).The β,PWVβ values of the aorta in group T1 and T2 were significantly higher than those of group C1 and C2 (P ＜0.05).AC and DC values of the aorta in group T1 and T2 were significantly lower than those of group C1 and C2 (P ＜0.05).Correlation analysis showsed that RI was positively correlated with systolic pressure(P ＜0.05).All parameters had correlated with each other among β,PWVβ,AC,DC,TG,TC,systolic pressure and diastolic pressure.DC and AC were negatively correlated with β and PWVβ,also DC was negatively correlated with TG.Light microscopy confirmed morphologic typical changes of aortic atherosclerosis in group T1 and T2.Conclusions Sonography with the ET method compared with pulse-Doppler is much more sensitive and it can be used to evaluate tissue elastic changes in arterial walls associated with atherosclerosis and hypercholesterolemia.PSV can reflect atherosclerosis of rat's abdominal aorta well,but pulse-Doppler is limited in the diagnosis of earlier atherosclerosis period.