Adult ; Aortic Rupture ; pathology ; Death, Sudden, Cardiac ; etiology ; Heart Ventricles ; pathology ; Humans ; Male

Objective To analyze the etiology of duodenal trauma and improve the result of its diagnosis and treatment. Methods The data of 28 cases with duodenal trauma during March 1968 to September 2007 was analyzed retrospectively. Results Twenty-two (78.6%) patients had blunt injuries. The rate of duodenal trauma and associated injuries was 21.4%(6/28)and 89.3% (25/28) respectively. The easiest injury part on the deseending part constituting was 46.4% (13/28) ,the secondary on the horizontal part constituting was 21.4% (6/28).The postoperative complication rate was 28.6% (8/28), the mortality rate was 3.6% (1/28), and the cure rate was 96.4% (27/28). Conclusions The incidence of blunt injuries is high compared with other kinds of duodenal trauma in China. It suggests that the early diagnosis, exploration proper surgical management,and intensive postoperative care are emphasized to reduce the mortality and complication rate.

Child ; China ; Humans ; Paramyxoviridae Infections ; physiopathology ; Respiratory Tract Infections ; physiopathology ; virology

DEDD is a member of the death-effector domain protein family. DEDD inhibits the Smad3 mediated transcriptional activity and participates in the regulation of apoptosis. In this study, how the death-effector domain of DEDD participates in the regulation of Smad3 activity and apoptosis has been further investigated. Immunoblotting, immunofluorescence and immunoprecipitation had been used to detect the effects of the full length DEDD and its two truncated mutants, N-DEDD and C-DEDD on Smad3 subcellular distribution, phosphorylation, and interaction between Smad4. The effects of the full length DEDD and its two truncated mutants on cell apoptosis and proliferation had also been explored by flow cytometry and MTT assay. It showed that DEDD and N-DEDD inhibit TGF-beta1 induced Smad3 nuclear translocation and the formation of Smad3-Samd4 complex. DEDD and its two mutants can induce cell apoptosis and inhibit cell proliferation. These results suggested that DEDD inhibits the activity of Smad3 through its death-effector domain. Both the two truncated mutants of DEDD participate in the regulation of apoptosis and cell proliferation.

Objective: To examine the associations of occupational stress and well-being with depressive symptoms among couriers. Methods: Four cities of Hangzhou, Ningbo, Jiaxing and Taizhou were sampled from Zhejiang Province according to the economic development level, and couriers were randomly sampled from 40 service stations assigned by 25 mainstream express transportation corporations in these four cities. Participants' occupational stress, well-being and depressive symptoms were evaluated using the Core Occupational Stress Scale (COSS), the World Health Organisation-Five Well-Being Index (WHO-5) and Chinese version of Patient Health Questionnaire-9 (PHQ-9). In addition, the associations of participants' occupational stress and well-being with depressive symptoms were examined using hierarchical linear regression analysis. Results: A total of 1 302 questionnaires were allocated, and 1 136 valid questionnaires were recovered, with an effective recovery rate of 87.25%. The participants included 839 males (73.86%), and 297 females (26.14%), and had a mean age of (33.34±8.17) years and a mean service length of (8.95±7.82) years. The detection rates of occupational stress, low well-being and depressive symptoms were 32.48%, 50.79%, and 31.87% among participants, respectively. After adjustment for educational level, income, marital status and smoking, hierarchical linear regression analysis showed that well-being (β=0.171), social support (β=-0.298), organization and reward (β=0.200), demand and effort dimensions of COSS (β=0.284) were statistically correlated with depressive symptoms (all P<0.001). Conclusion Occupational stress and low well-being may increase the risk of depressive symptoms among couriers.

Objective: To investigate the status of occupational health examination institutions in Zhejiang Province, so as to provide suggestions for quality control of occupational health examination institutions. Methods: The 312 occupational health examination institutions in Zhejiang Province that have completed filing before September 30, 2023 were selected. The comprehensive capability, service quality, technical capability, and information reporting status were surveyed and evaluated through on-site inspection and skill assessment. Results: There were 161 public hospitals (51.60%), 147 private organizations (47.12%), and 4 centers for disease control and prevention (CDCs)/ occupational disease prevention and control institutes (1.28%). The pass rates of comprehensive capability, service quality, technical capability and information reporting were 90.02%, 69.89%, 84.07% and 86.78%, respectively. Among the indicators of comprehensive capability, the compliance rate for staffing was the highest at 95.06%, while the qualification rate of quality control in occupational health examinations was the lowest at 84.83%. Among the indicators of service quality, the compliance rate of the physical examination report format was the highest at 95.83%, while the accuracy rate of the audiometry examination was the lowest at 76.60%. In terms of technical capabilities, the qualification rates for blood lead testing, pneumoconiosis reading, and audiogram diagnostic ability were 87.92%, 89.42% and 75.34%, respectively. In terms of information reporting, the qualification rates for reporting completeness, reporting timeliness, suspected occupational disease reporting timeliness, and reporting accuracy were 89.10%, 81.09%, 96.47% and 80.45%, respectively. Among the three types of institutions, private institutions had the lowest average qualification rates for comprehensive capability, service quality, and technical capability, which were 89.83%, 69.06% and 80.00%, respectively. Conclusions Public hospitals and private organizations were the main types of occupational health examination institutions in Zhejiang Province. However, there were deficiencies in quality control, audiogram examination and diagnosis, and the accuracy of information reporting among occupational health examination institutions.

ObjectiveTo investigate the iodine nutritional status of pregnant women,newborn heel blood thyroid stimulating hormone(TSH) level and their relationship with urinary iodine(UI) level during pregnancy in Zhoupu and Kangqiao districts of Pudong New Area of Shanghai.Methods A total of 993 urinary samples(the first,second and third trimesters of pregnancy were 200 people,respectively),breast feeding(193 people) and non-pregnant women (200 people) in Zhoupu and Kangqiao districts of Pudong New area were collected from Apr 2009 to Dec 2010.Two hundred copies of neonatal heel blood samples were collected.Median of UI was measured by arsenic-cerium catalysis.TSH in neonatal heel blood was analyzed 72 h after birth by time resolved fluoroisnmunoassay(TRFIA).ResultsMedian UI of all pregnant women was 161.35 μg/L,and that in third trimesters of pregnancy( 126.35 μg/L) was lower than that of the first,the second,the breast feeding and non-pregnant women (178.80,180.50,167.90,163.40 μg/L,all P＜ 0.05).The percentage of UI level less than 150 μg/L in the third trimester[57.5％(115/200) ] was higher than that of the first[39.0％(78/200) ],the second[39.5％(79/200) ],the breast feeding [ 16.6％ (32/193) ] and non-pregnant women [ 23.0％ (46/200) ],respectively (all P ＜ 0.05).The percentage of UI level higher than 300 μg/L in the first [9.0％(18/200)],the second[8.0％(16/200) ] and the third trimester [ 5.0％ ( 10/200 ) ] of pregnancy was lower than that of the breast feeding [ 20.2％ (39/193) ] and nonpregnant [20.5％(41/200) ] women,respectively(all P ＜ 0.05).The level of neonatal heel blood TSH was(2.92 ± 1.83)mU/L,the range was 0.01 - 9.76 mU/L,11.0％(22/200) of the neonates heel blood TSH level(5 mU/L)exceeded the ratio of World Health Organization (WHO) standard ( ＜ 3％ ) suitable for iodine nutrition.Conclusions The overall level of iodine nutrition among pregnant women in Zhoupu and Kangqiao districts of Pudong New Area of Shanghai is in the appropriate range,but the pregnant women in the third trimester is in mild iodine deficiencies,and the neonates in these districts may be prone to iodine deficiency.Monitoring of iodine nutrition of pregnant women should be strengthened and iodine supplementation should be done scientifically.

OBJECTIVE Transient outward potassium current (Ito) plays a crucial role in cardiac phase 1 repolarization and the channels are assembled by pore-forming α-subunits (Kv4.2 or Kv4.3) and auxiliary subunits (KChIP2 and DPP6). Previous studies have found that the compound NS5806 increases Ito in canine ventricular cardiomyocytes through slowing current decay. Here, we reported that NS5806 produced an acute inhibitory action on Ito in mouse ventricular cardiomyocytes and human induced pluripotent stem cell-derived cardiomyocytes (hiPS-CM). METHODS Whole-cell patch-clamp was used to record Ito in native myocytes and in HEK cells expressing cloned Kv4.x/KChIP2/DPP6 channels; Western-blot detected the channel protein expression. RESULTS In isolated mouse ventricular cardiomyocytes, NS5806 (0.1-30 μmol·L-1) inhibited Ito in a concentration-dependent manner with IC50 of 6.6±1.9 μmol·L-1. The current decay was significantly accelerated with a time constant from 53.8±5.5 to 41.8±3.0 ms at +60 mV (P<0.01). Similarly, NS5806 concentration-dependently reduced the Ito peak current amplitude with an acceleration of current decay. In addition, NS5806 increased IKv4.2/KChIP2 and delayed current decay, but decreased IKv4.2/KChIP2/DPP6 with the acceleration of current decay. The inhibitory action on the current was more potent if DPP6 expression level was increased from Kv4.2/KChIP2/DPP61:1:1 to 1:1:3. Western-blot showed a higher expression of DPP6 protein in mouse heart and in hiPS- CM compared to canine heart. Moreover, specific knock- down DPP6 expression by siRNA antagonized the inhibitory action of NS5806 in hiPS-CM. Our results pointed to an important role of DPP6 subunit in the regulation of NS5806 on the channel. By using molecular docking simulation, five interaction sites with high possibility between KChIP2 and DPP6 were identified. Mutations of those sites changed the inhibitory action of NS58056 into excitatory effect on the current with the delay of current decay. CONCLUSION NS5806 significantly inhibits Ito by accelerating current decay in mouse cardiomyocytes and hiPS-CM. The effect depends on the interaction between DPP6 and KChIP2 subunits.

Objective To study the expression of insulin receptor(INSR)in endometrial cell line Ishikawa3-H-12,and the effects of insulin on proliferation,cell cycle distribution and apoptosis of Ishikawa3-H-12 cells.Methods Immunocytochemistry and RT-PCR methods were used to investigate the expression of INSR in Ishikawa3-H-12 cells.The effects of insulin at different concentrations and different time on proliferation,apoptosis and cell cycle distribution of endometrial carcinoma cells were observed by methyl thiazolyl tetrazolium(MTT)assay and fluorescence-activated cell sorting technique.Results(1) We demonstrated the expression of INSR in Ishikawa3-H-12 cell line.(2)Incubation with insulin stimulated a dose- and time-dependent proliferation response in Ishikawa3-H-12 ceils with the peak response occurring at 48 hours with 1?10~(-4)mol/L insulin incubation[proliferative rate:(340.2?15.9)%,vs control (100%),P