Humans ; Pneumonia ; Pulmonary Fibrosis ; T-Lymphocytes, Regulatory ; Th17 Cells

Humans ; Laminin ; Pulmonary Fibrosis

Humans ; MicroRNAs ; therapeutic use ; Molecular Targeted Therapy

Objective To survey on satisfaction degree of preventive medicine undergraduates on tutorial system and to improve the effects of tutorial system.Methods Totally 73 students of preventive medicine,who would graduate in 2012,were asked to fill the questionnaires by themselves.Main contents of questionnaires include effects,satisfaction score,expectations and reality benefits,requirements for the tutors and problems of the tutorial system.Chi-square was used to test the differences between expectations and reality benefits and the significance level was set as P ＜ 0.05.Results More than half of the students thought that the effect of tutorial system was general while 43.8％students thought good and excellent.Percentages of satisfaction score over 50,over 80 and over 90 were 75.3％,41.1％ and 12.3％,respectively.Statistical analysis shown that the real benefits from research activities were more than expectation (P ＜ 0.001),while the real benefits from tutor's academic encouragement,job guidance and life values were lower than expectation (P =0.026,P =0.003,P =0.010).Students expected to have more opportunities with the professors in the future.However,there were 17.8％ students hardly attended the activities of tutorial system,in which lack of understanding of tutorial system was the main reason and without enough time was another reason.Conclusions Students basically satisfies with tutorial system and the satisfaction degree needs to be improved.Roles of tutorial system should be fully strengthened by the management department,tutors and students.

Europe ; Humans ; Occupational Medicine ; education ; Students ; United States

Objective To investigate the correlation between Helicobacter pylori (HP) infection-associated gastritis and the ap-optotic genes in gastric mucosa .Methods Forty-five patients with chronic gastritis were registrated in our study from November 2013 to December 2014 .HP infection status in the patients was detected by using urease test and 13C-urea breath test .The degree of gastritis in the gastric mucosa with HP infection was confirmed via histopathology .qRT-PCR was used to measure the mRNA ex-pressions of Bax ,Bak and Bcl-2 in the gastric mucosa with HP infection and matched normal gastric mucosa .Person analysis was used to assess the correlation between the HP infection-associated gastritis and the mRNA expressions of Bax ,Bak and Bcl-2 in the gastric mucosa .Results Forty-five patients with HP infection in antrum and 45 patients (100% ) with chronic antrum gastritis were identified ,including 28 patients (62 .2% ) with light gastritis ,16 patients (35 .6% ) with moderate gastritis ,1 patient (2 .0% ) with severe gastritis .9 patients (20 .0% )with metaplasia ,5 patients(11 .1% ) with low grade intraepithelial neoplasms .The urease tests were negative in the gastric body of 45 patients ,6 patients (13 .3% )were mild chronic gastritis in the body ;Patient with meta-plasia and intrapithelial gastritis was not found .The Bax expression in the HP-infected gastric mucosa was markedly increased when compared with the normal gastric mucosa (P< 0 .01) ,and positively correlated with the degree of gastritis (P< 0 .01) , whereas the expressions of Bak and Bcl-2 have no significantly deferences bttween two groups(P>0 .05) .Conclusion HP infec-tion-associated gastritis positively correlated with the expressions of apoptotic genes in gastric mucosa ,suggesting that HP infection might result in increasing the Bax expression and further enhancing the cell apoptosis .

Objective To evaluate the curative effect and security of mechanical thrombectomy with SolitaireAB stent system in acute superior mesenteric artery embolism(SMAE).Methods The clinical data of 5 cases who had undergone mechanical thrombectomy with SolitaireAB stent system under digital subtraction angiography (DSA) were analyzed retrospectively.Results A successful thrombus removal of superior mesenteric arterial by SolitaireAB stent system was observed in the whole 5 patients.The patients had recovered well after operation and no complications such as arterial dissection,perforation and hemorrhage or intestinal ischemia occurred.Conclusion The arterial mechanical thrombectomy with SolitaireAB stent system are characterized with high rate of recanalization,fine security,minimal invasion and less complications in patients with acute superior mesenteric arterial embolism.

Practical ability training is one of the core tasks during the education for master of public health (MPH).We got a deeper understanding of practical ability cultivation situation for MPH in our school and got a more accurate recognition of the existed problems through conducting questionnaire for three grades MPH of professional degree and related tutors.We analyzed the advantages and disadvantages of the existing mode and reflected on curriculum design,teaching method reform and practical ability training reform,etc based on the results of the questionnaire and years of experiences.

OBJECTIVETo investigate the effects of carbon disulfide (CS(2)) inhalation on the lipid levels of ApoE knockout gene mice and C57BL/6J mice.

METHODSFifty-one male ApoE gene knockout mice were randomly divided into four groups: CS(2)-exposed normal diet group, CS(2)-unexposed normal diet group, CS(2)-exposed high-fat diet group, and CS(2)-unexposed high-fat diet group. Fifty male C57BL/6J mice were divided into four groups in the same way. The exposed groups received 1000 mg/m3 CS(2) by static inhalation (5h/d, 5d/w) for four weeks. The weight of each mouse was determined and recorded once a week. On the 14th day of exposure, six mice in each group were randomly selected to measure serum total cholesterol (TC) levels. On the 28th day of exposure, the serum levels of TC and low-density lipoprotein (LDL) in the remaining mice were measured.

RESULTSThe mean weight gain of exposed groups was less than that of the unexposed groups. On the 14th and 28th days of experiment, the TC levels of the CS2-exposed high-fat diet group were significantly higher than those of the CS(2)-unexposed high-fat diet group among ApoE knockout gene mice (P < 0.01 for both). On the 14th day of experiment, the TC levels of the CS(2)-unexposed high-fat diet group were significantly higher than those of the CS(2)-unexposed normal-diet group among C57BL/6J mice group (P < 0.05). On the 28th day of experiment, the LDL levels of the CS(2)-exposed high-fat diet group were significantly higher than those of the CS(2)-unexposed high-fat diet group among ApoE knockout gene mice (P = 0.003).

CONCLUSIONCS(2) exposure, high-fat diet, and ApoE gene knockout can elevate blood lipids in mice, thus increasing the risk of atherosclerosis.

Administration, Inhalation ; Animals ; Apolipoproteins E ; genetics ; Atherosclerosis ; Body Weight ; Carbon Disulfide ; toxicity ; Diet, High-Fat ; adverse effects ; Gene Knockout Techniques ; Lipid Metabolism ; drug effects ; Lipids ; blood ; Lipoproteins, LDL ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout

To analyze the difficulty, distinction and result of the first national public health practice skills competition among college students, it showed the general situation of this competition, and discussed the present situation, problems and countermeasures of skills training for students majoring in preventive medicine. Based on such competition, educators can promote teaching reform and post competency training.