Benzene ; toxicity ; Humans ; Male ; Middle Aged ; Occupational Exposure ; Thrombocytopenia ; chemically induced

ObjectiveTo explore the application value of two-dimensional ultrasonic measurement of fetal left and right lung area, left and right pulmonary longitudinal diameter, left and right lung volume and total lung volume in evaluation of fetal lung development.MethodsIn 489 cases of normal singleton pregnancy, two-dimensional ultrasound scanning were conducted at 12-40 weeks. The left and right lung area was traced in the four chamber view using Trace method. The distances of left diaphragmatic dome to left lung apex and the right diaphragmatic dome to right lung apex were measured respectively on the left and right fetal lung parasagittal planes. Then calculation of left and right lung volume and total lung volume was carried out.ResultsSpearman correlation coefficient of gestational age and left and right lung area, left and right pulmonary longitudinal diameter, left lung volume and total lung volume were 0.929, 0.923, 0.923, 0.917, 0.946, 0.943, 0.951, and a positive correlation, with statistical significance (P<0.05). At 12-40 weeks, fetal left and right lung area, left and right pulmonary longitudinal diameter, left and right lung volume and total lung volume increased with gestational age and fetal growth. Pulmonary area increased faster before 26 weeks than that after 26 weeks. Pulmonary longitudinal diameter and lung volume grew at a constant rate throughout pregnancy, but the growth rate of pulmonary longitudinal diameter was slightly faster than that of lung volume. The fifth, twenty-fifth, fiftieth, seventy-fifth, ninety-fifth percentile of fetal left and right lung volume and total lung volume at 12-40 weeks were obtained. ConclusionsFetal left and right lung area, left and right pulmonary longitudinal diameter, left and right lung volume and total lung volume were positively correlated with gestational age between 12 and 40 week. The normal values of lung volume and total lung volume provide a reference index for prenatal diagnosis of fetal pulmonary hypoplasia. The fetal four chamber view and fetal left parasagittal section was easy to obtain, and may serve as a new conventional method in evaluating fetal lung developments.

By analyzing the status of Cardiovascular Surgery advanced students,we discussed the characteristics and problems of clinical teaching for advanced students of Cardiovascular Surgery.Strategies of clinical teaching for advanced students of cardiovascular surgery are explored to improve the quality of clinical teaching.

Objective To explore the effect of intrauterin hypoxia on proliferation of neural stem cells(NSCs)and memory and learning capacity of juvenile rats.Methods Conceiving female SD rats(n=20)were divided randomly into 2 groups:control group(n=10)and hypoxia group(n=10).The rats of hypoxia group were put into 3 gases incubator to make the injured brain newborn rats model,rats of control group were not done so.The juvenile rats were taken to do the experiment of water maze after they were born in 30 d,then killed when the experiment was over,the brains of the rats were taken,immobilization,paraffin imbedding,slicing(hippocampus),common immunohistochemistry staining were used to detect the Nestin positive NSCs.Results Optical density of Nestin positive cells in hippocampus dentation of hypoxia group(0.16?0.10)was higher than that of control group(0.15?0.09)(t=3.24 P

OBJECTIVETo study the association of genetic polymorphism of glutathione S-transferase (GSTM1 and GSTT1) with susceptibility to primary liver cancer in Chinese.

METHODSLiterature search of the PubMed, Chinese National Knowledge Infrastructure, and ISI Web of Science databases identified 25 relevant case-control studies of glutathione S-transferase genetic polymorphisms and primary liver cancer, representing a total of 2788 cases and 5548 controls. The extracted data was applied to the RevMan v4.2 software for meta-analysis. Data with significant heterogeneity was assessed by the fixed effects model, otherwise a random effects model was applied. Pooled odds ratios (ORs) with 95% confidence intervals (CIs) were calculated.

RESULTSThe correlation between the GSTM1 and GSTT1 null genotypes and susceptibility to primary liver cancer showed statistical significance (cases: P = 1.8 * 10(-11) and controls: P = 4.6 * 10(-11); Pearson's Chi-squared test). The OR value for GSTM1 was 1.67 (95% CI: 1.39-2.01) and for GSTT1 was 1.59 (95% CI: 1.26-1.96). In the GSTM1-GSTT1 interaction analysis, both GSTM1 and GSTT1 were null genotypes with OR = 3.34 (95% CI: 2.23-5.00), which was higher than the null genotype for either one of them alone and which indicated higher relative susceptibility. Compared with individuals for whom both GSTM1 and GSTT1 were non-null genotypes, the presence of at least one null genotype showed higher risk of primary liver cancer.

CONCLUSIONThe null genotypes of glutathione S-transferase genetic polymorphisms GSTM1 and GSTT1 are risk factors for primary liver cancer respectively, and their associated risk is increased when both are present.

Asian Continental Ancestry Group ; genetics ; Genetic Predisposition to Disease ; Genotype ; Glutathione Transferase ; genetics ; Humans ; Liver Neoplasms ; genetics ; Polymorphism, Genetic ; Polymorphism, Single Nucleotide ; Risk Factors

To further explore the clinical effect of massage therapy on navel,the related ancient literatures were arranged and analyzed,and several methods in ancient clinical were introduced, including stroking navel, rubbing navel, pushing navel, tapping navel and puffing navel. In addition, the theoretical basis of massage therapy on navel were discussed. The results revealed ancient literatures offered abundant theoretical basis to modern clinical practice, and there were evidences of treating gastroenteric and gynecological diseases with this therapy. Comprehensively, through the study of ancient literatures and modern research, therapy of massage on navel is believed to be promising and will gain popularity in the future.
China ; History, Ancient ; Humans ; Massage ; history ; Medicine in Literature ; Umbilicus ; physiopathology

Background The filtering surgery is the main method of treating glaucoma.Fibrosis of filtering bleb is a key cause of failure of operation.The study about application of anti-scaring drug in filtering surgery is a hotspot.Objective Present study was to investigate the anti-scaring effect of paclitaxel aher trabeculectomy.Methods Thirty-two adult clean domestic rabbits underwent standardized trabeculectomy and randomly divided into 4 groups.Normal saline solution was used beneath the scleral flap during trabeculectomy for 3 minutes in 16 eyes of 8 rabbits as controls.0.3 g/L mitomycin C,0.2 g/L paclitaxel or 0.3 g/L paclitaxel was administered at the same way respectively in other 3 groups.Intraocular pressure (IOP) was measured,and eye numbers with function blebs were compared among 4 groups at the 4th,7th,14th and 28th day after surgery.The opening of filtration tunnel and the number of inflammatory cells were observed by hematoxylin and eosin staining,and proliferation of new collagen fibers was evaluated by Masson trichrome method.This study complied with the Regulations for the Administration of Affair Concerning Experimental Animals by State Science and Technology Commission(version 1988). Results No significant differences were found in the change of lOP among 4 groups before operation(F=0.54,P=0.83)and the 4th day aher operation(F=0.57,P=0.87).The IOP value was statistically lower in 0.3 g/L mitomycin C group,0.2 g/L paclitaxel group and 0.3 s/L paelitaxel group than the normal saline solution group(P＜0.05)with the lowest value in 0.3 s/L paclitaxel group in 7,14,28 days after operation(P＜0.05).Functional filtering bleb was seen in all the rabbit eyes in the 4th day after operation.In 7,14,28 days after operation,the number of eyes with functional bleb wag evidently more in 0.3 g/L mitomycin C group,0.2 g/L paclitaxel group and 0.3 g/L paclitaxel group compared with normal saline group(P＜0.05).The histological examination showed that the infiltration of inflammatory cells in filtering tunnel was much more obvious in normal saline solution group than the other groups with the most mild response in 0.3 g/L paclitaxel group.Masson trichrome revealed that proliferation of new collagen fibers in 0.3 g/L paclitaxel group was significantly decreased in comparison with those in other three groups at the 4th,7th,14th and 28th day after surgery(all P＜0.05). Conclusion Paclitaxel can inhibit the inflammatory response and collagen fibrosis and therefore open the filtering tunnel after it be used topically during the glaucoma trabeculectomy.

Objective To investigate the clinical value of double contrast-enhanced ultrasonography (DCUS) in the macroscopic classification of rectal carcinoma. Methods Seventy-one patients with rectal carcinoma were examined by ultrasound after intrarectal infusion and intravenous bolus injection of SonoVue preoperatively. And three types were divided according to the shape of the tumor:protruding type, ulcerative type and invasive type. After surgery, DCUS and perfusion contrast-enhanced ultrasonography (PCUS) were compared with final pathologic results respectively, and the relationship between general tumor type and TN staging were analyzed.Results The accuracy of DCUS [88.7%(63/71) ] in macroscopic classification of rectal carcinoma was significantly higher than that of PCUS [73.2%(52/71) ](χ2=5.534,P<0.05). For the invasion depth into the intestinal wall, the protruding type was mainly in T1, T2 and T3 stages while ulcerative and invasive type in T2, T3 and T4 stages (χ2=12.322, P<0.05 ). For the stage of lymph node, the protruding type was mainly in N0 and N1 while ulcerative and invasive type in N1 and N2(χ2=6.733,P < 0.05 ). Conclusions DCUS, with its high accuracy, is a new valuable method for macroscopic classification of rectal carcinoma.In the aspect of intestinal wall invasion and the lymph node, protruding type is less severe than ulcerative type and invasive type.

Objective To learn the prevalence and trends of Brucella disease in Ningxia, in order to provide scientific basis for effective control of the disease. Methods Data of Brucella cases reported through city network from 2004 to 2009 in Yinchuan city, Shizuishan city, Wuzhong city, Guyuan city and Zhongwei city of Ningxia were reviewed and retrospectively analyzed. The data included demographic characteristics, treatment conditions and medical history so on related information. Analytical indicators include reported incidence;with patients' gender, age, regional distribution, urban and rural distribution;become chronic and associated factors;distribution of the cases reporting unit and so on. Results From 2004 to 2009, Ningxia had reported 349 cases of Brucellosis, no deaths, the annual incidence rates reported were 0.017/10 million, 0.543/10 million, 0.151/101 (295/54);The proportion of 34- to 40-year-old age group was higher than other age groups(27.5%, 96/349);Occupational distribution of patients was mainly farmers and herdsmen(70.2% ,245/349), in regional distribution of the patients, the highest percentage was Wuzhong city(61.9%,216/349), followed by Yinchuan city(22.9%,80/349);The proportion of patients in rural areas(97.4% ,340/349) was higher than urban(2.6% ,9/349);the proportion of patients converted to chronic was 11.2% (39/349). With age, the chance of patients converted to chronic was in a decreasing trend(odds ratio was 0.966);cases reported by Centre for Disease Control and Prevention accounted for 74.8%(261/349), by hospital accounted for 25.2%(88/349). Conclusions The reported incidence of Brucellosis in Ningxia is in a rapid upward trend year by year, the patients is mainly young men, the rate of converted to chronic is higher and the ability of hospital in founding and reporting of the cases is weaker.Comprehensive measures should be taken to increase funding, strengthen monitoring, and continuously improve the level of awareness and diagnosis of medical personnel for further strengthen the prevention and control of Brucellosis.

The study compared the traditional medical microbiology experimental teaching with a new experimental teaching pattern,with the students majoring in anaesthesia as the research object. The new pattern mainly deals with the cultivation of the students' creativity by reforming and exploring the plan,the content,the method of experimental teaching and the ways of checking the students' work, adding general and designing experiment,and working out the PPT of the experiments.The result shows the new experimental teaching pattern contributes to the cultivation of the students'abilities of performing experiment, the ways of thinking, creativity and comprehensive analysis. It's better than the traditional experimental teaching pattern.A new medical microbiology experimental teaching systerm which is suit to the students majoring in anaesthesia has been established.