Objective To study the interaction of genetic polymorphisms of CYP2E1 and environmental hazard factors in gastric cancer. Methods 1∶1 case-control study was carried out in Nanjing area, using PCR-RFLP technology to determined the genetic polymorphisms of CYP2E1 and epidemiological data about environmental exposure of 121 cases and controls were collected. Interaction indexes (?) were calculated to determine the type of gene-environment interaction. Results After confounding adjusted, the result showed that interaction existed in genetic polymorphisms of CYP2E1 RsaⅠand the family history of digestive system disease, smoking, pickled food, irregular diet habit, interaction indexes (?) value were 1.855, 2.626, 1.736 and 1.714 respectively. A low exposure-gene effect interaction was found in CYP2E1 RsaⅠgenotype and the frequency of pickled food consumed, while a high exposure-gene effect interaction exist in CYP2E1 RsaⅠgenotype and irregular diet habit. Conclusion Genetic and environmental hazard factors co-effect the development of gastric cancer, genetic polymorphisms of CYP2E1 and environmental risk factors show an interaction in gastric cancer.

Objective To determine the association of glutathione-stransferase M1(GSTM1), T1(GSTT1) genetic polymorphisms, smoking and alcohol consumption with the risk of gastric cancer. Methods 1:1 matched case-control study and molecular epidemiology technique were used to analysis the genetic polymorphisms of GSTM1, GSTT1 genotype among 60 cases of gastric cancer patients and sex-and age-matched controls, who were selected from Nanjing Zhongda Hospital and Jiangsu Province Cancer Hospital. Statistical analysis was performed to elucidate interaction of GSTM1. GSTT1 genotype and smoking and alchol consumption in the risk for stomach cancer. Results The frequency of GSTT1 null genotype among cases and controls was 61.67% and 40.00% respectively (?2 =6.08, P

Objective To explore the relationship between insulin resistance (IR) and benign prostatic hyperplasia (BPH) in elderly men. Methods All BPH outpatients in Geriatric department of the second Xiang Ya Hospital in Feb 2008 were recruited in this study. Bioche assays including insulin (FINS), prostate specific antigen (PSA), HbAlc, fasting plasma glucose, 2 hours postprandial blood glucose were performed and HOMA-IR were calculated. The blood pressure, body weight, height and waist circumference were measured, and the body mass index (BMI) was calculated. Prostate volume (PV) was measured by abdominal ultrasound, lower urinary tract symptoms (LUTS) was evaluated by International Prostate Symptom Score (IPSS) and inquired about the history of LUTS in detail. Results (1) HOMA-IR＞ 2.8 was diagnosed as insulin resistance (IR). The patients were divided into two groups: insulin sensitivity (IS) group (n=48) and IR group (n=20). The PV level was higher in IR group than in IS group [(61.1-32. 9) ml vs. (40.4±16.5)ml, P＜0. 05], there were no statistical differences in PSA [(3.3±2.3) μg/L vs. (2.91±1.3) μg/L, P＞0.05], the history of LUTS [(13.4±6.6)years vs. (8.7±6.0)years, P＞0.05], IPSS [(16.42±6.67)scores vs. (13. 29±7.09)scores, P＞0. 05] between the two groups. (2)According to BPH progressivity evaluation provided by MTOPS study (age≥62 years, PSA≥1. 6 μg/L, PV≥31 ml), the patients were divided into two groups: low progressive risk group (n= 30) and high progressive risk group (n= 38). The FINS and HOMA-IR levels were significantly higher in highprogressive risk group than in low progressive risk group (all P＜0. 01). (3)The PV was positively correlated with HOMA-IR level and FINS level (r= 0. 431, 0. 492, P＜0. 01). Conclusions IR exists in majority of elderly BPH patients, the degree of IR and relative high level of FINS are related to the enlargement of PV and the development of BPH.

Systemic lupus erythematosus (SLE) is an archetypical systemic, autoimmune inflammatory disease , of which the mechanism still not unveiled. Studies on epigenetics in SLE have long been the subject of investigation and as part of epigenetics. DNA methylation has been confirmed to play a role in the pathogenesis of SLE. The high autore-activity of CD4~+ T cell from SLE patients is associated with DNA hypomethylation. DNA hypomethylation is crucial to induce SLE - like autoimmune disease in SLE - non - susceptible mice. The reactivation of inactive X chromosome by hypomethylation may lead to high incidence of SLE in women. Drug - induced SLE is also connected with DNA hypomethylation. To understand the role of DNA methylation in the onset of SLE comprehensively, we review the findings reported in the literatures about DNA methylation and SLE.

OBJECTIVE To study the sterilization method for on-wall oxygen humidifying inhalation sets in hospital.METHODS The different parts of on-wall oxygen humidifying inhalation sets were sterilized with Jianzhishu disinfectant and Andofo povidone iodine disinfectant liquid.RESULTS The regular percents for bacterial examination of the different parts of oxygen humidifying inhalation sets after sterilization were higher than before,P

OBJECTIVE To study the sterilization effect of on-wall oxygen humidifying inhalation sets.METHODS The different parts on on-wall oxygen humidifying inhalation sets were sterilized,then compared the result before and after sterilization.RESULTS The regular percents for bacterial examination of humidifying bottle were 17.14% before sterilization,and 100.00% after sterilization,the regular percents for bacterial examination of metallic guilloche were 34.29% before sterilization and 94.29% after sterilization,the regular percents for bacterial examination of vent tube in humidifying bottle were 8.57% before sterilization,and 97.14% after sterilization.The regular percents for bacterial examination of the different parts of oxygen humidifying inhalation sets after sterilization were higher than before it P

Objective To explore the value of afterdischarges monitoring for intraoperative electrical stimulation for brain mapping. Methods 34 patients received cerebral cortex electrical stimulation for brain mapping during operation of brain function area , afterdischarges were monitored simultaneously to determine the upper limit of stimulus intensity. Results 34 cases underwent electrical stimulation successfully , and received surgery without neurologic decline except 2 cases of hypokinesia. Conclusion After discharges monitoring improve the accuracy, reduce the risk of intraoperative cerebral cortex electrical stimulation.

Objective To comparatively evaluate the effects of a recombinant Mtb protein ESAT 6-CFP10 ( rESAT6-CFP10 ) and a purified protein derivative ( PPD ) as skin test reagents in guinea pigs . Methods Guinea pigs were sensitized with different Mycobacteria species .After sensitization , all guinea pigs were intradermally injected with rESAT6-CFP10 and PPD.At 48 h after the injection, the size of ery-thema at injection sites was measured by using a double-blind method .For guinea pigs sensitized with viable Mtb, the size of erythema at injection sites were measured at 24 h after the injection .The positive conversion rates of skin test with rESAT 6-CFP10 and PPD were calculated .Results The results of PPD skin test were positive in all guinea pigs sensitized with viable Mtb , killed Mtb and BCG with erythema diameters of (11.4 ±0.9) mm, (11.8±1.1) mm and (13.2±0.8) mm, respectively.Positive skin test with rESAT6-CFP10 was only observed in guinea pigs infected by viable Mtb-showing erythema diameters of (13.7±5.7) mm. The skin test with rESAT6-CFP10 was negative in guinea pigs sensitized by killed Mtb-and vaccinated by BCG.The skin tests by using rESAT6-CFP10 and PPD were performed on randomly selected guinea pigs at ninth day after infection by Mycobacterium tuberculosis H37Rv.At the 2nd week, totally 24 selected guinea pigs showed positive skin test results with rESAT6-CFP10 (24/24) with erythema diameters of (19.9± 3.0) mm, while only 15 out of 24 had positive PPD skin test with erythema diameters of (6.1±5.5) mm. At the 4th week, all guinea pigs showed positive PPD skin test (3/3) with erythema diameters of (12.7± 2.5) mm.Conclusion The skin test by using recombinant ESAT 6-CFP10 protein can effectively distin-guish viable Mtb infection from BCG vaccination and killed Mtb sensitization , which is a more suitable anti-gen than PPD for the early diagnosis of Mtb infection .

Objective To establish a suitable guinea pig model for evaluating the protective effects of new therapeutic TB vaccines in preclinical study .Methods The guinea pigs were subcutaneously injected with single-cell suspension of multi-drug resistant M.tuberculosis at a dose of 1000 CFU, 0.2 ml per animal.The study was divided into experimentⅠand experimentⅡ.In experimentⅠ, the guinea pigs were given immuno-therapy and/or chemical treatment on day 3 after infection .Four guinea pigs in each group were dissected at weeks 5, 7 and 9 after infection for evaluating lesion scores and histopathology changes of liver , spleen and lung, as well as bacterial load in spleen .In experimentⅡ, the guinea pigs were given immunotherapy and/or chemical treatment with different doses on day 14 after infection .All guinea pigs were dissected at week 5 after infection for evaluating lesion scores of liver , spleen and lung , as well as bacterial load in spleen .Results In experimentⅠ, all of the three treatments including immunotherapy combined with chemotherapy , immunotherapy alone and chemotherapy alone could effectively prevent organ lesion and reduce bacterial load in spleen , which were significantly different from negative control group .The immunotherapy combined with chemotherapy showed better treatment effects than other two treatments .Along with a prolonged period after drug withdrawal , the de-gree of organ lesion in immunotherapy group and chemotherapy group rebounded sharply , but only slightly in im-munotherapy combined with chemotherapy group .In experimentⅡ, animals in all treatment groups showed alle -viated organ lesion and reduced bacterial load in spleen .A relatively better treatment effect was observed in im-munotherapy combined with chemotherapy group .Conclusion The established guinea pig model of M.tubercu-losis infection showed an advantage of good repeatability .It might be used to evaluate the protective effects of new therapeutic vaccines against tuberculosis in preclinical study .

Objective To evaluate the efficacy of multiple injection of morphine combined with phloroglucinol in the treatment of renal colic. Methods One hundred and twenty patients with severe renal colic were equally divided into three groups by random digits table,with 40 cases each group. The group A was administrated with physiological saline 100 ml and phloroglucinol 80 mg intervenous drop infusion combined with morphine 9 mg intravenous injection fractionated into three times, and the group B was administrated with physiological saline 100 ml and phloroglucinol 80 mg intervenous drop infusion,and the group C was administrated with physiological saline 100 ml intervenous drop infusion and morphine 9 mg intravenous injection fractionated into three times. At 10,20 and 40 min after administration, the antalgic efficacy of three groups were analyzed as well as the side effect. Results At 20 min and 40 min both of the total efficacy rates in group A[82.5%(33/40),95.0%(38/40)] were higher than those in group B [62.5%(25/40),80.0%(32/40)] and group C [60.0%(24/40),77.5%(31/40)] (P＜ 0.05),and the colic-exclusion rate in group A was also higher than that in group B and group C (P ＜ 0.05). The difference of the efficacy rates in group A in these two time-points had no statistical significance (P ＞0.05). No increased pain occurred in group A except 1 case of vomiting. Conclusion Multiple injection of morphine combined with phloroglucinol is quick, effective and safe in the early treatment of renal colic.