Objective To investigate the related factors effecting the genotoxicity and lipid peroxidation of organic ex-tracts from source water of Huaihe River and its tap water on mice.Methods XAD-II resin was used to absorb the organic chemical pollutants in source water and tap water.The mice were exposed to organic extracts through peritoneal injection continuously for5days.The micronucleus test,the sperm deformity test,the determination of the activities of SOD and GSH-Px and the concentrations of LPO in serum,liver and brain of mice were carried out.Results The fre-quncies of micronuclei and abnormal sperm of mice exposed to organic extracts at dosage of0.01ml/1g(bw)corre-sponding to100L/kg(bw)source water,finished water and tap water increased significantly compared with those of controls(P

Child ; Diagnosis, Differential ; Humans ; Lung Diseases ; diagnosis ; Tuberculosis, Pulmonary ; diagnosis

Background Increase in ophthalmic optical medical instruments and microsurgical applications leads to retinal photochemical damage and other problems delivery of a variety of devices,so the in-depth study and understanding of its pathogenesis after retina light damage can provide a reference for the clinical treatment of related diseases.Objective This study was to investigate the therapeutic effect and relative mechanism of erythropoietin (EPO) on mouse retina photic injury by studying the expression of matrix metalloproteinases-2 (MMP-2)and MMP-9.Methods Fifty-two SPF BALB/c mice were randomized into normal control group,simple light-induced group and EPO pretreatment group by balloting method.The mice of simple light-induced group and EPO pretreatment group were continuously irradiated with 6000 lx diffuse light for 4 hours in a home-made box to establish the models of light-induced damage;while recombinant human EPO (rhEPO)of 5000 U/kg was intraperitoneally injected prior to the light exposure in the EPO pretreatment group.The expressions of MMP-2 and MMP-9 were examined at 6,12,36,72,96 hours and 7 days following light-exposure by immunohistochemistry.Results Edema and structural disorder of RPE cells appeared inthe simple light-induced group after light-exposure and aggravated with lapse of light-exposure time,but no similar change was seen until 7 days in the EPO pretreatment group.The immunohistochemistry findings showed that the expression of MMP-2(A value)in RPE cells was less in the normal mice.However,a large quantity of positive cells appeared in RPE layer 36 hours after light-exposure.Compared with the simple light-induced group,the positive expression of MMP-2 protein in EPO pretreatment group was significantly decreased,showing statistically significant differences among these three groups and different time points (Fgroup =3.68,P =0 04; Ftime =9.13,P=0.00).There was hardly any MMP-9 expression in the retina of the normal mice.In simple light-induced group,a few of positive cells appeared in RPE layer 6 hours after light-exposure and reached its peak 12 hours following light-exposure.The gradually down-regulation of MMP-9 expression happened 96 hours later following light-irradiation.The expression tendency of MMP-9 in EPO pretreatment group was similar to the simple light-induced group.Significant differences in expressions of MMP-9 were found among different groups and time points (Fgroup=3.61,P =0.04;Ftime =16.91,P=0.00).Conclusions MMP-2 and MMP-9 may be involved in the mechanism of retina photic injury by down-regulating the expression of MMP-2 and MMP-9 in RPE cells.

Bronchial Diseases ; diagnosis ; diagnostic imaging ; physiopathology ; therapy ; Bronchioles ; pathology ; physiopathology ; Child ; Child, Preschool ; Diagnosis, Differential ; Female ; Humans ; Infant ; Male ; Respiratory Function Tests ; Retrospective Studies ; Tomography, X-Ray Computed ; Treatment Outcome

Adenocarcinoma, Mucinous ; pathology ; Breast Neoplasms ; pathology ; Carcinoma, Ductal, Breast ; pathology ; Carcinoma, Renal Cell ; pathology ; Carcinoma, Squamous Cell ; pathology ; Cystadenocarcinoma, Mucinous ; pathology ; Cystadenoma, Mucinous ; pathology ; Female ; Giant Cells ; pathology ; Humans ; Osteoclasts ; pathology ; Ovarian Neoplasms ; pathology ; Pancreatic Neoplasms ; pathology ; Thyroid Carcinoma, Anaplastic ; Thyroid Neoplasms ; pathology ; Tongue Neoplasms ; pathology ; Urologic Neoplasms ; pathology

Objective To investigate the effect of palato-pharyngo-plastry on patients with coronary heart disease (CHD) plus obstructive sleep apnea hypopnea syndrome (OSAHS). Methods The 113 OSAHS patients with CHD after palato-pharyngo-plastry from January 2001 to December 2006 were enrolled and followed up. The other 125 cases treated with continuous positive airway pressure (CPAP) were as control group. Results The fundmental factors of CHD including cholesterol, triglyeride, fasting blood glucose and body mass index (BM1) showed no statistical differences between two groups (x2 or t= 4.788, 0.479, 0.541, all P>0.05) . Only the oxyhemoglobin saturation during sleep was higher in study group than in control group [(91.2± 2.5)% vs. (87.6±4.2)%, P=0.046]. The angiography showed that 87 cases (77.0%) retained stable, 24 cases (21.2%) became severe in study group. As compared with control group, there were no statistical differences (both P>0.05). 37 cases (32.7%) in study group and 58 cases (46.4%) in control group who suffered from angina became severe with statistical differences between two groups (x2=4.615, P=0.032). The incidences of myocardial infarction and sudden death were lower in study group (3.5% and 0.8%) and in control group (5.6% and 2.4%), showed no statistical, difterences be tween twogroups. x2=0.571 and 0.495, P>0. 05). Conclusions Compared with CPAP, the palato-pharyngo-plastry can improve oxyhemoglobin saturation and reduce angina symptom, but has no better effect on progress of coronary atherosclerosis and acute coronary disease than CPAP.

2 g/L can′t excluded SCID.

Clinical competence was estimated for grades 2011-2013 general practitioners (GPs)trained by the DxR Clinician software.Clinical cases were solved on computer.And the abilities of diagnosis,thinking and handling were assessed.The average score of all GPs was 61.68 ± 10.69.The average score of diagnostic ability was the highest at 71.82 ± 15.47 (weighted score of 25.1).The average score of thinking ability was 62.36 ± 10.40 (weighted score of 28.1).And the average score of handling ability was the least at 42.27 ± 18.22 (weighted score of 8.5).Significant differences in average scores existed between grades 2011 and 2013 (P ＜ 0.05).Significant differences in score of clinical thinking ability existed between grades 2011,2012 and 2013 (P ＜ 0.01) respectively.None of them passed the part of handling.The longer period of training,the higher scores the residents obtained.Since the ability of clinical handling fared the worst,targeted training should be strengthened.

Objective To investigate the clinical application of temporary balloon occlusion of the common iliac artery in performing cesarean section for patients with pernicious placenta previa and placenta accreta.Methods A total of five cases with ultrasound or MRI diagnosed pernicious placenta previa and placenta accreta were analyzed retrospectively.One of the cases was diagnosed Rh(-)blood type.Prophylactic temporary balloon implantation in bilateral common iliac arteries were carried out before cesarean section.Digital subtraction angiography ensured the position of balloon catheter and the catheter was fixed.The balloon was inflated immediately after the removal of the fetus.The balloon was removed at 6-8 hours after the cesarean section.The amount of blood loss,transfusion requirement,cesarean hysterectomy rate, and X-ray exposured time and dose during the procedure were recorded.Results Temporary balloon implantation in bilateral common iliac arteries in all five patients were obtained successfully.The blood loss was seen <500 mL in one patient and 500-1 000 mL in other four patients.Because of placenta implantation over depth of serosa and placenta percreta in one case,massive intractable hemorrhage occurred in short time,partial hysterectomy had to be carried out.The uterus was retained in other four cases.Conclusion The temporary balloon occlusion of the common iliac artery in performing cesarean section is a safe and effective technique,and it can reduce the amount of blood loss,transfusion requirement and secondary risk due to uncontrollable bleeding during surgery.