Accurate pre-operative evaluation of characteristics and various pathological subtypes of renal parenchymal tumors has important value for the choice of operation design as well as the assessment of prognosis.The advances of CT,MR and contrast-enhanced ultrasonography (CUES) in diagnosis of renal parenchymal tumors were reviewed in this article.

Objective To investigate the scavenging effect of Baoyuan anticancer oral solution on superoxide anion (O-2 ) and 1,1-diphenyl-2-picrylhydrazyl hydrate(DPPH) free radicals. Methods O-2 and DPPH were examined with the ESR (electron spin resonance) spin trapping method. Results The scavenging effect of Baoyuan anticancer oral solution diluted to 50 fold, on O-2 and DPPH free radicals was 81. 32% and 98. 47% , respectively. Conclusion Baoyuan anticancer oral solu-tion has a dose-related effect on free radical elimination.

Objective To explore the effect of human neural stem cells(hNSCs) transplantation to treat cerebral ischemic rats and the status of transplanted hNSCs in the ischemic brain tissue of these rats.Methods Human neural stem cells were separated from 10~13 weeks brains of human embryo and were cultured and induced to differentiate. The middle cerebral artery occlusion rat models were made and the human neural stem cells were transplanted through tail vein 1 day later. Neurological Severity Scores (NSS) tests were undertaken in two groups after transplantation. Immunohistochemistry was used to check the differentiation and migration of human neural stem cells in vitro and vivo.Results Neural stem cells from human embryonic brains had been successfully cultured. These cells formed typical neurospheres in suspension, and the majorities expressed nestin. Three weeks later, the neurological function of rats that received transplantation recovered much better than the rats without transplantation, as evidenced by NSS ( P

Objective To explore the effect of human umbilical cord blood cells (HUCBCs) transplantation to treat cerebral ischemia of rats and the status of transplanted HUCBCs in the ischemic brain tissue of these rats. Methods The mononuclearcells abstracted from 60～100 ml of cord blood of full-term babies were cultured in vitro and marked with 5-bromodeoxyuridine (Brdu)(5 ?mol/L) for 2 days. The middle cerebral artery occlusion rat models were made and the HUCBCs (3?106) were transplanted into the lateral ventricular 1 day later. Neurological severity scores (NSS) tests were undertaken at different time point after transplantation, and iimmunohistochemistry method was used to check the migration and differentiation of HUCBCs. Results The HUCBCs had the capacity of proliferation in vitro and were induced to differentiate into astrocytes, oligodendrocytes and neurons in vivo. 3 weeks later, the neurological function of rats that received transplantation recovered much better than the rats without transplantation, as evidenced by NSS (all P

Objective To investigate the proliferation of neural stem cells by subcutaneous injection of basic fibroblast growth factor(bFGF),epidermal growth factor (EGF)or combined bFGF and EGF respectively after transient focal cerebral ischemia in rats.Methods The right middle cerebral arteries(MCA) of rats were occluded for 2 h to establish transient focal cerebral ischemia model. bFGF, EGF,combined bFGF and EGF or vehicle were administered subcutaneously at 24, 48 and 72 h after MCA occlusion(MCAO).Thereafter,one administration every 3 d. Proliferating neural stem cells were labeled with bromodeoxyuridine (Brdu) immunohistochemically. Brdu-labeled cells were calculated to characterize neural stem cells in SVZ and the dentate gyrus of the hippocampus at 7 d,14 d,21 d after MCAO.Results Brdu-labeled cells were detected in the bilateral SVZ and the dentate gyrus of the hippocampus after MCAO in each group, the number of positive cells decreased progressively. Compared with the control group, the number of Brdu-labeled cells in treatment group increased significantly after treatment( P

Considering technology,regulations and other factors,nowadays we still use the records of print instead of in digital.《Electric Signature Law》makes a new environments for the study of electric medical records system.It regulates the writing,originally form and the save of electric medical records,affirms its value of evidence in court and prescribes what is dependable electric signature.

Objective:To screen the optimal base of compound titanium dioxide cream. Methods:Phenyl salicylate and titanium dioxide were respectively combined with 5 kinds of matrices to prepare compound titanium dioxide cream. The properties and stability of compound titanium dioxide cream were studied. Results:The 5 kinds of anionic emulsifiers all could be used to prepare compound titanium dioxide cream. The cream prepared with formula A was thick,and the cream prepared with formula B, C,D and E were delicate,luster and easy to smear. After the centrifugal test and low temperature test,the cream had no obvious changes. After the high temperature test,the cream prepared with formula A and B was dry and rough,the cream prepared with formula D had no significant changes when compared with that stored under room temperature,and the cream prepared with C and E was attenuated and changed into solution. Stored under the room temperature for 12 months,the cream prepared with formula D had no changes in the content and properties. Conclusion:Compound titanium dioxide cream prepared formula D is delicate and easy to smear with good stability,which shows good clinical application value.

Objective To explore the adverse effect of endemic fluorosis caused by fluoride from coal burning on the intelligence of children. Methods Four primary schools were selected respectively from slight, moderate, severe endemic fluorosis areas and the control area in Xinhua county of Hu'nan Province, and twenty children of grade 5 were randomly chosen in each school. The seriousness of dental fluorosis was examined by Dean's method and intelligence level was evaluated by CRT-RC. The morning urine was collected and the fluoride content in urine was measured by fluoride ion selection electrode method. Results The dental fluorosis was positively related to the fluoride content in urine (P0.05), but the difference was significant in the abilities of comparative inference, serial relationship and abstract inference (P

Objective To determine the effect of neoadjuvant chemotherapy (NAC) for cervix cancer on cell proliferation and apoptosis. Methods A total of 24 patients with squamous carcinoma of the cervix (SCC) were treated with one cycle of cisplatin combined with hydroxycamptothecine, bleomycin regimen. The expression of proliferating cell nuclear antigen (PCNA) and apoptosis index (AI) were detected before and after NAC with flow cytometry and TUNEL. Results Clinical response was 58.3% (14/24). Before and after NAC, the expression of PCNA were (0.386?0.078) and (0.125?0.040) respectively and AI were (0.052?0.027) and (0.248?0.078). Significant difference of PCNA and AI could be observed before and after NAC (t=22.859, t=16.06, P