BACKGROUND: At present, there are some researches on the cognitive identification of Chinese characters at home or abroad, however, most of them are based on the normal and healthy people.OBJECTIVE: To investigate the processing styles of optical information on phonemic code, graphic code and semantic code of Chinese haracters between hearing-disabled and normal people.DESIGN: Retrospective, observational and compared analysis based on the hearing-disabled as research subjects and the normal as the controlled group.SETTING: Department of education in a university.PARTICIPANTS: This study was completed in Xi' an between October 2001 and April 2002. With the mean age of 17 years and half in gender, 20hearing-disabled people, who were in grade 6 to grade 8, were selected from the Second School for the Deaf and Dumb in Xi' an. Inclusion criteria: The hearing loss of people was more than or equal to 92 dB. Exclusion criteria:People with acquired hearing-disabled were excluded. At the beginning of study in primary school, they were accepted oral training and taught Chinese pinyi, but gesture was the main communicated style in their daily life. With the mean age of 15 years and half in gender, 28 normal people, who were in grade 3, were selected from the No. 99 Middle School in Xi'an.METHODS: This study showed with serial opticum. The diagnostic method was compared with the cognitive identification of the three kinds of Chinese characters between the hearing-disabled and the normal respectively.phonemic code, graphic code and semantic code between hearing-disabled characters between hearing-disabled and normal people.RESULTS: The results showed that the function of graphic code in visual processing was strongly correlated with recognition of words of Chinese characters than the phoneme code and semantic code in both the hearing-disabled and hearing children. For hearing-disabled children, the alternative was the direct access that a semantic code was produced directly from a translation of the graphic code, however, the hearing children used the strategies of grapheme-phoneme conversion rules to interpret the meaning of words.CONCLUSION: The analysis of various results showe that no significant differences of mental processing are found between the hearing-disabled and hearing children. Perhaps both the direct access and the grapheme-phoneme conversion will be a comprehensive information processing activated each other.

Objective To compare the clinical curative effect between transjugular intrahepatic portosystemic stent-shunt (TIPS) and TIPS together with gastric coronary vein embolization (GCVE) in treating cirrhosis portal hypertension (PHT) associated with upper gastrointestinal hemorrhage (UGH),and to discuss the necessity,feasibility and clinical curative effect of TIPS plus GCVE.Methods The clinical data of 38 PHT patients with UGH,who were admitted to authors' hospital during the period from April 2010 to May 2012,were retrospectively analyzed.Only TIPS was employed in 15 patients (group A),and TIPS plus GCVE was adopted in 23 patients (group B).Before and after operation,the indexes,hemodynamics of portal vein and spleen,the morphology of spleen,and the degree of gastrointestinal varices were determined and analyzed.The patients were followed up to observe the occurrence of postoperative complications.Results In both groups,the postoperative portal vein pressure showed an obvious reduction with accelerated velocity of flow,and the splenic venous congestion index was decreased,these changes were statistically significant when compared with the preoperative ones (P＜0.05),and which was more obvious in group B than in group A (P＜0.05).After the treatment,the esophagogastric varices (EGV) was obviously improved,the improvement rates of group B and group A were 94.7％ and 66.6％ respectively,the emergency hemostasis rates of group B and group A were 100％ and 75.0％ respectively,The rates of re-bleeding were 4.3％ and 28.5％ respectively;the above results of group B were statistically better than those of group A (P＜0.05).No statistically significant differences in liver function indexes existed between preoperative values and postoperative ones in the same group as well as in group comparison (P＞0.05).The differences in the postoperative hepatic encephalopathy (HE) occurrence and in primary patency rate of stent between the two groups were not statistically significant (P＞0.05).In both groups,the re-intervention patency rate was 100％.The incidence rate of HE in patients in whom the distal end of stent was located in the left branch of portal vein was strikingly lower than that in patients in whom the distal end of stent was located in the right branch of portal vein (P＜0.05).Conclusion For the treatment of PHT associated with UGH,TIPS combined with GCVE carries reliable curative effect,this therapy is superior to simple use of TIPS.

The long-term results of 118 cases inoperable stage ⅢB non-small cell lung cancer were reported． All patients received CAP regimen or MVP regimen chemotherapy． 97 patients received radiotherapy, The results showed that 1-, 3-, 5- year survival rates were 53.4%, 19.5% and 8.5% respectively． The 3-, 5- year survival rate for squamous cell carcinoma were higher than those adenocarcinoma (P<0.05)． The 3-, 5- year survival rate for T4N0 M0 were higher than those T3 N3 M0,T4 N1～2 M0 and T4 N3 M0, (P<0.05～0.01)． There was no differencein the 3-, 5-year survival rate between CAP regimen and MVP regimen．

Objective: To provide a basis for proper use of the continuous blood purification machine through analysis of its malfunction related factors. Methods: Through study of using continuous blood purification machine by Baxter Aquarius in four of the best hospitals in Shanghai for the past three years, lists frequent incidences of malfunction classification, causes, and treatment methods based on statistics on the process of using the alarm malfunction, and solved malfunction by manufacturer’s engineers. Results:To provide clinical guidance for operation of CRRT equipment, improve the safe and stable operating condition through comparison and analysis of the continuous blood purification machine malfunction. Conclusion: The regular maintenance and proper use of clinical operations will help the stability of operating condition of the continuous blood purification machine.

The KCNQ gene family encodes five Kv7 channel sub-units(Kv7. 1-5) and four of these (Kv7. 2-5) channels are ex-pressed in the central nervous system ( CNS ) . Neuronal Kv7 channels participate in both pre-and post-synaptic modulation of neurotransmissions. Activation of neuronal Kv7 channels inhibits neuronal excitability and limits the release of monoaminergic neu-rotransmitter. Kv7 channel openers provide novel therapeutic op-tions in the treatment of disease states characterized by overactiv-ity of monoaminergic neurons ( e. g. schizophrenia, anxiety and drug abuse) . This review summarizes the studies on expression and functional role of Kv7 channels in monoaminergic neurotrans-mission in the CNS and the potential therapeutic effect of Kv7 channel openers on the disease characterized by overactivity of monoaminergic neurons.

Flavones and flavonols belong to flavonoids that have anti-cancer activities. In order to explore molecular mechanism and inhibitory effects of flavones and flavonols on human esophageal carcinoma cells, the inhibition of proliferation and the induction of G2/M cell cycle arrest in KYSE-510 cells and OE33 cells treated with three flavones (luteolin, apigenin, chrysin) and three flavonols (quercetin, kaempferol, myricetin) were analyzed by MTT array and flow cytometry. Among these compounds, luteolin and quercetin were the most active flavonoid to inhibit the proliferation of KYSE-510 cells and OE33 cells, respectively. The genes related to cell cycle control were analyzed by gene chip, after KYSE-510 cells and OE33 cells were treated by luteolin and quercetin, respectively. The results were shown that the expression of p21waf1 was induced and the expression of cyclin B1 was suppressed in KYSE-510 cells, and that the expression of GADD45? and 14-3-3? were induced and the expression of cyclin B1 was suppressed in OE33 cells. These results were verified by real-time RT-PCR and Western-blot. The comparative effects of all six compounds on the regulation of these gene expressions at the mRNA and protein levels were also analyzed by real-time RT-PCR and Western-blot. The results were shown that p21waf1, GADD45?, 14-3-3? and cyclin B1 were the target genes which mediated the effects of flavones and flavonols on induction of cell cycle arrest in KYSE-510 cells and OE33 cells.

It has been a novel clinical way to repair damaged articular cartilage with autologous chondrocytes cultured in vitro using cartilage tissue engineering technique. There have been many articles about the techniques of chondrocytes culture in recent years. After summarizing and analyzing the involved articles,factors on chondrocytes cultured in vitro were reviewed,including dimension,stress,cell density and oxygen tension,etc. Chondrocytes cultured in three-dimensional with multi-factors in vitro can promote quality and quantity of cartilage in tissue engineering. But factors on chondrocytes culture are so complicated that further researches will be needed.

Objective To study the effects of Ginkgo biloba extract(EGb) on the volume of cerebral infarction and expression of caspase-3 in ischemic-reperfusion rats.Methods Setting up the brain ischemic and reperfusion model in rats by Nagasawa way.Both groups rats treated with small dose of EGb and large dose of EGb were injected intraperitoneally with EGb 50 mg/kg and 100 mg/kg at 30 min before the trial and 1 h after cerebral ischemic respectively.The infarction volume and caspase-3 expression were detected by TTC staining and immunohisto-chemistry.Then the results were compared with ischemic-reperfusion group.Results In groups treated with small dose of EGb and large dose of EGb,infarction volumes [(83.4?2.9)mm3,(37.0?2.5)mm3] were smaller obviously than that in the ischemic-reperfusion group [(138.8?6.1)mm3](all P

At present, mesenchymal stem cell treatment mainly applies in local and systematic transplantation, gene therapy combining stem cells, as well as tissue engineering. Based on mesenchymal stem cells are easily separated, cultured, have potentials of fast proliferation, easy exogenous gene's induction and expression, and can maintain multi-differentiation potential throughout long-term culture in vitro, and the quite stable genetic background. Mesenchymal stem cells have widely application prospect in tissue engineering of ophthalmology. At present, domestic and foreign researches have had massive evidences that mesenchymal stem cells can differentiate into cornea and retina cells. The application of mesenchymal stem cells in the anterior eye is usually by dint of a kind of carrier, such as amniotic membrane, fibrin gel membrane and so on. Moreover, the temperature sensitive culture dish has made the non-carrier transplantation of ocular surface stem cells. The application of mesenchymal stem cells in the posterior eye mostly concentrates in seeking for the feasible treatment of retinitis pigmentosa. Researches are mature on mesenchymal stem cells as seed cells acting on damaged tissue in ocular repairs and regeneration. But its oncogenicity and the security are waiting for further solving.

Two human esophageal cancer cell lines (KYSE-510 and OE33) were chosen as the tumor model to explore molecular mechanism of flavones and flavonols on induction of apoptosis. Effects of flavones (luteolin, apigenin, chrysin) and flavonols (quercetin, kaempferol, myricetin) on induction of apoptosis in KYSE-510 cells and OE33 cells were observed by DNA fragmentation, acridine orange staining and flow cytometry analysis. The results of real-time RT-PCR and Western-blot analysis showed that the treatment of KYSE-510 cells and OE33 cells with flavones and flavonols induced the expression of PIG3 at the mRNA and the protein levels. Western-blot analytical results further showed that induction of PIG3 caused apoptosis in both esophageal cancer cells through the mitochondrial pathway in a p53-independent manner, and p63 and p73 may be responsible for the induction of PIG3.