Objective: To investigate the understanding of other' s mind in children with autism in Beijing.Method: The instrument of this study was experimental test story. Results: Children with autism could understand other person' s physical and social desire, and predict behavior of others in accordance with desires. They basically unerstood other' s positive and negative emotions. However, they had a special difficult in understanding other' s cognitive mental states such as false belief. Concluslon: It indicated that the development of understanding other' s mental state is much more gradual and complex. Understandding other' s false belief is not all or nothing. The difference in understanding other's false belief between children with autism is not absolute, but relative.

Chronic kidney disease(CKD) is a major global health issue that leads to end-stage renal disease which untreated.The use of stem cell therapy provides a new perspective in this area.Reviewing the experimental studies of stem cell therapy on CKD,many different,and even contradictory reports in this area were found.In this paper,the recent reports,and present several key issues of experimental stem cell treatment on CKD were reviewed,including the source of stem cell,the sort of experimental animal,the time of treatment and other experimental details.Hoping these may lead more understanding in this area.

Humans ; Infant, Newborn ; Infant, Newborn, Diseases ; Lupus Erythematosus, Systemic

Objective To assess the effects of very-low-carbohydrate diet (VLCD) on body function and body composition in obese or overweight subjects.Methods Thirty five overweight or obese subjects were enrolled in the study,including 10 males and 25 females with a mean age of (43 ± 10) years.All subjects received VLCD intervention and 30 min moderate-intensity exercise daily for 3 months.The height,weight,blood pressure,heart rate,blood lipids and body composition were measured before and 1,3 months after intervention.ANOVA or nonparametric test was used for statistical analysis.Results After 3-month intervention,compared to baseline,the average body weight was decreased by 17.2 and 5.9 kg,waist circumference was decreased by 15.1 and 4.5 cm,BMI index decreased by 4.3 and 3.4 kg/cm2,waist to hip ratio was decreased by 0.1 and 0.1,for males and females,respectively (F =11.65 and 5.28,8.36 and 3.73,9.28 and 12.06,3.32 and 19.43,all P ＜ 0.05).Compared with the baseline,the systolic pressure was decreased by 12.2 and 9.2 mmHg(1 mmHg =0.133 kPa),triglycerides were decreased by 0.25 and 0.42 mmol/L,fasting blood glucose was decreased by 0.13 and 0.43 mmol/L after 1 month and 3 months of intervention,respectively.The proportion of patients with fatty liver was decreased from 69％ (24/35) at baseline to 49％ (17/35) at 1 month after intervention and further to 6％ (2/32) at 3 months after intervention (x2 =27.52,P ＜ 0.05).Conclusion The results indicate that VLCD can effectively control the body weight,and significantly improve the state of body function disorder.

Technologies for the trans-institutional sharing of scientific data were studied with the sharing of nucleic acid sequence data as the study object , such as leaving a flexible space for implementation of the unified standards in working out the criteria for data sharing , implementing regular point to point data sharing and updating in agree-ment of institutional league , and providing multiple data services according to the unified working process by giving considerations to the local demands .The significance of trans-institutional sharing of scientific data under the insti-tutional league model was summarized for the reference in constructing the scientific datasharing platform.

Objective To investigate the relationship between endothelial damage and p120-catenin (p120-ctn) in a model of paraquat intoxication,and the modulatory effect of mangiferin on p120-ctn.Methods Human umbilical vein endothelial cells (HUVECs) were cultured in two compartment spreading apparatus in vitro.The endothelial cells were divided into three groups:control group (cultured in DMEM with 10％ fetal bovine serum),paraquat group (paraquat was added to the medium with final concentration of 0.05 μmol/L) and mangiferin group (cultured in medium with addition of paraquat for 30 minutes,then mangiferin was added in a final concentration of 20 μmol/L).The cellular permeability at 6,12,24,48,72 hours after culture in the three groups was measured.The expressions of p120-ctn 1A,p120-ctn 3A mRNA and p120-ctn protein were measured by reverse transcription-polymerase chain reaction (RT-PCR) and Western Blot analysis.The distribution of p120-ctn protein was observed by immunofluorescence.Results Compared with control group,cellular permeability in paraquat and mangiferin groups were increased with prolongation of time,and peaked at 72 hours [(29.86 ± 3.98)％,(24.39 ± 2.79)％ vs.(11.71 ± 1.67)％,both P＜0.05].The cellular permeability was significantly lower in mangiferin group than that in paraquat group at different time points (all P＜0.05).At 6 hours after intoxication,the expressions of p120-ctn 1A,p 120-ctn 3A mRNA (gray value) and p 120-ctn protein (gray value) were significantly lower in paraquat group than those in control group (p120-ctn 1A mRNA:0.150 ± 0.024 vs.0.433 ± 0.024,p120-ctn 3A mRNA:0.316 ± 0.043 vs.0.701 ±0.020,p120-ctn protein:0.485 ±0.031 vs.0.763 ±0.038,all P＜0.01).The expressions of p120-ctn 1A,p120-ctn 3A mRNA and p120-ctn protein were significantly higher in mangiferin group than those in paraquat group from 6 hours on (p120-ctn 1A mRNA:0.281 ± 0.021 vs.0.150 ± 0.024,p120-ctn 3A mRNA:0.602 ± 0.042 vs.0.316 ± 0.043,p120-ctn protein:0.675 ± 0.031 vs.0.485 ± 0.031,all P＜0.01),and they were gradually increased with prolongation of time,and peaked at 72 hours (p120-ctn 1A mRNA:1.376 ±0.128 vs.0.150 ± 0.024,p120-ctn 3A mRNA:1.251 ± 0.059 vs.0.316 ± 0.043,p120-ctn protein:0.844 ± 0.050 vs.0.485 ± 0.031,all P＜ 0.01).Under upright fluorescence microscope,p120-ctn was mainly distributed in the cell membrane in control group,with a slight expression in cytoplasm,and no expression in the nuclei.With prolongation of time,p120-ctn expression in the cell membrane was gradually decreased in paraquat group,while it was increased in the cytoplasm and nuclei,with blurring of cell membrane and widening of cellular gap.p120-ctn expression was improved on the cell membrane in mangiferin group at corresponding time points,with decreased in expression in nuclei and cytoplasm.Conclusion The p120-ctn protein plays an important role in the enhancement of endothelial permeability in paraquat intoxication,and mangiferin may attenuate endothelial injury in paraquat intoxication possibly through modulation of p 120-ctn protein.

End stage liver disease is a serious threat to human health.Existing conventional therapies are far from ideal,and orthotopic liver transplantation is limited by the lack of donor liver.A new therapy,transplantation of hepatic stem cell,is a promising approach.Hepatic oval cells are hepatic stem/progenitor cells(HSC/HPC)during hepatic regeneration,and they are being referred to as hepatic precursor cells.It got its name because of its oval nucleus,high nuclear/cytoplasmic ratio and other morphological features.Research has shown increasingly importance in the knowledge of hepatic oval cells.There are many signaling pathways in hepatic oval cells activation and proliferation.As a branch of the Wnt signaling pathway,Wnt/β-catenin signaling pathway has a significant effect on hepatic oval cells activation and proliferation.However,the exact mechanisms of this process have not been completely elucidated.This review describes the role of Wnt/β-catenin signaling pathway in hepatic oval cell activation and proliferation.

OBJECTIVE To investigate the associated risk factors for the infected patients in respiratory intensive care unit(RICU) and to study the resistance of isolates.METHODS To study the bacterial spectrum and drug resistance test of all the patients with hospital acquired infection from Jan to Dec 2005.Identification and antimicrobial susceptibility were determined with the methods of API and K-B,respectively.RESULTS A total of 265 strains were isolated from 117 patients,the rate of isolation of Gram-negatives was the highest(74.3%),the species were predominated by Pseudomonas aeruginosa,Acinetobacter baumannii and Klebsiella pneumoniae,the rates of isolates were 28.68%,23.02% and 5.66%,respectively.The predominated species of Gram-positives was Staphylococcus aureus.Gram-negative bacilli were susceptible to imipenem and meropenem,there were not vancomycin-resistant strains.CONCLUSIONS It is important to realize the associated risk factors of infected patients in RICU and to promote the rational use of antimicrobial agents.