AIM To investigate the influences of Astragalus and Hurido effective components on apoptosis of rat glomerular mesangial cells.METHODS The proliferation of rat mesangial cells was induced by LPS and then intervened with Astragalus (astragalus polysaccharide,astragaloside Ⅳ,calycosin) and Hurido (hirudin).The cells were collected after 24 h.4',6-Diamidino-2-phenylindole (DAPI) staining was used to observe cell nuclear changes.Quantitative and qualitative expressions of Bcl-2 were detected by streptavidin-biotin complex (SABC).RESULTS Astragalus and Hurido effective components could induce the apoptosis of rat glomerular mesangial cells,and decrease the expression of Bcl-2.CONCLUSION Astragalus and Hurido effective components can induce the mesangial cell apoptosis by down-regulating Bcl-2 expression,which can be used for the treatment of mesangial proliferative glomerulonephritis.

Objective To investigate the memory monitoring ability in patients with hepatolenticular degeneration(HLD) and explore the mechanism of their memory impairment.Methods The feeling-of-knowing (FOK) paradigm of episodic memory(EM) and semantic memory(SM)were established and subsequently applied to 30 HLD patients and 30 healthy control(HC) participants who were matched in age and educational level.Results Compared with healthy control group (FOK-EM recall (64.17 ± 29.21) ％ ; FOK-SM recall (84.72 ± 11.44)％),the FOK-EM recall((26.55±20.92)％) and FOK-SM recall((53.93±28.42)％) in HLD patients were significantly lower(t=-5.140,P＜0.01 ; t=-5.123,P＜0.01).The positive judgment and correct recognition of FOK-EM ((50.64±29.43) ％) and the negative judgment and correct recognition of FOK-EM((12.80± 18.32) ％) in the HLD group were significantly different from the HC group (the positive judgment and correct recognition of FOK-EM:(75.15±31.73)％ and the false judgment and correct recognition of FOK-EM:(1.81±5.41)％; t=-2.693,P＜0.05 ; t=3.026,P＜0.01).Most importantly,the stroop effect was positively correlated with the negative judgment and correct recognition of FOK-EM in HLD group(r=0.601,P＜0.01).Conclusion The results show that the HLD group underestimate their memory performance on episodic FOK,and the impairment of memory monitoring is positively correlated with the deficit of executive function,indicating that the prefrontal impairment can be an influential factor of memory disorder in HLD,whereas the unimpaired semantic metamemory FOK indicates the episodic and semantic metamemory monitoring may depend on different neural network.

AIM:To explore the effect of homocysteine (Hcy)-mediated endoplasmic reticulum stress on lipid metabolism in hepatocytes.METHODS: HepG2 cells used in the study were treated with 5 mmol/L Hcy. The concentrations of Hcy, triglycerides (TGE) and cholesterol (CHO) in the cells were measured. In high methionine diet-induced hyperhomocysteinemia C57BL/6 mice, the concentrations of TGE and CHO in hepatocytes were analyzed. The mRNAs and proteins expressions of glucose-regulated protein 78 (GRP-78) and sterol regulatory element binding protein (SREBP-1) were also assessed.RESULTS: The concentrations of Hcy and lipids (TGE, CHO) in HepG2 cells at different time point were elevated after treated with 5 mmol/L Hcy (P0.05,vs 0 week). The mRNAs and proteins expressions of GRP-78 and SREBP-1 in mice at different time point after high methionine diet were higher than that at 0 week (P

Objective To explore the time course of response inhibition function in juvenile delin-quents with antisocial personality characteristics.Methods The healthy control group ( n=21),juvenile delinquents with antisocial personality characteristics ( CD +AP ) ( n=18) and juvenile delinquents ( CD) ( n=18) were selected in current study by recording the event-related potentials in a Go/Nogo task.N2 and P3 components of event-related potentials were analyzed.Results Behavioral results showed that Nogo cor-rection rate of control group ((93.13±2.71)%) were significantly higher than CD group ((87.51±2.82)%, P<0.01) and CD +AP group((85.63±2.45)%, P<0.01).In CD+AP group,the amplitude of the N2nogo ( (-1.82±1.64)μV) was significantly lower than control group ( (-6.36±2.93)μV, P<0.01) ,and the am-plitude of the P3nogo ((5.52±2.79)μV) was significantly decreased than healthy control ((11.26±4.92)μV, P<0.01).In CD group,the amplitude of P3nogo ((5.20±3.17)μV) was significantly reduced than healthy control ((11.26±4.92)μV, P<0.01).Conclusion N2nogo and N2d are associated with the early phases of response inhibition and reflected response conflict.P3nogo and P3d are associated with the late phases of response inhibition and monitored inhibitory control.These data suggest that CD+AP participants exhibited im-paired response conflict and inhibitory control.This may be associated with persistent antisocial behavior.

Traditional Tibetan medicine nature theory was the core of Tibetan medicine. This study was aimed to understand the scientific values of Tibetan medicine correctly and catch its unique advantages accurately. The history origin, nature and taste, target, effect, the relationship between diseases and Tibetan medicine and other aspects of traditional Tibetan medicine nature theory were discussed in this paper. Several points were put forward, which included the research of Tibetan medicine nature theory was the premise to maintain and develop Tibetan medicine; it was necessary to carry out literature research, definite and improve the nature theory; the data mining technology and systems biology should be applied to the theory research to elucidate the rules and scientific connotation of Tibetan medicine nature; building the model of experimental study with clinical research to determine its clinical values forward during the development of Tibetan medicine nature theory research.

Objective To assess the validity of the Oxford classification for pediatric patients with primary IgA nephropathy (IgAN) and to analyze the correlations between clinical characteristics at time of biopsy and the Oxford classification,which identified four definitive histological features:mesangial hypereellularity,endocapillary proliferation,segmental sclerosis and tubular atrophy/interstitial fibrosis.Methods Clinical and pathological characteristics of 35 children with primary IgAN were analyzed.The scoring sheet was based on the Oxford classification of IgAN,and four pathological variables,namely mesangial hypercellularity (M),endocapillary proliferation (E),segmental sclerosis (S),and tubular atrophy/interstitial fibrosis (T) were assessed.A total of 35 children with IgAN were grouped according to the scores(M,E,S,T):the M0 and M1 group,E0 and E1 group,S0 and S1 group,T0 and T1/T2 group.These groups were compared in terms of estimated glomeralar filtration rate (eGFR),mean artery pressure (MAP) and proteinuria at time of biopsy.Results We found that the Oxford classification was significantly negatively correlated with eGFR (Pearson's correlation coefficient r =-0.48).However,the Oxford classification was shown to be positively associated with initial proteinuria per day(Pearson's correlation coefficient r =0.35).The M,E,S,T scores were strongly associated with proteinuria at biopsy (P ＜ 0.05),and the lesion S was not correlated with eGFR (P ＞ 0.05).The lesion T was significantly associated with eGFR (P =0.001) and MAP (P =0.03) at biopsy.Conclusion We confirmed that the Oxford classification of IgA nephropathy was valid for children.In addition,our study indicated that the four histological lesions M,E,S and T were significantly associated with clinical features.

Objective To evaluate the diagnostic value of gray-scale ultrasonography (GSU) combined with contrast-enhanced ultrasonography (CEUS) and real-time elastography imaging (EI) in solid thyroid nodules.Methods A total of 124 solid nodules were collected from Xuanwu Hospital of Capital Medical University from September 2011 to November 2014, including 49 benign nodules and 75 malignant nodules conifrmed by surgical pathology. The data of multimodal imaging were retrospectively analyzed and compared with the pathological results. The parameters among the groups were compared byχ2 test. Four diagnostic models including the statistically signiifcant independent variables were established accord to different combinations of routine ultrasound examination. The binary Logistic regression equation using the pathological results as the dependent variable Y and the ultrasound features of thyroid nodules as independent variableX was established for calculating the area under the receiver operator curve (ROC) and multiple regression analysis furthermore.Results There were statistically significant differences in aspect ratio, margin condition, echo type, CEUS features, elastic imaging score and elastic strain rate of benign and malignant thyroid nodules(χ2=13.966, 7.106, 24.215, 17.250 and 27.158,P<0.05).The four Logistic regression models were statistically signiifcant (χ2=5.37, 5.37, 8.155, 8.155, allP<0.05). By using modelⅠ,Ⅱ,Ⅲ andⅣ, the diagnostic sensitivity, speciifcity and accuracy of malignant nodules were (73.8%, 75.9%, 79.7%, 83.3%), (67.5%, 70.7%, 85.2%, 86.7%), and (71.8%, 74.2% 81.8%, 84.4%) respectively. The area under the ROC of logistic equation predicted values were (0.778, 0.809, 0.875 and 0.898, allP<0.01). Multivariate categorical analysis showed that aspect ratio, margin condition and the elastic strain rate ratio (χ2=13.73, 7.541 and 11.461, allP<0.05) of thyroid nodules were effective diagnostic indicators. Conclusions Our study indicated that CEUS and EI could be helpful modality for GSU to improve the diagnostic accuracy of thyroid nodules. The combined application of multi mode ultrasound examination has a high diagnostic value.

Objective To investigate the optimal measures and clinical effect of perioperative nursing care for patients with cephalocervical cancer treated with CT-guided radioactive 125I seed implantation. Methods Preoperative, intraoperative and postoperative continuous and comprehensive nursing was strictly carried out in 93 patients with cephalocervical cancer who underwent CT-guided radioactive 125I seed implantation treatment. The clinical results were analyzed and evaluated. Results The 125I seed implantation procedure was successfully accomplished in all 93 patients; the success rate was 100%. Shedding of 6 particles was observed in one patient, and shedding of 5 particles was observed in another patient; grade Ⅳskin injury was seen in 3 cases, which were improved after symptomatic treatment. All patients were uneventful at the time of discharge from hospital. Conclusion To ensure a successful CT-guided radioactive 125I seed implantation for the treatment of cephalocervical cancer, professional, meticulous and standardized nursing is the important guarantee.

ObjectiveTo explore the clinical features and factors inlfuencing the prognosis of childhood non-Hodgkin's lymphoma (NHL).MethodsPathologically diagnosed 78 pediatric patients with NHL and treated in the Afifliated Hospital of Qingdao University from January 2004 to August 2013 were collected and analyzed. Patients were grouped according to age, sex, tumor size, immunologic classiifcation, B-symptoms, LDH, hemoglobin and clinical staging. The 5-years event-free survival rate (EFS) were calculated and analyzed by Kaplan-Meier method, and the difference of the survival rate between groups were com-pared. Using Cox proportional hazards model, we analyzed the possible factors that might inlfuence 5-years event-free survival rate EFS , such as age and clinical staging. TheOR value and the 95%CI were calculated.ResultsAmong the 78 cases, median age of onset is 7 years old, male to female ratio is 2.90:1, there are 25 cases of T-cell type and 53 cases of B-cell type. According to pathological types,Burkitt lymphoma is the most common (34.6%), followed by T-lymphoblastic lymphoma (20.5%), diffuse large B-cell lymphoma (11.5%). According to the St. Jude malignant lymphoma staging system, there are 2 cases in stage I, 9 in stageⅡ, 35 in stageⅢ and 32 in stageⅣ. Swelling of periphery lymph node (80.7%) was observed as initial symptom in 26 cases of lymphoblastic lymphoma. Among 45 cases of mature B-cell tumor, the main clinical feature including abdominal cavity and gingival were observed in 27 cases of Burkitt lymphoma. Among the 73 cases received treatments, 66 cases (90.5%) attained CR (complete remission) and 4 cases (5.5%) attained PR (partial remission) by cytology and radiographic assessment after two course of combined chemotherapy, 2 cases (2.7%) rapidly relapsed after the remisson of one course treatment, 1 case (1.3%) appeared the central nervous system inifltration in the chemotherapy. With median follow-up time of 42 months, the 5-year EFS of the 73 cases was (67.0+5.5)%. Single factor analysis showed that B-symptom, LDH, and clinical staging were signiifcantly correlated with prognosis (P<0.05), while age, sex, tumor size, hemoglobin and immune classiifcation was independent of prog-nosis (P>0.05). Multiple factor analysis showed that LDH and clinical staging inlfuenced the prognosis (OR=3.34,95%CI 2.275?10.683,P<0.01;OR=4.354,95%CI 1.519?12.475,P<0.01) .Conclusionclinical features of childhood NHL are variable. LDH and clinical staging at primary diagnosis are important factors affecting the prognosis.

Objective This study examined the effects of repaglinide on the proliferation, differentiation, and apoptosis of mouse pre-osteoblasts MC3T3-E1 subclone 14 cell under high glucose condition.Methods MC3T3-E1 cells cultured in vitro for 48h were divided into the following groups: control group and repaglinide with different concentrations (0.01, 0.1, 1, and 10 μmol/L).Cell proliferation was measured by CCK-8 assay.mRNA levels of type I collagen(COL-Ⅰ), osteopontin(OPN) and alkaline phosphatase(ALP) were assayed using quantitative real-time PCR.Expression of apoptosis related proteins (Bcl-2, Bax) was measured by western blot analysis.Results (1)Compared with control group, the proliferation rate of repaglinide with different concentrations increased, while the proliferation rate of the 1 μmol/L repaglinide group significantly higher than that of the control group(P<0.05).(2) There was no significant difference on the COL-Ⅰ mRNA expression among the repaglinide groups and the control group(P>0.05).Compared with control group, the OPN and ALP mRNA expression increased significantly in the 1 μmol/L repaglinide group(P<0.05), while the OPN expression was significantly declined in the 10 μmol/L repaglinide group(P<0.05).(3)The protein expression of Bcl-2 was positively related with repaglinide concentration(P<0.05), while the protein expression of Bax went down in the 1 and 10 μmol/L repaglinide groups(P<0.05).Conclusion When exposed to high glucose concentration, repaglinide in a certain concentration range may promote the proliferation and differentiation of MC3T3-E1 subclone 14, while restrain its apoptosis.