Objective To discuss the relationship between self-control and aggressive structure of middle school students.Methods Using Self-control Questionnaire,Aggressive Questionnaire and the Implicit Association Test(IAT)to test 298 middle school students.Results The effects of students'thought control,emotion control and behavior control related not remarkable on implicit aggression(r=-0.11,r=-0.07,r=-0.03,P>0.05),but remarkable on the explicit aggression(β=-0.232,β=-0.188,β=-0.231,P＜0.05).The moderating effect of implicit aggression to the relationship between self-control and explicit aggression is weakly(△R2=0.007,P>0.05).Conclusion Self-control has remarkable inhibitory action to the explicit aggression,and the inhibitory action will not be influenced by implicit aggression.

Objective To observe the changes of retinal morphology and function of macular-off rhegmatogenous retinal detachment (RRD) after scleral bulking.Methods In this prospective study,42 eyes of 41 patients who underwent scleral bulking were enrolled.There were 26 males (27 eyes) and 15 females (15 eyes),with an average age of (33.78± 11.21) years.Best corrected visual acuity (BCVA),intraocular pressure,indirect ophthalmoscope,visual fields,optical coherence tomography (OCT) and B scan of ocular ultrasound were measured for all patients.The average BCVA was 0.29±0.18.The retinal detachment time was (21.12±3.71) days.The mean visual field defect (MD) was (13.54±6.44) dB.The mean loss variance (LV) was (8.43±2.11) dB.All the patients were performed cryotherapy and sub-choroidal fluid drain out.The mean follow up was 12.4 months (from 6 to 24 months).At two weeks,1,3,6,12 months after surgery,the changes of BCVA,visual fields,retinal morphology and subretinal fluid were observed.Results Indirect ophthalmoscope combined with B scan showed the time of retinal reattachment was (7.32±2.53) days.Subretinal fluid was found completely absorbed by OCT with a mean of (7.82±3.52) months.At 12 months after surgery,subretinal fluid was completely absorbed in 37 eyes (88.10％).In these 37 eyes,15 eyes had normal retinal microstructure,5 eyes had neuroepithelial cystoid edema; 12 eyes had disrupted inner segment/outer segment (IS/OS) junction,and 5 eyes had disrupted IS/ OS and external limiting membrane (ELM).BCVA at 6 months after surgery was no significant difference with that at 12 months after surgery (t=-0.636,P=0.529).At 12 months after surgery,there were4 retinal patterns on OCT examination,including normal retinal microstructure,neuroepithelial cystoid edema,IS/OS line disruption,and IS/OS and ELM disruption.The BCVA difference among these 4 groups was significant (F =52.42,P ＜ 0.05).The BCVA difference between eyes with or without residual subretinal fluid was significant (t=-5.747,P=0.000).At 1,2 weeks and 1,3,6,12 months after surgery,the MDwere (11.38±2.53),(10.14±2.19),(9.17±2.13),(6.63±1.70),(5.71±1.89),(5.14± 1.69) dB respectively,with a significant difference between these time-points (F=63.528,P =0.00).However,the MD at 6 months after surgery was no significant difference with that at 12 months after surgery (t=1.442,P=0.157).At 12 months after surgery,there were 12 eyes with normal MD,30eyes with higher MD.There was no significant difference between surgery eyes with higher MD and fellow eyes in MD (t =-1.936,P =0.06).The MD value was positively correlated to the time of retinal detachment in patients with normal retinal microstructure (r=0.84,P =0.00).There were differences in LV during different periods after surgery (F=57.25,P =0.00).Conclusions The retinal microstructure,visual acuity,visual fields were gradually improved after scleral bulking.The patients had better vision with normal retinal microstructure.The time of retinal detachment positively correlated with visual fields damage.

Objective This clinical research will compare the constitution of patients with positive and negative family history in order to study on the relation between TCM constitution and the familial hereditary in type 2 diabetes patients.Methods The data of family history,general conditions,Chinese medical constitutional types of 231 type 2 DM patients in Dongzhimen Hospital were collected and analyzed.Results Among patients with family history,the number of patients' mothers with diabetes was significantly more than that of fathers'(x2=22.319,P＜0.05).There was a positive correlation between phlegm-dampness constitution r=0.215,blood stagnant constitution r=0.268 and female patients' family history(P＜0.01).And there was a positive correlation between the familial hereditary of DM and the familial hereditary of hypertension r=0.328,hyperlipidemia r=0.223,obesity r=0.151 and coronary artery diseases r=0.215.Conclusion Among type 2 DM,female had stronger familial hereditary.It indicated that diabetic mothers had a stronger influence on following generations than diabetic fathers,especially those female patients of phlegm-dampness constitution or blood stagnant constitution.There was inner correlation between the familial hereditary of DM and the familial hereditary of hypertension,hyperlipidemia,obesity and coronary artery disease.

AIM: To investigate the details of age-related changes of T lymphocytes in order to seek for sensitive biomarker for immunosenesence. METHODS: Heparin anticoagulated venous blood was collected freshly from young (20-35 years) and elderly (50-75 years) volunteers and three or four color immunofluorescence staining was performed. The nucleated cells were acquired and the phenotypes of T lymphocyte subpopulations were analyzed with flow cytometry. RESULTS: There was no significant difference in percentages of pan-T (CD3 +), helper T (CD4 +) and cytotoxic (CD8 +) T subsets between young and elderly, whereas the density of CD3 molecule (MFI) on T cells in elderly group decreased significantly. It was also found that the rates of CD44 + and CD62L + T cell subsets in young group did not have statistical difference from elderly. However,the rates of CD95 + pan-T, helper T and cytotoxic T subsets of elderly group were all markedly higher than that in young group. CONCLUSIONS: The relative rates of T cell and its subsets displayed no age-related changes while the density of CD3 was down-regulated during aging in these groups investigated. Moreover, the expression percentage of CD95 (Fas) on T cells increased as aging, suggesting that it is a potential biomarker for evaluating immunosenescence.

Objective:To develop the mechanistic model for the reorientation of T cell receptors during immunological synapse formation.Methods:Based on the theory of energy transfer during double-molecular reactions in the context of classical fluid mechanics,a vortex-driven model was proposed where in the coupled receptor/ligand molecules within the immunological synapse recruit the T cell receptors.Results:The model results indicated that driven by the consecutive vortexes with specific combinations of strengths and acting frequencies of vortexes,TCR transport speed can reach the values matching up to the experimental measurements(0.04-0.1 ?m/s).Conclusion:The model demonstrated that during the coupling,the membrane-tethered receptor-ligand pairs may transform their binding energies into the rotational energies of the reactants,thereby leading to the vortexes of the surrounding water continuum insider and outside the T cell,and these resulting vortexes may function as the engines for the reorientation of T cell receptors.

AIM:To investigate the effects of uric acid sodium salt (UANa) as adjuvant on humoral and cellular immune response in BALB/c mice. METHODS:BALB/c mice were immunized with trichosanthin (TCS) as antigen together with UANa suspension as adjuvant. The antibody titers of IgG were detected by enzyme-linked immunosorbent assay. Dendritic cells (DC) were induced in vitro,the phenotypes of DC were analyzed by flow cytometry and the effect of UANa on DC maturity was evaluated. A delayed-type hypersensitivity (DTH) model was used to analyze the effect of UANa on cellular immune responses in vivo. The in vitro proliferation of lymphocytes was determined by ConA stimulation. RESULTS:Freund's adjuvant greatly enhanced the antibody response of mice to TCS,while UANa adjuvant failed to promote the antibody response but significantly reduced the antibody response as compared to TCS only. No effect of UANa on the expression of CD11c and CD83 in DC was observed by flow cytometry analysis. However,UANa significantly enhanced the expression of MHC II molecule. In the DTH model,UANa enhanced the degree of allergen-induced ear swelling and promoted the ability of lymphocyte proliferation in vitro. CONCLUSION:UANa suspension as adjuvant significantly enhances the cellular immune response but inhibits the humoral immune response to a certain degree,suggesting that UANa has potential application in the vaccine research.

Objective To observe the effect of different concentration netrin-1 on retinal vascular permeability in diabetes mellitus (DM) rats.Methods Eighty adult Sprague-Dawley rats were randomly divided into 8 groups,10 rats in each group,including normal control group (group A),normal+balanced salt solution (BSS) group (group B),normal+netrin-1 (500 μg/ml) group (group C) and DM group (50 rats in 5 subgroups).DM rats were induced by intraperitoneal injection of streptozocin.Three months after intraperitoneal injection,10 DM rats in the control group were injected with BSS (group D).Forty DM rats were injected with 5 μl of different concentrate netrin-1,and were divided into DM+netrin-1 10 μg/ml group (group E),DM+netrin-1 50 μg/ml group (group F),DM+netrin-1 100 μg/ml group (group G),DM+netrin-1 500 μg/ml group (group H)according to the different concentration.Non-DM rats in group C were injected with netrin-1 500 μg/ml.The expression of occludin was determined by immunohistochemistry for protein,and by real-time fluorescence quantitative reverse transcription polymerase chain reaction for mRNA level.Retinal vascular permeability was measured by Evans blue infusion.Results The expression of occludin protein and mRNA in group D were less than group A (t=27.71,8.59;P=0.00,0.00).However,the retinal vascular permeability increased in group D (t=-42.72,P=0.00).The expression of occluding protein,occludin mRNA and retinal vascular permeability showed significant differences between group D,E,F,G and H (F=146.31,16.54,67.77;P=0.00,0.00,0.00).Compared the group B with group C,there was no significant differences between the expression of occludin protein,occludin mRNA and the retinal vascular permeability (t=-1.13,0.93,1.04;P=0.27,0.36,0.31).The concentrate of netrin-1 showed a significant positive correlation to the expression level of occludin and occludin mRNA (r=0.73,0.81;P=0.00,0.00),but negative correlation to the vascular permeability (r=-0.61,P=0.00).Conclusion Netrin-1 can reduce the DM rats' retinal vascular permeability,which depended on the concentration of netrin-1.

Objective o observe the expression of Notch1 and Delta-like ligand 4 (Dll4) on the fibrovascular membranes in proliferative diabetic retinopathy (PDR),and investigate its relationship with vascular endothelial growth factor receptor 2 (VEGFR2).Methods Fifty-seven PDR patients (60 eyes) who underwent vitrectomy were enrolled in this study.The PDR patients were divided into non-injection group (30 patients,32 eyes) and injection group (27 patients,28 eyes).The eyes in injection group received intravitreal injection with ranibizumab at 2 to 7 days before surgery.The preretinal fibrovascular membranes were obtained from the PDR patients during vitrectomy.Eighteen epiretinal membranes were obtained from the non-diabetic patients was served as controls.The real-time polymerase chain reaction (RT-PCR) and immunohistochemical methods were used to detecting the expression ofNotch1,Dll4 and VEGFR2.In the meantime,the numbers of the nucleus of vascular endothelial cells in the membranes stained with hematoxylin were counted.Results The immunohistochemical staining revealed that there were positive expression ofNotch1,Dll4 and VEGFR2 in all PDR membranes,regardless of the injection of the ranibizumab.The levels ofNotch1,Dll4 and VEGFR2 protein in non-injection group were higher than those of injection group (t=3.45,6.01,4.08;P=0.030,0.008,0.023).In injection group,the number of endothelial cells in the membranes reduced (17.17 ± 2.48) compared with that of the non-injection group (41.50± 5.57).There was significant difference in the number of endothelial cells in the membranes between the two groups (t=9.58,P＜0.05).RT-PCR showed that the differences of the mRNA expression ofNotch1,Dll4 and VEGFR2 were all statistically significant among the PDR group and control group (H=12.50,12.50,12.02;P＜0.05).The expression ofNotch1,Dll4 and VEGFR2 in the PDR membranes was higher than that of epiretinal membranes from non-diabetic patients.In the PDR group,the expression of Notch1,Dll4 and VEGFR2 of non-injection group was higher than that of injection group.Spearman correlation analysis showed that the expression of mRNA between VEGFR2 and Dll4 (r=0.83),VEGFR2 and Notch1 (r=0.81),Notch1 and Dll4 (r=0.87) were all significantly correlated (P＜0.05).Conclusions The expression of Notch1 and Dll4 in the PDR membranes are higher than that of the control group,and it is positively correlated with the expression of the VEGFR2.Notchl and Dll4 play a regulatory rule in the neovascularization in PDR,the acting way may be correlated with VEGFR2.

AIM: This study aimed at investigating the effects and mechanism of total alkaloids from Rhizoma Coptidis (TA) on ethanol-induced gastric mucosal injury in rats. METHODS: The experimental gastric damages were established by intragastric ethanol, and the protective effects of TA were evaluated by calculating lesion indices contents and superoxide dismutase (SOD) activity from rat gastric mucosa were measured to explore the interrelation between therapeutic effects of TA and these factors. The expressions of neuronal nitrogen monoxide synthase (nNOS), endothelial NOS (eNOS), and inducible NOS (iNOS)from ethanol-damaged gastric mucosa in rats were analysised using immunohistochemical method. RESULTS: TA significantly inhibited the gastric injury induced by ethanol ,in dose-dependent manner,and the effect of TA was superior to that of Berberine (Ber). TA obviously antric mucosa. TA significantly suppressed ethanol-induced decreasing nNOS and eNOS expression and elevation of iNOS expression in rat gastric mucosa. CONCLUSION: Rhizoma Coptidis is a potent candidate in therapeutic drugs of human alcohol-induced gastric injury. Its anti-injury effects involve in Ber and other ingredients of TA. The protective mechanisms of TA involve in inhibiting generation of oxygen-derived free radical, accelerating scavenging of free radicals, relieving lipid peroxidation, and maintaining NO content in normal level by inhibiting decreasing of nNOS and eNOS expression and elevation of iNOS expression.