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.

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.

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.

AIM: To investigate the anti-HIV-1 activity of five anthraquinone derivatives (emodin,rhein,chrysophanol,physcion and aloe-emodin) in vitro.METHODS: Viral replication was estimated by observation of cytopathogenesis and measurement of HIV-1 p24 antigen production in HIV-1ⅢB acutely infected C8166 cells. The anti-HIV-1 activity was evaluated by the 50% effective concentrations (EC50) and selective indexes (SI) of these derivatives.RESULTS: These anthraquinone derivatives inhibited HIV-1ⅢB replication on syncytia formation induced by HIV-1ⅢB infection with EC50 mean values of (11.44±0.93)μmol/L (emodin),(51.28±2.86)μmol/L (rhein),(90.58±2.30)μmol/L (chrysophanol),(8.59±0.38)μmol/L (physcion) and (0.89±0.08)μmol/L (aloe-emodin),respectively. The p24 antigen production with EC50 mean values were (11.61±0.56)μmol/L (emodin),(12.35±4.73)μmol/L (rhein),(39.63±2.87)μmol/L (chrysophanol),>250 μmol/L (physcion) and (2.75±0.20)μmol/L (aloe-emodin) respectively. CONCLUSION: These structurally-related chemicals show different anti-HIV-1 activity in vitro. Among them,aloe-emodin is the most potent inhibitor to HIV-1 replication.

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 isolate the key domain of a novel polypeptide fragment from NGN-β that functions like intact NGF molecule.Methods: NGF-β had been treated with cyanogen bromide and trypsin skillfully. The peptide fragment with the activity inducing PC12 pheochromocytoma cells differentiation was isolated and purified by Sephadex G-50 gel filtration chromatography , DE-52 celluloseion exchange chromatography and C-18 reversed-phase column HPLC after NGF-β cleavaged by CNBr at 9th met then by trypsin at Arg or Lyscleavaged by CNBr at 9th met then by trypsin at Arg or Lys. Amino acid sequencing of this novel peptide fragment was performed by Automatic Amino Acid Analyser and Amino Acid Sequencer. Results: The functional fragment from cleavaged NGF might induce differentiation of PC12 cells. The fragment was consisting of two linear polypeptides . One of them was 16 peptide, GEFSVCDSVSVWVGDK , and other was 14 peptide, HWNSYCTTTHTFVK, linked by a disulphide bridge corresponding to residues 10～25 and 75～88, respectively, of the amino acid sequence of nerve growth factor, the result of biological activity assay in PC12 cells showed that the optimum concentration of this peptide were 0.001～0.1 μg*L-1. Conclusion: A novel peptide inducing differentiation of PC12 cell line of pheochromocytoma cells was obtained in the study. It′s isolation and purification successfully will underlie synthesis or expression of hyperactive neurotrophic small molecular substance although the relationship between the configuration and functions is not clearly.

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.

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.