Objective To investigate dynamic changes of vascular endothelial growth factor(VEGF)and endostatin(ES)in guinea.Pig of asthma and its effect on airway remodeling.Methods 40 guinea-pigs were randomly divided into normal control group(C),NS group(N),3d asthma group(A1),7d asthma group(A2)and 21d asthma group(A3),8 pigs ofeach group·Nothing was done on C Group guinea.Pigs.N group were intraperitoneal injected 2ml NS on the Ist day and the 8th day.NS inhalation started on the 15th day,1 time every day,3-5rain for each times,lasted for 3 day.Al,A2 and A3 Group were injected with 10rag ovalbumin(OVA),which made of aluminum hydroxide 20mg suspension in place of2ml NS,in place ofNS inhalation for3d,7d and 21d.At the end of24h-shot line after anesthesia BAL.Enzynle-linked immunosorbent(ELISA)was used to determine the concentration of VEGF and ES in bronchoalveolar lavnge fluid collection(BALF).Image analysis was used to determine airway circumference(Pi),outer circumference(Pe),and calculate the wall area(WA),airway smooth muscle area(SMC-A),airway smooth muscle cells(N).WA,SMC-A and N were standardized by Pi.Results With the extension of the duration of asthmatic guinea.Pigs,WA/Pi,SMC-A/Pi,N/Pi and concentration of VEGF in the airway were increased.Compared with group C and N,SMC-A/Pi,N/Pi and concentration of VEGF in asthma group were siguitlcanfly different.WA/Pi were siguificanfly different in A2 group and A3 group.The relation of the concentration of VEGF in Asthma guinea-pigs airway and WA/Pi was positive correlation.VEGF/ES and WA/Pi was highly positive correlated.Conclusions VEGF/ES inlbalance may play all important role in the airway remodeling of asthmatic guinea-pigs.

Objective To investigate the roles of heavy metals in the onset of Alzheimer 's disease (AD) and vascular dementia (VaD) and to analyze the relationship between cognitive impairment and plasma heavy metal concentrations in patients with AD. Methods Fifty patients with AD, 20 with VaD, and 20 healthy controls were included in the study. According to the Clinical Dementia Rating (CDR), the AD patients were divided into mild dementia (CDR = 1 )and moderate to severe dementia (CDR = 2 to 3 ) groups. All the observational subjects performed the Mini-Mental State Examination (MMSE) score, Hachinski ischemic index score,and CDR score. A fasting venous blood sample was taken from all the subjects for detection of the heavy metal (Tu, Ca, Fe, Me, Zn, Hg, Cr, Co, Se, and Pb) concentrations at the same time.Results Compared to the control group, the plasma Cu concentration in the mild dementia and moderate to severe dementia groups increased significantly (0. 66 ± 0. 2 1, 0. 84 ± 1.11, and 0. 85 ± 1.12 ng/g, respectively (P ＜ 0. 05). There was no significant difference between the mild AD group and the moderate to severe dementia group. The Pb concentration in the control group was significantly lower than that in the moderate to severe dementia group (22.79 ±3.94 ng/gvs. 40. 82 ± 16.96 ng/g, P ＜ 0. 05 ). While there were no significant differences between the control and the mild dementia and moderate to severe dementia groups. The plasma Cu concentration (0.84 ± 1.25 ng/g vs. 0. 66 ± 0.21 ng/g, P ＜＜ 0. 05) and Pb concentration (32.42 ± 14. 12 ng/gvs. 22.79 ± 3.94 ng/g, P ＜ 0. 05) in the AD group were significantly higher than that in the control group. While there was no significant difference between the VaD group and the control group for metal concentrations. There was also no significant difference for metal concentrations hetween the VaD group and the AD group. Conclusions Some heavy metals, such as Cu and Pb might have participated in the pathogenic process of AD, but the heavy metal concentrations did not have close relationship with the onset of VaD. There was no significant correlation between the degree of cognitive impairment and the plasma metal concentrations in patients with AD.

Objective To explore cognitive change in schizophrenic patients with concomitant metabolism syndrome,and to provide theory basis for early intervention and treatment.Methods According to inclusion standard,56 schizophrenic inpatients with metabolism syndrome and 56 schizophrenic inpatients without metabolism syndrome were included.The matrics consensus cognitive battery(MCCB),stroop test,digit span,UPSA-B were used to assess the cognitive function.Results There were significant differences for test scores of symbol coding subtest,verbal memory subtest,digit sequence subtest,Maze subtest,continue performance among MCCB between schizophrenic patients with and without metabolism syndrome(27.07±10.46 vs 32.18±12.12,16.04±5.07 vs18.71±6.02,13.39±5.18 vs 15.79±5.48,1.38±0.66 vs 1.7±0.68,all P＜0.05),as well as stroop test and digit span test(31.14±11.68 vs 36.57±13.32,13.77±3.64 vs 15.82±4.38,P＜0.05 for both).Conclusion The schizophrenic patients with metabolism syndrome have severer cognitive impairment than those without metabolism syndrome.