Objective To investigate characteristics of memory-guided saccade in Parkinson' s disease (PD),and to evaluate the application of memory-guided saccade in diagnosing PD.Methods Fiftythree subjects with early- or mid- stage PD were chosen as PD group,meanwhile,36 age-matched healthy subjects were chosen as control group.Memory-guided saccade test and event-related potential P300 were performed in all subjects,and results of the two groups were compared; furthermore,results of subgroups comprised of 29 patients with early-stage PD were analyzed.Results In comparison with control group,memory-guided saccade in PD group showed decreased velocity and primary gain,prolonged latency,extremely increased incidence of unwanted saccade and multi-step saccade ( U =124.000,37.000;both P ＜0.01 ),such abnormalities has already stood out even in subgroup comprised of early-stage PD patients.Meanwhile,latency of event-related potential P300 in PD group was prolonged compared with control group ((384.76 ± 34.48) ms vs (352.42 ± 24.99) ms,t =- 4.791,P ＜ 0.01 ).Multi-step saccade measurement demonstrated excellent sensitivity (96.2％ ) and specificity (94.4％) in the ability to discriminate PD patients from controls.Conclusion Memory-guided saccade in PD patients shows highly abnormal which may reflect the impairment of pontine saccade pathway and the dysfunction of frontal lobe.Memory-guided saccade test may be a useful examination in assisting the diagnosis of PD.

Objective To investigate the systemic effects of Helicobacter pylori (Hp) infection by comparing differential counts of leukocytes in peripheral blood and C-reactive protein (CRP) levels before and after eradication of Hp. Method A total of 158 Hp-positive patients underwent eradication by standard one-week triple therapy were divided into Hp eradicated group(n = 108) and Hp non-eradicated group(n = 50),the populations of peripheral blood leukocytes and CRP levels before and 0 (just after therapy),1 and 12 months after eradication were retrospectively analysed. Results In the eradicated group,blood leukecytes,neutrophils and monocytes decreased significantly after eradication,and the CRP levels were significantly lower than the levels before treatment (P < 0.05 ),but there was no significant change in eosinophils,basophils and lymphecytes (P > 0.05).In the non-eradicated group,there was no significant change in any studied pa-rameter (P > 0.05). Conclusion These findings suggest that Hp infection increase blood leukocytes,neu-trophil and monocyte counts in the peripheral blood and CRP levels,which indicates a significant role of Hp infection in systemic disorders.

Objective:To evaluate the promoting surgery incision healing effect of recombinant human acidic fibroblast growth fac-tor ( rh-aFGF) in the treatment of children with open fractures. Methods:A multicenter, randomized and controlled clinical trial was conducted to study the efficacy of rh-aFGF. Totally 120 cases of injured children (age<14y) were randomly divided into two groups, the treatment group (n=60) was given rh-aFGF washing during the operation and spraying after the operation, and the control group ( n=60) was treated with normal saline. Both groups were given traction, screw or Kirschner wire fixation. The healing time, healing status and delayed healing were observed and compared in the two groups. Results:Stage I healing rate, the complete healing time and delayed healing rate in the treatment group was 86. 6%, (20. 3 ± 5. 6)d and 3. 3%, respectively, while that in the control group was 56.7%, (23.4 ±6.2)d and 15.0%, respectively. The differences between the two groups were significant (P<0.05 or 0.01). Conclusion:Rh-aFGF can effectively promote wound healing and shorten the healing time. For all these positive aspects,rh-aFGF de-serves wider clinical application in postoperative rehabilitation after open fractures.