ABSTRACT
Objective To investigate the change of the error positivity(Pe)of event-related poten-tial(ERP)under Flanker task in adolescents with smoking addiction. Method The signals of ERP during the Flanker task in fifteen adolescents with smoking addiction were compared with that of 15 non-smoking ad-olescents. Results The Pe amplitude in adolescents with smoking addiction((3.575±2.299)μV)was sig-nificantly lower than that of non-smokers((5.865 ± 4.290)μV)(F=5.324,P=0.029),and the reaction time of the Flanker task in smoking addiction adolescent group((440.754± 36.051)ms)was significantly higher than that in the control group((422.850±20.194)ms)(F=0.620,P<0.05).The Pe amplitude in ado-lescents with smoking addiction was positively correlated with smoking index(pack-years)(r=0.599,P=0.018). Conclusion The adolescents with smoking addiction may exit worse ability of error monitoring dur-ing the Flanker task.
ABSTRACT
Objective To observe the changes of electroencephalogram (EEG) signal during the resting state in adolescents with smoking addiction.Methods Spectral analysis during the resting state was used to observe and analyze the EEG signals between adolescents with smoking addiction (n=21) and nosmoking control group (n=21) by using Brain Vision Analyzer software.Results Compared with the nosmoking control group,adolescents with smoking addiction showed increased alpha band signals in 3 brain regions (including left-anterior,right-anterior and midline-anterior regions,P＜0.05),and decreased delta band signals in 3 brain regions (including right-posterior,midline-anterior and midline-posterior regions,P＜0.05).Moreover,the signals in these brain regions were positively correlated with pack-years (alpha band:left-anterior(r=0.648,P=0.003),right-anterior (r=0.629,P=0.004),midline-anterior (r=0.456,P=0.043);delta band:right-posterior (r=0.602,P =0.005),midline-anterior (r =0.533,P=0.019),midline-posterior (r=0.692,P=0.001))in adolescents with smoking addiction.Conclusion The changes of EEG signals during the resting state in adolescents with smoking addiction may be associated with cumulative effects of smoking.
ABSTRACT
Objectives To analyze the clinical features, diagnosis and treatment of Lemierre syndrome. Methods The clinical data of one case of Lemierre syndrome were retrospectively analyzed. The relevant literatures were reviewed. Results The primary infection of the patient was oral infection, and jugular vein thrombosis and metastatic lung abscess were followed. The blood culture showed that Staphylococcus aureus was positive. Lemierre syndrome was diagnosed. After anticoagulation and anti-infection treatment, the symptoms were improved. Conclusion Lemierre syndrome should be considered in present of jugular vein thrombosis and pulmonary abscess caused by infection.
ABSTRACT
Objective To disccuss the antioxidative effects of sodium ozagrel(OZG) in myocardial ischemia in rats and illuminate its effect of decreasing oxidative damage.Methods Forty healthy Wistar rats were randomly devided into five groups:control,model,pretreatment,treatment and therapeutic alliance groups.OZG was used for 2 weeks in pretreatment group,then isoprenaline hydrochloride (ISO) was applied to make myocardial ischemia model.5 min after the establishment of model,OZG and OZG combined with glyceryl trinitrate(GT) were used in treatment group and therapeutic alliance group,respectively,ECG was recorded at the same time.1 h later,the activities of serum myocardial creatases(AST,LDH,CK),malonaldehyde(MDA) level and superoxide dismutase(SOD) activity were detected.Results ECG:When the model was successfully set up,ST segment in every group all raised≥0.1 mV,the minimum value of raise was in pretreatment group.When the model was succeeded 5 min later,ST segment in model group slightly decreased but still ≥0.1 mV and it was significant in pretreatment group.In treatment and therapeutic alliance groups,compared with model succeeding'ST segment,ST segment decreased significantly at 5 min later(P