0.05 as compared with those in the healthy): RI and PI decreased in the sequence of follicular phase,early luteal phase and middle luteal phase,and then rose up in the late luteal phase(P

Objective To explore the rules of early pregnancy related hormone changes in different pregnancy outcomes.Methods Three hundred and fourteen women at early pregnancy women were selected as our subjects.And they were followed up until 3 months of gestation.chemiluminescence analysis was used to test serum human chorionic gonadotropin (β-HCG),progesterone,estradiol and testosterone levels all pregnant women.According to the pregnancy outcome,clinical symptom and body mass index,all subjects were divided into normal and abnormal group.Results Among 314 cases of early pregnancy women,the normal pregnancy group was 53.18％ (167/314) and the abnormal pregnancy were 46.82％ (147/314).While in abnormal pregnancy group,women with the threatened abortion and continues pregnancy were 102 cases(69.39％),with inevitable abortion group were 29 cases (19.73％),and with embryos diapauses were 16 cases (10.88％).Serum estradiol level of cases in normal pregnancy group was (3104.6 ± 1507.1) pmol/L,higher than that in threatened abortion and continues pregnancy,threatened abortion group and inevitable abortion group((2 361.0 ±1 057.9) pmol/L,(1 250.0 ±624.5) pmol/L,(1 465.7 ±724.4) pmol/L)),and the differences were statistically significant(P ＜ 0.05).In normal pregnancy group,the level of serum β-HCG,estradiol and testosterone were positively correlated with gestational age (r =0.57,0.62 and 0.24 ; P ＜ 0.05).However,progesterone levels had no correlation with gestational age (r =0.15,P =0.06).Conclusion Dynamic detection of early pregnancy can guide clinicians to colytic therapy.

Objective:To explore the relation of cognitive function correlates to P50 sensory gating in patients with schizophrenia.Methods:Totally 106 patients with drug-na¨ive first-episode schizophrenia and 86 healthy con-trol subjects matched for age,sex and education were recruited.All patients met the Diagnostic and Statistical Man-ual of Mental Disorders,Fourth Edition (DSM-IV)criteria for schizophrenia.Their cognitive function were assessed with the MATRICS Consensus Cognitive Battery (MCCB).The P50 auditory gating potential were recorded in all subjects using conditioning-testing stimulus paradigm and stimulus train paradigm.The P50 components were meas-ured in S1 S2 latency,S1 S2 amplitude and P50 suppression ratios.Results:Compared with the controls subjects, the patients with schizophrenia had significantly longer S1[60.8 ±7.8)ms vs.(56.3 ±7.0)ms,P <0.05]S2 la-tency [(59.1 ±10.2)ms vs.(55.7 ±10.7)ms,P <0.05],lower S1 amplitude [(2.8 ±1.8)μV vs.(3.5 ±1.6)μV,P <0.05],less amplitude difference (S1-S2)[(1.5 ±1.8)μV vs.(2.2 ±1.4)μV,P <0.05]and higher P50 suppression ratios (S2 /S1 )[(59.7 ±65.6)vs.(37.6 ±30.0),P <0.05].Schizophrenia patients had lower score than control subjects in all cognitive domains of MCCB (Ps <0.05).No differences in neurocognitive performance were found between subjects in the normal P50 ratio and the abnormal in healthy controls or patients with schizo-phrenia (Ps >0.05).No significant correlation was found between P50 gating measures (P50 ratio and P50 ampli-tude difference)and neuropsychological measures in MCCB scores (Ps >0.05).Conclusion:There may be no as-sociation between P50 deficits and cognitive measures in patients with drug-na¨ive first-episode schizophrenia.

Objective To evaluate the clinical efficacy of monosegmental pedicle instrumentation in management of thoracolumbar burst fractures. Methods A total of 67 patients with traumatic thora-columbar burst fractures (type A3.1 and A3.2) were treated with monosegmental pedicle instrumentation in our department from October 2003 to February 2008. Imageologic effect was observed by measuring sagittal index and wedge index via X-ray and clinical outcomes evaluated by using low back outcome score. Results All operations were performed successfully, with average operation duration of 93 mi-nutes and average intraoperative blood loss of 157 ml. Of all, 65 patients were followed up for 4-27 months (average 19.8 months), which showed that all the patients achieved bony fusion, with no implant failure except for one with screw loosening. The sagittal index and wedge index were 13.06°and 42.9% preoperatively and 4.47° and 21.78% postoperatively, with statistical difference (P <0.01). The final follow-up showed no significant correction loss except for two patients (P < 0.05). The low back outcome scores of all patients at follow-up were improved significantly (P < 0.05). Conclusions Monoseg-mental pedicle instrumentation has advantages of minimal invasion, short operative duration, less blood loss and less vertebral motion segment loss and hence is an effective and reliable operative technique for thoracolumbar burst fractures.

Objective:To explore the causes of the maintenance of smoking behaviors in male patient with chronic schizophrenia.Methods:Totally 188 male,smoking patients with chronic schizophrenia,meeting with the criteria of Diagnostic and Statistical Manual of Mental Disorders,Fourth Edition (DSM-IV),above 5-year course of disease,taken a steady dosage of antipsychotics for 3 months,and 61 healthy smoking men were collected according to the voluntary principles.The psychopathologic symptoms and the dependence of cigarette of all patients were as-
sessed with the Positive and Negative Syndrome Scale (PANSS)and the Fagerstrom Test for Nicotine Dependence (FTND),the Russell's Smoking Motivation Questionnaire (SMQ)was used to investigate the causes for maintai-ning behaviors of smoking in patients and healthy controls respectively.Results:The sedative item scores of SMQ were lower in patient group than in the controls [3 (0,9)vs.6 (0,9),P <0.001],and other scores of subscales had no significant difference compared with control.Heavy dependence happened in patient group slightly less than health controls (2.7%vs.8.2%,P <0.05).The total scores of FTND were positively correlated with the doses of antipsychotics (chlorpromazine equivalent)(r =0.22,P <0.01).The scores of total (β=0.22),automatic (β=0.27)and sedative (β=0.37)items in patient group were less than controls (Ps <0.001)by multi-factors step-wise Linear regression analysis.Conclusion:Compared with general smokers,lower need for sedation,less heavy dependence and motivation in smoking patients might be correlated with the strict management for inpatients smok-ing,social-psychological factors and culture background in China.

Objective To evaluate cognitive impairment and performance-based skills and to explore their rela?tionships with clinical phenotypes in drug-na?ve first-episode patients with schizophrenia. Methods One hundred and forty-five inpatients and 65 healthy controls matched for age, gender and education were recruited. The MATRICS Con?sensus Cognitive Battery (MCCB), Stroop, digit span test, emotional recognition test, University of California, San Diego, Performance-based Skill Assessment (UPSA) and Positive Negative Syndrome Scale scale (PANSS) were used to evaluate cognitive function, life skill and symptoms, respectively. Results Compared with the controls, total score of MCCB and scores of 10 subscales, scores of digit span, emotional recognition and Stroop were significantly lower in patients (all P<0.05). The UPSA total score and scores of financial skill and communication skill were lower in patients than in controls (all P<0.05). Verbal memory, visual memory , Stroop, communication skill scores and total UPSA standard score were sig?nificantly higher in patients with paranoid subtype of schizophrenia than in patients with non-paranoid subtype of schizo? phrenia (all P<0.05). The score of MCCB associated with education years (OR=1.29, 95%CI: 1.13~1.47) and PANSS (OR=0.95, 95%CI:0.92~0.97). Conclusions First-episode, drug-naive patients with schizophrenia have markedly cog?nitive and performance-based skills deficits, which are associated with clinical symptoms. These deficits are differences between paranoid subtype and non-paranoid subtype of schizophrenia.

Objective To establish a paper-based surface-enhanced Raman scattering (SERS) method for the detection of dyed K adsura longipedunculata Finet et Gagnep .Methods Supported silver nanoparticles on filter paper were synthesized simply by soaking method .In addition ,factors including enrichment ratio of silver nanoparticles ,the enhancement effect and sta-bility of the SERS device were investigated .Results The K adsura longipedunculata Finet et Gagnep ,dyed by Erythrosine or Acid Red at low concentration had been detected successfully .Conclusion Combined with the paper device and SERS ,the ap-proach was rapid and non-destructive which could be used to identification of dyed K adsura longipedunculata Finet et Gagnep .

Objective:To explore the effect of attentional bias training on the attentional bias, psychological craving and relapse rate of alcohol dependent patients during rehabilitation.Methods:A randomized controlled trial was used to select 90 alcohol-dependent patients and randomly divide them into an intervention group and a control group. The alcohol cue pictures and neutral pictures were imported into E-Prime software at a ratio of 1∶1.The patients in the two groups were trained for eight times with attentional bias and without attentional bias by point delection paradigm. After each training, the software automatically records the response time and correct rate of the cue pictures and neutral pictures, and before intervention(T0), after 4 interventions(T4), and after 8 interventions(T8), the alcohol craving score was assessed by visual analogue scale and the relapse situation was followed up 1 month after the intervention. SPSS 24.0 software was used for statistical analysis.Repeat measure ANOVA, χ2 test and t-test were used to compare the response time, accuracy and psychological craving of the two groups. Results:Repeated measurement analysis of variance showed that there were interaction between group and time in cue-map response time, line chart accuracy and psychological craving score of the two groups ( F=5.218, 6.939, 147.14, all P<0.01). Simple effect analysis showed that there was no significant difference in cue pictures response time, cue pictures accuracy and psychological craving score between the intervention group and the control group at T0(all P>0.05), but there was significant difference at T4 and T8 (all P<0.05), and there was significant difference in neutral pictures reaction only at T8 ( P<0.05). The comparison between two groups showed that the intervention group showed a downward trend in cue pictures response, T4 and T8 were lower than T0, with statistical difference (both P<0.001), while there was no difference in the control group. In the intervention group, the correct rate of cue pictures increased, T4 and T8 were higher than T0, and there were statistical differences (both P<0.001), while there was no difference in the control group( P>0.05). The psychological craving scores of both the intervention group and the control group showed a downward trend, T4 and T8 were lower than T0, there were statistical differences (both P<0.001), but the difference between T4 and T8 in the control group remained unchanged. One month after the end of the intervention, the difference in the rate of relapse between the intervention group and the control group was marginal (11.10%, 26.70%, P=0.059). The total number of days of abstinence in the intervention group was longer than that in the control group ((28.33±4.99)d, (26.47±6.66)d, P=0.010). Conclusion:Attentional bias training can improve the mental craving and attentional bias of alcohol-dependent patients during the rehabilitation period, and the relapse rate decreased one month after the intervention.