Vitamin C injections are a national essential drug with wide clinical applications and instable property. In order to pro-vide the reference for further analysis on the quality status of vitamin C injections and improve the quality,the research on the stability, quality control and analysis methods was summarized in the study.

Objective To investigate the correlations between obsessive-compulsive symptoms and autism-spectrum quotient and explore if systemizing is the mediator between them. Methods With Padua Inventory (PZ) ,AQ and Systemizing Quotient (SQ), 1901 college students were assessed with stratified random sampling survey. Results Compared with the femal students, score of systemizing in male students had a significant increase ( (26. 773 ± 9.225 )vs (22.017 ± 7 ± 934), P ＜0.01 ). AQ total score was significantly positive correlated with PI total score( r=0. 336, P＜0.01 ),and correlation was also found among SQ,AQ and PI in different degrees. the mediating effect of systemizing was significant. The regression equation was AQ = 18. 942 +0. 064PI -0. 022SQ (P ＜ 0.01 ). Conclusion There are positive correlation between obsessive-compulsive symptoms and AQ in college students, and systemizing is the mediator between above symptoms.

Objective To observe the latency and amplitude characteristics of event-related potential P300 under different target stimu-lus. Methods During January to December, 2014, 35 patients with memory impairment received P300 test under the percentage of target stimuli of 0.10 and 0.25. The latency, amplitude and area under amplitude were compared. Results There was no significant difference in la-tency (t<0.256, P>0.800), but the amplitude and area under amplitude increased under 0.10 compared with those under 0.25 (t>4.259, P<0.05). Conclusion Less target stimulation may improve the patients' attention and increase amplitude of P300, but no more interference in la-tency, suggesting latency of P300 is more stable for assessment of cognitive function.

0.05). Conclusion Tangkening may be another therapy choice of Diabetes.

Objective To investigate the effects of safflor yellow (SY) injection on acute lung injury (ALI) rats induced by oleic acid (OA) and its potential mechanism. Methods Wistar rats were randomly divided into six groups,including control group,OA group,OA+10 mg/kg anisodamine group,OA+8 mg/kg SY group,OA+16 mg/kg SY group,and OA+32 mg/kg SY group. Normal saline or anisodamine or SY were pretreated before 0.18 g/kg OA iv injection. The arterial partial pressure of oxygen,the pulmonary water content index,and MPO activity in lung tissue were determined; The mRNA level of TNF-?,IL-1?,IL-6,ICAM-1,and VCAM-1 were measured by RT-PCR; And NF-?B p65 protein in nucleus observed by immunohistochemical technology,while the level of p38 MAPK protein phosphorylation in lung tissue was analyzed by Western blotting. Results The arterial partial pressure of oxygen in all SY groups was higher than that in OA group,while the pulmonary water content index and MPO activity were lower than those in OA group,as well as the mRNA level of the above inflammatory cytokines and the NF-?B p65 in nucleus and level of p38 MAPK phosphorylation. Conclusion SY could alleviate the lung tissue edema,increase the arterial partial pressure of oxygen,and depress MPO activity in ALI rat induced by OA. The SY mechanism of attenuating the acute lung injury may be associated with inhibiting the p38 phosphorylation and NF-?B activation and reducing inflammatory factors expression.

0.05).Conclusion Tripterygium wilfordii,combined with routine treatment,appeared to decrease 24-hour proteinuria in a certain extent and did not adversely affect liver function,renal function and the blood routine test in most patients with diabetic nephropathy.

To explore necessity on the preliminary scientific research quality training and ability cultivation in the clinical medicine undergraduate stage,and the experience and effect of starting paper writing training curriculum for clinical medicine undergraduate students.

Objective To investigate the correlation of serum periostin and severe degree of dilated cardiomyopathy(DCM) in children.Methods Thirty-two children with DCM from Jan.2009 to Jun.2013 in First Hospital Affiliated to Jilin University were selected as DCM group.Then these children were divided into 0-2 score group (n =6),3-6 score group (n =7),7-9 score group (n =11),and 10-12 score group (n =8) according to Ross standardization.Twenty healthy children in the same period were selected as control group.Meanwhile,the levels of serum periostin were detected by using enzyme-linked immunosorbent assay,the levels of serum creatine kinase-MB(CK-MB)were detected by adopting immunosuppressive method,while left ventricular ejection fraction (LVEF) and left ventricular end-diastolic diameter (LVEDD) were observed by using uhrasonography.The data in various groups were compared and the relationship between serum periostin and ROSS,LVEF was analyzed by performing linear regression analysis.Results 1.Compared with control group,the level of serum periostin in DCM group was significantly increased,and the difference was significant (P =0.00).The serum periostin level increased with the increase of ROSS score increase,and there were significant differences among the different ROSS score groups (all P ＜ 0.05).2.Compared with control group,the level of serum CK-MB in DCM group was significantly increased,the difference was significant (P =0.00) ;while the serum CK-MB levels had no significant difference among the different ROSS score groups(all P＞0.05).3.Compared with control group,the level of LVEF in DCM group was significantly decreased,the differences was significantly(P =0.00) ; and the LVEF level decreased with the ROSS score increase,there were significant differences among the different ROSS score groups(all P ＜ 0.05).4.Compared with control group,the level of LVEDD in DCM group was significantly enlarged,and the difference was significant(P =0.00) ; but the LVEDD had no significant differences among the different ROSS score groups (all P ＞ 0.05).5.Significantly positive correlation was found between the level of serum periostin and ROSS score (r =0.742,P ＜ 0.001).There was no obvious correlation between the level of serum periostin and CK-MB(r =0.247,P ＞ 0.05).There was negative correlation between the level of serum periostin and LVEF (r =-0.424,P ＜ 0.01).Conclusions The level of serum periostin is positively correlated with ROSS score and has negative correlation with LVEF.It may provide a useful index in the assessment of symptomatic state in children with dilated cardiomyopathy.