Objective: To build an extraction method of coumarins from Radix Angelicae Dahuricae. Methods: The solvent varieties, polarities, and extraction methods were systematically studied by TLC with imperatorin as marker.Results: The more effective way to extract coumarins from Radix Angelicae Dahurica was refluent extraction with 4 times amount of 95% alcohol twice (one hour each time).Conclusion: The Solvent varieties and extraction method showed greater effects than others on the extraction efficiency of imperatorin.

Objective:To study the mutation frequencies of the exon 5 and the exon 8 of PTEN (phosphatase and tensin homology deleted on chromosome ten) gene in gastric carcinoma and investigate the relationship of the gene mutation and pathological differentiation and clinical stage.Methods:The mutation of exon 5 and exon 8 of PTEN gene was detected in 42 gastric carcinoma samples and the matched adjacent normal gastric mucosa with polymerase chain reaction-single strand conformation polymorphism(PCR-SSCP) method.The PCR products of mutant samples were analysed by DNA sequencing technique.Results:The mutation of PTEN was shown in 3 of the 42 gastric carcinoma tissues and in none of the adjacent normal tissues.The mutation rates of PTEN gene in poorly differentiated and well differentiated samples were 12.00% and 0,respectively (P0.05).The mutation rates of PTEN gene in clinical stage Ⅰand Ⅱ (5.88%) had no significant difference with that in clinical stage Ⅲand Ⅳ (8.00%) (P0.05).Conclusion:PTEN gene mutation occurs mainly in poorly differentiated gastric carcinoma tissues,and the mutation rate is not related to pathological differentiation and clinical stage.

ObjectiveTo observe the effe ct of varnish“Fangyouling” preventing skin invasion from Schist osoma cercariae. MethodsThe“Fangyouling” was made from niclo s amide and permeable improver, and the concentration of the drug was 1%-2%. Exper imenta l mice and rabbits were spread with “Fangyouling” on the abdomen skin without h air at day 1,2,3,4,5,6,7 respectively before infection, compaired with cont rol group. ResultsThe worm reduction rates of mice which were spread with drug 1-4 days and 5-7 days before infection were 100 % and 99 7%-88 1%. The worm reduction rates of rabbits which were spread with dr ug 3-7 days before infection were 86 4%-80 1%. ConclusionThe“Fangyouling” has long efficiency on preventing Schistosoma cercariae from invading skin.

Objective To study the effect o f levamisole against the invasion of Schistosoma japonicum cercariae. Methods Mice infected wit h Schistosoma cercariae were administered orally with levamisole hydrochloride or alkali levamisole two days before the infectio n at a dose of 26.25 mg/kg for 7 days. The liniments of levamisole hydrochlorid e and alkali levamisole were embrocated on the mouse skin two days, one day and 0 day before the infection respectively, and the concentrations of the drug were 1%, 2%, 3%, 5% and 7% respectively. The experimental animals were dissected 4 we eks after the treatment and adult worms were collected. Results The worm reduction rates of mice administered orally with leva misole hydrochloride or alkali levamisole were both 0. The worm reduction rates were both 100% when the mice were embrocated with 5% levamisole hydrochloride on the infection day or with 7% levamisole hydrochloride one day before the infect ion. The worm reduction rates were all 100% when the mice were embrocated with 2 %, 3% or 5% alkali levamisole one day before the infection. Conc lusions Levamisole liniments can prevent from S . japonicum cercaria infection, and alkali levamisole is better th an levamisole hydrochloride. When levamisole is given orally, no effect was show n.

Objective: To build an extraction method of ferulic acid from Ligusticum Chuanxiong Hort.Methods: The solvent varieties, polarities, and extraction methods were systematically studied by HPLC with ferulic acid as marker.Results: The more effective way to extract ferulic acid from Ligusticum Chuanxiong Hort was effluent extraction with 8 times amount of 40% alcohol under reflux for three hours.Conclusion: The solvent varieties and extraction method showed greater effects than others on the extraction efficiency of ferulic acid.

Ferulof en ( FL, 45mg and 200mg/kg im ) showed marked antipyretic effect on rabbit fever induced by typho-paratyhoid vaccine and on rat fever induced by yeast powder suspension respectively. Their potency and action phase were similar to those of aspirin ( 35mg and 100mg/kg) . Furthermore, it blocked the action potential of sciatic nerve in toad to some extent and had a certain local anesthetic effect on guinea pigs in intradermic wheal test, but much weaker than procaine and lidocaine at the same concentration. It had no obvious influence on corneal reflex in rabbits.It can be concluded from these findings that together with the results of previous paper the findings of this paper further indicated FL may be proved to be a new antiinflammatory, antipyretic and analgesic drug.

To investigate the diagnosis and surgical treatment of inraspinal tumors.
The clinical data of 246 patients with inraspinal tumors who had undergone operations in the Affiliated Hospital of Qingdao University Medical Col ege between January 2010 and January 2013 were retrospectively analyzed. The treatment and prognosis of inraspinal tumors were reviewed.
262 operations were performed, with posterior bilateral laminectomy approach in 202 cases, semi-laminectomy approach in 28 cases, laminoplasty approach in 10 cases, and lateral resection of extra-vertebral canal dumbbel shaped tumors in 22 cases. The short-term remission rate of the nerve root pain reached 95.0%(133/140), and the improvement rates of the sensory disability, motor disturbance, and sphincter dysfunction were 85.6%(125/146), 86.7%( 136/157), and 84.6(11/13) respectively. The ASIA nervous function scores and grades at the last fol ow-up were significantly superior to those before and 3 months after the operation in 236 patients.
Intraspinal tumors are mostly benign. The clinical appearance of them should be watched closely, and thorough physical check-up should be performed. MRI is the examination of choice at early diagnosis. The key to improve the treatment effects is to perform operations as soon as possible.

Objective To investigate the association between the glycated albumin to glycated hemoglobin (GA/A1c) ratio and carotid plaque. Methods Type 2 diabetic (T2DM) patients in endocrine inpatient department of Sichuan Provincial People′s Hospital were chosen whose clinical data were collected. Results Of the recruited 154 T2DM patients , GA/HbA1c ratio was negatively correlated with BMI , blood uric acid and was positively correlated with age, HCY, FBG, PBG, left carotid IMT and right carotid IMT. In terms of carotid plaque, GA, GA/HbA1c ratio and HCY were higher in carotid plaque positive patients than those without carotid plaque. The results of logistic regression analysis showed that GA/HbA1c ratio was significantly associated with the presence of carotid plaque (P=0.008). Conclusions GA/HbA1c ratio was positively correlated with the presence of carotid artery IMT in T2DM This suggests that GA/HbA1c ratio will serve as a useful clinical marker for predicting diabetic cardiovascular complications.

ABSTRACT:In order to explore the spatial clustering and influential factors of HFMD in Chongqing ,China from 2008 to 2012 ,spatial autocorrelation and spatial regression analysis (using the spatial lag model in this study ) were carried out using the HFMD data of 38 districts (counties) from 2008-2012 in Chongqing by OpenGeoDa ,and the HFMD case‐based data was collected from the Disease Supervision Information Management System of Chongqing Center for Disease Control and Preven‐tion .We found that the global Moran’s I coefficient of Chongqing from 2009 to 2012 was 0 .458 7 ,0 .567 5 ,0 .398 6 ,and 0 .606 0(P<0 .01) ,respectively ,indicating that the incidence of HFMD in Chongqing had a positive spatial correlation in this four years and a spatial clustering distribution was displayed .However ,no global spatial autocorrelation was founded in 2008 and the global Moran’s I coefficient was 0 .133 2 (P>0 .05) .Results of multi‐factor spatial lag regression analysis demonstra‐ted that the incidence of HFMD was positively related with urban rate (β=1 .667 6 , P=0 .001 6) ,and negatively correlated with medical technical personnel per thousand (β= -0 .000 2 ,P=0 .019 8) .In general ,the incidence of HFMD was found ge‐ographically clustered in Chongqing from 2009 to 2012 which was significantly influenced by urban rate and medical technical personnel per thousand population ,and while the urban rate was the main factor .

[摘 要] 目的：分析干扰素基因刺激因子（STING）在肺腺癌中的表达及其与肺腺癌患者临床特征间的关系，探讨STING与内质网应激的相关性及其在调控肺腺癌进展中的作用机制。方法：利用TIMER数据库分析STING基因在泛癌水平的表达情况，利用UALCAN和HPA数据库分析STING在肺腺癌组织中的表达及其与肺腺癌患者临床特征间的关系，利用Kaplan-Meier生存函数分析STING表达与肺腺癌患者OS率间的关系。利用LinkedOmics数据库对肺腺癌表达谱数据进行STING基因共表达分析，对STING相关差异表达基因（DEG）进行GO功能与KEGG通路富集分析，通过GSEA筛选STING调控肺腺癌的潜在通路。使用STING激动剂diABZI及内质网应激抑制剂TUDCA对肺腺癌A549与H460细胞进行处理，通过qPCR、WB法检测STING及内质网应激相关分子的表达，通过CCK-8法检测细胞增殖活力。结果：肺腺癌组织和细胞中STING的表达水平均显著低于正常肺组织（均P<0.01），STING高表达肺腺癌患者5年OS率显著高于低表达患者（P<0.01），STING的表达与肺腺癌患者的年龄、性别等临床特征密切相关（均P<0.01）。STING高表达在肺腺癌外源性抗原处理及提呈等通路上存在富集（均P<0.01）。使用STING激动剂可显著诱导肺腺癌细胞发生内质网应激（P<0.05），STING诱导活化后肺腺癌细胞增殖活力显著下降（均P<0.01），内质网应激抑制剂能部分恢复STING活化诱导后下降的细胞活力（P<0.05）。结论：STING基因在肺腺癌中低表达，其表达下调与肺腺癌患者预后不良相关，其机制可能是STING通过诱导内质网应激而抑制肺腺癌细胞活力。