1.Determination of naphthopyrone glycosides and anthraquinone aglycone in Cassia tora L by quantitative analysis of multi-components by single marker
Xiqin WEI ; Shijie WEI ; Yanni MA
Chinese Journal of Biochemical Pharmaceutics 2016;36(4):189-192
Objective To develop a method of quantitative analysis of multi-components by single marker(QAMS) for determination of effective components of naphthopyrone glycosides and anthraquinone aglycone in Cassia tora L.Methods The separation was performed on a Sunfire C18 column (4.6 mm ×250 mm,5 μm), and column temperature 30 ℃.Aetonitrile-0.1% H3PO4 was used as the mobile phase with gradient elution.The detection wavelength was at 278 nm and 284 nm.Relative correction factor by determination of Between aurantio-obtusin and rubrofusarin-gentiobioside or chrysophanol or physcion.the method was evaluated for reproducibility, and the difference between calculated and measured values was compared. Results Rubrofusarin-gentiobioside, aurantio-obtusin, chrysophanol and physcion respectively 0.0503-1.5078, 0.3197-9.5899, 0.5070-15.2108, 0.4027-12.0814μg showed a good linear relationship, and the regression equation is Y =4.95X +2.01(R2 =0.9998),Y =1.03X +0.03(R2 =0.9999),Y=3.98X-0.12(R2 =0.9993),Y =4.81X +0.26(R2 =0.9996).The quantitative results of six batches of Cassia tora L by QAMS was basically consistent with that by external standard method.Conclusion The QAMS method was reliable and accurate, which might be used for the quality control of Cassia tora L.
2.Development of a Subject Interest Inventory for Senior High School Students
Chunzi PENG ; Shijie ZHOU ; Huixia MA
Chinese Mental Health Journal 2002;0(07):-
Objective:To develop a Subject Interest Inventory (SII) for senior high school students.Methods:The SII was structured by incorporating rational-theoretical and empirical techniques. The item functionality, scale reliability and validity were established.Results:Final version was a 90-item scale measuring student's 9 subject interests. The internal consistency and test-retest reliability were acceptable. The structure of SII was confirmed by intercorrelations among the subscales and by exploratory factor analysis. Evidence of concurrent validity was supported by: (a) the correlations between the interests and the scholastic achievements; (b) the gender differences in subject interest and in the correlations between the interests and the achievements; and (c) the different interests scores between the art students and the science students.Conclusion: These results suggest that the structure of SII is acceptable, and that its reliability and validity indexes are sound.
3.Preparation of EUS-guided radiofrequency probe and test of its functions
Shijie MA ; Guoxin ZHANG ; Ruihua SHI ; Feng GUO ; Yi MIAO
Chinese Journal of Digestive Endoscopy 2011;28(2):90-93
Objective To prepare a radiofrequency (RF) ablation probe guided by endoscopic ultrasonography (EUS) and to evaluate its efficacy and safety. Methods A modified 19-gauge needle ( Olympus) was used, which was electrically insulated with shrink tubing, with the tip of lcm naked. The insulation was tested, and the current signal was stable. Three rabbits were anesthetized with 8% chloral hydrate ( 3 ml/kg) intraperitoneally, fixed on the dissecting table. A standard neutral pad was applied to the thigh of the rabbit to complete the electrical circuit, both the pad and the needle electrode connected with RF generator. After anesthesia was ready, the needle was advanced through the gastric wall into the liver. Ablations were performed three times in the same zone. Extent and tissue lesion were measured after ablation. Results Ablation could be successfully performed by the needle electrode, with brown lesions surrounded by normal hepatic tissue. The mean diameter of the ablated zone in the liver was 1.0 cm× 1.2 cm. After ablation,specimens along the passage were subjected to NADH staining, and no lesions were found. HE and NADH staining showed no viable cells in the central ablation area. Conclusion With the advance of the technology and selection of materials, an EUS-guided needle electrode can be made. This preliminary animal trial demonstrates that radiofrequency ablation can be performed effectively and safely by using this EUS-guided needle electrode.
4.Diagnosis and treatment of blunt pancreatic injury:a report of 32 cases
Changjiang QIN ; Songluo SUN ; Shijie LI ; Li ZHENG ; Wanli MA
Chinese Journal of General Surgery 2001;0(09):-
Objective To explore the methods for early diagnosis and treatment of blunt pancreatic injury.Methods The clinical data of 32 patients with blunt pancreatic injury treated in our hospital from Janurery 2004 to Janurery 2009 were retrospectively analyzed.Results The conformity diagnosis rate of CT was 79.3%.Four cases received nonoperative treatment including 3 cases of grade I and 1 of grade II injury.A total of 28 cases with blunt pancreatic injury underwent operation: 5 grade I and 7 grade II cases underwent debridement and drainage;among the patients with grade Ⅲ injury,4 underwent distal pancreatectomy in combination with splenectomy,and 2 pancreatectomy with spleen preservation;amongst the 5 patients with grade Ⅳ injury,4 underwent Roux-en-Y pancreaticojejunostomy and 1 underwent distal pancreatectomy in combination with splenectomy;of the 5 patients with grade Ⅴ injury,1 case was operated on using duodenorrhaphy and diverticulization,2 underwent the Whipple′s procedare and 2 had damage control surgery.Three patients died of multiple organ failure,and complications occurred in 19(76.0%).Pancreatic fistula and pancreatic pseudocysts were the main complications.Conclusions In the absence of major pancreatic ductal injury,and the clinical conditions were stable,pancreatic injuries can be treated with nonoperative management.Operative treatment is suitable for severe blunt pancreatic injury.Appropriate operation,based on patient condition and the classification of pancrecatic trauma,is the key to increase the cure rate and decrease mortality rate.
6.Evaluation of left ventricular dyssynchrony with two-dimensional speckle tracking echocardiography in acute myocardial infarction
Chunyan MA ; Xiuyun LI ; Weidong REN ; Shuang LIU ; Shijie ZHAO
Chinese Journal of Medical Imaging Technology 2009;25(10):1800-1802
Objective To evaluate the left ventricular (LV) systolic dyssynchrony after the acute myocardial infarction (AMI) with two-dimensional speckle tracking echocardiography (STE). Methods STE were performed in 65 patients within 72 h of AMI and compared with 60 age- and sex-matched healthy volunteers. The peak longitudinal strain (LS_(peak)) was measured at LV myocardium. LV dyssynchrony was defined as an interval ≥130 ms for the absolute difference in time to peak radial strain for the anteroseptal wall versus the posterior wall (TAS-POST). Size of myocardial infarction (MIS)was confirmed by wall-motion score index (WMSI). Results The LS_(peak) and LV ejection fraction (LVEF) were lower, and WMSI and TAS-POST were larger in AMI patients compared with controls. Forty-two patients had developed LV dyssynchrony (64.62%), and there were strong correlation between LV dyssynchrony (TAS-POST) and LS_(peak), LVEF, and WMSI (MIS). MIS was the most independent predictor for systolic dyssynchrony. Conclusion AMI with normal QRS can induce LV dyssynchrony, which is mainly determined by MIS. STE is a reliable technique for accurate evaluation of LV synchrony.
7.Development of urothelial tumors following renal transplantation of 11 cases report
Wenhui SONG ; Zhijie BAI ; Shijie YAO ; Qian HU ; Haifeng WANG ; Qingtong MA ; Shiqiang YANG ; Hongshun MA
Clinical Medicine of China 2012;28(5):528-530
Objective To analyze the incidence and clinical features of urothelial tumors in renal allograft recipients.Methods A retrospective analysis of 1042 patients received renal allografts who had taken immunosuppression for at least six months between 2006 and 2011 in The First Centre Hospital of Tianjin was performed.Results Eleven cases of uroepithelial tumors were diagnosed in the 1042 cases of renal transplantation ( 1.06% ),of whom 9 cases were noticed by hematuria ( 81.8 % ),2 cases ( 18.2% ) by medical examination.Six patients were diagnosed with multifocal urothelial carcinomas.Surgery was performed on all the patients with renal tumors and followed by chemotherapy or radiotherapy.Conclusion Malignancies in urinary tract after renal transplantation should be bore in mind.Early diagnosis is very important.The treatment options include reducing immunosuppressive agents and removing tumor lesions completely.
8.Diagnosis and treatment of primary duodenal carcinoma
Changjiang QIN ; Zhaohui SHI ; Songluo SUN ; Shijie LI ; Li ZHENG ; Wanli MA
Chinese Journal of General Surgery 2009;24(9):695-697
Objective To evaluate the diagnosis, treatment and prognosis of primary duodenal carcinoma. Methods The clinical data of 41 cases with primary duodenal carcinoma admired during 2000-2007 were analyzed retrospectively. Results Clinical manifestation was not specific, including abdominal pain, abdominal distention, jaundice, bowel obstruction or bleeding. The correct diagnosis rate of endoscopy, duodenography, ultrasound and CT was 86%, 90%, 20% and 33% respectively. 23 cases underwent pancreaticoduodenectomy, 6 cases received segmental duodenectomy, 9 cases received bypass operation and 3 cases underwent biopsy. Overall postoperative 5-year survival rate was 18%. Univariate analysis revealed that the operation types, tumor histology, depth of tumor invatian, lymphatic invasion correlated with prognosis. Multivariate analysis showed that only the operative types, depth of tumor invasion and lymphatic invasion were independent prognostic factors. Conclusions Duodenography and endoscopy are major methods for diagnosis of primary duodenal carcinoma. Pancreaticoduodenectomy is the choice of therapy for primary duodenal carcinoma.
9.Investigation and Study on the Competence Required of Clinical Pharmacist in PIVAS of 63 Third-grade Class A Hospitals in China
Shuying HOU ; Zhen WANG ; Wenxiu SHI ; Wei MA ; Shijie LIU ; Hong BO
China Pharmacy 2017;28(6):725-729
OBJECTIVE:To provide reference for the establishment and improvement of work system for clinical pharmacist in PIVAS of our province even the country. METHODS:Questionnaire was conducted to investigate the PIVAS directors in the 65 third-grade class A hospitals in China,and the data was statistically analyzed. RESULTS:Totally 65 questionnaires were sent out, 63 were effectively received,with effective rate of 96.9%. 98.4% respondents thought PIVAS should equip clinical pharmacist,but the actual situation in respondent's hospital was not ideal. 100% thought clinical pharmacist in PIVAS should have the ability of prescription checking and prescription evaluation;more than 95% thought clinical pharmacist in PIVAS should assume the medi-cine publicity and education and need to have good communication with clinic;only 42.9% thought clinical pharmacist in PIVAS need to take part in the routine drug dispensing. CONCLUSIONS:It is necessary to equip clinical pharmacist with professional training in PIVAS. Clinical pharmacist in PIVAS should focus their ability on prescription checking and evaluation,medicine public-ity and education,communication with clinic.
10.Determination of Dioxin-like Compounds in Soil byAccelerated Solvent Extraction-Silica Gel Column Cleanup-BasicAlumina Column Separation Coupled with Gas Chromatography-Triple Quadrupole Mass Spectrometry
Jing WU ; Jicheng HU ; Yulong MA ; Shijie WANG ; Ying WANG ; Jun JIN
Chinese Journal of Analytical Chemistry 2017;45(6):799-808
A method for determination of PCDD/Fs, PCBs and PCNs in soil sample was developed by using accelerated solvent extraction (ASE)-silica gel column cleanup-basic alumina column separation coupled with GC-MS/MS.The sample was extracted by ASE with Hexane-methylene chloride (Hex-DCM, 50∶50, V/V) at 120℃.The basic alumina column was used to separate PCDD/Fs, PCBs and PCNs.The extracts were eluted with Hex-DCM (95∶5, V/V) to obtain PCBs and PCNs, followed by Hex-DCM (50∶50, V/V) to obtain PCDD/Fs.The limits of detection (LOD) were in the range of 0.04-0.25 μg/L, 0.10-0.20 μg/L and 0.01-0.05 μg/L for PCDD/Fs, PCBs, PCNs, respectively.The relative standard deviations (RSDs) of average relative response factors (RRF) were below 13%.The recoveries of 13C-labeled internal standards of the three classes of analytes were 50%-95%, 51%-103% and 49%-74%, respectively.Concentrations of ∑PCDD/Fs, ∑PCBs and ∑PCNs in soil samples were 16.1-1148 pg/g, 6.6-152.6 pg/g and 10.9-99.5 pg/g, respectively.The results were consistent with that of high resolution mass spectrometer.