1.In Vivo and in Vitro Antibacterial Activities of Cefodizime Sodium
China Pharmacy 2007;0(31):-
OBJECTIVE: To evaluate the in vitro and in vivo antibacterial activities of cefodizime from both home and abroad. METHODS: The minimal inhibitory concentrations (MICs) of domestic and imported cefodizime, cefotaxime sodium against 300 clinical isolates of bacteria were tested by standard agar dilution method and the test tube dilution method. The in vivo antibacterial activities of cefodizime were determined in mice with experimental systemic infection caused by E.coli, K. pneumoniae and S.aureus. The values of ED50 were calculated by Bliss method. RESULTS: Both domestic and imported cefodizime had remarkable potency against majority gram- negative bacteria and gram- positive bacteria, including pneumococcus and beta streptococcus, and the MIC90 of cefodizime stood at 0.012~1.0?g?mL-1; and they showed medium grade antibacterial activity against bacillus cloacae, bacillus aerogenes and serratia but mild effects on MSSA and S.epidermidis, and the MIC50 stood at 4?g?mL-1. In this trial, bacillus aeruginosus, acinetobacter, enterococcus and MRSA showed resistance against the domestic and imported cefodizime. The in vivo antibacterial activities of domestic and imported cefodizime were similar and remarkable in mice infected with E.coli, K.pneumoniae and S.aureus. CONCLUSION: Domestic and imported cefodizime had excellent and similar antibacterial activity.
4. Determination of Plumbago content in Herba Plumbaginis Zeylanicae under different growing conditions
Chinese Pharmaceutical Journal 2012;47(10):834-837
OBJECTIVE: To determine Plumbago content in Herba Plumbaginis Zeylanicae under different growing conditions and to provide experimental data for its domestication. METHODS: High performance liquid chromatography was used to determine Plumbago contents in the roots, stems and leaves of home-grown Herba Plumbaginis Zeylanicae. RESULTS: Plumbago content in Herba Plumbaginis Zeylanicae grown in mellow and clay soil was higher than in those grown in sand and crude soil. Potasium-fertilized and nitrogen-fertilized Herba Plumbaginis Zeylanicae contained higher Plumbago than those fertilized by phosphorus. Plumbago content was the highest in Herba Plumbaginis Zeylanicae grown in full light. Plumbago contents in roots, stems, and leaves of Herba Plumbaginis Zeylanicae grown under different bred conditions did not vary much. CONCLUSION: The research group's preliminary studies indicated that Plumbago was the main effective ingredient having anti-cancer and anti-inflammation bioactivity. Clay soil, cuttings, potassium fertilizer and nitrogen fertilizer, and full light were thought as ideal conditions for increasing Plumbago content. High quality Herba Plumbaginis Zeylanicae can be grown under these conditions. Copyright 2012 by the Chinese Pharmaceutical Association.
5.Study on the relationship between SPN and Pleural with 3D and multiplanar reconstruction of CT
Changhua WANG ; Zhi GAO ; Feng DAI
Chinese Journal of Primary Medicine and Pharmacy 2005;0(11):-
inflammatory pseudotumor. Conclusions The number of pleural is closely relative to the shape size and position. The occurrence rate of pleural indentation is closely relative to the distance between SPN and pleural,and the nature of SPN has correlation with pulling pleural.
6.SSTR2 mRNA expression and correlation with proliferating cell nuclear antigen in human colorectal cancer
Yuanbin DAI ; Xizhi ZENG ; Zhi XIANG
Journal of Third Military Medical University 2003;0(23):-
Objective To investigate somatostatin receptor subtype 2 (SSTR2) mRNA expression and its correlation with proliferating cell nuclear antigen (PCNA) in human colorectal cancer. Methods A total of 60 colorectal cancer samples were analyzed. The SSTR2 mRNA expression was examined by in situ hybridization (ISH) using multiphase oligoprobes. The PCNA were detected by immunohistochemical staining. A computerized image analysis system was utilized to estimate the relative contents of SSTR2 mRNA. Results The positive rate of expression of SSTR2 mRNA and relative contents in early and well-differentiated colorectal cancer were higher than those in advanced and poorly differentiated lesion. A negative correlation between SSTR2 mRNA expression and PCNA was found in colorectal cancer. Conclusion In the samples of colorectal cancer, the expression of SSTR2 mRNA is correlated with the degree of differentiation and clinical stage, and it plays an important role in reflecting the degree of malignancy and prognosis.
7.Comparison of the treating effects of arthroscopic surgery in global and Focal pincer femoroacetabular impingement
China Journal of Endoscopy 2018;24(4):61-64
Objective To investigate the effect of arthroscopic surgery treating global pincer femoroacetabular impingement. Methods Global (center-edge angle ≥ 40°) and Focal (center-edge angle 25° ~ 39°) cohorts were based on pre-operative radiographs. Pre-operative and intra-operative findings, surgical procedures, postoperative nonarthritic hip score (NAHS) and satisfaction (5-point Likert scale), complications and conversion arthroplasties were compared. A nested case-control study was also performed. Results The Global cohort consisted of 15 patients of mean age (37.2 ± 11.3) years. Pre-operative NAHS was (51.5 ± 22.7) and (74.1 ± 16.6) at 24 months after operation. The change in NAHS was significant (P = 0.001). Mean satisfaction was (4.2 ± 1.2). There was one total hip arthroplasty (THA) conversion (6.7%), no revision surgeries or complications. The Focal cohort consisted of 125 patients of mean age (39.8 ± 13.5) years. Pre-operative NAHS was (55.5 ± 17.1) and (77.3 ± 18.5) at 24 months after operation. The change in NAHS was significant (P = 0.015). Mean satisfaction was (4.2 ± 1.3). There were eight THA conversions (6.4%), three complications (2.4%) and two revision surgeries (1.6%). Cohort comparisons revealed no statistically significant difference in NAHS (P = 0.301), satisfaction (P = 0.926) and THA conversion rate (P = 0.912). The nested case-control study found mean post-operative change in NAHS was (22.2 ± 6.9) and (21.5 ± 8.8), respectively, at 24 months (P = 0.955). Conclusion The global pincer FAI was safe and effective with arthroscopic surgery, and the effect was similar to that of the local pincer FAI .
8.Research on the Acidolysis Process of Anaerobic Acidification Bacterium
Kai-Xun TIAN ; You-Zhi DAI ; Yun-Lin LING ;
Microbiology 1992;0(01):-
Acidolysis kinetics on the process of the hydrolysis acidification by using glucose as the only energy sources was researched.It was concluded that the acidolysis kinetics constants are V_(max)=8.45d~(-1) and K_s=1089mg/L,under the circumstances of a temperature 37℃?0.5℃and the influent pH value 6.5.The results show that the rate of anaerobic acidification process is greater than that of completed an- aerobic or anoxic process.
9.The diagnosis of atherosclerotic aortic ulcer by electron beam CT
Ai-Hua ZHI ; Ru-Ping DAI ; Shi-Liang JIANG ;
Chinese Journal of Radiology 2001;0(02):-
Objective To evaluate the clinical value of electron beam computed tomography (EBCT)in the diagnosis of atherosclerotic aortic ulcer.Methods Sixty-eight consecutive patients(55 men and 13 women,aged 40—85 years,mean 65.12?9.55 years)with atherosclerotic aortic ulcer,who underwent EBCT scans from December 2001 to December 2004,were studied retrospectively.Contrast- enhanced continuous volume scanning(CVS)was performed by Imatron C-150XP EBCT scanner with 6 mm or 3 mm slice thickness and 100 milliseconds acquisition time.The scan was started 18—30 s after the injection of 80—100 ml contrast medium at the rate of 3.5—4.5 ml/s.Results In sixty-eight patients with atherosclerotie aortic ulcer,50 patients had acute aortic syndromes,36 had intramural hematomas,15 had atherosclerotic aortic aneurysms,3 had aortic dissections.46 patients with progresive ulcer usually had acute aortic syndrome while 22 patients with stable ulcer didn't(P
10.Analysis of the expression of matrix metaUoproteinase and tissue inhibitor of metalloproteinase in gestational trophoblastic diseases
Shu-Zhen DAI ; Ling-Zhi WANG ; Yu-Jun LI ;
Chinese Journal of General Practitioners 2003;0(03):-
Objective To explore the relationship between the expression of matrix metalloproteinase (MMP) and tissue inhibitor of metalloproteinase (TIMP) in gestational trophoblastie diseases and its invasiveness.Methods The expression and distribution of MMP-7,MMP-9,TIMP-1 and TIMP-2 were determined by immunohistochemistry PV-6000 in 49 cases of hydatidiform mole (eight of them with malignant transformation),six cases of invasive hydatidiform mole,two cases of choriocarcinoma and 18 cases with normal villi in early pregnancy.Results The expression of MMP-7,MMP-9,TIMP-2 and MMP- 9/TIMP-1 was significantly higher in choriocareinoma,invasive mole and malignant transformed mole than that in normal villi in early pregnancy and non-malignant transformed mole (F=10.950,7.760,7.304, 3.442;P