1.Clinicopathological analysis of 110 ocular malignant melanoma
Chinese Journal of Experimental Ophthalmology 2012;30(1):59-62
BackgroundOcular melanoma is a malignant tumor with a poor prognosis.To study its mode of pathogenesis and development is helpful for early diagnosis and treatment and improving prognosis. Objective This study was to analyze the location and pathological types of ocular melanoma,and explore the relationship of pathological types with prognosis of ocular malignant melanoma. Methods 110 clinical data and specimens of ocular melanoma were collected at West China Hospital,China.The specimens were examined by hematoxylin & eosin staining,immunochemistry and studying their ultrastructure.The growth location,histological classification,and their relationship with prognosis were analyzed and discussed.The clinicopathological records of the 1 l0 cases with ocular region malignant melanoma treated from January 1980 to December 2007 were analyzed.Results The primary locations of the tumors with respect to the tissue type were:66 cases in the uvea (60.00% ),27 cases in the ocular surface tissue (24.55%),8 cases in the secondary lesion of orbit cavity (7.27%),7 cases on the eyelid skin (6.36%),and 2 cases in the lacrimal sac ( 1.82% ).The neoplasm was classified according to pathological types:spindle-cell A type in 31 cases (28.18% ),spindle-cell B type in 31 cases (28.18%),mixed-cell type in 25 cases (22.73%),epithelioid-cell type in 17 cases ( 15.46% ) and other type in 6 cases (5.45%).The notability of diffusion or recurrence rate of the 5 pathological types showed statistical significance (x2 =14.463,P =0.006 ),and the rank in decending order was:other type,epithelioid-cell type,mixed-cell type,spindle-cell B type and spindle-cell A type.The clinical manifestations of ocular melanoma were dependent upon the lesion position without specificity.ConclusionsThe majority of the ocular malignant melanoma appears in the uvea and ocular surface tissue,and its common pathological types were spindle-cell type followed by mixed-cell type,epithelioid-cell type and other type.The highest recurrence rate is in other type of ocular malignant melanoma.Ophthalmologist should be aware of the clinical manifestation of ocular malignant melanoma.
3.A analysis of risk factors in anneurysmal cerebral vasospasm after subarachnoid hemorrhage
Xiaojiang CHENG ; Jiangling WEI ; Min GUO
Chinese Journal of Nervous and Mental Diseases 2014;(11):682-686
Objective To investigate the risk factors of aneurysmal subarachnoid hemorrhage (aneuryismal sub?arachnoid hemorrhage, aSAH) vasospasm (cerebral vasospasm, CVS) and provide the basis for the clinical prevention and treatment of CVS. Methods A retrospective analysis of clinical data was conducted on 255 cases aSAH patients receiving treatment between March 2012 and March 2014 in First Affiliated Hospital of Xinjiang Medical University Department of Neurosurgery, s treated. The clinical data included admission age, gender, ethnicity, history of hypertension, smoking his?tory, arterial tumor site, improved Fisher grading, admission Hunt-Hess grade, the dosage of Nimodipine, dehydrating agent, white blood cell count, blood glucose, blood lipids, blood calcium levels, platelet count. Univariate analysis and multivariate Logistic retrospective analysis were used to analyze the association between above-mentioned factors and the occurrence of CVS. Results A total of 73 cases developed CVS after aSAH and incidence rate of CVS was 28.6%. Uni?variate analysis showed that there were significant differences between patients with and without CVS in history of hyper? tension, smoking history, improved Fisher grade, admission Hunt-Hess grade, small doses of nimodipine, white blood cell count and blood glucose (P<0.05). The Logistic regression analysis showed that the history of hypertension, smoking history, improved Fisher grade, admission Hunt-Hess grade, a small dose of Nimodipine and white blood cell count were risk factors of CVS after aSAH (P<0.05). Conclusions the History of hypertension, smoking history, improved high Fish?er grade, high admission Hunt-Hess grade are independent risk factors of CVS after aSAH. A small dose of Nimodipine is a protective factor while increase in white blood cell count is a risk predictor, which should be controlled by enhancing clinical prevention.
4.Content Determination of 4 Index Components in Uygur Medicine Capparis spinosa by HPLC
Xuan SUN ; Min WEI ; Jie CHENG
China Pharmacy 2015;(21):3008-3009,3010
OBJECTIVE:To establish the method for determining the contents of protocatechuic acid,rutin,gallic acid and kaempferol in Uygur medicine Capparis spinosa. METHODS:HPLC was performed on the column of Agilent C18 with the mobile phase of acetonitrile-0.1% phosphoric acid solution(7∶93,V/V)at the flow rate of 1.0 ml/min,the detection wavelength was 327 nm,column temperature was 30 ℃ and volume was 10 μl. RESULTS:The linear range was 0.260 0-50.0 μg for protocatechuic ac-id(r=0.995 6),3.109 0-102.0 μg for rutin(r=0.999 9),1.018 0-40.0 μg for gallic acid (r=0.998 9) and 0.063 0-36.0 μg for kaempferol(r=0.998 8);RSDs of precision,stability and reproducibility tests were all no more than 1.20%;average recoveries were respectively 101.51%(RSD=1.85%,n=6),99.70%(RSD=1.23%,n=6),98.28%(RSD=1.86%,n=6) and 100.97%(RSD=1.74%,n=6). CONCLUSIONS:The method is specific,and can fast and accurately determine the contents of protocate-chuic acid,rutin,gallic acid and kaempferol in Uygur medicine C. spinosa.
5.INDENA SPA company's patent portfolio of Ginkgo biloba preparation.
Nan WANG ; Kai GUO ; Xin-min CHENG ; Wei LIU
China Journal of Chinese Materia Medica 2015;40(19):3889-3893
INDENA SPA Company in Italy is a multi-national company that produces and sells plant extracts. Based on its own re- search advantages in the field of Ginkgo biloba preparation, the company protects its own products market effectively through building patent portfolio around the patents of its opponent. Based on the multi-angle analysis for patent portfolio of G. biloba preparation from the aspects of application time, legal status, technical development route, and patent portfolio layout, this article provides technical reference on research and development of G. biloba preparation, and the author suggest that Chinese applicants learn techniques and layout experiences of other patents fully to enhance the level of research and patent protection level.
Chemistry, Pharmaceutical
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economics
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legislation & jurisprudence
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Ginkgo biloba
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chemistry
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Italy
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Patents as Topic
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Plant Extracts
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chemistry
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economics
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isolation & purification
6.Inhibitory Effects of TH2 on Human Epithelial Hepatoma Cancer Cells
Bo XU ; Cheng XING ; Min LI ; Wei GUO ; Jingrong CUI
Progress in Biochemistry and Biophysics 2006;0(05):-
It has been well known that apoptosis induction and cell cycle arrest are typical biological effects observed in cancer cells after proteasome inhibition. TH2 is a new natural xanthone analogue isolated from the resin of Garcinia hurburyi tree. Here, the cell growth inhibition of TH2 on human hepatocellular carcinoma cell line (Bel-7402) was evaluated in vitro using SRB assay. The treatment of 10 ?mol/L TH2 reduced the surviving fraction from 86% (12 h) to 17.2% (48 h). To assess whether TH2 induce apoptosis, the appearance of sub-G1 peak, a specific fraction for apoptosis was detected by flow cytometry analysis. Progressive increase in the percentage of apoptotic population was observed in a dose-and time-dependent manner. Furthermore, a cleavage of poly (ADP-ribose) polymerase (PARP), a marker of early apoptosis, was observed clearly when the cells exposed to 10 ?mol/L of TH2 for 24 h by immunoblotting analysis. In vitro activities of 20 S proteasome purified from human erythrocytes on fluorogenic peptide substrates revealed that TH2 inhibited the trypsin-like, chymotrypsin-like and peptidylglutamyl peptide hydrolyzing activities in dose-dependent manner. Moreover, the turnover of tumor suppressor p53, a sign of deregulation of cell cycle progression and apoptosis induction by classical proteasome inhibitors, was disrupted in Bel-7402 cells. All these data indicate that TH2 had inhibitory effect on the proliferation of Bel-7402 cells and induction of apoptosis, which might be related to its inhibition of proteasome.
7.Expressions of Bile Acid Receptor FXR and TGR5 in Patients with Ulcerative Colitis
Min WEI ; Wenfang CHENG ; Jing PING ; Lu XIA
Chinese Journal of Gastroenterology 2017;22(8):465-468
Background:The incidence of ulcerative colitis (UC)in developed countries is higher than that in developing countries,which may be related with westernized lifestyle,especially high animal protein and low complex carbohydrate diet. With the increased high fat and meat intake,synthesis and secretion of bile acid in liver is also increased,which may have an impact on the occurrence of UC. Aims:To investigate the expressions of farnesoid X receptor (FXR)and G protein-coupled bile acid receptor 5 (TGR5)in patients with UC. Methods:Thirty patients with active UC from January 2013 to June 2016 at the Affiliated Jiangning Hospital of Nanjing Medical University were enrolled,and 30 healthy subjects were served as controls. Expressions of FXR and TGR5 were determined by immunohistochemistry. Results:Compared with control group,expression of FXR was significantly decreased in UC patients (4. 63 ± 2. 07 vs. 6. 91 ± 2. 62,P =0. 00),however,no significant difference in expression of TGR5 was found between the two groups (6. 70 ± 2. 90 vs. 6. 11 ± 2. 44,P = 0. 40). Expression of FXR was significantly increased in right hemicolon colitis than in left hemicolon colitis (P < 0. 05). Conclusions:There is a significant decrease in FXR in active UC patients,indicating that FXR may have some role in the pathogenesis of UC,however,TGR5 may have no obvious effect in the pathogenesis of UC.
8.Clinical Observation of Piperazine Ferulate Combined with Glutathione in the Treatment of Diabetic Ne-phropathy
Min LONG ; Wei CHENG ; Bo WANG ; Dongfang LIU
China Pharmacy 2016;27(35):4988-4989,4990
OBJECTIVE:To observe the clinical efficacy and safety of piperazine ferulate combined with glutathione in the treatment of diabetic nephropathy. METHODS:80 patients with diabetic nephropathy in our hospital were divided into observation group and control group according to random number table,with 40 cases in each group. Both groups was given general treatment as blood glucose,blood lipid and blood pressure control. Control group was additionally given Reduced glutathione tablets 400 mg, tid,on the basis of general treatment. Observation group was additionally given Piperazine ferulate tablets 100 mg,tid,on the ba-sis of control group. Both groups were treated for 12 weeks. The fasting plasma glucose(FPG),2 h postprandial plasma glucose(2 hPG),blood pressure,blood lipid,serum creatinine (Scr),blood urea nitrogen (BUN),24 h urinary total protein and albumin, urine β2 microglobulin(β2-MG)and N-acetyl-β-glucosaminidase(NAG)of 2 groups were detected before and after treatment. The occurrence of ADR was observed. RESULTS:Before treatment,there was no statistical significance in FPG,2 hPG,blood pres-sure,blood lipid,Scr,BUN,24 h urinary total protein and albumin,urine β2-MG and NAG between 2 groups(P>0.05). After treatment,above indexes of 2 groups were improved significantly,and the observation group was better than the control group, with statistical significance(P<0.05). No obvious ADR was found in 2 groups. CONCLUSIONS:In the treatment of diabetic ne-phropathy,piperazine ferulate combined with glutathione can improve blood glucose,blood pressure,blood lipid levels and renal function with good safety.
10.Risk factors for surgical site infection in patients undergoing cardiac surgery
Lifeng CHENG ; Jun LI ; Min ZHU ; Yutao WEI
Chinese Journal of Infection Control 2017;16(1):62-65
Objective To analyze risk factors for surgical site infection(SSI) in cardiac surgery patients,so as to provide basis for making control measures.Methods 215 patients who underwent cardiac surgery in a hospital between January 2012 to December 2014 were investigated,univariate analysis and multivariate logistic regression analysis were used to analyze the related risk factors for postoperative SSI.Results The incidence of postoperative SSI in cardiac surgery patients was 16.28% (35/215).Univariate analysis showed that the incidence of postoperative SSI was relatively higher in patients aged>65 years,duration of operation>5 hours,continuous operation,preoperative hospitalization time >7 days,irrational perioperative antimicrobial use,as well as patients with underlying diseases such as hypertension and diabetes mellitus.Multivariate logistic regression analysis indicated that the age,duration of operation,continuous operation,preoperative hospitalization time,irrational perioperative use of antimicrobial agents,and patients with underlying diseases were independent risk factors for SSI in patients who underwent cardiac surgery.Conclusion Incidence of SSI is higher in patients with cardiac surgery,preventive measures should be taken to control risk factors such as duration of operation,so as to reduce the incidence of SSI.