2.Impact of interleukin 1β on the expression of lectin-like oxidized LDL receptor 1 and ABCA1 in human mesangial cell line
Hua LIU ; Hang LI ; Jianling TAO ; Yubing WEN ; Xuewang LI
Chinese Journal of Nephrology 2008;24(10):725-729
Objective To observe the impact of IL-1β on the expression of lectin-like oxidized LDL receptor 1 (LOX-1) and ATP-binding cassette transporter A1 (ABCA1) in human mesangial cell line (HMCL), and its association with cholesterol homeostasis of HMCL. Methods Levels of LOX-1 and ABCA1 of HMCL induced by IL-1β were examined by using real-time PCR and Western blot. Results IL-1β up-regulated LOX-1 mRNA and protein expression. Treated with 5 μg/L IL-1β, the levels of LOX-1 mRNA and protein reached the peak after 6 h and 24 h of stimulation and were 6.87 folds and 1.88 folds of control rspectively. The expression of ABCA1 mRNA and protein of lipid-loaded HMCL was down-regulated by IL-1β Stimulated with 5 μg/L IL-1β the expression of ABCA1 mRNA and protein decreased to the lowest level, 19.0% and 50.62% of the baseline respectively. Conclusions The expression of LOX-1 can be up-regulated while the expression of ABCA1 can be decreased by the stimulation of IL-1β. IL-1β can enhance dyslipidemia and influence the balance of cholesterol homeostasis of HMCL.
3.Etiological analysis of infection after eye surgery and the investigation of drug sensitivity
Jian, WANG ; Pei-tao, YU ; Wei-hua, DANG ; Rui, WEN
Chinese Journal of Experimental Ophthalmology 2013;(5):421-423
Background Clinical researches showed that antimicrobial-resistance of bacterium is gradually serious.It is very important to master pathogen distribution and antimicrobial susceptibility after eye surgery.Objective This study was to investigate the distribution and drug sensitivity of pathogenic bacteria from ocular operative infection in 3-year duration to provide a reference for reasonable selection of antibiotics.Methods Sixtyfive positive specimens were obtained from 65 patients due to postoperative infection in Department of Ophthalmology of Shenzhou Hospital and Shengjing Hospital from 2009 January through 2011 December.The pathogenic bacteria were isolated and then the drug sensitivity test of conventional antibiotics was performed.Results Among the 65 ophthalmic specimens,35 strains of Gram-positive bacteria were isolated with the constituent ratio 53.8%,and 15 strains of Gram-negative bacteria accounted for 23.1%.Fungus was found in 15 cases with the constituent ratio 23.1%.Staphylococcus epidermidis accounted for 42.9% in Gram-positive bacteria,and Pseudomonas aeruginosa accounted for 33.3% in Gram-negative bacteria.Aspergillus was the main component of fungus,which accounted for 60.0% of the proportion 3 strains of methicillin-resistant Staphylococcus aureus (MRSA) in 8 strains of Staphylococcus aureus,but no vancomycin-resistant Enterococcus (VRE) and vancomycin-resistant Staphylococcus (VRS) were seen.The in vitro drug sensitivity test showed that the main Gram-positive bacteria,Staphylococcus epidermidis and Staphylococcus aureus,were sensitive to linezolid,vancomycin,levofloxacin and ciprofloxacin with the sensitive rates >50.0%,and these bacteria were lowly sensitive to penicillin and erythromycin with the sensitive rates ≤30.0%.Pseudomonas aeruginosa appeared to be the main Gram-negative bacteria,showing a sensitive rate ≥ 80.0% to tobramycin,amikacin,ceftazidime,cefepime,cefoperazone/sulbactam,piperacillin/tazobactam,imipenem and meropenem.Conclusions Staphylococcus epidermidis,Staphylococcus aureus,Pseudomonas aeruginosa and Aspergillus are primary pathogens in ocular infection after operation.Antibiotics such as penicillin,erythromycin,levofloxacin,cefotaxime seem to be relatively high resistant to eye infection.To choose sensitive antibiotics timely and reasonably is a key to the prevention and control of ocular infection after operation.
4.Study on the efficacy and safety of high dose thymopentin combined with trans-artery chemoembolization for primary liver cancer.
Tao LI ; Zheng-Wen LI ; Hua-Chang WEN
Chinese Journal of Oncology 2007;29(12):941-942
OBJECTIVETo evaluate the efficacy and safety of high doses of thymopentin (10 mg/d) combined with transartery chemoembolization for primary liver cancer.
METHODSFifty primary liver cancer patients were randomly divided into two groups: therapeutic and control group, and all were treated with transfemoral artery chemoembolization (TACE) with oxaliplatin 150 mg, pharmorubicin 50 mg, 5-Fu 750 mg, CF 300 mg and lipiodol 20 ml. Therapeutic group (25) were added 10 mg thymopentin daily after TACE: i.v. on dl - d5, and im on D6 - D21.
RESULTSThere was a significant difference in adverse effect and toxicity such as naupathia,fever, swirl, asthenia observed between two groups (P < 0.05). No difference in either pre- or post-chemotherapy peripheral blood examination and biochemical assay was found between two groups (P > 0.05). In control group, CD4+ cell was 37.92% +/- 8.71% in pre-treatment, which decreased to 29.16% +/- 8.21% in post-treatment with a significant difference (P < 0.01), whereas there was no evident difference in CD4+ cell between pre-treatment and post-treatment in the treatment group.
CONCLUSIONTransartery chemoembolization combined with high dose of thymopentin in the treatment for primary liver cancer is effective and safe, and can significantly improve the immune function and the chemotherapy tolerance.
Adjuvants, Immunologic ; adverse effects ; therapeutic use ; Adult ; Aged ; Asthenia ; chemically induced ; CD4-Positive T-Lymphocytes ; Chemoembolization, Therapeutic ; Combined Modality Therapy ; Disease-Free Survival ; Epirubicin ; administration & dosage ; Female ; Fever ; chemically induced ; Fluorouracil ; administration & dosage ; Humans ; Iodized Oil ; administration & dosage ; Liver Neoplasms ; therapy ; Lymphocyte Count ; Male ; Middle Aged ; Nausea ; chemically induced ; Organoplatinum Compounds ; administration & dosage ; Remission Induction ; Survival Rate ; Thymopentin ; administration & dosage ; adverse effects ; therapeutic use
6.Nodular mucinosis of breast: report of a case and literature review.
Bao-hua YU ; Rui BI ; Wen-tao YANG
Chinese Journal of Pathology 2013;42(6):410-411
Adenocarcinoma, Mucinous
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pathology
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Antigens, CD34
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metabolism
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Breast
;
metabolism
;
pathology
;
surgery
;
Breast Diseases
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metabolism
;
pathology
;
surgery
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Breast Neoplasms
;
pathology
;
Diagnosis, Differential
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Female
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Fibroadenoma
;
pathology
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Follow-Up Studies
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Humans
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Mastectomy
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Middle Aged
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Mucinoses
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metabolism
;
pathology
;
surgery
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Mucocele
;
pathology
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S100 Proteins
;
metabolism
;
Vimentin
;
metabolism
7.Pharmacokinetics of salvianolic acid A after single intravenous administration in Rhesus monkey.
Jun-ke SONG ; Wen ZHANG ; Wei-ku ZHANG ; Zhang-ying FENG ; Tao XIE ; Guan-Hua DU
Acta Pharmaceutica Sinica 2015;50(9):1142-1147
Salvianolic acid A (Sal A) is one of the most effective compounds isolated from the root of Salvia miltiorrhiza. Up to now, several studies regarding the pharmacokinetic profiles of Sal A have been reported, however there is no such study reported in monkeys, the species which is more similar to human. The aim of this study is to develop a LC-MS method for the determination of Sal A in monkey plasma and apply it to the pharmacokinetic studies of monkeys. After single intravenous administration of Sal A, the plasma concentration-time curves were observed and the main pharmacokinetic parameters were calculated. The plasma concentration at 2 min (C2 (min)) values were (28.343 ± 6.426), (45.679 ± 12.301) and (113.293 ± 24.360) mg x L(-1) for Rhesus monkeys treated with Sal A at 2.5, 5 and 10 mg x kg(-1). The area under the concentration-time curve (AUC(0-∞)) values were (3.316 ± 0.871), (5.754 ± 2.150) and (13.761 ± 2.825) μg x L(-1) x h, respectively. Furthermore, this method was improved and applied to the simultaneous determination of Sal A, Sal B and Sal C, which provided useful information for preclinical studies and clinical trials of Sal A, Sal B and Sal C.
Administration, Intravenous
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Animals
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Caffeic Acids
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pharmacokinetics
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Chromatography, Liquid
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Drugs, Chinese Herbal
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pharmacokinetics
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Lactates
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pharmacokinetics
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Macaca mulatta
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Mass Spectrometry
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Plant Roots
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chemistry
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Salvia miltiorrhiza
;
chemistry
8.DEEP FERMENTATION TECHNIQUE OF TRICHOLOMA MATSUTAKE MYCELIUM
Ping LIU ; Wen-Yi TAO ; Zheng-Hong XUE ; Zhong-Hua AO ; Zhi-Hao SUN ;
Microbiology 1992;0(05):-
The deep fermentation technique of Tricholoma matsutake is systemically studied in this paper firstly. The best culture determined by orthogonal test is 3g/L of cornflour, 1g/L of glucose, 1g/L of bean cake flour, 1mL/L of corn steep liquid, 1g/L of KH 2PO 4. The best fermenting condition is: 25℃, rotating speed 160 r/min, pH5.0,inoculating amount 10%, 120mL culture medium per 500mL flask. Under these conditions, the mycelia reach 12.94g/L after fermenting 12d.
9.Two-step Tandem Chromatography Purification of Anti-human CD80 Monoclonal Antibody 4E5 from Mouse Ascites
Hong-Bing MA ; Yu-Hua QIU ; Ran TAO ; Wen-Xiang LI ; Ying XU ; Xue-Guang ZHANG ;
China Biotechnology 2006;0(08):-
A two-step method for the purification of blocking-type anti-human CD80 monoclonal antibody 4E5 from mouse ascites was developed using anion exchange and gel filtration in combination. The ascites was first purified by anion exchange after centrifugation and filtration. The experimental parameters of sample loading and elution were optimized. The optimized loading condition was pH 8.0,50 mmol/L Tris-HCl and satisfactory results were obtained using a 0~0.5mol/L NaCl step elution. The fraction containing the protein of interest was directly loaded on gel filtration column and eluted using a 20 mmol/L phosphate buffer at pH 7.2. The purity of the obtained monoclonal antibody was up to 95% with a recovery of 61%. The purity of mAb could efficiently inhibit the growth of Daudi cells. The amplification of the method was also studied using a Bio-Scale Q5 column and the result was satisfied.
10.Recent Advances on Reverse Genetics of Foot-and-mouth Disease Virus
Xing-Wen BAI ; Ping-Hua LI ; Zai-Xin LIU ; Xiang-Tao LIU ; Qing-Ge XIE ;
Microbiology 1992;0(01):-
Usage of reverse genetic techniques in the research area of the fundamental etiology of foot-and-mouth disease virus (FMDV), has resolved the issue about the function of viral gene of FMDV on genomic integer level. At present, a further recognition and apprehension for the molecular etiology of FMDV based on the development in reverse genetics was made. Combined with the research work in our labs, we reviewed international advances about the molecular pathogenic mechanism, the relationship be-tween virulence and variation in the genomes, influencing factors for the viral replication, and the develop-ment of new-type gene vaccine of FMD in this article, and propose the potential research aspects in reverse genetics of FMDV in the future.