2.A new aurone glycoside with antifungal activity from marine-derived fungus Penicillium sp. FJ-1.
Yan-xia SONG ; Qiang MA ; Jie LI
China Journal of Chinese Materia Medica 2015;40(6):1097-1101
Endophytic fungi which reside in the tissue of mangrove plants seem to play an important role in the discovery of new biologically active substances. During the course of screening for the antimicrobial metabolites from the endophytic fugus Penicillium sp. FJ-1 of mangrove plant Avicennia marina, a new aurone glycoside (1) was isolated by repeated column chromatography on silica gel and recrystallization methods. The structure of 1 was elucidated as (Z)-7,4'-dimethoxy-6-hydroxy-aurone-4-O-β-glucopyranoside, on the basis of spectroscopic analysis. Compound 1 exhibited antifungal activity against Candida sp., with the potency comparable to amphotericin B and much better than fluconazole. Compound 1 can also inhibit extracellular phospholipase secretion in a concentration-dependent manner.
Antifungal Agents
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chemistry
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isolation & purification
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metabolism
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pharmacology
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Benzofurans
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chemistry
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isolation & purification
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metabolism
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pharmacology
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Candida
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drug effects
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Glycosides
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chemistry
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isolation & purification
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metabolism
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pharmacology
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Molecular Structure
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Penicillium
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chemistry
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genetics
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isolation & purification
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metabolism
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Seawater
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microbiology
3.A comparative study of the subjective well-being between students in junior high schools for the blind and the normal junior high school students
Yanyan LIN ; Jie ZHAO ; Xia LI
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(6):549-551
Objective To study and compare the present situation and the difference in subjective well-being between students in junior high schools for the blind and normal junior high school students, and provide basis for the construction of education mode for the well-being of the blind students. Methods By random sampling method, subjective well-being questionnaire was used to investigate the 155 blind students in five blind schools and 436 normal junior high school students in three junior high schools in Shandong Province. Results ( 1 ) The blind students had shown significant differences in many aspects of subjective well-being such as gender, family e-conomic status, sight and parents'education degree (P<0. 05) . (2) Blind school students'social confidence experience (4. 59 ±1.13) was significantly higher than that of the normal students (4.31 ±1.13), and had a significant difference (P<0.05). Blind students got significantly lower scores ((4. 38 ± 1.26) , (4.00 ± 1. 29) ,(3. 58 ± 1. 37) ,(3.89 ± 1. 35) ,(4.41 ± 1.04) , (4. 20 ± 1. 33) ) than normal school students( (4.68 ± 1. 19) , (4. 36 ±1.14),(3.88±1.27),(4.41 ±1.25),(4.61 ±0.99), (4. 52 ± 1. 18)) in target value experience, physical health experience, mental health experience, interpersonal adaptability experience self-acceptance experience, and emotional balance experience. Conclusion There exists a significant difference between the blind students and the normal junior high school students in the different aspects of subjective well-being.
4.Misusage of perioperative nutritional support in patients with endoscopic retrograde cholangiopancreatography
Cunhe LIANG ; Feng XIA ; Jie LI
International Journal of Surgery 2010;37(7):448-450
Objective To evaluate the effects of nutritional support in patients with ERCP.Methods One hundred and fourteen in patients with ERCP From Apr.2003 to Oct.2008 were reviewed retrospectively,and the clinical value and complications of nutritional support were evaluated.Results One hundred fourteen inpatients examined with ERCP,were divided into two groups;parenteral group(re = 46)and electrolytes treatment group(re = 68).There were no significant difference in length of hospital stay and postoperative complications between the two groups.Electrolytes treatment group had lower relevant hospital cost.Sixty-three patients were fasting 12 hours(eating group),and 51 patients were fasting 24 hours(fasting group).There were no significant difference in cost,length of hospital stay,postoperative complications between the two groups.Conclusions The rate of parenteral nutrition in patients with ERCP were relatively higher,the application of parenteral nutrition was unnecessarily overdose;Early enteral nutrition is safe in successful operating patients.
5.Expression,Purification of Fusion Protein TGF?-PE40 and the Cytotoxicity of TGF?-PE40 on Tumor Cells
Chinese Journal of Cancer Biotherapy 1996;0(04):-
Objective: To express and purify transforming growth factor ?(TGF?)-pseudomonas exotoxin 40 and investigate its cytotoxic effect on cancer cells overexpressing epidermal growth factor (EGF) receptor. Methods: Recombi nant plasmid pV28 was constructed by inserting the gene coding TGF?-PE40 into the vector pET28a Expression of fusion protein was conducted using the host BL21. Production of the recombinant protein was induced by IPTG, following extraction and purification of inclusion bodies with His-tag purification system. Cell viability assay (by MTT) was performed to determine the cytotoxic effect of TGF?-PE40 on cancer cells ( A431 and SK-OV3). Results: Recombinant plasmid pV28, which expresses TGF?-PE40, was constructed successfully. Purity of TGF?-PE40 was about 98% after a purification procedure using His-tag column. Cytotoxic experiment showed that at a concentration of 0. 86?0. 07 UUUUg/ml, TGF?-PE40 could reduce 50% viability of A431, which has high expression of EGFR. Whereas the IC50 for ovarian cancer cell SK OV3, which expresses less EGFR, was 6.37?2.18 ?g/ml. There was a significant difference between these two groups (P
6.Discussion and analysis of the treatment of Pilon fractures(R?edi-Allgower type Ⅱ~Ⅲ)
Honggang XIA ; Jie LI ; Decheng LV
Orthopedic Journal of China 2006;0(02):-
[Objective]To discuss and analyze the effect of the treatment of high-energy Pilon fractures.[Method]Twenty-four patients with R?edi-Allgower type Ⅱ and Ⅲ Pilon fractures(Ⅱ=14,Ⅲ=10) were treated by open reduction and internal fixation.Ten cases were combined with external fixation.Sixteen cases were treated by bone transplantation(spongy bone=10,big pieces of ilium=6).[Result]From June 2003 to December 2007,the restoration of fractures with Burwell-Charnley system was:excellent=16,good=8;the function of ankle joint with Mazur system was evaluated:excellent=12,good=10,fair=2.[Conclusion]In the time of treating Ruedi-Allgower type Ⅱ and Ⅲ Pilon fractures,the bone transplantation with big pieces of ilium is effective to solve the serious bone loss,strengthen the internal fixation and exercise ankle joint earlier.
7.Reconstruction of breast suspensory structure for correction of breast ptosis
Bi LI ; Youchen XIA ; Jie ZHANG
Chinese Journal of Minimally Invasive Surgery 2005;0(10):-
Objective To summarize clinical experience of reconstruction of breast suspensory structure in correction of mild-to-moderate breast ptosis.Methods Through a periareolar incision,the flabby deep layer of the superficial fascia beneath the upper breast gland was completely removed.Then the gland was lifted up to the normal position and the superior pole of the gland was fixed to the pectoral fascia at the second intercostal space.By using the dermal bra technique,an appropriate amount of skin was excised,and the dermis was fixed to the anterior surface of the breast gland. Or a monofilament polypropylene mesh was implanted and fixed to the anterior or posterior surface of the upper breast gland.Postoperatively,remarkable scar fibrosis reaction developed to form strong supporting structures just like natural ones.Glandular plication or implant augmentation was simultaneously employed to enhance the projection,if necessary.Results A total of 32 cases of mild-to-moderate breast ptosis was treated with this technique,including 10 cases of mastopexy only,20 cases of mastopexy with implant augmentation,and 2 cases of mastopexy using monofilament polypropylene mesh.The operation time was 90~150 min(mean,110 min).The intraoperative blood loss was 30~100 ml(mean,58 ml).No complications such as nipple or areola necrosis or sensory disturbance were found.Follow-up observations for 6~12 months(mean,11.3 months) showed a satisfactory rate of 90.6%(29/32).Conclusions Reconstruction of breast suspensory structure is a simple,safe,and effective method for correction of mild-to-moderate breast ptosis without hyperplasia of mammary glands.
9.Effect of danlou tablet on arrhythmia model rats induced by transient myocardial ischemia/ reperfusion.
Li-Li GUO ; Jie WANG ; Fei LIN ; Yong-Xia HE
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(9):1125-1129
OBJECTIVETo explore the effect of Danlou Tablet (DT) on arrhythmia model rats induced by transient myocardial ischemia/reperfusion (I/R).
METHODSTotally 45 healthy Wistar rats were randomly divided into 3 groups, the sham-operation group, the model group, and the DT group, 15 in each group. Rats in the sham-operation group and the model group were administered with distilled water by gastrogavage at the daily dose of 0.1 mL/kg. Rats in the DT group was administered with 0.53 g/mL DT suspension by gastrogavage at the daily dose of 0.1 mL/kg. All medication was lasted for 10 successive days. The myocardial I/R experiment was performed at 1 h after the last gastrogavage. ECG was performed before ligation and at I/R. The jugular arterial blood pressure of all rats was measured during the whole course. ST segment changes were observed at each time point of I/R. The ventricular fibrillation, the premature ventricular, the number and the duration of ventricular tachycardia within 30 min reperfusion were also observed. Activities of Na(+)-K+ ATPase and Ca2+ ATPase in the myocardium homogenate were detected as well.
RESULTSThe jugular arterial blood pressure and the heart rate were slightly lower in the DT group than in the model group, but with no statistical difference (P > 0.05). Compared with the sham-operation group, the degree of ST segment was obviously elevated in the model group at 0, 5, and 7 min (P < 0.05). It was significantly lower in the DT group than in the model group (P < 0.01). ST seg ment was more elevated at 5 min than at 0 min in the model group, but the degree of ST segment elevation was still obviously lower in the DT group than in the model group (P < 0.05). There was no statistical difference in the degree of ST segment elevation at 7 min between the two groups (P > 0.05). At 0 min when the decrement of ST segment exceeded one half the ischemia, there was no statistical difference in the degree of myocardial ischemia between the model group and the DT group (P > 0.05). Compared with the model group, the incidence of fatal and nonfatal ventricular fibrillation, the frequency and duration of ventricular tachycardia and premature ventricular beats were obviously lessened, and activities of Na(+)-K+ ATPase and Ca(2+)-ATPase increased (all P < 0.05).
CONCLUSIONSDT could significantly protect arrhythmias induced by transient I/R. Its effect might be related to lowering the degree of myocardial ischemia, and increasing ion transport channel related enzyme activities.
Animals ; Arrhythmias, Cardiac ; drug therapy ; etiology ; Disease Models, Animal ; Drugs, Chinese Herbal ; therapeutic use ; Male ; Myocardial Reperfusion Injury ; complications ; Rats ; Rats, Wistar