1.Self-renewal-based period issued on library Website interactive platform
Chinese Journal of Medical Library and Information Science 2017;26(1):58-62,67
The self-book renewing information in medical library was classified, which showed that the 3 months in a year and the period in a day with the largest number of readers who visited the medical library Website were characterized by their rigid need. In addition, the evidence was provided for the issuing time of information on li-brary information issuing platform in order to optimize the popularizing effect of library.
2.Measurement of Perihematomal Cerebral Blood Flow in Intracerebral Hemorrhage
International Journal of Cerebrovascular Diseases 2006;0(11):-
Neuroimaging technology is the major means in the study of cerebral blood flow. This article reviews all kinds of neuroimaging technologies in identification of perihematomal penumbra in intracerebral hemorrhage,as well as the research status of perihematomal cerebral blood flow in intracerebral hemorrhage.
3.Clinical effect of capsule membrane phacoemulsification and capsular bag in phacoemulsification in treatment of hard nuclear cataract with high myopia
International Eye Science 2016;16(11):2022-2025
AIM:To explore the clinical effect of capsule membrane phacoemulsification and capsular bag in phacoemulsification in treatment of hard nuclear cataract with high myopia.
METHODS:A total of 297 patients(322 eyes) with hard nucleus cataract(Ⅳ-Ⅴ grade nucleus) and high myopia were selected from Mar. 2014 to Mar. 2016 in our hospital. They were randomly divided into the observation group with 149 cases(162 eyes) and the control group with 148 cases(160 eyes). The observation group received capsule membrane phacoemulsification and the control group received capsular bag in phacoemulsification. The therapeutic effect and safety of patients in two groups were compared. The comparison of phacoemulsification time, energy parameters and corneal endothelial cell density used t-test, post-operative visual acuity and the occurrence of complications were tested by Chi-square test.
RESULTS: The harder the nucleus was, the longer the phacoemulsification time and higher the average phacoemulsification energy was, and the differences were statistically significant(P<0. 05). The phacoemulsification time and energy parameters of the observation group were significantly lower than that of the control group( P<0. 05 ). One month after operation, the postoperative visual acuity in two groups was significantly higher than the visual acuity at 1d after operation(P<0. 05). But there was no statistical significance on the visual acuity at 1mo after operation between two groups ( P> 0. 05 ). After operation, the density of corneal endothelial cell in two groups was significantly lower than the density before operation ( P < 0. 05 ). But there was no statistical significance on the density of corneal endothelial cell after operation between two groups ( P > 0. 05 ). The intraoperative complication rate of observation group was significantly lower than that of the control group ( P<0.05 ) , but there was no statistical significance on postoperative complication rate between two groups ( P>0. 05). CONCLUSION: For the treatment of hard nuclear cataract with high myopia, capsule membrane phacoemulsification and capsular bag in phacoemulsification have similar effect, but capsule membrane phacoemulsification has better safety.
6.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
7.Immunoadsorption preventing hyperacute rejection of highly sensitized recipients of renal allografts
Weiguo SUI ; Qiang YAN ; Li DONG
Chinese Journal of Organ Transplantation 1996;0(04):-
Objective To investigate immunoadsorption in the prevention of hyperacute rejection in highly sensitized recipients of renal allografts.Methods Immunoadsorption treatment was performed on 10 patients whose panel reactive antigen (PRA) was more than 40 %. The adverse effect and hyperacute rejection were observed.Results Two cases of acute rejection of renal allografts were found in highly sensitized recipients and reversed by the therapy of immunoadsorption and adjusting immuno-suppressive drugs.Conclusion Immunoadsorption treatment could effectively and safely prevent highly sensitized recipients from hyperacute rejection post-transplantation.
8.Toxic Effects of Rotenone on Substantia Nigra of Rats
Yan SAI ; Qiang WU ; Zhaojun DONG
Journal of Environment and Health 1989;0(06):-
Objective To study the toxic effects of rotenone on substantia nigra of rats. Methods Rotenone was given subcutaneously once a day during 28 days. Substantia nigra was dissected. Morphology of dopamine neuron, synapse and myelin sheath were observed. SOD and GSH-Px activity were assayed; MDA and GSH contents were measured. Results Autonomic activities of rats decreased, similar to Parkinson's Symptoms. Morphology of dopamine neuron changed, synapse structures were abnormal, synapse vesicals increased and myelin sheath degenerated. MDA content increased (P
9.Effects of 915 MHz Electromagnetic Fields on the Concentration of Neurotransmitters in the Brain Tissue of the Mice
Yan WANG ; Zhaojin CAO ; Qiang WANG
Journal of Environment and Health 2007;0(10):-
0.05). Conclusion After exposing to the 915 MHz electromagnetic fields, the changes of the concentration of monoamine neurotransmitters in the cerebral cortex and hippocampus, and the changes of the concentration of Ach in the remnant brain tissue could not be found.
10.Effect of rotenone on dopamine transporters in the substantia nigra of rats
Yan SAI ; Qiang WU ; Yunpeng LI
Medical Journal of Chinese People's Liberation Army 1982;0(01):-
Objective To investigate the toxic effects of rotenone on dopamine transporter in the substantia nigra of the rat. Methods Rats (male) were divided into normal control group, vehicle control group and rotenone experimental group(1.0mg/kg and 1.5mg/kg). The animals were subcutaneously administrated with the vehicle or rotenone in different dosage once a day for 28 days. One day after last injection, the brain was dissected and the substantia nigra was harvested. Protein expressions of tyrosine hydroxylase and dopamine transporter were determined with the methods of immunohistochemistry and Western blot. The mRNA expressions of dopamine transporter and dopamine receptor were detected with RT-PCR respectively. The activity of Na+-K+-ATPase was assayed biochemically. Results In the experimental groups, both the immune positive neurons of tyrosine hydroxylase and the expression of its protein were significantly decreased in the substantia nigra of the rats after rotenone treatment. The number of dopamine transporter antibody-immune positive neurons were significantly increased in the rats exposed to rotenone. Furthermore, protein and mRNA expressions of dopamine transporter in the experimental group were also obviously up-regulated compared with the normal control group. A decreased activity of Na+-K+-ATPase was observed in the substantia nigra of rats in the rotenone experimental group. In addition, the mRNA expression of D2R was also increased in contrast with that in the control group. Conclusions Rotenone is toxic to dopamine neurons in the substantia nigra of rats. Dysfunction of dopamine transporter may be involved in the mechanism of rotenone toxicity to dopamine neurons.