1.Variance analysis of circulation demand resources deployment in library-taking the Chongqing Medical University as an example
Lu CHEN ; Danmei XIE ; Lei JIN ; Huiqun LV ; Chunguang WENG
Chinese Journal of Medical Education Research 2011;10(8):1011-1013
Bibliometrics analysis has been made on the statistics of Chinese books circulation and order data through Chongqing Medical University. Goldlib Library Management System. And analysis relativity and variation between circulation needs and resource allocation for the past 10 years has also been made.
2.Effect of total flavonoids of turpinia arguta seen on immune function in adjuvant arthritis rats in vitro
Lei ZHANG ; JUN ; Shi-Chun YU ; Yong JIN ; Xiong-Wen LV ; Lei PENG ;
Chinese Pharmacological Bulletin 1987;0(01):-
Aim To study the effect of the total flavonoids of turpinia arguta seen (TFS) on immune function of rats with adjuvant arthritis. Methods Adjuvant arthritis (AA) was induced on d0 by intradermal injection of Complete Freund′s Adjuvant (FCA), containing 10 mg heat-inactive BCG in 1ml paraffin oil. On d 28 after immunization, AA rats were killed by cervical decollation. Immune cells (splenocytes and peritoneal macrophages) were obtained, then cultured in vitro with TFS. Some immune indexes were detected respectively such as the splenocytes proliferation and the productions of IL-1 and IL-2 were measured by the method of cell proliferation, the production of prostaglandin E2 was determined by radioimmunoassay. Results Compared with normal groups, the response of splenocytes to ConA and LPS was lowered, IL-2 syn-thesis was decreased, and IL-1 and PGE_2 released from PM? were elevated. TFS (10~ -8 ~10~ -4 mg?L~ -1 ) not only increased splenocytes proliferation, which induced by ConA and LPS, and IL-2 production of splenocytes, but also reduced the elevated productions of IL-1 and PGE_2 released from peritoned macrophate in AA rats in vitro. Conculsion TFS could adjust abnormal immune function in AA rats.
3.Long non-coding RNA SPRY4-IT1 expression in esophageal squamous cell carcinoma and its effects on cell growth
Haiwei XIE ; Fangjun CHEN ; Bin ZHU ; Gang CAO ; Lei JIN ; Guozhi ZHOU ; Jin LV ; Xiufeng CAO
Chinese Journal of Clinical Oncology 2013;(17):1011-1015
Objective:This study aimed to clarify the correlation of SPRY4-IT1 expression with the clinicopathological character-istics and prognosis of patients with esophageal squamous cell carcinoma (ESCC), as well as the role of SPRY4-IT1 in promoting ES-CC cell growth. Methods:Quantitative real-time polymerase chain reaction for SPRY4-IT1 expression was performed on 50 paired can-cerous and adjacent non-cancerous esophageal specimens. Small interfering RNA was used to suppress SPRY4-IT1 expression to fur-ther explore its role in tumor progression. Cell viability was tested in vitro by MTT assay (OD=490 nm), and cell apoptosis and cell cy-cle were investigated by flow cytometry. Results:We found markedly elevated SPRY4-IT1 expression in cancerous tissues compared with adjacent non-cancerous tissues (90%, P<0.01). Relative SPRY4-IT1 expression levels were correlated with some clinicopathologi-cal characteristics, such as tumor size (χ2=5.333, P=0.021), elevated TNM (2009) stage classi fi cation (χ2=5.556, P=0.018), and de-creased overall survival rates (χ2=5.296, P=0.021). SPRY4-IT1 expression level was not correlated with patient age, gender, smoking status, or alcohol consumption (all P>0.05). Further experiments showed that SPRY4-IT1 expression levels were significantly higher in three ESCC cell lines than in the normal human esophageal epithelial cell line Het-1A. In vitro assays of the ESCC cell line KYSE30 demonstrated that knockdown of SPRY4-IT1 expression by small interfering RNA reduced cell growth, mediated cell cycle arrest at the G0-G1 phase, and promoted cell apoptosis (all P<0.01). Conclusion:SPRY4-IT1 was overexpressed in ESCC tissues and ESCC cell lines and promoted the growth of ESCC cells. The dysregulated expression of long non-coding RNA SPRY4-IT1 may play an important role in the process of ESCC development and may be developed as a useful biomarker for the diagnosis and prognosis of ESCC.
4.Discussion on Physiology Teaching to Foreign Students
Chunmei LV ; Hongbo JIN ; Ying ZHANG ; Yongbin YANG ; Lei YANG ; Shuzhen WANG
Chinese Journal of Medical Education Research 2002;0(01):-
The article is to discuss the physiology teaching methods for the foreign students.The teaching effect can be highly improved by preparing well before the class,reforming teaching methods and renovating systems of review and examination.
5.Risk factor and angiograph comparison of myocardial infarction between Chinese and Australians
Lei LV ; Shi-Sen JIANG ; Zhe-Yong HUANG ; Dong-Jin XU ;
Journal of Medical Postgraduates 2003;0(06):-
Objective:To compare the cardiovascular risk factors and the characteristics of coronary lesion between Chinese and Australian patients with myocardial infarction(MI). Methods:Five hundred and seventy-eight Chinese and 399 Australian MI patients received selective coronary angiography after hospitalization.The cardiovascular risk factors and coronary angiograms were compared and analyzed.Results:Five hundred and fifty Chinese cases(95.16%)and 376 Australian cases(94.24%)showed angiographically coronary stenosis.The comparing results of MI cases between Chinese and Australians were as follows:the percentage of patients below 40 years old,2.08% vs 6.02%(P0.05);the percentage of patients with three vessel disease and total occlusion,32.87% vs 24.31% and 45.50% vs 32.33%,respectively(P
6.Effect of extracts from Dendrobii ifficinalis flos on hyperthyroidism Yin deficiency mice.
Shan-shan LEI ; Gui-yuan LV ; Ze-wu JIN ; Bo LI ; Zheng-biao YANG ; Su-hong CHEN
China Journal of Chinese Materia Medica 2015;40(9):1793-1797
Some unhealthy life habits, such as long-term smoking, heavy drinking, sexual overstrain and frequent stay-up could induce the Yin deficiency symptoms of zygomatic red and dysphoria. Stems of Dendrobii officinalis flos (DOF) showed the efficacy of nourishing Yin. In this study, the hyperthyroidism Yin deficiency model was set up to study the yin nourishing effect and action mechanism of DOF, in order to provide the pharmacological basis for developing DOF resources and decreasing resource wastes. ICR mice were divided into five groups: the normal control group, the model control group, the positive control group and DOF extract groups (6.4 g · kg(-1)). Except for the normal group, the other groups were administrated with thyroxine for 30 d to set up the hyperthyroidism yin deficiency model. At the same time, the other groups were administrated with the corresponding drugs for 30 d. After administration for 4 weeks, the signs (facial temperature, pain domain, heart rate and autonomic activity) in mice were measured, and the facial and ear micro-circulation blood flow were detected by laser Doppler technology. After the last administration, all mice were fasted for 12 hours, blood were collected from their orbits, and serum were separated to detect AST, ALT, TG and TP by the automatic biochemistry analyzer and test T3, T4 and TSH levels by ELISA. (1) Compared with the normal control group, the model control group showed significant increases in facial and ear micro-circulation blood flow, facial temperature and heart rate (P < 0.05, P < 0.01), serum AST, ALT (P < 0.01), T3 level (P < 0.05), TSH level (P < 0.05) and notable deceases in pain domain (P < 0.01), TG level (P < 0.01). (2) Compared with the model control group, extracts from DOF (6 g · kg(-1)) could notably reduce facial and ear micro-circulation blood flow, facial temperature and heart rate (P < 0.05, P < 0.01) and AST (P < 0.05) and enhance pain domain (P < 0.01) and TG (P < 0.01). Extracts from DOF (4 g · kg(-1)) could remarkably reduce AST and ALT levels (P < 0.01, 0.05). Extracts from DOF (6 g · kg(-1) 4 g · kg(-1)) could significantly reduce T3 and increase serum TSH level (P < 0.05). DOF could improve Yin deficiency symptoms of zygomatic red and dysphoria in mice as well as liver function injury caused by overactive thyroid axis. According to its action mechanism, DOF may show yin nourishing and hepatic protective effects by impacting thyroxin substance metabolism, improving micro-circulation and reducing heart rate.
Animals
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Dendrobium
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chemistry
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Drugs, Chinese Herbal
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administration & dosage
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Female
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Flowers
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chemistry
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Humans
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Hyperthyroidism
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drug therapy
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metabolism
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Male
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Mice
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Mice, Inbred ICR
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Phytotherapy
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Thyroxine
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metabolism
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Yin Deficiency
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drug therapy
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metabolism
7.Determination of 13 kinds of bile acid in healthy people and patients with primary liver cancer by HPLC-MS
Lei LV ; Liang ZHAO ; Hongtao LAN ; Rounan JIN ; Guoqing ZHANG
Journal of Pharmaceutical Practice 2014;(4):270-272,293
Objective To develop a method for determination of 13 kinds of bile acid in healthy people and patients with pri-mary liver cancer by HPLC-MS.Methods Acetonitrile was used to precipitate protein in plasma samples .The separation was per-formed on a SHISEIDO MG C18 reverse phase column (3.0 mm ×100 mm,3μm).The mobile phase were acetonitrile and water (con-taining 0.1%formic acid and 0.5%ammonia), gradient elution.The flow rate was 0.4 ml/min, the temperature of column was 25℃and the injection volume was 5 μl.Electrospray ion source (ESI) and selected ion mode (SIM) were applied for quantitative analysis under negative ion mode .Results The calibration curves of 13 kinds of bile acids were linear in the range of 3.3-4 400 ng/ml, intra-day and inter-day precision results were all less than 7%, the average recovery were 82.67%-109.75%.The result showed that the content of conjugated bile acid increased in the plasma of patients with primary liver cancer compared with the healthy control group , especially in TUDCA, TCDCA, TCA, GCA and GCDCA.Conclusion The LC -MS method was sensitive and selective which could be suitable for determination of bile acid in healthy people and patients with primary liver cancer .The study laid a foundation for the me-tabolism of bile acid in vivo and the clinical diagnosis and treatment of patients with hepatocellular carcinoma .
8.A strategy of screening and binding analysis of bioactive components from traditional Chinese medicine based on surface plasmon resonance biosensor
Lv DIYA ; Xu JIN ; Qi MINYU ; Wang DONGYAO ; Xu WEIHENG ; Qiu LEI ; Li YINGHUA ; Cao YAN
Journal of Pharmaceutical Analysis 2022;12(3):500-508
Elucidating the active components of traditional Chinese medicine(TCM)is essential for understanding the mechanisms of TCM and promote its rational use as well as TCM-derived drug development.Recent studies have shown that surface plasmon resonance(SPR)technology is promising in this field.In the present study,we propose an SPR-based integrated strategy to screen and analyze the major active components of TCM.We used Radix Paeoniae Alba(RPA)as an example to identify the compounds that can account for its anti-inflammatory mechanism via tumor necrosis factor receptor type 1(TNF-R1).First,RPA extraction was analyzed using an SPR-based screening system,and the potential active in-gredients were collected,enriched,and identified as paeoniflorin and paeonol.Next,the affinity con-stants of paeoniflorin and paeonol were determined as 4.9 and 11.8 μM,respectively.Then,SPR-based competition assays and molecular docking were performed to show that the two compounds could compete with tumor necrosis factor-α(TNF-α)while binding to the subdomain 1 site of TNF-R1.Finally,in biological assays,the two compounds suppressed cytotoxicity and apoptosis induced by TNF-α in the L929 cell line.These findings prove that SPR technology is a useful tool for determining the active in-gredients of TCM at the molecular level and can be used in various aspects of drug development.The SPR-based integrated strategy is reliable and feasible in TCM studies and will shed light on the eluci-dation of the pharmacological mechanism of TCM and facilitate its modernization.
9.Detection of molecular markers of amantadine resistance in avian influenza viruses by pyrosequencing.
Hua-lei LIU ; Yan LV ; Dong-xia ZHENG ; Yun-ling ZHAO ; Cheng-ying SUN ; Wei ZHANG ; Jin-ming LI ; Zhi-liang WANG
Chinese Journal of Virology 2010;26(5):392-395
Mutation in any of five key amino acid residues (at positions 26, 27, 30, 31 and 34) within the M2 protein of influenza A viruses leads to resistance against the amantodine class of anti-influenza drugs. In this study, a pyrosequencing method was described to rapidly detect established five molecular markers of resistance to M2 blockers, amantadine. The residues L26, V27, A30, S31 and G34 in the M2 protein were targeted for pyrosequencing, and 94 avian influenza viruses were used to perform the amantadine resistance analysis. Our results showed that most of avian influenza viruses were amantadine resistant, Mutations V27I and S31N were founded in these isolates.
Amantadine
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therapeutic use
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Animals
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Antiviral Agents
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therapeutic use
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Chickens
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Drug Resistance, Viral
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genetics
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Influenza A virus
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drug effects
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genetics
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Influenza in Birds
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drug therapy
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virology
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Reverse Transcriptase Polymerase Chain Reaction
10.Influence of 1, 2-dichloroethane on open field behavior and levels of neurotransmitters in brain of mice.
Ying QI ; Lei SHI ; Lan-Yue GAO ; Gao-Yang WANG ; Ge-Xin LI ; Xiu-Qiang LV ; Ya-Ping JIN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2011;29(6):413-416
OBJECTIVETo explore the effects of 1,2-dichloroethane (1,2-DCE) on the behavior and the brain neurotransmitter levels in mice.
METHODSThirty mice were randomly divided into four groups, which were control group and groups of low, middle and high exposure (225, 450 and 900 mg/m3) to 1,2-DCE for 10 days (3.5 h a day) by inhalation. After the last exposure, the open field test was performed immediately. After exposure all mice were killed and the brain tissues were taken up rapidly. The levels of aspartate (Asp), glutamate (Glu) and gamma-aminobutyric acid (GABA) in the brain were detected by high performance liquid chromatography (HPLC).
RESULTSLevels of Asp and Glu in all exposure groups increased with doses. As compared to the control group, levels of Glu in all exposure groups increased significantly (P < 0.05). Levels of GABA in the low exposure group were significantly lower than those in control group, but those in the high exposure group were significantly higher than those in control group. The results of the open field test showed that effect of low exposure to 1,2-DCE on the behavior was stimulant, but the high exposure to 1,2-DCE inhibited behavior of exploration, excitement and sport.
CONCLUSIONSSubacute exposure to 1,2-DCE could result in the change of amino acid neurotransmitter content and ratio in the brain, thereby change the behavior of mice appeared, which might be the mechanism of neurotoxicity caused by 1,2-DCE in part.
Animals ; Aspartic Acid ; analysis ; Behavior, Animal ; drug effects ; Brain ; metabolism ; Ethylene Dichlorides ; toxicity ; Female ; Glutamic Acid ; analysis ; Mice ; Mice, Inbred Strains ; Neurotransmitter Agents ; metabolism ; gamma-Aminobutyric Acid ; analysis