1.Rodent models for experimental heat stroke research.
Yong-Qi ZHAO ; Fei ZOU ; Ming FAN
Chinese Journal of Applied Physiology 2013;29(6):534-537
Because of the aggressive threaten of heat stroke and a lack of understanding of the mechanism of action, mammal animal models for experimental heat stroke were well developed. During the past 5 decades, anesthetized mouse, rat, rabbit, dog, baboon and monkey were used as animal model for experimental heat stroke. However, anesthetized mammals models have some limitations, such as neuroprotective effect of anesthetic agents, possible disturbance on injury and recovery of stroke animals by anesthetic agents, difficulty of discussing animal behavior before and after heat stroke, it was also difficult for the models to evaluate cognitive function of animal under hot environment. Considering humanitarian, only awaked and unrestrained mouse heat stroke model was accepted so far. Therefore, we also developed an awaked and unrestrained rat heat stroke model, and found it was helpful to evaluate drug effectiveness for animal behavior and cognitive function under hot environment.
Animals
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Cognition
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Disease Models, Animal
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Heat Stroke
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physiopathology
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Mice
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Rats
3.Analysis of influencing factors on adverse reaction of Shengfu injection based on prospective active safety monitoring.
Zhi-fei WANG ; Wei ZHAO ; Yin ZHANG ; Yan-ming XIE
China Journal of Chinese Materia Medica 2015;40(24):4746-4751
This study collected demographic data, past history, personal history, family history, dosage, solvent, combined medication information of adverse reaction cases from a prospective, multi center, large sample intensive hospital monitoring, and found the influencing factors with cross-tab analysis. The results showed that in the medication group of 19-45, patients with allergic histories had a higher proportion in ADR; in the medication group of 46-65, male patients with allergic histories had a higher proportion in ADR; indication and non-indication group, patients of 19-45 years old, with combined medications and allergy histories had a higher proportion in ADR; Non-indication medication group, patients with combined medication, higher concentration, out-instruction solvent and dosage, had a higher proportion in ADR. So, the ADRs of Shenfu injection were related to the history of drug allergy, and also related to the indication, dosage, solvent, concentration when it was used.
Adult
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Aged
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Drug Hypersensitivity
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etiology
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Drugs, Chinese Herbal
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adverse effects
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Female
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Humans
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Injections
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Male
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Middle Aged
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Prospective Studies
4.Significance and analysis of unconcentrated urine sample from patients with pregnancy induced hypertension syndrome by protein electrophoresis
Xiao-Huan ZHAO ; Shi-Ming LV ; Yan ZHANG ; Fei ZHENG ;
Chinese Journal of Laboratory Medicine 2003;0(10):-
Objective To investigate the relationship between proteinuria components and the severity of pregnancy induced hypertension syndrome (PIH), the unconcentrated urine samples from patients with PIH were analyzed on proteinuria components by electrophoresis.Methods Proteinuria components were analyzed by sodium dodecyl sulfate-agarose gel electrophoresis (SDS-AGE) in unconcentrated urine samples from PIH patients (PIH group,n=114) and normal third trimester pregnant women (control group,n=110).Results Eleven kinds of urinary protein were detected in the PIH group and four in the control group. The results showed positive relationship between the urine protein component complexity and the severity of PIH (P
5.The diagnostic value of anti-mutated citrullinated vimentin antibody in patients with rheumatoid arthritis
Rui FENG ; Yong-Zhe LI ; Guan-Fei ZHAO ; Ming JIANG ;
Chinese Journal of Rheumatology 2003;0(11):-
Objective To investigate the significance of anti-mutated citrullinated vimentin(MCV)an- tibody in rheumatoid arthritis(RA)and study the correlation among anti-CCP,other antoantibodies and clinical manifestations of RA.Methods Anti-MCV antibody was detected by enzyme-linked immunosorbent assay (ELISA)in 166 serum samples including 74 from RA(18 cases with early RA and 56 cases with late RA),50 from non-RA rheumatic diseases and 42 cases of healthy blood donors.At the same time,other antuoantibod- ies were detected by different techniques,and their clinical meaning was investigated with the corresponding clinical data.Results Anti-MCV was found in 78%(58/74)of RA.The sensitivity and specificity of Anti- MCV in RA were 78% and 95%.The positive and negative predictive value was 97% and 71%.The average cut off concentration of Anti-MCV was(552?380)U/ml in RA,(162?63)U/ml in non-RA and(63?46)U/ml in healthy control.Anti-MCV was strongly correlated to anti-CCP(r=0.502,P=0.000),then AKA(r=0.408)anti APF(r=0.369).No differences was found between Anti-MCV and other clinical/laboratory parameters(P>0.05). Conclusion Anti-MCV antibody may be a valuable diagnostic parameter for RA.Anti-MCV is more strongly correlated to anti-CCP than APE and AKA.It may not relate to disease activity and/or severity.
6.In vitro anti-tumor activities and mechanisms of phenothiazines in combined treatment with temozolomide in human glioma cell lines
Xin WEN ; De-ming ZHAO ; Fei-hong CHEN
Acta Pharmaceutica Sinica 2024;59(4):918-929
In the study, to explore the anti-tumor effects and mechanisms of chlorpromazine (CPZ) and perphenazine (PPZ) combined with temozolomide (TMZ) on human glioma cell lines, we performed MTT assays to determine the growth inhibitory rate of CPZ, PPZ and TMZ in mono and combined treatments. The anti-tumor effects of CPZ and PPZ alone or in combination with TMZ were determined by colony formation, cell apoptosis, cell cycle arrest, reactive oxygen species (ROS) production and mitochondrial membrane potential (MMP) detection (JC-1). The expression level of p53 was detected by immunofluorescence assay. Furthermore, autophagy under different administrations was detected by flow cytometry and confocal imaging to explore the anti-tumor mechanism of CPZ and TMZ. Protein phosphatase 2A (PP2A), cancerous inhibitor of protein phosphatase 2A (CIP2A) and proto-oncogene protein (c-Myc) were detected by immunofluorescence assay, tumor stem cell markers (CD44, CD133) and aldehyde dehydrogenase (ALDH) were detected by flow cytometry to explore the anti-tumor mechanism of PPZ and TMZ. The results showed that after 72 h treatments of combinations, the values of half maximal inhibitory concentration (IC50) of TMZ on U87 and U251 cells were reduced, and the ability of TMZ to induce apoptosis and cycle arrest was improved. In addition, the combination of CPZ and TMZ could induce an increased effect of autophagy
7.Bioactivity of indolylpiperidine-piperazine derivatives on α1 -adrenoceptor-mediated inotropic response
Sufang LI ; Fei LIU ; Wei LIU ; Yue ZHAO ; Zhizhen LU ; Ming XU ; Youyi ZHANG
Chinese Journal of Pharmacology and Toxicology 2012;26(3):276-281
OBJECTIVE To investigate the blocking activities of a series of potential α1-adrenoceptor (α1-AR) antagonists (Compounds B1 -B9) on α1-AR.METHODS ① A series of potential α1-adrenoceptor (α1-AR) antagonists,indolylpiperidine derivative (IPD) and Compounds B1 -B9,with indolylpiperidine moiety and different substitutes were synthesized through the coupling of indolylpiperidine and piperazine derivatives.② Inotropic responses experiment was used to examine blocking effects of IPD and Compounds B1 - B9 in isolated rat atria by phenylephrine (PE) stimulation.③ Blocking effect of IPD and Compounds B1 - B9 on phosphorylation level of extracellular signal-regulated kinase (ERK) in PE treated HEK293 cells was tested by Western blotting.RESULTS ① Potential α1-adrenoceptor (α1-AR) antagonists with indolylpiperidine moiety and different substitutes were synthesized successfully.② PE caused a dose-dependent inotropic response which was inhibited by pre-incubation of phentolamine (Phen),a non-selective α1-AR antagonist,IPD and Compounds B1,B3,B4,B7,B8 and B9,respectively; IPD and Compounds B4 and B8 caused an obvious rightward shift of inotropic response-curve,the pA2 values for IPD and Compounds B4 and B8 were 6.72 ± 0.21,6.86 ± 0.29 and 6.67 ± 0.19,respectively.③ Phosphorylation level of ERK1/2 was inhibited by pre-incubation with Compounds B1,B2,B3,B5,B6,B7,B8 and B9 or IPD in PE treated α1A-AR stably expressed HEK293 cells; PE-stimulated phosphorylation level of ERK1/2 was inhibited by pre-incubation with Compounds B2,B4,B7 or B8 in α1B-AR stably expressed HEK293 cells.CONCLUSION Compound B4 has a selective blocking activity on α1B-AR,and Compounds B1,B3,B5,B6 and B9 or IPD have a selective blocking activity on the phosphorylation level of ERK1/2.
8.Synthesis and characterization of 9-O-alkyl substituted palmatine derivatives.
Zi-Ming LV ; Shao-Hua ZHAO ; Jun-Qing LIANG ; Peng-Fei TU
China Journal of Chinese Materia Medica 2014;39(4):699-703
For the establishment of chemical library of protoberberines provided for the bio-activity screening, the target compounds were synthesized by thermal degradation and nucleophilic substitution reactions with the bio-active alkaloid, palmatine (1), as the raw material, and their structures were identified and conformed by 1H-NMR and MS spectra. Among them, 13 compounds were new.
Berberine Alkaloids
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chemical synthesis
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chemistry
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Drugs, Chinese Herbal
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chemical synthesis
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chemistry
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Molecular Structure
9.Lignans from stems of Cistanche deserticola cultured in Tarim desert.
Ze-dong NAN ; Ming-bo ZHAO ; Yong JIANG ; Peng-fei TU
China Journal of Chinese Materia Medica 2015;40(3):463-468
In order to clarify the chemical constituents of Cistanche deserticola cultured in Tarim desert, a systematically phytochemical investigation was carried out. The chemical constituents were isolated by column chromatography, such as silica gel, Sephadex LH- 20, MCI gel, ODS and semi-preparative HPLC, and their structures were determined on the basis of MS, NMR spectroscopic analysis and/or comparison with literature data. Eleven lignans were isolated from the 85% ethanol extract of the stems of C. deserticola cultured in Tarim desert. Their structures were identified as (+)-syringaresinol-4'-O-β-D-glucopyranoside (1), (+)-isoeucommin A (2), eucommin A (3), (+)-pinoresinol monomethylether β-D-glucoside (4), lariciresinol 4'-O-β-D-glucopyranoside (5), lariciresinol 4-O-β-D-glucopyranoside (6), conicaoside (7), dehydrodiconiferyl alcohol 4-O-β-D-glucopyranoside (8), dehydrodiconiferyl alcohol γ'-O-β-D-glucoside (9), citrusin A (10), and alaschanioside A (11). Compounds 1, 3-7, 10 and 11 were isolated from this genus for the first time, and compounds 2, 8 and 9 were obtained from this species for the first time.
Cistanche
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chemistry
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growth & development
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Lignans
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chemistry
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isolation & purification
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Plant Stems
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chemistry
10.Influence of Ginkgo biloba extract on proliferation of ACC-2 cell, Survivin and TIP30 gene expression in adenoid cystic carcinoma of lacrimal gland.
Po NIU ; Xin-xia ZHAO ; Fei YAN ; Yong-ming ZHOU ; Peng JIAN
China Journal of Chinese Materia Medica 2014;39(24):4860-4864
Exploring the influence of extract of Ginkgo biloba (EGB) on the proliferation, apoptosis of ACC-2 cell in lacrimal adenoid cystic carcinoma and analyzing the influence of EGB on the gene expression of Survivin and TIP30 based on the levels of the gene and protein. ACC-2 cell in human with ACC of lacrimal gland disposed by EGB of different concentration was in vitro cultured. MTT method was used for cell proliferation detection. Annexin V/PI double-staining flow cytometer was used to detect cell apoptosis and cell cycle. Survivin and TIP30 gene expression together with protein expression were analyzed by RT-PCR and Western blotting. And it is indicated that EGB has inhibitory effect on the proliferation of ACC-2 cell in vitro. Furthermore, the dose-effect relationship was significant. Compared with the control group, it had statistical difference (P <0.01). The inhibitory concentration 50% (ICso) is 88 mg . L-1. By flow cytometer examination, it was indicated that EGB can gradually increase ACC-2 cell in G0-G1 stage and decrease it in G2-M and S stage. With the increase of dose, the apoptosis rate of ACC-2 cell obviously increased (P <0.05 or P <0.01). Both of the expression results of RT-PCR and Western hybrid proteins have showed that the concentration of EGB increased, it could be seen a significant decrease in Survivin gene expression (P <0.01). Meanwhile, the TIP30 gene expression got a significant increase. Therefore, EGB can effectively inhibit ACC-2 cell Survivin gene expression in human with adenoid cysistic carcinoma of larcrimal gland as well as promoting TIP30 gene expression, inducing the ACC-2 cell apoptosis and inhibiting tumor cell proliferation, which provided a certain theoretical and experimental basis for the application of Chinese herbal medicinal ingredient in the treatment of tumors.
Apoptosis
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drug effects
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Apoptosis Regulatory Proteins
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metabolism
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Carcinoma, Adenoid Cystic
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drug therapy
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Cell Cycle
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Cell Line, Tumor
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Cell Proliferation
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drug effects
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Drugs, Chinese Herbal
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Gene Expression
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Ginkgo biloba
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chemistry
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Humans
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Lacrimal Apparatus
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drug effects
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Plant Extracts
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chemistry
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isolation & purification
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pharmacology