1.Effect of Eliminating Pyrogens with Ultrafiltration on Quality of Chuanshentong Injection
Chinese Traditional Patent Medicine 1992;0(05):-
Objective: To study the effect of eliminating pyrogen with ultrafiltration on the quatity of Chuanshentong Injection. Methods: The sample solution was filtered with the ultrafiltration membranes of molecular weight 6000 and 20000. Then,the results of eliminating pyrogens and the examination results of quality of sample solution before and after ultrafiltration were compared.Results: The results of elminating pyrogens is satisfactory. But there are larger changes in many items of quality markers after ultrafiltration. Conclusion: Therefore, the ultrafiltration should be used with caution in eliminating pyrogens of injection of Chinese medicinals.
2.Preliminary study of P300 topography mapping in patients with closed craniocerebral trauma
Xiangdong ZHAO ; Yun LING ; Meilian ZHANG
Journal of Clinical Neurology 1988;0(02):-
Objective To investigate changes of the visual P300 topography mapping in patients with closed craniocerebral trauma.Methods The visual P300 topography mapping was recorded from 103 patients with closed craniocerebral trauma and 66 normal subjects with a medicide-03E brain evoked potential instrument. Results The P300 latency in patient group was significantly prolonged as compared with the control group ( P
3.Study on the inhibition of telomerase activity and regulated mechanism in human cancer cell by Icarrin
Ling ZHANG ; Yun WANG ; Haiting MAO
Chinese Journal of Immunology 1985;0(03):-
Objective:To study inhibited tecomerase activity of HL-60 cells in human cancer cell by Icarrin(ICA) and its mechanism.Methods:MTT assay,NBT assay, TRAP-PCR,RT-PCR assay,Flow Cytometry.Results:ICA inhibited telomerase activity in HL-60 cells significantly.It was negative correlation between telomerase activity and the expression ratio of CD11b antigen in HL-60 cells.It can induced HL-60 cells to differentiate into mature granulocytes.It can changed cell cycle distribution of HL-60 cells,which was reflected by the accumulation of the vast majority of cells in the G0/G1phase and the loss of cells in the S phase. It can downregulated cell proliferation related gene c-myc;upregulated p21 gene protein and mRNA expression.Conclusion:This study proved mechanism of ICA on inhibited telomerase activity from gene-protein-effect of cell level in HL-60 cells.
4.The study of enriching peripheral circulating carcinoma cells in colorectal cancer patients by magnetic activated cell sorting
Zhihai PENG ; Fang ZHANG ; Yun LING
Chinese Journal of General Surgery 1993;0(01):-
ObjectiveTo enrich and quantitatively analyze peripheral circulative carcinoma cells by magnetic activated cell sorting (MACS) in colorectal cancer patients.MethodsBlood samples, preoperatively collected from 21 patients with colorectal cancer and 9 healthy volunteers, were labeled by anti-cytokeratin (CK) with magnetic microbeads, and passed through magnetic columns; CK +carcinoma cells were separated from the samples, and quantified by flow cytometry.ResultsCK +CD45 -cells could not be detected from the samples without MACS; in the sample undergoing MACS, the concentrations of CK +CD45 -cells were significantly higher in patient group than in control group(P
5.Expression of MT-1 and MT-2 Genes in Liver of Chronic Exposure to Inorganic Arsenate Mice
Journal of Environment and Health 2007;0(10):-
Objective To investigate the effect of MT-1 and MT-2 in liver damage in chronic inorganic arsenate exposure mice and to explore the mechanism of arsenic-induced liver damage. Methods The male Kunming mice were randomly divided into control and exposed groups. The control group was given ordinary feed and tap water. The exposed group was given ordinary feed and 300 mg/L of sodium arsenite solution by drinking water. After 10 months of treatment, the activity of serum alanine aminotransferase (ALT), aspartate aminotransferase(AST) and globulin (Glb) content were determined. The total RNA was extracted by the TRIzol-phenol-chlorofor-method from the liver tissue. The quantity of the RNA was determined by spectrophotometry and its purity was judged at a ratio of A260/A280. Then real-time PCR(RT-PCR) was used to measure the mRNA expression of MT-1 and MT-2. Results Compared with the control group, serum ALT, AST activity and Glb content were higher and the MT-1 and MT-2 mRNA content was lower in the exposed group (P
6.Effects of fluoride on the expression of c-fos in mouse fibroblast and osteoblast
Ling, QI ; Xiu-yun, ZHANG ; Hui, XU ; Ling, JING
Chinese Journal of Endemiology 2009;28(2):130-133
Objective To observe the expression of c-fos mRNA and protein in fluoride treated mouse fibroblast (FB) and osteoblast (OB) and to further explore the effects of c-fos in the osteogenic action of FB. Methods Mouse FB and OB were divided into control group and six fluoride groups (0, 0.0001, 0.0010, 0.1000, 1.0000, 10.0000,20.0000 mg/L F-), and the levels of c-fos protein at 2,4,24,48,72 h and c-fos mRNA at 48 h were measured by using ELISA and RT-PCR methods. Results Compared with the control group, fluoride increased the content of c-fos protein obviously in all FB group(P<0.01); and it is increased in 0.0001,0.0010 mg/L groups at 48 h (0.73±0.04, 0.64±0.14) and 0.0001 mg/L group at 72 h(0.70±0.17) in OB compared with the control group (0.32±0.04,0.27±0.05, P<0.01). Compared with the control group (0.95±0.11), RT-PCR revealed an increasing tendency of the expression of c-fos mRNA at 48 h in FB (1.06±0.16, 1.06±0.12,1.12±0.16,1.04±0.15,1.04±0.10,1.15±0.29), but the difference was not statistically significant(P>0.05); however, a statistically significant difference(P<0.01) of c-fos mRNA in 20.0000 mg/L group(1.40±0.17) in O B was found compared with the control group (1.06±0.06). Conclusion The higher expression of c-fos mRNA and protein in FB induced by fluoride may play an important role in the transformation of osteoblastic phenotype as well as increase the osteogenesis ability in FB.
7.Study on characteristics of pharmacological effects of traditional Chinese medicines distributing along lung meridian based on medicinal property combination.
Hao GU ; Yan-Ling ZHANG ; Yun WANG ; Yan-Jiang QIAO
China Journal of Chinese Materia Medica 2014;39(13):2400-2403
OBJECTIVEMedicinal properties are the basic attribute of traditional Chinese medicines (TCM), while the medicinal property theory is the core theoretical foundation of TCM formula combination. In this particle, authors studied the characteristics of pharmacological effects of property combination of traditional Chinese medicines distributing along meridians, with the aim to introduce the medicinal property combination regularity into the design and optimization process of compound TCMs, and bring the medicinal property theory into full play in guiding the formula combination.
METHODIn this paper, TCMs distributing along "the lung meridian" was taken for example. The medicinal property combinations of TCMs distributing along "the lung meridian" recorded in Pharmacopeia (2010) was collected and processed. Besides, Chinese journal full-text database (CNKI) was used to collect all of pharmacological study literatures concerning the above TCMs that have been published since 1980. The pharmacological information was also supplemented by reference to Science of Chinese Materia Medica and Clinical Science of Chinese Materia Medica.
RESULTTCMs distributing along the lung meridian with different properties and tastes showed significant differences in pharmacological effects. For example, mild-sweet-lung medicines could lower blood sugar levels, decrease anoxia and enhance immunity; Mild-bitter-lung medicines showed anti-bacterial, anti-hypertension, anti-oxidation effects; Hot-sweet-lung medicines showed antibechic and anti-bacterial effects. And Hot-bitter-lung medicines showed phlegm eliminating and anti-inflammatory effects. Meanwhile, TCMs distributing along the lung meridian had similar pharmacological characteristics, such as anti-bacterial and anti-inflammatory effects, which is consistent with lung's feature in susceptibility to exogenous pathogenic factors.
CONCLUSIONIn this study, authors discovered pharmacological characteristics of different TCMs distributing along the lung meridian, which links TCM theory with modern study achievements and lays a foundation for establishing a TCM property formula combination system.
Databases, Factual ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; Humans ; Lung ; drug effects ; Lung Diseases ; drug therapy ; Meridians
8.Systematic view on medicinal property theory based on self-similarity principle.
Bin YUAN ; Yan-Ling ZHANG ; Yun WANG ; Yan-Jiang QIAO
China Journal of Chinese Materia Medica 2014;39(13):2371-2374
Studies on the prescription combination regularity based on medicinal tastes focus on the internal relations between the structure and hierarchy of the prescription combination system. In this paper, with the systematic and scientific self-similarity theory as the core ideology, authors systematically interpreted the self-similarity theory of medicinal properties, defined the self-similarity of prescriptions with identical or similar medicinal properties, and built the systematic view of medicinal property theory based on the prescription combination based on the entity grammar system. As a result, the system was conducive to integrating traditional Chinese medicinal knowledge of syndromes, therapeutic principles, efficacies, medicinal properties and tastes and achieving the automatic design and optimization process from symptoms to prescriptions, and providing scientific and feasible methods and technical systems for the application of the medicinal property theory, with a guiding significance to the technology, methodology and theory of decoction pieces compatibility, component compatibility and compound medicine design.
Drug Combinations
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Drug Prescriptions
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Drugs, Chinese Herbal
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chemistry
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pharmacology
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Humans
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Medicine, Chinese Traditional
9.Roles of MyD88 and TRIF in cardiac dysfunction during sepsis
Yun ZHU ; Ming ZHANG ; Minzhi OUYANG ; Dan ZHOU ; Ling LI
Chinese Critical Care Medicine 2017;29(8):684-688
Objective To investigate the roles of myeloid differentiation factor 88 (MyD88) and TIR domain-containing adaptor inducing interferon-β (TRIF) in sepsis-induced myocardial dysfunction, and to analyze whether strain rate (SR) can be early sensitive evaluation for septic heart failure.Methods Sixty-four healthy male C57BL/6 mice were divided into four groups by random number table (n = 16 in each group): sham group, cecum ligation and puncture (CLP)-induced sepsis model group, anti-MyD88 group and anti-TRIF group. The anti-MyD88 group and anti-TRIF group were injected with 5μL/g of anti-MyD88 antibody or anti-TRIF antibody through the tail veins 2 hours before CLP. Eight animals in each group were used to observe the survival of 24 hours, and the other 8 myocardial tissues were harvested for examination. The cardiac function was evaluated by echocardiography before and 6 hours and 12 hours after operation. The mRNA expressions of MyD88, TRIF and inflammatory factors in myocardium were measured by polymerase chain reaction (PCR) at 24 hours after operation, and the degree of neutrophils infiltration was detected by myeloperoxidase (MPO) activity.Results The number of 24-hour survive in anti-MyD88 group and anti-TRIF group were higher than that in CLP group (number: 4, 3 vs. 2,P = 0.044,P = 0.047). Compared with sham group, the cardiac function was significantly decreased, the mRNA expressions of myocardial tissues MyD88, TRIF, interleukin (IL-1, IL-6) and tumor necrosis factor-α (TNF-α) were significantly increased, and the infiltration of neutrophils were obvious in CLP group. Compared with CLP group, the left ventricular short axis fractional shortening rate (FS) and SR were significantly increased after 12 hours in anti-MyD88 group and anti-TRIF group [FS: (49.52±1.78)%, (49.89±1.49)%vs. (41.11±1.63)%, SR (s-1): 17.63±2.16, 17.85±1.64 vs. 12.55±1.84]; the mRNA expressions of MyD88, TRIF and inflammatory factors were significantly decreased [MyD88 mRNA (A value): 0.463±0.046, 0.505±0.048 vs. 0.638±0.102, TRIF mRNA (A value): 0.413±0.031, 0.410±0.021 vs. 0.625±0.057, IL-1 mRNA (A value):0.569±0.101, 0.570±0.091 vs. 0.946±0.171, IL-6 mRNA (A value): 0.551±0.143, 0.431±0.157 vs. 0.850±0.194, TNF-α mRNA (A value): 0.471±0.082, 0.444±0.093 vs. 0.707±0.094]; and the infiltration of neutrophils were significantly decreased [MPO (U/L): 62.34±2.60, 60.87±2.40 vs. 73.83±4.90], with statistically significant differences (allP < 0.05). There was no statistical difference in above parameters between the anti-MyD88 group and anti-TRIF group (allP > 0.05).Conclusions Blocking MyD88 and TRIF expression play significant and similar roles in protecting cardiac deterioration from sepsis by attenuating cytokine release, reducing neutrophil infiltration. SR can sensitively assess septic cardiac dysfunction.
10.Reversion of Transforming Growth Factor ?_2 Mediated Immunosuppression in Lung Cancer by Icarrin
Xiaoyan LI ; Ling ZHANG ; Yun WANG ; Haiting MAO ; Shulin CUI
Chinese Journal of Cancer Biotherapy 1995;0(02):-
Objective: To investigate the influence of Icarrin(ICA) on transforming growth factor ?2(TGF?2) expression by PG cells and the mechanisms of reversion of TGF?2 mediated immunosuppression by ICA.Methods: Cell proliferation and cytotoxici- ty were assayed by MTT assay. mRNA level of TGF?2 and perforin was detected by RT-PCR assay. assay.Expression of TGF?2 and IL- 2R? was analysed by folw cytometry assay. Results: ICA could inhibit the protein and mRNA expression of TGF?2 in PG cells. It could also reverse the supressed cytotoxicity of LAK, CD3AK cells by TGF?2. The IL-2R? expression on LAK and perforin gene transcription and proliferation of CD3AK inhibited by TGF?2 were also partly recovered. Conclusion: The anti-anti-tumor activity of ICA is at least partly due to its capability of inhibiting TGF?2 expression in tumor cells and restoring the cytotoxicity of immunocompetent cells inhibited by TGF?2.