1.Clinical laboratory tests of venous thromboembolism in obstetrics and gynecology
Chinese Journal of Laboratory Medicine 2017;40(3):149-151
Venous thrombotic disease is a serious disease,which impact on health and life-threatening.Pulmonary embolism and deep-vein thrombosis are the two components of a single disease called venous thromboembolism in obstetrics and gynecology.but it can be difficult to diagnose because clinical symptoms and signs are non-specific or absent in early venous thrombus embolism (VTE).It has great value that how to use the most economic,simple,efficient method for screened high-risk groups,timely and accurate laboratory diagnosis of VTE.
2.Application of CADD on multi-target drug R&D in natural products.
Lian-Sheng QIAO ; Yan-Ling ZHANG
China Journal of Chinese Materia Medica 2014;39(11):1951-1955
Multi-target drugs can simultaneously adjust multiple links of the disease network. Despite the higher efficacy and lower toxicity caused by single targets, multi-target drugs become ideal drugs for treating complicated diseases as well the main direction of drug R & D. By virtue of their structural diversity, higher multi-target activity and lower toxicity, natural products become an important source for developing multi-target drugs. Computer-aided drug design (CADD) is a commonly used multi-target drug R&D method, which mainly includes virtual screening and pharmacophore design. In this paper, the authors made a systematical analysis and discussed the prospects and advantages of various methods for multi-target drug R&D with natural products.
Biological Products
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chemical synthesis
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pharmacology
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Biomedical Research
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instrumentation
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Computer-Aided Design
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Drug Design
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Humans
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Molecular Targeted Therapy
3.The relationship of FOXM1 expression and the clinical pathological factors andclinical response to target-therapy in advanced non-small cell lung cancer
Yan ZHANG ; Wenbin QIAO ; Li SHAN
International Journal of Laboratory Medicine 2017;38(14):1913-1915
Objective To explore the expression of FOXM1 in non-small cell lung cancer(NSCLC) and the relationship between FOXM1 expression and the clinical pathological factors,clinical response to target-therapy in NSCLC remained unknown.Methods A total of 80 NSCLC patients were recruited into this study,FOXM1 expression was assessed by immunohistochemistry and analyzed with the clinical pathological factors and clinical response to target-therapy.Results The positive rate of FOXM1 expression was 41.25%.The positive expression of FOXM1 had no significant difference in patients with different age,gender,cancer staging,smoking history(P>0.05),but had significant difference in patients with different degree of differentiation,lymph node metastasis(P<0.05).Survival time in patients with positive FOXM1 expression was significant shorter than that with negative FOXM1 expression(P<0.05).Conclusion The expression of FOXM1 closely correlated with patients histological differentiation,lymph node metastasis,progress-free survival time in patients with positive FOXM1 expression was significantly shorter than those with negative FOXM1 expression.
4.Induction of Hyphal Form of Candida albicans in vitro by Two Culture Media
Yan JIN ; Hong ZHANG ; Jianjun QIAO
Chinese Journal of Dermatology 2003;0(08):-
Objective To compare 2 approaches with different culture media which induce hyphal form of Candida albicans.Methods Induction of hyphal form was conducted for 16 C.albicans strains with either RPMI 1640 medium or DMEM medium,at 37 ℃ for 24 h,respectively.The hyphal and yeast forms were counted separately and the ratio of hyphal form to total cells was calculated.Results The ratio of hyphal form to total cells was higher in RPMI 1640 medium than that in DMEM medium at the same incubation time for the majority of strains.The ratio was above 99% for all strains after 7-day incubation with 12 times of passages in RPMI 1640 medium at 37 ℃.Moreover the ratio of hyphal form was significantly higher for fluconazole-susceptible strains than that for fluconazole dose-dependent susceptible and resistant strains in incubation with DMEM medium at 37 ℃.Conclusion Incubation with RPMI 1640 medium at 37 ℃ for 7 days seems a favorable condition to induce hyphal form of C.albicans.
6.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
7.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
8.Research on quality parameters of scutellariae radix (formula particles) using on-line NIR in pilot with different extraction process.
Yang LI ; Zhi-Sheng WU ; Xin-Yuan SHI ; Xiao-Ning PAN ; Qiao ZHANG ; Yan-Jiang QIAO
China Journal of Chinese Materia Medica 2014;39(19):3753-3756
The on-line monitor for the changes in the content of baicalin in Scutellariae Radix formula particles during the extraction process was conducted by using near infrared spectroscopy (NIR). High performance liquid chromatography (HPLC) was used as a reference method. Kennard-Stone (KS) was used to divide sample sets, so as to compare different pretreatment methods. The synergy interval partial least squares (SiPLS) was used to screen out modeling wave band to establish partial least-squares models. The relative error method was applied to predict forecast set samples of Scutellariae Radix in three extraction phases. The results showed that the model established by Savitzky-Golay smoothing with 11 points (SG11 points) was the best, with the root mean square with cross validation (RMSECV), root mean square error of correction (RMSEC) and root mean square error of prediction (RMSEP) of baicalin of 0.092 7, 0.134 4 and 0.114 8, respectively, the determination coefficient R2 of greater than 0.99, and the relative error of baicalin content of less than 5%. This indicates that the on-line near infrared reflectance spectroscopy could be applied in on-line monitor and quality control of the extraction process of Scutellariae Radix formula particles.
Automation
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methods
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Drugs, Chinese Herbal
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chemistry
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standards
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Quality Control
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Scutellaria baicalensis
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chemistry
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Spectroscopy, Near-Infrared
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methods
9.Expression and significance of miR-30c-5p and Toll-like receptor 4 in colon cancer
Xiaofei YAN ; Guangyue ZHAO ; Yun QIAO ; Jifu ZHANG ; Gang SHI
Clinical Medicine of China 2021;37(1):57-61
Objective:To observe the expression of miR-30c-5p and Toll-like receptor 4(TLR4) in colon cancer tissues and cells, and to explore their relationship with clinicopathological features.Methods:As a prospective study, 30 cases of colon cancer surgical specimens and matched normal tissue samples were selected from the Cancer Hospital of China Medical University from May 2016 to may 2017.The expression of miR-30c-5p mRNA was detected by quantitative real-time polymerase chain reaction(qRT-PCR), and the expression of TLR4 Protein was detected by western blot (WC). The expression differences of miR-30c-5p mRNA and TLR4 protein in different TNM stages, differentiation degrees and diameters were observed.The correlation between the expression of miR-30c-5p and TLR4 Protein was analyzed by Pearson Rank method.Results:The expression of miR-30c-5p was lower in colon cancer tissues(0.311±0.147) than in adjacent normal colon tissues(0.881±0.266)( t=10.613, P<0.001). TLR4 protein was higher in colon cancer tissues(0.729±0.274) than in adjacent normal colon tissues(0.361±0.168)( t=6.310, P<0.001). Expression of miR-30c-5p was lower in colon cancer cell lines(0.394±0.045, 0.435±0.098, 0.533±0.092, 0.272±0.069) than in normal colon epithelial cell line(1.371±0.101)( t value were 6.744, 6.432, 6.865 and 6.201, respectively; P<0.001). The expression of TLR4 protein was higher in colon cancer cell lines(1.108±0.169, 1.035±0.177, 1.114±0.253, 1.116±0.157) than in normal colon epithelial tissues(0.358±0.094)( t value were 5.789, 4.799, 5.311 and 5.292, respectively; P<0.001). Pearson rank correlation showed that miR-30c-5p was negatively correlated with TLR4 protein expression( r=-0.487, 95% CI: -0.721--0.154, P<0.01). MiR-30c-5p was decreased with TNM stage increasing( F=31.406, P<0.001), pathological differentiation degree decreasing( F=9.960, P<0.001), tumor diameter increasing( F=10.267, P<0.001). TLR4 was increasing with TNM stage increasing( F=37.634, P<0.001). TLR4 increased with the decrease of tumor differentiation( F=38.027.35, P<0.001). TLR4 increased with tumor diameter ( F=20.717, P<0.001). Conclusion:The low expression of mir-30c-5p and high expression of TLR4 in colon cancer were correlated with TNM stage and tumor volume.
10.Role of connexin 43 in apoptosis of pancreatic cancer cell line BxPC3
Yan SUN ; Weiyan YAO ; Yongping ZHANG ; Minmin QIAO ; Yaozong YUAN
Chinese Journal of Pancreatology 2009;9(6):391-394
Objective To investigate the role of connexin 43(Cx43)in the apoptosis of pancreatic cancer cell line BxPC and its possible mechanism.Methods pcDNA-Cx43,pcDNA-Cx43N,pcDNA3.0,siRNA-Cx43 and siRNA-NC were transfected into BxPC3 cells via liposome method.Cx43 protein and Cytochrome C(Cyt C)concentration was determined by Western blot,and the apoptosis was analyzed by Annexin V/PI binding assay.The mitechondria apoptosis pathway involved in Cx43 associated apoptosis was examined which contains the depolarization of mitechondrial membrane potential (MMP);fluorospectrophotometer was used to measure the activities of caspase-3 and caspase-9. Gap junction intercellular communication(GJIC) was determined by dye-transfer method.Results Cx43 protein expression increased after BxPC3 transfeetion,apoptosis rate increased from(6.35±0.43)%in empty vector transfection group to(14.29±1.24)%;after H202 treatment,apoptosis rate increased from(20.34±2.47)%to(31.27±2.56)%(P<0.05).Meanwhile,mitochondrial membrane potential was decreased,Cyt C was increasingly released from mitochondria,caspases activities were increased;after siRNA43 interference,apoptosis rate decreased from(7.42±0.47)% to(5.19±1.37)%,after H_2O_2 treatment,apoptosis rate decreased from (19.43±1.71)%to(11.67±1.97)%(P<0.05).Decreased mitochondrial membrane potential and Cyt C release were observed,caspases activities were decreased.GJIC of pcDNA-Cx 43 transfection group increased from 14.52±0.57 to 23.05±3.84.and it increased from 1.70 ±0.24 to 3.84 ±0.45 in the presence of β-GA(P<0.05).But the apoptosis rate was not significantly different.Conclusions Cx43 could promote BxPC3 apoptosis via mitochondrial apoptotic signal pathway,and the possible mechanism included signal pathway other than GJIC.