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.CT and MRI Diagnosis of Rare Cystic Disease of the Pancreas
Huimao ZHANG ; Fengli QIAO ; Xiaobin WANG ; Yan Lü
Journal of Practical Radiology 2010;26(1):40-42
Objective To investigate CT and MRI findings of rare cystic disease of the pancreas.Methods Elven cases with rare cystic disease of the pancreas underwent plain and contrast-enhanced CT and MR imaging before operation were reviewed.The clinical presentations and imaging findings were analysed.Among eleven cases,four were epidermoid,four were lymphepithelial cyst and three were lymphangioma.Results (1) Epidermoids located in the tail of the pancreas with smooth wall,the density of parenchyma of the lesons was the same as spleen at CT plain scan.On contrast-enhanced CT and MRI,the parenchyma of the lesions showed the same enhanced pattern with spleen.(2)Lymphepithelial cysts often occurred in olderly men.The lesions appeared as multilocular masses with definite border,isodensity at CT plain scan,and mixed iso-hyperintensity on both T_1WI and T_2WI images.After injection of contrast medium,the wall and septum of the lesions were enhanced.(3)Lymphangiomas were multilocular cystic lesion in the body-tail of the pancreas,hypodense at CT plain scan,and long T_1 and T_2 signal intensity at MRI plain scan.The septum and wall of the lesions were slightly enhanced on contrast-enhanced images.The lesions were not communicated with the pancreatic duct but pancreatic ducts were compressed and slightly shifted.Conclusion CT and MRI findings of rare neoplastic cystic disease of the pancreas are of certain characteristics.
10.Study on structure-activity relationship of flavonoids' multidrug resistance-associated protein inhibitory activity.
Lian-Sheng QIAO ; Yu-Su HE ; Yan-Ling ZHANG
China Journal of Chinese Materia Medica 2014;39(5):885-890
To study the quantitative structure-activity relationship (QSAR) between the stuctures of 29 flavonoids and the inhibitory activity of their multidrug resistance-associated protein (MRP) 1 and 2 by using the comparative molecular similarity index analysis (CoMSIA). By studying the impact of the combination of different molecular force fields, researchers obtained the molecular force fields that played an important role in inhibiting the activity of MRP1 and MRP2, built the optimized QSAR model, and discussed the structural modification method for flavonoids' multidrug resistance-associated protein inhibitor. The results of the study could not only provide the guidance for new drug R&D, but also help partially discuss the synergy mechanism between MRP1 and MRP2 receptors and traditional Chinese medicines containing flavonoids.
Drugs, Chinese Herbal
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chemistry
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pharmacology
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Flavonoids
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chemistry
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pharmacology
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Humans
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Models, Molecular
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Multidrug Resistance-Associated Proteins
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antagonists & inhibitors
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chemistry
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Quantitative Structure-Activity Relationship