1.Emphasis on the utility of anticoagulants in laboratory investigations
Chinese Journal of Laboratory Medicine 2008;31(1):18-21
The utility of anticoagulants is a significant content of total quality management(TQA)of clinical laboratory.The accurate results of laboratory investigations are closely correlated witll appropriate application of blood anticoagulants.The paper reviews the utility field and effects on investigation result of different anticoagulants,and it also raises the current problems of using anticoagulants and Dut forward corresponding solutions.
2.Advances in the pharmacological study of Morus alba L.
Shuang YANG ; Bao-Lian WANG ; Yan LI
Acta Pharmaceutica Sinica 2014;49(6):824-831
Morus alba L. (mulberry) is a well-known deciduous tree, belonging to the genus of Morus of Moraceae famlily. Its leaves, twigs, roots (bark) and fruits are widely used in the traditional Chinese medicine. The active constituents of mulberry contained flavonoids, alkaloids, steroids, coumarins, with the significant hypoglycemic, hypolipidemic, antihypertension, anti-oxidation, anti-inflammatory, anti-bacterial, anti-tumor and immunomodulatory activities. This review summarized the research progress of the major pharmacological activity, pharmacokinetics and drug-drug interaction based on CYPs and transporters of mulberry and its active constituents.
Alkaloids
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pharmacology
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Coumarins
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pharmacology
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Flavonoids
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pharmacology
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Fruit
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chemistry
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Herb-Drug Interactions
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Humans
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Medicine, Chinese Traditional
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Morus
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chemistry
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Plant Extracts
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pharmacology
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Plant Leaves
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chemistry
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Plant Roots
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chemistry
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Steroids
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pharmacology
3.Study on Mongolian Medicine Prescription Classification Method Based on Fuzzy C-means Algorithm
Chunsheng ZHANG ; Tuya BAO ; Yan LI
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(8):99-103
Objective To classify Mongolian medicine prescription by using fuzzy c-means algorithm (FCM) and hard c-means algorithm (HCM); To explore the rationality of two kinds of clustering algorithm. Methods 27 Mongolian medicine prescriptions for treating Heiyi disease from Chuan Tong Meng Yao Yu Fang Ji were set as experimental data, and the data were preprocessed first. MS Visual Studio 2010 platform was used, and C# language was used for research and development. Chinese version and Mogolian version were implemented with WindowFrom and WPF technology, respectively. The medicine prescriptions were classified into 3, 4, 5, and 6 types by using FCM and HCM. Results All categorization with zero classification showed the existence of inclusion phenomena. The medicine in the classification results obtained by the two kinds of clustering algorithm did not exist cross. FCM could produce clustering results with smaller quantity difference and the more uniform classification compared with HCM. Conclusion The two algorithms are correct and reasonable, in which FCM algorithm has better clustering effect, and can be widely used in Mongolian prescription analysis, with a purpose to provide data supports for the research and development of new medicine.
4.Expression and Significance of VEGF and Type Ⅳ Collagen in the Kidney of Diabetic Rats
Jing LI ; Yingchun YE ; Yan BAO
Journal of Chinese Physician 2001;0(09):-
Objective To investigate the relation between the expression of vascular endothelial growth factor (VEGF) and type Ⅳ collagen and the renal lesion of diabetes mellitus in diabetic rats. Methods Wistar rats were divided at random into normal control group(NC group) and diabetic model group(DM group), each group containing 20 animals. The rats models of diabetic mellitus were induced by streptozotocin(STZ). At the 8th week after induction, the expression levels of VEGF and type IV collagen in the kidney tissues in the two groups of rats were detected using immunohistochemistry. At the same time, the renal function of the rats was measured. Results At the 8th week,the expression levels of VEGF and type IV collagen of kidney tissues in DM group was much higher than those in NC group(P
5.Evaluation of Measurement Uncertainty of 2 2 Clinical Chemistry Assays
Journal of Modern Laboratory Medicine 2014;(6):156-158
Objective To calculate the measurement uncertainty of clinical chemical analytes according to the internal quality control (IQC)and external quality assessment (EQA)data in clinical laboratory.Methods Collected the IQC data from January to June 2013 and EQA data between 2012~2014 of clinical chemistry in clinical laboratory.Calculated the measure-ment uncertainty and extended uncertainty according to the Nordtest criteria.Results It was effective to evaluate the uncer-tainty using IQC and EQA data.ALP ranked the highest extended uncertainty and Na+ ranked the lowest uncertainty.The range of uncertainty varies greatly,electrolyte 4.27~18.16,enzyme 8.12~24.88,small molecular 4.88~12.44,protein and lipids 4.78~13.1.Conclusion The evaluation of clinical chemistry uncertainty by IQC and EQA data is simple and practi-cal,which is beneficial for assurancing the measurement accuracy.
6.Rehabilitation Treatment and Care of the Patients with Cor Pulmonale in Release Stage
Haizhu LI ; Wenhua BAO ; Xiaolin YAN
Chinese Journal of Rehabilitation Theory and Practice 1998;4(3):126-128
The patients with cor pulmonale in release stage have been treated and cared with many methods.The results showed that there are obvious recuperatio of respiratory symptoms and lung function and evident strength of the immune function of the body and movement of diaphragm in the patients of treatment group with cor pulmonale compared with control group.The studies suggested that the rehabilitation treatment and care plays an important role in treating patients with cor pulmonale,particularly postponing and prevention acute attack.
7.Study on the characterization and isolation of collagen from different shark skins
Wenhui WU ; Yan ZHANG ; Bin BAO ; Yan LI
Chinese Journal of Marine Drugs 1994;0(02):-
Objective To investigate the methods of isolating collagen from different shark skins and to study its biochemical properties.Methods The collagen from the Blue shark scalp was extracted and purified by enzymolysis after treatment with diluted caustic alkali,and the collagen from the Spanish mackerel skins was extracted and purified by phosphate buffer method,respectively.Subsequently,the relative molecular mass,thermal denatured temperature and secondary structure of extracted collagen were determined.Results The extracted collagen with a yield of 2.9%~4.1% showed three clear bands by SDS-PAGE,and the relative molecular mass were 205,134 and 118KDa.The collagen from Blue shark and Spanish mackerel skins maximal thermal denatured temperature was 69,47℃,respectively.The secondary structures of their collagen were primary with ?-sheet and the random structure,without ?-alix.Conclusion The purified collagen was also extracted by the method of enzymolysis after treatment with diluted caustic alkali and the method of phosphate buffer.The relative molecular mass and the composition of Blue shark collagen and Spanish mackerel collagen were limited.However,the different extracted conditions could affect the specifically biochemical properties of thermal denatured temperature and secondary structure of collagen.
10.Post-marketing reevaluation for potential quality risk and quality control in clinical application of traditional Chinese medicines.
Hong-jiao LI ; Li-yun HE ; Bao-yan LIU
China Journal of Chinese Materia Medica 2015;40(12):2461-2463
The effective quality control in clinical practices is an effective guarantee for the authenticity and scientificity of the findings. The post-marketing reevaluation for traditional Chinese medicines (TCM) focuses on the efficacy, adverse reaction, combined medication and effective dose of drugs in the market by expanded clinical trials, and requires a larger sample size and a wider range of patients. Therefore, this increases the difficulty of quality control in clinical practices. With the experience in quality control in clinical practices for the post-marketing reevaluation for Kangbingdu oral for cold, researchers in this study reviewed the study purpose, project, scheme design and clinical practice process from an overall point of view, analyzed the study characteristics of the post-marketing reevaluation for TCMs and the quality control risks, designed the quality control contents with quality impacting factors, defined key review contents and summarized the precautions in clinical practices, with the aim to improve the efficiency of quality control of clinical practices. This study can provide reference to clinical units and quality control-related personnel in the post-marketing reevaluation for TCMs.
Drugs, Chinese Herbal
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adverse effects
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economics
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therapeutic use
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Humans
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Medicine, Chinese Traditional
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Product Surveillance, Postmarketing
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methods
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Quality Control
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Randomized Controlled Trials as Topic
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Respiratory Tract Infections
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drug therapy