1.Advances in studies on chemical constituents and bioactivities of plants from flacourtiaceae.
Xing-Yun CHAI ; Ya-Nan LU ; Hong-Yan REN ; Peng-Fei TU
China Journal of Chinese Materia Medica 2006;31(4):269-279
In this article, the research of chemical constituents and bioactivities in recent ten years has been reviewed of plants from the 12 genera in Flacourtiaceae related to the medicinal resources in China. The research in China about the plants from Flacourtiaceae was done very little, but many literatures have been reported abroad. The plants from Flacourtiaceae mostly contain the constituents such as aromatic glucosides, lignanoid glucosides, diterpenoids and cyclopentenoid cyanohydrin glucosides et al. These compounds or plant extracts mainly show antibacterial, antiviral, antitumor, hypolipidemic and hypoglycemic activities. The research of plants from Carrierea, Itoa and Bennettiodendron of Flacourtiaceae in China is still blank. The systemic research about chemical constituents and bioactivities of plants from these genera will play important roles in the discovery of novel natural products and active constituents, and provide valuable reference for the classifying of plants from these genera.
Animals
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Anti-Bacterial Agents
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isolation & purification
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pharmacology
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Antineoplastic Agents, Phytogenic
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Diterpenes
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chemistry
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isolation & purification
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pharmacology
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Flacourtiaceae
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chemistry
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classification
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Flavonolignans
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chemistry
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isolation & purification
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pharmacology
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Glucosides
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chemistry
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isolation & purification
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pharmacology
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Humans
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Hypolipidemic Agents
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isolation & purification
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pharmacology
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Molecular Structure
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Plant Extracts
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isolation & purification
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pharmacology
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Plants, Medicinal
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chemistry
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classification
2.Investigation epidemiology and sub-clinical infection of hepatitis E in voluntary blood donors in south Zhejiang.
Guo-Yong HUANG ; Hai-Hong WANG ; Xiao-Hua CHEN ; Xiao-Mei ZHANG ; Yan-Chai TU ; Jian-Dao LI ; Qiong ZHANG ; Tong CHEN ; Sheng-Xiang GE
Chinese Journal of Experimental and Clinical Virology 2009;23(3):185-187
OBJECTIVETo investigate the southern region of Zhejiang hepatitis E virus (HEV) infection.
METHODSA cluster sampling strategy was used to sample all blood donors from February to October in 2008 in Wenzhou blood center. Their blood was tested for IgG and IgM antibody against HEV. Reverse transcriptase-polymerase chain reaction(RT-PCR) and sequencing were applied to detect its genotype and sequence homology in HEV IgM-positive specimen.
RESULTSThe prevalence of anti-HEV IgG in 3044 cases of blood donors was 33.28%. IgG increased with age. There are certain increase in positive rates between the 20-year-old group and over 40 years of age group from 21.16% to 50.36%. The positive rate of IgM was 0.92%. The ratio of infection among different age group was the highest in the age range from 31 to 40 years and up to 1.90%. IgG and IgM through their negative and positive analysis of samples found in their group with donors age, sex and blood type does not significantly related to each other. Nucleic acids were found in three cases through PCR amplification in all 28 cases of HEV IgM positive samples. The total positive rate was one-thousandth, of which two cases for gene 4, 1 cases of infection for gene 1.
CONCLUSIONThe results indicate that there was a certain percentage of HEV virus in voluntary blood donors in south Zhejiang.
Adolescent ; Adult ; Blood Donors ; China ; epidemiology ; Female ; Genotype ; Hepatitis Antibodies ; blood ; Hepatitis E ; blood ; epidemiology ; virology ; Hepatitis E virus ; classification ; genetics ; immunology ; isolation & purification ; Humans ; Immunoglobulin G ; blood ; Immunoglobulin M ; blood ; Male ; Middle Aged ; Phylogeny ; Young Adult
3.Research progress on in vitro models of cardiomyocyte injury.
Yan-Yi LI ; Jun-Jun LI ; Fu-Xing GE ; Xiao-Jing MA ; Chun LI ; Xiao-Ni AI ; Xiao-Li GAO ; Peng-Fei TU ; Xing-Yun CHAI
China Journal of Chinese Materia Medica 2021;46(13):3257-3269
Cardiovascular diseases seriously endanger human health and life. The accompanying myocardial injury has been a focus of attention in society. Chinese medicine,serving as a natural and precious reservoir for the research and development of new drugs,is advantageous in resisting myocardial injury due to its multi-component,multi-pathway,and multi-target characteristics. In recent years,with the extensive application of culture method for isolated cardiomyocytes,a cost-effective,controllable in vitro model of cardiomyocyte injury with uniform samples is becoming a key tool for mechanism research on cardiomyocyte injury and drug development.A good in vitro model can reduce experimental and manpower cost,and also accurately stimulate clinical changes to reveal the mechanism. Therefore,the selection and establishment of in vitro model are crucial for the in-depth research. This study summarized the modeling principles,evaluation indicators,and application of more than ten models reflecting different clinical conditions,such as injuries induced by hypoxia-reoxygenation,hypertrophy,oxidative stress,inflammation,internal environmental disturbance,and toxicity. Furthermore,we analyzed advantages and technical difficulties,aiming to provide a reference for in-depth research on myocardial injury mechanism and drug development.
Apoptosis
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Cell Hypoxia
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Humans
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Myocardium
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Myocytes, Cardiac
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Oxidative Stress