1.Research status of dual-specificity phosphatase family and embryonic development
Ran ZHANG ; Jing-Suo WANG ; Ya-Fen CHEN ; Shen-Wei LI ; Huai-Can ZHANG ; Wei JI ; Hai-Ying WANG
The Chinese Journal of Clinical Pharmacology 2023;39(24):3664-3668
Embryo development is the main stage of the formation of various tissues,organs and systems.Abnormal embryo development can lead to embryo deformity and even death.Many factors are involved in this process.It was found that dual-specificity phosphatase(DUSP)could regulate the growth and development of different cells through a variety of signaling pathways,and it has been confirmed that the DUSPs family has an important association with embryonic development.A large amount of evidences showed that DUSPs and its downstream mitogen-activated protein kinase(MAPK)pathway played a key role in the regulation of gametogenesis,digestive system development and embryonic ear development.dusp27 is another extremely important gene whose role in early embryonic development remains to be studied,but it plays an important role in the development of embryonic muscle tissue.In this paper,the development of the above systems in DUSPs family was briefly reviewed in order to provide theoretical basis for the treatment of embryonic developmental diseases.
3.Screening and phylogenetic analysis of symbiotic and epiphyte microorganisms with Cetorhinus maximus
Can WANG ; Zhang-jun CAO ; Zhi-yu SHAO ; Bei HUANG ; Huai MIN ; Hao-yan HU ; Bing-hua JIAO ; Xing-qun ZHANG
Chinese journal of nautical medicine and hyperbaric medicine 2009;16(5):265-268
Objective To investigate, purify, screen and identify antimicrobial activities of the strains of cuhurable microorganisms from gills, stomachs or intestines. Methods A total of 452 cuhurable microorganisms and 36 strains were isolated from gills, stomachs or intestines of Cetorhinus maximus (Basking shark), of which 5 strains were from gills and 31 strains were from stomachs or intestines. In all, there were 7 strains of fungi (19%), 1 strain of actinomycetes (3%) and 28 strains of bacteria (78%). Molecular identification and classification of 15 isolates based on 16S rRNA sequences indicated that they belonged to the Bacillus, Brevundimonas, Staphylococcus, Staphylococcus xylosus, Bacillus pumilus. Antibacterial activity was screened for the cuhurable bacteria. Results Laboratory experiments revealed that in total 23 strains were isolated from gills, stomachs or intestines, and 15 strains showed antimicrobial activities against Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginose, Enterobacter aerogenes, Candida albicaus (with the method of agar piece and disk paper tests), accounting for 65% of the isolated strains. They belonged to Bacillus (5 strains), Staphylococcus (6 strains), Brevundimonas (2 strains), and Psychrobacter (2 strains) respectively. Conclusions The isolation and purification of symbiotic microorganisms from gills, stomachs or intestines of Cetorhinus maximus could be realized via routine microbiology. Results indicated that 50% of the isolated strains showed bacteriostatic effects to various degrees. There is great probability that active antimicrobial substances from these strains might be found through further research.
4.Screening and phylogenetic analysis of symbiotic and epiphyte microorganisms with Cetorhinus maximus
Can WANG ; Zhang-jun CAO ; Zhi-yu SHAO ; Bei HUANG ; Huai MIN ; Hao-yan HU ; Bing-hua JIAO ; Xing-qun ZHANG
Chinese journal of nautical medicine and hyperbaric medicine 2009;16(5):265-268
Objective To investigate, purify, screen and identify antimicrobial activities of the strains of cuhurable microorganisms from gills, stomachs or intestines. Methods A total of 452 cuhurable microorganisms and 36 strains were isolated from gills, stomachs or intestines of Cetorhinus maximus (Basking shark), of which 5 strains were from gills and 31 strains were from stomachs or intestines. In all, there were 7 strains of fungi (19%), 1 strain of actinomycetes (3%) and 28 strains of bacteria (78%). Molecular identification and classification of 15 isolates based on 16S rRNA sequences indicated that they belonged to the Bacillus, Brevundimonas, Staphylococcus, Staphylococcus xylosus, Bacillus pumilus. Antibacterial activity was screened for the cuhurable bacteria. Results Laboratory experiments revealed that in total 23 strains were isolated from gills, stomachs or intestines, and 15 strains showed antimicrobial activities against Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginose, Enterobacter aerogenes, Candida albicaus (with the method of agar piece and disk paper tests), accounting for 65% of the isolated strains. They belonged to Bacillus (5 strains), Staphylococcus (6 strains), Brevundimonas (2 strains), and Psychrobacter (2 strains) respectively. Conclusions The isolation and purification of symbiotic microorganisms from gills, stomachs or intestines of Cetorhinus maximus could be realized via routine microbiology. Results indicated that 50% of the isolated strains showed bacteriostatic effects to various degrees. There is great probability that active antimicrobial substances from these strains might be found through further research.

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