ABSTRACT
@#AIM: To analyze the funding status of cataract research funded by National Natural Science Foundation of China from 2010 to 2019, and discuss the development focus on basic cataract research in the near future, so as to provide reference information for researchers in the field of cataract to understand the progress of basic research and apply for funding.<p>METHODS: The cataract research projects funded by the National Natural Science Foundation of China from 2010 to 2019 were counted. The categories of funded projects, project title, fund amount, applicant unit and region, approved year and key words were statistically analyzed. <p>RESULTS: In the past ten years, the number of cataract research projects and the amount of funding accounted for 9.35% and 9.72% of the total amount of the whole ophthalmology area respectively. The number of projects in ophthalmology and cataract research and the amount of aid received generally showed a wavy upward trend. The key words in the project setup are gradually increasing, and more and more inclined to mechanism research. With the development of computer aided technology, TALEN technology and total exon sequencing technology, cataract research presents a trend of integration of medicine and other disciplines. East China, especially Shanghai, ranks first in terms of the number of projects and funds received. Among the categories of projects, the number and funding are the largest among the general projects. In recent years, the number of the Youth Science Foundation projects has risen strongly, and even exceeds the general projects in some areas. <p>CONCLUSION: The focus of cataract research from 2010 to 2019 tends to be diversified. The integration of multi-disciplines and the application of new techniques and methods are prominent features. The fund amount and the level of research are unbalanced in regional development.
ABSTRACT
In the present study, four new sesquiterpenoids, chimonols A-D (compounds 1-4), together with four known compounds (5-8) were isolated from the EtOAc extract of Chimonanthus praecox Link. The structures of these new compounds were elucidated on the basis of spectroscopic techniques (UV, IR, MS, and 1D and 2D NMR), and their absolute configurations were established by comparing experimental and calculated electronic circular dichroism (ECD) spectra. Compounds 1-8 were evaluated for antimicrobial activities and the minimum inhibitory concentrations (MICs) were determined by the broth microdilution method in 96-well culture plates. Compounds 1, 2, and 7 exhibited weak antibacterial effects for S. aureus (ATCC 6538), E. coli (ATCC 11775), and P. aeruginosa (ATCC 10145) with MIC values being 158-249 µg·mL. Compounds 3-7 showed activities against C. glabrata (ATCC 2001) and S. aureus (ATCC 43300) with MIC values being 128-197 µg·mL. Compounds 1-4 showed activity against S. aureus (ATCC 25923) with MIC values being 162-254 µg·mL. The present study provided a basis for future evaluation of these compounds as antibacterial agents.
Subject(s)
Anti-Bacterial Agents , Chemistry , Pharmacology , Calycanthaceae , Chemistry , Escherichia coli , Microbial Sensitivity Tests , Molecular Structure , Plant Extracts , Chemistry , Pharmacology , Sesquiterpenes , Chemistry , Pharmacology , Staphylococcus aureusABSTRACT
In the present study, four new sesquiterpenoids, chimonols A-D (compounds 1-4), together with four known compounds (5-8) were isolated from the EtOAc extract of Chimonanthus praecox Link. The structures of these new compounds were elucidated on the basis of spectroscopic techniques (UV, IR, MS, and 1D and 2D NMR), and their absolute configurations were established by comparing experimental and calculated electronic circular dichroism (ECD) spectra. Compounds 1-8 were evaluated for antimicrobial activities and the minimum inhibitory concentrations (MICs) were determined by the broth microdilution method in 96-well culture plates. Compounds 1, 2, and 7 exhibited weak antibacterial effects for S. aureus (ATCC 6538), E. coli (ATCC 11775), and P. aeruginosa (ATCC 10145) with MIC values being 158-249 µg·mL. Compounds 3-7 showed activities against C. glabrata (ATCC 2001) and S. aureus (ATCC 43300) with MIC values being 128-197 µg·mL. Compounds 1-4 showed activity against S. aureus (ATCC 25923) with MIC values being 162-254 µg·mL. The present study provided a basis for future evaluation of these compounds as antibacterial agents.