4 results on '"Seunghoe Kim"'
Search Results
2. Anti-quorum sensing and anti-biofilm formation activities of plant extracts from South Korea
- Author
-
Okhee Choi, Dong-Wan Kang, Su Kyung Cho, Yeyeong Lee, Byeongsam Kang, Juyoung Bae, Seunghoe Kim, Jeong Hoon Lee, Seung Eun Lee, and Jinwoo Kim
- Subjects
plant extracts ,quorum sensing ,biofilm formation ,cornus controversa ,Arctic medicine. Tropical medicine ,RC955-962 ,Biology (General) ,QH301-705.5 - Abstract
Objective: To investigate anti-quorum sensing (anti-QS) and anti-biofilm formation (anti- BF) activities of the ethanol extracts of 388 plants. Methods: The anti-QS activity of the plant extracts was evaluated by disc-diffusion assays using the bio-reporter strain, Chromobacterium violaceum CV017. Pseudomonas aeruginosa PAO1, Yersinia enterocolitica ATCC 9610, and Agrobacterium tumefaciens C58, which possess QS systems, were used to evaluate the anti- BF activity of the plant extracts. Results: Among 388 plant extracts, the Cornus controversa (C. controversa) and Cynanchum wilfordii extracts exhibited the strongest anti-QS activity. The C. controversa extract exhibited anti-BF activity against Pseudomonas aeruginosa, Yersinia enterocolitica and Agrobacterium tumefaciens, whereas the Cynanchum wilfordii extract exhibited no anti-BF activity against Pseudomonas aeruginosa. In addition, the C. controversa extract suppressed soft rot of cabbage. Conclusions: The C. controversa extract inhibits bacterial QS and BF, and is capable of controlling soft rot. Therefore, this extract has potential for the prevention and treatment of bacterial infections and for the development of alternatives to antibiotics.
- Published
- 2018
- Full Text
- View/download PDF
3. Prevalence and molecular characteristics of carbapenem-resistant Escherichia coli isolated from dogs in South Korea.
- Author
-
Bo-Youn Moon, Ali, Md. Sekendar, Seunghoe Kim, Hee-Seung Kang, Ye-Ji Kang, Jae-Myung Kim, Dong-Chan Moon, and Suk-Kyung Lim
- Subjects
CARBAPENEM-resistant bacteria ,ESCHERICHIA coli ,PULSED-field gel electrophoresis ,PETS ,POLYMERASE chain reaction - Abstract
Importance: Carbapenem-resistant Enterobacteriaceae are emerging as a global public health risk. Therefore, assessing the prevalence of carbapenem-resistant Escherichia coli (CRE) in both humans and animals is important. Objective: We aimed to ascertain the occurrence and characteristics of CRE isolated from companion animals, dogs and cats. Methods: E. coli strains were tested for antimicrobial susceptibility using the broth microdilution technique. Antimicrobial resistance genes were detected by polymerase chain reaction and sequencing analysis. The molecular characteristics of CRE were determined using multi-locus sequence typing, replicon typing, and pulsed-field gel electrophoresis (PFGE). Results: In total, 13 CRE isolates (0.13%) were identified from dogs possessing blaNDM-5 along with ß-lactamase genes, mostly blaCMY-2 (92.2%) and blaTEM-1 (53.8%). The commonly observed mutations were S83L and D87N in gyrA, S80I in parC, and S458A in parE. CRE carried nonbeta-lactam resistance genes, with the majority being tet(B) (100%), sul (84.6%), and aac(3)-II (53.8%). Nine different PFGE patterns (P1-P9), IncX3-type plasmids (69.2%), and ST410 (84.6%) were predominantly detected. Conclusions and Relevance: This investigation provides significant insight into the prevalence and molecular characteristics of blaNDM-5-carrying E. coli in dogs. The co-existence of blaNDM-5 and other antimicrobial resistance genes in E. coli potentially poses severe health hazards to humans. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
4. Adaptive self-healing electronic epineurium for chronic bidirectional neural interfaces
- Author
-
Jinseok Kim, Ki Jun Yu, Duhwan Seong, Yu Chan Kim, Seunghoe Kim, Inchan Youn, Hyung-Seop Han, Hyojin Lee, Kang Il Song, Hyunseon Seo, Dong Hee Son, and Seok Joon Kwon
- Subjects
0301 basic medicine ,Nervous system ,Central Nervous System ,Male ,Computer science ,Polymers ,Science ,Biomedical Engineering ,Neurosurgery ,General Physics and Astronomy ,02 engineering and technology ,Signal ,General Biochemistry, Genetics and Molecular Biology ,Article ,03 medical and health sciences ,Wearable Electronic Devices ,Epineurium ,Materials Testing ,medicine ,Electronic devices ,Animals ,Humans ,Peripheral Nerves ,Nerve Tissue ,lcsh:Science ,Device failure ,Brain–computer interface ,Dynamic stress ,Multidisciplinary ,Soft materials ,fungi ,food and beverages ,General Chemistry ,Prostheses and Implants ,021001 nanoscience & nanotechnology ,Sciatic Nerve ,Electronics, Medical ,Rats ,030104 developmental biology ,medicine.anatomical_structure ,Self-healing ,Models, Animal ,lcsh:Q ,Gold ,0210 nano-technology ,Biomedical engineering - Abstract
Realizing a clinical-grade electronic medicine for peripheral nerve disorders is challenging owing to the lack of rational material design that mimics the dynamic mechanical nature of peripheral nerves. Electronic medicine should be soft and stretchable, to feasibly allow autonomous mechanical nerve adaptation. Herein, we report a new type of neural interface platform, an adaptive self-healing electronic epineurium (A-SEE), which can form compressive stress-free and strain-insensitive electronics-nerve interfaces and enable facile biofluid-resistant self-locking owing to dynamic stress relaxation and water-proof self-bonding properties of intrinsically stretchable and self-healable insulating/conducting materials, respectively. Specifically, the A-SEE does not need to be sutured or glued when implanted, thereby significantly reducing complexity and the operation time of microneurosurgery. In addition, the autonomous mechanical adaptability of the A-SEE to peripheral nerves can significantly reduce the mechanical mismatch at electronics-nerve interfaces, which minimizes nerve compression-induced immune responses and device failure. Though a small amount of Ag leaked from the A-SEE is observed in vivo (17.03 ppm after 32 weeks of implantation), we successfully achieved a bidirectional neural signal recording and stimulation in a rat sciatic nerve model for 14 weeks. In view of our materials strategy and in vivo feasibility, the mechanically adaptive self-healing neural interface would be considered a new implantable platform for a wide range application of electronic medicine for neurological disorders in the human nervous system., Electronic implantable devices should be soft and stretchable, such that nerves can adapt mechanically and autonomously. Here, the authors present an adaptive self-healing electronic epineurium which can form compressive stress-free and strain-insensitive electronics-nerve interfaces.
- Published
- 2020
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.