• Title/Summary/Keyword: K-ABC

Search Result 444, Processing Time 0.024 seconds

Distribution of Multidrug Efflux Pump Genes in Enterococci spp. Isolated from Bovine Milk Samples and Their Antibiotic Resistance Patterns (원유 시료에서 분리한 장알균속 세균의 다중약물 유출 펌프(Multidrug Efflux Pump) 유전자의 분포도와 항생제 내성 패턴)

  • Kang, SoWon;Lee, SangJin;Choi, SungSook
    • Korean Journal of Microbiology
    • /
    • v.49 no.2
    • /
    • pp.126-130
    • /
    • 2013
  • The major aim of this study was to investigate the distribution of genes that encode multidrug efflux pumps in Enterococci spp. isolates from bovine milk samples and antibiotic resistance patterns of these strains. Of the 245 isolates, 44.1% showed ampicillin resistance, 79.2% showed erythromycin resistance, 76.3% showed tetracycline resistance and 36.3% showed chloramphenicol resistance. In case of vancomycin and ciprofloxacin, all of the isolates were susceptible to these antibiotics. Of the 245 enterococcal isolates, 82.1% have MFS type eme(A) gene, 72.7% have ABC type efr(A) gene, 77.1% have ABC type efr(B) gene, and 71.8% have ABC type lsa gene. In case of Enterococcus faecalis, the original strain for these genes, 92.5% have eme(A), 87.4% have efr(A), 88.4% have efr(B), and 88.4% have lsa. Interestingly, in case of different species of Enterococci, eme(A) was also detected in four strains of E. faecium, seven strains of E. avium, four strains of E. durans and two strains of E. raffinosus. efr(A) was also detected in two strains of E. faecium and two strains of E. durans and efr(B) was also detected in four strains of E. faecium, five strains of E. avium and four strains of E. durans. This means the possibility of co-transfer of resistance genes between Enterococci species in natural environment. These results are the first report describing the presence of same multidrug efflux pumps in different species of Enterococci in Korea.

Swarm-based hybridizations of neural network for predicting the concrete strength

  • Ma, Xinyan;Foong, Loke Kok;Morasaei, Armin;Ghabussi, Aria;Lyu, Zongjie
    • Smart Structures and Systems
    • /
    • v.26 no.2
    • /
    • pp.241-251
    • /
    • 2020
  • Due to the undeniable importance of approximating the concrete compressive strength (CSC) in civil engineering, this paper focuses on presenting four novel optimizations of multi-layer perceptron (MLP) neural network, namely artificial bee colony (ABC-MLP), grasshopper optimization algorithm (GOA-MLP), shuffled frog leaping algorithm (SFLA-MLP), and salp swarm algorithm (SSA-MLP) for predicting this crucial parameter. The used dataset consists of 103 rows of information concerning seven influential parameters (cement, slag, water, fly ash, superplasticizer, fine aggregate, and coarse aggregate). In this work, the best-fitted complexity of each ensemble is determined by a population-based sensitivity analysis. The GOA distinguished its self by the least complexity (population size = 50) and emerged as the second time-effective optimizer. Referring to the prediction results, all tested algorithms are able to construct reliable networks. However, the SSA (Correlation = 0.9652 and Error = 1.3939) and GOA (Correlation = 0.9629 and Error = 1.3922) performed more accurately than ABC (Correlation = 0.7060 and Error = 4.0161) and SFLA (Correlation = 0.8890 and Error = 2.5480). Therefore, the SSA-MLP and GOA-MLP can be promising alternatives to laboratorial and traditional CSC evaluative methods.

Aneurysmal bone cyst of the mandibular condyle with condylar neck fracture (하악과두골절을 동반한 하악과두의 동맥류성골당)

  • Yu, Jae-Jung;Park, Jeong-Hoon;Kang, Ju-Han;Kim, Gyu-Tae;Choi, Yong-Suk;Hwang, Eui-Hwan
    • Imaging Science in Dentistry
    • /
    • v.39 no.4
    • /
    • pp.205-208
    • /
    • 2009
  • Aneurysmal bone cyst (ABC) is relatively rare, non-neoplastic expansile lesion of bone. The case of a IS-year-old male with a ABC of the left mandibular condyle is presented. Panoramic radiograph showed a unilocular radiolucency with thinned coritces and a subcondylar fracuture which was due to the trauma. Computed tomography (CT) revealed expansile lesion which had similar attenuation soft tissue. The patient was treated surgically including iliac crestal bone graft.

  • PDF

Analysis of Antimicrobial Resistance Pattern and Distribution of Multi-drug Efflux Pump Genes and Virulence Genes in Enterococcus faecalis Isolated from Retail Meat in Seoul (서울시내 시판 식육에서 분리한 Enterococcus faecalis의 항생제 내성 유형, 다중약물 유출 펌프 유전자 및 병독성 유전자의 분포도 분석)

  • Choi, MinKyung;Choi, SungSook
    • Journal of Food Hygiene and Safety
    • /
    • v.32 no.2
    • /
    • pp.135-140
    • /
    • 2017
  • The aim of this study was to investigate the distribution of genes that encode multi-drug efflux pumps and virulence factors in Enterococcus faecalis isolated from retail meat and antibiotic resistance patterns of these strains. Of the 277 retail meat samples, 93 Enterococcus faecalis were isolated. The strains exhibited resistance to ampicillin (35.5%), chloramphenicol (6.4%), ciprofloxacin (4.3%), erythromycin (18.3%), levofloxacin (0%), quinupristin-dalfopristin (76.3%), tetracycline (45.2%), teicoplanin (0%) and vancomycin (0%). The strains were positive for MFS type eme(A) (100%), ABC type efr(A) (100%), ABC type efr(B) (98.9%) and ABC type lsa (91.4%) efflux pump gene. The strains were positive for gelE (68.8%), ace (90.3%), asa1 (47.3%), efaA (91.4%) and esp (12.9%) virulence gene. This research will help to assess the hazards associated with the occurrence of drug resistance among enterococci from retail meat. Therefore, it is necessary to monitor enterococcus spp. isolated from retail meat continuously.

A Case Report of Problem Behavior in Adult with Severe Intellectual Disability Treated with the Korean Herbal Medicine Yokukan-san-gami (Yigan-san-jiawei) (성인 중증 지적장애에서의 문제행동에 대한 억간산가미(抑肝散加味) 치험 1례 보고)

  • Choi, Eun-ji;Suh, Hyo-weon;Chung, Sun Yong;Kim, Jong Woo
    • Journal of Oriental Neuropsychiatry
    • /
    • v.28 no.4
    • /
    • pp.341-347
    • /
    • 2017
  • This case report presents a 31-year-old male intellectual disability patient with problem behavior such as food refusal and temper tantrums. He was treated with the Korean traditional herbal medicine (Yokukan-san-gami) continuously for 56 days. The effects of the treatment were measured by the frequency of his problem behavior and the score of the Korean version of Aberrant Behavior Checklist (ABC). After treatment, his challenging behavior became reduced, and his ABC score had been decreased by 24.6%. The findings from this case suggest that the Korean traditional herbal medicine (Yokukan-san) could be effective for challenging behavior in patients with intellectual disabilities.

Effect of a Multi-Sensory Play Therapy Program on the Attention and Learning of Children with ADHD (다감각놀이치료 프로그램이 ADHD 아동의 주의집중력과 학습에 미치는 영향)

  • Oh, Hyewon;Kim, Koun
    • Journal of The Korean Society of Integrative Medicine
    • /
    • v.7 no.4
    • /
    • pp.23-32
    • /
    • 2019
  • Purpose : The purpose of this study was to evaluate the effects of multi-sensory treatment programs on attention and learning in ADHD children. Methods : The program was provided for 50 minutes twice a week for a total of 12 times over 6 weeks. The FAIR concentration test was used to identify the children's concentration of attention before and after the intervention. The children's learning ability was evaluated using K-ABC. Results : When attention was evaluated using FAIR, there was a significant increase in all dependencies of performance value (P), quality value (Q), and continuity value (C) (p>.05). In addition, when learning ability was evaluated using K-ABC, learning ability in general increased significantly (p>.05). The multi-sensory play therapy program had a positive effect on the children's attention and learning ability and thus it is a positive intervention method for children with ADHD. Conclusion : In addition to providing challenging activities, the program showed that it was possible to elicit the children's interest by engaging a variety of senses at the same time. This is believed to have motivated them internally to engage actively in the program.