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Yoon Y, Aziz AA, Chang IS, Kim B. Prevalence of Escherichia coli in electrogenic biofilm on activated carbon in microbial fuel cell. Appl Microbiol Biotechnol 2024; 108:52. [PMID: 38183478 DOI: 10.1007/s00253-023-12829-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 10/11/2023] [Accepted: 11/04/2023] [Indexed: 01/08/2024]
Abstract
For a better understanding of the distribution of depth-dependent electrochemically active bacteria at in the anode zone, a customized system in a microbial fuel cell (MFC) packed with granular activated carbon (GAC) was developed and subsequently optimized via electrochemical tests. The constructed MFC system was sequentially operated using two types of matrice solutions: artificially controlled compositions (i.e., artificial wastewater, AW) and solutions obtained directly from actual sewage-treating municipal plants (i.e., municipal wastewater, MW). Notably, significant difference(s) of system efficiencies between AW or MW matrices were observed via performance tests, in that the electricity production capacity under MW matrices is < 25% that of the AW matrices. Interestingly, species of Escherichia coli (E. coli) sampled from the GAC bed (P1: deeper region in GAC bed, P2: shallow region of GAC near electrolytes) exhibited an average relative abundance of 75 to 90% in AW and a relative abundance of approximately 10% in MW, while a lower relative abundance of E. coli was found in both the AW and MW anolyte samples (L). Moreover, similar bacterial communities were identified in samples P1 and P2 for both the AW and MW solutions, indicating a comparable distribution of bacterial communities over the anode area. These results provide new insights into E. coli contribution in power production for the GAC-packed MFC systems (i.e., despite the low contents of Geobacter (> 8%) and Shewanella (> 1%)) for future applications in sustainable energy research. KEY POINTS: • A microbial community analysis for depth-dependence in biofilm was developed. • The system was operated with two matrices; electrochemical performance was assessed. • E. coli spp. was distinctly found in anode zone layers composed of activated carbon.
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Affiliation(s)
- Younggun Yoon
- SELS Center, Division of Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
| | - Azilah Abd Aziz
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-Ro, Buk-Gu, Gwangju, 61005, South Korea
| | - In Seop Chang
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-Ro, Buk-Gu, Gwangju, 61005, South Korea.
| | - Bongkyu Kim
- SELS Center, Division of Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea.
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Yoon Y, Cho M. Detrimental impacts and QSAR baseline toxicity assessment of Japanese medaka embryos exposed to methylparaben and its halogenated byproducts. Sci Total Environ 2024; 927:171448. [PMID: 38453088 DOI: 10.1016/j.scitotenv.2024.171448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/09/2024]
Abstract
Despite the theoretical risk of forming halogenated methylparabens (halo-MePs) during water chlorination in the absence or presence of bromide ions, there remains a lack of in vivo toxicological assessments on vertebrate organisms for halo-MePs. This research addresses these gaps by investigating the lethal (assessed by embryo coagulation) or sub-lethal (assessed by hatching success/heartbeat rate) toxicity and teratogenicity (assessed by deformity rate) of MeP and its mono- and di-halogen derivatives (Cl- or Br-) using Japanese medaka embryos. In assessing selected apical endpoints to discern patterns in physiological or biochemical alterations, heightened toxic impacts were observed for halo-MePs compared to MeP. These include a higher incidence of embryo coagulation (4-36 fold), heartbeat rate decrement (11-36 fold), deformity rate increment (32-223 fold), hatching success decrement (11-59 fold), and an increase in Reactive Oxygen Species (ROS) level (1.2-7.4 fold)/Catalase (CAT) activity (1.7-2.8 fold). Experimentally determined LC50 values are correlated and predicted using a Quantitative Structure Activity Relationship (QSAR) based on the speciation-corrected liposome-water distribution ratio (Dlipw, pH 7.5). The QSAR baseline toxicity aligns well with (sub)lethal toxicity and teratogenicity, as evidenced by toxic ratio (TR) analysis showing TR < 10 for MeP exposure in all cases, while significant specific or reactive toxicity was found for halo-MeP exposure, with TR > 10 observed (excepting three values). Our extensive findings contribute novel insights into the intricate interplay of embryonic toxicity during the early-life-stage of Japanese medaka, with a specific focus on highlighting the potential hazards associated with halo-MePs compared to the parent compound MeP.
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Affiliation(s)
- Younggun Yoon
- Gyeongnam Department of Environmental Toxicology and Chemistry, Korea Institute of Toxicology (KIT), Gyeongsangnam-do, 52834, South Korea; Division of Biotechnology, SELS Center, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, South Korea.
| | - Min Cho
- Division of Biotechnology, SELS Center, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, South Korea.
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Yoon Y, Cho M. Understanding atrazine elimination via treatment of the enzyme-based Fenton reaction: Kinetics, mechanism, reaction pathway, and metabolites toxicity. Chemosphere 2024; 349:140982. [PMID: 38103653 DOI: 10.1016/j.chemosphere.2023.140982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 12/04/2023] [Accepted: 12/14/2023] [Indexed: 12/19/2023]
Abstract
The degradation kinetics and mechanism of atrazine (ATZ) via an enzyme-based Fenton reaction were investigated at various substrate concentrations and pH values. Toxicological assessment was conducted on ATZ and its degradation products, and the associated reaction pathway was examined. The in situ production of hydrogen peroxide (H2O2) was monitored within the range of 3-15 mM, depending on the increase in glucose concentration, while decreasing the pH to 3.2-5.1 (initial pH of 5.8) or 6.5-7.4 (initial pH of 7.7). The degradation efficiency of ATZ was approximately 2-3 times higher at an initial pH of 5.8 with lower glucose concentrations than at an initial pH of 7.7 with higher substrate concentrations during the enzyme-based Fenton reaction. The apparent pseudo-first-order rate constant for H2O2 decomposition under various conditions in the presence of ferric citrate was 1.9-6.3 × 10-5 s-1. The •OH concentration ([•OH]ss) during the enzyme-based Fenton reaction was 0.5-4.1 × 10-14 M, and the second-order rate constant for ATZ degradation was 1.5-3.3 × 109 M-1 s-1. ATZ intrinsically hinders the growth and development of Arabidopsis thaliana, and its inhibitory effect is marginal, depending on the reaction time of the enzyme-based Fenton process. The ATZ transformation during this process occurs through dealkylation, hydroxylation, and dechlorination via •OH-mediated reactions. The degradation kinetics, mechanism, and toxicological assessment in the present study could contribute to the development and application of enzyme-based Fenton reactions for in situ pollutant abatement. Moreover, the enzyme-based Fenton reaction could be an environmentally benign and applicable approach for eliminating persistent organic matter, such as herbicides, using diverse H2O2-producing microbes and ubiquitous ferric iron with organic complexes.
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Affiliation(s)
- Younggun Yoon
- Division of Biotechnology, SELS Center, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea.
| | - Min Cho
- Division of Biotechnology, SELS Center, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea.
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Yoon Y, Kim B, Cho M. Mineral transformation of poorly crystalline ferrihydrite to hematite and goethite facilitated by an acclimated microbial consortium in electrodes of soil microbial fuel cells. Sci Total Environ 2023; 902:166414. [PMID: 37604374 DOI: 10.1016/j.scitotenv.2023.166414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 08/13/2023] [Accepted: 08/13/2023] [Indexed: 08/23/2023]
Abstract
In this study, we investigated the biogenic mineral transformation of poorly crystalline ferrihydrite in the presence of an acclimated microbial consortium after confirming successful soil microbial fuel cell optimization. The acclimated microbial consortia in the electrodes distinctly transformed amorphous ferrihydrite into crystallized hematite (cathode) and goethite (anode) under ambient culture conditions (30 °C). Serial analysis, including transmission/scanning electron microscopy and X-ray/selected area electron diffraction, confirmed that the biogenically synthesized nanostructures were iron nanospheres (~100 nm) for hematite and nanostars (~300 nm) for goethite. Fe(II) ion production with acetate oxidation via anaerobic respiration was much higher in the anode electrode sample (3.2- to 17.8-fold) than for the cathode electrode or soil samples. Regarding the culturable bacteria from the acclimated microbial consortium, the microbial isolates were more abundant and diverse at the anode. These results provide new insights into the biogeochemistry of iron minerals and microbial fuel cells in a soil environment, along with physiological characters of microbes (i.e., iron-reducing bacteria), for in situ applications in sustainable energy research.
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Affiliation(s)
- Younggun Yoon
- Division of Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, South Korea
| | - Bongkyu Kim
- Division of Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, South Korea.
| | - Min Cho
- Division of Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, South Korea.
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Yoon Y, Kim B, Cho M. Tailored hybrid microbial water disinfection system using sequentially assembled microbial fuel cells and an ultraviolet C light-emitting diode. Water Res 2023; 244:120482. [PMID: 37678038 DOI: 10.1016/j.watres.2023.120482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 08/10/2023] [Accepted: 08/12/2023] [Indexed: 09/09/2023]
Abstract
An integrated ultraviolet C light-emitting diode (UV-C LED) water disinfection system activated by microbial fuel cells (MFCs) was developed, and optimized via electric circuit and device voltage profiling. The intensity of the renewable energy operated, self-powered UV-C LED for E. coli inactivation was calculated by bio-dosimetry to be 2.4 × 10-2 μW cm-2 using fluence-based rate constant (k) of ∼1.03 (±0.11) cm2/mJ to obtain the reduction equivalent fluence kinetics value. Finally, the first-order rate constant for E. coli inactivation during the tailored hybrid disinfection system was found to be 0.53 (±0.1) cm2/mJ by multiplying intensity with 1.09 (±0.1) × 10-5 s-1 derived from the linear regression of E. coli inactivation as a function of time. Furthermore, selected model microbial consisting of two bacteria (Salmonella sp. and Listeria sp.) and three viruses (MS2 bacteriophage, influenza A virus, and murine norovirus-1) were treated with UV-C LED irradiation under controlled experimental conditions to validate the disinfection efficiency of the system. Consequently, the required to achieve significant removal (i.e., >3-log; 99.9%) UV fluence and dose time were calculated to be 4-7 cm2/mJ and 54-76 h and 33-53 cm2/mJ and 400-622 h for model bacterial and viral, respectively. This study expands the applicability of microbial electrochemical system (MES) for microbial disinfection and could be utilized in future MFCs implementation studies for predicting and measuring the kinetics of microbial elimination using a tailored hybrid water treatment system.
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Affiliation(s)
- Younggun Yoon
- Division of Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, Republic of Korea
| | - Bongkyu Kim
- Division of Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, Republic of Korea.
| | - Min Cho
- Division of Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, Republic of Korea.
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Yoon Y, Park H, An S, Ahn JH, Kim B, Shin J, Kim YE, Yeon J, Chung JH, Kim D, Cho M. Bacterial degradation kinetics of poly(Ɛ-caprolactone) (PCL) film by Aquabacterium sp. CY2-9 isolated from plastic-contaminated landfill. J Environ Manage 2023; 335:117493. [PMID: 36822047 DOI: 10.1016/j.jenvman.2023.117493] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/27/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
Despite the identification of numerous bioplastic-degrading bacteria, the inconsistent rate of bioplastic degradation under differing cultivation conditions limits the intercomparison of results on biodegradation kinetics. In this study, we isolated a poly (Ɛ-caprolactone) (PCL)-degrading bacterium from a plastic-contaminated landfill and determined the principle-based biodegradation kinetics in a confined model system of varying cultivation conditions. Bacterial degradation of PCL films synthesized by different polymer number average molecular weights (Mn) and concentrations (% w/v) was investigated using both solid and liquid media at various temperatures. As a result, the most active gram-negative bacterial strain at ambient temperature (28 °C), designated CY2-9, was identified as Aquabacterium sp. Based on 16 S rRNA gene analysis. A clear zone around the bacterial colony was apparently exhibited during solid cultivation, and the diameter sizes increased with incubation time. During biodegradation processes in the PCL film, the thermal stability declined (determined by TGA; weight changes at critical temperature), whereas the crystalline proportion increased (determined by DSC; phase transition with temperature increment), implying preferential degradation of the amorphous region in the polymer structure. The surface morphologies (determined by SEM; electron optical system) were gradually hydrolyzed, creating destruction patterns as well as alterations in functional groups on film surfaces (determined by FT-IR; infrared spectrum of absorption or emission). In the kinetic study based on the weight loss of the PCL film (4.5 × 104 Da, 1% w/v), ∼1.5 (>±0.1) × 10-1 day-1 was obtained from linear regression for both solid and liquid media cultivation at 28 °C. The biodegradation efficiencies increased proportionally by a factor of 2.6-7.9, depending on the lower polymer number average molecular weight and lower concentration. Overall, our results are useful for measuring and/or predicting the degradation rates of PCL films by microorganisms in natural environments.
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Affiliation(s)
- Younggun Yoon
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea; Division of Biotechnology, SELS Center, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea.
| | - Hyojung Park
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Sihyun An
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Jae-Hyung Ahn
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Bongkyu Kim
- Division of Biotechnology, SELS Center, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
| | - Jaedon Shin
- Department of Environmental Engineering, Kunsan National University, Gunsan, 54150, Republic of Korea
| | - Ye-Eun Kim
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Jehyeong Yeon
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Joon-Hui Chung
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Dayeon Kim
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Min Cho
- Division of Biotechnology, SELS Center, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
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Chung JH, Yeon J, Seong HJ, An SH, Kim DY, Yoon Y, Weon HY, Kim JJ, Ahn JH. Distinct Bacterial and Fungal Communities Colonizing Waste Plastic Films Buried for More Than 20 Years in Four Landfill Sites in Korea. J Microbiol Biotechnol 2022; 32:1561-1572. [PMID: 36453077 PMCID: PMC9843814 DOI: 10.4014/jmb.2206.06021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 11/07/2022] [Accepted: 11/10/2022] [Indexed: 12/02/2022]
Abstract
Plastic pollution has been recognized as a serious environmental problem, and microbial degradation of plastics is a potential, environmentally friendly solution to this. Here, we analyzed and compared microbial communities on waste plastic films (WPFs) buried for long periods at four landfill sites with those in nearby soils to identify microbes with the potential to degrade plastics. Fourier-transform infrared spectroscopy spectra of these WPFs showed that most were polyethylene and had signs of oxidation, such as carbon-carbon double bonds, carbon-oxygen single bonds, or hydrogen-oxygen single bonds, but the presence of carbonyl groups was rare. The species richness and diversity of the bacterial and fungal communities on the films were generally lower than those in nearby soils. Principal coordinate analysis of the bacterial and fungal communities showed that their overall structures were determined by their geographical locations; however, the microbial communities on the films were generally different from those in the soils. For the pulled data from the four landfill sites, the relative abundances of Bradyrhizobiaceae, Pseudarthrobacter, Myxococcales, Sphingomonas, and Spartobacteria were higher on films than in soils at the bacterial genus level. At the species level, operational taxonomic units classified as Bradyrhizobiaceae and Pseudarthrobacter in bacteria and Mortierella in fungi were enriched on the films. PICRUSt analysis showed that the predicted functions related to amino acid and carbohydrate metabolism and xenobiotic degradation were more abundant on films than in soils. These results suggest that specific microbial groups were enriched on the WPFs and may be involved in plastic degradation.
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Affiliation(s)
- Joon-hui Chung
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration (RDA), Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Jehyeong Yeon
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration (RDA), Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | | | - Si-Hyun An
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration (RDA), Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Da-Yeon Kim
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration (RDA), Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Younggun Yoon
- College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Hang-Yeon Weon
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration (RDA), Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Jeong Jun Kim
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration (RDA), Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Jae-Hyung Ahn
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration (RDA), Wanju-gun, Jeollabuk-do 55365, Republic of Korea,Corresponding author Phone: +82-63-238-3045 Fax: +82-63-850-3835 E-mail:
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Chung JH, Lee JY, Choi GH, Won M, Yeon J, Yoon Y, An SH, Kim DY, Park I, Kim YE, Ahn JH. Horticoccus luteus gen. nov., sp. nov., A Novel Member of the Phylum Verrucomicrobia Isolated from a Dichlorodiphenyltrichloroethane (DDT)-Contaminated Orchard Soil. Curr Microbiol 2022; 79:340. [PMID: 36209171 DOI: 10.1007/s00284-022-03036-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 09/06/2022] [Indexed: 11/03/2022]
Abstract
Strain KSB-15 T was isolated from an orchard soil that had been contaminated with the insecticide dichlorodiphenyltrichloroethane for about 60 years. The 16S rRNA gene sequence of this strain showed the highest sequence similarities with those of Oleiharenicola alkalitolerans NVTT (95.3%), Opitutus terrae PB90-1 T (94.8%), and Oleiharenicola lentus TWA-58 T (94.7%) among type strains, which are members of the family Opitutaceae within the phylum Verrucomicrobia. Strain KSB-15 T was an obligate aerobe, Gram-negative, non-motile, coccoid or short rod with the cellular dimensions of 0.37-0.62 μm width and 0.43-0.72 μm length. The strain grew at temperatures between 15-37 °C (optimum, 25 °C), at a pH range of 5.0-11.0 (optimum, pH 6.0), and at a NaCl concentration of 0-3% (w/v) (optimum, 0%). It contained menaquinone-7 (MK-7) as the major isoprenoid quinone (94.1%), and iso-C15:0 (34.9%) and anteiso-C15:0 (29.0%) as the two major fatty acids. The genome of strain KSB-15 T was composed of one chromosome with a total size of 4,320,198 bp, a G + C content of 64.3%, 3,393 coding genes (CDS), 14 pseudogenes, and 52 RNA genes. The OrthoANIu values, In silico DDH values and average amino acid identities between strain KSB-15 T and the members of the family Opitutaceae were 71.6 ~ 73.0%, 19.0 ~ 19.9%, and 55.9 ~ 62.0%, respectively. On the basis of our polyphasic taxonomic study, we conclude that strain KSB-15 T should be classified as a novel genus of the family Opitutaceae, for which the name Horticcoccus luteus gen. nov., sp. nov. is proposed.The type strain is KSB-15 T (= KACC 22271 T = DSM 113638 T).
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Affiliation(s)
- Joon-Hui Chung
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Ja-Yeon Lee
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Geun-Hyung Choi
- Residual Chemical Assessment Division, National Institute of Agricultural Sciences, Rural Development Administration, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Miyoung Won
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Jehyeong Yeon
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Younggun Yoon
- College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Si-Hyun An
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Da-Yeon Kim
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - InCheol Park
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Ye-Eun Kim
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Jae-Hyung Ahn
- Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea.
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Affiliation(s)
- Y Jang
- National Institute of Crop Science, Rural Development Administration, Miryang 50424, Korea
| | - H Yi
- National Institute of Crop Science, Rural Development Administration, Miryang 50424, Korea
| | - R Maharjan
- National Institute of Crop Science, Rural Development Administration, Miryang 50424, Korea
| | - M Jeong
- National Institute of Crop Science, Rural Development Administration, Miryang 50424, Korea
| | - Y Yoon
- National Institute of Crop Science, Rural Development Administration, Miryang 50424, Korea
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Yang Y, Ghatge S, Ko Y, Yoon Y, Ahn JH, Kim JJ, Hur HG. Non-specific degradation of chloroacetanilide herbicides by glucose oxidase supported Bio-Fenton reaction. Chemosphere 2022; 292:133417. [PMID: 34954194 DOI: 10.1016/j.chemosphere.2021.133417] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/13/2021] [Accepted: 12/22/2021] [Indexed: 06/14/2023]
Abstract
Bio-Fenton reaction supported by glucose oxidase (GOx) for producing H2O2 was applied to degrade persistent chloroacetanilide herbicides in the presence of Fe (Ⅲ)-citrate at pH 5.5. There were pH decrease to 4.3, the production of 8 mM H2O2 and simultaneous consumption to produce •OH radicals which non-specifically degraded the herbicides. The degradation rates followed the order acetochlor ≈ alachlor ≈ metolachlor > propachlor ≈ butachlor with the degradation percent of 72.8%, 73.4%, 74.0%, 47.4%, and 43.8%, respectively. During the Bio-Fenton degradation, alachlor was dechlorinated and filtered into catechol via the production of intermediates formed through a series of hydrogen atom abstraction and hydrogen oxide radical addition reactions. The current Bio-Fenton reaction leading to the production of •OH radicals could be applied for non-specific oxidative degradation to various persistent organic pollutants under in-situ environmental conditions, considering diverse microbial metabolic systems able to continuously supply H2O2 with ubiquitous Fe(II) and Fe(III) and citrate.
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Affiliation(s)
- Youri Yang
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Sunil Ghatge
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Yongseok Ko
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Younggun Yoon
- Bioremediation Team, National Institute of Agricultural Sciences, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Jae-Hyung Ahn
- Bioremediation Team, National Institute of Agricultural Sciences, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Jeong Jun Kim
- Bioremediation Team, National Institute of Agricultural Sciences, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea.
| | - Hor-Gil Hur
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea.
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11
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Ghatge S, Yang Y, Ko Y, Yoon Y, Ahn JH, Kim JJ, Hur HG. Degradation of sulfonated polyethylene by a bio-photo-fenton approach using glucose oxidase immobilized on titanium dioxide. J Hazard Mater 2022; 423:127067. [PMID: 34488097 DOI: 10.1016/j.jhazmat.2021.127067] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
Polyethylene (PE) plastics are highly recalcitrant and resistant to photo-oxidative degradation due to its chemically inert backbone structure. We applied two novel reactions such as, Bio-Fenton reaction using glucose oxidase (GOx) enzyme alone and Bio-Photo-Fenton reaction using GOx immobilized on TiO2 nanoparticles (TiO2-GOx) under UV radiation, for (bio)degradation of pre-activated PE with sulfonation (SPE). From both the reactions, GC-MS analyses identified small organic acids such as, acetic acid and butanoic acid as a major metabolites released from SPE. In the presence of UV radiation, 21 fold and 17 fold higher amounts of acetic acid (4.78 mM) and butanoic acid (0.17 mM) were released from SPE after 6 h of reaction using TiO2-GOx than free GOx, which released 0.22 mM and 0.01 mM of acetic acid and butanoic acid, respectively. Our results suggest that (bio)degradation and valorization of naturally weathered and oxidized PE using combined reactions of biochemistry, photochemistry and Fenton chemistry could be possible.
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Affiliation(s)
- Sunil Ghatge
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Youri Yang
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Yongseok Ko
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Younggun Yoon
- Bioremediation Team, National Institute of Agricultural Science, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Jae-Hyung Ahn
- Bioremediation Team, National Institute of Agricultural Science, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Jeong Jun Kim
- Bioremediation Team, National Institute of Agricultural Science, 166 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea.
| | - Hor-Gil Hur
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea.
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12
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Park E, Ha J, Lim S, Kim G, Yoon Y. Development of postbiotics by whey bioconversion with Enterococcus faecalis M157 KACC81148BP and Lactococcus lactis CAU2013 KACC81152BP for treating periodontal disease and improving gut health. J Dairy Sci 2021; 104:12321-12331. [PMID: 34600708 DOI: 10.3168/jds.2021-20616] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 08/18/2021] [Indexed: 12/15/2022]
Abstract
This study developed postbiotics with whey bioconversion product produced by Enterococcus faecalis M157 KACC 81148BP, and mixed whey bioconversion products produced by E. faecalis M157 KACC 81148BP and Lactococcus lactis ssp. lactis CAU2013 KACC 81152BP to alleviate periodontitis (PD) and to improve gut health. The powdered whey bioconversion product (EF) produced by E. faecalis M157 KACC 81148BP, mixed whey bioconversion products (EF+LL) from E. faecalis M157 KACC 81148BP and L. lactis CAU2013 KACC 81152BP, and phosphate-buffered saline (PBS; control) were administered orally to PD-induced rats for 8 wk. Infiltration of inflammatory cells and epithelial proliferation in periodontal tissue were found in control, but the lesions were reduced in PD+EF group (administration of EF to PD-induced rats), and no lesions were observed in PD+EF+LL group (administration of EF+LL to PD-induced rats). The bone loss volumes in PD+EF and PD+EF+LL groups were lower than in control. Cytokine production levels related to inflammation were lower and antioxidative stress markers were higher in PD+EF and PD+EF+LL groups than in control for both periodontal tissue and gut. The ratios of Lactobacillus spp. in gut microbiome of PD+EF and PD+EF+LL groups were higher than in control. These results indicate that the whey bioconversion product produced by E. faecalis M157 KACC 81148BP, and mixed whey bioconversion products produced by E. faecalis M157 KACC 81148BP and L. lactis CAU2013 KACC 81152BP are effective on relieving periodontitis and improving the gut health.
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Affiliation(s)
- E Park
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - J Ha
- Center for Consumer Health Research, CHA Advanced Research Institute, Seongnam 13488, Korea
| | - S Lim
- Food Standard Research Center, Korea Food Research Institute, Jeollabuk-do 55365, Korea
| | - G Kim
- Department of Animal Science and and Technology, Chung-Ang University, Anseong 17546, Korea
| | - Y Yoon
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea; Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea.
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13
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Yoon Y, He H, Dodd MC, Lee Y. Degradation and deactivation of plasmid-encoded antibiotic resistance genes during exposure to ozone and chlorine. Water Res 2021; 202:117408. [PMID: 34325102 DOI: 10.1016/j.watres.2021.117408] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
Degradation and deactivation kinetics of an antibiotic resistance gene (ARG) by ozone (O3) and free available chlorine (FAC) were investigated in phosphate-buffered solutions at pH 7 for O3 (in the presence of tert‑butanol), and pH 6.8 or 8.1 for FAC. We used a plasmid (pUC19)-encoded ampicillin resistance gene (ampR) in both extracellular (e-) and intracellular (i-) forms. The second-order rate constant (kO3) for degradation of 2686 base pair (bp) long e-pUC19 toward O3, which was determined by quantitative polymerase chain reaction assay, was calculated to be ~2 × 105 M-1s-1. The deactivation rate constants of e-pUC19 by O3 measured with various recipient E. coli strains were within a factor of 2 compared with the degradation rate constant for e-pUC19. The degradation/deactivation kinetics of i-pUC19 were similar to those of e-pUC19, indicating only a minor influence of cellular components on O3 reactivity toward i-pUC19. For FAC, the degradation and deactivation rates of e-pUC19 were decreased in the presence of tert‑butanol, implying involvement of direct FAC as well as some radical (e.g., •OH) reactions. The degradation rates of e-ampR segments by direct FAC reaction could be explained by a previously-reported two-step sequential reaction model, in which the rate constants increased linearly with e-ampR segment length. The deactivation rate constants of e-pUC19 during exposure to FAC were variable by a factor of up to 4.3 for the different recipient strains, revealing the role of DNA repair in the observed deactivation efficiencies. The degradation/deactivation of e-pUC19 were significantly faster at pH 6.8 than at pH 8.1 owing to pH-dependent FAC speciation variation, whereas i-pUC19 kinetics exhibited much smaller dependence on pH, demonstrating intracellular plasmid DNA reactions with FAC occurred at cytoplasmic pH (~7.5). Our results are useful for predicting and/or measuring the degradation/deactivation efficiency of plasmid-encoded ARGs by water treatment with ozonation and chlorination.
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Affiliation(s)
- Younggun Yoon
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Huan He
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA 98195, United States
| | - Michael C Dodd
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA 98195, United States.
| | - Yunho Lee
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea.
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14
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Yang W, Yoon Y, Lee Y, Oh H, Choi J, Shin S, Lee S, Lee H, Lee Y, Seo J. Photosensitizer-peptoid conjugates for photoinactivation of Gram-negative bacteria: structure-activity relationship and mechanistic studies. Org Biomol Chem 2021; 19:6546-6557. [PMID: 34259297 DOI: 10.1039/d1ob00926e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Multitarget engagement is considered an effective strategy to overcome the threat of bacterial infection, and antimicrobials with multiple mechanisms of action have been successful as natural chemical weaponry. Here, we synthesized a library of photosensitizer-peptoid conjugates (PsPCs) as novel antimicrobial photodynamic therapy (aPDT) agents. The peptoids, linkers, and photosensitizers were varied, and their structure-antimicrobial activity relationships against Escherichia coli were evaluated; PsPC 9 was indicated to be the most promising photoresponsive antimicrobial agent among the synthesized PsPCs. Spectroscopic analyses indicated that 9 generated singlet oxygen upon absorption of visible light (420 nm) while maintaining the weakly helical conformation of the peptoid. Mechanistic studies suggested that damage to the bacterial membrane and cleavage of DNA upon light irradiation were the main causes of bactericidal activity, which was supported by flow cytometry and DNA gel electrophoresis experiments. We demonstrated that the optimal combination of membrane-active peptoids and photosensitizers can generate an efficient aPDT agent that targets multiple sites of bacterial components and kills bacteria by membrane disruption and reactive oxygen species generation.
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Affiliation(s)
- Woojin Yang
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, South Korea.
| | - Younggun Yoon
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, South Korea.
| | - Yunjee Lee
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, South Korea.
| | - Hyeongyeol Oh
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, South Korea.
| | - Jieun Choi
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, South Korea.
| | - Sujin Shin
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, South Korea.
| | - Seongsoo Lee
- Gwangju Center, Korea Basic Science Institute (KBSI), 49 Dosicheomdansaneopro, Nam-gu, Gwangju 61751, South Korea
| | - Hohjai Lee
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, South Korea.
| | - Yunho Lee
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, South Korea.
| | - Jiwon Seo
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, South Korea.
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15
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Choi Y, Park E, Kim S, Ha J, Oh H, Kim Y, Lee Y, Seo Y, Kang J, Lee S, Lee H, Yoon Y, Choi KH. Fermented milk with Lactobacillus curvatus SMFM2016-NK alleviates periodontal and gut inflammation, and alters oral and gut microbiota. J Dairy Sci 2021; 104:5197-5207. [PMID: 33685682 DOI: 10.3168/jds.2020-19625] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/09/2021] [Indexed: 11/19/2022]
Abstract
This study aimed to analyze the effect of milk fermented with Lactobacillus curvatus SMFM2016-NK on periodontal diseases and gut health in a rat model. To improve the effect of Lb. curvatus SMFM2016-NK-fermented milk administration for relieving periodontitis, the periodontitis rat models were treated with the following for 4 wk: 10% skim milk (normal), periodontitis + 10% skim milk (negative control), periodontitis + Lactobacillus rhamnosus GG-fermented milk (positive control), and periodontitis + Lb. curvatus SMFM2016-NK-fermented milk (PD+LCFM). Transcriptional analysis of inflammatory cytokines [tumor necrosis factor α (TNF-α), IL-1β, IL-6, and IL-10] was performed via quantitative reverse-transcription PCR. The changes in the oral and gut microbiomes after administering Lb. curvatus SMFM2016-NK-fermented milk were analyzed with metagenomics sequencing using DNA extracted from the oral gingival tissues and feces from the cecum of the rat models. After treatment with Lb. curvatus SMFM2016-NK-fermented milk, the relative gene expression levels of TNFA and IL1B in the gingiva decreased in the PD+LCFM group compared with those in the negative control group. In the oral microbiome, the proportion of the phylum Proteobacteria in the PD+LCFM group was lower than that in the negative control after treatment with Lb. curvatus SMFM2016-NK-fermented milk. For the effect in the gut, the relative gene expression levels of inflammatory cytokines in the colon between the normal and negative control groups were not different; however, the expression levels of TNFA and IL1B in the PD+LCFM and positive control groups, respectively, were lower than those in the negative control group. The composition and diversity of the gut microbiome differed among normal, periodontitis, and Lb. curvatus SMFM2016-NK-fermented milk treatment groups. These results indicate that Lb. curvatus SMFM2016-NK-fermented milk could alleviate periodontal and gut inflammation and change oral and gut microbiota.
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Affiliation(s)
- Y Choi
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - E Park
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - S Kim
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - J Ha
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - H Oh
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Y Kim
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Y Lee
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Y Seo
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - J Kang
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - S Lee
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - H Lee
- Food Standard Research Center, Korea Food Research Institute, Jeollabuk-do 55365, Korea
| | - Y Yoon
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea; Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea.
| | - K-H Choi
- Department of Oral Microbiology, College of Dentistry, Wonkwang University, Iksan 54538, Korea.
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16
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Marano RBM, Fernandes T, Manaia CM, Nunes O, Morrison D, Berendonk TU, Kreuzinger N, Tenson T, Corno G, Fatta-Kassinos D, Merlin C, Topp E, Jurkevitch E, Henn L, Scott A, Heß S, Slipko K, Laht M, Kisand V, Di Cesare A, Karaolia P, Michael SG, Petre AL, Rosal R, Pruden A, Riquelme V, Agüera A, Esteban B, Luczkiewicz A, Kalinowska A, Leonard A, Gaze WH, Adegoke AA, Stenstrom TA, Pollice A, Salerno C, Schwermer CU, Krzeminski P, Guilloteau H, Donner E, Drigo B, Libralato G, Guida M, Bürgmann H, Beck K, Garelick H, Tacão M, Henriques I, Martínez-Alcalá I, Guillén-Navarro JM, Popowska M, Piotrowska M, Quintela-Baluja M, Bunce JT, Polo-López MI, Nahim-Granados S, Pons MN, Milakovic M, Udikovic-Kolic N, Ory J, Ousmane T, Caballero P, Oliver A, Rodriguez-Mozaz S, Balcazar JL, Jäger T, Schwartz T, Yang Y, Zou S, Lee Y, Yoon Y, Herzog B, Mayrhofer H, Prakash O, Nimonkar Y, Heath E, Baraniak A, Abreu-Silva J, Choudhury M, Munoz LP, Krizanovic S, Brunetti G, Maile-Moskowitz A, Brown C, Cytryn E. A global multinational survey of cefotaxime-resistant coliforms in urban wastewater treatment plants. Environ Int 2020; 144:106035. [PMID: 32835921 DOI: 10.1016/j.envint.2020.106035] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 08/02/2020] [Accepted: 08/03/2020] [Indexed: 05/29/2023]
Abstract
The World Health Organization Global Action Plan recommends integrated surveillance programs as crucial strategies for monitoring antibiotic resistance. Although several national surveillance programs are in place for clinical and veterinary settings, no such schemes exist for monitoring antibiotic-resistant bacteria in the environment. In this transnational study, we developed, validated, and tested a low-cost surveillance and easy to implement approach to evaluate antibiotic resistance in wastewater treatment plants (WWTPs) by targeting cefotaxime-resistant (CTX-R) coliforms as indicators. The rationale for this approach was: i) coliform quantification methods are internationally accepted as indicators of fecal contamination in recreational waters and are therefore routinely applied in analytical labs; ii) CTX-R coliforms are clinically relevant, associated with extended-spectrum β-lactamases (ESBLs), and are rare in pristine environments. We analyzed 57 WWTPs in 22 countries across Europe, Asia, Africa, Australia, and North America. CTX-R coliforms were ubiquitous in raw sewage and their relative abundance varied significantly (<0.1% to 38.3%), being positively correlated (p < 0.001) with regional atmospheric temperatures. Although most WWTPs removed large proportions of CTX-R coliforms, loads over 103 colony-forming units per mL were occasionally observed in final effluents. We demonstrate that CTX-R coliform monitoring is a feasible and affordable approach to assess wastewater antibiotic resistance status.
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Affiliation(s)
- Roberto B M Marano
- Department of Agroecology and Plant Health, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel; Department of Soil Chemistry, Plant Nutrition and Microbiology, Institute of Soil Water and Environmental Sciences, Volcani Center, Agricultural Research Organization, Rishon Lezion, Israel
| | - Telma Fernandes
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Célia M Manaia
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Olga Nunes
- LEPABE, Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Donald Morrison
- School Applied Sciences, Edinburgh Napier University, EH11 4BN, UK
| | | | - Norbert Kreuzinger
- Vienna University of Technology, Institute for Water Quality and Resources Management, Vienna, Austria
| | - Tanel Tenson
- Institute of Technology, University of Tartu, Estonia
| | - Gianluca Corno
- CNR-IRSA Molecular Ecology Group, Largo Tonolli 50, 28922 Verbania, Italy
| | - Despo Fatta-Kassinos
- Civil and Environmental Engineering Department and Nireas International Water Research Center, University of Cyprus, P.O. Box 20537, CY-1678 Nicosia, Cyprus
| | | | - Edward Topp
- Agriculture and Agri-Food Canada, London Research and Development Centre (ON), Canada; Department of Biology, University of Western Ontario, London, ON, Canada
| | - Edouard Jurkevitch
- Department of Agroecology and Plant Health, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Leonie Henn
- School Applied Sciences, Edinburgh Napier University, EH11 4BN, UK
| | - Andrew Scott
- Agriculture and Agri-Food Canada, London Research and Development Centre (ON), Canada
| | - Stefanie Heß
- Institute of Hydrobiology, TU Dresden, Dresden, Germany; Institute of Microbiology, TU Dresden, Dresden, Germany
| | - Katarzyna Slipko
- Vienna University of Technology, Institute for Water Quality and Resources Management, Vienna, Austria
| | - Mailis Laht
- Institute of Technology, University of Tartu, Estonia; Estonian Environmental Research Centre, Estonia
| | - Veljo Kisand
- Institute of Technology, University of Tartu, Estonia
| | - Andrea Di Cesare
- CNR-IRSA Molecular Ecology Group, Largo Tonolli 50, 28922 Verbania, Italy
| | - Popi Karaolia
- Civil and Environmental Engineering Department and Nireas International Water Research Center, University of Cyprus, P.O. Box 20537, CY-1678 Nicosia, Cyprus
| | - Stella G Michael
- Civil and Environmental Engineering Department and Nireas International Water Research Center, University of Cyprus, P.O. Box 20537, CY-1678 Nicosia, Cyprus
| | - Alice L Petre
- Department of Chemical Engineering, University of Alcalá, E-28871 Alcalá de Henares, Madrid, Spain
| | - Roberto Rosal
- Department of Chemical Engineering, University of Alcalá, E-28871 Alcalá de Henares, Madrid, Spain
| | - Amy Pruden
- Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA, USA
| | - Virginia Riquelme
- Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA, USA
| | - Ana Agüera
- Solar Energy Research Centre (CIESOL), Joint Centre University of Almería-CIEMAT, 04120 Almería, Spain
| | - Belen Esteban
- Solar Energy Research Centre (CIESOL), Joint Centre University of Almería-CIEMAT, 04120 Almería, Spain
| | - Aneta Luczkiewicz
- Faculty of Civil and Environmental Engineering, Gdansk University of Technology, G. Narutowicza 11/12 street, 80-233 Gdańsk, Poland
| | - Agnieszka Kalinowska
- Faculty of Civil and Environmental Engineering, Gdansk University of Technology, G. Narutowicza 11/12 street, 80-233 Gdańsk, Poland
| | - Anne Leonard
- University of Exeter Medical School, European Centre for Environment and Human Health, Environment and Sustainability Institute, University of Exeter, Penryn campus, TR10 9FE, UK
| | - William H Gaze
- University of Exeter Medical School, European Centre for Environment and Human Health, Environment and Sustainability Institute, University of Exeter, Penryn campus, TR10 9FE, UK
| | - Anthony A Adegoke
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban South Africa; Department of Microbiology, University of Uyo, Uyo, Nigeria
| | - Thor A Stenstrom
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban South Africa
| | | | | | - Carsten U Schwermer
- Norwegian Institute for Water Research, Gaustadalléen 21, N-0349 Oslo, Norway
| | - Pawel Krzeminski
- Norwegian Institute for Water Research, Gaustadalléen 21, N-0349 Oslo, Norway
| | | | - Erica Donner
- Future Industries Institute, University of South Australia, Adelaide, SA 5001, Australia
| | - Barbara Drigo
- Future Industries Institute, University of South Australia, Adelaide, SA 5001, Australia
| | - Giovanni Libralato
- Department of Biology, University of Naples Federico II, via Cinthia 21, 80126 Naples, Italy
| | - Marco Guida
- Department of Biology, University of Naples Federico II, via Cinthia 21, 80126 Naples, Italy
| | - Helmut Bürgmann
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
| | - Karin Beck
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
| | - Hemda Garelick
- Department of Natural Sciences, Middlesex University, London NW4 4BT, UK
| | - Marta Tacão
- CESAM and Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Portugal
| | - Isabel Henriques
- CESAM and Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Portugal; University of Coimbra, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Isabel Martínez-Alcalá
- Department of Civil Engineering, Av. de los Jerónimos, 135, 30107 Guadalupe, Murcia, Spain
| | - Jose M Guillén-Navarro
- Department of Civil Engineering, Av. de los Jerónimos, 135, 30107 Guadalupe, Murcia, Spain
| | - Magdalena Popowska
- Institute of Microbiology, Department of Applied Microbiology, Faculty of Biology, University of Warsaw, Poland
| | - Marta Piotrowska
- Institute of Microbiology, Department of Applied Microbiology, Faculty of Biology, University of Warsaw, Poland
| | | | - Joshua T Bunce
- School of Engineering, Newcastle University, Newcastle Upon Tyne, UK
| | - Maria I Polo-López
- Solar Energy Research Centre (CIESOL), Joint Centre University of Almería-CIEMAT, 04120 Almería, Spain; Plataforma Solar de Almería - CIEMAT, P.O. Box 22, 04200 Tabernas, Almería, Spain
| | - Samira Nahim-Granados
- Solar Energy Research Centre (CIESOL), Joint Centre University of Almería-CIEMAT, 04120 Almería, Spain; Plataforma Solar de Almería - CIEMAT, P.O. Box 22, 04200 Tabernas, Almería, Spain
| | | | | | | | - Jérôme Ory
- Laboratoire "Microorganisme: Génome et Environnement", Université Clermont Auvergne, BP 10448, F-63000 Clermont-Ferrand, France; CNRS, UMR 6023, LMGE, F-63170 Campus Universitaire des Cézeaux, Clermont-Ferrand, France; Service d'hygiène hospitalière, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Traore Ousmane
- Laboratoire "Microorganisme: Génome et Environnement", Université Clermont Auvergne, BP 10448, F-63000 Clermont-Ferrand, France; CNRS, UMR 6023, LMGE, F-63170 Campus Universitaire des Cézeaux, Clermont-Ferrand, France; Service d'hygiène hospitalière, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | | | - Antoni Oliver
- Laboratori EMATSA, Ctra Valls Km 3, 43130 Tarragona, Spain
| | | | - Jose L Balcazar
- Catalan Institute for Water Research (ICRA), 17003 Girona, Spain
| | - Thomas Jäger
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
| | - Thomas Schwartz
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
| | - Ying Yang
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shichun Zou
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yunho Lee
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Younggun Yoon
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Bastian Herzog
- Chair of Urban Water Systems Engineering, Technical University of Munich (TUM), Germany
| | - Heidrun Mayrhofer
- Chair of Urban Water Systems Engineering, Technical University of Munich (TUM), Germany
| | - Om Prakash
- National Centre for Microbial Resource (NCMR), National Centre for Cell Science, Pune 411007, India
| | - Yogesh Nimonkar
- National Centre for Microbial Resource (NCMR), National Centre for Cell Science, Pune 411007, India
| | - Ester Heath
- Jozef Stefan Institute, Jamova 39 1000 Ljubljana, Slovenia
| | - Anna Baraniak
- National Medicines Institute, Department of Molecular Microbiology, Chelmska 30/34, 00-725 Warsaw, Poland
| | - Joana Abreu-Silva
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Manika Choudhury
- Department of Natural Sciences, Middlesex University, London NW4 4BT, UK
| | - Leonardo P Munoz
- Department of Natural Sciences, Middlesex University, London NW4 4BT, UK
| | | | - Gianluca Brunetti
- Future Industries Institute, University of South Australia, Adelaide, SA 5001, Australia
| | | | - Connor Brown
- Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA, USA
| | - Eddie Cytryn
- Department of Soil Chemistry, Plant Nutrition and Microbiology, Institute of Soil Water and Environmental Sciences, Volcani Center, Agricultural Research Organization, Rishon Lezion, Israel.
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17
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Choi S, Sim W, Jang D, Yoon Y, Ryu J, Oh J, Woo JS, Kim YM, Lee Y. Antibiotics in coastal aquaculture waters: Occurrence and elimination efficiency in oxidative water treatment processes. J Hazard Mater 2020; 396:122585. [PMID: 32298861 DOI: 10.1016/j.jhazmat.2020.122585] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/11/2020] [Accepted: 03/24/2020] [Indexed: 06/11/2023]
Abstract
The influents and effluents of coastal flow-through aquacultures in Korea were monitored for four selected antibiotics (amoxicillin-AMX, florfenicol-FLO, oxolinic acid-OXO, and oxytetracycline-OTC). A number of 177 samples were obtained from 16 aquaculture facilities for a monitoring period of two years. OTC was detected in 93 samples with a median concentration of 116 ng/L. OXO, FLO, and AMX were also detected in 36, 34, and 22 samples with median concentrations of 90, 44, and 63 ng/L, respectively. After antibiotics were applied to fish tanks, the aquaculture effluents were found to contain antibiotics up to several hundred μg/L, indicating that some control measures are required. Bench-scale experiments showed that chlorine and ozone fully eliminated AMX and OTC but not FLO at ≤2 mg/L of oxidant dosage. Reactive halogen species formed in the marine water matrix enhanced the antibiotic degradation. UV254 most effectively eliminated FLO, achieving 60-70 % elimination at 1000 mJ/cm2 of UV fluence. Sequential use of chlorine followed by UV254 demonstrated significant elimination of all four selected antibiotics. The obtained kinetic information for the reactions of these oxidants and UV with the antibiotics and marine aquaculture water constituents could be useful for designing and optimizing the aquaculture water treatment processes.
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Affiliation(s)
- Sangki Choi
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Woohyung Sim
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Dong Jang
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Younggun Yoon
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Jungmoon Ryu
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Jeongbum Oh
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Jeong-Seok Woo
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Young Mo Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimri-ro, Seongdong-gu, Seoul, 133-791, Republic of Korea
| | - Yunho Lee
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea.
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Nihemaiti M, Yoon Y, He H, Dodd MC, Croué JP, Lee Y. Degradation and deactivation of a plasmid-encoded extracellular antibiotic resistance gene during separate and combined exposures to UV 254 and radicals. Water Res 2020; 182:115921. [PMID: 32629318 DOI: 10.1016/j.watres.2020.115921] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/17/2020] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
This study investigated the degradation and deactivation of an extracellular ampicillin resistance gene (ampR) encoded in plasmid pUC19 during exposure to UV254, •OH (generated by UV>290/H2O2), and combined exposure to UV254 and •OH (and/or SO4•-) using UV254/H2O2 and UV254/S2O82-. The degradation rates of ampR measured by quantitative polymerase chain reaction increased with increasing target amplicon length (192-851 bps). The rate constants for the degradation of pUC19 (2686 bps) were calculated as 0.26 cm2/mJ for UV254 and 1.5 × 1011 M-1s-1 for •OH, based on the degradation rates of ampR amplicons and assuming an equal sensitivity of DNA damage across the entire plasmid. DNA repair-proficient Escherichia coli (E. coli) AB1157 strain (wild-type) and its repair-deficient mutants including AB1886 (uvrA-), AB2463 (recA-), AB2480 (uvrA-, recA-), and DH5α (recA-, endA-) were applied as recipient cells in gene transformation assays. Results suggested that the elimination efficiency of transforming activity during UV254 and •OH exposure was dependent on the type of DNA repair genes in recipient E. coli strains. Losses of transforming activity were slower than the degradation of pUC19 by a factor of up to ∼5 (for E. coli DH5α), highlighting the importance of DNA repair in recipient cells. The degradation rates of ampR amplicons were much larger (by a factor of ∼4) in UV254/H2O2 and UV254/S2O82- than UV254 direct photolysis, indicating the significant contribution of •OH and SO4•- to the gene degradation. Not only UV254 and SO4•-, but also •OH contributed to the degradation of ampR during UV254/S2O82-, which was attributed to the conversion of SO4•- to •OH and a 10-fold larger reactivity of •OH towards ampR as compared to SO4•-. However, the enhanced gene degradation by radicals did not lead to a faster elimination of gene transforming activity during UV254/H2O2 and UV254/S2O82-, suggesting that UV254- and radical-induced DNA damage were not additive in their contributions to losses of gene transforming activity. Wastewater effluent organic matter (EfOM) accelerated the degradation of ampR during UV254 irradiation by means of reactive species production through indirect photolysis reactions, whereas EfOM mainly acted as a radical scavenger during UV254/H2O2 and UV254/S2O82- treatments.
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Affiliation(s)
- Maolida Nihemaiti
- Curtin Water Quality Research Centre, Department of Chemistry, Curtin University, GPO Box U1987, Perth, 6845, Australia
| | - Younggun Yoon
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Huan He
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, 98195-2700, United States
| | - Michael C Dodd
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, 98195-2700, United States
| | - Jean-Philippe Croué
- Curtin Water Quality Research Centre, Department of Chemistry, Curtin University, GPO Box U1987, Perth, 6845, Australia; Institut de Chimie des Milieux et des Materiaux IC2MP UMR 7285 CNRS, Universite de Poitiers, France.
| | - Yunho Lee
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea.
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Cho Y, Choi S, Yoon Y, Park S, Lee E, Kim J, Park JH, Ahn S. 370 The Impact of Oxygen and Pentoxifylline in Hypoxic State. Ann Emerg Med 2019. [DOI: 10.1016/j.annemergmed.2019.08.331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Kim TY, Park S, Yoon Y, Lee JH, Jeon J, Kim MS, Kim Y, Kim MG, Hur HG. Biogenic Hematite from Bacteria: Facile Synthesis of Secondary Nanoclusters for Lithium Storage Capacity. ACS Appl Mater Interfaces 2019; 11:6948-6957. [PMID: 30681323 DOI: 10.1021/acsami.8b18894] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ferrihydrite, or iron(III) (oxyhydr)oxide (Fe(OH)3), a representative scavenger of environmentally relevant toxic elements, has been repurposed as a low-cost and scalable precursor of well-developed hematite (α-Fe2O3) secondary nanoclusters with a hierarchically structured morphology for lithium-ion anode materials. Here, we report that the bacteria Clostridium sp. C8, isolated from a methane-gas-producing consortium, can synthesize self-assembled secondary hematite nanoclusters (∼150 nm) composed of small nanoparticles (∼15 nm) through the molecular structural rearrangement of amorphous ferrihydrite under mild conditions. The biogenic hematite particles, wrapped with graphene oxide reduced in situ by the reducing bacteria Shewanella sp. HN-41 via one-pot synthesis, deliver an excellent reversible capacity of ∼1000 mA h g-1 after 100 cycles at a current density of 1 A g-1. Furthermore, the heat-treated hematite/rGO exhibits a capacity of 820 mA h g-1 at a high current density of 5 A g-1 and a reversible capacity of up to 1635 mA h g-1 at a current density of 100 mA g-1. This study provides an easy, eco-efficient, and scalable microbiological synthetic route to produce hierarchical hematite/rGO secondary nanoclusters with potential as high-performance Li-ion anode materials.
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Affiliation(s)
- Tae-Yang Kim
- School of Earth Sciences and Environmental Engineering , Gwangju Institute of Science and Technology , Gwangju 61005 , Republic of Korea
| | - Sunhwa Park
- School of Earth Sciences and Environmental Engineering , Gwangju Institute of Science and Technology , Gwangju 61005 , Republic of Korea
| | - Younggun Yoon
- School of Earth Sciences and Environmental Engineering , Gwangju Institute of Science and Technology , Gwangju 61005 , Republic of Korea
| | - Ji-Hoon Lee
- Department of Bioenvironmental Chemistry , Chonbuk National University , Jeonju 561-756 , Republic of Korea
| | - Jeongsuk Jeon
- Pohang Accelerator Laboratory , Pohang University of Science and Technology , Pohang 790-784 , Republic of Korea
| | - Mi Sug Kim
- Pohang Accelerator Laboratory , Pohang University of Science and Technology , Pohang 790-784 , Republic of Korea
| | - Yoojin Kim
- Pohang Accelerator Laboratory , Pohang University of Science and Technology , Pohang 790-784 , Republic of Korea
| | - Min Gyu Kim
- Pohang Accelerator Laboratory , Pohang University of Science and Technology , Pohang 790-784 , Republic of Korea
| | - Hor-Gil Hur
- School of Earth Sciences and Environmental Engineering , Gwangju Institute of Science and Technology , Gwangju 61005 , Republic of Korea
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Pegram MD, Pivot X, Cortes J, Curigliano G, Yoon Y, Lim J, Song S, Hong E. Abstract P6-17-09: Event-free survival by ADCC status from a follow-up study comparing SB3 (trastuzumab biosimilar) with reference trastuzumab for HER2 positive breast cancer in neoadjuvant setting. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p6-17-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: SB3 has been approved by the European Commission as a biosimilar of reference trastuzumab (TRZ). Equivalent breast pathologic complete response (bpCR) rate and comparable event-free survival (EFS) and overall survival between SB3 and TRZ have been reported.1-3 Upon monitoring quality attributes of TRZ for the development of SB3, a marked downward shift in antibody-dependent cell-mediated cytotoxicity activities (ADCC) was observed in TRZ lots with expiry dates from Aug 2018 to Dec 2019.4 Some of these lots were used in this study. The objective of this report is to evaluate event-free survival by ADCC status from an additional one-year follow-up study.
Methods: Patients with HER2 positive early or locally advanced breast cancer were randomly assigned to receive SB3 or TRZ in neoadjuvant setting concurrently with chemotherapy. Patients then underwent surgery followed by adjuvant SB3 or TRZ. After completion of therapy, patients from selected countries participated in a long-term follow-up study. In TRZ, patients exposed to at least one shifted ADCC lot and those not exposed to shifted ADCC lot during neoadjuvant period were considered as “Exposed” and “Unexposed,” respectively. EFS was defined as the time from the date of randomization to the date when the first event occurred. An event was defined as disease recurrence or progression (local, regional, distant or contralateral) or death due to any cause. EFS after additional one-year follow-up was analyzed by ADCC status in the long-term follow-up set (LFS).
Results: A total of 367 patients (SB3, N=186; TRZ, N=181) were included in the LFS. Within TRZ, 55 patients were Unexposed and 126 patients were Exposed. At a median follow-up duration of 30.1 months in SB3 and 30.2 months in TRZ from initiation of study treatment, 4.8% patients in SB3, 3.6% in Unexposed and 10.3% in Exposed experienced events. 4.3% patients in SB3, 1.8% in Unexposed and 9.5% in Exposed experienced recurrence after surgery (Table). Two-year EFS rate was 96.7% in SB3, 98.2% in Unexposed and 92.5% in Exposed.
Conclusion: A significantly higher proportion of patients experienced events in Exposed compared to Unexposed (HR 0.07, 95% CI 0.01-0.58, p-value=0.0137). No significant difference in EFS was found between SB3 and Unexposed. Although this study has a relatively short follow-up and has not been powered to evaluate the impact of ADCC on survival, these results suggest a possible correlation between ADCC and clinical efficacy. Further long-term results will follow.
Summary of Event-free Survival (LFS) TRZEFS Hazard ratio (95% CI), p-value SB3 N=186All N=181Unexposed N=55Exposed N=126SB3 vs TRZ AllSB3 vs TRZ UnexposedTRZ Unexposed vs TRZ ExposedPatients with event, n (%)9 (4.8%)15 (8.3%)2 (3.6%)13 (10.3%)0.49 (0.21, 1.14) p=0.09751.19 (0.23, 6.18) p=0.83760.07 (0.01, 0.58) p=0.0137Recurrence after surgery8 (4.3%)13 (7.2%)1 (1.8%)12 (9.5%) Progression before surgery1 (0.5%)1 (0.6%)1 (1.8%)0 (0.0%) Death0 (0.0%)1 (0.6%)0 (0.0%)1 (0.8%)
Reference:
1. Pivot X et al. J Clin Oncol. 2018; 36:968-74
2. Pivot X et al. Eur J Cancer. 2018; 93:19-27
3. Pivot X et al. J Clin Oncol. 2018; 36 (suppl; abstr e12631)
4. Kim S et al. MAbs. 2017; 9:704-14
Citation Format: Pegram MD, Pivot X, Cortes J, Curigliano G, Yoon Y, Lim J, Song S, Hong E. Event-free survival by ADCC status from a follow-up study comparing SB3 (trastuzumab biosimilar) with reference trastuzumab for HER2 positive breast cancer in neoadjuvant setting [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P6-17-09.
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Affiliation(s)
- MD Pegram
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - X Pivot
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - J Cortes
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - G Curigliano
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - Y Yoon
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - J Lim
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - S Song
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - E Hong
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
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22
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Lee Y, Choi Y, Lee S, Lee H, Kim S, Ha J, Lee J, Oh H, Kim Y, Yoon Y. Occurrence of pathogenic Vibrio parahaemolyticus
in seafood distribution channels and their antibiotic resistance profiles in S. Korea. Lett Appl Microbiol 2019; 68:128-133. [DOI: 10.1111/lam.13099] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/10/2018] [Accepted: 11/13/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Y. Lee
- Department of Food and Nutrition; Sookmyung Women's University; Seoul Korea
| | - Y. Choi
- Department of Food and Nutrition; Sookmyung Women's University; Seoul Korea
| | - S. Lee
- Department of Food and Nutrition; Sookmyung Women's University; Seoul Korea
| | - H. Lee
- Department of Food and Nutrition; Sookmyung Women's University; Seoul Korea
| | - S. Kim
- Department of Food and Nutrition; Sookmyung Women's University; Seoul Korea
| | - J. Ha
- Department of Food and Nutrition; Sookmyung Women's University; Seoul Korea
| | - J. Lee
- Department of Food and Nutrition; Sookmyung Women's University; Seoul Korea
| | - H. Oh
- Department of Food and Nutrition; Sookmyung Women's University; Seoul Korea
| | - Y. Kim
- Department of Food and Nutrition; Sookmyung Women's University; Seoul Korea
| | - Y. Yoon
- Department of Food and Nutrition; Sookmyung Women's University; Seoul Korea
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23
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Lee H, Yoon Y, Choi Y, Lee H. IMPORTANT CONTRIBUTION OF HEALTH CARE ACCESSIBILITY IN COLORECTAL CANCER SCREENING AWARENESS AND LITERACY. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- H Lee
- University of Alabama, Tuscaloosa
| | - Y Yoon
- University of Minnesota-Twin Cities
| | | | - H Lee
- University of Alabama, Tuscaloosa
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24
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Troja E, Ryan G, Piro L, van Eerten H, Cenko SB, Yoon Y, Lee SK, Im M, Sakamoto T, Gatkine P, Kutyrev A, Veilleux S. A luminous blue kilonova and an off-axis jet from a compact binary merger at z = 0.1341. Nat Commun 2018; 9:4089. [PMID: 30327476 PMCID: PMC6191439 DOI: 10.1038/s41467-018-06558-7] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 09/12/2018] [Indexed: 12/03/2022] Open
Abstract
The recent discovery of a gamma-ray burst (GRB) coincident with the gravitational-wave (GW) event GW170817 revealed the existence of a population of low-luminosity short duration gamma-ray transients produced by neutron star mergers in the nearby Universe. These events could be routinely detected by existing gamma-ray monitors, yet previous observations failed to identify them without the aid of GW triggers. Here we show that GRB150101B is an analogue of GRB170817A located at a cosmological distance. GRB150101B is a faint short burst characterized by a bright optical counterpart and a long-lived X-ray afterglow. These properties are unusual for standard short GRBs and are instead consistent with an explosion viewed off-axis: the optical light is produced by a luminous kilonova, while the observed X-rays trace the GRB afterglow viewed at an angle of ~13°. Our findings suggest that these properties could be common among future electromagnetic counterparts of GW sources. A faint gamma-ray burst (GRB 170817A) has been recently detected in coincidence with the gravitational wave (GW) event GW 170817. Here, the authors report that another faint short GRB at a cosmological distance (GRB150101B) and its late time emission are analogous to the neutron star merger event GRB 170817A.
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Affiliation(s)
- E Troja
- Department of Astronomy, University of Maryland, College Park, MD, 20742-4111, USA. .,Astrophysics Science Division, NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD, 20771, USA.
| | - G Ryan
- Joint Space-Science Institute, University of Maryland, College Park, MD, 20742, USA
| | - L Piro
- INAF, Istituto di Astrofisica e Planetologia Spaziali, via Fosso del Cavaliere 100, 00133, Rome, Italy
| | - H van Eerten
- Department of Physics, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - S B Cenko
- Astrophysics Science Division, NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD, 20771, USA.,Joint Space-Science Institute, University of Maryland, College Park, MD, 20742, USA
| | - Y Yoon
- Center for the Exploration for the Origin of the Universe, Astronomy Program, Department of Physics and Astronomy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - S-K Lee
- Center for the Exploration for the Origin of the Universe, Astronomy Program, Department of Physics and Astronomy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - M Im
- Center for the Exploration for the Origin of the Universe, Astronomy Program, Department of Physics and Astronomy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - T Sakamoto
- Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara-shi Kanagawa, 252-5258, Japan
| | - P Gatkine
- Department of Astronomy, University of Maryland, College Park, MD, 20742-4111, USA
| | - A Kutyrev
- Department of Astronomy, University of Maryland, College Park, MD, 20742-4111, USA.,Astrophysics Science Division, NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD, 20771, USA
| | - S Veilleux
- Department of Astronomy, University of Maryland, College Park, MD, 20742-4111, USA.,Joint Space-Science Institute, University of Maryland, College Park, MD, 20742, USA
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Park J, Moon S, Cho H, Kim D, Yoon Y, Cho Y. 350 Effect of Team-Based CPR Training for Emergency Medical Services Providers on Out-of-Hospital Return of Spontaneous Circulation in Cardiac Arrest Patients. Ann Emerg Med 2018. [DOI: 10.1016/j.annemergmed.2018.08.355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Affiliation(s)
- S Lim
- Crop Production Technology Research Division, National Institute of Crop Science, RDA, Miryang 50424, Republic of Korea
| | - Y Yoon
- Crop Production Technology Research Division, National Institute of Crop Science, RDA, Miryang 50424, Republic of Korea
| | - Y-W Jang
- Crop Production Technology Research Division, National Institute of Crop Science, RDA, Miryang 50424, Republic of Korea
| | - S Bae
- Crop Production Technology Research Division, National Institute of Crop Science, RDA, Miryang 50424, Republic of Korea
| | - Y-H Lee
- Planning & Coordination Division, National Institute of Crop Science, RDA, Wanju 55365, Republic of Korea
| | - B C Lee
- Crop Foundation Division, National Institute of Crop Science, RDA, Wanju 55365, Republic of Korea
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Yoon Y, Hwang T, Lee H. Prediction of radiographic abnormalities by the use of bag-of-features and convolutional neural networks. Vet J 2018; 237:43-48. [PMID: 30089544 DOI: 10.1016/j.tvjl.2018.05.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 05/24/2018] [Accepted: 05/25/2018] [Indexed: 11/27/2022]
Abstract
This study evaluated the feasibility of bag-of-features (BOF) and convolutional neural networks (CNN) for computer-aided detection in distinguishing normal from abnormal radiographic findings. Computed thoracic radiographs of dogs were collected. For the purposes of this study, radiographic findings were used to distinguish between normal and abnormal in the following areas: (1) normal cardiac silhouette vs. cardiomegaly, (2) normal lung vs. abnormal lung patterns, (3) normal mediastinal position vs. mediastinal shift, (4) normal pleural space vs. pleural effusion, and (5) normal pleural space vs. pneumothorax. Images for training and testing the models consisted of ventrodorsal and lateral projection images of the same scale. The number of images used for each finding are as follow: 3142 for cardiomegaly (1571 normal and 1571 abnormal from 1143 dogs), 2086 for lung pattern (1043 normal and 1043 abnormal from 1247 dogs), 892 for mediastinal shift (446 normal and 446 abnormal from 387 dogs), 940 for pleural effusion (470 normal and 470 abnormal from 284 dogs), and 78 for pneumothorax (39 normal and 39 abnormal from 61 dogs). All data samples were divided so that 60% would be used for training the algorithms and 40% for testing the two models. The performance of the classifiers was evaluated by calculating the accuracy, sensitivity and specificity. The accuracy of both models ranged from 79.6% to 96.9% in the testing set. CNN showed higher accuracy (CNN; 92.9-96.9% and BOF; 79.6-96.9%) and sensitivity (CNN; 92.1-100% and BOF; 74.1-94.8%) than BOF. In conclusion, both BOF and CNN have potential to be useful for improving work efficiency by double reading.
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Affiliation(s)
- Y Yoon
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 30488, South Korea
| | - T Hwang
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 30488, South Korea
| | - H Lee
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 30488, South Korea.
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Affiliation(s)
- Y Yoon
- Department of Information SystemsVirginia Commonwealth University VA 23284-4000 Richmond USA
| | - T Guimaraes
- Tennessee Technological University TN 38505 Cookeville USA
| | - AB Clevenson
- Artificial Intelligence Task Force, E. I. DuPont de Nemours & Company TX 77339 Kingwood USA
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Yoon Y, Chung HJ, Wen Di DY, Dodd MC, Hur HG, Lee Y. Inactivation efficiency of plasmid-encoded antibiotic resistance genes during water treatment with chlorine, UV, and UV/H 2O 2. Water Res 2017; 123:783-793. [PMID: 28750328 DOI: 10.1016/j.watres.2017.06.056] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/19/2017] [Accepted: 06/21/2017] [Indexed: 06/07/2023]
Abstract
This study assessed the inactivation efficiency of plasmid-encoded antibiotic resistance genes (ARGs) both in extracellular form (e-ARG) and present within Escherichia coli (intracellular form, i-ARG) during water treatment with chlorine, UV (254 nm), and UV/H2O2. A quantitative real-time PCR (qPCR) method was used to quantify the ARG damage to ampR (850 bp) and kanR (806 bp) amplicons, both of which are located in the pUC4K plasmid. The plate count and flow cytometry methods were also used to determine the bacterial inactivation parameters, such as culturability and membrane damage, respectively. In the first part of the study, the kinetics of E. coli inactivation and ARG damage were determined in phosphate buffered solutions. The ARG damage occurred much more slowly than E. coli inactivation in all cases. To achieve 4-log reduction of ARG concentration at pH 7, the required chlorine exposure and UV fluence were 33-72 (mg × min)/L for chlorine and 50-130 mJ/cm2 for UV and UV/H2O2. After increasing pH from 7 to 8, the rates of ARG damage decreased for chlorine, while they did not vary for UV and UV/H2O2. The i-ARGs mostly showed lower rates of damage compared to the e-ARGs due to the protective roles of cellular components against oxidants and UV. The contribution of OH radicals to i-ARG damage was negligible in UV/H2O2 due to significant OH radical scavenging by cellular components. In all cases, the ARG damage rates were similar for ampR versus kanR, except for the chlorination of e-ARGs, in which the damage to ampR occurred faster than that to kanR. Chlorine and UV dose-dependent ARG inactivation levels determined in a wastewater effluent matrix could be reasonably explained by the kinetic data obtained from the phosphate buffered solutions and the expected oxidant (chlorine and OH radicals) demands by water matrix components. These results can be useful in optimizing chlorine and UV-based disinfection systems to achieve ARG inactivation.
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Affiliation(s)
- Younggun Yoon
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Hay Jung Chung
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Doris Yoong Wen Di
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Michael C Dodd
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Hor-Gil Hur
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Yunho Lee
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea.
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Yoon Y, Oh H, Ahn YT, Kwon M, Jung Y, Park W, Hwang TM, Yang W, Kang JW. Evaluation of the O3/graphene-based materials catalytic process: pH effect and iopromide removal. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.03.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Gwak E, Lee H, Lee S, Oh MH, Park BY, Ha J, Lee J, Kim S, Yoon Y. Evaluation of Salmonella Growth at Low Concentrations of NaNO2 and NaCl in Processed Meat Products Using Probabilistic Model. Asian-Australas J Anim Sci 2016; 29:1013-21. [PMID: 26954121 PMCID: PMC4932578 DOI: 10.5713/ajas.15.0713] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 11/06/2015] [Accepted: 12/15/2015] [Indexed: 11/27/2022]
Abstract
This study developed probabilistic models to predict Salmonella growth in processed meat products formulated with varying concentrations of NaCl and NaNO2. A five-strain mixture of Salmonella was inoculated in nutrient broth supplemented with NaCl (0%, 0.25%, 0.5%, 0.75%, 0.5%, 1.0%, 1.25%, and 1.75%) and NaNO2 (0, 15, 30, 45, 60, 75, 90, 105, and 120 ppm). The inoculated samples were then incubated under aerobic and anaerobic conditions at 4°C, 7°C, 10°C, 12°C, and 15°C for up to 60 days. Growth (assigned the value of 1) or no growth (assigned the value of 0) for each combination was evaluated by turbidity. These growth response data were analyzed with a logistic regression to evaluate the effect of NaCl and NaNO2 on Salmonella growth. The results from the developed model were compared to the observed data obtained from the frankfurters to evaluate the performance of the model. Results from the developed model showed that a single application of NaNO2 at low concentrations did not inhibit Salmonella growth, whereas NaCl significantly (p<0.05) inhibited Salmonella growth at 10°C, 12°C, and 15°C, regardless of the presence of oxygen. At 4°C and 7°C, Salmonella growth was not observed in either aerobic or anaerobic conditions. When NaNO2 was combined with NaCl, the probability of Salmonella growth decreased. The validation value confirmed that the performance of the developed model was appropriate. This study indicates that the developed probabilistic models should be useful for describing the combinational effect of NaNO2 and NaCl on inhibiting Salmonella growth in processed meat products.
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Affiliation(s)
| | | | | | - M-H. Oh
- National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - B-Y. Park
- National Institute of Animal Science, RDA, Wanju 55365, Korea
| | | | | | | | - Y. Yoon
- Corresponding Author: Y. Yoon. Tel: +82-2-2077-7585, Fax: +82-2-710-9479, E-mail:
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Ryu KJ, Suh SW, Kim HW, Lee DH, Yoon Y, Hwang JH. Quantitative analysis of a spinal surgeon’s learning curve for scoliosis surgery. Bone Joint J 2016; 98-B:679-85. [DOI: 10.1302/0301-620x.98b5.36356] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 10/27/2015] [Indexed: 11/05/2022]
Abstract
Aims The aim of this study was a quantitative analysis of a surgeon’s learning curve for scoliosis surgery and the relationship between the surgeon’s experience and post-operative outcomes, which has not been previously well described. Patients and Methods We have investigated the operating time as a function of the number of patients to determine a specific pattern; we analysed factors affecting the operating time and compared intra- and post-operative outcomes. We analysed 47 consecutive patients undergoing scoliosis surgery performed by a single, non-trained scoliosis surgeon. Operating time was recorded for each of the four parts of the procedures: dissection, placement of pedicle screws, reduction of the deformity and wound closure. Results The median operating time was 310 minutes (interquartile range 277.5 to 432.5). The pattern showed a continuous decreasing trend in operating time until the patient number reached 23 to 25, after which it stabilised with fewer patient-dependent changes. The operating time was more affected by the patient number (r =- 0.75) than the number of levels fused (r = 0.59). Blood loss (p = 0.016) and length of stay in hospital (p = 0.012) were significantly less after the operating time stabilised. Post-operative functional outcome scores and the rate of complications showed no significant differences. Take home message: We describe a detailed learning curve for scoliosis surgery based on a single surgeon’s practise, providing useful information for novice scoliosis surgeons and for those responsible for training in spinal surgery. Cite this article: Bone Joint J 2016;98-B:679–85.
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Affiliation(s)
- K. J. Ryu
- Severance Children's Hospital, Yonsei
University College of Medicine, Seoul 120-752, Korea
| | - S. W. Suh
- Korea University Guro Hospital, Seoul
152-703, Korea
| | - H. W. Kim
- Severance Children's Hospital, Yonsei
University College of Medicine, Seoul 120-752, Korea
| | - D. H. Lee
- Severance Children's Hospital, Yonsei
University College of Medicine, Seoul 120-752, Korea
| | - Y. Yoon
- Severance Children's Hospital, Yonsei
University College of Medicine, Seoul 120-752, Korea
| | - J. H. Hwang
- Severance Children's Hospital, Yonsei
University College of Medicine, Seoul 120-752, Korea
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Li K, Seok J, Park K, Yoon Y, Kim K, Seo S. Copy-number variation of the filaggrin gene in Korean patients with atopic dermatitis: what really matters, ‘number’ or ‘variation’? Br J Dermatol 2016; 174:1098-100. [DOI: 10.1111/bjd.14287] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- K. Li
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
| | - J. Seok
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
| | - K.Y. Park
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
| | - Y. Yoon
- Department of Microbiology; Chung-Ang University College of Medicine; Seoul Korea
| | - K.H. Kim
- Department of Dermatology; Seoul National University College of Medicine; Seoul Korea
| | - S.J. Seo
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
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Abstract
The flame propagation is affected by flame shape angle and wall heat transfer coeff. A minimum flame propagation speed is observed for planar flames with nearly zero flame shape angle for 580 h−2 K−1 wall heat transfer coeff. range.
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Affiliation(s)
- Aravind B.
- Department of Aerospace Engineering
- Indian Institute of Technology Bombay
- Mumbai
- India
| | - Ratna Kishore Velamati
- Department of Mechanical Engineering
- Amrita School of Engineering
- Amrita Vishwa Vidyapeetham
- Amrita University
- Coimbatore
| | - Aditya P. Singh
- Department of Aerospace Engineering
- Indian Institute of Technology Bombay
- Mumbai
- India
| | - Y. Yoon
- School of Mechanical and Aerospace Engineering
- Seoul National University
- Seoul
- South Korea
| | - S. Minaev
- Far Eastern Federal University
- Vladivostok
- Russia
| | - Sudarshan Kumar
- Department of Aerospace Engineering
- Indian Institute of Technology Bombay
- Mumbai
- India
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Iwase K, Morishita J, Yoon Y, Matsunobu Y, Shimizu Y, Yasumatsu S. SU-E-I-76: A New Approach for Evaluating Visibility of Static Image Displayed On Liquid-Crystal Display by Using Detection Time. Med Phys 2015. [DOI: 10.1118/1.4924073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Yoon Y, Park M, Kim H, Kim K, Kim J, Morishita J. SU-E-I-49: Simulation Study for Removing Scatter Radiation in Cesium-Iodine Based Flat Panel Detector System. Med Phys 2015. [DOI: 10.1118/1.4924046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Shimizu Y, Morishita J, Yoon Y, Iwase K, Yasumatsu S, Matsunobu Y. SU-E-I-75: Development of New Biological Fingerprints for Patient Recognition to Identify Misfiled Images in a PACS Server. Med Phys 2015. [DOI: 10.1118/1.4924072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Orii M, Tanimoto T, Yokoyama M, Ota S, Kubo T, Hirata K, Tanaka A, Imanishi T, Akasaka T, Michelsen M, Pena A, Mygind N, Hoest N, Prescott E, Abd El Dayem S, Battah A, Abd El Azzez F, Ahmed A, Fattoh A, Ismail R, Andjelkovic K, Kalimanovska Ostric D, Nedeljkovic I, Andjelkovic I, Rashid H, Abuel Enien H, Ibraheem M, Vago H, Toth A, Csecs I, Czimbalmos C, Suhai FI, Kecskes K, Becker D, Simor T, Merkely B, D'ascenzi F, Pelliccia A, Natali B, Cameli M, Lisi M, Focardi M, Corrado D, Bonifazi M, Mondillo S, Zaha V, Kim G, Su K, Zhang J, Mikush N, Ross J, Palmeri M, Young L, Tadic M, Ilic S, Celic V, Jaimes C, Gonzalez Mirelis J, Gallego M, Goirigolzarri J, Pellegrinet M, Poli S, Prati G, Vriz O, Di Bello V, Carerj S, Zito C, Mateescu A, Popescu B, Antonini-Canterin F, Chatzistamatiou E, Moustakas G, Memo G, Konstantinidis D, Mpampatzeva Vagena I, Manakos K, Traxanas K, Vergi N, Feretou A, Kallikazaros I, Hewing B, Theres L, Dreger H, Spethmann S, Stangl K, Baumann G, Knebel F, Uejima T, Itatani K, Nakatani S, Lancellotti P, Seo Y, Zamorano J, Ohte N, Takenaka K, Naar J, Mortensen L, Johnson J, Winter R, Shahgaldi K, Manouras A, Braunschweig F, Stahlberg M, Coisne D, Al Arnaout AM, Tchepkou C, Raud Raynier P, Diakov C, Degand B, Christiaens L, Barbier P, Mirea O, Cefalu C, Savioli G, Guglielmo M, Maltagliati A, O'neill L, Walsh K, Hogan J, Manzoor T, Ahern B, Owens P, Savioli G, Guglielmo M, Mirea O, Cefalu C, Barbier P, Marta L, Abecasis J, Reis C, Ribeiras R, Andrade M, Mendes M, D'andrea A, Stanziola A, Di Palma E, Martino M, Lanza M, Betancourt V, Maglione M, Calabro' R, Russo M, Bossone E, Vogt MO, Meierhofer C, Rutz T, Fratz S, Ewert P, Roehlig C, Kuehn A, Storsten P, Eriksen M, Remme E, Boe E, Smiseth O, Skulstad H, Ereminiene E, Ordiene R, Ivanauskas V, Vaskelyte J, Stoskute N, Kazakauskaite E, Benetis R, Marketou M, Parthenakis F, Kontaraki J, Zacharis E, Maragkoudakis S, Logakis J, Roufas K, Vougia D, Vardas P, Dado E, Dado E, Knuti G, Djamandi J, Shota E, Sharka I, Saka J, Halmai L, Nemes A, Kardos A, Neubauer S, Kurnicka K, Domienik-Karlowicz J, Lichodziejewska B, Goliszek S, Grudzka K, Krupa M, Dzikowska-Diduch O, Ciurzynski M, Pruszczyk P, Chung H, Kim J, Yoon Y, Min P, Lee B, Hong B, Rim S, Kwon H, Choi E, Soya O, Kuryata O, Kakihara R, Naruse C, Inayoshi A, El Sebaie M, Frer A, Abdelsamie M, Eldamanhory A, Ciampi Q, Cortigiani L, Simioniuc A, Manicardi C, Villari B, Picano E, Sicari R, Ferferieva V, Deluyker D, Lambrichts I, Rigo J, Bito V, Kuznetsov V, Yaroslavskaya E, Krinochkin D, Pushkarev G, Gorbatenko E, Trzcinski P, Michalski B, Lipiec P, Szymczyk E, Peczek L, Nawrot B, Chrzanowski L, Kasprzak J, Todaro M, Zito C, Khandheria B, Cusma-Piccione M, La Carrubba S, Antonini-Canterin F, Di Bello V, Oreto G, Di Bella G, Carerj S, Gunyeli E, Oliveira Da Silva C, Sahlen A, Manouras A, Winter R, Shahgaldi K, Spampinato R, Tasca M, Roche E Silva J, Strotdrees E, Schloma V, Dmitrieva Y, Dobrovie M, Borger M, Mohr F, Calin A, Rosca M, Beladan C, Mirescu Craciun A, Gurzun M, Mateescu A, Enache R, Ginghina C, Popescu B, Antova E, Georgievska Ismail L, Srbinovska E, Andova V, Peovska I, Davceva J, Otljanska M, Vavulkis M, Tsuruta H, Kohsaka S, Murata M, Yasuda R, Dan M, Yashima F, Inohara T, Maekawa Y, Hayashida K, Fukuda K, Migliore R, Adaniya M, Barranco M, Miramont G, Gonzalez S, Tamagusuku H, Abid L, Ben Kahla S, Charfeddine S, Abid D, Kammoun S, Amano M, Izumi C, Miyake M, Tamura T, Kondo H, Kaitani K, Nakagawa Y, Ghulam Ali S, Fusini L, Tamborini G, Muratori M, Gripari P, Bottari V, Celeste F, Cefalu' C, Alamanni F, Pepi M, Teixeira R, Monteiro R, Garcia J, Ribeiro M, Cardim N, Goncalves L, Miglioranza M, Muraru D, Cavalli G, Addetia K, Cucchini U, Mihaila S, Tadic M, Veronesi F, Lang R, Badano L, Galian Gay L, Gonzalez Alujas M, Teixido Tura G, Gutierrez Garcia L, Rodriguez-Palomares J, Evangelista Masip A, Conte L, Fabiani I, Giannini C, La Carruba S, De Carlo M, Barletta V, Petronio A, Di Bello V, Mahmoud H, Al-Ghamdi M, Ghabashi A, Salaun E, Zenses A, Evin M, Collart F, Pibarot P, Habib G, Rieu R, Fabregat Andres O, Estornell Erill J, Cubillos-Arango A, Bochard-Villanueva B, Chacon-Hernandez N, Higueras-Ortega L, Perez-Bosca L, Paya-Serrano R, Ridocci-Soriano F, Cortijo-Gimeno J, Mzoughi K, Zairi I, Jabeur M, Ben Moussa F, Mrabet K, Kamoun S, Fennira S, Ben Chaabene A, Kraiem S, Schnell F, Betancur J, Daudin M, Simon A, Lentz P, Tavard F, Hernandes A, Carre F, Garreau M, Donal E, Abduch M, Vieira M, Antunes M, Mathias W, Mady C, Arteaga E, Alencar A, Tesic M, Djordjevic-Dikic A, Beleslin B, Giga V, Trifunovic D, Petrovic O, Jovanovic I, Petrovic M, Stepanovic J, Vujisic-Tesic B, Choi E, Cha J, Chung H, Kim K, Yoon Y, Kim J, Lee B, Hong B, Rim S, Kwon H, Bergler-Klein J, Geier C, Maurer G, Gyongyosi M, Cortes Garcia M, Oliva M, Navas M, Orejas M, Rabago R, Martinez M, Briongos S, Romero A, Rey M, Farre J, Ruisanchez Villar C, Ruiz Guerrero L, Rubio Ruiz S, Lerena Saenz P, Gonzalez Vilchez F, Hernandez Hernandez J, Armesto Alonso S, Blanco Alonso R, Martin Duran R, Gonzalez-Gay M, Novo G, Marturana I, Bonomo V, Arvigo L, Evola V, Karfakis G, Lo Presti M, Verga S, Novo S, Petroni R, Acitelli A, Bencivenga S, Cicconetti M, Di Mauro M, Petroni A, Romano S, Penco M, Park S, Kim S, Kim M, Shim W, Tadic M, Majstorovic A, Ivanovic B, Celic V, Driessen MMP, Meijboom F, Mertens L, Dragulescu A, Friedberg M, De Stefano F, Santoro C, Buonauro A, Muscariello R, Lo Iudice F, Ierano P, Esposito R, Galderisi M, Sunbul M, Kivrak T, Durmus E, Yildizeli B, Mutlu B, Rodrigues A, Daminello E, Echenique L, Cordovil A, Oliveira W, Monaco C, Lira E, Fischer C, Vieira M, Morhy S, Mignot A, Jaussaud J, Chevalier L, Lafitte S, D'ascenzi F, Cameli M, Curci V, Alvino F, Lisi M, Focardi M, Corrado D, Bonifazi M, Mondillo S, Ikonomidis I, Pavlidis G, Lambadiari V, Kousathana F, Triantafyllidi H, Varoudi M, Dimitriadis G, Lekakis J, Cho JS, Cho E, Yoon H, Ihm S, Lee J, Molnar AA, Kovacs A, Apor A, Tarnoki A, Tarnoki D, Horvath T, Maurovich-Horvat P, Jermendy G, Kiss R, Merkely B, Petrovic-Nagorni S, Ciric-Zdravkovic S, Stanojevic D, Jankovic-Tomasevic R, Atanaskovic V, Mitic V, Todorovic L, Dakic S, Coppola C, Piscopo G, Galletta F, Maurea C, Esposito E, Barbieri A, Maurea N, Kaldararova M, Tittel P, Kantorova A, Vrsanska V, Kollarova E, Hraska V, Nosal M, Ondriska M, Masura J, Simkova I, Tadeu I, Azevedo O, Lourenco M, Luis F, Lourenco A, Planinc I, Bagadur G, Bijnens B, Ljubas J, Baricevic Z, Skoric B, Velagic V, Milicic D, Cikes M, Campanale CM, Di Maria S, Mega S, Nusca A, Marullo F, Di Sciascio G, El Tahlawi M, Abdallah M, Gouda M, Gad M, Elawady M, Igual Munoz B, Maceira Gonzalez Alicia A, Estornell Erill J, Donate Betolin L, Vazquez Sanchez Alejandro A, Valera Martinez F, Sepulveda- Sanchez P, Cervera Zamora A, Piquer Gil Marina M, Montero- Argudo A, Naka K, Evangelou D, Lakkas L, Kalaitzidis R, Bechlioulis A, Gkirdis I, Tzeltzes G, Nakas G, Pappas K, Michalis L, Mansencal N, Bagate F, Arslan M, Siam-Tsieu V, Deblaise J, El Mahmoud R, Dubourg O, Wierzbowska-Drabik K, Plewka M, Kasprzak J, Bandera F, Generati G, Pellegrino M, Alfonzetti E, Labate V, Villani S, Gaeta M, Guazzi M, Bandera F, Generati G, Pellegrino M, Labate V, Alfonzetti E, Guazzi M, Generati G, Bandera F, Pellegrino M, Labate V, Alfonzetti E, Guazzi M, Grycewicz T, Szymanska K, Grabowicz W, Lubinski A, Sotaquira M, Pepi M, Tamborini G, Caiani E, Bochard Villanueva B, Chacon-Hernandez N, Fabregat-Andres O, Garcia-Gonzalez P, Cubillos-Arango A, De La Espriella-Juan R, Albiach-Montanana C, Berenguer-Jofresa A, Perez-Bosca J, Paya-Serrano R, Cheng HL, Huang CH, Wang YC, Chou WH, Kuznetsov V, Melnikov N, Krinochkin D, Kolunin G, Enina T, Sierraalta W, Le Bihan D, Barretto R, Assef J, Gospos M, Buffon M, Ramos A, Garcia A, Pinto I, Souza A, Mueller H, Reverdin S, Ehret G, Conti L, Dos Santos S, Abdel Moneim SS, Nhola LF, Huang R, Kohli M, Longenbach S, Green M, Villarraga HR, Bordun KA, Jassal DS, Mulvagh SL, Evangelista A, Madeo A, Piras P, Giordano F, Giura G, Teresi L, Gabriele S, Re F, Puddu P, Torromeo C, Suwannaphong S, Vathesatogkit P, See O, Yamwong S, Katekao W, Sritara P, Iliuta L, Szulik M, Streb W, Wozniak A, Lenarczyk R, Sliwinska A, Kalarus Z, Kukulski T, Weng KP, Lin CC, Hein S, Lehmann L, Kossack M, Juergensen L, Katus H, Hassel D, Turrini F, Scarlini S, Giovanardi P, Messora R, Mannucci C, Bondi M, Olander R, Sundholm J, Ojala T, Andersson S, Sarkola T, Karolyi M, Kocsmar I, Raaijmakers R, Kitslaar P, Horvath T, Szilveszter B, Merkely B, Maurovich-Horvat P. Poster session 4: Friday 5 December 2014, 08:30-12:30 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2014. [DOI: 10.1093/ehjci/jeu256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Shahgaldi K, Hegner T, Da Silva C, Fukuyama A, Takeuchi M, Uema A, Kado Y, Nagata Y, Hayashi A, Otani K, Fukuda S, Yoshitani H, Otsuji Y, Morhy S, Lianza A, Afonso T, Oliveira W, Tavares G, Rodrigues A, Vieira M, Warth A, Deutsch A, Fischer C, Tezynska-Oniszk I, Turska-Kmiec A, Kawalec W, Dangel J, Maruszewski B, Bokiniec R, Burczynski P, Borszewska-Kornacka K, Ziolkowska L, Zuk M, Troshina A, Dzhalilova D, Poteshkina N, Hamitov F, Warita S, Kawasaki M, Tanaka R, Yagasaki H, Minatoguchi S, Wanatabe T, Ono K, Noda T, Wanatabe S, Minatoguchi S, Angelis A, Ageli K, Vlachopoulos C, Felekos I, Ioakimidis N, Aznaouridis K, Vaina S, Abdelrasoul M, Tsiamis E, Stefanadis C, Cameli M, Sparla S, D'ascenzi F, Fineschi M, Favilli R, Pierli C, Henein M, Mondillo S, Lindqvist P, Tossavainen E, Gonzalez M, Soderberg S, Henein M, Holmgren A, Strachinaru M, Catez E, Jousten I, Pavel O, Janssen C, Morissens M, Chatzistamatiou E, Moustakas G, Memo G, Konstantinidis D, Mpampatzeva Vagena I, Manakos K, Traxanas K, Vergi N, Feretou A, Kallikazaros I, Tsai WC, Sun YT, Lee WH, Yang LT, Liu YW, Lee CH, Li WT, Mizariene V, Bieseviciene M, Karaliute R, Verseckaite R, Vaskelyte J, Lesauskaite V, Chatzistamatiou E, Mpampatseva Vagena I, Manakos K, Moustakas G, Konstantinidis D, Memo G, Mitsakis O, Kasakogias A, Syros P, Kallikazaros I, Hristova K, Cornelissen G, Singh R, Shiue I, Coisne D, Madjalian AM, Tchepkou C, Raud Raynier P, Degand B, Christiaens L, Baldenhofer G, Spethmann S, Dreger H, Sanad W, Baumann G, Stangl K, Stangl V, Knebel F, Azzaz S, Kacem S, Ouali S, Risos L, Dedobbeleer C, Unger P, Sinem Cakal S, Elif Eroglu E, Baydar O, Beytullah Cakal B, Mehmet Vefik Yazicioglu M, Mustafa Bulut M, Cihan Dundar C, Kursat Tigen K, Birol Ozkan B, Ali Metin Esen A, Tournoux F, Chequer R, Sroussi M, Hyafil F, Rouzet F, Leguludec D, Baum P, Stoebe S, Pfeiffer D, Hagendorff A, Fang F, Lau M, Zhang Q, Luo X, Wang X, Chen L, Yu C, Zaborska B, Smarz K, Makowska E, Kulakowski P, Budaj A, Bengrid TM, Zhao Y, Henein MY, Caminiti G, D'antoni V, Cardaci V, Conti V, Volterrani M, Warita S, Kawasaki M, Yagasaki H, Minatoguchi S, Nagaya M, Ono K, Noda T, Watanabe S, Houle H, Minatoguchi S, Gillebert TC, Chirinos JA, Claessens TC, Raja MW, De Buyzere ML, Segers P, Rietzschel ER, Kim K, Cha J, Chung H, Kim J, Yoon Y, Lee B, Hong B, Rim S, Kwon H, Choi E, Pyankov V, Aljaroudi W, Matta S, Al-Shaar L, Habib R, Gharzuddin W, Arnaout S, Skouri H, Jaber W, Abchee A, Bouzas Mosquera A, Peteiro J, Broullon F, Constanso Conde I, Bescos Galego H, Martinez Ruiz D, Yanez Wonenburger J, Vazquez Rodriguez J, Alvarez Garcia N, Castro Beiras A, Gunyeli E, Oliveira Da Silva C, Shahgaldi K, Manouras A, Winter R, Meimoun P, Abouth S, Martis S, Boulanger J, Elmkies F, Zemir H, Detienne J, Luycx-Bore A, Clerc J, Rodriguez Palomares JF, Gutierrez L, Maldonado G, Garcia G, Galuppo V, Gruosso D, Teixido G, Gonzalez Alujas M, Evangelista A, Garcia Dorado D, Rechcinski T, Wierzbowska-Drabik K, Wejner-Mik P, Szymanska B, Jerczynska H, Lipiec P, Kasprzak J, El-Touny K, El-Fawal S, Loutfi M, El-Sharkawy E, Ashour S, Boniotti C, Carminati M, Fusini L, Andreini D, Pontone G, Pepi M, Caiani E, Oryshchyn N, Kramer B, Hermann S, Liu D, Hu K, Ertl G, Weidemann F, Ancona F, Miyazaki S, Slavich M, Figini F, Latib A, Chieffo A, Montorfano M, Alfieri O, Colombo A, Agricola E, Nogueira M, Branco L, Rosa S, Portugal G, Galrinho A, Abreu J, Cacela D, Patricio L, Fragata J, Cruz Ferreira R, Igual Munoz B, Erdociain Perales M, Maceira Gonzalez A, Estornell Erill Jordi J, Donate Bertolin L, Vazquez Sanchez Alejandro A, Miro Palau Vicente V, Cervera Zamora A, Piquer Gil M, Montero Argudo A, Girgis HYA, Illatopa V, Cordova F, Espinoza D, Ortega J, Khan U, Islam A, Majumder A, Girgis HYA, Bayat F, Naghshbandi E, Naghshbandi E, Samiei N, Samiei N, Malev E, Omelchenko M, Vasina L, Zemtsovsky E, Piatkowski R, Kochanowski J, Budnik M, Scislo P, Opolski G, Kochanowski J, Piatkowski R, Scislo P, Budnik M, Marchel M, Opolski G, Abid L, Ben Kahla S, Abid D, Charfeddine S, Maaloul I, Ben Jmaa M, Kammoun S, Hashimoto G, Suzuki M, Yoshikawa H, Otsuka T, Isekame Y, Yamashita H, Kawase I, Ozaki S, Nakamura M, Sugi K, Benvenuto E, Leggio S, Buccheri S, Bonura S, Deste W, Tamburino C, Monte IP, Gripari P, Fusini L, Muratori M, Tamborini G, Ghulam Ali S, Bottari V, Cefalu' C, Bartorelli A, Agrifoglio M, Pepi M, Zambon E, Iorio A, Di Nora C, Abate E, Lo Giudice F, Di Lenarda A, Agostoni P, Sinagra G, Timoteo AT, Galrinho A, Moura Branco L, Rio P, Aguiar Rosa S, Oliveira M, Silva Cunha P, Leal A, Cruz Ferreira R, Zemanek D, Tomasov P, Belehrad M, Kostalova J, Kara T, Veselka J, Hassanein M, El Tahan S, El Sharkawy E, Shehata H, Yoon Y, Choi H, Seo H, Lee S, Kim H, Youn T, Kim Y, Sohn D, Choi G, Mielczarek M, Huttin O, Voilliot D, Sellal J, Manenti V, Carillo S, Olivier A, Venner C, Juilliere Y, Selton-Suty C, Butz T, Faber L, Brand M, Piper C, Wiemer M, Noelke J, Sasko B, Langer C, Horstkotte D, Trappe H, Maysou L, Tessonnier L, Jacquier A, Serratrice J, Copel C, Stoppa A, Seguier J, Saby L, Verschueren A, Habib G, Petroni R, Bencivenga S, Di Mauro M, Acitelli A, Cicconetti M, Romano S, Petroni A, Penco M, Maceira Gonzalez AM, Cosin-Sales J, Igual B, Sancho-Tello R, Ruvira J, Mayans J, Choi J, Kim S, Almeida A, Azevedo O, Amado J, Picarra B, Lima R, Cruz I, Pereira V, Marques N, Chatzistamatiou E, Konstantinidis D, Manakos K, Mpampatseva Vagena I, Moustakas G, Memo G, Mitsakis O, Kasakogias A, Syros P, Kallikazaros I, Cho E, Kim J, Hwang B, Kim D, Jang S, Jeon H, Cho J, Chatzistamatiou E, Konstantinidis D, Memo G, Mpapatzeva Vagena I, Moustakas G, Manakos K, Traxanas K, Vergi N, Feretou A, Kallikazaros I, Jedrzejewska I, Konopka M, Krol W, Swiatowiec A, Dluzniewski M, Braksator W, Sefri Noventi S, Sugiri S, Uddin I, Herminingsih S, Arif Nugroho M, Boedijitno S, Caro Codon J, Blazquez Bermejo Z, Valbuena Lopez SC, Lopez Fernandez T, Rodriguez Fraga O, Torrente Regidor M, Pena Conde L, Moreno Yanguela M, Buno Soto A, Lopez-Sendon JL, Stevanovic A, Dekleva M, Kim M, Kim S, Kim Y, Shim J, Park S, Park S, Kim Y, Shim W, Kozakova M, Muscelli E, Morizzo C, Casolaro A, Paterni M, Palombo C, Bayat F, Nazmdeh M, Naghshbandi E, Nateghi S, Tomaszewski A, Kutarski A, Brzozowski W, Tomaszewski M, Nakano E, Harada T, Takagi Y, Yamada M, Takano M, Furukawa T, Akashi Y, Lindqvist G, Henein M, Backman C, Gustafsson S, Morner S, Marinov R, Hristova K, Geirgiev S, Pechilkov D, Kaneva A, Katova T, Pilosoff V, Pena Pena M, Mesa Rubio D, Ruiz Ortin M, Delgado Ortega M, Romo Penas E, Pardo Gonzalez L, Rodriguez Diego S, Hidalgo Lesmes F, Pan Alvarez-Ossorio M, Suarez De Lezo Cruz-Conde J, Gospodinova M, Sarafov S, Guergelcheva V, Vladimirova L, Tournev I, Denchev S, Mozenska O, Segiet A, Rabczenko D, Kosior D, Gao S, Eliasson M, Polte C, Lagerstrand K, Bech-Hanssen O, Morosin M, Piazza R, Leonelli V, Leiballi E, Pecoraro R, Cinello M, Dell' Angela L, Cassin M, Sinagra G, Nicolosi G, Savu O, Carstea N, Stoica E, Macarie C, Moldovan H, Iliescu V, Chioncel O, Moral S, Gruosso D, Galuppo V, Teixido G, Rodriguez-Palomares J, Gutierrez L, Evangelista A, Jansen Klomp WW, Peelen L, Spanjersberg A, Brandon Bravo Bruinsma G, Van 'T Hof A, Laveau F, Hammoudi N, Helft G, Barthelemy O, Michel P, Petroni T, Djebbar M, Boubrit L, Le Feuvre C, Isnard R, Bandera F, Generati G, Pellegrino M, Alfonzetti E, Labate V, Villani S, Gaeta M, Guazzi M, Gabriels C, Lancellotti P, Van De Bruaene A, Voilliot D, De Meester P, Buys R, Delcroix M, Budts W, Cruz I, Stuart B, Caldeira D, Morgado G, Almeida A, Lopes L, Fazendas P, Joao I, Cotrim C, Pereira H, Weissler Snir A, Greenberg G, Shapira Y, Weisenberg D, Monakier D, Nevzorov R, Sagie A, Vaturi M, Bando M, Yamada H, Saijo Y, Takagawa Y, Sawada N, Hotchi J, Hayashi S, Hirata Y, Nishio S, Sata M, Jackson T, Sammut E, Siarkos M, Lee L, Carr-White G, Rajani R, Kapetanakis S, Ciobotaru V, Yagasaki H, Kawasaki M, Tanaka R, Minatoguchi S, Sato N, Amano K, Warita S, Ono K, Noda T, Minatoguchi S, Breithardt OA, Razavi H, Nabutovsky Y, Ryu K, Gaspar T, Kosiuk J, John S, Prinzen F, Hindricks G, Piorkowski C, Nemchyna O, Tovstukha V, Chikovani A, Golikova I, Lutai M, Nemes A, Kalapos A, Domsik P, Lengyel C, Orosz A, Forster T, Nordenfur T, Babic A, Giesecke A, Bulatovic I, Ripsweden J, Samset E, Winter R, Larsson M, Blazquez Bermejo Z, Lopez Fernandez T, Caro Codon J, Valbuena S, Caro Codon J, Mori Junco R, Moreno Yanguela M, Lopez-Sendon J, Pinto-Teixeira P, Branco L, Galrinho A, Oliveira M, Cunha P, Silva T, Rio P, Feliciano J, Nogueira-Silva M, Ferreira R, Shkolnik E, Vasyuk Y, Nesvetov V, Shkolnik L, Varlan G, Bajraktari G, Ronn F, Ibrahimi P, Jashari F, Jensen S, Henein M, Kang MK, Mun HS, Choi S, Cho JR, Han S, Lee N, Cho IJ, Heo R, Chang H, Shin S, Shim C, Hong G, Chung N. Poster session 3: Thursday 4 December 2014, 14:00-18:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2014. [DOI: 10.1093/ehjci/jeu253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Bang JY, Lee J, Yoon Y, Seo HS, Song JG, Hwang G. Acute kidney injury after infrarenal abdominal aortic aneurysm surgery: a comparison of AKIN and RIFLE criteria for risk prediction. Br J Anaesth 2014; 113:993-1000. [DOI: 10.1093/bja/aeu320] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Lee B, Kwon H, Cho M, Yoon Y. Clinical implication of critical shear stress in patients with advanced coronary artery disease. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kim K, Lee H, Gwak E, Yoon Y. Kinetic Behavior of Escherichia coli on Various Cheeses under Constant and Dynamic Temperature. Asian-Australas J Anim Sci 2014; 27:1013-8. [PMID: 25050044 PMCID: PMC4093577 DOI: 10.5713/ajas.2013.13579] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 01/14/2014] [Accepted: 02/28/2014] [Indexed: 11/27/2022]
Abstract
In this study, we developed kinetic models to predict the growth of pathogenic Escherichia coli on cheeses during storage at constant and changing temperatures. A five-strain mixture of pathogenic E. coli was inoculated onto natural cheeses (Brie and Camembert) and processed cheeses (sliced Mozzarella and sliced Cheddar) at 3 to 4 log CFU/g. The inoculated cheeses were stored at 4, 10, 15, 25, and 30°C for 1 to 320 h, with a different storage time being used for each temperature. Total bacteria and E. coli cells were enumerated on tryptic soy agar and MacConkey sorbitol agar, respectively. E. coli growth data were fitted to the Baranyi model to calculate the maximum specific growth rate (μ max; log CFU/g/h), lag phase duration (LPD; h), lower asymptote (log CFU/g), and upper asymptote (log CFU/g). The kinetic parameters were then analyzed as a function of storage temperature, using the square root model, polynomial equation, and linear equation. A dynamic model was also developed for varying temperature. The model performance was evaluated against observed data, and the root mean square error (RMSE) was calculated. At 4°C, E. coli cell growth was not observed on any cheese. However, E. coli growth was observed at 10°C to 30°C with a μ max of 0.01 to 1.03 log CFU/g/h, depending on the cheese. The μ max values increased as temperature increased, while LPD values decreased, and μ max and LPD values were different among the four types of cheese. The developed models showed adequate performance (RMSE = 0.176-0.337), indicating that these models should be useful for describing the growth kinetics of E. coli on various cheeses.
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Lee S, Kim S, Lee D, Kim M, Won J, Park S, Yoon Y, Choi D, Ko Y. Long-term outcomes of endovascular treatment for aortic pseudoaneurysm in Behcet’s disease. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Fransson J, Kang MG, Yoon Y, Xiao S, Ochiai Y, Reno JL, Aoki N, Bird JP. Tuning the Fano resonance with an intruder continuum. Nano Lett 2014; 14:788-793. [PMID: 24460187 DOI: 10.1021/nl404133d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Through a combination of experiment and theory we establish the possibility of achieving strong tuning of Fano resonances (FRs), by allowing their usual two-path geometry to interfere with an additional, "intruder", continuum. As the coupling strength to this intruder is varied, we predict strong modulations of the resonance line shape that, in principle at least, may exceed the amplitude of the original FR itself. For a proof-of-concept demonstration of this phenomenon, we construct a nanoscale interferometer from nonlocally coupled quantum point contacts and utilize the unique features of their density of states to realize the intruder. External control of the intruder coupling is enabled by means of an applied magnetic field, in the presence of which we demonstrate the predicted distortions of the FR. This general scheme for resonant control should be broadly applicable to a variety of wave-based systems, opening up the possibility of new applications in areas such as chemical and biological sensing and secure communications.
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Affiliation(s)
- J Fransson
- Department of Physics and Astronomy, Uppsala University , Box 534, SE-751 21, Uppsala, Sweden
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Abdovic E, Abdovic S, Hristova K, Hristova K, Katova T, Katova T, Gocheva N, Gocheva N, Pavlova M, Pavlova M, Gurzun MM, Ionescu A, Canpolat U, Yorgun H, Sunman H, Sahiner L, Kaya E, Ozer N, Tokgozoglu L, Kabakci G, Aytemir K, Oto A, Gonella A, D'ascenzo F, Casasso F, Conte E, Margaria F, Grosso Marra W, Frea S, Morello M, Bobbio M, Gaita F, Seo H, Lee S, Lee J, Yoon Y, Park E, Kim H, Park S, Lee H, Kim Y, Sohn D, Nemes A, Domsik P, Kalapos A, Orosz A, Lengyel C, Forster T, Enache R, Muraru D, Popescu B, Calin A, Nastase O, Botezatu D, Purcarea F, Rosca M, Beladan C, Ginghina C, Canpolat U, Aytemir K, Ozer N, Yorgun H, Sahiner L, Kaya E, Oto A, Muraru D, Piasentini E, Mihaila S, Padayattil Jose' S, Peluso D, Ucci L, Naso P, Puma L, Iliceto S, Badano L, Cikes M, Jakus N, Sutherland G, Haemers P, D'hooge J, Claus P, Yurdakul S, Oner F, Direskeneli H, Sahin T, Cengiz B, Ercan G, Bozkurt A, Aytekin S, Osa Saez AM, Rodriguez-Serrano M, Lopez-Vilella R, Buendia-Fuentes F, Domingo-Valero D, Quesada-Carmona A, Miro-Palau V, Arnau-Vives M, Palencia-Perez M, Rueda-Soriano J, Lipczynska M, Piotr Szymanski P, Anna Klisiewicz A, Lukasz Mazurkiewicz L, Piotr Hoffman P, Kim K, Cho S, Ahn Y, Jeong M, Cho J, Park J, Chinali M, Franceschini A, Matteucci M, Doyon A, Esposito C, Del Pasqua A, Rinelli G, Schaefer F, Kowalik E, Klisiewicz A, Rybicka J, Szymanski P, Biernacka E, Hoffman P, Lee S, Kim W, Yun H, Jung L, Kim E, Ko J, Ruddox V, Norum I, Edvardsen T, Baekkevar M, Otterstad J, Erdei T, Edwards J, Braim D, Yousef Z, Fraser A, Melcher A, Reiner B, Hansen A, Strandberg L, Caidahl K, Wellnhofer E, Kriatselis C, Gerd-Li H, Furundzija V, Thnabalasingam U, Fleck E, Graefe M, Park Y, Moon J, Ahn T, Baydar O, Kadriye Kilickesmez K, Ugur Coskun U, Polat Canbolat P, Veysel Oktay V, Umit Yasar Sinan U, Okay Abaci O, Cuneyt Kocas C, Sinan Uner S, Serdar Kucukoglu S, Ferferieva V, Claus P, Rademakers F, D'hooge J, Le TT, Wong P, Tee N, Huang F, Tan R, Altman M, Logeart D, Bergerot C, Gellen B, Pare C, Gerard S, Sirol M, Vicaut E, Mercadier J, Derumeaux GA, Park TH, Park JI, Shin SW, Yun SH, Lee JE, Makavos G, Kouris N, Keramida K, Dagre A, Ntarladimas I, Kostopoulos V, Damaskos D, Olympios C, Leong D, Piers S, Hoogslag G, Hoke U, Thijssen J, Ajmone Marsan N, Schalij M, Bax J, Zeppenfeld K, Delgado V, Rio P, Branco L, Galrinho A, Cacela D, Abreu J, Timoteo A, Teixeira P, Pereira-Da-Silva T, Selas M, Cruz Ferreira R, Popa BA, Zamfir L, Novelli E, Lanzillo G, Karazanishvili L, Musica G, Stelian E, Benea D, Diena M, Cerin G, Fusini L, Mirea O, Tamborini G, Muratori M, Gripari P, Ghulam Ali S, Cefalu' C, Maffessanti F, Andreini D, Pepi M, Mamdoo F, Goncalves A, Peters F, Matioda H, Govender S, Dos Santos C, Essop M, Kuznetsov VA, Yaroslavskaya EI, Pushkarev GS, Krinochkin DV, Kolunin GV, Bennadji A, Hascoet S, Dulac Y, Hadeed K, Peyre M, Ricco L, Clement L, Acar P, Ding W, Zhao Y, Lindqvist P, Nilson J, Winter R, Holmgren A, Ruck A, Henein M, Illatopa V, Cordova F, Espinoza D, Ortega J, Cavalcante J, Patel M, Katz W, Schindler J, Crock F, Khanna M, Khandhar S, Tsuruta H, Kohsaka S, Murata M, Yasuda R, Tokuda H, Kawamura A, Maekawa Y, Hayashida K, Fukuda K, Le Tourneau T, Kyndt F, Lecointe S, Duval D, Rimbert A, Merot J, Trochu J, Probst V, Le Marec H, Schott J, Veronesi F, Addetia K, Corsi C, Lamberti C, Lang R, Mor-Avi V, Gjerdalen GF, Hisdal J, Solberg E, Andersen T, Radunovic Z, Steine K, Maffessanti F, Gripari P, Tamborini G, Muratori M, Fusini L, Ferrari C, Caiani E, Alamanni F, Bartorelli A, Pepi M, D'ascenzi F, Cameli M, Iadanza A, Lisi M, Reccia R, Curci V, Sinicropi G, Henein M, Pierli C, Mondillo S, Rekhraj S, Hoole S, Mcnab D, Densem C, Boyd J, Parker K, Shapiro L, Rana B, Kotrc M, Vandendriessche T, Bartunek J, Claeys M, Vanderheyden M, Paelinck B, De Bock D, De Maeyer C, Vrints C, Penicka M, Silveira C, Albuquerque E, Lamprea D, Larangeiras V, Moreira C, Victor Filho M, Alencar B, Silveira A, Castillo J, Zambon E, Iorio A, Carriere C, Pantano A, Barbati G, Bobbo M, Abate E, Pinamonti B, Di Lenarda A, Sinagra G, Salemi VMC, Tavares L, Ferreira Filho J, Oliveira A, Pessoa F, Ramires F, Fernandes F, Mady C, Cavarretta E, Lotrionte M, Abbate A, Mezzaroma E, De Marco E, Peruzzi M, Loperfido F, Biondi-Zoccai G, Frati G, Palazzoni G, Park TH, Lee JE, Lee DH, Park JS, Park K, Kim MH, Kim YD, Van 'T Sant J, Gathier W, Leenders G, Meine M, Doevendans P, Cramer M, Poyhonen P, Kivisto S, Holmstrom M, Hanninen H, Schnell F, Betancur J, Daudin M, Simon A, Carre F, Tavard F, Hernandez A, Garreau M, Donal E, Calore C, Muraru D, Badano L, Melacini P, Mihaila S, Denas G, Naso P, Casablanca S, Santi F, Iliceto S, Aggeli C, Venieri E, Felekos I, Anastasakis A, Ritsatos K, Kakiouzi V, Kastellanos S, Cutajar I, Stefanadis C, Palecek T, Honzikova J, Poupetova H, Vlaskova H, Kuchynka P, Linhart A, Elmasry O, Mohamed M, Elguindy W, Bishara P, Garcia-Gonzalez P, Cozar-Santiago P, Bochard-Villanueva B, Fabregat-Andres O, Cubillos-Arango A, Valle-Munoz A, Ferrer-Rebolleda J, Paya-Serrano R, Estornell-Erill J, Ridocci-Soriano F, Jensen M, Havndrup O, Christiansen M, Andersen P, Axelsson A, Kober L, Bundgaard H, Karapinar H, Kaya A, Uysal E, Guven A, Kucukdurmaz Z, Oflaz M, Deveci K, Sancakdar E, Gul I, Yilmaz A, Tigen MK, Karaahmet T, Dundar C, Yalcinsoy M, Tasar O, Bulut M, Takir M, Akkaya E, Jedrzejewska I, Braksator W, Krol W, Swiatowiec A, Dluzniewski M, Lipari P, Bonapace S, Zenari L, Valbusa F, Rossi A, Lanzoni L, Molon G, Canali G, Campopiano E, Barbieri E, Rueda Calle E, Alfaro Rubio F, Gomez Gonzalez J, Gonzalez Santos P, Cameli M, Lisi M, Focardi M, D'ascenzi F, Solari M, Galderisi M, Mondillo S, Pratali L, Bruno RM, Corciu A, Comassi M, Passera M, Gastaldelli A, Mrakic-Sposta S, Vezzoli A, Picano E, Perry R, Penhall A, De Pasquale C, Selvanayagam J, Joseph M, Simova II, Katova TM, Kostova V, Hristova K, Lalov I, D'ascenzi F, Pelliccia A, Natali B, Cameli M, Alvino F, Zorzi A, Corrado D, Bonifazi M, Mondillo S, Rees E, Rakebrandt F, Rees D, Halcox J, Fraser A, O'driscoll J, Lau N, Perez-Lopez M, Sharma R, Lichodziejewska B, Goliszek S, Kurnicka K, Kostrubiec M, Dzikowska Diduch O, Krupa M, Grudzka K, Ciurzynski M, Palczewski P, Pruszczyk P, Gheorghe L, Castillo Ortiz J, Del Pozo Contreras R, Calle Perez G, Sancho Jaldon M, Cabeza Lainez P, Vazquez Garcia R, Fernandez Garcia P, Chueca Gonzalez E, Arana Granados R, Zhao X, Xu X, Bai Y, Qin Y, Leren I, Hasselberg N, Saberniak J, Leren T, Edvardsen T, Haugaa K, Daraban AM, Sutherland G, Claus P, Werner B, Gewillig M, Voigt J, Santoro A, Ierano P, De Stefano F, Esposito R, De Palma D, Ippolito R, Tufano A, Galderisi M, Costa R, Fischer C, Rodrigues A, Monaco C, Lira Filho E, Vieira M, Cordovil A, Oliveira E, Mohry S, Gaudron P, Niemann M, Herrmann S, Strotmann J, Beer M, Hu K, Bijnens B, Ertl G, Weidemann F, Baktir A, Sarli B, Cicek M, Karakas M, Saglam H, Arinc H, Akil M, Kaya H, Ertas F, Bilik M, Yildiz A, Oylumlu M, Acet H, Aydin M, Yuksel M, Alan S, O'driscoll J, Gravina A, Di Fino S, Thompson M, Karthigelasingham A, Ray K, Sharma R, De Chiara B, Russo C, Alloni M, Belli O, Spano' F, Botta L, Palmieri B, Martinelli L, Giannattasio C, Moreo A, Mateescu A, La Carrubba S, Vriz O, Di Bello V, Carerj S, Zito C, Ginghina C, Popescu B, Nicolosi G, Antonini-Canterin F, Malev E, Omelchenko M, Vasina L, Luneva E, Zemtsovsky E, Cikes M, Velagic V, Gasparovic H, Kopjar T, Colak Z, Hlupic L, Biocina B, Milicic D, Tomaszewski A, Kutarski A, Poterala M, Tomaszewski M, Brzozowski W, Kijima Y, Akagi T, Nakagawa K, Ikeda M, Watanabe N, Ueoka A, Takaya Y, Oe H, Toh N, Ito H, Bochard Villanueva B, Paya-Serrano R, Fabregat-Andres O, Garcia-Gonzalez P, Perez-Bosca J, Cubillos-Arango A, Chacon-Hernandez N, Higueras-Ortega L, De La Espriella-Juan R, Ridocci-Soriano F, Noack T, Mukherjee C, Ionasec R, Voigt I, Kiefer P, Hoebartner M, Misfeld M, Mohr FW, Seeburger J, Daraban AM, Baltussen L, Amzulescu M, Bogaert J, Jassens S, Voigt J, Duchateau N, Giraldeau G, Gabrielli L, Penela D, Evertz R, Mont L, Brugada J, Berruezo A, Bijnens B, Sitges M, Yoshikawa H, Suzuki M, Hashimoto G, Kusunose Y, Otsuka T, Nakamura M, Sugi K, Ruiz Ortiz M, Mesa D, Romo E, Delgado M, Seoane T, Martin M, Carrasco F, Lopez Granados A, Arizon J, Suarez De Lezo J, Magalhaes A, Cortez-Dias N, Silva D, Menezes M, Saraiva M, Santos L, Costa A, Costa L, Nunes Diogo A, Fiuza M, Ren B, De Groot-De Laat L, Mcghie J, Vletter W, Geleijnse M, Toda H, Oe H, Osawa K, Miyoshi T, Ugawa S, Toh N, Nakamura K, Kohno K, Morita H, Ito H, El Ghannudi S, Germain P, Samet H, Jeung M, Roy C, Gangi A, Orii M, Hirata K, Yamano T, Tanimoto T, Ino Y, Yamaguchi T, Kubo T, Imanishi T, Akasaka T, Sunbul M, Kivrak T, Oguz M, Ozguven S, Gungor S, Dede F, Turoglu H, Yildizeli B, Mutlu B, Mihaila S, Muraru D, Piasentini E, Peluso D, Cucchini U, Casablanca S, Naso P, Iliceto S, Vinereanu D, Badano L, Rodriguez Munoz D, Moya Mur J, Becker Filho D, Gonzalez A, Casas Rojo E, Garcia Martin A, Recio Vazquez M, Rincon L, Fernandez Golfin C, Zamorano Gomez J, Ledakowicz-Polak A, Polak L, Zielinska M, Kamiyama T, Nakade T, Nakamura Y, Ando T, Kirimura M, Inoue Y, Sasaki O, Nishioka T, Farouk H, Sakr B, Elchilali K, Said K, Sorour K, Salah H, Mahmoud G, Casanova Rodriguez C, Cano Carrizal R, Iglesias Del Valle D, Martin Penato Molina A, Garcia Garcia A, Prieto Moriche E, Alvarez Rubio J, De Juan Bagua J, Tejero Romero C, Plaza Perez I, Korlou P, Stefanidis A, Mpikakis N, Ikonomidis I, Anastasiadis S, Komninos K, Nikoloudi P, Margos P, Pentzeridis P. Poster session Thursday 12 December - AM: 12/12/2013, 08:30-12:30 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Jiang S, Park S, Yoon Y, Lee JH, Wu WM, Phuoc Dan N, Sadowsky MJ, Hur HG. Methanogenesis facilitated by geobiochemical iron cycle in a novel syntrophic methanogenic microbial community. Environ Sci Technol 2013; 47:10078-10084. [PMID: 23919295 DOI: 10.1021/es402412c] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Production and emission of methane have been increasing concerns due to its significant effect on global climate change and the carbon cycle. Here we report facilitated methane production from acetate by a novel community of methanogens and acetate oxidizing bacteria in the presence of poorly crystalline akaganeite slurry. Comparative analyses showed that methanogenesis was significantly enhanced by added akaganeite and acetate was mostly stoichiometrically converted to methane. Electrons produced from anaerobic acetate oxidation are transferred to akaganeite nanorods that likely prompt the transformation into goethite nanofibers through a series of biogeochemical processes of soluble Fe(II) readsorption and Fe(III) reprecipitation. The methanogenic archaea likely harness the biotransformation of akaganeite to goethite by the Fe(III)-Fe(II) cycle to facilitate production of methane. These results provide new insights into biogeochemistry of iron minerals and methanogenesis in the environment, as well as the development of sustainable methods for microbial methane production.
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Affiliation(s)
- Shenghua Jiang
- School of Environmental Science and Engineering, Gwangju Institute of Science and Technology , Gwangju 500-712, Republic of Korea
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Yoon Y, Lee DH, Kang DW, Kwon SU, Suh DC, Bang OY, Kim JS. Stroke recurrence patterns are predicted by the subtypes and mechanisms of the past, non-cardiogenic stroke. Eur J Neurol 2013; 20:928-34. [PMID: 23398300 DOI: 10.1111/ene.12101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2012] [Accepted: 12/12/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE The association between past stroke subtypes and recurrent stroke subtypes in non-cardiogenic stroke remains unknown. METHODS Patients with ischaemic stroke who had a past history of large-artery disease (LAD) or small-artery disease (SAD) subtypes were assessed. LAD was subdivided into intracranial atherosclerosis (ICAS) and extracranial atherosclerosis (ECAS). LAD stroke mechanisms were categorized as artery-to-artery embolism, in situ thrombotic occlusion and local branch occlusion, while SAD was subdivided into lacunar infarction (LI) and branch atheromatous disease (BAD) on the basis of magnetic resonance imaging findings. The relationship between past and current strokes was analyzed. RESULTS Among the 202 patients enrolled, the LAD group (n = 111) had 64 and 47 patients with ICAS and ECAS, and the SAD group (n = 91) had 63 and 28 patients with LI and BAD, respectively, at the time of past stroke. Patients with LAD developed LAD-associated strokes most often (n = 99, 89.2%), and patients with SAD developed SAD most often (n = 69, 75.8%; P < 0.001). Patients with ICAS were more likely to develop ICAS later (n = 46, 79.3%), whereas those with ECAS developed ECAS more often (n = 31, 75.6%; P < 0.001). Patients with ICAS presenting with artery-to-artery embolism more often developed artery-to-artery embolism later (n = 26, 72.2%), whereas those with local branch occlusion developed recurrent local branch occlusion most often (n = 10, 66.7%, P = 0.005). In the SAD group, patients with BAD developed LAD more frequently than the LI group (n = 11, 39.3% vs. n = 9, 14.3%, P = 0.022). CONCLUSIONS The subtypes and mechanisms of recurrent stroke are significantly influenced by those of the past stroke.
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Affiliation(s)
- Y Yoon
- Department of Neurology, University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Korea
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Badagliacca R, Reali M, Vizza C, Poscia R, Pezzuto B, Gambardella C, Papa S, Mezzapesa M, Nocioni M, Fedele F, Freed B, Bhave N, Tsang W, Gomberg-Maitland M, Mor-Avi V, Patel A, Lang RM, Liel-Cohen N, Yaacobi M, Guterman H, Jurzak P, Ternacle J, Gallet R, Bensaid A, Kloeckner M, Monin JL, Gueret P, Dubois-Rande JL, Lim P, Otsuka T, Suzuki M, Yoshikawa H, Hashimoto G, Ishikawa Y, Osaki T, Masai H, Ono T, Yamamoto M, Sugi K, Satendra M, Sargento L, Sousa C, Arsenio A, Lousada N, Palma Reis R, Wang S, Lam Y, Liu M, Fang F, Shang Q, Luo X, Wang J, Sun J, Sanderson J, Yu C, De Marchi S, Hopp E, Urheim S, Hervold A, Murbrach K, Massey R, Remme E, Hol P, Aakhus S, Bouzas Mosquera A, Peteiro J, Broullon F, Garcia NA, Rodriguez Garrido J, Martinez Ruiz D, Yanez Wonenburger J, Bouzas Zubeldia B, Fabregas Casal R, Castro Beiras A, Le Tourneau T, Sportouch C, Foucher C, Delasalle B, Rosso J, Neuder Y, Trochu J, Roncalli J, Lemarchand P, Manrique A, Sharif D, Sharif-Rasslan A, Shahla C, Khalil A, Rosenschein U, Monti L, Tramarin M, Calcagnino M, Lisignoli V, Nardi B, Balzarini L, Khalatbari A, Mills J, Chenzbraun A, Theron A, Morera P, Resseguier N, Thuny F, Riberi A, Giorgi R, Collart F, Habib G, Avierinos J, Liu D, Hu K, Niemann M, Herrmann S, Gaudron P, Voelker W, Ertl G, Bijnens B, Weidemann F, Lenders GD, Bosmans JM, Van Herck PL, Rodrigus IE, Claeys MJ, Vrints CJ, Paelinck BP, Veronesi F, Fusini L, Tamborini G, Gripari P, Maffessanti F, Mirea O, Alamanni F, Pepi M, Caiani E, Frikha Z, Zairi I, Saib W, Fennira S, Ben Moussa F, Kammoun S, Mrabet K, Ben Yaala A, Said L, Ghannouchi M, Carlomagno G, Ascione L, Sordelli C, Iengo R, Severino S, D'andrea A, Calabro' R, Caso P, Mizia M, Mizia-Stec K, Sikora-Puz A, Gieszczyk-Strozik K, Chmiel A, Haberka M, Hudziak D, Jasinski M, Gasior Z, Wos S, Biaggi P, Felix C, Gruner C, Hohlfeld S, Herzog B, Gaemperli O, Gruenenfelder J, Corti R, Tanner F, Bettex D, Kovalova S, Necas J, Dominguez Rodriguez F, Monivas V, Mingo S, Garcia-Lunar I, Garcia-Pavia P, Gonzalez-Mirelis J, Zegri I, Cavero M, Jeon HK, Lee D, Youn H, Shin H, Yoon J, Chung H, Choi E, Kim J, Min P, Lee B, Yoon Y, Hong B, Kwon H, Rim S, Petronilli V, Cimino S, De Luca L, Cicogna F, Arcari L, Francone M, Iacoboni C, Agati L, Halmai L, Atkinson P, Kardos A, Bogle R, Meimoun P, Flahaut G, Charles V, Villain Y, Clerc J, Germain A, Elmkies F, Zemir H, Luycx-Bore A, Kim K, Song J, Jeong H, Yoon H, Ahn Y, Jeong M, Cho J, Park J, Kang J, Tolba OA, El-Shanshory MR, El-Shitany NAEA, El-Hawary ES, Elkilany GN, Tolba OA, El-Shanshory MR, El-Shitany AEA, El-Hawary EES, Nagib Elkilany GE, Costanzo L, Buccheri S, Monte IP, Curatolo G, Crapanzano P, Di Pino L, Rodolico M, Blundo A, Leggio S, Tamburino C, Rees E, Hocking R, Dunstan F, Lewis M, Tunstall K, Rees DA, Halcox JP, Fraser AG, Rodrigues A, Guimaraes L, Guimaraes J, Monaco C, Cordovil A, Lira E, Vieira M, Fischer C, Nomura C, Morhy S, Bruno R, Cogo A, Sharma R, Bartesaghi M, Pomidori L, Basnyat B, Taddei S, Picano E, Sicari R, Pratali L, Satendra M, Sargento L, Sousa C, Lousada N, Palma Reis R, Zakhama L, Sioua S, Naffati S, Marouen A, Boussabah E, Kadour R, Thameur M, Benyoussef S, Vanoli D, Wiklund U, Henein M, Naslund U, Lindqvist P, Palinsky M, Petrovicova J, Pirscova M, Korpi K, Blafield H, Suomi H, Linden P, Valtonen M, Jarvinen V, Laine M, Loimaala A, Kaldararova M, Kantorova A, Vrsanska V, Tittel P, Hraska V, Masura J, Simkova I, Attenhofer Jost C, Zimmermann C, Greutmann M, Dave H, Valsangiacomo Buechel E, Pretre R, Mueller C, Seifert B, Kretschmar O, Weber R, Carro A, Teixido G, Rodriguez-Palomares J, Gutierrez L, Maldonado G, Paucca E, Gonzalez-Alujas T, Evangelista A, Al Akhfash A, Al Mesned D, Maan Hasson D, Al Harbi B M, Cruz C, Pinho T, Lebreiro A, Silva Cardoso J, Julia Maciel M, Kalimanovska-Ostric D, Nastasovic T, Deljanin-Ilic M, Milakovic B, Dostanic M, Stosic M, Lam YY, Fang F, Yu C, Bobbo M, Leonelli V, Piazza R, Leiballi E, Pecoraro R, Cinello M, Mimo R, Cervesato E, Nicolosi GL, Cruz C, Pinho T, Lebreiro A, Silva Cardoso J, Julia Maciel M, Moral Torres S, Evangelista A, Gonzalez-Alujas M, Rodriguez-Palomares J, Teixido G, Gutierrez L, Cuellar H, Carro A, Maldonado G, Garcia-Dorado D, Kocabay G, Dal Bianco L, Muraru D, Peluso D, Segafredo B, Iliceto S, Badano L, Schiano Lomoriello V, Santoro A, Esposito R, Ippolito R, De Palma D, Schiattarella P, Muscariello R, Galderisi M, Teixido Tura G, Redheuil A, Rodriguez-Palomares J, Gutierrez L, Sanchez V, Forteza A, Lima J, Garcia-Dorado D, Evangelista A, Moral Torres S, Evangelista A, Gonzalez-Alujas M, Rodriguez-Palomares J, Teixido G, Gutierrez L, Cuellar H, Carro A, Maldonado G, Garcia-Dorado D, Mihalcea D, Florescu M, Suran B, Enescu O, Mincu R, Patrascu N, Serbanoiu I, Margulescu A, Vinereanu D, Teixido Tura G, Rodriguez-Palomares J, Gutierrez L, Gonzalez-Alujas T, Carro A, Thomas M, Garcia-Dorado D, Evangelista A, Tosello F, Milan A, Magnino C, Leone D, Chiarlo M, Bruno G, Losano I, Burrello J, Fulcheri C, Veglio F, Styczynski G, Szmigielski CA, Kaczynska A, Kuch-Wocial A, Jansen R, Kracht P, Kluin J, Tietge W, Cramer M, Chamuleau S, Zito C, Tripepi S, Cusma-Piccione M, Di Bella G, Mohammed M, Oreto L, Manganaro R, D'angelo M, Pizzino F, Carerj S, Arapi S, Tsounis D, Matzraki V, Kaplanis I, Perpinia A, Varoudi M, Mpitsios G, Lazaros G, Karavidas A, Pyrgakis V, Mornos C, Ionac A, Cozma D, Mornos A, Dragulescu D, Petrescu L, Pescariu S, Lupinek P, Sramko M, Kubanek M, Kautznerova D, Tintera J, Lanska V, Kadrabulatova S, Pavlukova E, Tarasov D, Karpov R, Sveric K, Forkmann M, Richter U, Wunderlich C, Strasser R, Grapsa J, Dawson D, Zimbarra Cabrita I, Punjabi P, Nihoyannopoulos P, Kovacs A, Apor A, Nagy A, Vago H, Toth A, Becker D, Merkely B, Ranjbar S, Karvandi M, Hassantash S, Yoshikawa H, Suzuki M, Kusunose Y, Hashimoto G, Otsuka T, Nakamura M, Sugi K, De Knegt M, Biering-Sorensen T, Sogaard P, Sivertsen J, Jensen J, Mogelvang R, Montserrat S, Gabrielli L, Borras R, Bijnens B, Castella M, Berruezo A, Mont L, Brugada J, Sitges M, Tarr A, Stoebe S, Pfeiffer D, Hagendorff A, Ternacle J, Jurzak P, Gallet R, Champagne S, Teiger E, Monin JL, Gueret P, Dubois-Rande JL, Lim P, Monney P, Jeanrenaud X, Monivas Palomero V, Mingo Santos S, Garcia Lunar I, Beltran Correas P, Gonzalez Lopez E, Sanchez Garcia M, Gonzalez Mirelis J, Cavero Gibanel M, Gomez Bueno M, Segovia Cubero J, Haarman M, Van Den Bosch A, Domburg R, Mcghie J, Roos-Hesselink J, Geleijnse M, Yanikoglu A, Altekin E, Kucuk M, Karakas S, Ozel D, Yilmaz H, Demir I, Tsuruta H, Iwanaga S, Sato T, Miyoshi S, Nishiyama N, Aizawa Y, Tanimoto K, Murata M, Takatsuki S, Fukuda K, Carrilho-Ferreira P, Cortez-Dias N, Silva D, Jorge C, Goncalves S, Santos I, Sargento L, Marques P, Carpinteiro L, Sousa J, Schubert U, Kockova R, Tintera J, Kautznerova D, Cerna D, Sedlacek K, Kryze L, Sikula V, Segetova M, Kautzner J, Iwaki T, Dores H, Goncalves P, Sousa P, Carvalho M, Marques H, Machado F, Gaspar A, Aleixo A, Carmo M, Roquette J, Lagopati N, Sotiropoulos M, Baka I, Ploussi A, Lyra Georgosopoulou M, Miglioranza M, Gargani L, Sant'anna R, Rover M, Mantovani A, Kalil R, Sicari R, Picano E, Leiria T, Minarik T, Taborsky M, Fedorco M, Novak P, Ledakowicz-Polak A, Polak L, Zielinska M, Zhong L, Chin C, Lau Y, Sim L, Chua T, Tan B, Tan R. Poster session: Dobutamine stress echo. Eur Heart J Cardiovasc Imaging 2012. [DOI: 10.1093/ehjci/jes257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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