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Shang K, Kim JH, Park JY, Choi YR, Kim SW, Cha SY, Jang HK, Wei B, Kang M. Comparative Studies of Antimicrobial Resistance in Escherichia coli, Salmonella, and Campylobacter Isolates from Broiler Chickens with and without Use of Enrofloxacin. Foods 2023; 12:foods12112239. [PMID: 37297483 DOI: 10.3390/foods12112239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
This study investigated the effect of enrofloxacin (ENR) administration on the prevalence and antimicrobial resistance of E. coli, Salmonella, and Campylobacter isolated from broiler chickens under field conditions. The isolation rate of Salmonella was significantly lower (p < 0.05) on farms that administered ENR (6.4%) than on farms that did not (11.6%). The Campylobacter isolation rate was significantly higher (p < 0.05) in farms that administered ENR (6.7%) than in farms that did not (3.3%). The ratio of resistance to ENR was significantly higher (p < 0.05) in E. coli isolates from farms that used ENR (88.1%) than farms that did not (78.0%). The respective ratio of resistance to ampicillin (40.5% vs. 17.9%), chloramphenicol (38.0% vs. 12.5%), tetracycline (63.3% vs. 23.2%), and trimethoprim/sulfamethoxazole (48.1% vs. 28.6%) and the ratio of intermediate resistance to ENR (67.1% vs. 48.2%) were significantly higher (p < 0.05) in Salmonella isolates from the farms that used ENR than farms that did not. In conclusion, the use of ENR at broiler farms was an important factor in decreasing the prevalence of Salmonella but not Campylobacter and caused ENR resistance among E. coli and Salmonella but not Campylobacter. Exposure to ENR could have a co-selective effect on antimicrobial resistance in enteric bacteria in the field.
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Affiliation(s)
- Ke Shang
- College of Animal Science and Technology, Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, Henan University of Science and Technology, Luoyang 471000, China
| | - Ji-Hyuk Kim
- Department of Animal Resources Science, Kongju National University, Yesan 32439, Republic of Korea
| | - Jong-Yeol Park
- Department of Avian Diseases, College of Veterinary Medicine and Center for Avian Disease, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Yu-Ri Choi
- Department of Avian Diseases, College of Veterinary Medicine and Center for Avian Disease, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Sang-Won Kim
- Department of Avian Diseases, College of Veterinary Medicine and Center for Avian Disease, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Se-Yeoun Cha
- Department of Avian Diseases, College of Veterinary Medicine and Center for Avian Disease, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Hyung-Kwan Jang
- Department of Avian Diseases, College of Veterinary Medicine and Center for Avian Disease, Jeonbuk National University, Iksan 54596, Republic of Korea
- Bio Disease Control (BIOD) Co., Ltd., Iksan 54596, Republic of Korea
| | - Bai Wei
- Department of Avian Diseases, College of Veterinary Medicine and Center for Avian Disease, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Min Kang
- Department of Avian Diseases, College of Veterinary Medicine and Center for Avian Disease, Jeonbuk National University, Iksan 54596, Republic of Korea
- Bio Disease Control (BIOD) Co., Ltd., Iksan 54596, Republic of Korea
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Vancomycin-Resistant Enterococcus faecium and the emergence of new Sequence Types associated with Hospital Infection. Res Microbiol 2023; 174:104046. [PMID: 36858192 DOI: 10.1016/j.resmic.2023.104046] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 02/16/2023] [Accepted: 02/20/2023] [Indexed: 03/02/2023]
Abstract
Enterococcus faecium is a major cause of vancomycin-resistant enterococcal (VRE) infection. New variants of the pathogen have emerged and become dominant in healthcare settings. Two such examples, vanB ST796 and vanA ST1421 sequence types, originally arose in Australia and proceeded to cause VRE outbreaks in other countries. Of concern is the detection of a vancomycin variable enterococcal (VVE) variant of ST1421 in Europe that exhibits a vancomycin-susceptible phenotype but which can revert to resistant in the presence of vancomycin. The recent application of genome sequencing for increasing our understanding of the evolution and spread of VRE is also explored here.
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Zhou G, Chen J, Wu C, Jiang P, Wang Y, Zhang Y, Jiang Y, Li X. Deciphering the Protein, Modular Connections and Precision Medicine for Heart Failure With Preserved Ejection Fraction and Hypertension Based on TMT Quantitative Proteomics and Molecular Docking. Front Physiol 2021; 12:607089. [PMID: 34721049 PMCID: PMC8552070 DOI: 10.3389/fphys.2021.607089] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 09/23/2021] [Indexed: 12/16/2022] Open
Abstract
Background: Exploring the potential biological relationships between heart failure with preserved ejection fraction (HFpEF) and concomitant diseases has been the focus of many studies for the establishment of personalized therapies. Hypertension (HTN) is the most common concomitant disease in HFpEF patients, but the functional connections between HFpEF and HTN are still not fully understood and effective treatment strategies are still lacking. Methods: In this study, tandem mass tag (TMT) quantitative proteomics was used to identify disease-related proteins and construct disease-related networks. Furthermore, functional enrichment analysis of overlapping network modules was used to determine the functional similarities between HFpEF and HTN. Molecular docking and module analyses were combined to identify therapeutic targets for HFpEF and HTN. Results: Seven common differentially expressed proteins (co-DEPs) and eight overlapping modules were identified in HFpEF and HTN. The common biological processes between HFpEF and HTN were mainly related to energy metabolism. Myocardial contraction, energy metabolism, apoptosis, oxidative stress, immune response, and cardiac hypertrophy were all closely associated with HFpEF and HTN. Epinephrine, sulfadimethoxine, chloroform, and prednisolone acetate were best matched with the co-DEPs by molecular docking analyses. Conclusion: Myocardial contraction, energy metabolism, apoptosis, oxidative stress, immune response, and cardiac hypertrophy were the main functional connections between HFpEF and HTN. Epinephrine, sulfadimethoxine, chloroform, and prednisolone acetate could potentially be effective for the treatment of HTN and HFpEF.
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Affiliation(s)
- Guofeng Zhou
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jiye Chen
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Chuanhong Wu
- The Biomedical Sciences Institute of Qingdao University (Qingdao Branch of SJTU Bio-X Institutes), Qingdao University, Qingdao, China
| | - Ping Jiang
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yongcheng Wang
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yongjian Zhang
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuehua Jiang
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xiao Li
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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Zheng M, Mao P, Tian X, Meng L. Effects of grazing mixed-grass pastures on growth performance, immune responses, and intestinal microbiota in free-range Beijing-you chickens. Poult Sci 2020; 100:1049-1058. [PMID: 33518063 PMCID: PMC7858154 DOI: 10.1016/j.psj.2020.11.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/05/2020] [Accepted: 11/09/2020] [Indexed: 11/28/2022] Open
Abstract
There is an increasing interest in free-range poultry with the increasing focus on food safety and animal welfare. This study was conducted to evaluate the effects of grazing mixed-grass pastures on growth performance, immune responses, and intestinal microbiota in free-range laying chickens. Ten-week-old female Beijing-you chickens were blocked by the BW and randomly assigned to 3 free-range systems in poplar plantations for 120 d: forage-removed paddocks with a high stocking density of 5 m2/hen (control [CK]); mixed-grass pastures with a low stocking density of 6 m2/hen ;or mixed-grass pastures with a high stocking density of 5 m2/hen. Intestinal microbial community analysis was performed by 16S rRNA gene sequencing using Illumina MiSeq. The results revealed that no differences (P > 0.05) were found between the 3 raising systems for the BW and ADG. Chickens grazing mixed-grass pastures exhibited decreased (P > 0.05) mortality and improved immune responses as evidenced by increased T-lymphocyte proliferation (P > 0.05) and immunoglobulin A (P > 0.05) and immunoglobulin M concentrations (P < 0.05) compared with those raised in forage-removed paddocks. Metagenomic analysis indicated that grazing mixed-grass pastures regulated the intestinal microbiota by increasing the prevalence of beneficial bacteria, such as Lactobacillus, Bacteroides, and Faecalibacterium, and reducing potentially pathogenic bacteria population, such as the Rikenellaceae_RC9_gut_group compared with the CK. Therefore, this study indicated that grazing mixed-grass pastures could positively influence intestinal microbiota that may contribute to the overall growth and immunity of free-range chickens and that a low stocking density of 6 m2/hen was optimal to Beijing-you chickens grazing mixed-grass pastures.
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Affiliation(s)
- Mingli Zheng
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Peichun Mao
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Xiaoxia Tian
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Lin Meng
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China.
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Zhang Z, Zhang BS, Li KL, An Y, Liu C, Gou XY, Liang YM. Palladium-Catalyzed Amination/Dearomatization Reaction of Indoles and Benzofurans. J Org Chem 2020; 85:7817-7839. [PMID: 32441518 DOI: 10.1021/acs.joc.0c00475] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This report describes a palladium-catalyzed dearomatization and amination tandem reaction of 2,3-disubstituted indoles and benzofurans via the Catellani strategy. This reaction provides a new method for the construction of amino-substituted indoline-fused cyclic and benzofuran spiro compounds in good yields. The reaction has broad functional group compatibility and substrate scope.
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Affiliation(s)
- Zhe Zhang
- State key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Bo-Sheng Zhang
- State key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Kai-Li Li
- Lanzhou University Second Clinical Medical College, Lanzhou 730000, China
| | - Yang An
- State key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Ce Liu
- State key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xue-Ya Gou
- State key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yong-Min Liang
- State key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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Lian DS, Zeng HS. Capillary Electrophoresis Based on Nucleic Acid Detection as Used in Food Analysis. Compr Rev Food Sci Food Saf 2017; 16:1281-1295. [DOI: 10.1111/1541-4337.12297] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/14/2017] [Accepted: 07/19/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Dong-Sheng Lian
- Guangzhou Women and Children's Medical Center of Guangzhou Medical University; NO. 9 at Jinsui Rd., Tianhe District Guangzhou Guangdong China
| | - Hua-Song Zeng
- Guangzhou Women and Children's Medical Center of Guangzhou Medical University; NO. 9 at Jinsui Rd., Tianhe District Guangzhou Guangdong China
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Randall L, Ridley A, Lemma F, Hale C, Davies R. In vitro investigations into the use of antimicrobials in combination to maintain efficacy of fluoroquinolones in poultry. Res Vet Sci 2016; 108:47-53. [PMID: 27663369 DOI: 10.1016/j.rvsc.2016.07.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 07/07/2016] [Accepted: 07/28/2016] [Indexed: 01/08/2023]
Abstract
The aim of this study was to determine if apramycin, colistin or lincomycin-spectinomycin, in combination with enrofloxacin, was able prevent the emergence of mutants with reduced susceptibility to fluoroquinolone antibiotics in vitro. MICs were determined for enrofloxacin alone and in combination for panels of Campylobacter (n=37), Escherichia coli (n=52) and Salmonella (n=52) isolates. MIC results suggested that apramycin, colistin and lincomycin-spectinomycin worked in an additive/indifferent way when each was combined with enrofloxacin. Apramycin was considered the most promising antibiotic for combination-therapy in conjunction with enrofloxacin, and further evaluations (MBCs, MPCs and time-kill-curves) were performed for this combination for selected isolates. Results suggest combination-therapy of enrofloxacin with apramycin increases the efficacy, as well as decreasing the emergence and survival of bacteria with mutational resistance to fluoroquinolone antibiotics. Such combination-therapy, minimising the development of mutational resistance, may have relevance for Campylobacter, E. coli and Salmonella infections in poultry.
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Affiliation(s)
- Luke Randall
- Animal and Plant Health Agency (Weybridge), Woodham Lane, New Haw, Addlestone, Surrey, KT15 3NB, UK.
| | - Anne Ridley
- Animal and Plant Health Agency (Weybridge), Woodham Lane, New Haw, Addlestone, Surrey, KT15 3NB, UK
| | - Fabrizio Lemma
- Animal and Plant Health Agency (Weybridge), Woodham Lane, New Haw, Addlestone, Surrey, KT15 3NB, UK
| | - Carol Hale
- Animal and Plant Health Agency (Weybridge), Woodham Lane, New Haw, Addlestone, Surrey, KT15 3NB, UK
| | - Rob Davies
- Animal and Plant Health Agency (Weybridge), Woodham Lane, New Haw, Addlestone, Surrey, KT15 3NB, UK
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Evaluation of Antimicrobial Susceptibility Among Enterococcus Species by E-Test Method at Khatam-ol-Anbia Hospital During 2013 – 2014. ARCHIVES OF CLINICAL INFECTIOUS DISEASES 2016. [DOI: 10.5812/archcid.29526] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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