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Matzembacker B, Fantinel DDS, Rodrigues CM, da Silva SP, Marin MHDB, Rosa DS, da Costa MM, Silveira S, Girardini LK. Antimicrobial efficiency of bromhexine hydrochloride against endometritis-causing Escherichia coli and Trueperella pyogenes in bovines. Braz J Microbiol 2024; 55:2013-2024. [PMID: 38639845 PMCID: PMC11153440 DOI: 10.1007/s42770-024-01320-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 03/27/2024] [Indexed: 04/20/2024] Open
Abstract
In this study, the main agents associated with endometritis in cows in the state of Santa Catarina, Brazil, were identified and the resistance profile and virulence mechanisms of the bacterial isolates were evaluated. Isolates of Escherichia coli and Trueperella pyogenes were tested for their biofilm forming ability and the antimicrobial action of bromhexine hydrochloride in combination with other antimicrobials. A total of 37 uterine lavage samples were collected from cows with endometritis. Of the 55 bacteria isolated, 25.4% were identified as T. pyogenes and 16.3% as E. coli. The bacterial isolates showed greater resistance to sulfamethoxazole + trimethoprim (58.2%) and tetracycline (56.3%). Among the species, E. coli showed the highest resistance rates, with 100% of isolates showing resistance to amoxicillin, streptomycin, and gentamicin. The results of the minimum inhibitory concentration for the T. pyogenes isolates showed that 91.6% of the isolates were resistant to enrofloxacin and tetracycline, and 75% were resistant to ceftiofur and sulfamethoxazole + trimethoprim. All E. coli and T. pyogenes isolates showed biofilm forming ability. The plo, fimA, and nanH genes were identified in 100% of T. pyogenes isolates. In parallel, 100% of E. coli isolates had the fimH gene, and 11.1% had the csgD gene. Bromhexine hydrochloride showed antimicrobial activity against 100% of E. coli isolates and 66.6% of T. pyogenes isolates. Furthermore, when associated with antimicrobials, bromhexine hydrochloride has a synergistic and additive effect, proving to be an option in the treatment of endometritis in cows and an alternative for reducing the use of antimicrobials.
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Affiliation(s)
- Bruna Matzembacker
- Laboratório de diagnóstico de Doenças infectocontagiosas, Universidade do Oeste de Santa Catarina, Xanxerê, 89820-000, Santa Catarina, Brasil
| | | | | | - Samara Pereira da Silva
- Laboratório de diagnóstico de Doenças infectocontagiosas, Universidade do Oeste de Santa Catarina, Xanxerê, 89820-000, Santa Catarina, Brasil
| | - Matheus Henrique Dal Bó Marin
- Laboratório de diagnóstico de Doenças infectocontagiosas, Universidade do Oeste de Santa Catarina, Xanxerê, 89820-000, Santa Catarina, Brasil
| | - Danillo Sales Rosa
- Universidade Federal Rural de Pernambuco - UFRPE, Recife, 52171-030, Pernambuco, Brasil
| | - Mateus Matiuzzi da Costa
- Universidade Federal do Vale do São Francisco - UNIVASF, Petrolina, 56300-000, Pernambuco, Brasil.
| | - Simone Silveira
- Laboratório de diagnóstico de Doenças infectocontagiosas, Universidade do Oeste de Santa Catarina, Xanxerê, 89820-000, Santa Catarina, Brasil
| | - Lilian Kolling Girardini
- Laboratório de diagnóstico de Doenças infectocontagiosas, Universidade do Oeste de Santa Catarina, Xanxerê, 89820-000, Santa Catarina, Brasil
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Deb R, Chaudhary P, De S. CRISPR/cas9 cassette targeting Escherichia coli blaCTX-M specific gene of mastitis cow milk origin can alter the antibiotic resistant phenotype for cefotaxime. Anim Biotechnol 2023; 34:1849-1854. [PMID: 35357269 DOI: 10.1080/10495398.2022.2053695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
CTX-M beta-lactamases are one of the most important extended spectrum beta-lactamase (ESBL) resistance enzymes found in E. coli. In the present study, 59% of E. coli isolates from mastitis cow milk were reported to be positive for ESBL types. The prevalence of beta-lactam (β-lactam) antibiotic resistance was reported to be 84%, 72.7%, 52.27%, 50%, and 45.4% for cefotaxime, cefepime, cefuroxime, oxacillin, and cephalexine, respectively. The blaCTX-M gene was found in 65% (n = 17) of the E. coli isolates when they were genotyped. Further, the use of a CRISPR/cas9 cassette to target the E. coli blaCTX-M gene revealed changes in antibiotic phenotypes for cefotaxime.
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Affiliation(s)
- Rajib Deb
- Animal Genomics Laboratory, Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, India
- ICAR-National Research Center on Pig, Guwahati, Assam, India
| | - Parul Chaudhary
- Animal Genomics Laboratory, Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, India
| | - Sachinandan De
- Animal Genomics Laboratory, Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, India
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Dey TK, Lindahl JF, Lundkvist Å, Grace D, Deka RP, Shome R, Bandyopadhyay S, Goyal NK, Sharma G, Shome BR. Analyses of Extended-Spectrum-β-Lactamase, Metallo-β-Lactamase, and AmpC-β-Lactamase Producing Enterobacteriaceae from the Dairy Value Chain in India. Antibiotics (Basel) 2023; 12:1449. [PMID: 37760745 PMCID: PMC10650101 DOI: 10.3390/antibiotics12091449] [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: 08/09/2023] [Revised: 09/03/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
The consumption of milk contaminated with antibiotic-resistant bacteria poses a significant health threat to humans. This study aimed to investigate the prevalence of Enterobacteriaceae producing β-lactamases (ESBL, MBL, and AmpC) in cow and buffalo milk samples from two Indian states, Haryana and Assam. A total of 401 milk samples were collected from dairy farmers and vendors in the specified districts. Microbiological assays, antibiotic susceptibility testing, and PCR-based genotyping were employed to analyze 421 Gram-negative bacterial isolates. The overall prevalence of β-lactamase genes was 10% (confidence interval (CI) (7-13)), with higher rates in Haryana (13%, CI (9-19)) compared to Assam (7%, CI (4-11)). The identified β-lactamase genes in isolates were blaCMY, blaMOX, blaFOX, blaEBC, and blaDHA, associated with AmpC production. Additionally, blaCTX-M1, blaSHV, and blaTEM were detected as ESBL producers, while blaVIM, blaIMP, blaSPM, blaSIM, and blaGIM were identified as MBL producers. Notably, Shigella spp. were the dominant β-lactamase producers among identified Enterobacteriaceae. This study highlights the presence of various prevalent β-lactamase genes in milk isolates, indicating the potential risk of antimicrobial-resistant bacteria in dairy products. The presence of β-lactam resistance raises concern as this could restrict antibiotic options for treatment. The discordance between genotypic and phenotypic methods emphasizes the necessity for comprehensive approaches that integrate both techniques to accurately assess antibiotic resistance. Urgent collaborative action incorporating rational and regulated use of antibiotics across the dairy value chain is required to address the global challenge of β-lactam resistance.
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Affiliation(s)
- Tushar Kumar Dey
- Department of Biosciences, International Livestock Research Institute, Nairobi 00100, Kenya
- Zoonosis Science Center, Department of Medical Biochemistry and Microbiology, Uppsala University, 75123 Uppsala, Sweden
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru 560064, India
| | - Johanna Frida Lindahl
- Department of Biosciences, International Livestock Research Institute, Nairobi 00100, Kenya
- Zoonosis Science Center, Department of Medical Biochemistry and Microbiology, Uppsala University, 75123 Uppsala, Sweden
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
| | - Åke Lundkvist
- Zoonosis Science Center, Department of Medical Biochemistry and Microbiology, Uppsala University, 75123 Uppsala, Sweden
| | - Delia Grace
- Department of Biosciences, International Livestock Research Institute, Nairobi 00100, Kenya
- Food and Markets Department, Natural Resources Institute, Chatham Maritime ME4 4TB, UK
| | - Ram Pratim Deka
- International Livestock Research Institute, Regional Office for South Asia, New Delhi 110012, India
| | - Rajeswari Shome
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru 560064, India
| | - Samiran Bandyopadhyay
- Eastern Regional Station, ICAR-Indian Veterinary Research Institute, Kolkata 700037, India
| | - Naresh Kumar Goyal
- Dairy Microbiology Division, National Dairy Research Institute, Karnal 132001, India
| | - Garima Sharma
- Department of Biosciences, International Livestock Research Institute, Nairobi 00100, Kenya
- Zoonosis Science Center, Department of Medical Biochemistry and Microbiology, Uppsala University, 75123 Uppsala, Sweden
| | - Bibek Ranjan Shome
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru 560064, India
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Zhang Q, Pan Y, Wang M, Sun L, Xi Y, Li M, Zeng Q. In vitro evaluation of probiotic properties of lactic acid bacteria isolated from the vagina of yak ( Bos grunniens). PeerJ 2022; 10:e13177. [PMID: 35368335 PMCID: PMC8973462 DOI: 10.7717/peerj.13177] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 03/07/2022] [Indexed: 01/12/2023] Open
Abstract
Bovine endometritis is an inflammatory disease of the uterus that occurs after parturition and can result in the destruction of uterine microecology, disruption of hormone secretion, and even infertility. Problems such as antibiotic residues, pathogen resistance, and microbiota dysbiosis caused by conventional antibiotic therapy cannot be ignored. According to the microecological balance theory, probiotics have the potential to prevent or cure endometritis in cattle. Probiotics can positively influence host physiology by regulating microecological imbalance, modulating immunity, and antagonizing pathogens. Since some probiotics contribute to host health only in their specific natural niches, lactic acid bacteria (LAB) from the vagina may have better potential to fight against vaginal and uterine infection. The yak (Bos grunniens) is an ancient and primitive livestock animal that is adapted to high altitude and harsh environments (cold, nutritional deficiencies, and hypoxia). However, to our knowledge, there have been no studies on yak vaginal LAB. Therefore, the purpose of this study was to isolate vaginal LAB from yak, evaluate and compare the probiotic potential and safety of the isolates, and help establish the probiotics library that can be used in the prevention and/or treatment of endometritis. Twenty-five vaginal swabs were collected from healthy yak and cultured in deMan, Rogosa, and Sharpe (MRS) broth. Tentative LAB strains were preliminarily determined through calcium dissolving zone and morphological identification, and the strains were then identified using 16S rRNA gene sequencing. The probiotics of the isolates were detected using cell aggregation, hydrophobicity, resistance to acid and bile salt, adhesion, and antibacterial activities. Additionally, antimicrobial susceptibility, hemolytic activity, and detection of potential virulence factors were determined in order to confirm the safety of these strains. Five isolates were identified: Leuconostoc mesenteroides, Lactobacillus plantarum, Enterococcus hirae, Lacticaseibacillus camelliae, and Lactobacillus mucosae. All isolates had certain growth resistance, aggregation ability, effective antimicrobial potency against Escherichia coli, Staphylococcus aureus, and Salmonella typhimurium, were sensitive to most antibiotics, and could effectively adhere to bovine endometrial epithelial cells (BEECs). None of the isolates showed hemolytic activity or harbored virulence factors. Our results indicated that the five isolates have considerable potential as probiotics that can be used to prevent and/or treat bovine endometritis. We speculate that a mixture of YD6, YD9, and YD25 may yield better results, although this would require extensive experiments to verify.
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Affiliation(s)
- Qingli Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Yangyang Pan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China,Technology and Research Center of Gansu Province for Embryonic Engineering of Bovine and Sheep & Goat, Lanzhou, Gansu, China
| | - Meng Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Liang Sun
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Yao Xi
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Mei Li
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Qiaoying Zeng
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
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Osawa T. Predisposing factors, diagnostic and therapeutic aspects of persistent endometritis in postpartum cows. J Reprod Dev 2021; 67:291-299. [PMID: 34511538 PMCID: PMC8568609 DOI: 10.1262/jrd.2021-052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A certain level of endometrial bacterial infection and inflammation is involved in bovine uterine involution during the puerperal period. Factors that hamper normal uterine involution
expose the uterine environment to pathological conditions, causing different endometritis levels. The lack of proper diagnostic tools extends the time to conception. Efforts have been made
to elucidate the postpartum uterine environment, including bacterial flora, changes in transient endometrial inflammation, and the pathophysiology of endometritis, to improve bovine
reproductive performance. E. coli and Trueperella pyogenes in the uterus are likely to cause persistent infection, and Mycoplasma
bovigenitalium infection is associated with dystocia and cytological endometritis in postpartum dairy cows. Due to the widespread use of cytobrush as a diagnostic tool for bovine
subclinical endometritis (SE) that enables quantification of the degree of inflammation, we found that endometritis at week 5 postpartum was associated with delayed first ovulation.
Approximately 30% of open cows have SE during the postpartum period, and cows with low blood glucose during prepartum have a high risk of developing SE. Additionally, cows with purulent
vaginal discharge do not always have endometritis but only vaginitis and/or cervicitis. Intrauterine infusion of polyvinylpyrrolidone-iodine (PVP-I) improves fertility and promotes
endometrial epithelial cell regeneration after inducing transient uterine inflammation, suggesting that PVP-I could be a good alternative to antibiotics. In conclusion, prepartum management
to prevent glucose deficiency, prompt diagnosis to identify causative agents and intrauterine inflammation levels, and appropriate treatment to minimize antimicrobial resistance is
beneficial for tackling endometritis and improving reproductive performance in bovine herds.
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Affiliation(s)
- Takeshi Osawa
- Laboratory of Theriogenology, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
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