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Liu H, Pan S, Cheng Y, Luo L, Zhou L, Fan S, Wang L, Jiang S, Zhou Z, Liu H, Zhang S, Ren Z, Ma X, Cao S, Shen L, Wang Y, Cai D, Gou L, Geng Y, Peng G, Yan Q, Luo Y, Zhong Z. Distribution and associations for antimicrobial resistance and antibiotic resistance genes of Escherichia coli from musk deer (Moschus berezovskii) in Sichuan, China. PLoS One 2023; 18:e0289028. [PMID: 38011149 PMCID: PMC10681177 DOI: 10.1371/journal.pone.0289028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 07/08/2023] [Indexed: 11/29/2023] Open
Abstract
This study aimed to investigate the antimicrobial resistance (AMR), antibiotic resistance genes (ARGs) and integrons in 157 Escherichia coli (E. coli) strains isolated from feces of captive musk deer from 2 farms (Dujiang Yan and Barkam) in Sichuan province. Result showed that 91.72% (144/157) strains were resistant to at least one antimicrobial and 24.20% (38/157) strains were multi-drug resistant (MDR). The antibiotics that most E. coli strains were resistant to was sulfamethoxazole (85.99%), followed by ampicillin (26.11%) and tetracycline (24.84%). We further detected 13 ARGs in the 157 E. coli strains, of which blaTEM had the highest occurrence (91.72%), followed by aac(3')-Iid (60.51%) and blaCTX-M (16.56%). Doxycycline, chloramphenicol, and ceftriaxone resistance were strongly correlated with the presence of tetB, floR and blaCTX-M, respectively. The strongest positive association among AMR phenotypes was ampicillin/cefuroxime sodium (OR, 828.000). The strongest positive association among 16 pairs of ARGs was sul1/floR (OR, 21.667). Nine pairs positive associations were observed between AMR phenotypes and corresponding resistance genes and the strongest association was observed for CHL/floR (OR, 301.167). Investigation of integrons revealed intl1 and intl2 genes were detected in 10.19% (16/157) and 1.27% (2/157) E. coli strains, respectively. Only one type of gene cassettes (drA17-aadA5) was detected in class 1 integron positive strains. Our data implied musk deer is a reservoir of ARGs and positive associations were common observed among E. coli strains carrying AMRs and ARGs.
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Affiliation(s)
- Hang Liu
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Shulei Pan
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Yuehong Cheng
- Sichuan Wolong National Natural Reserve Administration Bureau, Wenchuan, Sichuan, China
| | - Lijun Luo
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Lei Zhou
- Sichuan Institute of Musk Deer Breeding, Dujiangyan, China
| | - Siping Fan
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Liqin Wang
- The Chengdu Zoo, Institute of Wild Animals, Chengdu, China
| | - Shaoqi Jiang
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Ziyao Zhou
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Haifeng Liu
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Shaqiu Zhang
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Zhihua Ren
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Xiaoping Ma
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Suizhong Cao
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Liuhong Shen
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Ya Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Dongjie Cai
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Liping Gou
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Yi Geng
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Guangneng Peng
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Qigui Yan
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Yan Luo
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
| | - Zhijun Zhong
- College of Veterinary Medicine, Sichuan Agricultural University, Key Laboratory of Animal Disease and Human Health of Sichuan, Chengdu, China
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Ikushima S, Torii H, Sugiyama M, Asai T. Characterization of quinolone-resistant and extended-spectrum β-lactamase-producing Escherichia coli derived from sika deer populations of the Nara Prefecture, Japan. J Vet Med Sci 2023; 85:937-941. [PMID: 37438115 PMCID: PMC10539820 DOI: 10.1292/jvms.23-0069] [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: 07/14/2023] Open
Abstract
Wildlife in urban areas have the potential to disseminate antimicrobial-resistant bacteria (ARB) across a wider environment. Using antimicrobial-supplemented agar plates, we isolated extended-spectrum β-lactamase-producing Escherichia coli (EEC) and quinolone-resistant E. coli (QREC) from 144, 23, and 30 deer feces from Nara Park (NP), rural area neighboring NP (RA), and Mt. Odaigahara (MO), respectively. In NP and RA, the prevalence of EEC was 24.3 and 4.3%, respectively; that of QREC was 11.1 and 17.4%, respectively. Neither EEC nor QREC were detected in MO. The pulsotypes of EEC and QREC isolates differed between NP and RA. Our study suggests that deer of the Nara Prefecture are potential carriers of ARB, but long-distance dissemination is unlikely due to limited deer movement.
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Affiliation(s)
- Shiori Ikushima
- The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
- Present address: Fukushima Regional Collaborative Center, National Institute for Environmental Studies, Fukushima, Japan
| | - Harumi Torii
- Center for Natural Environment Education, Nara University of Education, Nara, Japan
| | - Michiyo Sugiyama
- The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
| | - Tetsuo Asai
- The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
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Duangurai T, Rungruengkitkul A, Kong-Ngoen T, Tunyong W, Kosoltanapiwat N, Adisakwattana P, Vanaporn M, Indrawattana N, Pumirat P. Phylogenetic analysis and antibiotic resistance of Escherichia coli isolated from wild and domestic animals at an agricultural land interface area of Salaphra wildlife sanctuary, Thailand. Vet World 2022; 15:2800-2809. [PMID: 36718336 PMCID: PMC9880845 DOI: 10.14202/vetworld.2022.2800-2809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 10/26/2022] [Indexed: 12/13/2022] Open
Abstract
Background and Aim Domestic and wild animals are important reservoirs for antibiotic-resistant bacteria. This study aimed to isolate Escherichia coli from feces of domestic and wild animals at an agricultural land interface area of Salaphra Wildlife Sanctuary, Thailand, and study the phylogenic characteristics and antibiotic resistance in these isolates. Materials and Methods In this cross-sectional, descriptive study, we randomly collected ground feces from free-ranging wild animals (deer and elephants) and domestic animals (cattle and goats). All fecal samples were inoculated onto MacConkey agar plates, and lactose-fermenting colonies were identified as E. coli. Antibiotic susceptibility of the E. coli isolates was determined using the disc diffusion method. Polymerase chain reaction assays were used to detect antibiotic resistance and virulence genes. Results We obtained 362 E. coli isolates from the collected fecal samples. The E. coli isolates were categorized into four phylogenetic groups according to the virulence genes (chuA, vjaA, and TspE4C2). Phylogenetic Group D was predominant in the deer (41.67%) and elephants (63.29%), whereas phylogenetic Group B1 was predominant in the cattle (62.31%), and phylogenetic Groups A (36.36%) and B2 (33.33%) were predominant in the goats. Antibiotic susceptibility testing revealed that most antibiotic-resistant E. coli were isolated from domestic goats (96.96%). Among the 362 E. coli isolates, 38 (10.5%) were resistant to at least one antibiotic, 21 (5.8%) were resistant to two antibiotics, and 6 (1.66%) were resistant to three or more antibiotics. Ampicillin (AMP) was the most common antibiotic (48.48%) to which the E. coli were resistant, followed by tetracycline (TET) (45.45%) and trimethoprim-sulfamethoxazole (3.03%). One isolate from an elephant was resistant to five antibiotics: AMP, amoxicillin, sulfisoxazole, TET, and ciprofloxacin. Determination of antibiotic resistance genes confirmed that E. coli isolates carried antibiotic resistance genes associated with phenotypic resistance to antibiotics. Most antibiotic-resistant E. coli belonged to phylogenic Groups A and B1, and most non-resistant E. coli belonged to phylogenic Groups B2 and D. Conclusion Monitoring E. coli isolates from wild and domestic animals showed that all four phylogenic groups of E. coli have developed antibiotic resistance and are potential sources of multidrug resistance. High levels of antibiotic resistance have been linked to domestic animals. Our results support strengthening surveillance to monitor the emergence and effects of antibiotic-resistant microorganisms in animals.
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Affiliation(s)
- Taksaon Duangurai
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Amporn Rungruengkitkul
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Thida Kong-Ngoen
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Witawat Tunyong
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Nathamon Kosoltanapiwat
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Poom Adisakwattana
- Department of Helminthology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Muthita Vanaporn
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Nitaya Indrawattana
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Pornpan Pumirat
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand,Corresponding author: Pornpan Pumirat, e-mail: Co-authors: TD: , AR: , TK: , WT: , NK: , PA: , MV: , NI:
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Clonal Spread of Quinolone-Resistant Escherichia coli among Sika Deer (Cervus nippon) Inhabiting an Urban City Park in Japan. J Wildl Dis 2021; 57:172-177. [PMID: 33635973 DOI: 10.7589/jwd-d-19-00005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 06/05/2020] [Indexed: 11/20/2022]
Abstract
The emergence and dissemination of resistance to clinically important antimicrobials in wild animals is of great concern. The aim of our study was to reveal the prevalence and intraspecies dissemination of quinolone-resistant Escherichia coli (QREC) in sika deer (Cervus nippon) in Nara Park, a famous tourist spot in Japan. Fecal samples were collected from 59 wild deer in Nara Park between July and October 2018. We isolated QREC using deoxycholate-hydrogen sulfide-lactose agar containing nalidixic acid and subjected it to antimicrobial susceptibility testing. The mutations in the quinolone resistance-determining region (QRDR) of the gyrA and parC genes of the isolates were analyzed and fragment patterns of genomic DNA were compared by pulsed-field gel electrophoresis (PFGE). A total of 105 QREC isolates were obtained from 41 deer (70%). All isolates had mutations within the QRDR. Other than quinolone resistance, QREC isolates also showed resistance to various other antimicrobial agents. The QREC isolates were classified into 15 PFGE clusters, of which seven were observed in multiple deer. Our results suggest clonal transmission of QREC in a high-density deer population. Spread of QREC in deer inhabiting a tourist location could have potential impact on public health.
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Phytogenic products, used as alternatives to antibiotic growth promoters, modify the intestinal microbiota derived from a range of production systems: an in vitro model. Appl Microbiol Biotechnol 2020; 104:10631-10640. [PMID: 33180171 PMCID: PMC7659417 DOI: 10.1007/s00253-020-10998-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 10/20/2020] [Accepted: 11/02/2020] [Indexed: 12/26/2022]
Abstract
The removal of antibiotics from the feeds used in the livestock industry has resulted in the use of a wide range of alternative antimicrobial products that aim to deliver the productivity and health benefits that have traditionally been associated with antibiotics. Amongst the most popular alternatives are phytogenic product-based extracts from herbs and spices with known antimicrobial properties. Despite embracing such alternatives, the industry is still largely unaware of modes of action, their overall effects on animal health, and interactions with other feed additives such as probiotics. To address some of these issues, three phytogenic products were selected and their interactions with caecal microbiota of layers, grown under six different production systems, were investigated in vitro. Caecal microbiotas were grown with and without phytogenic products, and the changes in microbiota composition were monitored by sequencing of 16S rRNA gene amplicons. Phytogenic products and production system both significantly influenced microbiota composition. The three phytogenic products all altered the relative abundance of species within the Lactobacillus genus, by promoting the growth of some and inhibiting other Lactobacillus species. There were also significant alterations in the Bacillus genus. This was further investigated by comparing the effects of the phytogenic products on the growth of a commercially used Bacillus-based probiotic. The phytogens affected the probiotic mix differently, with some promoting the growth of Bacillus sp. at lower phytogenic concentrations, and fully suppressing growth at higher concentrations, indicating the importance of finding an optimal concentration that can control pathogens while promoting beneficial bacteria. KEY POINTS: • After removal of antibiotics from animal feed, urgent solutions for pathogen control were needed. • Alternative products entered the market without much knowledge on their effects on animal health. • Probiotic products are used in combination with phytogens despite the possible incompatibility.
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Sarker MS, Ahad A, Ghosh SK, Mannan MS, Sen A, Islam S, Bayzid M, Bupasha ZB. Antibiotic-resistant Escherichia coli in deer and nearby water sources at Safari parks in Bangladesh. Vet World 2019; 12:1578-1583. [PMID: 31849419 PMCID: PMC6868268 DOI: 10.14202/vetworld.2019.1578-1583] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 09/03/2019] [Indexed: 11/16/2022] Open
Abstract
Background and Aim The emergence and rapid dissemination of multidrug-resistant (MDR) bacteria in different ecosystems is a growing concern to human health, animal health, and the environment in recent years. The study aimed to determine the antibiotic resistance in Escherichia coli from deer and nearby water sources at two different Safari parks in Bangladesh. Materials and Methods A number of 55 fresh fecal samples of deer and six water samples from nearby lakes were collected from two Safari parks. Samples were processed, cultured, and carried out biochemical tests for E. coli. The antibiotic susceptibility was determined by disk diffusion method. To identify the resistance genes, polymerase chain reaction was performed. Results A total of 32 E. coli isolates from 55 fecal samples and 6 of 6 E. coli isolates from lake water were isolated. From fecal E. coli isolates, ampicillin and sulfamethoxazole were 90.63% (n=29/32) resistant and 87.5% (n=28/32) were resistant to tetracycline and nalidixic acid. High resistance was also observed to other antibiotics. On the contrary, all E. coli isolates from water sources were 100% (n=6/6) resistant to ampicillin, tetracycline, sulfamethoxazole, and nalidixic acid. MDR was revealed in all water samples, whereas 96.88% (n=31/32) was found in fecal isolates. A number of bla TEM, tet A, and Sul2 genes were detected from both isolates. Conclusion This study for the 1st time highlights, a significant proportion of E. coli isolates in wildlife deer and nearby water sources were MDR in Bangladesh.
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Affiliation(s)
- Md Samun Sarker
- Department of Microbiology and Veterinary Public Health, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Chattogram 4225, Bangladesh
| | - Abdul Ahad
- Department of Microbiology and Veterinary Public Health, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Chattogram 4225, Bangladesh
| | - Saurav Kumar Ghosh
- Department of Microbiology and Veterinary Public Health, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Chattogram 4225, Bangladesh
| | - Md Shahriar Mannan
- Department of Livestock Services, Upazila Livestock Office, Thakurgaon Sadar, Thakurgaon, Bangladesh
| | - Arup Sen
- Department of Microbiology and Veterinary Public Health, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Chattogram 4225, Bangladesh
| | - Sirazul Islam
- Department of Livestock Services, Upazila Livestock Office, Mithamain, Kishoreganj, Bangladesh
| | - Md Bayzid
- Department of Pathology and Parasitology, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Chattogram 4225, Bangladesh
| | - Zamila Bueaza Bupasha
- Department of Microbiology and Veterinary Public Health, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Chattogram 4225, Bangladesh
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Milton AAP, Agarwal RK, Priya GB, Aravind M, Athira CK, Rose L, Saminathan M, Sharma AK, Kumar A. Captive wildlife from India as carriers of Shiga toxin-producing, Enteropathogenic and Enterotoxigenic Escherichia coli. J Vet Med Sci 2018; 81:321-327. [PMID: 30393267 PMCID: PMC6395213 DOI: 10.1292/jvms.18-0488] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Shiga toxin-producing Escherichia coli (STEC), Enteropathogenic E. coli (EPEC), and Enterotoxigenic E. coli (ETEC) make up an important group of pathogens causing major animal and public health concerns worldwide. The aim of this study was to determine the prevalence of different pathotypes of E. coli in captive wildlife. We analyzed 314 fresh fecal samples from captive wildlife, 30 stool swabs from animal caretakers, and 26 feed and water samples collected from various zoological gardens and enclosures in India for the isolation of E. coli, followed by pathotyping by multiplex PCR. The overall occurrence rate of E. coli was 74.05% (274/370). The 274 E. coli isolates were pathotyped by multiplex PCR targeting 6 genes. Of them, 5.83% were pathotyped as EPEC, 4.74% as STEC, and 1.09% as ETEC. The 16S rRNA genes from the selected isolates were amplified, sequenced, and a phylogenetic tree was constructed. The phylogenetic tree exhibited indiscriminate genetic profiling and some isolates from captive wild animals had 100% genetic identity with isolates from caretakers, suggesting that captive wildlife may serve as a reservoir for infection in humans and vice-versa. The present study demonstrates for the first time the prevalence of these E. coli pathotypes in captive wildlife in India. Our study suggests that atypical EPEC strains are more frequent than typical EPEC strains in captive wildlife. Discovering the implications of the prevalence of these pathotypes in wildlife conservation is a challenging topic to be addressed by further investigations.
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Affiliation(s)
- Arockiasamy Arun Prince Milton
- Division of Veterinary Public Health, Indian Council of Agricultural Research (ICAR)-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Rajesh Kumar Agarwal
- Division of Bacteriology and Mycology, Indian Council of Agricultural Research (ICAR)-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Govindarajan Bhuvana Priya
- Division of Bacteriology and Mycology, Indian Council of Agricultural Research (ICAR)-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Manivasagam Aravind
- Department of Veterinary Parasitology, Madras Veterinary College, Chennai-600007, Tamil Nadu, India
| | - Cheruplackal Karunakaran Athira
- Division of Veterinary Public Health, Indian Council of Agricultural Research (ICAR)-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Losa Rose
- Division of Bacteriology and Mycology, Indian Council of Agricultural Research (ICAR)-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Mani Saminathan
- Division of Pathology, Indian Council of Agricultural Research (ICAR)-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Anil Kumar Sharma
- Division of Pathology, Indian Council of Agricultural Research (ICAR)-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Ashok Kumar
- Division of Animal Science, Indian Council of Agricultural Research (ICAR), Krishi Bhavan, New Delhi, India
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Hong H, Lee JH, Kim SK. Phytochemicals and antioxidant capacity of some tropical edible plants. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2018; 31:1677-1684. [PMID: 29642672 PMCID: PMC6127596 DOI: 10.5713/ajas.17.0903] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 03/22/2018] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To find biological functions such as antibacterial and antioxidant activities in several tropical plants and to investigate the possibility of antibiotic substitute agents to prevent and treat diseases caused by pathogenic bacteria. METHODS Plants such as Poncirus trifoliata fruit (Makrut), Zingiber officinale Rosc (Khing), Areca catechu L. (Mak), Solanum melongena L. I (Makkhuayao), and Solanum melongena L. II (Makhurapro) were extracted by methanol, n-hexane, chloroform, ethyl acetate, butanol and water. The free radical scavenging activities were measured using 2-diphenyl-2-picryl hydrazyl photometric assay. Antibacterial activities with a minimum inhibitory concentration (MIC) were observed by agar diffusion assay against pathogenic strains of Escherichia coli, Burkholderia sp., Haemopilus somnus, Haemopilus parasuis, Clostridium perfringens, and Pantoea agglomerans. RESULTS Poncirus trifoliata fruit methanol extract showed antibacterial activities against gram-negative and gram-positive pathogens. Additionally, this showed the strongest antibacterial activity against Burkholderia sp. and Haemopilus somnus with MIC 131 μg/mL, respectively. Areca catechu L. water extract showed antibacterial activities against Burkholderia sp., Haemopilus somnus, and Haemopilus parasuis. The MIC value for Haemopilus parasuis was 105 μg/mL in this. Antioxidant activity of Zingiber officinale Rosc n-hexane extract showed 2.23 mg/mL effective concentration 50% (EC50) value was the highest activity among tropical plants extracts. Total polyphenol content in Zingiber officinale Rosc methanol extract was 48.4 μg/mL and flavonoid content was 22.1 μg/mL showed the highest values among tested plants extracts. CONCLUSION Taken together, these results suggest that tropical plants used in this study may have a potential benefit as an alternative antibiotics agent through their antibacterial and antioxidant activities.
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Affiliation(s)
- Heeok Hong
- Department of Medical Science, School of Medicine, Konkuk University, Seoul 05029, Korea
| | - Jun-Hyeong Lee
- Department of Animal Sciences and Technology, Konkuk University, Seoul 05029, Korea
| | - Soo-Ki Kim
- Department of Animal Sciences and Technology, Konkuk University, Seoul 05029, Korea
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Cabal A, Vicente J, Alvarez J, Barasona JA, Boadella M, Dominguez L, Gortazar C. Human influence and biotic homogenization drive the distribution of Escherichia coli virulence genes in natural habitats. Microbiologyopen 2017; 6. [PMID: 28213899 PMCID: PMC5458461 DOI: 10.1002/mbo3.445] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 12/13/2016] [Accepted: 12/21/2016] [Indexed: 11/08/2022] Open
Abstract
Cattle are the main reservoirs for Shiga-toxin-producing Escherichia coli (STEC), the only known zoonotic intestinal E. coli pathotype. However, there are other intestinal pathotypes that can cause disease in humans, whose presence has been seldom investigated. Thus, our aim was to identify the effects of anthropic pressure and of wild and domestic ungulate abundance on the distribution and diversity of the main human E. coli pathotypes and nine of their representative virulence genes (VGs). We used a quantitative real-time PCR (qPCR) for the direct detection and quantification of the genus-specific gene uidA, nine E. coli VGs (stx1, sxt2, eae, ehxA, aggR, est, elt, bfpA, invA), as well as four genes related to O157:H7 (rfbO157 , fliCH7 ) and O104:H4 (wzxO104 , fliCH4 ) serotypes in animals (feces from deer, cattle, and wild boar) and water samples collected in three areas of Doñana National Park (DNP), Spain. Eight of the nine VGs were detected, being invA, eae, and stx2 followed by stx1, aggR, and ehxA the most abundant ones. In quantitative terms (gene copies per mg of sample), stx1 and stx2 gave the highest values. Significant differences were seen regarding VGs in the three animal species in the three sampled areas. The serotype-related genes were found in all but one sample types. In general, VGs were more diverse and abundant in the northern part of the Park, where the surface waters are more contaminated by human waste and farms. In the current study, we demonstrated that human influence is more relevant than host species in shaping the E. coli VGs spatial pattern and diversity in DNP. In addition, wildlife could be potential reservoirs for other pathotypes different from STEC, however further isolation steps would be needed to completely characterize those E. coli.
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Affiliation(s)
- Adriana Cabal
- VISAVET Health Surveillance Centre, Universidad Complutense, Madrid, Spain.,SaBio IREC, National Wildlife Research Institute (CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Joaquin Vicente
- SaBio IREC, National Wildlife Research Institute (CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Julio Alvarez
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, USA
| | - Jose Angel Barasona
- SaBio IREC, National Wildlife Research Institute (CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Mariana Boadella
- SaBio IREC, National Wildlife Research Institute (CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Lucas Dominguez
- VISAVET Health Surveillance Centre, Universidad Complutense, Madrid, Spain
| | - Christian Gortazar
- SaBio IREC, National Wildlife Research Institute (CSIC-UCLM-JCCM), Ciudad Real, Spain
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CHARACTERIZATION OF VIRULENCE GENES AND ANTIMICROBIAL RESISTANCE OF LUNG PATHOGENIC ESCHERICHIA COLI ISOLATES IN FOREST MUSK DEER (MOSCHUS BEREZOVSKII). J Zoo Wildl Med 2016; 47:540-50. [PMID: 27468027 DOI: 10.1638/2014-0167.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study investigated genotypic diversity, 26 virulence genes, and antimicrobial susceptibility of lung pathogenic Escherichia coli (LPEC) isolated from forest musk deer. Associations between virulence factors (VFs) and phylogenetic group, between antimicrobial resistance (AMR) and phylogenetic group, and between AMR and VFs were subsequently assessed. The results showed 30 LPEC isolated were grouped into seven different clusters (A, B, C, D, E, F, and G). The detection rates of crl (90%), kpsMT II (76.67%), mat (76.67%), and ompA (80%) were over 75%. The most frequent types of resistance were to amoxicillin (100%), sulfafurazole (100%), ampicillin (96.67%), and tetracycline (96.67%), with 93.33% (n = 28) of isolates resistant to more than eight types of drugs. There were significant relationships between resistance to cefalotin and the presence of iucD(a) (P < 0.001), papC (P = 0.032), and kpsMT II (P = 0.028); between resistance to chloromycetin and the presence of irp2 (P = 0.004) and vat (P = 0.047); between resistance to nalidixic acid and the presence of crl (P = 0.002) and iucD(a) (P = 0.004); and between resistance to ampicillin/sulbactam and the presence of vat (P = 0.013). These results indicated there could be some association between resistance and VFs, and there is a great need for the prudent use of antimicrobial agents in LPEC.
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Carrillo-Del Valle MD, De la Garza-García JA, Díaz-Aparicio E, Valdivia-Flores AG, Cisneros-Guzmán LF, Rosario C, Manjarrez-Hernández ÁH, Navarro A, Xicohtencatl-Cortes J, Maravilla P, Hernández-Castro R. Characterization of Escherichia coli strains from red deer (Cervus elaphus) faeces in a Mexican protected natural area. EUR J WILDLIFE RES 2016. [DOI: 10.1007/s10344-016-1015-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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