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Mangal S, Ranot N, Nosran A, Singh V, Chhibber S, Harjai K. In vivo efficacy of pyochelin-mediated delivery of zingerone in Pseudomonas aeruginosa-induced peritonitis. Future Microbiol 2023; 18:1339-1351. [PMID: 37962488 DOI: 10.2217/fmb-2023-0016] [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: 01/26/2023] [Accepted: 07/14/2023] [Indexed: 11/15/2023] Open
Abstract
Aim: The efficacy of a pyochelin-zingerone conjugate (PZC) against Pseudomonas aeruginosa in vivo in a mouse model of peritonitis, as well as mode of action in vitro, were investigated. Methods & results: Intraperitoneal administration of PZC (220 mg kg-1 b.wt.) resulted in a significant reduction in bacterial count in liver tissue by 2 log10 on the 4th day post infection. This was supported by reduced levels of inflammatory markers, liver function, inflammatory cytokines and improved histopathology. PZC showed its ability to disrupt the cellular membrane, increase permeability of the membrane and leakage of intracellular contents of P. aeruginosa, resulting in its death. Conclusion: The present study reports the hepatoprotective potential of PZC in an experimental model of P. aeruginosa-induced peritonitis.
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Affiliation(s)
- Surabhi Mangal
- Department of Microbiology, Panjab University, Chandigarh, 160025, India
| | - Nishma Ranot
- Department of Microbiology, Panjab University, Chandigarh, 160025, India
| | - Anu Nosran
- Department of Microbiology, Panjab University, Chandigarh, 160025, India
| | - Vasundhara Singh
- Department of Applied Sciences, Punjab Engineering College (Deemed to be University), Chandigarh, 160012, India
| | - Sanjay Chhibber
- Department of Microbiology, Panjab University, Chandigarh, 160025, India
| | - Kusum Harjai
- Department of Microbiology, Panjab University, Chandigarh, 160025, India
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Ghssein G, Barakat R, Nehme N, Awada R, Hassan HF. Fecal prevalence of Campylobacter spp. in house dogs in Lebanon: A pilot study. Vet World 2023; 16:2250-2255. [PMID: 38152257 PMCID: PMC10750756 DOI: 10.14202/vetworld.2023.2250-2255] [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: 07/29/2023] [Accepted: 10/12/2023] [Indexed: 12/29/2023] Open
Abstract
Background and Aim Campylobacter spp. are Gram-negative bacilli that are widely recognized as a primary cause of bacterial gastroenteritis worldwide. Campylobacteriosis is the disease caused by this pathogen. Recently, greater attention has been given to the prevalence of campylobacteriosis in different animals, including pets. These animals are considered to be significant reservoirs for this zoonosis. In Lebanon, the occurrence of Campylobacter infection is high. Our first-of-its-kind pilot study in Lebanon aimed to estimate the fecal prevalence of Campylobacter species in house dogs. Materials and Methods Thirty-five rectal swabs were collected from male and female house dogs of different ages, both with or without diarrhea. Samples obtained from the dogs were subjected to qualitative microbiological culture testing and molecular diagnosis by polymerase chain reaction assays after bacterial DNA extraction. Results Fecal prevalence of Campylobacter spp. in house dogs in this study was 17%. There was a relatively higher prevalence among young females and a significant difference between healthy dogs and those suffering from diarrhea. Conclusion Campylobacteriosis was found to be prevalent among house dogs in Lebanon, making them potential carriers of Campylobacter species.
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Affiliation(s)
- Ghassan Ghssein
- Department of Biology, Faculty of Sciences, Lebanese University, Beirut, Lebanon
- Department of Laboratory Sciences, Faculty of Public Health, Islamic University of Lebanon, Beirut, Lebanon
| | - Rana Barakat
- Department of Biology, Faculty of Sciences, Lebanese University, Beirut, Lebanon
- Department of Laboratory Sciences, Faculty of Public Health, Islamic University of Lebanon, Beirut, Lebanon
| | - Nada Nehme
- Department of Environmental Sciences and Natural Resources, Faculty of Agricultural Engineering and Veterinary Medicine, Lebanese University, Dekwaneh, Mount Lebanon, Lebanon
| | - Rana Awada
- Department of Biology, Faculty of Sciences, Lebanese University, Beirut, Lebanon
| | - Hussein F. Hassan
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon
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Xu X, Rothrock MJ, Dev Kumar G, Mishra A. Assessing the Risk of Seasonal Effects of Campylobacter Contaminated Broiler Meat Prepared In-Home in the United States. Foods 2023; 12:2559. [PMID: 37444297 DOI: 10.3390/foods12132559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/20/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
Campylobacter has consistently posed a food safety issue in broiler meat. This study aimed to create a quantitative microbial risk assessment model from retail to consumption, designed to evaluate the seasonal risk of campylobacteriosis associated with broiler meat consumption in the United States. To achieve this, data was gathered to build distributions that would enable us to predict the growth of Campylobacter during various stages such as retail storage, transit, and home storage. The model also included potential fluctuations in concentration during food preparation and potential cross-contamination scenarios. A Monte Carlo simulation with 100,000 iterations was used to estimate the risk of infection per serving and the number of infections in the United States by season. In the summer, chicken meat was estimated to have a median risk of infection per serving of 9.22 × 10-7 and cause an average of about 27,058,680 infections. During the winter months, the median risk of infection per serving was estimated to be 4.06 × 10-7 and cause an average of about 12,085,638 infections. The risk assessment model provides information about the risk of broiler meat to public health by season. These results will help understand the most important steps to reduce the food safety risks from contaminated chicken products.
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Affiliation(s)
- Xinran Xu
- Department of Food Science and Technology, College of Agricultural & Environmental Science, University of Georgia, 100 Cedar St., Athens, GA 30602, USA
| | - Michael J Rothrock
- Egg Safety and Quality Research Unit, U.S. National Poultry Research Center, Agricultural Research Service, United States Department of Agriculture, Athens, GA 30605, USA
| | | | - Abhinav Mishra
- Department of Food Science and Technology, College of Agricultural & Environmental Science, University of Georgia, 100 Cedar St., Athens, GA 30602, USA
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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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