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Kumar J, Onteru SK, Singh D. Deciphering the Drug Delivery Potential of Milk Exosome Nanovesicles for Aminobenzylpenicillin Therapeutic Efficacy against Contagious Staphylococcus Aureus in Bovine Mastitis. Adv Biol (Weinh) 2024; 8:e2300519. [PMID: 38573624 DOI: 10.1002/adbi.202300519] [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: 09/29/2023] [Revised: 01/21/2024] [Indexed: 04/05/2024]
Abstract
The emergence of antimicrobial resistance and failure of antibiotic treatment are challenging tasks for managing bovine mastitis, which is mainly caused by the contagious Staphylococcus aureus (S. aureus).To overcome these difficulties, there is an urgent need for a novel drug system. In the present study, the aim is to develop next-generation therapeutics against S. aureus by harnessing the drug delivery potential of milk nanovesicles called milk exosomes (mENs). In the present work, a drug system is developed by encapsulating aminobenzylpenicillin (AMP) in mENs (mENs-AMP). Electron microscopy and zeta-sizer results indicate that the size of mENs-AMP ranged from 55.79 ± 2.8 to 85.53 ± 7.4 nm. The AMP loading efficiency in mENs is 88.61% with its sustained release. Fluorescence spectroscopy results indicated that mENs are biocompatible with mammary epithelial cells. In vitro studies show that the antibacterial activity and the minimum inhibitory concentrations of mENs-AMP are eleven times greater and four times lower than that of unencapsulated AMP, respectively. The mENs-AMP exhibit significantly higher therapeutic efficacy than AMP at the same dosage and treatment frequency. Validation of this approach is demonstrated in mastitis-affected animals through an observation in the reduction of somatic cell counts and bacterial loads in the milk of treated animals.
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Affiliation(s)
- Jitendra Kumar
- Molecular Endocrinology, Functional Genomics & Systems Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - Suneel Kumar Onteru
- Molecular Endocrinology, Functional Genomics & Systems Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - Dheer Singh
- Molecular Endocrinology, Functional Genomics & Systems Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India
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Kahya Demirbilek S, Yıldız M, Akkoç A, Mutlu AM, Ardıçlı Ö, Aner H. Comparison of bacteriological culture method and multiplex real-time PCR for detection of mastitis. Res Vet Sci 2024; 172:105237. [PMID: 38555775 DOI: 10.1016/j.rvsc.2024.105237] [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] [Received: 10/14/2023] [Revised: 02/29/2024] [Accepted: 03/21/2024] [Indexed: 04/02/2024]
Abstract
This study includes the evaluation of multiplex real-time PCR (rPCR) kit, which was developed to provide rapid diagnosis of mastitis infections, by working with milk samples of 2 different sources of mastitis and comparing the results with the classical bacteriological culture method (BC). A total of 273 bacteria were isolated in 226 samples (47.88%) out of 472 samples by BC. These were 139 (50.91%) Staphylococcus spp., 61 (22.34%) Streptococcus spp., 15 (5.49%) E. coli, 8 (2.93%) Enterococcus spp., 50 (18.31%) other bacteria. When we look at the multiplex rPCR results; 1052 positive were obtained for the gene regions of 14 different bacteria, 1 yeast, and 1 β-lactamase gene examined in 472 samples. While no searched gene region was found by rPCR in 78 (16.5%) of the 472 samples studied, at least 1 gene was detected in 394 (83.5%) samples. These 1052 positive samples by rPCR were; 263 (28.43%) Staphylococcus spp., 51 (5.51%) S. aureus, 57 (6.16%) Enterococcus spp., 49 (5.29%) C. bovis, 16 (1.73%) S. dysgalactiae, 84 (9.08%) S. agalactiae, 71 (7.67%) S. uberis, 73 (7.89%) E. coli, 14 (1.51%) Prototheca spp., 39 (4.21%) T. pyogenes/P. indolicus, 5 (0.54%) S. marcescens, 15 (1.62%) K. oxytoca/pneumonia, 117 (12.64%) Mycoplasma spp., 31 (3.35%) M. bovis, 40 (4.32%) yeast, and 127 samples (26.90%) were β-lactamase positive. When the antibiotic resistance of the isolates was evaluated, 78 (31.96%) tetracycline, 72 (29.5%) penicillin, and 60 (24.59%) clindamycin resistance were observed predominantly in Gram-positive isolates, while 6 (23.07%) tigecycline, 6 (23.07%) netilmicin, 6 (23.07%) pipercillin resistance was found in gram-negative isolates. While a bacteria and/or yeast gene was found by rPCR in 187 of 246 (76.01%) samples with no bacterial growth, a bacterium was isolated with BC in only 20 (8.84%) samples whose gene region was not found by rPCR. As a result, the multiplex rPCR system used in the diagnosis of mastitis has been found to be quite reliable as it can detect a large number of bacteria in a very short time compared to classical methods. Therefore, we advise the use of rPCR and/or culture for confirmation of clinical signs in mastitis and at routine mastitis surveillance.
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Affiliation(s)
| | - Merve Yıldız
- Uludag University, Faculty of Veterinary Medicine, Department of Microbiology, Turkey.
| | - Ahmet Akkoç
- Uludag University, Faculty of Veterinary Medicine, Department of Pathology, 16.000 Görükle-Bursa, Turkey.
| | - Ayşe Meriç Mutlu
- Uludag University, Faculty of Veterinary Medicine, Department of Pathology, 16.000 Görükle-Bursa, Turkey
| | - Özge Ardıçlı
- Uludag University, Faculty of Veterinary Medicine, Department of Microbiology, Turkey.
| | - Havva Aner
- Uludag University, Faculty of Veterinary Medicine, Department of Microbiology, Turkey
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Somrup S, Mitsuwan W, Bhumibhamon T, Pereira MDL, Paul AK, Nissapatorn V, Saengsawang P. Antibiograms, multidrug resistance, and milk-related parameters of bacteria isolated from milk of dairy cattle in Phatthalung, Thailand. Vet World 2024; 17:735-743. [PMID: 38798280 PMCID: PMC11111717 DOI: 10.14202/vetworld.2024.735-743] [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: 10/19/2023] [Accepted: 03/01/2024] [Indexed: 05/29/2024] Open
Abstract
Background and Aim Milk, a nutritious food, is widely consumed in human diets; however, contamination by micro-organisms can negatively impact its quality and consumer health. Contamination by micro-organisms affects the quality of milk, which can affect the quality of the milk production chain. This study aimed to determine the changes in milk composition and antibiotic susceptibility related to bacteria isolated from dairy cow milk. Materials and Methods Raw milk samples were collected from 72 dairy cows. All milk samples were subjected to the California Mastitis Test (CMT) for CMT score determination. We also investigated milk composition, bacterial culture (BC), and antibiotic susceptibility. Results About 47.22% and 30.56% of dairy cattle were positive for CMT + BC and automatic somatic cell count (ASCC) + BC, respectively. Fecal appearance and animal age were found to be risk factors for ASCC + BC positivity in dairy cattle. Bacteria were found in approximately 76% of milk samples, with the most common isolated species being α-hemolytic Streptococcus spp., coagulase-negative Staphylococcus spp., and Escherichia coli. Of these, 70% are resistant to at least one antibiotic. Variation in the multidrug resistance pattern was high in Klebsiella spp. Conclusions Fecal appearance and animal age are risk factors for ASCC + BC positivity in dairy cattle. This study identified antibiotic and multidrug resistance patterns, which require comprehensive studies and effective surveillance systems. Remarkably, the use of antibiotic therapy in dairy cattle should be monitored.
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Affiliation(s)
- Supaporn Somrup
- Faculty of Technology and Community Development, Thaksin University, Phatthalung 93210, Thailand
| | - Watcharapong Mitsuwan
- Akkhraratchakumari Veterinary College, Walailak University, Nakhon Si Thammarat 80160, Thailand
- One Health Research Center, Walailak University, Nakhon Si Thammarat 80160, Thailand
- Center of Excellence in Innovation of Essential Oils, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Teeraphun Bhumibhamon
- Veterinary Research and Development Center (Upper Southern Region), Nakhon Si Thammarat 80110, Thailand
| | - Maria de Lourdes Pereira
- Department of Medical Sciences, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-193, Portugal
| | - Alok K. Paul
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, Australia
| | - Veeranoot Nissapatorn
- School of Allied Health Sciences, Southeast Asia Water Team, World Union for Herbal Drug Discovery, and Research Excellence Center for Innovation and Health Products, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Phirabhat Saengsawang
- Akkhraratchakumari Veterinary College, Walailak University, Nakhon Si Thammarat 80160, Thailand
- One Health Research Center, Walailak University, Nakhon Si Thammarat 80160, Thailand
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Özkan H, Keçeli HH, Kaya U, Dalkiran S, Yüksel M, Tek E, Yakan A. Considering potential roles of selected MicroRNAs in evaluating subclinical mastitis and Milk quality in California mastitis test (+) and infected bovine milk. Anim Sci J 2024; 95:e13959. [PMID: 38769761 DOI: 10.1111/asj.13959] [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: 11/07/2023] [Revised: 04/13/2024] [Accepted: 04/25/2024] [Indexed: 05/22/2024]
Abstract
This study investigates the relationships between subclinical mastitis and milk quality with selected microRNAs in cow milk. California Mastitis Test (CMT)-positive (n = 20) and negative (n = 20) samples were compared (Experiment I). Additionally, samples with CMT-positive but microbiological-negative, as well as positive for only Staphylococcus subspecies (Staph spp.) and only Streptococcus subspecies (Strep spp.) were examined (Experiment II). Four groups were formed in Experiment II: Group I (CMT and microbiological-negative) (n = 20), Group II (CMT-positive but microbiological-negative) (n = 10), Group III (Staph spp.) (n = 5), Group IV (Strep spp.) (n = 5). While electrical conductivity, somatic cell count (SCC), malondialdehyde (MDA) increased, miR-27a-3p and miR-223 upregulated and miR-125b downregulated in the CMT-positive group in Experiment I. SCC and MDA were higher in CMT-positive groups. miR-27a-3p and miR-223 upregulated in Groups III and IV. While miR-155 is upregulated, miR-125b downregulated in Group IV. Milk fat is positively correlated with miR-148a and miR-223. As miR-27a-3p positively correlated with SCC and MDA, miR-125b negatively correlated with electrical conductivity and SCC. miR-148a and MDA were positively correlated. miR-155 was correlated with fat-free dry matter, protein, lactose, and freezing point. miR-223 was positively correlated with SCC and miR-148a. Results particularly highlight miR-27a-3p and miR-223 as potential biomarkers in subclinical mastitis, especially those caused by Staph spp. and Strep spp., while miR-148a, miR-155, and miR-223 stand out in determining milk quality.
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Affiliation(s)
- Hüseyin Özkan
- Faculty of Veterinary Medicine, Department of Genetics, Hatay Mustafa Kemal University, Hatay, Turkiye
| | - Hasan Hüseyin Keçeli
- Faculty of Veterinary Medicine, Department of Genetics, Hatay Mustafa Kemal University, Hatay, Turkiye
| | - Ufuk Kaya
- Faculty of Veterinary Medicine, Department of Biostatistics, Hatay Mustafa Kemal University, Hatay, Turkiye
| | - Sevda Dalkiran
- Institute of Health Sciences, Department of Molecular Biochemistry and Genetics, Hatay Mustafa Kemal University, Hatay, Turkiye
| | - Murat Yüksel
- Faculty of Veterinary Medicine, Department of Veterinary Obstetrics and Gynecology, Hatay Mustafa Kemal University, Hatay, Turkiye
| | - Erhan Tek
- Faculty of Veterinary Medicine, Department of Microbiology, Hatay Mustafa Kemal University, Hatay, Turkiye
| | - Akın Yakan
- Faculty of Veterinary Medicine, Department of Genetics, Hatay Mustafa Kemal University, Hatay, Turkiye
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Bhat RR, Bhat NN, Shabir A, Mir MUR, Ahmad SB, Hussain I, Hussain SA, Ali A, Shamim K, Rehman MU. SNP Analysis of TLR4 Promoter and Its Transcriptional Factor Binding Profile in Relevance to Bovine Subclinical Mastitis. Biochem Genet 2023:10.1007/s10528-023-10578-4. [PMID: 38158465 DOI: 10.1007/s10528-023-10578-4] [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: 06/14/2023] [Accepted: 10/28/2023] [Indexed: 01/03/2024]
Abstract
Bovine mastitis is a complex infectious disease that develops in the mammary gland, predominantly caused by a bacterial infection of mammary tissue. Genetic variability of mastitis is well established and depends upon different quantitative trait loci (QTL) related to mastitis resistance or susceptibility. The susceptibility is often attributed to single-nucleotide polymorphisms (SNPs) in the variable cow breed genomes. Several global investigative attempts have resulted in studies mapping mastitis to the variations in the relevant genes. Reports have been attributed to dramatic genetic expression changes in Toll-Like Receptor 4 (TLR4) genes in mastitis-positive cows. However, the mechanism behind this variable genetic expression of TLR4 genes has been studied poorly. The present study aims to investigate SCM through various screening tests like somatic cell count (SCC), electric conductivity (EC), pH, and California mastitis test (CMT) in milk samples. This study also aims to investigate possible mechanisms behind this variable expression of TLR4 by comparative SNP evaluation and transcriptional factor profile mining. So that the important genetic mutations and effects thereof can be exploited in selecting specific breeds with higher mastitis resistance and milk yield. Seventy Holstein Frisian (HF) crossbred dairy cows were selected in the present study. The animals were screened based on various diagnostic tests (SCC, pH, EC, and CMT). Blood samples (5 mL) were collected for extraction of DNA followed by amplification of PPR1 and PPR2 of the promoter region and 5'UTR of the bovine TLR4 gene using specific primers. Sanger's enzymatic DNA sequencing technique sequenced the amplified PCR products. Further, the identification of SNPs was done through various bioinformatic tools used in this study. The findings of the present study revealed that CMT, EC, pH, and SCC could be used for the early detection of subclinical mastitis. In the present study, a significant increase in the EC, pH, and SCC in milk samples of animals affected with SCM was found in comparison to the healthy animals. The present study also revealed 16 SNPs falling in TLR4 promoter and 5' untranslated region (5'UTR) sequences in mastitis-positive genotypes compared to reference genomes. The study also investigates the potential transcriptional factor program deployed in response to variable mastitis development resistance. In the present study, the allelic and genotype frequencies of all SNP variants in the three regions viz., PPR1, PPR2, and 5'UTR, were the same indicating the absence of heterozygous condition at the respective loci. The present study has wide applicability for researchers developing mastitis-resistant breeding programs and the data generated may aid in the selection of better genetic breeds. The transcription factor binding profiles can serve as concrete leads about the studies on bovine mastitis at the molecular level and may also aid global research groups working on transcription factor (TF)-based molecular pathology of mastitis.
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Affiliation(s)
- Rahil Razak Bhat
- Division of Veterinary Biochemistry FVSc & AH, SKUAST-Kashmir, Shuhama, Alusteng, Srinagar, J&K, 190006, India
| | - Nadiem Nazir Bhat
- Division of Veterinary Biochemistry FVSc & AH, SKUAST-Kashmir, Shuhama, Alusteng, Srinagar, J&K, 190006, India
| | - Ambreen Shabir
- Division of Fish Genetics and Biotechnology, Faculty of Fisheries, SKUAST-Kashmir, Rangil, Ganderbal, J&K, 191201, India
| | - Manzoor Ur Rahman Mir
- Division of Veterinary Biochemistry FVSc & AH, SKUAST-Kashmir, Shuhama, Alusteng, Srinagar, J&K, 190006, India.
| | - Sheikh Bilal Ahmad
- Division of Veterinary Biochemistry FVSc & AH, SKUAST-Kashmir, Shuhama, Alusteng, Srinagar, J&K, 190006, India
| | - Ishraq Hussain
- Division of Veterinary Biochemistry FVSc & AH, SKUAST-Kashmir, Shuhama, Alusteng, Srinagar, J&K, 190006, India
| | - Syed Ashaq Hussain
- Division of Veterinary Clinical Medicine, Ethics and Jurisprudence, FVSc & AH, SKUAST-Kashmir, Shuhama, Alusteng, Srinagar, J&K, 190006, India
| | - Aarif Ali
- Division of Veterinary Biochemistry FVSc & AH, SKUAST-Kashmir, Shuhama, Alusteng, Srinagar, J&K, 190006, India.
| | - Kashif Shamim
- National Centre for Natural Products Research, University of Mississippi, Oxford, MS, 38677, USA
| | - Muneeb U Rehman
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, 11451, Riyadh, Saudi Arabia
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Javed MU, Ijaz M, Durrani AZ, Ali MM. On-farm epidemiology, virulence profiling, and molecular characterization of methicillin-resistant Staphylococcus aureus at goat farms. Microb Pathog 2023; 185:106456. [PMID: 37981077 DOI: 10.1016/j.micpath.2023.106456] [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] [Received: 09/30/2023] [Revised: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 11/21/2023]
Abstract
Antimicrobial resistance (AMR) becomes a challenging issue that limits the therapeutic options for both veterinary and public health professionals. The current study aimed to investigate the on-farm epidemiology, antibiotics resisting profiling, virulence analysis, and molecular detection of methicillin-resistant Staphylococcus aureus (MRSA) at the caprine-human interface. A total of 768 goat milk samples and 94 skin swabs from farm personnel were collected from 30 goat flocks and processed for isolation of S. aureus. The study isolates were confirmed as MRSA based on the oxacillin and cefoxitin disc diffusion test and the presence of mecA gene. MRSA isolates of goats and human origin were characterized and further evaluated for the presence of virulence genes responsible for intramammary infections and public health hazards. The results revealed 26.82 % and 27.79 % goat milk samples and human samples positive for S. aureus, respectively. A higher MRSA prevalence of 35.92 % and 10.71 % was found in goat and human isolates respectively. The phylogenetic analysis revealed a lesser extent of homology in mecA gene of S. aureus isolates at the caprine-human interface. Moreover, this study revealed strong evolutionary connection between the study isolates and MRSA isolates of Pakistani cattle and buffalo while the in-silico protein analysis showed that all sequences have the same protein motifs resembling penicillin binding protein 2a. The risk factors analysis revealed that teat length, drainage system, hygienic measures during milking, use of teat dip, teat injury, and veterinary services were significantly associated with subclinical mastitis in goats. A total of 43.24 % of local MRSA isolates showed multi-drug resistance (MDR). The isolates showed higher resistance to oxytetracycline followed by gentamicin and vancomycin while moxifloxacin, and linezolid were among the susceptible antibiotics. Local MRSA isolates carried virulence markers (nuc and coag genes) and biofilm-associated icaA (43.24 %) and icaD (29.73 %) genes which are responsible for the intramammary infection. The local isolates also carried the virulence genes of public health concern including the enterotoxin C (sec) gene (24.3 %), enterotoxins B (seb) gene (5.41 %), and enterotoxin D (sed) gene (2.7 %). Enterotoxins A (sea) and E (see) genes were not detected in any isolate. The study concluded that MRSA is an emerging and prevailing pathogen in dairy goats with a high potential to transmit to associated human beings. The presence of a variety of virulence factors as well as the associated antibiotic resistance makes MRSA a potential threat at animal-human interface and thus demands further research.
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Affiliation(s)
- Muhammad Umar Javed
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Muhammad Ijaz
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Pakistan.
| | - Aneela Zameer Durrani
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Muhammad Muddassir Ali
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Lahore, Pakistan
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Alessandri G, Sangalli E, Facchi M, Fontana F, Mancabelli L, Donofrio G, Ventura M. Metataxonomic analysis of milk microbiota in the bovine subclinical mastitis. FEMS Microbiol Ecol 2023; 99:fiad136. [PMID: 37880979 DOI: 10.1093/femsec/fiad136] [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] [Received: 05/16/2023] [Revised: 08/04/2023] [Accepted: 10/23/2023] [Indexed: 10/27/2023] Open
Abstract
Subclinical mastitis is one of the most widespread diseases affecting dairy herds with detrimental effects on animal health, milk productivity, and quality. Despite its multifactorial nature, the presence of pathogenic bacteria is regarded one of the main drivers of subclinical mastitis, causing a disruption of the homeostasis of the bovine milk microbial community. However, bovine milk microbiota alterations associated with subclinical mastitis still represents a largely unexplored research area. Therefore, the species-level milk microbiota of a total of 75 milk samples, collected from both healthy and subclinical mastitis-affected cows from two different stables, was deeply profiled through an ITS, rather than a traditional, and less informative, 16S rRNA gene microbial profiling. Surprisingly, the present pilot study not only revealed that subclinical mastitis is characterized by a reduced biodiversity of the bovine milk microbiota, but also that this disease does not induce standard alterations of the milk microbial community across stables. In addition, a flow cytometry-based total bacterial cell enumeration highlighted that subclinical mastitis is accompanied by a significant increment in the number of milk microbial cells. Furthermore, the combination of the metagenomic and flow cytometry approaches allowed to identify different potential microbial marker strictly correlated with subclinical mastitis across stables.
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Affiliation(s)
- Giulia Alessandri
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11a, 43124 Parma, Italy
| | - Elena Sangalli
- Department of Medical-Veterinary Science, University of Parma, Strada del Taglio 10, 43126 Parma, Italy
| | - Mario Facchi
- DVM Bovine Practitioner "Bergamo Veterinari" Group, 24124 Bergamo, Italy
| | - Federico Fontana
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11a, 43124 Parma, Italy
- GenProbio srl, Via Nazario Sauro 3, 43121 Parma, Italy
| | - Leonardo Mancabelli
- Department of Medicine and Surgery, University of Parma, Via Volturno 39, 43125 Parma, Italy
- Microbiome Research Hub, University of Parma, Parco Area delle Scienze 11a, 43124 Parma, Italy
| | - Gaetano Donofrio
- Department of Medical-Veterinary Science, University of Parma, Strada del Taglio 10, 43126 Parma, Italy
| | - Marco Ventura
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11a, 43124 Parma, Italy
- Microbiome Research Hub, University of Parma, Parco Area delle Scienze 11a, 43124 Parma, Italy
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Farag HS, Aly SS, Fahim KM, Fayed AA, Abdelfattah EM, El-Sayed SM, Hegazy YM, ElAshmawy WR. Management Practices of Bovine Mastitis and Milk Quality on Egyptian Dairies. Vet Sci 2023; 10:629. [PMID: 37888581 PMCID: PMC10611314 DOI: 10.3390/vetsci10100629] [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: 09/12/2023] [Revised: 10/08/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023] Open
Abstract
Milk production continues to be the main source of income for dairy producers, and mastitis continues to be the major health challenge for dairy cows worldwide. The objective of the current study was to describe the different management practices implemented in Egyptian dairies, which may influence mastitis and improve milk quality. An in-person survey was completed with herd managers and owners of 20 Egyptian dairies selected using a stratified random sample from four of Egypt's milk sheds. The questionnaire included 80 questions that inquired about herd demographics, mastitis status and control, milking practices, and management practices of the study dairies. Statistical analyses included descriptive statistics, multiple factor analysis (MFA), and hierarchical clustering to identify the important principal components and different dairy clusters. Of the surveyed herds, 69.50% had less than 500 lactating cows, with Holstein as the main cow breed. The reported average milk production on the study herds was 31.1 (SE ± 1.10) Kg/cow/day. Housing of lactating, dry, and close-up cows was in open lots. The majority of the dairies milked cows were three times per day (90.63%), the remaining milked cows four (5.00%) or a mix of four and three times per day. Furthermore, herringbone parlor design was the most common parlor design (66.79%) in the study dairies. The most common disinfectants used for both pre- and post-milking teat dip were iodine-based, 90.0% and 95.0%, respectively, while 52.16% of the dairies reported that their milkers wore gloves during milking. The reported mean annual percentage of mastitis was 52.3%, as a percent of the milking herd. The study dairies reported the inspection of udder health through either visual inspection (95.00%), udder hygiene score (86.88%), teat end score (71.88%), and/or using CMT (54.91%). Contagious mastitis pathogens were reported in 45.2% of the study herds. More than 50% of the study herds relied on importing pregnant cows or pregnant heifers as replacements. Multiple factor analysis identified 20 questions and represented 5 components of variability related to mastitis on dairies. The current survey of Egyptian dairies described the herd demographics and different management practices related to mastitis control and prevention. All the study dairies relied on the blanket intramammary antimicrobial drugs at dry off when current research elsewhere has identified selective dry cow therapy as an integral component of antimicrobial stewardship on dairies. Further research is required to identify the association between different management factors and the occurrence of mastitis.
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Affiliation(s)
- Heba S. Farag
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt; (H.S.F.); (A.A.F.); (S.M.E.-S.); (W.R.E.)
| | - Sharif S. Aly
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
- Veterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California Davis, Tulare, CA 93274, USA;
| | - Karima M. Fahim
- Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt;
| | - Adel A. Fayed
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt; (H.S.F.); (A.A.F.); (S.M.E.-S.); (W.R.E.)
| | - Essam M. Abdelfattah
- Veterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California Davis, Tulare, CA 93274, USA;
- Department of Animal Hygiene, and Veterinary Management, Faculty of Veterinary Medicine, Benha University, Benha 13511, Egypt
| | - Samah M. El-Sayed
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt; (H.S.F.); (A.A.F.); (S.M.E.-S.); (W.R.E.)
| | - Yamen M. Hegazy
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt;
- Department of Clinical Studies, College of Veterinary Medicine, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Wagdy R. ElAshmawy
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt; (H.S.F.); (A.A.F.); (S.M.E.-S.); (W.R.E.)
- Veterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California Davis, Tulare, CA 93274, USA;
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Gunjan, Himanshu, Mukherjee R, Vidic J, Manzano M, Leal E, Raj VS, Pandey RP, Chang CM. Comparative meta-analysis of antimicrobial resistance from different food sources along with one health approach in the Egypt and UK. BMC Microbiol 2023; 23:291. [PMID: 37845637 PMCID: PMC10578024 DOI: 10.1186/s12866-023-03030-5] [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: 08/08/2023] [Accepted: 09/24/2023] [Indexed: 10/18/2023] Open
Abstract
BACKGROUND Antimicrobial resistance (AMR) is a critical global issue that poses significant threats to human health, animal welfare, and the environment. With the increasing emergence of resistant microorganisms, the effectiveness of current antimicrobial medicines against common infections is diminishing. This study aims to conduct a competitive meta-analysis of surveillance data on resistant microorganisms and their antimicrobial resistance patterns in two countries, Egypt and the United Kingdom (UK). METHODS Data for this study were obtained from published reports spanning the period from 2013 to 2022. In Egypt and the UK, a total of 9,751 and 10,602 food samples were analyzed, respectively. Among these samples, 3,205 (32.87%) in Egypt and 4,447 (41.94%) in the UK were found to contain AMR bacteria. RESULTS In Egypt, the predominant resistance was observed against β-lactam and aminoglycosides, while in the United Kingdom, most isolates exhibited resistance to tetracycline and β-lactam. The findings from the analysis underscore the increasing prevalence of AMR in certain microorganisms, raising concerns about the development of multidrug resistance. CONCLUSION This meta-analysis sheds light on the escalating AMR problem associated with certain microorganisms that pose a higher risk of multidrug resistance development. The significance of implementing One Health AMR surveillance is emphasized to bridge knowledge gaps and facilitate accurate AMR risk assessments, ensuring consumer safety. Urgent actions are needed on a global scale to combat AMR and preserve the effectiveness of antimicrobial treatments for the well-being of all living beings.
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Affiliation(s)
- Gunjan
- Graduate Institute of Biomedical Sciences, Chang Gung University, No. 259, Wenhua 1St Road, Guishan Dist, Taoyuan City, 33302, Taiwan
- Master & Ph.D. Program in Biotechnology Industry, Chang Gung University, No. 259, Wenhua 1St Road, Guishan Dist, Taoyuan City, 33302, Taiwan
| | - Himanshu
- Graduate Institute of Biomedical Sciences, Chang Gung University, No. 259, Wenhua 1St Road, Guishan Dist, Taoyuan City, 33302, Taiwan
- Master & Ph.D. Program in Biotechnology Industry, Chang Gung University, No. 259, Wenhua 1St Road, Guishan Dist, Taoyuan City, 33302, Taiwan
| | - Riya Mukherjee
- Graduate Institute of Biomedical Sciences, Chang Gung University, No. 259, Wenhua 1St Road, Guishan Dist, Taoyuan City, 33302, Taiwan
- Master & Ph.D. Program in Biotechnology Industry, Chang Gung University, No. 259, Wenhua 1St Road, Guishan Dist, Taoyuan City, 33302, Taiwan
| | - Jasmina Vidic
- Université Paris-Saclay, Micalis Institute, INRAE, AgroParisTech, 78350, Jouy-en-Josas, France
| | - Marisa Manzano
- Department of Agriculture Food Environmental and Animal Sciences, University of Udine, 33100, Udine, Italy
| | - Elcio Leal
- Laboratório de Diversidade Viral, Instituto de Ciências Biológicas, Universidade Federal Do Pará, Belem, Pará, 66075-000, Brazil
| | - V Samuel Raj
- School of Health Sciences and Technology (SoHST), UPES, Bidholi, Dehradun, 248007, Uttarakhand, India
| | - Ramendra Pati Pandey
- School of Health Sciences and Technology (SoHST), UPES, Bidholi, Dehradun, 248007, Uttarakhand, India.
| | - Chung-Ming Chang
- Master & Ph.D. Program in Biotechnology Industry, Chang Gung University, No. 259, Wenhua 1St Road, Guishan Dist, Taoyuan City, 33302, Taiwan.
- Department of Medical Biotechnology and Laboratory Science, Chang Gung University, No. 259, Wenhua 1St Road, Guishan Dist, Taoyuan City, 33302, Taiwan.
- Laboratory Animal Center, Chang Gung University, No. 259, Wenhua 1St Road, Guishan Dist, Taoyuan City, 33302, Taiwan.
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El-Razik KAA, Arafa AA, Fouad EA, Soror AH, Abdalhamed AM, Elgioushy M. Phenotypic and genotypic characterization of erythromycin-resistant Staphylococcus aureus isolated from bovine subclinical mastitis in Egypt. Vet World 2023; 16:1562-1571. [PMID: 37621528 PMCID: PMC10446729 DOI: 10.14202/vetworld.2023.1562-1571] [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: 03/28/2023] [Accepted: 06/14/2023] [Indexed: 08/26/2023] Open
Abstract
Background and Aim Subclinical mastitis (SCM) caused by erythromycin-resistant Staphylococcus aureus is a significant disease in lactating animals. Therefore, it is crucial to understand the genetic factors contributing to erythromycin resistance in S. aureus. This study aimed to estimate the prevalence of S. aureus in milk from subclinical mastitic cattle and buffaloes and tank milk samples as identified by probe-based real-time polymerase chain reaction (PCR) and the genotypic assessment of macrolide and erythromycin resistance profiles, as well as to analyze the phylogenetic relatedness of our local isolates of S. aureus. Materials and Methods In total, 285 milk samples were analyzed using the California mastitis test to detect SCM. Milk samples were cultured on different specific Staphylococcus media. The presence of S. aureus was confirmed by Gram staining, the catalase and coagulase tests, the detection of hemolytic activity, DNase agar testing, and biofilm activity in Congo red medium. The genotypic identification of S. aureus (nuc) was performed. The determinants of erythromycin (ermA, ermB, ermC, and ermT) and macrolide resistance (msrA) were screened in all isolates. DNA sequencing of our local isolates of S. aureus was used to analyze their phylogenetic relatedness. Moreover, histopathological examination of tissue specimens of mammary gland was performed. Results The S. aureus positivity rates were 36.4%, 48.8%, and 63.6% in cattle, buffalo, and bulk tank milk, respectively. Probe-based real-time PCR molecularly confirmed all 62 S. aureus isolates. Thirty-one isolates were subjected to PCR to create profiles of their genotypic erythromycin resistance. ermA, ermB, ermC, and ermT were present in 5 (8%), 26 (41.9%), 18 (29%), and 15 (24.1%) S. aureus isolates, respectively. Moreover, msrA was found in three (4.8%) strains. Eight PCR products were produced using standard PCR for DNA sequencing. Multiple sequence alignment, phylogenetic tree construction, and analysis of nuc in S. aureus revealed a high degree of homology (100%) with S. aureus strains isolated from milk in cases of bovine mastitis in India and Kenya. Histological analysis of udder tissues revealed extensive aggregation of mononuclear inflammatory cells in the interstitial connective tissue, primarily lymphocytes, and macrophages. Conclusion This study showed a high prevalence of erythromycin resistance in S. aureus isolates. This information is vital for controlling mastitis and the spread of resistance genes between bacterial strains and hosts. Moreover, the probe-based real-time PCR approach is helpful for the rapid screening of S. aureus isolates and the consequent efficient treatment and control of S. aureus mastitis.
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Affiliation(s)
| | - Amany A. Arafa
- Department of Microbiology and Immunology, National Research Centre, Dokki, Egypt
| | - Ehab A. Fouad
- Department of Zoonosis, National Research Centre, Dokki, Egypt
| | - Ashraf H. Soror
- Department of Animal Reproduction, National Research Centre, Dokki, Egypt
| | - Abeer M. Abdalhamed
- Department of Parasitology and Animal Diseases, National Research Centre, Dokki, Egypt
| | - Magdy Elgioushy
- Department of Animal Medicine, Faculty of Veterinary Medicine, Aswan University, Egypt
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11
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My TT, Thien LV, Manh VD, My BTP, Lan DTM, Binh DX, Duc VM. Antimicrobial resistance and molecular characterization of Escherichia coli isolated from bovine mastitis samples in Nghe An province, Vietnam. Vet World 2023; 16:743-751. [PMID: 37235152 PMCID: PMC10206968 DOI: 10.14202/vetworld.2023.743-751] [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: 01/13/2023] [Accepted: 03/06/2023] [Indexed: 05/28/2023] Open
Abstract
Background and Aim Vietnam's dairy sector is in its early phase of large-scale farming development. Therefore, mastitis in cows is always a concern to farm owners. This study aimed to determine the antimicrobial susceptibility, resistance, and virulence-related genes of Escherichia coli isolated from bovine mastitis in Nghe An province of Vietnam. Materials and Methods Fifty E. coli strains were isolated from the clinical cases and subjected to this study. All isolates were tested for antimicrobial susceptibility by the disk-diffusion method, as described by the Clinical and Laboratory Standards Institute. Antimicrobial and virulence genes were confirmed by polymerase chain reaction with specific primers. Results All isolates were resistant to lincomycin and sulfamethoxazole and sensitive to gentamicin, while other antimicrobials showed resistance from 2% to 90%. Multidrug resistance was confirmed in 46% of isolates, and none of them were identified as extended-spectrum beta-lactamase producers. From fifty strains tested for antimicrobial and virulence genes, six isolates harbored tetA, 6 tetB, 13 sul1, 15 sul2, 2 Intimin (eae), 1 iutA, and 3 stx2. Conclusion Antimicrobial and multidrug resistances are the main virulence factors of E. coli isolated from bovine mastitis in Vietnam. The virulence genes encoding adhesion, siderophore, Shiga-toxin-producing, and antimicrobials resistant were first reported in Vietnam with low prevalence and contributed to the pathogenesis.
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Affiliation(s)
- Tran Trung My
- Department of Animal Science and Veterinary Medicine, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen University, Quyet Thang, Thai Nguyen City, Vietnam
- Department of Quality Assurance, TH Dairy Institute, Nghia Son, Nghia Dan, Nghe An, Vietnam
| | - Le Van Thien
- Department of Quality Assurance, TH Dairy Institute, Nghia Son, Nghia Dan, Nghe An, Vietnam
- Department of Veterinary Medicine, The Vietnam National University of Agriculture, Trau Quy, Gia Lam, Ha Noi, Vietnam
| | - Vu Duy Manh
- TH Milk Food Joint Stock Company, Nghia Son, Nghia Dan, Nghe An, Vietnam
| | - Bui Thi Phuong My
- TH Milk Food Joint Stock Company, Nghia Son, Nghia Dan, Nghe An, Vietnam
| | - Dang Thi Mai Lan
- Department of Animal Science and Veterinary Medicine, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen University, Quyet Thang, Thai Nguyen City, Vietnam
| | - Dang Xuan Binh
- Department of Animal Science and Veterinary Medicine, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen University, Quyet Thang, Thai Nguyen City, Vietnam
| | - Vu Minh Duc
- Department of Agro-forestry Technology, College of Economics and Technology, Thai Nguyen University, Thinh Dan, Thai Nguyen City, Vietnam
- Laboratory of Veterinary Public Health, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
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12
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Farag MA, Ashaolu TJ, Guirguis H, Khalifa I. Implementation of HACCP in the production of Egyptian cheeses: A review. EFOOD 2023. [DOI: 10.1002/efd2.69] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023] Open
Affiliation(s)
- Mohamed A. Farag
- Pharmacognosy Department, College of Pharmacy Cairo University Cairo Egypt
| | | | - Hania Guirguis
- Pharmacognosy Department, College of Pharmacy Cairo University Cairo Egypt
| | - Ibrahim Khalifa
- Food Technology Department, Faculty of Agriculture Benha University Moshtohor Egypt
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13
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Tran MT, Vu DM, Vu MD, Bui MTP, Dang BX, Dang LTM, Le TV. Antimicrobial resistance and molecular characterization of Klebsiella species causing bovine mastitis in Nghe An province, Vietnam. J Adv Vet Anim Res 2023; 10:132-143. [PMID: 37155534 PMCID: PMC10122941 DOI: 10.5455/javar.2023.j662] [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: 01/13/2023] [Revised: 02/08/2023] [Accepted: 02/23/2023] [Indexed: 05/10/2023] Open
Abstract
Objectives This study aimed to determine the antibiotic-resistant profile and to identify molecular characterization of some virulence genes of Klebsiella spp. isolated from mastitis samples in Vietnam. Materials and Method A total of 468 samples from clinical mastitis cases were collected and submitted to the Laboratory. All samples were cultured, and Klebsiella spp. was identified through biochemical reactions and confirmed by Polymerase chain reaction (PCR). Antimicrobial resistance was tested by disk diffusion method, and virulence and resistance genes were tested by PCR. Results An antibiogram study showed that a high proportion of isolates are multidrug-resistant (94%). All isolates were resistant to lincomycin and sulfamethoxazole, followed by ampicillin (94%), sulphonamide (66%), amoxicillin (56%), streptomycin (52%), polymyxin B (28%), colistin sulfate (12%), tetracycline (6%), ciprofloxacin (4%), florfenicol (4%), enrofloxacin (4%), piperacillin (2%), trimethoprim (2%), nalidixic acid (2%), imipenem (2%), and sulfamethoxazole/trimethoprim (2%). In contrast, all isolates showed sensitivity to gentamicin and ceftiofur. The appearance of an efflux pump system, extended-spectrum beta-lactamase (ESBL), tetracycline, and sulphonamides-resistant genes was reconfirmed using different specific primers. Capsular serotype K1 and virulence genes magA, fimH, and entB, responsible for hypermucoviscosity production, adherence, and enterobactin production, were confirmed in isolates. Multidrug resistance and virulence potential in Klebsiella spp. are changing this mastitis pathogen into a superbug and making its management harder. Conclusions Klebsiella spp. associated with bovine mastitis in Nghe An province were mostly multidrug-resistant and carried virulence genes including fimH, entB, and antimicrobials resistant genes (bla SHV, acrAKp, tetA, etc.), but these isolates were not ESBL producers.
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Affiliation(s)
- My Trung Tran
- Thai Nguyen University of Agriculture and Forestry, Thai Nguyen University, Thai Nguyen, Vietnam
| | - Duc Minh Vu
- College of Economics and Technology, Thai Nguyen University, Thai Nguyen, Vietnam
| | - Manh Duy Vu
- TH Milk Food Joint Stock Company, Nghia Son, Nghia Dan, Vietnam
| | | | - Binh Xuan Dang
- Thai Nguyen University of Agriculture and Forestry, Thai Nguyen University, Thai Nguyen, Vietnam
| | - Lan Thi Mai Dang
- Thai Nguyen University of Agriculture and Forestry, Thai Nguyen University, Thai Nguyen, Vietnam
| | - Thien Van Le
- Vietnam National University of Agriculture, Ha Noi, Vietnam
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14
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Kovačević Z, Mihajlović J, Mugoša S, Horvat O, Tomanić D, Kladar N, Samardžija M. Pharmacoeconomic Analysis of the Different Therapeutic Approaches in Control of Bovine Mastitis: Phytotherapy and Antimicrobial Treatment. Antibiotics (Basel) 2022; 12:antibiotics12010011. [PMID: 36671213 PMCID: PMC9854675 DOI: 10.3390/antibiotics12010011] [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: 12/01/2022] [Revised: 12/17/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
Mastitis in dairy cows is responsible for major economic losses on dairy farms worldwide as the most expensive and prevalent disease in dairy cattle. In spite of the fact that antibiotic therapy still remains the main treatment strategy for bovine mastitis, concerns about the shortcomings of this treatment approach are continuously raised. Hence, research on alternative treatments with increased effectiveness and reduced costs is needed. Therefore, we conducted a pharmacoeconomic analysis of conventional antibiotic vs. a proposed Phyto-Bomat treatment based on essential oils in bovine mastitis therapy. Treatments were compared from the farmer's perspective in the domain of costs (expressed in total, direct and indirect, cost differences) and effectiveness (expressed in daily milk yield differences). Economic calculations were based on data from a dairy farm in Serbia. The average cost of conventional antibiotic treatment was estimated at EUR 80.32 consisting of therapy costs, veterinary services and milk rejection costs at EUR 16.54, EUR 17.68 and EUR 46.10, respectively. The average cost of Phyto-Bomat treatment was estimated at EUR 76.34 with therapy costs of EUR 34.34, veterinary costs of EUR 32.00 and rejection of milk costs of only EUR 10.00. Therefore, Phyto-Bomat results in cost savings approximating EUR 4 per each mastitis episode with the highest cost reductions obtained in milk rejection costs. This estimation of Phyto-Bomat's economic benefits could be used as a starting point for the inclusion of this formulation as an alternative treatment approach with a focus on subclinical mastitis since it contributes to most of the financial losses.
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Affiliation(s)
- Zorana Kovačević
- Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovica 8, 21000 Novi Sad, Serbia
- Correspondence:
| | - Jovan Mihajlović
- Mihajlović Health Analytics (MiHA), Omladinskih radnih akcija 54, 21000 Novi Sad, Serbia
- University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
- Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
| | - Snežana Mugoša
- Faculty of Medicine, University of Montenegro, Krusevac bb, 81000 Podgorica, Montenegro
- Institute for Medicine and Medical Devices of Montenegro, Bulevar Ivana Crnojevića 64a, 81000 Podgorica, Montenegro
| | - Olga Horvat
- Department of Pharmacology and Toxicology, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
| | - Dragana Tomanić
- Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovica 8, 21000 Novi Sad, Serbia
| | - Nebojša Kladar
- Center for Medical and Pharmaceutical Investigations and Quality Control, Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia
| | - Marko Samardžija
- Clinic for Reproduction and Obstetrics, Veterinary Faculty, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
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Ocloo R, Nyasinga J, Munshi Z, Hamdy A, Marciniak T, Soundararajan M, Newton-Foot M, Ziebuhr W, Shittu A, Revathi G, Abouelfetouh A, Whitelaw A. Epidemiology and antimicrobial resistance of staphylococci other than Staphylococcus aureus from domestic animals and livestock in Africa: a systematic review. Front Vet Sci 2022; 9:1059054. [PMID: 36583033 PMCID: PMC9792789 DOI: 10.3389/fvets.2022.1059054] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/16/2022] [Indexed: 12/14/2022] Open
Abstract
Introduction Staphylococci other than Staphylococcus aureus (SOSA) in animals are becoming more pathogenic and antibiotic resistant and can potentially disseminate to humans. However, there is little synthesized information regarding SOSA from animals in Africa. This systematic review provides a comprehensive overview of the epidemiology and antimicrobial resistance of SOSA in companion animals (pets) and livestock in Africa. Method This systematic review (PROSPERO-CRD42021252303) was conducted according to the PRISMA guidelines, and 75 eligible studies from 13 countries were identified until August 2022. Three electronic databases (Pubmed, Scopus and Web of Science) were employed. Results The frequently isolated SOSA were S. epidermidis, S. intermedius, S. pseudintermedius, S. xylosus, S. chromogenes, S. hyicus, M. sciuri, S. hominis, and S. haemolyticus. Thirty (40%) studies performed antibiotic susceptibility testing (AST). Penicillin (58%) and tetracycline (28%) resistance were most common across all SOSA with high rates of resistance to aminoglycosides, fluoroquinolones, and macrolides in some species. Resistance to last-resort antibiotics such as linezolid and fusidic acid were also reported. Limited data on strain typing and molecular resistance mechanisms precluded analysis of the clonal diversity of SOSA on the continent. Conclusion The findings of this review indicate that research on livestock-associated SOSA in Africa is lacking in some regions such as Central and Western Africa, furthermore, research on companion animals and more advanced methods for identification and strain typing of SOSA need to be encouraged. Systematic review registration https://www.crd.york.ac.uk/prospero/, identifier: CRD42021252303.
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Affiliation(s)
- Remous Ocloo
- Division of Medical Microbiology and Immunology, Stellenbosch University, Stellenbosch, South Africa
| | - Justin Nyasinga
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
- Institute of Science, Technology and Innovation, Pan African University, Nairobi, Kenya
- Department of Biomedical Sciences and Technology, The Technical University of Kenya, Nairobi, Kenya
| | - Zubair Munshi
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
| | - Aisha Hamdy
- Department of Microbiology and Immunology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Tessa Marciniak
- Institute for Molecular Infection Biology, University of Wuerzburg, Wuerzburg, Germany
| | | | - Mae Newton-Foot
- Division of Medical Microbiology and Immunology, Stellenbosch University, Stellenbosch, South Africa
- National Health Laboratory Service, Tygerberg Hospital, Cape Town, South Africa
| | - Wilma Ziebuhr
- Institute for Molecular Infection Biology, University of Wuerzburg, Wuerzburg, Germany
| | - Adebayo Shittu
- Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Gunturu Revathi
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
| | - Alaa Abouelfetouh
- Department of Microbiology and Immunology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
- Department of Microbiology and Immunology, Faculty of Pharmacy, Alamein International University, Alamein, Egypt
| | - Andrew Whitelaw
- Division of Medical Microbiology and Immunology, Stellenbosch University, Stellenbosch, South Africa
- National Health Laboratory Service, Tygerberg Hospital, Cape Town, South Africa
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Kovačević Z, Tomanić D, Čabarkapa I, Šarić L, Stanojević J, Bijelić K, Galić I, Ružić Z, Erdeljan M, Kladar N. Chemical Composition, Antimicrobial Activity, and Withdrawal Period of Essential Oil-Based Pharmaceutical Formulation in Bovine Mastitis Treatment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192416643. [PMID: 36554523 PMCID: PMC9779522 DOI: 10.3390/ijerph192416643] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/05/2022] [Accepted: 12/07/2022] [Indexed: 05/14/2023]
Abstract
Due to the emergence of antibiotic-resistant bacteria, the risk it represents to public health, and the possible consequences for animal health and welfare, there is an increasing focus on reducing antimicrobial usage (AMU) in animal husbandry. Therefore, a great interest in developing alternatives to AMU in livestock production is present worldwide. Recently, essential oils (EOs) have gained great attention as promising possibilities for the replacement of antibiotics. The current study aimed to test the potential of using a novel EO-based pharmaceutical formulation (Phyto-Bomat) in bovine mastitis treatment. The antibacterial activity was performed using the microdilution technique. Lactating dairy cows were treated with 15 mL of Phyto-Bomat in the inflamed quarter for 5 consecutive days in order to analyze blood and milk samples for thymol and carvacrol residues using gas chromatography and mass spectrometry (GC-MS). Antimicrobial activity expressed as the minimum inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) indicates that this formulation has the highest activity against Gram-positive strains. The dominant compounds in Phyto-Bomat were thymol and carvacrol, at 12.58 ± 1.23 mg/mL and 23.11 ± 2.31 mg/mL, respectively. The quantification of these two compounds in evaluated biological samples showed that 24 h after administration the concentration of thymol and carvacrol in milk samples was at the same level as before application. On the other hand, thymol and carvacrol were detectable in plasma samples even after 24 h post-treatment, with values ranging from 0.15-0.38 and 0.21-0.66 µg/mL, respectively. The tested formulation showed encouraging results of antibacterial activity against bovine mastitis pathogens, as well as the withdrawal period of dominant compounds, which implies that further testing regarding the bacteriological and clinical cure rates in clinical settings is needed.
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Affiliation(s)
- Zorana Kovačević
- Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia
| | - Dragana Tomanić
- Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia
| | - Ivana Čabarkapa
- Institute of Food Technology, University of Novi Sad, 21000 Novi Sad, Serbia
| | - Ljubiša Šarić
- Institute of Food Technology, University of Novi Sad, 21000 Novi Sad, Serbia
| | - Jovan Stanojević
- Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia
| | - Katarina Bijelić
- Center for Medical and Pharmaceutical Investigations and Quality Control, Department of Pharmacy, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia
| | - Ivan Galić
- Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia
| | - Zoran Ružić
- Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia
| | - Mihajlo Erdeljan
- Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia
- Correspondence:
| | - Nebojša Kladar
- Center for Medical and Pharmaceutical Investigations and Quality Control, Department of Pharmacy, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia
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Environmental Bovine Mastitis Pathogens: Prevalence, Antimicrobial Susceptibility, and Sensitivity to Thymus vulgaris L., Thymus serpyllum L., and Origanum vulgare L. Essential Oils. Antibiotics (Basel) 2022; 11:antibiotics11081077. [PMID: 36009946 PMCID: PMC9405213 DOI: 10.3390/antibiotics11081077] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/27/2022] [Accepted: 08/05/2022] [Indexed: 11/16/2022] Open
Abstract
Mastitis is considered to be one of the most important diseases of dairy cows in terms of health, production, and economy. Being the most common cause of antibiotic consumption in dairy cows, treatment of this disease is one of the biggest challenges in the veterinary profession as an increasing number of pathogens develop resistance to antibiotics used in the treatment. Therefore, new alternative approaches for limiting the use of antibiotics in livestock are required. For this reason, our study aimed to investigate prevalence of environmental mastitis associated bacterial strains, as well as the sensitivity of isolated strains to different antibiotics. Additionally, the therapeutic potential of three essential oils (EOs) was tested against bovine Serratia spp. and Proteus spp. mastitis pathogens, based on their chemical composition, as well as antibacterial potential. The study was carried out on 81 milk samples collected from dairy cows with mastitis. In order to determine prevalence of S. marcescens and P. mirabilis, microbiological isolation and identification were performed. Antimicrobial susceptibility testing was performed by disk diffusion method and the microdilution method was used to determine the antibacterial activity of selected EOs. In the oregano EO, a total of 23 compounds were detected, with carvacrol as a dominant component (78.94%). A total of 26 components were present in the EO of common thyme, where thymol was the most abundant compound (46.37%). Thymol also dominated (55.11%) the wild thyme EO. All tested EOs displayed antibacterial activity against all strains to different extents, while wild and common thyme EOs were the most effective. It could be concluded that the tested EOs represent promising therapeutic candidates for effective non-antibiotic treatment of mastitis.
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Yang J, Hu QC, Wang JP, Ren QQ, Wang XP, Luoreng ZM, Wei DW, Ma Y. RNA-Seq Reveals the Role of miR-29c in Regulating Inflammation and Oxidative Stress of Bovine Mammary Epithelial Cells. Front Vet Sci 2022; 9:865415. [PMID: 35433915 PMCID: PMC9011060 DOI: 10.3389/fvets.2022.865415] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 02/22/2022] [Indexed: 12/20/2022] Open
Abstract
Healthy mammary gland is essential for milk performance in dairy cows. MicroRNAs (miRNAs) are the key molecules to regulate the steady state of mammary gland in dairy cows. This study investigated the potential role of miR-29c in bovine mammary epithelial cells (bMECs). RNA sequencing (RNA-seq) was used to measure the transcriptome profile of bovine mammary epithelial cells line (MAC-T) transfected with miR-29c inhibitor or negative control (NC) inhibitor, and then differentially expressed genes (DEGs) were screened. The results showed that a total of 42 up-regulated and 27 down-regulated genes were found in the miR-29c inhibitor group compared with the NC inhibitor group. The functional enrichment of the above DEGs indicates that miR-29c is a potential regulator of oxidative stress and inflammatory response in bMECs through multiple genes, such as forkhead box O1 (FOXO1), tumor necrosis factor-alpha (TNF-α), and major histocompatibility complex, class II, DQ alpha 5 (BoLA-DQA5) in the various biological process and signaling pathways of stress-activated mitogen-activated protein kinase (MAPK) cascade, Epstein-Barr virus infection, inflammatory bowel disease, etc. The results imply that miR-29c plays an important role in a steady state of bMECs or cow mammary gland and may be a potential therapeutic target for mastitis in dairy cows.
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Affiliation(s)
- Jian Yang
- School of Agriculture, Ningxia University, Yinchuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
| | - Qi-Chao Hu
- School of Agriculture, Ningxia University, Yinchuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
| | - Jin-Peng Wang
- School of Agriculture, Ningxia University, Yinchuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
| | - Qian-Qian Ren
- School of Agriculture, Ningxia University, Yinchuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
| | - Xing-Ping Wang
- School of Agriculture, Ningxia University, Yinchuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
- *Correspondence: Xing-Ping Wang
| | - Zhuo-Ma Luoreng
- School of Agriculture, Ningxia University, Yinchuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
- Zhuo-Ma Luoreng
| | - Da-Wei Wei
- School of Agriculture, Ningxia University, Yinchuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
| | - Yun Ma
- School of Agriculture, Ningxia University, Yinchuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
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19
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Saleem HD, Razooqi MA, Gharban HAJ. Cumulative Effect of Subclinical Mastitis on Immunological and Biochemical Parameters in Cow Milk. ARCHIVES OF RAZI INSTITUTE 2021; 76:1629-1638. [PMID: 35546972 PMCID: PMC9083874 DOI: 10.22092/ari.2021.356311.1819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 10/21/2021] [Indexed: 06/15/2023]
Abstract
Mastitis is a complex and multifactorial disease that leads to chemical, physical, and bacteriological changes in milk, which is associated with great economic losses. This study was carried out on lactating cows to investigate the effect of subclinical mastitis (SCM) on milk production through the estimation of immunological and biochemical characteristics of milk. Therefore, a total of 200 apparently-healthy lactating cows were randomly selected from different areas in Baghdad and Maysan provinces in Iraq from April to July 2021, and 100 ml of fresh milk was directly collected from each cow. Milk samples were examined by the California mastitis test (CMT), and IgG concentration in milk was estimated by the ELISA method. Moreover, the changes in biochemical parameters and enzymatic parameters were analyzed to determine the prevalence of SCM. Based on the results of the CMT test, the prevalence of SCM was 41.5% with a significant increase in a mild degree of severity (61.45%). IgG antibodies increased significantly in positive cows (4.92± 0.21 µg/ml). Significant prevalence of infection was observed among cows ≥5 years old compared to those <5 years, crossbred ones compared to natives, and those with lower milk production without udder/milk abnormalities, compared to cows with normal milk production. However, a significant difference was observed between the two regions under investigation (i.e., Baghdad and Maysan provinces of Iraq). Results of biochemical and enzymatic parameters showed significant increases in the concentration of Cl, FFA, and Na, and a reduction in LAC and TP, though not in Ca and K. The pH of mastitis milk was significantly higher. Although no significant difference was observed in the values of ALT and LDH, AST was increased in mastitis milk. In conclusion, this study is one of the first reports on the estimated concentration of IgG in mastitis milk samples in Iraq. Increases in the concentration of SSCs and IgG in milk can apply to the detection of intra-mammary infections.
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Affiliation(s)
- H D Saleem
- Department of Density, Al-Manara College of Medical Sciences, Al-Manara, Iraq
| | - M A Razooqi
- Department of Veterinary Public Health, College of Veterinary Medicine, University of Baghdad, Iraq
| | - H A J Gharban
- Department of Internal and Preventive Veterinary Medicine, College of Veterinary Medicine, University of Wasit, Wasit, Iraq
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20
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El-Zamkan MA, Mohamed HMA. Antimicrobial resistance, virulence genes and biofilm formation in Enterococcus species isolated from milk of sheep and goat with subclinical mastitis. PLoS One 2021; 16:e0259584. [PMID: 34780540 PMCID: PMC8592430 DOI: 10.1371/journal.pone.0259584] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 10/21/2021] [Indexed: 01/09/2023] Open
Abstract
This study is designed to discuss the antimicrobial resistance, virulence determinants and biofilm formation capacity of Enterococcus spp. isolated from milk of sheep and goat with subclinical mastitis in Qena, Egypt. The obtained isolates were identified by the VITEK2 system and 16S rDNA sequencing as E. faecalis, E. faecium, E. casseliflavus and E. hirae. Overall, E. faecalis and E. faecium were the dominant species recovered from mastitic milk samples. The antimicrobial susceptibility test evidenced multidrug resistance of the isolates against the following antimicrobials: oxacillin (89.2.%), followed by vancomycin (75.7%) and linezolid (70.3%). Also, most of these isolates (73%) could form biofilms. For example, 18.9% of Enterococcus strains formed strong biofilm, whereas 32.4% of isolates formed moderate biofilm and 21.6% of isolates formed weak biofilm. The most prevalent resistance genes found in our isolates were blaZ (54%), vanA (40%), ermB (51.4%), tetM (13.5%) and optrA (10.8%). Moreover, asa1 (37.8%), cylA (42.3%), gelE (78.4%), esp (32.4%), EF3314(48.6%) and ace (75.5%) were the most common virulence genes. A significant correlation was found between biofilm formation, multidrug resistance and virulence genes of the isolates. This study highlights several aspects of virulence and harmfulness of Enterococcus strains isolated from subclinical mastitic milk, which necessitates continuous inspection and monitoring of dairy animals.
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Affiliation(s)
- Mona A. El-Zamkan
- Faculty of Veterinary Medicine, Department of Food Hygiene and Control, South Valley University, Qena, Egypt
- * E-mail:
| | - Hams M. A. Mohamed
- Faculty of Veterinary Medicine, Department of Microbiology, South Valley University, Qena, Egypt
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21
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Abed AH, Hegazy EF, Omar SA, Abd El-Baky RM, El-Beih AA, Al-Emam A, Menshawy AMS, Khalifa E. Carvacrol Essential Oil: A Natural Antibiotic against Zoonotic Multidrug-Resistant Staphylococcus Species Isolated from Diseased Livestock and Humans. Antibiotics (Basel) 2021; 10:1328. [PMID: 34827266 PMCID: PMC8614821 DOI: 10.3390/antibiotics10111328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 01/09/2023] Open
Abstract
Staphylococcus species cause diseases in animals and humans. The prevalence and antimicrobial profiles of Staphylococcus spp. in animals and human samples in the Minya Governorate, Egypt, were determined, and resistance- and virulence-associated genes were observed in multidrug-resistant (MDR) isolates. Moreover, the antibacterial effect of carvacrol essential oil (EO) on the MDR isolates was studied. A total of 216 samples were aseptically collected from subclinically mastitic cow's milk (n = 100), sheep abscesses (n = 25) and humans (n = 91). Out of 216 samples, a total of 154 single Staphylococcus species (71.3%) were isolated. The most frequent bacterial isolates were S. aureus (43%), followed by S. schleiferi (25%), S. intermedius (12%), S. xylosus (12%), S. haemolyticus (4.5%), S. epidermidis (2%) and S. aurecularis (1%). Haemolytic activity and biofilm production were detected in 77 and 47% of isolates, respectively. Antimicrobial susceptibility testing showed a high degree of resistance to the most commonly used antimicrobials in human and veterinary practices. The mecA, vanA, vanC1 and ermC resistance genes were detected in 93, 42, 83 and 13% of isolates, respectively. Moreover, hla, icaA and icaD virulence genes were detected in 50, 75 and 78% of isolates, respectively. Carvacrol effectively inhibited the growth of all tested isolates at concentrations of 0.1, 0.05 and 0.04% while a concentration of 0.03% inhibited 75% of isolates. Interestingly, some phenotypic changes were observed upon treatment with a carvacrol oil concentration of 0.03%. All the treated MDR Staphylococcus isolates changed from multidrug resistant to either susceptible or intermediately susceptible to 2-3 antimicrobials more than parental bacterial isolates. Real-time PCR was applied for the detection of the differential expression of mecA and vanC1 genes before and after treatment with carvacrol which revealed a mild reduction in both genes' expression after treatment. Staphylococcus spp. Containing MDR genes are more likely to spread between humans and animals. From these results, carvacrol EO is a promising natural alternative to conventional antimicrobials for pathogens impacting human health and agriculture due to its potential antimicrobial effect on MDR pathogens; even in sub-lethal doses, carvacrol EO can affect their phenotypic properties and genes' expression.
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Affiliation(s)
- Ahmed H. Abed
- Bacteriology, Mycology and Immunology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt;
| | - Esraa F. Hegazy
- Bacteriology, Mycology and Immunology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt;
| | - Sherif A. Omar
- Microbiology Department, Faculty of Veterinary Medicine, Cairo University, Cairo 12211, Egypt;
| | - Rehab M. Abd El-Baky
- Department of Microbiology and Immunology, Faculty of Pharmacy, Deraya University, Minia 11566, Egypt;
- Department of Microbiology and Immunology, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
| | - Ahmed A. El-Beih
- Chemistry of Natural & Microbial Products Department, National Research Centre, Dokki, Giza 12622, Egypt
| | - Ahmed Al-Emam
- Department of Pathology, College of Medicine, King Khalid University, Abha 61421, Saudi Arabia;
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Ahmed M. S. Menshawy
- Department of Veterinary Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt; or
| | - Eman Khalifa
- Department of Microbiology, Faculty of Veterinary Medicine, Matrouh University, Matrouh 51511, Egypt;
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