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Wheat W, Chow L, Still-Brooks K, Moore-Foster R, Herman J, Hunter R, Garry F, Dow S. Immune modulatory effects of tulathromycin, gamithromycin, and oxytetracycline in cattle. BMC Vet Res 2024; 20:456. [PMID: 39385141 PMCID: PMC11462805 DOI: 10.1186/s12917-024-04254-x] [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: 02/06/2024] [Accepted: 08/28/2024] [Indexed: 10/11/2024] Open
Abstract
Certain classes of antibiotics, including tetracyclines and macrolides, are known to exert immune suppressive effects in other species but the immune modulatory effects of these antibiotics have not been previously studied in cattle. To address this question, we investigated the effects of oxytetracycline, gamithromycin, and tulathromycin on T cell and macrophage responses to activation, using in vitro assays. In addition, we assessed the impact of these antibiotics on T cell responses in vivo following treatment of healthy cattle with currently recommended doses of each of the three antibiotics. We found that all 3 antibiotics markedly suppressed T cell proliferation in vitro at relevant therapeutic drug concentrations and significantly suppressed macrophage activation responses to LPS. In cattle treated with a single dose of each antibiotic, we observed significant suppression of T cell proliferation and cytokine production beginning as early as 6 h after administration, with increasing immune suppression observed at 48 h. Taken together, these results indicate that commonly used antibiotics in cattle exert significant immune modulatory activity, in addition to their antimicrobial activity. These off-target effects should be considered when using antibiotics for prophylaxis or metaphylaxis in high-risk dairy or beef cattle (192 words).
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Affiliation(s)
- W Wheat
- Center for Immune Regenerative Medicine, Department of Clinical Sciences, and, Microbiology, College of Veterinary Medicine and Biomedical Sciences, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA.
| | - L Chow
- Center for Immune Regenerative Medicine, Department of Clinical Sciences, and, Microbiology, College of Veterinary Medicine and Biomedical Sciences, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | - K Still-Brooks
- Center for Immune Regenerative Medicine, Department of Clinical Sciences, and, Microbiology, College of Veterinary Medicine and Biomedical Sciences, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | - R Moore-Foster
- Center for Immune Regenerative Medicine, Department of Clinical Sciences, and, Microbiology, College of Veterinary Medicine and Biomedical Sciences, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | - J Herman
- Center for Immune Regenerative Medicine, Department of Clinical Sciences, and, Microbiology, College of Veterinary Medicine and Biomedical Sciences, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | - R Hunter
- Hunter Cattle Co, Wheatland, WY, USA
| | - F Garry
- Center for Immune Regenerative Medicine, Department of Clinical Sciences, and, Microbiology, College of Veterinary Medicine and Biomedical Sciences, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | - S Dow
- Center for Immune Regenerative Medicine, Department of Clinical Sciences, and, Microbiology, College of Veterinary Medicine and Biomedical Sciences, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA.
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2
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Peng C, Yang L, Labens R, Gao Y, Zhu Y, Li J. A systematic review and meta-analysis of the efficacy of platelet-rich plasma products for treatment of equine joint disease. Equine Vet J 2024; 56:858-869. [PMID: 38185481 DOI: 10.1111/evj.14042] [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: 05/14/2023] [Accepted: 11/25/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND Equine joint disease including septic arthritis (SA) and osteoarthritis (OA) is a critical cause of equine lameness. Platelet-rich plasma (PRP) is one of the most popular regenerative therapies to treat equine OA, even SA, but the evidence in support of the treatment is conflicting. OBJECTIVES The aim of the study was to systematically review the current evidence on PRP products used for SA and OA, as well as the efficacy of PRP products as treatment for OA on the basis of a meta-analysis of the available literature. STUDY DESIGN Systematic review and meta-analysis. METHODS A systematic search of relevant databases (PubMed, Web of Science, Scopus) was performed to identify studies published from 2013 to 2023, in accordance with the PRISMA guidelines. Randomised controlled trials, non-randomised trials and controlled laboratory studies that used at least one type of PRP products were included. Dichotomous outcomes were presented using odds ratios (ORs) and 95% confidence intervals (95% CIs). RESULTS A total of 21 publications were identified in the systematic review and 5 of them in the meta-analysis. These publications involved various types of PRP products and reported different outcomes. Although most of the studies were associated with a high risk of bias, the overall estimated effect was consistent with a significant improvement in the PRP products treatment group compared with the control group (OR: 15.32; 95% CI: 3.00-78.15; p < 0.05). There was a significant improvement in clinical performance outcomes between the groups (OR: 36.64; 95% CI: 3.69-364.30; p < 0.05). CONCLUSION PRP products as intra-articular treatment are likely efficacious for treatment of equine OA and have potential for treating SA. These conclusions might be affected by the limited number of randomised controlled studies and high variability of different types of PRP products. To better evaluate the efficacy of PRP, a widely recognised classification system and the utilisation of randomised, blinded, equivalency or non-inferiority trials are required.
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Affiliation(s)
- Cong Peng
- Equine Clinical Diagnostic Center, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Luo Yang
- Equine Clinical Diagnostic Center, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Raphael Labens
- School of Agricultural, Environmental and Veterinary Sciences, Charles Sturt University, Bathurst, New South Wales, Australia
| | - Yu Gao
- University of Veterinary Medicine Hannover, Hanover, Lower Saxony, Germany
| | - Yiping Zhu
- Equine Clinical Diagnostic Center, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jing Li
- Equine Clinical Diagnostic Center, College of Veterinary Medicine, China Agricultural University, Beijing, China
- China Agricultural University Veterinary Teaching Hospital, Beijing, China
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3
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Wang CL, Li P, Liu B, Ma YQ, Feng JX, Xu YN, Liu L, Li ZH. Decrypting the skeletal toxicity of vertebrates caused by environmental pollutants from an evolutionary perspective: From fish to mammals. ENVIRONMENTAL RESEARCH 2024; 255:119173. [PMID: 38763280 DOI: 10.1016/j.envres.2024.119173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 05/09/2024] [Accepted: 05/16/2024] [Indexed: 05/21/2024]
Abstract
The rapid development of modern society has led to an increasing severity in the generation of new pollutants and the significant emission of old pollutants, exerting considerable pressure on the ecological environment and posing a serious threat to both biological survival and human health. The skeletal system, as a vital supportive structure and functional unit in organisms, is pivotal in maintaining body shape, safeguarding internal organs, storing minerals, and facilitating blood cell production. Although previous studies have uncovered the toxic effects of pollutants on vertebrate skeletal systems, there is a lack of comprehensive literature reviews in this field. Hence, this paper systematically summarizes the toxic effects and mechanisms of environmental pollutants on the skeletons of vertebrates based on the evolutionary context from fish to mammals. Our findings reveal that current research mainly focuses on fish and mammals, and the identified impact mechanisms mainly involve the regulation of bone signaling pathways, oxidative stress response, endocrine system disorders, and immune system dysfunction. This study aims to provide a comprehensive and systematic understanding of research on skeletal toxicity, while also promoting further research and development in related fields.
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Affiliation(s)
- Cun-Long Wang
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Ping Li
- Marine College, Shandong University, Weihai, Shandong, 264209, China.
| | - Bin Liu
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Yu-Qing Ma
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Jian-Xue Feng
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Ya-Nan Xu
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Ling Liu
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Zhi-Hua Li
- Marine College, Shandong University, Weihai, Shandong, 264209, China.
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4
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James S, Daffy J, Cook J, Samiric T. Short-Term Exposure to Ciprofloxacin Reduces Proteoglycan Loss in Tendon Explants. Genes (Basel) 2022; 13:genes13122210. [PMID: 36553476 PMCID: PMC9777606 DOI: 10.3390/genes13122210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022] Open
Abstract
Fluoroquinolone antibiotics are associated with increased risk of tendinopathy and tendon rupture, which can occur well after cessation of treatment. We have previously reported that the fluoroquinolone ciprofloxacin (CPX) reduced proteoglycan synthesis in equine tendon explants. This study aimed to determine the effects of CPX on proteoglycan catabolism and whether any observed effects are reversible. Equine superficial digital flexor tendon explant cultures were treated for 4 days with 1, 10, 100 or 300 µg/mL CPX followed by 8 days without CPX. The loss of [35S]-labelled proteoglycans and chemical pool of aggrecan and versican was studied as well as the gene expression levels of matrix-degrading enzymes responsible for proteoglycan catabolism. CPX suppressed [35S]-labelled proteoglycan and total aggrecan loss from the explants, although not in a dose-dependent manner, which coincided with downregulation of mRNA expression of MMP-9, -13, ADAMTS-4, -5. The suppressed loss of proteoglycans was reversed upon removal of the fluoroquinolone with concurrent recovery of MMP and ADAMTS mRNA expression, and downregulated TIMP-2 and upregulated TIMP-1 expression. No changes in MMP-3 expression by CPX was observed at any stage. These findings suggest that CPX suppresses proteoglycan catabolism in tendon, and this is partially attributable to downregulation of matrix-degrading enzymes.
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Affiliation(s)
- Stuart James
- Department of Microbiology, Anatomy, Physiology and Pharmacology, La Trobe University, Melbourne, VIC 3086, Australia
| | - John Daffy
- Department of Infectious Diseases, St Vincent’s Hospital, Melbourne, VIC 3065, Australia
| | - Jill Cook
- Sports and Exercise Medicine Research Centre, La Trobe University, Melbourne, VIC 3086, Australia
| | - Tom Samiric
- Department of Microbiology, Anatomy, Physiology and Pharmacology, La Trobe University, Melbourne, VIC 3086, Australia
- Correspondence:
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5
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Golestani S, Golestaneh A, Gohari AA. Comparative effects of systemic administration of levofloxacin and cephalexin on fracture healing in rats. J Korean Assoc Oral Maxillofac Surg 2022; 48:94-100. [PMID: 35491140 PMCID: PMC9065642 DOI: 10.5125/jkaoms.2022.48.2.94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 03/02/2022] [Accepted: 03/15/2022] [Indexed: 11/25/2022] Open
Abstract
Objectives This study aimed to compare the effects of systemic administration of levofloxacin or cephalexin on fracture healing in rats. Materials and Methods In this animal study, tibial fractures not requiring fixation were artificially induced in 30 male Wistar albino rats using a 1.1 mm surgical bur. The rats were randomly divided into 6 groups (n=5). Groups 1 and 2 received daily subcutaneous saline injections. Groups 3 and 4 received subcutaneous injections of 25 mg/kg levofloxacin twice daily. Groups 5 and 6 received daily subcutaneous injections of 20 mg/kg cephalexin. The rats in Groups 1, 3, and 5 were sacrificed after 1 week, while the rats in Groups 2, 4, and 6 were sacrificed after 4 weeks. The score of fracture healing was determined through histological assessment of sections from the fracture site according to Perry and colleagues. Data were analyzed by Kruskal-Wallis and Mann-Whitney tests. Results The mean score of fracture healing at 4 weeks was significantly higher than that at 1 week in the saline, levofloxacin, and cephalexin groups (P<0.001). At 1 week, no significant difference was noted among the three groups of saline, levofloxacin, and cephalexin in the mean score of fracture healing (P=0.360). However, this difference was significant at 4 weeks (P=0.018), and the mean score in the saline group was significantly higher compared to that in the levofloxacin group (P=0.015). Conclusion It is recommended not to prescribe levofloxacin for more than 1 week after surgical management of bone fractures due to its possible adverse effects on fracture healing.
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Affiliation(s)
- Shayan Golestani
- Department of Oral and Maxillofacial Surgery, Dental School, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran
| | - Arash Golestaneh
- Department of Oral and Maxillofacial Surgery, Dental School, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran
| | - Atousa Aminzadeh Gohari
- Department of Oral Pathology, Dental School, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran
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6
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Enrofloxacin—The Ruthless Killer of Eukaryotic Cells or the Last Hope in the Fight against Bacterial Infections? Int J Mol Sci 2022; 23:ijms23073648. [PMID: 35409007 PMCID: PMC8998546 DOI: 10.3390/ijms23073648] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/22/2022] [Accepted: 03/24/2022] [Indexed: 01/18/2023] Open
Abstract
Enrofloxacin is a compound that originates from a group of fluoroquinolones that is widely used in veterinary medicine as an antibacterial agent (this antibiotic is not approved for use as a drug in humans). It reveals strong antibiotic activity against both Gram-positive and Gram-negative bacteria, mainly due to the inhibition of bacterial gyrase and topoisomerase IV enzymatic actions. The high efficacy of this molecule has been demonstrated in the treatment of various animals on farms and other locations. However, the use of enrofloxacin causes severe adverse effects, including skeletal, reproductive, immune, and digestive disorders. In this review article, we present in detail and discuss the advantageous and disadvantageous properties of enrofloxacin, showing the benefits and risks of the use of this compound in veterinary medicine. Animal health and the environmental effects of this stable antibiotic (with half-life as long as 3–9 years in various natural environments) are analyzed, as are the interesting properties of this molecule that are expressed when present in complexes with metals. Recommendations for further research on enrofloxacin are also proposed.
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7
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Dorph K, Haughan J, Robinson M, Redding LE. Critically important antimicrobials are frequently used on equine racetracks. J Am Vet Med Assoc 2022; 260:774-779. [PMID: 35239509 DOI: 10.2460/javma.22.01.0022] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To characterize antimicrobial use on four racetracks in the eastern US during the peak racing 2017-2018 seasons. PROCEDURES Handwritten daily treatment sheets provided by attending veterinarians who listed treatments administered to horses stabled at the racetrack were obtained. Information contained in the treatment sheets included the date, name of the horse and its trainer, type of treatment, and a brief (usually 1-word) indication for treatment. The handwritten data listed on the racetrack treatment sheets were manually transcribed and analyzed. RESULTS A total of 2,684 antimicrobial prescriptions were recorded, representing 6.8% of all drug treatments. The most frequently prescribed antimicrobials were enrofloxacin, with 854 prescriptions (31.8% of antimicrobial treatments), followed by gentamicin (570 [21.2%] prescriptions), ceftiofur (388 [14.5%] prescriptions,), and penicillin (220 [8.2%] prescriptions). The relative frequencies of antimicrobial class and indication for treatment varied significantly by racetrack and by prescribing veterinarian. Limitations associated with the data precluded ascertainment of the proportion of horses treated or exact indications for treatment. CLINICAL RELEVANCE Antimicrobials appeared to be prescribed relatively infrequently at racetracks relative to other drugs, but highly or critically important antimicrobials were most often used. The appropriateness of use of these drugs remains unknown.
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8
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James S, Schuijers J, Daffy J, Cook J, Samiric T. Ciprofloxacin reduces tenocyte viability and proteoglycan synthesis in short-term explant cultures of equine tendon. PeerJ 2021; 9:e12003. [PMID: 34540363 PMCID: PMC8411937 DOI: 10.7717/peerj.12003] [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: 03/17/2021] [Accepted: 07/27/2021] [Indexed: 11/20/2022] Open
Abstract
Fluoroquinolones are an effective, broad-spectrum antibiotic used to treat an array of bacterial infections. However, they are associated with an increased risk of tendinopathy and tendon rupture even after discontinuation of treatment. This condition is known as fluoroquinolone-associated tendinopathy, the underlying mechanisms of which are poorly understood. While many factors may be involved in the pathophysiology of tendinopathies in general, changes in tenocyte metabolism and viability, as well as alteration of proteoglycan metabolism are prominent findings in the scientific literature. This study investigated the effects of ciprofloxacin, a common fluoroquinolone, on cell viability, proteoglycan synthesis, and proteoglycan mRNA expression in equine superficial digital flexor tendon explants after 96 h treatment with between 1–300 µg/mL ciprofloxacin, and again after 8 days discontinuation of treatment. Ciprofloxacin caused significant reductions in cell viability by between 25–33% at all dosages except 10 µg/mL, and viability decreased further after 8 days discontinuation of treatment. Proteoglycan synthesis significantly decreased by approximately 50% in explants treated with 100 µg/mL and 300 µg/mL, however this effect reversed after 8 days in the absence of treatment. No significant mRNA expression changes were observed after the treatment period with the exception of versican which was down-regulated at the highest concentration of ciprofloxacin. After the recovery period, aggrecan, biglycan and versican genes were all significantly downregulated in explants initially treated with 1–100 µg/mL. Results from this study corroborate previously reported findings of reduced cell viability and proteoglycan synthesis in a whole tissue explant model and provide further insight into the mechanisms underlying fluoroquinolone-associated tendinopathy and rupture. This study further demonstrates that certain ciprofloxacin induced cellular changes are not rapidly reversed upon cessation of treatment which is a novel finding in the literature.
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Affiliation(s)
- Stuart James
- Department of Physiology, Anatomy, and Microbiology, La Trobe University, Melbourne, Victoria, Australia
| | - Johannes Schuijers
- Department of Physiology, Anatomy, and Microbiology, La Trobe University, Melbourne, Victoria, Australia
| | - John Daffy
- Department of Infectious Diseases, St. Vincent's Hospital, Melbourne, Victoria, Australia
| | - Jill Cook
- Sports and Exercise Medicine Research Centre, La Trobe University, Melbourne, Victoria, Australia
| | - Tom Samiric
- Department of Physiology, Anatomy, and Microbiology, La Trobe University, Melbourne, Victoria, Australia
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9
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Pezzanite LM, Hendrickson DA, Dow S, Stoneback J, Chow L, Krause D, Goodrich L. Intra-articular administration of antibiotics in horses: Justifications, risks, reconsideration of use and outcomes. Equine Vet J 2021; 54:24-38. [PMID: 34459027 DOI: 10.1111/evj.13502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 07/02/2021] [Accepted: 08/26/2021] [Indexed: 12/11/2022]
Abstract
Antibiotics have been injected intra-articularly by equine veterinarians for decades, either prophylactically when other drugs are administered for osteoarthritis or therapeutically to treat septic arthritis. This route of administration has also more recently gained attention in human orthopaedic clinical practice, particularly as an alternative to systemic antibiotic administration to treat infections following prosthetic arthroplasty. While the rationale for injecting antibiotics intra-articularly has been largely focused on achieving high local drug concentrations, there has been relatively little focus on pharmacokinetic parameters of antibiotics administered by this route, or on the potential for local toxicity. The increasing incidence of antibiotic resistance in veterinary and human medicine prompts reconsideration of off-label antibiotic usage and evaluation of evidence-based dosing strategies. The purpose of this review was to summarise the current literature describing intra-articular antibiotic usage, including specific studies where pharmacokinetics, potential safety and toxicity have been evaluated. This review will advance practitioners' understanding of the use of intra-articularly administered antibiotics, including the overall pros and cons of the approach.
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Affiliation(s)
- Lynn M Pezzanite
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Dean A Hendrickson
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Steven Dow
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA.,Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Jason Stoneback
- Department of Orthopedic Surgery, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Lyndah Chow
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Danielle Krause
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Laurie Goodrich
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
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10
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Abstract
Fluoroquinolones (FQs) are a broad class of antibiotics typically prescribed for bacterial infections, including infections for which their use is discouraged. The FDA has proposed the existence of a permanent disability (Fluoroquinolone Associated Disability; FQAD), which is yet to be formally recognized. Previous studies suggest that FQs act as selective GABAA receptor inhibitors, preventing the binding of GABA in the central nervous system. GABA is a key regulator of the vagus nerve, involved in the control of gastrointestinal (GI) function. Indeed, GABA is released from the Nucleus of the Tractus Solitarius (NTS) to the Dorsal Motor Nucleus of the vagus (DMV) to tonically regulate vagal activity. The purpose of this review is to summarize the current knowledge on FQs in the context of the vagus nerve and examine how these drugs could lead to dysregulated signaling to the GI tract. Since there is sufficient evidence to suggest that GABA transmission is hindered by FQs, it is reasonable to postulate that the vagal circuit could be compromised at the NTS-DMV synapse after FQ use, possibly leading to the development of permanent GI disorders in FQAD.
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11
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Pezzanite L, Chow L, Hendrickson D, Gustafson DL, Russell Moore A, Stoneback J, Griffenhagen GM, Piquini G, Phillips J, Lunghofer P, Dow S, Goodrich LR. Evaluation of Intra-Articular Amikacin Administration in an Equine Non-inflammatory Joint Model to Identify Effective Bactericidal Concentrations While Minimizing Cytotoxicity. Front Vet Sci 2021; 8:676774. [PMID: 34095281 PMCID: PMC8175670 DOI: 10.3389/fvets.2021.676774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 04/06/2021] [Indexed: 11/13/2022] Open
Abstract
Septic arthritis causes significant morbidity and mortality in veterinary and human clinical practice and is increasingly complicated by multidrug-resistant infections. Intra-articular (IA) antibiotic administration achieves high local drug concentrations but is considered off-label usage, and appropriate doses have not been defined. Using an equine joint model, we investigated the effects of amikacin injected at three different doses (500, 125, and 31.25 mg) on the immune and cartilage responses in tibiotarsal joints. Synovial fluid (SF) was sampled at multiple time points over 24 h, the cell counts determined, and amikacin concentrations measured by liquid chromatography-mass spectrometry. Cytokine concentrations and collagen degradation products in SF were measured by ELISA and multiplex immunoassays. The mean amikacin concentrations in SF were greater than or equal to the minimum inhibitory concentration (MIC) (0.004 mg/ml) for most common equine joint pathogens at all time points tested to 24 h for all three amikacin doses evaluated. The inflammatory cytokines tumor necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β) increased significantly in SF in the highest amikacin dose group, despite the fact that increases in SF cell counts were not observed. Similarly, the biomarkers of cartilage type II collagen cleavage (C2C and C12C) were increased in SF following amikacin injection. Mechanistically, we further demonstrated using in vitro studies that chondrocytes and synoviocytes killed by exposure to amikacin underwent apoptotic cell death and were phagocytosed by macrophages in a non-inflammatory process resembling efferocytosis. Neutrophils and T cells were susceptible to amikacin cytotoxicity at clinically relevant doses, which may result in blunting of cellular inflammatory responses in SF and account for the lack of increase in total nucleated cell counts following amikacin injection. In summary, decisions on whether to inject cytotoxic antibiotics such as aminoglycosides intra-articularly and what doses to use should take into account the potential harm that antibiotics may cause and consider lower doses than those previously reported in equine practice.
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Affiliation(s)
- Lynn Pezzanite
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Lyndah Chow
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Dean Hendrickson
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Daniel L Gustafson
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - A Russell Moore
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Jason Stoneback
- Department of Orthopedic Surgery, University of Colorado School of Medicine, Aurora, CO, United States
| | - Gregg M Griffenhagen
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Gabriella Piquini
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Jennifer Phillips
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Paul Lunghofer
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Steven Dow
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States.,Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Laurie R Goodrich
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
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12
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Ellerbrock RE, Canisso IF, Larsen RJ, Garrett KS, Stewart MC, Herzog KK, Kersh ME, Moshage SG, Podico G, Lima FS, Childs BA. Fluoroquinolone exposure in utero did not affect articular cartilage of resulting foals. Equine Vet J 2020; 53:385-396. [PMID: 32479667 DOI: 10.1111/evj.13295] [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: 11/13/2019] [Revised: 04/16/2020] [Accepted: 05/10/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Recent studies have shown that fluoroquinolones, specifically, enrofloxacin and its active metabolite (ciprofloxacin), cross the equine placenta without causing gross or histological lesions in the first and third trimester fetuses or resulting foal. However, it is possible that in utero exposure to fluoroquinolones may cause subtle lesions not detectable by standard means; thus, a more in-depth assessment of potential toxicity is warranted. OBJECTIVES To use quantitative magnetic resonance imaging (qMRI), biomechanical testing, and chondrocyte gene expression to evaluate the limbs of foals exposed to enrofloxacin during the third trimester of pregnancy. STUDY DESIGN In vivo and control terminal experiment. METHODS Healthy mares at 280 days gestation were assigned into three groups: untreated (n = 5), recommended therapeutic (7.5 mg/kg enrofloxacin, PO, SID, n = 6) or supratherapeutic (15 mg/kg, PO, SID, n = 6) doses for 14 days. Mares carried and delivered to term and nursed their foals for ~30 days. Two additional healthy foals born from untreated mares were treated post-natally with enrofloxacin (10 mg/kg PO, SID, for 5 days). By 30 days, foal stifles, hocks, elbows, and shoulders were radiographed, foals were subjected to euthanasia, and foal limbs were analysed by quantitative MRI, structural MRI, biomechanical testing and chondrocyte gene expression. RESULTS Osteochondral lesions were detected with both radiography and structural MRI in foals from both enrofloxacin-treated and untreated mares. Severe cartilage erosions, synovitis and joint capsular thickening were identified in foals treated with enrofloxacin post-natally. Median cartilage T2 relaxation times differed between joints but did not differ between treatment groups. MAIN LIMITATIONS A small sample size was assessed and there was no long-term follow-up. CONCLUSION While further research is needed to address long-term foal outcomes, no differences were seen in advanced imaging, biomechanical testing or gene expression by 30 days of age, suggesting that enrofloxacin may be a safe and useful antibiotic for select bacterial infections in pregnant mares.
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Affiliation(s)
- Robyn E Ellerbrock
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, IL, USA.,Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Igor F Canisso
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, IL, USA.,Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Ryan J Larsen
- Beckman Institute, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | | | - Matthew C Stewart
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Kalyn K Herzog
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, IL, USA.,Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Mariana E Kersh
- Department of Mechanical Science and Engineering, College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Sara G Moshage
- Department of Mechanical Science and Engineering, College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Giorgia Podico
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, IL, USA.,Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Fabio S Lima
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Bronwen A Childs
- Department of Small Animal Medicine, College of Veterinary Medicine, Athens, GA, USA
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13
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Pezzanite L, Chow L, Piquini G, Griffenhagen G, Ramirez D, Dow S, Goodrich L. Use of in vitro assays to identify antibiotics that are cytotoxic to normal equine chondrocytes and synovial cells. Equine Vet J 2020; 53:579-589. [PMID: 32544273 DOI: 10.1111/evj.13314] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 05/20/2020] [Accepted: 05/25/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Intra-articular (IA) antibiotic usage is prevalent in equine practice. However, recent emergence of antimicrobial resistance prompts re-evaluation of antibiotic selection, particularly when used prophylactically. Furthermore, many commonly used antibiotics exert direct cytotoxicity to equine cells, and appropriate IA doses have not been defined. OBJECTIVES To screen antibiotics in vitro as an initial assessment of cytotoxicity against normal equine joint cells in monolayer culture and explant tissues. STUDY DESIGN In vitro experimental study. METHODS Chondrocytes and synovial cells were harvested from three horses and plated on 24-well plates (100 000 cells/wells in triplicate) for 48 hours prior to addition of antibiotics. Joint cells were exposed to antibiotics (n = 15) at various doses (25-0.39 mg/mL in complete DMEM media) for 24 hours and viability was assessed by trypan blue dye exclusion. The half maximal inhibitory concentration (IC50) was determined for each antibiotic. Cartilage explants were obtained from 3 horses, minced and exposed to antibiotics (n = 5) for 72 hours. Live/dead staining was performed, and fluorescence was visualised using Olympus IX83 spinning disk confocal microscope. Percentage of live vs dead cells was quantified. RESULTS Antibiotics from different antimicrobial classes expressed dose-dependent but variable cytotoxicity to equine joint cells in vitro. Aminoglycosides and doxycycline had the lowest IC50 (most toxic). Ampicillin sulbactam, imipenem, tobramycin, ceftiofur sodium and amoxicillin had IC50 > 25 mg/mL for at least one cell line, representing potentially less cytotoxic alternatives. MAIN LIMITATIONS Further studies are necessary to extrapolate these in vitro data results to the in vivo joint environment. CONCLUSIONS Targeted IA antibiotic therapy would involve selection of the safest antibiotics (highest IC50) with efficacy based on bacterial culture/sensitivity. Antimicrobial selection and evidence-based dosing may minimise damage to native articular cartilage and synovial cells and development of antimicrobial resistance when IA antibiotics are used in equine practice.
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Affiliation(s)
- Lynn Pezzanite
- Translational Medicine Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Lyndah Chow
- Translational Medicine Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Gabriella Piquini
- Translational Medicine Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Gregg Griffenhagen
- Translational Medicine Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Dominique Ramirez
- Translational Medicine Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Steven Dow
- Translational Medicine Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Laurie Goodrich
- Translational Medicine Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
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Popowski E, Kohl B, Schneider T, Jankowski J, Schulze-Tanzil G. Uremic Toxins and Ciprofloxacin Affect Human Tenocytes In Vitro. Int J Mol Sci 2020; 21:ijms21124241. [PMID: 32545914 PMCID: PMC7353042 DOI: 10.3390/ijms21124241] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 12/19/2022] Open
Abstract
Tendinopathy is a rare but serious complication of quinolone therapy. Risk factors associated with quinolone-induced tendon disorders include chronic kidney disease accompanied by the accumulation of uremic toxins. Hence, the present study explored the effects of the representative uremic toxins phenylacetic acid (PAA) and quinolinic acid (QA), both alone and in combination with ciprofloxacin (CPX), on human tenocytes in vitro. Tenocytes incubated with uremic toxins +/- CPX were investigated for metabolic activity, vitality, expression of the dominant extracellular tendon matrix (ECM) protein type I collagen, cell-matrix receptor β1-integrin, proinflammatory interleukin (IL)-1β, and the ECM-degrading enzyme matrix metalloproteinase (MMP)-1. CPX, when administered at high concentrations (100 mM), suppressed tenocyte metabolism after 8 h exposure and at therapeutic concentrations after 72 h exposure. PAA reduced tenocyte metabolism only after 72 h exposure to very high doses and when combined with CPX. QA, when administered alone, led to scarcely any cytotoxic effect. Combinations of CPX with PAA or QA did not cause greater cytotoxicity than incubation with CPX alone. Gene expression of the pro-inflammatory cytokine IL-1β was reduced by CPX but up-regulated by PAA and QA. Protein levels of type I collagen decreased in response to high CPX doses, whereas PAA and QA did not affect its synthesis significantly. MMP-1 mRNA levels were increased by CPX. This effect became more pronounced in the form of a synergism following exposure to a combination of CPX and PAA. CPX was more tenotoxic than the uremic toxins PAA and QA, which showed only distinct suppressive effects.
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Affiliation(s)
- Erman Popowski
- Department of Traumatology and Reconstructive Surgery, Campus Benjamin Franklin, Charité–Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Hindenburgdamm 30, 12203 Berlin, Germany; (E.P.); (B.K.); (T.S.)
| | - Benjamin Kohl
- Department of Traumatology and Reconstructive Surgery, Campus Benjamin Franklin, Charité–Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Hindenburgdamm 30, 12203 Berlin, Germany; (E.P.); (B.K.); (T.S.)
| | - Tobias Schneider
- Department of Traumatology and Reconstructive Surgery, Campus Benjamin Franklin, Charité–Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Hindenburgdamm 30, 12203 Berlin, Germany; (E.P.); (B.K.); (T.S.)
- Institute of Anatomy, Paracelsus Private Medical University, Nuremberg and Salzburg, Nuremberg, Prof. Ernst Nathan Str. 1, 90419 Nuremberg, Germany
| | - Joachim Jankowski
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany;
- Experimental Vascular Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 HX Maastricht, The Netherlands
| | - Gundula Schulze-Tanzil
- Experimental Vascular Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 HX Maastricht, The Netherlands
- Correspondence: ; Tel.: +49-(0)911-398-6772
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15
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Wong DM. Clinical insights: Recent development in equine neonatology and foal medicine (2017-2019). Equine Vet J 2020; 52:7-10. [PMID: 31821613 DOI: 10.1111/evj.13200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- D M Wong
- Department of Large Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic and State University, Blacksburg, Virginia, USA
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Ellerbrock RE, Canisso IF, Podico G, Roady PJ, Uhl E, Lima FS, Li Z. Diffusion of fluoroquinolones into equine fetal fluids did not induce fetal lesions after enrofloxacin treatment in early gestation. Vet J 2019; 253:105376. [PMID: 31685134 DOI: 10.1016/j.tvjl.2019.105376] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 09/04/2019] [Accepted: 09/04/2019] [Indexed: 01/01/2023]
Abstract
While recent work demonstrated that enrofloxacin and ciprofloxacin reach the fetoplacental unit without causing obvious lesions in the 9-month-old equine fetus or resulting foal, many practitioners still hesitate to prescribe a fluoroquinolone during pregnancy. Since early gestation is a critical time for fetal skeletal development, if fluoroquinolones are chondrotoxic to the fetus at any point during gestation, this period would be important. The aim of this study was to assess the effects of 2 weeks' exposure to enrofloxacin on the equine fetus between 46 and 60 days gestation. Twelve pregnancies from nine healthy mares were allocated into two groups: untreated (n=7), or treatment (7.5mg/kg enrofloxacin, PO×14days, n=6). Abortion was induced with prostaglandin 24h after the last enrofloxacin dose, or on the equivalent day of gestation for untreated mares. Four of nine mares were rebred for a second cycle and were assigned to the opposite treatment to serve as their own controls. Fetal fluids from treated mares were analysed for enrofloxacin and ciprofloxacin concentrations. Fetal organs (heart, lungs, spleen, kidney, and liver) and limbs were examined histopathologically. Enrofloxacin and ciprofloxacin diffused to the fetal fluids during early gestation and did not result in detectable abnormalities in the fetus after 14 days of treatment. While current research does not determine long-term foal outcomes, enrofloxacin may be useful for select bacterial infections in pregnant mares.
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Affiliation(s)
- R E Ellerbrock
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA; Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - I F Canisso
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA; Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA.
| | - G Podico
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - P J Roady
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA; Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - E Uhl
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - F S Lima
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA; Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Z Li
- Roy J. Carver Biotechnology Center, University of Illinois Urbana-Champaign, Urbana, IL, USA
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17
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Ellerbrock RE, Canisso IF, Roady PJ, Rothrock LT, Zhong L, Wilkins P, Dirikolu L, Lima FS, Honoroto J. Diffusion of enrofloxacin to pregnancy fluids and effects on fetal cartilage after intravenous administration to late pregnant mares. Equine Vet J 2019; 51:544-551. [PMID: 30449030 DOI: 10.1111/evj.13044] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 11/12/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND In selective cases, enrofloxacin may be an alternative antibacterial agent to treat unresponsive infections in pregnant mares. Supratherapeutic doses of enrofloxacin are toxic to adult horses and also to newborn foals, however, it is unknown if enrofloxacin crosses the equine placenta or if it is toxic to the fetus. OBJECTIVES To assess the diffusion of enrofloxacin and its metabolite to fetal fluids and its effects on fetal cartilage when administered to pregnant mares. STUDY DESIGN In vivo and terminal controlled experiment. METHODS Healthy mares at 260 days of gestation were allocated into three groups: untreated (n = 3), therapeutic treatment (5 mg/kg enrofloxacin, i.v., n = 7) or supratherapeutic treatment (10 mg/kg, i.v., n = 6) for 11 days. Fetal fluids were collected on days 1, 5 and 11 of treatment. Premature delivery was induced on day 11 with oxytocin and fetal fluids and plasma were collected during delivery. Plasma and fetal fluid enrofloxacin and ciprofloxacin concentrations were measured by liquid chromatography-mass spectrometry. Fetal articular cartilage was examined macroscopically and histologically for lesions. RESULTS Enrofloxacin and ciprofloxacin reached the minimum inhibitory concentrations for common pathogens in all fluids. Ciprofloxacin did not increase with the double enrofloxacin dose in maternal plasma, but allantoic fluid showed a 10-fold increase relative to fetal trough plasma concentrations. Administration of enrofloxacin at recommended doses did not result in cartilaginous lesions in fetuses. MAIN LIMITATIONS Only one time point in gestation was evaluated and mares treated in the study were healthy at the time of treatment. It remains to be determined if enrofloxacin shows toxicity at other stages of pregnancy, after a longer duration of treatment, or once the foals are delivered and articular surfaces are weightbearing. CONCLUSIONS Short-term administration of enrofloxacin to late gestation mares resulted in detectable enrofloxacin and ciprofloxacin concentrations in fetal fluids and did not result in macroscopic or microscopic lesions in the fetus. While further research is needed to address long-term foal outcomes, enrofloxacin may be useful for select bacterial infections in pregnant mares.
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Affiliation(s)
- R E Ellerbrock
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, Illinois, USA.,Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, Illinois, USA
| | - I F Canisso
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, Illinois, USA
| | - P J Roady
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, Illinois, USA
| | - L T Rothrock
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, Illinois, USA
| | - L Zhong
- Roy J. Carver Biotechnology Center, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - P Wilkins
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, Illinois, USA
| | - L Dirikolu
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, Illinois, USA
| | - F S Lima
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, Illinois, USA
| | - J Honoroto
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, Illinois, USA
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18
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A retrospective analysis of adverse effects of an in vivo fluoroquinolone antibiotic enrofloxacin treatment on oocyte quality in the common marmoset. Reprod Toxicol 2018; 75:86-95. [DOI: 10.1016/j.reprotox.2017.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Revised: 12/01/2017] [Accepted: 12/12/2017] [Indexed: 11/18/2022]
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Treatment of the Fluoroquinolone-Associated Disability: The Pathobiochemical Implications. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:8023935. [PMID: 29147464 PMCID: PMC5632915 DOI: 10.1155/2017/8023935] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 08/20/2017] [Indexed: 12/24/2022]
Abstract
Long-term fluoroquinolone-associated disability (FQAD) after fluoroquinolone (FQ) antibiotic therapy appears in recent years as a significant medical and social problem, because patients suffer for many years after prescribed antimicrobial FQ treatment from tiredness, concentration problems, neuropathies, tendinopathies, and other symptoms. The knowledge about the molecular activity of FQs in the cells remains unclear in many details. The effective treatment of this chronic state remains difficult and not effective. The current paper reviews the pathobiochemical properties of FQs, hints the directions for further research, and reviews the research concerning the proposed treatment of patients. Based on the analysis of literature, the main directions of possible effective treatment of FQAD are proposed: (a) reduction of the oxidative stress, (b) restoring reduced mitochondrion potential ΔΨm, (c) supplementation of uni- and bivalent cations that are chelated by FQs and probably ineffectively transported to the cell (caution must be paid to Fe and Cu because they may generate Fenton reaction), (d) stimulating the mitochondrial proliferation, (e) removing FQs permanently accumulated in the cells (if this phenomenon takes place), and (f) regulating the disturbed gene expression and enzyme activity.
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20
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Affiliation(s)
- S. D. White
- Department of Medicine and Epidemiology; School of Veterinary Medicine; University of California; Davis USA
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21
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PARKER RA, CLEGG PD, TAYLOR SE. The in vitro effects of antibiotics on cell viability and gene expression of equine bone marrow-derived mesenchymal stromal cells. Equine Vet J 2011; 44:355-60. [DOI: 10.1111/j.2042-3306.2011.00437.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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The effects of enrofloxacin on canine tendon cells and chondrocytes proliferation in vitro. Vet Res Commun 2007; 32:243-53. [DOI: 10.1007/s11259-007-9024-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2007] [Accepted: 10/16/2007] [Indexed: 11/27/2022]
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Lugo J, Gaughan EM. Septic Arthritis, Tenosynovitis, and Infections of Hoof Structures. Vet Clin North Am Equine Pract 2006; 22:363-88, viii. [PMID: 16882480 DOI: 10.1016/j.cveq.2006.03.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Infectious diseases of synovial and hoof structures in horses can be devastating to soundness and can result in life-threatening complications. Timely diagnosis and early aggressive treatment can result in successful outcomes and resumption of athletic careers; however, delays in recognition and therapy can be the most costly reasons for failure. Sterilization of affected compartments and tissues requires removal of microorganisms and compromised tissue. Debridement, lavage, and appropriate antimicrobial drug use are the most reliable avenues of treatment. Antimicrobial drugs can be administered by local, regional, and systemic routes. Lavage techniques and debridement typically require surgical manipulations.
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Affiliation(s)
- Joel Lugo
- J.T. Vaughan Large Animal Hospital, Department of Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA
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Steinman A, Britzi M, Levi O, Lavy E, Lichter A, Soback S. Lack of effect of diet on the pharmacokinetics of enrofloxacin in horses. J Vet Pharmacol Ther 2006; 29:67-70. [PMID: 16420305 DOI: 10.1111/j.1365-2885.2006.00717.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- A Steinman
- Koret School of Veterinary Medicine, Faculty of Agricultural, Food and Environmental Quality Sciences, The Hebrew University of Jerusalem, Rehovot, Israel.
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26
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Hackett TB, Lehman TL. Practical considerations in emergency drug therapy. Vet Clin North Am Small Anim Pract 2005; 35:517-25, viii. [PMID: 15698922 DOI: 10.1016/j.cvsm.2004.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Drug therapy is integral to emergency and critical care medicine but can also be the source of serious medical errors. There are important considerations with regard to drug, route, and interactions that require close attention in critical patients. The continuous development of new therapeutics and new information concerning current therapies requires practitioners to continually review drug therapies. This article addresses general guidelines, routes of administration, dosage calculations, interactions, monitoring recommendations, and resources available to help clinicians improve their drug therapy practices.
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Affiliation(s)
- Tim B Hackett
- Department of Clinical Sciences and Critical Care Unit, Veterinary Teaching Hospital, Colorado State University, Fort Collins, CO 80523, USA.
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Park SN, Kim JK, Suh H. Evaluation of antibiotic-loaded collagen-hyaluronic acid matrix as a skin substitute. Biomaterials 2004; 25:3689-98. [PMID: 15020144 DOI: 10.1016/j.biomaterials.2003.10.072] [Citation(s) in RCA: 113] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2003] [Accepted: 10/10/2003] [Indexed: 11/29/2022]
Abstract
The 1-ethyl-(3-3-dimethylaminopropyl) carbodiimide hydrochloride-crosslinked collagen-hyaluronic acid (HA) matrices containing tobramycin or ciprofloxacin as an antibiotic agent were fabricated for the control of wound contamination and characterized with respect to morphology, mechanical strength, in vitro release, antibacterial activity and cytotoxicity. For the tobramycin loaded matrix, the antibacterial capacity increased with the drug loading. Tobramycin and ciprofloxacin loaded matrices maintained their antibacterial effects for over 96 and 48 h, respectively. However, cell viability testing revealed that 0.4 mg/ml of ciprofloxacin has a cytotoxic effect on fetal human dermal fibroblasts. The effects of the bilayered collagen-HA matrices containing tobramycin and growth factors were also evaluated using an in vivo full thickness dermal defect model. Though the tobramycin incorporated collagen-HA matrix had no significant effect on wound healing compared with the control, the tobramycin incorporated matrix containing basic fibroblast growth factor or platelet-derived growth factor significantly enhanced wound healing. This study demonstrates the potential efficacy of crosslinked collagen-HA matrix containing antibiotics and growth factors for defective skin tissue replacement and infection prevention.
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Affiliation(s)
- Si-Nae Park
- Department of Biomedical Engineering, Yonsei University College of Medicine, Shinchon-dong, Seodaemun-ku, Seoul, South Korea
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Yoon JH, Brooks RL, Zhao JZ, Isaacs D, Halper J. The effects of enrofloxacin on decorin and glycosaminoglycans in avian tendon cell cultures. Arch Toxicol 2004; 78:599-608. [PMID: 15148565 DOI: 10.1007/s00204-004-0574-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2004] [Accepted: 03/16/2004] [Indexed: 11/26/2022]
Abstract
Tendonitis and tendon rupture have been reported to occur during or following therapy with fluoroquinolone antibiotics. Though the pathogenesis is unknown, several studies suggest that fluoroquinolone antibiotics alter proteoglycan content in soft tissues, including tendons, and thereby alter collagen fibrillogenesis. To better understand the mechanism of action of fluoroquinolones, we studied the effects of enrofloxacin, a widely used fluoroquinolone in veterinary medicine, on avian tendon cell cultures established from gastrocnemius tendons from 18-day-old chicken embryos. We found that cell proliferation was progressively inhibited with increasing concentrations of enrofloxacin. This was accompanied by changes in morphology, extracellular matrix content and collagen fibril formation as detected by electron microscopy. We also observed a 35% decrease in the content of total monosaccharides in enrofloxacin-treated cells. The ratio of individual monosaccharides was also altered in enrofloxacin-treated cells. Enrofloxacin also induced the synthesis of small amounts of keratan sulfate in tendon cells. Moreover we observed enrofloxacin-induced changes in glycosylation of decorin, the most abundant tendon proteoglycan, resulting in the emergence of multiple lower molecular bands that were identifiable as decorin after chondroitinase ABC and N-glycanase treatment of extracts from enrofloxacin-treated cells. Medium conditioned by enrofloxacin-treated cells contained less decorin than did medium conditioned by control cells. We hypothesize that enrofloxacin induces either changes in the number of N-linked oligosaccharides attached to the core protein of decorin or changes in decorin degradation process. In conclusion, our data suggest that enrofloxacin affects cell proliferation and extracellular matrix through changes in glycosylation.
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Affiliation(s)
- Jung Hae Yoon
- Department of Pathology, College of Veterinary Medicine, The University of Georgia, Athens, GA 30602, USA
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Perry AC, Prpa B, Rouse MS, Piper KE, Hanssen AD, Steckelberg JM, Patel R. Levofloxacin and trovafloxacin inhibition of experimental fracture-healing. Clin Orthop Relat Res 2003:95-100. [PMID: 12966282 DOI: 10.1097/01.blo.0000087322.60612.14] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We previously have shown that experimental fractures exposed to ciprofloxacin have diminished fracture healing. The purpose of this study was to assess the effect of levofloxacin and trovafloxacin on experimental fracture healing to test the hypothesis that diminished fracture healing is a quinolone class effect. Sixty-one male Wistar rats were divided into three groups, which received 25 mg/kg of levofloxacin twice daily for 3 weeks, 35 mg/kg of trovafloxacin twice daily for 3 weeks, or no treatment, beginning 7 days after production of closed, nondisplaced, bilateral femoral fractures. The mean peak serum concentrations of levofloxacin and trovafloxacin drawn 30 minutes after administration were 6.9 and 7.0 microg/mL, respectively. Radiographic, histologic, and biomechanical studies were used to evaluate fracture healing. Torsional strength testing of fracture callus exposed to levofloxacin and trovafloxacin revealed a decrease in strength (299 and 257 N-mm, respectively) as compared with controls (364 N-mm). Radiographs revealed significantly more advanced healing in control animals (Goldberg score of 2.1) compared with the fractures in the rats treated with levofloxacin and trovafloxacin (Goldberg score of 1.5 in both groups). Fracture calluses in the animals treated with levofloxacin and trovafloxacin showed a lower histologic grade (5.3 and 3.5, respectively) as compared with control animals (7.5) representing a less mature callus with the presence of more cartilage and less woven bone. These data suggest that experimental fractures systemically exposed to levofloxacin or trovafloxacin have diminished healing during the early stages of fracture repair. The administration of quinolones during early fracture repair may compromise fracture healing in humans.
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Affiliation(s)
- Archie C Perry
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
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Wright I. Arthroscopic surgery in the management of contamination and infection of joints, tendon sheaths, and bursae. ACTA ACUST UNITED AC 2002. [DOI: 10.1053/ctep.2002.35587] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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