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Su W, Yang Q, Li T, Xu J, Yin P, Han M, Lin Z, Deng Y, Wu Y, Huang W, Wang L. Electrospun Aligned Nanofiber Yarns Constructed Biomimetic M-Type Interface Integrated into Precise Co-Culture System as Muscle-Tendon Junction-on-a-Chip for Drug Development. SMALL METHODS 2024:e2301754. [PMID: 38593371 DOI: 10.1002/smtd.202301754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/21/2024] [Indexed: 04/11/2024]
Abstract
The incorporation of engineered muscle-tendon junction (MTJ) with organ-on-a-chip technology provides promising in vitro models for the understanding of cell-cell interaction at the interface between muscle and tendon tissues. However, developing engineered MTJ tissue with biomimetic anatomical interface structure remains challenging, and the precise co-culture of engineered interface tissue is further regarded as a remarkable obstacle. Herein, an interwoven waving approach is presented to develop engineered MTJ tissue with a biomimetic "M-type" interface structure, and further integrated into a precise co-culture microfluidic device for functional MTJ-on-a-chip fabrication. These multiscale MTJ scaffolds based on electrospun nanofiber yarns enabled 3D cellular alignment and differentiation, and the "M-type" structure led to cellular organization and interaction at the interface zone. Crucially, a compartmentalized co-culture system is integrated into an MTJ-on-a-chip device for the precise co-culture of muscle and tendon zones using their medium at the same time. Such an MTJ-on-a-chip device is further served for drug-associated MTJ toxic or protective efficacy investigations. These results highlight that these interwoven nanofibrous scaffolds with biomimetic "M-type" interface are beneficial for engineered MTJ tissue development, and MTJ-on-a-chip with precise co-culture system indicated their promising potential as in vitro musculoskeletal models for drug development and biological mechanism studies.
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Affiliation(s)
- Weiwei Su
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Qiao Yang
- School of Biomedical Engineering, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Ting Li
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jie Xu
- School of Biomedical Engineering, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Panjing Yin
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Mingying Han
- School of Biomedical Engineering, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Zhuosheng Lin
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Yuping Deng
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Yaobin Wu
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wenhua Huang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- Department of Orthopedics, Affiliated Hospital of Putian University, Putian, 351100, China
| | - Ling Wang
- School of Biomedical Engineering, Southern Medical University, Guangzhou, Guangdong, 510515, China
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Dogheim GM, Werida RH. Drug Utilization Evaluation Study of Ciprofloxacin Use and Adverse Events Occurrence: Role of Community Pharmacists. J Pharm Technol 2024; 40:15-22. [PMID: 38318258 PMCID: PMC10838536 DOI: 10.1177/87551225231216328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024] Open
Abstract
Background: Antimicrobial resistance is a global health crisis threatening optimal management of infectious diseases. Ciprofloxacin is a widely used fluoroquinolone in various disease conditions. Resistance against ciprofloxacin is increasing, leading to nonoptimal management of patients. Thus, the aim of this study was to assess ciprofloxacin use in the community setting in terms of appropriate prescribing, dosing, frequency, and duration of use. Methods: A cross-sectional, retrospective study was conducted by community pharmacists in 5 community pharmacies in Egypt from September 2021 to February 2022. Patients prescribed oral ciprofloxacin during the period of the study were included. Data on demographics, indications for ciprofloxacin, dosing regimen, adverse events, and drug interactions were collected. Results: A total of 151 patients' record indicated for ciprofloxacin were included in the study, of whom 44.4% were men and 55.6% were women who were neither pregnant nor lactating. Based on international guidelines, 96.69% ciprofloxacin prescriptions were appropriate; 96.03% contained correct ciprofloxacin dosing whereas 3.97% were overdose. A total of 90. 73% had correct frequency of administration and 96.03% records had correct durations. Only 1.99% of patients were ≤18 years of age, which is an absolute contraindication. Interacting drugs with ciprofloxacin were 28.5% with acetaminophen, 31.1% with ibuprofen, 16.6% with antacids, 21.2% with chlorpheniramine, and 7.9% with prednisolone. Adverse events included 1.32% hypoglycemia, 0.66% hyperglycemia, 3.97% tendinitis, and 2.65% QTc (heart rate-corrected QT interval) prolongation. Conclusion and relevance: Ciprofloxacin use in community pharmacies is appropriate according to international guidelines. Ongoing drug utilization evaluation is necessary to ensure rational drug use, which in turn can decrease resistance rates.
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Affiliation(s)
- Gaidaa M. Dogheim
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Rehab H. Werida
- Department of Clinical Pharmacy & Pharmacy Practice, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt
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Bafaloukos D, Gazouli I, Koutserimpas C, Skarlos PD, Samonis G. Bilateral Spontaneous Supraspinatus Tendon Rupture Under Prolonged BRAF/MEK Targeting Treatment in a Melanoma Patient. Cureus 2023; 15:e50567. [PMID: 38222175 PMCID: PMC10788042 DOI: 10.7759/cureus.50567] [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] [Accepted: 12/14/2023] [Indexed: 01/16/2024] Open
Abstract
The B-Raf proto-oncogene, serine/threonine kinase (BRAF)/ mitogen-activated protein kinase kinase (MEK) targeting agents have become the treatment of choice for BRAF-mutated melanoma during the last decade. However, it is possible that some long-term adverse events of these drugs have not yet been reported. A case of bilateral spontaneous, non-traumatic, supraspinatus tendon rupture in a 65-year-old Caucasian male suffering metastatic melanoma under prolonged and successful combination treatment with dabrafenib plus trametinib is presented. These damages could not be attributed to some other probable cause. The ruptured tendons were promptly restored arthroscopically. Oncologists should remain vigilant for the early detection of potential side effects of BRAF/MEK targeting agents that have not been systematically recorded yet but may appear and affect patients in the long run.
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Affiliation(s)
| | - Ioanna Gazouli
- Department of Medical Oncology, Metropolitan Hospital, Athens, GRC
| | - Christos Koutserimpas
- Department of Orthopedics and Traumatology, 251 Air Force General Hospital, Athens, GRC
- Department of Anatomy, National and Kapodistrian University of Athens, Athens, GRC
| | | | - George Samonis
- Department of Medicine, University of Crete, Heraklion, GRC
- Department of Medical Oncology, Metropolitan Hospital, Athens, GRC
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Chongboonwatana J, Terbsiri V, Suwanpimolkul G. Prevalence, risk factors and treatment outcomes of fluoroquinolones-associated tendinopathy in tuberculosis patients at university hospital, Thailand. Heliyon 2023; 9:e20331. [PMID: 37810827 PMCID: PMC10550594 DOI: 10.1016/j.heliyon.2023.e20331] [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: 12/10/2022] [Revised: 09/10/2023] [Accepted: 09/19/2023] [Indexed: 10/10/2023] Open
Abstract
Background Tuberculosis (TB) is an epidemic disease in Thailand. Fluoroquinolones are used to treat TB and have a lengthy treatment course. Therefore, many patients may have adverse effects from these medications. Tendinopathy has been reported as a significant adverse effect of fluoroquinolones. Although the mechanism of tendinopathy from fluoroquinolones is not fully understood, it can progress to a more serious consequence such as a ruptured tendon which can result in morbidity if not treated effectively. Methods This study was a single-centered, retrospective descriptive study conducted in patients at a tertiary-level university hospital in Thailand. TB patients who received fluoroquinolones for the treatment of TB from January 2017 to December 2019 were enrolled. This study assessed the prevalence, clinical characteristics, treatment, treatment outcomes for fluoroquinolones-associated tendinopathy, and treatment outcomes of TB. Results During the study period, 184 participants that were diagnosed with TB and used fluoroquinolones were enrolled in the study. 34 (18.5%) participants developed tendinopathy. The risk factors that were associated with fluoroquinolones-associated tendinopathy were younger age (<60 years) (Odd ratio (OR) 3.61; 95% CI 1.16-11.23), female (OR 3.54; 95% CI 1.58-7.90), and prolonged usage of levofloxacin (>180 days) (OR 2.61; 95%CI 1.12-6.08). All participants who developed tendinopathy received conservative treatment; the dose of fluoroquinolones was reduced in 9 (26.4%) participants, fluoroquinolones were discontinued in 7 (20.6%) participants and the rest of the participants (n = 18; 52.9%) had conservative treatment. After conservative treatment, 25 (73.5%) participants recovered from tendinopathy. For the TB treatment, 27 (79.4%) participants in the tendinopathy group completed TB treatment and none of them experienced treatment failure. On the other hand, 89 (59.3%) participants in the no tendinopathy group had completed their TB treatment and 3 (2%) of them experienced treatment failure. Conclusions The prevalence of fluoroquinolones-associated tendinopathy was not uncommon, and the risk of fluoroquinolones-associated tendinopathy was high in young and female patients. Levofloxacin use was related to an elevated risk of developing tendinopathy, which was dose- and duration-dependent. Conservative treatment, reducing the dose or discontinuation of fluoroquinolones successfully improved the symptoms of tendinopathy. Fluoroquinolones-associated tendinopathy did not affect the treatment of TB.
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Affiliation(s)
- Jirarat Chongboonwatana
- Department of Medicine, Faculty of Medicine, Chulalongkorn University, and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Varalee Terbsiri
- Division of Infectious Diseases, Faculty of Medicine, Chulalongkorn University, and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Gompol Suwanpimolkul
- Division of Infectious Diseases, Faculty of Medicine, Chulalongkorn University, and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
- Center of Excellence in Tuberculosis, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Emerging Infectious Diseases Clinical Center, Thai Red Cross Society, Bangkok, Thailand
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Dabrowska S, Ekiert-Radecka M, Karbowniczek J, Weglarz WP, Heljak M, Lojkowski M, Obuchowicz R, Swieszkowski W, Mlyniec A. Calcification alters the viscoelastic properties of tendon fascicle bundles depending on matrix content. Acta Biomater 2023; 166:360-374. [PMID: 37172636 DOI: 10.1016/j.actbio.2023.05.010] [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: 10/15/2022] [Revised: 04/18/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023]
Abstract
Tendon fascicle bundles are often used as biological grafts and thus must meet certain quality requirements, such as excluding calcification, which alters the biomechanical properties of soft tissues. In this work, we investigate the influence of early-stage calcification on the mechanical and structural properties of tendon fascicle bundles with varying matrix content. The calcification process was modeled using sample incubation in concentrated simulated body fluid. Mechanical and structural properties were investigated using uniaxial tests with relaxation periods, dynamic mechanical analysis, as well as magnetic resonance imaging and atomic force microscopy. Mechanical tests showed that the initial phase of calcification causes an increase in the elasticity, storage, and loss modulus, as well as a drop in the normalized value of hysteresis. Further calcification of the samples results in decreased modulus of elasticity and a slight increase in the normalized value of hysteresis. Analysis via MRI and scanning electron microscopy showed that incubation alters fibrillar relationships within the tendon structure and the flow of body fluids. In the initial stage of calcification, calcium phosphate crystals are barely visible; however, extending the incubation time for the next 14 days results in the appearance of calcium phosphate crystals within the tendon structure and leads to damage in its structure. Our results show that the calcification process modifies the collagen-matrix relationships and leads to a change in their mechanical properties. These findings will help to understand the pathogenesis of clinical conditions caused by calcification process, leading to the development of effective treatments for these conditions. STATEMENT OF SIGNIFICANCE: This study investigates how calcium mineral deposition in tendons affects their mechanical response and which processes are responsible for this phenomenon. By analyzing the elastic and viscoelastic properties of animal fascicle bundles affected by calcification induced via incubation in concentrated simulated body fluid, the study sheds light on the relationship between structural and biochemical changes in tendons and their altered mechanical response. This understanding is crucial for optimizing tendinopathy treatment and preventing tendon injury. The findings provide insights into the calcification pathway and its resulting changes in the biomechanical behaviors of affected tendons, which have been previously unclear.
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Affiliation(s)
- Sylwia Dabrowska
- AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Krakow, Poland.
| | - Martyna Ekiert-Radecka
- AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Krakow, Poland.
| | - Joanna Karbowniczek
- AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Krakow, Poland.
| | | | - Marcin Heljak
- Warsaw University of Technology, Faculty of Materials Science and Engineering, Warsaw, Poland.
| | - Maciej Lojkowski
- Warsaw University of Technology, Faculty of Materials Science and Engineering, Warsaw, Poland; Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Warsaw, Poland.
| | - Rafal Obuchowicz
- Jagiellonian University Collegium Medicum, Department of Radiology, Krakow, Poland.
| | - Wojciech Swieszkowski
- Warsaw University of Technology, Faculty of Materials Science and Engineering, Warsaw, Poland.
| | - Andrzej Mlyniec
- AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Krakow, Poland.
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Overview of Side-Effects of Antibacterial Fluoroquinolones: New Drugs versus Old Drugs, a Step Forward in the Safety Profile? Pharmaceutics 2023; 15:pharmaceutics15030804. [PMID: 36986665 PMCID: PMC10056716 DOI: 10.3390/pharmaceutics15030804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/07/2023] [Accepted: 02/17/2023] [Indexed: 03/05/2023] Open
Abstract
Antibacterial fluoroquinolones (FQs) are frequently used in treating infections. However, the value of FQs is debatable due to their association with severe adverse effects (AEs). The Food and Drug Administration (FDA) issued safety warnings concerning their side-effects in 2008, followed by the European Medicine Agency (EMA) and regulatory authorities from other countries. Severe AEs associated with some FQs have been reported, leading to their withdrawal from the market. New systemic FQs have been recently approved. The FDA and EMA approved delafloxacin. Additionally, lascufloxacin, levonadifloxacin, nemonoxacin, sitafloxacin, and zabofloxacin were approved in their origin countries. The relevant AEs of FQs and their mechanisms of occurrence have been approached. New systemic FQs present potent antibacterial activity against many resistant bacteria (including resistance to FQs). Generally, in clinical studies, the new FQs were well-tolerated with mild or moderate AEs. All the new FQs approved in the origin countries require more clinical studies to meet FDA or EMA requirements. Post-marketing surveillance will confirm or infirm the known safety profile of these new antibacterial drugs. The main AEs of the FQs class were addressed, highlighting the existing data for the recently approved ones. In addition, the general management of AEs when they occur and the rational use and caution of modern FQs were outlined.
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Tran PT, Antonelli PJ, Winterstein AG. Quinolone Ear Drops and Achilles Tendon Rupture. Clin Infect Dis 2023; 76:e1360-e1368. [PMID: 36065683 DOI: 10.1093/cid/ciac709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/15/2022] [Accepted: 08/27/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Delayed eardrum healing has been observed in the ear opposite to the ear treated with otic quinolones (OQ) in rats. Case reports describe tendinopathies after OQ treatment, suggesting adverse systemic effects. METHODS We studied patients aged 19 to 64 years with diagnosis of otitis externa or media in private insurance between 2005 and 2015. We compared OQ treatment against otic neomycin, oral amoxicillin, or azithromycin. Outcomes included Achilles tendon rupture (ATR), Achilles tendinitis (AT), and all-type tendon rupture (ATTR). We applied an active comparator, new-user design with 1-year look-back and ceased follow-up at initiation of systemic steroids or oral quinolones, external injury, hospitalization, and after 35 days. We used trimmed stabilized inverse probability of treatment weights to balance comparison groups in a survival framework. Negative outcomes (clavicle fractures or sports injuries) were examined to rule out differences from varied physical activity (unmeasured confounding). RESULTS We examined 1 501 009 treated otitis episodes. Hazard ratios (HR) for OQ exposure associated with ATR were 4.49 (95% confidence interval [CI], 1.83-11.02), AT 1.04 (95% CI, 0.73-1.50), and ATTR 1.71 (95% CI, 1.21-2.41). Weighted risk differences (RD) per 100 000 episodes for OQ exposure were ATR 7.80 (95% CI, 0.72-14.89), AT 1.01 (95% CI, -12.80 to 14.81), and ATTR 18.57 (95% CI, 3.60-33.53). Corresponding HRs for clavicle fractures and sports injuries were HR,1.71 (95% CI, 0.55-5.27) and HR,1.45 (95% CI, 0.64-3.30), suggesting limited residual confounding. CONCLUSIONS OQ exposure may lead to systemic consequences. Clinicians should consider this potential risk and counsel patients accordingly. Risk factors and mechanisms for this rare, adverse effect deserve further evaluation. Mechanistic and other clinical studies are warranted to corroborate this finding.
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Affiliation(s)
- Phuong T Tran
- Department of Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, Florida, USA.,Faculty of Pharmacy, HUTECH University, Ho Chi Minh City, Vietnam
| | - Patrick J Antonelli
- College of Public Health and Health Professions and College of Medicine, University of Florida, Gainesville, Florida, USA.,Department of Otolaryngology, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Almut G Winterstein
- Department of Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, Florida, USA.,College of Public Health and Health Professions and College of Medicine, University of Florida, Gainesville, Florida, USA.,Department of Epidemiology, College of Public Health and Health Professions and College of Medicine, University of Florida, Gainesville, Florida, USA
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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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Hormesis: wound healing and fibroblasts. Pharmacol Res 2022; 184:106449. [PMID: 36113746 DOI: 10.1016/j.phrs.2022.106449] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/09/2022] [Accepted: 09/10/2022] [Indexed: 11/23/2022]
Abstract
Hormetic dose responses are reported here to occur commonly in the dermal wound healing process, with the particular focus on cell viability, proliferation, migration and collagen deposition of human and murine fibroblasts with in vitro studies. Hormetic responses were induced by a wide range of substances, including endogenous agents, pharmaceutical preparations, plant-derived extracts including many well-known dietary supplements, as well as physical stressor agents such as low-level laser treatments. Detailed mechanistic studies have identified common signaling pathways and their cross-pathway communications that mediate the hormetic dose responses. These findings complement and extend a similar comprehensive assessment concerning the occurrence of hormetic dose responses in keratinocytes. These findings demonstrate the generality of the hormetic dose response for key wound healing endpoints, suggesting that the hormesis concept has a fundamental role in wound healing, with respect to guiding strategies for experimental evaluation as well as therapeutic applications.
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Antibiotic Therapy and Athletes: Is the Mitochondrial Dysfunction the Real Achilles’ Heel? Sports (Basel) 2022; 10:sports10090131. [PMID: 36136386 PMCID: PMC9504712 DOI: 10.3390/sports10090131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/26/2022] [Accepted: 08/12/2022] [Indexed: 11/17/2022] Open
Abstract
It is widely recognized that athletes consume oral antibiotics almost twice as often as observed in the non-sports population in order to reduce as much as possible the period of inactivity due to bacterial diseases. However, increasing evidences have demonstrated the ability of some classes of antibiotics to induce muscle weakness, pain, and a feeling of fatigue upon resuming physical activity conditions that considerably limit the athletic performance of athletes, ascribable to alterations in the biochemical mechanisms underlying normal musculoskeletal activity, such as mitochondrial respiration. For this reason, tailoring a treatment plan for effective antibiotics that limit an athlete’s risk is paramount to their safety and ability to maintain adequate athletic performance. The present review illustrates and critically analyzes the evidence on the use of antibiotics in sports, deepening the molecular mechanisms underlying the onset and development of muscle–tendon alterations in athletes as well as delineating the pharmacological strategies aimed at counteracting such adverse events.
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Chen C, Patterson B, Simpson R, Li Y, Chen Z, Lv Q, Guo D, Li X, Fu W, Guo B. Do fluoroquinolones increase aortic aneurysm or dissection incidence and mortality? A systematic review and meta-analysis. Front Cardiovasc Med 2022; 9:949538. [PMID: 36017083 PMCID: PMC9396038 DOI: 10.3389/fcvm.2022.949538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 07/13/2022] [Indexed: 11/13/2022] Open
Abstract
Objective The aim of this study was to determine the association between fluoroquinolones (FQs) use, the risk of de novo aortic aneurysm or dissection (AAD), and the prognosis of patients with pre-existing AAD. Materials and methods We searched PubMed, EMBASE, CENTRAL, Scopus, and Web of Science on 31 March 2022. Observational studies that evaluated the association of FQs with AAD risk in the general population or FQs with the prognosis of patients with preexisting AAD and presented adjusted effect estimates were included. Two reviewers assessed study eligibility, extracted data, and assessed the risk of bias and certainty of evidence using GRADE. Results Of the 13 included studies, 11 focused on the association of FQs with de novo AAD incidence, and only one study investigated the association of FQs with the patient with AAD prognosis. FQ use was associated with an increased risk of de novo AAD within 30 days (RR: 1.42; 95% CI: 1.11–1.81; very low certainty) and 60 days (RR: 1.44; 95% CI: 1.26–1.64; low certainty). Specifically, the association was significant when compared with amoxicillin, azithromycin, doxycycline, or no antibiotic use. Furthermore, patients with preexisting AAD exposure to FQ had an increased risk of all-cause mortality (RR: 1.61; 95% CI: 1.50–1.73; moderate certainty) and aortic-specific mortality (RR: 1.80; 95% CI: 1.50–2.15; moderate certainty), compared to the non-exposed FQ group within a 60-day risk period. Conclusion FQs were associated with an increased incidence of AAD in the general population and a higher risk of adverse outcomes in patients with preexisting AAD. Nevertheless, the results may be affected by unmeasured confounding factors. This should be considered by physicians contemplating using FQs in patients with aortic dilation and those at high risk of AAD. Systematic Review Registration [https://www.crd.york.ac.uk/prospero/], identifier [CRD42021230171].
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Affiliation(s)
- Can Chen
- Department of Pharmacy, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Benjamin Patterson
- Department of Vascular Surgery, University Hospital Southampton, Southampton, United Kingdom
| | - Ruan Simpson
- Department of Pathology, Portsmouth Hospitals NHS Trust, United Kingdom
| | - Yanli Li
- Department of Pharmacy, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhangzhang Chen
- Department of Pharmacy, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qianzhou Lv
- Department of Pharmacy, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Daqiao Guo
- Department of Vascular Surgery, Zhongshan Hospital, Institute of Vascular Surgery, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Xiaoyu Li
- Department of Pharmacy, Zhongshan Hospital, Fudan University, Shanghai, China
- *Correspondence: Xiaoyu Li,
| | - Weiguo Fu
- Department of Vascular Surgery, Zhongshan Hospital, Institute of Vascular Surgery, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
- Weiguo Fu,
| | - Baolei Guo
- Department of Vascular Surgery, Zhongshan Hospital, Institute of Vascular Surgery, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
- Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
- Baolei Guo,
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Kowalska J, Banach K, Rzepka Z, Rok J, Karkoszka M, Wrześniok D. Changes in the Oxidation-Reduction State of Human Dermal Fibroblasts as an Effect of Lomefloxacin Phototoxic Action. Cells 2022; 11:cells11121971. [PMID: 35741100 PMCID: PMC9222184 DOI: 10.3390/cells11121971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/28/2022] [Accepted: 06/17/2022] [Indexed: 11/30/2022] Open
Abstract
Phototoxicity induced by antibiotics is a real problem in health care. The discontinuation of antibiotic therapy due to a phototoxic reaction can lead to the development of resistant strains. Fluoroquinolones are widely used antibiotics that exhibit phototoxic activity under UVA radiation. The purpose of the study was to examine the redox status of human dermal fibroblasts exposed to UVA radiation and treated with lomefloxacin, the most phototoxic fluoroquinolone. Lomefloxacin alone was found to have an antiproliferative activity on fibroblasts by affecting the cell cycle. In addition, the drug caused a redox imbalance associated with the decreased expression of catalase and glutathione peroxidase. UVA radiation increased the drug cytotoxicity and oxidative stress induced by lomefloxacin. The decrease in cell viability was accompanied by a high level of reactive oxygen species and extensive changes in the antioxidant levels. The revealed data indicate that the phototoxic action of lomefloxacin results from both increased reactive oxygen species production and an impaired antioxidant defense system. Considering all of the findings, it can be concluded that lomefloxacin-induced phototoxic reactions are caused by an oxidoreductive imbalance in skin cells.
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13
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Jun C, Fang B. Current progress of fluoroquinolones-increased risk of aortic aneurysm and dissection. BMC Cardiovasc Disord 2021; 21:470. [PMID: 34583637 PMCID: PMC8477541 DOI: 10.1186/s12872-021-02258-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 09/08/2021] [Indexed: 11/12/2022] Open
Abstract
Aortic aneurysm (AA) and aortic dissection (AD) are major life-threatening diseases around the world. AA is a localized or diffuse dilation of the aorta, while AD is the separation of the layers creating a false lumen within the aortic wall. Fluoroquinolones (FQ) remain one of the most important kind of antibiotics and have a wider clinical use and broad antibacterial spectrum. FQ were also reported to treat infected AA. The most common adverse events (AEs) of FQ are mild and reversible, like headaches, diarrhea and nausea. Due to FQ-related serious AEs, such as tendonitis and tendon rupture, chondrotoxicity, or retinal detachment, QT-prolongation and dysglycemia, the United States Food and Drug Administration (FDA) issued a black box warning for FQ for systemic use in 2016 and updated warnings for FQ several times since then. Of note, in December 2018, FDA issued several "black box warnings" against FQ with the latest safety announcement warning about an increased risk of ruptures in the aorta blood vessel in certain patients. Recently, many studies have indicated an association between FQ and an increase risk of AA and AD. However, the exact mechanism of FQ-induced AA/AD remains unclear. This review aims to highlight the latest research progress of the alarming association between FQ and AA/AD. Moreover, molecular mechanisms of FQ in increasing risk of AA and AD are explored. Hopefully, this review can provide novel insights into FQ-increased the risk of AA/AD and a starting place for stewardship interventions.
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Affiliation(s)
- Cui Jun
- Department of Cardiothoracic Surgery, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, 441000, Hubei, China
| | - Bian Fang
- Department of Pharmacy, Featured Preparations of Vitiligo Xiangyang Key Laboratory, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, 441000, Hubei, China.
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14
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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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15
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Hirschmüller A, Morath O. [Tendinopathies of the Achilles tendon]. Z Rheumatol 2021; 80:629-640. [PMID: 34287670 DOI: 10.1007/s00393-021-01006-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2021] [Indexed: 10/20/2022]
Abstract
Disorders of the Achilles tendon are among the most frequent musculoskeletal injuries in athletes as well as in the general population. It is very important to differentiate the different clinical pictures summarized under the general term achillodynia and to understand the pathogenesis in order to undertake the correct therapeutic measures. In the case of insertional tendinopathies in particular, a rheumatological origin should be clarified. Doppler ultrasound is the most important diagnostic tool. Evidence-based treatment methods include various training programs, shock wave treatment, diverse injection and surgical procedures, each of which are discussed in detail in this article.
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Affiliation(s)
- Anja Hirschmüller
- Altius Swiss Sportmed Center Ag, Habich-Dietschy-Str. 5a, 4310, Rheinfelden, Schweiz. .,Klinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Freiburg, Medizinische Fakultät, Albert-Ludwigs-Universität Freiburg, Freiburg, Deutschland.
| | - Oliver Morath
- Institut Bewegungs- und Arbeitsmedizin, Universitätsklinikum Freiburg, Medizinische Fakultät, Albert-Ludwigs-Universität Freiburg, Freiburg, Deutschland
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16
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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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17
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Kim Y, Park GW, Kim S, Moon HJ, Won S, Chung W, Yang HJ. Fluoroquinolone and no risk of Achilles-tendinopathy in childhood pneumonia under eight years of age-a nationwide retrospective cohort. J Thorac Dis 2021; 13:3399-3408. [PMID: 34277036 PMCID: PMC8264711 DOI: 10.21037/jtd-20-2256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 04/14/2021] [Indexed: 11/26/2022]
Abstract
Background The emergence of macrolide-resistant Mycoplasma pneumoniae pneumonia (MRMP) has made its treatment challenging. A few guidelines have recommended fluoroquinolones (FQs) as second-line drugs of choice for treating MRMP in children under the age of eight, but concerns about potential adverse events (i.e., Achilles tendinopathy; AT) have been raised. The aim of this study was to investigate the relationship between the use of FQs and the risk of AT in pneumonia in children under eight years of age. Methods Children hospitalized with pneumonia (total of 2,213,807 episodes) from 2002 to 2017 were enrolled utilizing the Korean National Health Insurance Sharing Service (NHISS) database. The independent risk of FQs for AT was analyzed by a generalized estimating equation with adjustment for age, sex, and underlying diseases. Results Among 2,213,807 episodes of pneumonia hospitalization, children in a total of 6,229 episodes (0.28%) were treated with FQs (levofloxacin 40.9%, ciprofloxacin 36.1%, moxifloxacin 11.6%, and others 11.4%). The FQ-exposure group showed a 0.19% (12/6,229) incidence of AT within 30 days after the first administration of FQ. The use of FQs increased the risk of AT (OR 3.00; 95% CI: 1.71–5.29), but became null after adjusting for age, sex, and underlying diseases (aOR 0.85; 95% CI: 0.48–1.51). All AT related to the use of FQs occurred after the use of ciprofloxacin or levofloxacin, and not in children under eight years of age. Conclusions AT was a rare adverse event of FQ use for childhood pneumonia, particularly under eight years of age. Clinicians could consider using FQs as a second-line option in the treatment of childhood pneumonia when there are no alternative therapeutic options.
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Affiliation(s)
- Yunsun Kim
- SCH Biomedical Informatics Research Unit, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Gun Woo Park
- Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Sangyoung Kim
- SCH Biomedical Informatics Research Unit, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Hui Jeong Moon
- SCH Biomedical Informatics Research Unit, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Sungho Won
- Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea.,Interdisciplinary Program of Bioinformatics, Seoul National University, Seoul, Korea.,Institute of Health and Environment, Seoul National University, Seoul, Korea
| | - Wankyo Chung
- Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Hyeon-Jong Yang
- SCH Biomedical Informatics Research Unit, Soonchunhyang University Seoul Hospital, Seoul, Korea.,Pediatric Allergy and Respiratory Center, Department of Pediatrics, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
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18
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Briones-Figueroa A, Sifuentes-Giraldo WA, Morell-Hita JL, Vázquez-Díaz M. Achilles Tendon Rupture Associated with the Use of Fluoroquinolones in Patients Over 60 Years of AGE: Experience From a Single Tertiary Centre. REUMATOLOGIA CLINICA 2021; 17:141-143. [PMID: 31672507 DOI: 10.1016/j.reuma.2019.08.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/26/2019] [Accepted: 08/07/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Fluoroquinolones have been associated with increased risk of tendinopathy and Achilles tendon rupture (ATR), especially in patients over 60 years of age. METHODS A retrospective study was carried out including patients over 60 years of age with ATR attended in our centre over the period 2000-2017. RESULTS We identified 44 patients with RTA, of whom 18% (8/44) had been previously treated with fluoroquinolones, with a mean age at diagnosis of ATR of 77.37 years and concomitant corticotherapy in 4 of them. In 7patients, the rupture was spontaneous and all required surgical management. A significantly higher frequency of smoking, concomitant corticotherapy and spontaneous ruptures were found in the group treated with fluoroquinolones. CONCLUSIONS ATR is an adverse event that can occur in patients over 60 years of age treated with fluoroquinolones, so an adequate risk-benefit assessment should be carried out in this population, especially in the presence of associated risk factors.
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Affiliation(s)
| | - Walter Alberto Sifuentes-Giraldo
- Servicio de Reumatología, Hospital Universitario Ramón y Cajal, Madrid, España; Instituto Ramón y Cajal de Investigación Sanitaria (IRyCIS), Madrid, España
| | | | - Mónica Vázquez-Díaz
- Servicio de Reumatología, Hospital Universitario Ramón y Cajal, Madrid, España
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19
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Scavone C, Mascolo A, Ruggiero R, Sportiello L, Rafaniello C, Berrino L, Capuano A. Quinolones-Induced Musculoskeletal, Neurological, and Psychiatric ADRs: A Pharmacovigilance Study Based on Data From the Italian Spontaneous Reporting System. Front Pharmacol 2020; 11:428. [PMID: 32351386 PMCID: PMC7174713 DOI: 10.3389/fphar.2020.00428] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 03/19/2020] [Indexed: 12/18/2022] Open
Abstract
Background The use of quinolones has been associated with the development of serious and persistent adverse drug reaction (ADR) mainly affecting muscles, joints and the nervous system. This risk has led the European Medicines Agency (EMA) to endorse some restrictions on the use of this class of antibiotic. Therefore, we performed a study to primary estimate the reporting probability of musculoskeletal, neurological, and psychiatric ADRs among quinolone generations using national data. Methods We retrieved Individual Case Safety Reports (ICSRs) with a quinolone as suspected drug among those reported through the Campania spontaneous reporting system from January 1st, 2001 to April 30th 2019. Moreover, we retrieved national aggregated safety data from the online public report system (RAM system) for the period from January 1st, 2002 to March 31st, 2019. Risk factors were classified as “age greater than 60 years,” “therapeutic indication,” “renal failure,” “organ transplantation,” “use of corticosteroid,” and “history of side effects”. Reporting odds ratio (ROR) was computed to evaluate the reporting probability of musculoskeletal, neurological, or psychiatric events among quinolones generations. Results A total of 87 ICSRs with a quinolone as suspected drug that reported at least one musculoskeletal, neurological, and psychiatric adverse event were identified in the Campania spontaneous reporting system. Forty-nine (56.3%) ICSRs reported risk factors (total risk factors 59). The most reported risk factor was “age greater than 60 years” (69.5%), followed by “therapeutic indication” (16.9%), “renal failure” (5.1%), “organ transplantation” (3.4%), “use of corticosteroid” (3.4%), and “history of side effects” (1.7%). Second-generation quinolones were associated with a lower reporting probability of musculoskeletal (ROR 0.70; 95% CI 0.63–0.79), neurological (ROR 0.81; 95% CI 0.73–0.90), and psychiatric (ROR 0.55; 95% CI 0.44–0.63) ADRs compared to the third generation of quinolones. Conclusions Our findings showed that third-generation quinolones were always associated with a higher reporting probability of musculoskeletal, neurological, and psychiatric ADRs compared to the second generation ones. Moreover, we described risk factors in more than half of our cases suggesting that the inappropriate use of quinolones is a phenomenon that may frequently predispose patients to the occurrence of these ADRs.
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Affiliation(s)
- Cristina Scavone
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy.,Department of Experimental Medicine, Section of Pharmacology "L. Donatelli", University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Annamaria Mascolo
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy.,Department of Experimental Medicine, Section of Pharmacology "L. Donatelli", University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Rosanna Ruggiero
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy.,Department of Experimental Medicine, Section of Pharmacology "L. Donatelli", University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Liberata Sportiello
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy.,Department of Experimental Medicine, Section of Pharmacology "L. Donatelli", University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Concetta Rafaniello
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy.,Department of Experimental Medicine, Section of Pharmacology "L. Donatelli", University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Liberato Berrino
- Department of Experimental Medicine, Section of Pharmacology "L. Donatelli", University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Annalisa Capuano
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy.,Department of Experimental Medicine, Section of Pharmacology "L. Donatelli", University of Campania "Luigi Vanvitelli", Naples, Italy
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20
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Carino D, Zafar MA, Singh M, Ziganshin BA, Elefteriades JA. Fluoroquinolones and Aortic Diseases: Is There a Connection. AORTA : OFFICIAL JOURNAL OF THE AORTIC INSTITUTE AT YALE-NEW HAVEN HOSPITAL 2019; 7:35-41. [PMID: 31529426 PMCID: PMC6748841 DOI: 10.1055/s-0039-1693468] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Fluoroquinolones (FQs) are one of the most commonly prescribed classes of antibiotics. Their high tissue distribution and broad-spectrum antibacterial coverage make their use very attractive in numerous infectious diseases. Although generally well tolerated, FQs have been associated with different adverse effects including dysglycemia and arrhythmias. FQs have been also associated with a series of adverse effects related to collagen degradation, such as Achilles tendon rupture and retinal detachment. Recently, an association between consumption of FQs and increased risk of aortic aneurysm and dissection has been proposed. This article reviews the pathogenesis of thoracic aortic diseases, the molecular mechanism of FQ-associated collagen toxicity, and the possible contribution of FQs to aortic diseases.
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Affiliation(s)
- Davide Carino
- Department of Surgery, Aortic Institute at Yale-New Haven, Yale University School of Medicine, New Haven, Connecticut
| | - Mohammad A Zafar
- Department of Surgery, Aortic Institute at Yale-New Haven, Yale University School of Medicine, New Haven, Connecticut
| | - Mrinal Singh
- Department of Surgery, Aortic Institute at Yale-New Haven, Yale University School of Medicine, New Haven, Connecticut
| | - Bulat A Ziganshin
- Department of Surgery, Aortic Institute at Yale-New Haven, Yale University School of Medicine, New Haven, Connecticut
| | - John A Elefteriades
- Department of Surgery, Aortic Institute at Yale-New Haven, Yale University School of Medicine, New Haven, Connecticut
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Abstract
Fluoroquinolones are a widely used class of antibiotic that are effective in treating a wide variety of pathogens. Despite their popularity there is increasing concern regarding the potential complications associated with these agents. Patients who take a fluoroquinolone have an increased risk of developing tendinopathy, peripheral neuropathy, and aortic aneurysm or dissection. Providers should consider the risk of these potential complications before using these medications.
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Affiliation(s)
- Matthew C DeLaney
- Associate Professor, Department of Emergency Medicine, University of Alabama at Birmingham, Birmingham, Alabama, 35209, United States
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22
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Abstract
The pathologic conditions of the Achilles tendon are best understood in the context of its unique anatomy and functional demands. Some of these unique considerations include its high physiologic load demands, microscopic tissue composition, muscular origin spanning the knee joint, intimate insertional relationship with the plantar fascia, sensory innervation, and vascular supply with watershed areas. Risks of both acute rupture and chronic tendinopathy are affected by the tendon's anatomy and its functional demands. The tendon's functional anatomy changes with advancing age, notably in its collagen composition and vascular supply.
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23
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Alves C, Mendes D, Marques FB. Fluoroquinolones and the risk of tendon injury: a systematic review and meta-analysis. Eur J Clin Pharmacol 2019; 75:1431-1443. [DOI: 10.1007/s00228-019-02713-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 06/25/2019] [Indexed: 01/06/2023]
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25
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Induction of human aortic myofibroblast-mediated extracellular matrix dysregulation: A potential mechanism of fluoroquinolone-associated aortopathy. J Thorac Cardiovasc Surg 2019; 157:109-119.e2. [DOI: 10.1016/j.jtcvs.2018.08.079] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 08/20/2018] [Accepted: 08/23/2018] [Indexed: 12/11/2022]
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26
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LeMaire SA, Zhang L, Luo W, Ren P, Azares AR, Wang Y, Zhang C, Coselli JS, Shen YH. Effect of Ciprofloxacin on Susceptibility to Aortic Dissection and Rupture in Mice. JAMA Surg 2018; 153:e181804. [PMID: 30046809 PMCID: PMC6233654 DOI: 10.1001/jamasurg.2018.1804] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/22/2018] [Indexed: 12/12/2022]
Abstract
Importance Fluoroquinolones are among the most commonly prescribed antibiotics. Recent clinical studies indicated an association between fluoroquinolone use and increased risk of aortic aneurysm and dissection (AAD). This alarming association has raised concern, especially in patients with AAD with risk of rupture and in individuals at risk for developing AAD. Objective To examine the effect of ciprofloxacin on AAD development in mice. Design, Setting, and Participants In a mouse model of moderate, sporadic AAD, 4-week-old male and female C57BL/6J mice were challenged with a high-fat diet and low-dose angiotensin infusion (1000 ng/min/kg). Control unchallenged mice were fed a normal diet and infused with saline. After randomization, challenged and unchallenged mice received ciprofloxacin (100 mg/kg/d) or vehicle through daily gavage during angiotensin or saline infusion. Aortic aneurysm and dissection development and aortic destruction were compared between mice. The direct effects of ciprofloxacin on aortic smooth muscle cells were examined in cultured cells. Results No notable aortic destruction was observed in unchallenged mice that received ciprofloxacin alone. Aortic challenge induced moderate aortic destruction with development of AAD in 17 of 38 mice (45%) and severe AAD in 9 (24%) but no rupture or death. However, challenged mice that received ciprofloxacin had severe aortic destruction and a significantly increased incidence of AAD (38 of 48 [79%]; P = .001; χ2 = 10.9), severe AAD (32 of 48 [67%]; P < .001; χ2 = 15.7), and rupture and premature death (7 of 48 [15%]; P = .01; χ2 = 6.0). The increased AAD incidence was observed in different aortic segments and was similar between male and female mice. Compared with aortic tissues from challenged control mice, those from challenged mice that received ciprofloxacin showed decreased expression of lysyl oxidase, an enzyme that is critical in the assembly and stabilization of elastic fibers and collagen. These aortas also showed increased matrix metalloproteinase levels and activity, elastic fiber fragmentation, and aortic cell injury. In cultured smooth muscle cells, ciprofloxacin treatment significantly reduced lysyl oxidase expression and activity, increased matrix metalloproteinase expression and activity, suppressed cell proliferation, and induced cell death. Furthermore, ciprofloxacin-a DNA topoisomerase inhibitor-caused nuclear and mitochondrial DNA damage and the release of DNA into the cytosol, subsequently inducing mitochondrial dysfunction, reactive oxygen species production, and activation of the cytosolic DNA sensor STING, which we further showed was involved in the suppression of lysyl oxidase expression and induction of matrix metalloproteinase expression. Conclusions and Relevance Ciprofloxacin increases susceptibility to aortic dissection and rupture in a mouse model of moderate, sporadic AAD. Ciprofloxacin should be used with caution in patients with aortic dilatation, as well as in those at high risk for AAD.
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Affiliation(s)
- Scott A. LeMaire
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
- Department of Cardiovascular Surgery, Texas Heart Institute, Houston
- Cardiovascular Research Institute, Baylor College of Medicine, Houston, Texas
| | - Lin Zhang
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
- Department of Cardiovascular Surgery, Texas Heart Institute, Houston
| | - Wei Luo
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
- Department of Cardiovascular Surgery, Texas Heart Institute, Houston
| | - Pingping Ren
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
- Department of Cardiovascular Surgery, Texas Heart Institute, Houston
| | | | - Yidan Wang
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
- Department of Cardiovascular Surgery, Texas Heart Institute, Houston
| | - Chen Zhang
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
- Department of Cardiovascular Surgery, Texas Heart Institute, Houston
| | - Joseph S. Coselli
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
- Department of Cardiovascular Surgery, Texas Heart Institute, Houston
- Cardiovascular Research Institute, Baylor College of Medicine, Houston, Texas
| | - Ying H. Shen
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
- Department of Cardiovascular Surgery, Texas Heart Institute, Houston
- Cardiovascular Research Institute, Baylor College of Medicine, Houston, Texas
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27
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Shun-Mei E, Zeng JM, Yuan H, Lu Y, Cai RX, Chen C. Sub-inhibitory concentrations of fluoroquinolones increase conjugation frequency. Microb Pathog 2017; 114:57-62. [PMID: 29174700 DOI: 10.1016/j.micpath.2017.11.036] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 11/21/2017] [Accepted: 11/22/2017] [Indexed: 02/08/2023]
Abstract
Bacteria are subjected to sub-minimal inhibitory concentrations (sub-MIC) of antibiotics in various niches where the low-dosage treatment plays a key role in antibiotic resistance selection. However, the mechanism of sub-MIC of antibiotics on the resistant gene transfer is largely unknown. Here, we used Escherichia coli SM10λpir in which the RP4 plasmid was chromosomally-integrated as the donor strain, to investigate the effects of sub-MIC of Ciprofloxacin(Cip) or Levofloxacin(Lev) on conjugational transfer of mobilisable plasmid-pUCP24T from SM10λpir to Pseudomonas aeruginosa. The results showed that the transfer frequency was significantly increased by treating E. coli with sub-MIC of Cip or Lev. To investigate the molecular mechanisms, complete transcriptome sequencing was performed. We found that the sub-MIC of Cip or Lev enhanced the expression of several genes on the RP4 plasmid, which was consistent with the conjugation efficiency. Moreover, the expression of genes associated with SOS response in donor SM10λpir was increased, but had no correlation with conjugation efficiency. These findings suggested that sub-MIC of Cip or Lev may promote conjugational transfer by up-regulating the expression of conjugation associated genes via an SOS-independent mechanism.
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Affiliation(s)
- E Shun-Mei
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Jian-Ming Zeng
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Hui Yuan
- Department of Gastroenterology, People Hospital, Hubei University of Medicine, Shiyan, China.
| | - Yang Lu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Ren-Xin Cai
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Cha Chen
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
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Fluoroquinolones and the Risk of Achilles Tendon Disorders: Update on a Neglected Complication. Urology 2017; 113:20-25. [PMID: 29074337 DOI: 10.1016/j.urology.2017.10.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Revised: 09/09/2017] [Accepted: 10/10/2017] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To evaluate the current evidence and to identify associated risk factors that increase the incidence of this complication. Fluoroquinolone (FQ) has been considered the first-line therapy for uncomplicated urinary infections. FQ has been associated with Achilles tendon disorders, especially during the first month of treatment. METHODS Data sources searched included PubMed, MEDLINE, and Scopus from January 1988 to June 2017. RESULTS A total of 79 articles were used, with ciprofloxacin representing the most common drug. CONCLUSION We found that male gender, advanced age, normal body mass index, chronic renal failure, and concurrent use of corticosteroids increase the risk of Achilles tendon disorders.
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Two Unique Cases of Ciprofloxacin-Associated Avulsion of Ligament and Tendon. Am J Phys Med Rehabil 2017; 97:e33-e36. [PMID: 28857901 DOI: 10.1097/phm.0000000000000816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Ciprofloxacin is recognized to have a deleterious relationship with tendons, particularly Achilles tendinopathy, which makes up most case reports. Tendinopathy seems to occur because of induction of collagen-degrading enzymes causing damage and ischemia of the poorly vascularized regions preventing repair. The focus on the relationship of ciprofloxacin and the Achilles tendon leaves patients on fluoroquinolones with non-Achilles tendinopathy symptoms at risk of misdiagnosis. There have not been any documented instances of ligament damage with ciprofloxacin administration in the literature, although ligament and tendon compositions are similar and should have similar susceptibility. This report includes two cases, one presenting with right lateral thumb pain and a medical history of gastroenteritis treated with ciprofloxacin. Physical examination showed swelling of the right metacarpophalangeal joint and ultrasound confirmed disruption of the radial collateral ligament at insertion on first metacarpal; the second case is of a woman presenting with right hip pain in setting of chronic recurrent diverticulitis treated with ciprofloxacin. She received work-up for lumbar disc disease and spondylosis. After standard therapy with pharmacotherapy and physical therapy for radiculopathy failed, magnetic resonance imaging was performed showing near complete avulsion of the right hamstring tendons from the ischial tuberosity.
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Cancienne JM, Brockmeier SF, Rodeo SA, Young C, Werner BC. Early postoperative fluoroquinolone use is associated with an increased revision rate after arthroscopic rotator cuff repair. Knee Surg Sports Traumatol Arthrosc 2017; 25:2189-2195. [PMID: 27738740 DOI: 10.1007/s00167-016-4354-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 10/04/2016] [Indexed: 01/01/2023]
Abstract
PURPOSE To evaluate the association of postoperative fluoroquinolone use following arthroscopic primary rotator cuff repair with failure requiring revision rotator cuff repair. METHODS An insurance database was queried for patients undergoing rotator cuff repair from 2007 to 2015. These patients were divided into three groups: (1) patients prescribed fluoroquinolones within 6 months postoperatively (divided into 0-2, 2-4, and 4-6 months), (2) a matched negative control cohort of patients not prescribed fluoroquinolones, and (3) a matched positive control cohort of patients prescribed fluoroquinolones between 6 and 18 months following rotator cuff repair. Rates of failure requiring revision rotator cuff repair were compared within 2 years. RESULTS A total of 1292 patients were prescribed fluoroquinolones within 6 months after rotator cuff repair, including 442 within 2 months, 433 within 2 to 4 months, and 417 within 4 to 6 months, and were compared to 5225 matched negative controls and 1597 matched positive controls. The rate of revision rotator cuff repair was significantly higher in patients prescribed fluoroquinolones within 2 months (6.1 %) compared to matched negative (2.2 %, P = 0.0009) and positive controls (2.4 %, P = 0.0026). There were no significant differences in the rate of revision rotator cuff repair when fluoroquinolones were prescribed >2 months after rotator cuff repair. CONCLUSIONS Early use of fluoroquinolones following rotator cuff repair was independently associated with significantly increased rates of failure requiring revision rotator cuff repair. This is the first clinical study examining the association of postoperative fluoroquinolone use with failure following arthroscopic rotator cuff repair. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Jourdan M Cancienne
- Department of Orthopaedic Surgery, University of Virginia Health System, PO Box 800159, Charlottesville, VA, 22908, USA
| | - Stephen F Brockmeier
- Department of Orthopaedic Surgery, University of Virginia Health System, PO Box 800159, Charlottesville, VA, 22908, USA
| | - Scott A Rodeo
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | | | - Brian C Werner
- Department of Orthopaedic Surgery, University of Virginia Health System, PO Box 800159, Charlottesville, VA, 22908, USA.
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Abstract
Rupture of the triceps brachii tendon is exceedingly rare, and surgical repair is generally indicated. Fluoroquinolone antibiotics have been implicated in tendon pathology, including tendon ruptures. Triceps rupture has not been previously reported in the setting of fluoroquinolone antibiotic therapy. We present 2 cases of triceps tendon rupture after treatment with fluoroquinolones. In both cases, triceps repair was performed with good outcomes. These cases highlight a risk of fluoroquinolone-induced tendinopathy to athletes. The sports medicine team should be aware of this risk and consider it when choosing antibiotics to treat athletes.
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Affiliation(s)
- Theodore B. Shybut
- Department of Orthopedic Surgery, Baylor College of Medicine, Houston, TX
- Theodore B. Shybut, MD, Department of Orthopedic Surgery, Baylor College of Medicine, 7200 Cambridge Street, Suite 10A, Houston, TX 77030 ()
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Abstract
BACKGROUND Fluoroquinolone antibiotics are commonly used to treat infections and are prescribed by general practitioners, medical specialists and surgeons. Tendon injury has been associated with the use of these medications but the risk associated with newer fluoroquinolones has not been established. OBJECTIVES The aim of this systematic review was to evaluate the evidence from observational studies to determine the strength of the association between fluoroquinolone use and tendinopathy, and to identify risk factors for this complication. METHODS We searched MEDLINE, EMBASE and the Cochrane Collaboration from inception through May 2013 to identify observational studies focused on tendon injury and fluoroquinolones. Studies with original data were selected for inclusion following the PRISMA guidelines. Of the 560 abstracts screened, 16 relevant studies were independently rated by three authors (WW, AS, DC) using the Newcastle-Ottawa Quality Assessment Scale, and assigned a quality score out of 9. High-quality studies (i.e. scored 4.5 or higher) are summarized in detail in this article. Data were independently extracted by two authors (WW, AS). RESULTS Overall, 16 studies were included in our study. Eight were deemed to be of high quality and five specifically evaluated Achilles tendon rupture. In addition, three studies examined Achilles tendinitis, and three included tendon disorders (including any tendon rupture) as an outcome. Results from these studies suggest that individuals exposed to fluoroquinolones are at increased risk for Achilles tendon rupture, particularly within the first month following exposure to the drug (odds ratios ranged from 1.1 to 7.1). One study showed an increased risk of tendon rupture in those over 60 years of age. Five studies stated that individuals taking fluoroquinolones and oral corticosteroids are at increased risk for tendon injury compared with those taking fluoroquinolones alone. Four studies examined the differential effect of a limited number of fluoroquinolones. Ofloxacin had the highest risk of tendon injury in three of the studies. LIMITATIONS Included studies are observational in nature and rely on self-report, which may lead to misclassification or underestimation of tendon injury. CONCLUSIONS Observational studies showed an increased risk of tendon injury, including tendon rupture and tendinitis, with exposure to fluoroquinolone antibiotic therapy. Although this complication appears to be rare, concomitant corticosteroids increase the risk for tendon injury, which varies depending on the fluoroquinolone used.
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Binz J, Adler CK, So TY. The Risk of Musculoskeletal Adverse Events With Fluoroquinolones in Children: What Is the Verdict Now? Clin Pediatr (Phila) 2016; 55:107-10. [PMID: 26260402 DOI: 10.1177/0009922815599959] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Jonathan Binz
- Moses H. Cone Memorial Hospital, Greensboro, NC, USA
| | - Christina K Adler
- University of North Carolina Eshelman School of Pharmacy, Chapel Hill, NC, USA
| | - Tsz-Yin So
- Moses H. Cone Memorial Hospital, Greensboro, NC, USA
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Abstract
The role of inflammation in tendon disorders has long been a subject of considerable debate. Developments in our understanding of the basic science of inflammation have provided further insight into its potential role in specific forms of tendon disease, and the circumstances that may potentiate this. Such circumstances include excessive mechanical stresses on tendon and the presence of systemic inflammation associated with chronic diseases. In this chapter a brief review of the basic science of inflammation is provided and the influence that it may play on tendons is discussed.
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Affiliation(s)
- Cathy Speed
- Cambridge Centre for Health and Performance, Cambridge, UK. .,Fortius Clinic, London, UK. .,University of St Mark and St John, Plymouth, UK.
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Abstract
Fluoroquinolones (FQ) are powerful broad-spectrum antibiotics whose side effects include renal damage and, strangely, tendinopathies. The pathological mechanisms underlying these toxicities are poorly understood. Here, we show that the FQ drugs norfloxacin, ciprofloxacin, and enrofloxacin are powerful iron chelators comparable with deferoxamine, a clinically useful iron-chelating agent. We show that iron chelation by FQ leads to epigenetic effects through inhibition of α-ketoglutarate-dependent dioxygenases that require iron as a co-factor. Three dioxygenases were examined in HEK293 cells treated with FQ. At sub-millimolar concentrations, these antibiotics inhibited jumonji domain histone demethylases, TET DNA demethylases, and collagen prolyl 4-hydroxylases, leading to accumulation of methylated histones and DNA and inhibition of proline hydroxylation in collagen, respectively. These effects may explain FQ-induced nephrotoxicity and tendinopathy. By the same reasoning, dioxygenase inhibition by FQ was predicted to stabilize transcription factor HIF-1α by inhibition of the oxygen-dependent hypoxia-inducible transcription factor prolyl hydroxylation. In dramatic contrast to this prediction, HIF-1α protein was eliminated by FQ treatment. We explored possible mechanisms for this unexpected effect and show that FQ inhibit HIF-1α mRNA translation. Thus, FQ antibiotics induce global epigenetic changes, inhibit collagen maturation, and block HIF-1α accumulation. We suggest that these mechanisms explain the classic renal toxicities and peculiar tendinopathies associated with FQ antibiotics.
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Affiliation(s)
- Sujan Badal
- From the Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota 55905
| | - Yeng F Her
- From the Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota 55905
| | - L James Maher
- From the Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota 55905
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Baugé C, Leclercq S, Conrozier T, Boumediene K. TOL19-001 reduces inflammation and MMP expression in monolayer cultures of tendon cells. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:217. [PMID: 26156631 PMCID: PMC4495633 DOI: 10.1186/s12906-015-0748-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 06/25/2015] [Indexed: 12/16/2022]
Abstract
Background Tendinopathies are tendon conditions associated with degeneration and disorganization of the matrix collagen fibers, tendon cells apoptosis and inflammation through up-regulation of proinflammatory cytokines, matrix metalloproteinase (MMP) expression, and prostaglandin E2 (PGE2) production. Currently, the pharmacological treatment is mainly based on non-steroidal anti-inflammatory drugs (NSAIDs) use and corticosteroid injections, which both can lead to numerous side effects for patients. TOL19-001 is a diet supplementary composed mostly of spirulina and glucosamine sulfate whose antioxidant properties could be helpful to treat tendinopathies while avoiding taking NSAIDs. In this study we developed an in vitro model of tendinopathy in order to evaluate the therapeutic potential of TOL19-001. Methods Tendon cells were cultured on monolayer and treated with interleukin-1β (IL-1β) or ciprofloxacin (CIP), and then, MMPs, PGE2 and collagen expression was evaluated by RT-PCR or Elisa. In addition, a cotreatment with increased doses of TOL19-001 was done. Toxicity of TOL19-001 was evaluated using a metabolic activity assay. Results This study demonstrates that IL-1β mimics some aspects of tendinopathies with PGE2 induction, MMP expression (mostly MMP1 and MMP3), and increases of type III/I collagen ratio. CIP, meanwhile, leads to an increase of MMP2 and p65 mRNA, whereas it reduces TIMP1 expression. Scleraxis expression was also increased by CIP whereas it was decreased by IL-1β treatment. Besides, TOL19-001 cotreatment suppresses tendon cell inflammation in vitro, marked by the downregulation of PGE2, MMPs and type III collagen in IL-1β stimulated-cells. TOL19-001 also represses CIP induced-changes. Conclusions These findings indicate that TOL19-001 exerts anti-inflammatory effects on tendon cells, which might explain why TOL19-001 diet may improve tendon function in patients with tendon injury. Future research is required to determine TOL19-001 effect on injured or overused tendons in vivo.
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DeWolf MC, Warhold LG. Ciprofloxacin-Induced Extensor Tendon Rupture in the Hand: A Case Report. JBJS Case Connect 2015; 5:e30. [PMID: 29252438 DOI: 10.2106/jbjs.cc.n.00059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
CASE An eighty-one-year-old man had begun taking ciprofloxacin one week prior to the sudden inability to extend the metacarpophalangeal joint of the ring finger of the dominant right hand. He presented to us three months after he initially noticed this finding. CONCLUSION Ciprofloxacin-induced tendon rupture appears to be possible in the extensor digitorum communis tendons of the hand. Our patient was managed operatively and had a good functional outcome.
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Affiliation(s)
- Matthew C DeWolf
- Department of Orthopaedics, Dartmouth-Hitchcock Medical Center, 1 Medical Center Drive, Lebanon, NH 03756.
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Seidel J, Clarke T, Mathew B. To cipro or not to cipro: bilateral achilles ruptures with the use of quinolones. J Am Podiatr Med Assoc 2015; 105:185-8. [PMID: 25815660 DOI: 10.7547/0003-0538-105.2.185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Ciprofloxacin and other fluoroquinolones are commonly used broad-spectrum antimicrobial agents for treating bacterial infections. This class of antibiotic drugs has uncommon adverse effects that include tendonitis, tendon ruptures, and other tendon abnormalities. We describe a patient with spontaneous bilateral complete Achilles tendon rupture after ciprofloxacin treatment. Surgical repair was performed successfully, and the patient completed physical rehabilitation without incident. Care should be exercised when selecting pharmaceutical agents to maintain a positive benefit-to-risk balance.
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Juras V, Winhofer Y, Szomolanyi P, Vosshenrich J, Hager B, Wolf P, Weber M, Luger A, Trattnig S. Multiparametric MR Imaging Depicts Glycosaminoglycan Change in the Achilles Tendon during Ciprofloxacin Administration in Healthy Men: Initial Observation. Radiology 2015; 275:763-71. [PMID: 25654669 DOI: 10.1148/radiol.15140484] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To determine if quantitative magnetic resonance (MR) imaging techniques (sodium MR imaging, glycosaminoglycan [GAG] chemical exchange saturation transfer [CEST], and T2* mapping) could be used as potential markers for biochemical changes in the Achilles tendon induced by ciprofloxacin intake. MATERIALS AND METHODS The ethics committee of the Medical University of Vienna approved the protocol (number 1225/2012), and all patients gave written informed consent. Fourteen ankles from seven men (mean age, 32 years ± 12 [standard deviation]) were included in the study. All patients underwent 7-T MR imaging examinations of the Achilles tendon at baseline and 10 days and 5 months after ciprofloxacin intake. Sodium signal and T2* maps were acquired with the variable echo-time sequence and the GAG CEST values were acquired with a three-dimensional radiofrequency spoiled gradient-recalled-echo sequence. RESULTS The mean sodium signal was significantly decreased by 25% in the whole tendon (from baseline to 10 days after ciprofloxacin intake, 130 arbitrary units [au] ± 8 to 98 au ± 5, respectively; P = .023) and returned to baseline after 5 months (116 au ± 10), as observed also at the tendon insertion (baseline, 10 days after ciprofloxacin intake, and 5 months after ciprofloxacin intake, 134 au ± 8, 105 au ± 5, and 119 au ± 9, respectively; P = .034). The mean GAG CEST value in the whole tendon was parallel to the sodium signal with a decrease from baseline to 10 days after ciprofloxacin intake, 4.74% ± 0.75 to 4.50% ± 0.23, respectively (P = .028) and an increase at 5 months after ciprofloxacin intake to 4.88% ± 1.02. CONCLUSION In conclusion, this study demonstrates a ciprofloxacin-induced reversible reduction of the normalized sodium MR imaging signal and the GAG CEST effect in the Achilles tendon of healthy volunteers. Changes in sodium MR imaging and GAG CEST in men may reflect a decrease of GAG content in the Achilles tendon after ciprofloxacin intake.
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Affiliation(s)
- Vladimir Juras
- From the MR Centre of Excellence, Department of Biomedical Imaging and Image-Guided Therapy 7F (V.J., P.S., J.V., B.H., M.W., S.T.), and Department of Internal Medicine III, Division of Endocrinology and Metabolism (Y.W., P.W., A.L.), Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria; and Institute of Measurement Science, Slovak Academy of Sciences, Bratislava, Slovakia (V.J., P.S.)
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Henderson AL, Latimer C, Millis DL. Rehabilitation and Physical Therapy for Selected Orthopedic Conditions in Veterinary Patients. Vet Clin North Am Small Anim Pract 2015; 45:91-121. [DOI: 10.1016/j.cvsm.2014.09.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Drug-induced tendinopathy: From physiology to clinical applications. Joint Bone Spine 2014; 81:485-92. [DOI: 10.1016/j.jbspin.2014.03.022] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2014] [Indexed: 11/22/2022]
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Fox AJS, Schär MO, Wanivenhaus F, Chen T, Attia E, Binder NB, Otero M, Gilbert SL, Nguyen JT, Chaudhury S, Warren RF, Rodeo SA. Fluoroquinolones impair tendon healing in a rat rotator cuff repair model: a preliminary study. Am J Sports Med 2014; 42:2851-9. [PMID: 25143490 DOI: 10.1177/0363546514545858] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Recent studies suggest that fluoroquinolone antibiotics predispose tendons to tendinopathy and/or rupture. However, no investigations on the reparative capacity of tendons exposed to fluoroquinolones have been conducted. HYPOTHESIS Fluoroquinolone-treated animals will have inferior biochemical, histological, and biomechanical properties at the healing tendon-bone enthesis compared with controls. STUDY DESIGN Controlled laboratory study. METHODS Ninety-two rats underwent rotator cuff repair and were randomly assigned to 1 of 4 groups: (1) preoperative (Preop), whereby animals received fleroxacin for 1 week preoperatively; (2) pre- and postoperative (Pre/Postop), whereby animals received fleroxacin for 1 week preoperatively and for 2 weeks postoperatively; (3) postoperative (Postop), whereby animals received fleroxacin for 2 weeks postoperatively; and (4) control, whereby animals received vehicle for 1 week preoperatively and for 2 weeks postoperatively. Rats were euthanized at 2 weeks postoperatively for biochemical, histological, and biomechanical analysis. All data were expressed as mean ± standard error of the mean (SEM). Statistical comparisons were performed using either 1-way or 2-way ANOVA, with P < .05 considered significant. RESULTS Reverse transcriptase quantitative polymerase chain reaction (RTqPCR) analysis revealed a 30-fold increase in expression of matrix metalloproteinase (MMP)-3, a 7-fold increase in MMP-13, and a 4-fold increase in tissue inhibitor of metalloproteinases (TIMP)-1 in the Pre/Postop group compared with the other groups. The appearance of the healing enthesis in all treated animals was qualitatively different than that in controls. The tendons were friable and atrophic. All 3 treated groups showed significantly less fibrocartilage and poorly organized collagen at the healing enthesis compared with control animals. There was a significant difference in the mode of failure, with treated animals demonstrating an intrasubstance failure of the supraspinatus tendon during testing. In contrast, only 1 of 10 control samples failed within the tendon substance. The healing enthesis of the Pre/Postop group displayed significantly reduced ultimate load to failure compared with the Preop, Postop, and control groups. There was no significant difference in load to failure in the Preop group compared with the Postop group. Pre/Postop animals demonstrated significantly reduced cross-sectional area compared with the Postop and control groups. There was also a significant reduction in area between the Preop and control groups. CONCLUSION In this preliminary study, fluoroquinolone treatment negatively influenced tendon healing. CLINICAL RELEVANCE These findings indicate that there was an active but inadequate repair response that has potential clinical implications for patients who are exposed to fluoroquinolones before tendon repair surgery.
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Affiliation(s)
- Alice J S Fox
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, New York, New York, USA
| | - Michael O Schär
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, New York, New York, USA
| | - Florian Wanivenhaus
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, New York, New York, USA
| | - Tony Chen
- Laboratory for Soft Tissue Research, Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
| | - Erik Attia
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, New York, New York, USA
| | - Nikolaus B Binder
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, New York, New York, USA
| | - Miguel Otero
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, New York, New York, USA
| | - Susannah L Gilbert
- Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
| | - Joseph T Nguyen
- Healthcare Research Institute, Hospital for Special Surgery, New York, New York, USA
| | - Salma Chaudhury
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, New York, New York, USA
| | - Russell F Warren
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, New York, New York, USA
| | - Scott A Rodeo
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, New York, New York, USA
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Bai ZL, Chen Q, Yang SD, Zhang F, Wang HY, Yang DL, Ding WY. Toxic effects of levofloxacin on rat annulus fibrosus cells: an in-vitro study. Med Sci Monit 2014; 20:2205-12. [PMID: 25380657 PMCID: PMC4237079 DOI: 10.12659/msm.892610] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 10/28/2014] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Fluoroquinolones are in wide clinical use as safe and effective antibiotics. Articular cartilage, tendons, and epiphyseal growth plates have been recognized as targets of fluoroquinolone-induced connective tissue toxicity. However, the effects of fluoroquinolones on annulus fibrosus (AF) cells are still unknown. MATERIAL/METHODS The main objective of this study was to investigate the effects of levofloxacin, a typical fluoroquinolone antibiotic drug, on rat AF cells in vitro. Rat annulus fibrosus (RAF) cells were treated with levofloxacin at different concentrations (0, 10, 20, 30, 40, 60, 80, and 90 μg/ml) and were assessed to determine the possible cytotoxic effects of levofloxacin. Inverted phase-contrast microscopy was used to accomplish the morphological observation of apoptosis of treated cells. Western blot and real-time quantitative RT-PCR (qPCR) was used to explore the expression of active caspase-3 and MMP-3. Flow cytometry was used to measure the apoptotic incidences. RESULTS Our study showed that levofloxacin, with concentrations at 30, 60, and 90 μg/ml, induced dose-dependent RAF cell apoptosis and higher expression of caspase-3 and MMP-3. More apoptotic cells were observed by inverted phase-contrast microscopy. Moreover, levofloxacin increased the activity of caspase-3, and it also reduced cell viability with different concentrations ranging from 10 to 80 μg/ml. CONCLUSIONS Our study results suggest that levofloxacin has cytotoxic effects on RAF cells, characterized by enhancing apoptosis and reducing cell viability, and indicate a potential toxic effect of fluoroquinolones on RAF cells.
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Affiliation(s)
- Zhi-Long Bai
- Department of Spinal Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qian Chen
- Department of Spinal Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Si-Dong Yang
- Department of Spinal Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Feng Zhang
- Department of Rehabilitation Medicine, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Hai-Ying Wang
- Department of Spinal Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Da-Long Yang
- Department of Spinal Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Wen-Yuan Ding
- Department of Spinal Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Provincial Key Laboratory of Orthopedic Biomechanics, Shijiazhuang, Hebei, China
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44
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Abstract
Fluoroquinolone-induced tendinopathy most commonly affects the Achilles tendon; however, involvement of several other tendons has been described. This is a case report of ciprofloxacin-induced tendinopathy of the gluteal tendons with MRI findings. An obese 25-year-old woman with no significant past medical history was diagnosed with acute pyelonephritis and was treated with intravenous ciprofloxacin. Shortly after her first dose of ciprofloxacin, she developed severe left hip pain and decreased range of motion. MRI of the hips showed bilateral tendinopathy of the gluteal muscle insertion. A diagnosis of ciprofloxacin-induced tendinopathy was made based on her MRI and a Naranjo score of 7. Ciprofloxacin was stopped and her pain quickly resolved. Fluoroquinolones cause tendinopathy in 0.14 % to 0.4 % of patients using these agents. Fluoroquinolone-associated tendinopathy is a serious adverse reaction that can affect many tendons and should be considered in any patient presenting with new musculoskeletal complaints and in whom there is a history of fluoroquinolone use within the preceding 6 months.
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Affiliation(s)
- Kaumakaokalani Shimatsu
- Department of Internal Medicine, University of California at Davis Internal Medicine Residency Program, 3100 PSSB 4150 V St., Sacramento, CA, 95817, USA
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45
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Jacobs JC, Shea KG, Oxford JT, Carey JL. Fluoroquinolone use in a child associated with development of osteochondritis dissecans. BMJ Case Rep 2014; 2014:bcr-2014-204544. [PMID: 25228675 DOI: 10.1136/bcr-2014-204544] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Several aetiological theories have been proposed for the development of osteochondritis dissecans. Cartilage toxicity after fluoroquinolone use has been well documented in vitro. We present a case report of a 10-year-old child who underwent a prolonged 18-month course of ciprofloxacin therapy for chronic urinary tract infections. This patient later developed an osteochondritis dissecans lesion of the medial femoral condyle. We hypothesise that the fluoroquinolone therapy disrupted normal endochondral ossification, resulting in development of osteochondritis dissecans. The aetiology of osteochondritis dissecans is still unclear, and this case describes an association between fluoroquinolone use and osteochondritis dissecans development.
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Affiliation(s)
- John C Jacobs
- University of Utah School of Medicine, Salt Lake City, Utah
| | - Kevin G Shea
- St. Luke's Boise Medical Center, Boise, Idaho, USA Department of Orthopedics, University of Utah, Salt Lake City, Utah, USA
| | | | - James L Carey
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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46
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Magnan B, Bondi M, Pierantoni S, Samaila E. The pathogenesis of Achilles tendinopathy: a systematic review. Foot Ankle Surg 2014; 20:154-9. [PMID: 25103700 DOI: 10.1016/j.fas.2014.02.010] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Revised: 02/07/2014] [Accepted: 02/23/2014] [Indexed: 02/04/2023]
Abstract
Achilles tendinopathy is a degenerative, not an inflammatory, condition. It is prevalent in athletes involved in running sports. A systematic literature review on Achilles tendon tendinopathy has been performed according to the intrinsic (age, sex, body weight, tendon temperature, systemic diseases, muscle strength, flexibility, previous injuries and anatomical variants, genetic predisposition and blood supply) and extrinsic risk factors (drugs and overuse), which can cause tendon suffering and degeneration. Different theories have been found: Neurogenic, Angiogenic, Impingement and "Iceberg" Hypotheses. Multiple databases were utilized for articles published between 1964 and 2013. The different hypothesis were analyzed, differently considering those concerning the pathogenesis of tendinopathy and those concerning the etiology of complaints in patients. This review of the literature demonstrates the heterogeneity of Achilles tendinopathy pathogenesis. Various risk factors have been identified and have shown an interaction between them such as genes, age, circulating and local cytokine production, sex, biomechanics and body composition.
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Affiliation(s)
- Bruno Magnan
- Orthopaedic Department, University of Verona (Italy), Surgical Center "P. Confortini", Piazzale A. Stefani 1, 37126 Verona, Italy.
| | - Manuel Bondi
- Orthopaedic Department, University of Verona (Italy), Surgical Center "P. Confortini", Piazzale A. Stefani 1, 37126 Verona, Italy
| | - Silvia Pierantoni
- Orthopaedic Department, University of Verona (Italy), Surgical Center "P. Confortini", Piazzale A. Stefani 1, 37126 Verona, Italy
| | - Elena Samaila
- Orthopaedic Department, University of Verona (Italy), Surgical Center "P. Confortini", Piazzale A. Stefani 1, 37126 Verona, Italy
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Kawtharani F, Masrouha KZ, Afeiche N. Bilateral Achilles Tendon Ruptures Associated With Ciprofloxacin Use in the Setting of Minimal Change Disease: Case Report and Review of the Literature. J Foot Ankle Surg 2014; 55:276-8. [PMID: 25189336 DOI: 10.1053/j.jfas.2014.07.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Indexed: 02/03/2023]
Abstract
Fluoroquinolones are widely used antibiotics; however, numerous side effects have been reported in published studies, including a spectrum of tendinopathies, affecting numerous anatomic sites. Several risk factors have been identified, including advanced age (>60 years), corticosteroid use, renal failure or dialysis, female sex, and nonobesity. We present the case of an elderly male with minimal change disease treated with glucocorticoids and acute kidney injury, who sustained spontaneous nontraumatic bilateral Achilles tendon tears 4 days after initiating ciprofloxacin.
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Affiliation(s)
- Firas Kawtharani
- Resident, Division of Orthopaedic Surgery, Department of Surgery, American University of Beirut Medical Center, Beirut, Lebanon
| | - Karim Z Masrouha
- Resident, Division of Orthopaedic Surgery, Department of Surgery, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Nadim Afeiche
- Clinical Senior Lecturer, Division of Orthopaedic Surgery, Department of Surgery, American University of Beirut Medical Center, Beirut, Lebanon
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48
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Sugimoto T, Kaneko H, Deji N, Koya D. Levofloxacin-induced Achilles tendon rupture in a patient with systemic microscopic polyangiitis. Mod Rheumatol 2014. [DOI: 10.3109/s10165-005-0393-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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49
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Alphonsa BM, Sudheesh Kumar PT, Praveen G, Biswas R, Chennazhi KP, Jayakumar R. Antimicrobial Drugs Encapsulated in Fibrin Nanoparticles for Treating Microbial Infested Wounds. Pharm Res 2013; 31:1338-51. [DOI: 10.1007/s11095-013-1254-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 11/10/2013] [Indexed: 11/27/2022]
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50
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Gladue H, Kaplan MJ. Achilles tendinopathy after treatment with ophthalmic moxifloxacin. J Rheumatol 2013; 40:104-5. [PMID: 23280174 DOI: 10.3899/jrheum.120944] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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