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Nagy AL, Ardelean S, Chapuis RJJ, Bouillon J, Pivariu D, De Felice B, Bertazzo M, Fossati P, Spicer LJ, Dreanca AI, Caloni F. Zootoxins and Domestic Animals: A European View. Toxins (Basel) 2024; 16:48. [PMID: 38251264 PMCID: PMC10818608 DOI: 10.3390/toxins16010048] [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: 11/04/2023] [Revised: 01/12/2024] [Accepted: 01/14/2024] [Indexed: 01/23/2024] Open
Abstract
Zootoxins are produced by venomous and poisonous species and are an important cause of poisoning in companion animals and livestock in Europe. Little information about the incidence of zootoxin poisoning is available in Europe, with only a few case reports and review papers being published. This review presents the most important zootoxins produced by European venomous and poisonous animal species responsible for poisoning episodes in companion animals and livestock. The main zootoxin-producing animal species, components of the toxins/venoms and their clinical effects are presented. The most common zootoxicoses involve terrestrial zootoxins excreted by the common toad, the fire salamander, the pine processionary caterpillar, and vipers. The lack of a centralized reporting/poison control system in Europe makes the evaluation of the epidemiology of zootoxin-induced poisonings extremely difficult. Even if there are many anecdotal reports in the veterinary community about the exposure of domestic animals to terrestrial and marine zootoxins, the number of published papers regarding these toxicoses is low. Climate change and its consequences regarding species distribution and human-mediated transportation are responsible for the emerging nature of some intoxications in which zootoxins are involved. Although new venomous or poisonous animal species have emerged in regions where they were previously unreported, zootoxins produced by native species remain the main concern in Europe. The diversity of poisonous and venomous animal species and the emerging nature of certain poisonings warrant the continuous update to such knowledge by veterinary professionals and animal owners. This review offers an overview about zootoxin-related poisonings in domestic animals in Europe and also provides important information from a health perspective.
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Affiliation(s)
- Andras-Laszlo Nagy
- Department of Biomedical Sciences, Ross University School of Veterinary Medicine, Basseterre P.O. Box 334, Saint Kitts and Nevis; (A.-L.N.); (R.J.J.C.)
| | - Sabrina Ardelean
- Department of Clinical Sciences, Ross University School of Veterinary Medicine, Basseterre P.O. Box 334, Saint Kitts and Nevis; (S.A.); (J.B.)
| | - Ronan J. J. Chapuis
- Department of Biomedical Sciences, Ross University School of Veterinary Medicine, Basseterre P.O. Box 334, Saint Kitts and Nevis; (A.-L.N.); (R.J.J.C.)
| | - Juliette Bouillon
- Department of Clinical Sciences, Ross University School of Veterinary Medicine, Basseterre P.O. Box 334, Saint Kitts and Nevis; (S.A.); (J.B.)
| | - Dalma Pivariu
- Department of Toxicology, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania; (D.P.); (A.I.D.)
| | - Beatrice De Felice
- Department of Environmental Science and Policy (ESP), Università degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy; (B.D.F.); (M.B.); (P.F.)
| | - Mirko Bertazzo
- Department of Environmental Science and Policy (ESP), Università degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy; (B.D.F.); (M.B.); (P.F.)
| | - Paola Fossati
- Department of Environmental Science and Policy (ESP), Università degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy; (B.D.F.); (M.B.); (P.F.)
| | - Leon J. Spicer
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA;
| | - Alexandra Iulia Dreanca
- Department of Toxicology, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania; (D.P.); (A.I.D.)
| | - Francesca Caloni
- Department of Environmental Science and Policy (ESP), Università degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy; (B.D.F.); (M.B.); (P.F.)
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Ding MC, Tsai YT, Tsai MS, Hsu CM, Chang GH. Safe Removal of a Centipede From the Ear By Using an Innovative Practicable Method: A Case Report. EAR, NOSE & THROAT JOURNAL 2023; 102:NP123-NP125. [PMID: 33587651 DOI: 10.1177/0145561321995010] [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: 11/17/2022] Open
Abstract
Arthropods may become lodged inside the ear and cause considerable emotional and physical trauma. Cases of centipedes being lodged in the external auditory canal have rarely been reported. In this article, we present the case of woman who had a centipede lodged inside her right external auditory canal. Removal using a topical local anesthetic can lead to vigorous activity of the centipede, which can cause harm to the patient and clinicians. Therefore, we developed and successfully applied a practicable method that involved using a modified plastic bottle for safe centipede removal. In conclusion, centipedes can express distinct and threatening behavior, and clinicians should pay attention to the activity of the lodged centipede and possibly use the proposed method to safely remove it.
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Affiliation(s)
- Meng-Chang Ding
- Department of Otolaryngology-Head and Neck Surgery, 125573Chang Gung Memorial Hospital, Chiayi
| | - Yao-Te Tsai
- Department of Otolaryngology-Head and Neck Surgery, 125573Chang Gung Memorial Hospital, Chiayi
| | - Ming-Shao Tsai
- Department of Otolaryngology-Head and Neck Surgery, 125573Chang Gung Memorial Hospital, Chiayi.,Graduate Institute of Clinical Medical Sciences, College of Medicine, 125573Chang Gung University, Taoyuan
| | - Cheng-Ming Hsu
- Department of Otolaryngology-Head and Neck Surgery, 125573Chang Gung Memorial Hospital, Chiayi.,Graduate Institute of Clinical Medical Sciences, College of Medicine, 125573Chang Gung University, Taoyuan
| | - Geng-He Chang
- Department of Otolaryngology-Head and Neck Surgery, 125573Chang Gung Memorial Hospital, Chiayi.,Graduate Institute of Clinical Medical Sciences, College of Medicine, 125573Chang Gung University, Taoyuan
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Özer EE, Aksam B, Sönmez U, Özdemir HÖ. Hyperbaric oxygen therapy of soft tissue necrosis due to centipede bite in a patient with diabetes. J Wound Care 2022; 31:586-588. [PMID: 35797257 DOI: 10.12968/jowc.2022.31.7.586] [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: 11/11/2022]
Abstract
OBJECTIVE The purpose of this study is to demonstrate that hyperbaric oxygen therapy (HBOT) is an option for the management of rapidly progressive tissue necrosis after centipede bites in patients with diabetes. METHOD In this case report, we introduce a patient with diabetes with soft tissue necrosis and secondary infection due to a centipede bite, who was treated with a multidisciplinary approach including HBOT. RESULTS In this case study, HBOT, applied in the treatment of rapidly developing cellulitis after a centipede bite in a patient with diabetes, accelerated wound healing. Deep soft tissue infection stopped progression to necrotising fasciitis and prevented possible amputation, and facilitated the patient's return to social life in a short time. CONCLUSION HBOT can be used in combination with other local and systemic, due to its anti-venom effect and treatment of extremity-threatening infection.
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Affiliation(s)
- Elif Ebru Özer
- University of Health Sciences, Bozyaka Training and Research Hospital, Department of Hyperbaric Medicine, Turkey
| | - Berrak Aksam
- University of Health Sciences, Bozyaka Training and Research Hospital, Department of Plastic Reconstructive and Aesthetic Surgery, Turkey
| | - Ufuk Sönmez
- University of Health Sciences, Bozyaka Training and Research Hospital, Department of Infection Disease, Turkey
| | - Hülya Özkan Özdemir
- University of Health Sciences, Bozyaka Training and Research Hospital, Department of Infection Disease, Turkey
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Centipede Venom: A Potential Source of Ion Channel Modulators. Int J Mol Sci 2022; 23:ijms23137105. [PMID: 35806107 PMCID: PMC9266919 DOI: 10.3390/ijms23137105] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/22/2022] [Accepted: 06/24/2022] [Indexed: 02/06/2023] Open
Abstract
Centipedes are one of the most ancient and successful living venomous animals. They have evolved spooky venoms to deter predators or hunt prey, and are widely distributed throughout the world besides Antarctica. Neurotoxins are the most important virulence factor affecting the function of the nervous system. Ion channels and receptors expressed in the nervous system, including NaV, KV, CaV, and TRP families, are the major targets of peptide neurotoxins. Insight into the mechanism of neurotoxins acting on ion channels contributes to our understanding of the function of both channels and centipede venoms. Meanwhile, the novel structure and selective activities give them the enormous potential to be modified and exploited as research tools and biological drugs. Here, we review the centipede venom peptides that act on ion channels.
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Haddad V, de Amorim PCH, da Cruz CR, Amaral ALS. Centipede envenomation (Chilopoda): Case report. Rev Soc Bras Med Trop 2022; 55:e0601. [PMID: 35674561 PMCID: PMC9176727 DOI: 10.1590/0037-8682-0601-2021] [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: 10/18/2021] [Accepted: 03/25/2022] [Indexed: 11/30/2022] Open
Abstract
Centipedes are venomous arthropods that have an elongated body, divided into many segments, presenting a pair of legs in each segment, adapted pairs of paws that simulate fangs and inject venom causing intense pain, with local erythema and edema, and rarely, blisters and skin necrosis. We present the case of a young woman pricked on her upper lip with intense swelling and local pain and discuss the real danger of envenomation and the therapeutic measures that should be taken.
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Affiliation(s)
- Vidal Haddad
- Universidade Estadual Paulista, Faculdade de Medicina de Botucatu, Disciplina de Dermatologia, Botucatu, SP, Brasil
| | - Paulo Cezar Haddad de Amorim
- Universidade Estadual Paulista, Faculdade de Medicina de Botucatu, Disciplina de Dermatologia, Botucatu, SP, Brasil
| | - Carolina Rassi da Cruz
- Universidade Estadual Paulista, Faculdade de Medicina de Botucatu, Disciplina de Dermatologia, Botucatu, SP, Brasil
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Sudharson S, Kalic T, Hafner C, Breiteneder H. Newly defined allergens in the WHO/IUIS Allergen Nomenclature Database during 01/2019-03/2021. Allergy 2021; 76:3359-3373. [PMID: 34310736 PMCID: PMC9290965 DOI: 10.1111/all.15021] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 07/21/2021] [Indexed: 01/03/2023]
Abstract
The WHO/IUIS Allergen Nomenclature Database (http://allergen.org) provides up‐to‐date expert‐reviewed data on newly discovered allergens and their unambiguous nomenclature to allergen researchers worldwide. This review discusses the 106 allergens that were accepted by the Allergen Nomenclature Sub‐Committee between 01/2019 and 03/2021. Information about protein family membership, patient cohorts, and assays used for allergen characterization is summarized. A first allergenic fungal triosephosphate isomerase, Asp t 36, was discovered in Aspergillus terreus. Plant allergens contained 1 contact, 38 respiratory, and 16 food allergens. Can s 4 from Indian hemp was identified as the first allergenic oxygen‐evolving enhancer protein 2 and Cic a 1 from chickpeas as the first allergenic group 4 late embryogenesis abundant protein. Among the animal allergens were 19 respiratory, 28 food, and 3 venom allergens. Important discoveries include Rap v 2, an allergenic paramyosin in molluscs, and Sal s 4 and Pan h 4, allergenic fish tropomyosins. Paramyosins and tropomyosins were previously known mainly as arthropod allergens. Collagens from barramundi, Lat c 6, and salmon, Sal s 6, were the first members from the collagen superfamily added to the database. In summary, the addition of 106 new allergens to the previously listed 930 allergens reflects the continuous linear growth of the allergen database. In addition, 17 newly described allergen sources were included.
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Affiliation(s)
- Srinidhi Sudharson
- Department of Dermatology University Hospital St. Poelten Karl Landsteiner University of Health Sciences St. Poelten Austria
- Division of Medical Biotechnology Department of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Tanja Kalic
- Department of Dermatology University Hospital St. Poelten Karl Landsteiner University of Health Sciences St. Poelten Austria
- Division of Medical Biotechnology Department of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Christine Hafner
- Department of Dermatology University Hospital St. Poelten Karl Landsteiner University of Health Sciences St. Poelten Austria
| | - Heimo Breiteneder
- Division of Medical Biotechnology Department of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
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Changratanakorn C, Fasawang N, Chenthanakit B, Tansanthong P, Mapairoje C, Tunud R, Pipopwongpisan A, Wittayachamnankul B. Effectiveness of antibiotic prophylaxis in patients with centipede stings: a randomized controlled trial. Clin Exp Emerg Med 2021; 8:43-47. [PMID: 33845522 PMCID: PMC8041584 DOI: 10.15441/ceem.20.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/01/2020] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE Centipede stings are a common problem in tropical countries. Current treatment guidelines do not include recommendations for antibiotic prophylaxis to prevent the associated bacterial infection since no previous study has assessed the effectiveness of antibiotic treatment in patients bitten by centipedes. Thus, this study aimed to compare the effectiveness of antibiotic prophylaxis over placebo for the skin infections that occur after a centipede sting. METHODS In this randomized, double-blind, multi-center clinical trial conducted in the emergency departments in four hospitals, patients with any history of a centipede sting were prospectively enrolled and divided randomly into two groups. One group received dicloxacillin and the other a placebo. The primary outcome was the incidence of wound infection 3 to 5 days after the centipede sting. RESULTS From December 2014 to October 2015, a total of 83 patients were enrolled in the study and were randomized into antibiotic (n=43) and placebo (n=40) groups. Two patients in the antibiotic group developed wound infections, while none showed wound infection in the placebo group (5% vs. 0%). The wound infection rate did not differ significantly between the two groups (P=0.496). CONCLUSION Antibiotic prophylaxis may be unnecessary in cases of centipede stings. Proper wound care is an adequate and appropriate treatment for patients with centipede stings. However, the patient should be re-evaluated for detection of secondary bacterial infection.
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Affiliation(s)
- Chanon Changratanakorn
- Department of Emergency Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Napasawan Fasawang
- Department of Emergency Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Boriboon Chenthanakit
- Department of Emergency Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Pakpoom Tansanthong
- Department of Emergency Medicine, Wiang Nong Long Hospital, Lamphun, Thailand
| | | | - Ratree Tunud
- Department of Emergency Medicine, Li Hospital, Lamphun, Thailand
| | | | - Borwon Wittayachamnankul
- Department of Emergency Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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Niruntarai S, Rueanpingwang K, Othong R. Patients with centipede bites presenting to a university hospital in Bangkok: a 10-year retrospective study. Clin Toxicol (Phila) 2021; 59:721-726. [PMID: 33475426 DOI: 10.1080/15563650.2020.1865543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
INTRODUCTION Centipede envenomation occurs commonly in tropical and subtropical countries. In most cases, centipede envenomation causes benign clinical manifestations. Serious complications are reported occasionally. Clinical studies regarding centipede envenomation are limited to case reports and case series. This study aimed to determine the prevalence and clinical characteristics of centipede bites in Bangkok, Thailand. METHODS This was a retrospective medical record review study. We included patients who were clearly envenomated by a centipede presenting to the emergency department of a tertiary university hospital in Bangkok from January 1, 2006, to December 31, 2015. Data were collected on demographics, details of the exposure, signs, symptoms, treatment, and complications of envenomation. RESULTS A total of 245 cases were included. The prevalence of centipede bite was 0.0367%. The majority were female (56.7%). The median age was 34.6 years (range: 1 month to 90 years). The number of envenomations was highest from October through December. Feet (38.3%) and hands (19.1%) were the parts of the body most often envenomated. Local effects were common with 99.5% of patients having localized pain and 87% having local swelling at the bite site. In terms of systemic effects, urticarial rash (5.7%) and fever (4.1%) were most frequently observed. Twelve cases (5%) had clinical pictures compatible with anaphylaxis. For pain management, all patients who had pain received analgesic drugs, while 29.7% were injected with local anesthesia. Antibiotics, antihistamines, and steroids were prescribed in 53.9%, 20.4%, and 10.2% of cases, respectively. No deaths occurred in this study. CONCLUSIONS Even though the location of our hospital is in a metropolitan city in Thailand, there were centipede bites every month, especially during the last three months of each year. Nearly all patients had local effects. In contrast, serious complications such as anaphylaxis and systemic infection only occurred occasionally.
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Affiliation(s)
- Supa Niruntarai
- Department of Emergency Medicine, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Dusit, Bangkok, Thailand
| | | | - Rittirak Othong
- Department of Emergency Medicine, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Dusit, Bangkok, Thailand
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Puzzo A, Pari C, Bettinelli G, Raggini F, Paderni S, Belluati A. An unusual two-stage infection following a scolopendra bite. ACTA BIO-MEDICA : ATENEI PARMENSIS 2020; 91:e2020009. [PMID: 33559643 PMCID: PMC7944685 DOI: 10.23750/abm.v91i14-s.10783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 01/19/2021] [Indexed: 11/23/2022]
Abstract
Background: Scolopendrae represent the best-known genus of centipedes. They are nocturnal general feeders with strong mandibles and venomous fangs which leave visible puncture marks at the bite site. The bite accidents occur during the warm rainy season and mostly take place on the extremities. Following the bite, the most common symptoms are mild: limited localized erythema, pain, swelling, local itching and burning sensation. However, more severe local and systemic sequelae can not be excluded. Method: we report the case of a 63-year-old man with fever and a widespread edema of the right hand and forearm, happened as a consequence of a Scolopendra Subspinipes bite. During the weeks following the bite, he developed a severe unusual superinfection via hematogenous dissemination, which required a double surgical debridement and a targeted intravenous antibiotic therapy. Results: the complete clinical recovery took over two months. Conclusions: Many victims of Scolopendra envenomation do not seek medical attention since most symptoms will resolve spontaneously. The case presented falls within the spectrum of those rare cases which escalate due to bacterial superinfection.
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Affiliation(s)
- Agnese Puzzo
- Orthopaedic and Trauma Department, Hospital Santa Maria delle Croci, Ravenna, Italy.
| | | | - Giulia Bettinelli
- Orthopaedic and Trauma Department, University Vita-Salute San Raffaele, Milan, Italy.
| | - Filippo Raggini
- Orthopaedic and Trauma Department, University Vita-Salute San Raffaele, Milan, Italy.
| | - Stefania Paderni
- Orthopaedic and Trauma Department, Hospital Santa Maria delle Croci, Ravenna, Italy.
| | - Alberto Belluati
- Orthopaedic and Trauma Department, Hospital Santa Maria delle Croci, Ravenna, Italy.
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Chu Y, Qiu P, Yu R. Centipede Venom Peptides Acting on Ion Channels. Toxins (Basel) 2020; 12:toxins12040230. [PMID: 32260499 PMCID: PMC7232367 DOI: 10.3390/toxins12040230] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 03/30/2020] [Accepted: 04/01/2020] [Indexed: 12/19/2022] Open
Abstract
Centipedes are among the oldest venomous arthropods that use their venom to subdue the prey. The major components of centipede venom are a variety of low-molecular-weight peptide toxins that have evolved to target voltage-gated ion channels to interfere with the central system of prey and produce pain or paralysis for efficient hunting. Peptide toxins usually contain several intramolecular disulfide bonds, which confer chemical, thermal and biological stability. In addition, centipede peptides generally have novel structures and high potency and specificity and therefore hold great promise both as diagnostic tools and in the treatment of human disease. Here, we review the centipede peptide toxins with reported effects on ion channels, including Nav, Kv, Cav and the nonselective cation channel polymodal transient receptor potential vanilloid 1 (TRPV1).
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Affiliation(s)
- YanYan Chu
- School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China;
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
- Innovation Center for Marine Drug Screening & Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
- Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China
- Correspondence: (Y.C.); (R.Y.)
| | - PeiJu Qiu
- School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China;
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
- Innovation Center for Marine Drug Screening & Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
- Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China
| | - RiLei Yu
- School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China;
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
- Innovation Center for Marine Drug Screening & Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
- Correspondence: (Y.C.); (R.Y.)
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Du C, Li J, Shao Z, Mwangi J, Xu R, Tian H, Mo G, Lai R, Yang S. Centipede KCNQ Inhibitor SsTx Also Targets K V1.3. Toxins (Basel) 2019; 11:toxins11020076. [PMID: 30717088 PMCID: PMC6409716 DOI: 10.3390/toxins11020076] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/25/2019] [Accepted: 01/27/2019] [Indexed: 12/19/2022] Open
Abstract
It was recently discovered that Ssm Spooky Toxin (SsTx) with 53 residues serves as a key killer factor in red-headed centipede’s venom arsenal, due to its potent blockage of the widely expressed KCNQ channels to simultaneously and efficiently disrupt cardiovascular, respiratory, muscular, and nervous systems, suggesting that SsTx is a basic compound for centipedes’ defense and predation. Here, we show that SsTx also inhibits KV1.3 channel, which would amplify the broad-spectrum disruptive effect of blocking KV7 channels. Interestingly, residue R12 in SsTx extends into the selectivity filter to block KV7.4, however, residue K11 in SsTx replaces this ploy when toxin binds on KV1.3. Both SsTx and its mutant SsTx_R12A inhibit cytokines production in T cells without affecting the level of KV1.3 expression. The results further suggest that SsTx is a key molecule for defense and predation in the centipedes’ venoms and it evolves efficient strategy to disturb multiple physiological targets.
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Affiliation(s)
- Canwei Du
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Jiameng Li
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Zicheng Shao
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - James Mwangi
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Yunnan Province, Kunming Institute of Zoology, Kunming 650223, Yunnan, China.
- University of Chinese Academy of Sciences, Beijing 100009, China.
| | - Runjia Xu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Huiwen Tian
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Guoxiang Mo
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Ren Lai
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Yunnan Province, Kunming Institute of Zoology, Kunming 650223, Yunnan, China.
- Sino-African Joint Research Center, Chinese Academy of Science, Wuhan 430074, Hubei, China.
| | - Shilong Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Yunnan Province, Kunming Institute of Zoology, Kunming 650223, Yunnan, China.
- Sino-African Joint Research Center, Chinese Academy of Science, Wuhan 430074, Hubei, China.
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12
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Arthropod venoms: Biochemistry, ecology and evolution. Toxicon 2018; 158:84-103. [PMID: 30529476 DOI: 10.1016/j.toxicon.2018.11.433] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 11/20/2018] [Accepted: 11/26/2018] [Indexed: 12/17/2022]
Abstract
Comprising of over a million described species of highly diverse invertebrates, Arthropoda is amongst the most successful animal lineages to have colonized aerial, terrestrial, and aquatic domains. Venom, one of the many fascinating traits to have evolved in various members of this phylum, has underpinned their adaptation to diverse habitats. Over millions of years of evolution, arthropods have evolved ingenious ways of delivering venom in their targets for self-defence and predation. The morphological diversity of venom delivery apparatus in arthropods is astounding, and includes extensively modified pedipalps, tail (telson), mouth parts (hypostome), fangs, appendages (maxillulae), proboscis, ovipositor (stinger), and hair (urticating bristles). Recent investigations have also unravelled an astonishing venom biocomplexity with molecular scaffolds being recruited from a multitude of protein families. Venoms are a remarkable bioresource for discovering lead compounds in targeted therapeutics. Several components with prospective applications in the development of advanced lifesaving drugs and environment friendly bio-insecticides have been discovered from arthropod venoms. Despite these fascinating features, the composition, bioactivity, and molecular evolution of venom in several arthropod lineages remains largely understudied. This review highlights the prevalence of venom, its mode of toxic action, and the evolutionary dynamics of venom in Arthropoda, the most speciose phylum in the animal kingdom.
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Ombati R, Luo L, Yang S, Lai R. Centipede envenomation: Clinical importance and the underlying molecular mechanisms. Toxicon 2018; 154:60-68. [DOI: 10.1016/j.toxicon.2018.09.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 08/21/2018] [Accepted: 09/25/2018] [Indexed: 12/11/2022]
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14
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Washio K, Masaki T, Fujii S, Hatakeyama M, Oda Y, Fukunaga A, Natsuaki M. Anaphylaxis caused by a centipede bite: A "true" type-I allergic reaction. Allergol Int 2018. [PMID: 29519763 DOI: 10.1016/j.alit.2018.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Ken Washio
- Department of Dermatology, Kobe-City Nishi Kobe Medical Center, Hyogo, Japan; Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Hyogo, Japan.
| | - Taro Masaki
- Department of Dermatology, Kobe-City Nishi Kobe Medical Center, Hyogo, Japan; Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Shotaro Fujii
- Department of Dermatology, Kobe-City Nishi Kobe Medical Center, Hyogo, Japan
| | - Mayumi Hatakeyama
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Yoshiko Oda
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Atsushi Fukunaga
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Masaru Natsuaki
- Department of Dermatology, Hyogo College of Medicine, Hyogo, Japan
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Insects, arachnids and centipedes venom: A powerful weapon against bacteria. A literature review. Toxicon 2017; 130:91-103. [PMID: 28242227 DOI: 10.1016/j.toxicon.2017.02.020] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/17/2017] [Accepted: 02/20/2017] [Indexed: 01/02/2023]
Abstract
Currently, new antimicrobial molecules extracted or obtained by natural sources, could be a valide alternative to traditional antibiotics. Most of these molecules are represented by antimicrobial peptides (AMPs), which are essential compounds of insect, arachnids and centipedes venom. AMPs, due to their strong effectiveness, low resistance rates and peculiar mode of action, seem to have all the suitable features to be a powerful weapon against several bacteria, especially considering the increasing antibiotic-resistance phenomena. The present literature review focuses on the antibacterial activity of bee, wasp, ant, scorpion, spider and scolopendra crude venom and of their main biological active compounds. After a brief overview of each animal and venom use in folkloristic medicine, this review reports, in a comprehensive table, the results obtained by the most relevant and recent researches carried out on the antibacterial activity of different venom and their AMPs. For each considered study, the table summarizes data concerning minimal inhibitory concentration values, minimal bactericidal concentration values, the methods employed, scientific name and common names and provenience of animal species from which the crude venom and its respective compounds were obtained.
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Mavridis IN, Meliou M, Pyrgelis ES. Clinical consequences of centipede bite: Is it neurotoxic? World J Neurol 2016; 6:23-29. [DOI: 10.5316/wjn.v6.i2.23] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 04/28/2016] [Accepted: 06/02/2016] [Indexed: 02/06/2023] Open
Abstract
The primary purpose of this article was to review the current literature regarding the clinical consequences of centipede envenomation in humans, in order to determine whether the bite of these arthropods is neurotoxic to humans or not. A thorough search of the literature regarding the clinical consequences of centipede bites in humans was applied, with great respect to neurological symptoms potentially caused by such bites. Centipede bite commonly causes only local reactions, which usually resolve within a few days without sequelae. The patients in the majority of centipede envenomations describe a painful but benign syndrome. However, mild constitutional symptoms are relatively frequent. Remarkably, centipedes can rarely cause severe systematic reactions such as anaphylaxis or even hypotension and myocardial ischemia. Factors such as patient age, comorbidity, anatomic site of envenomation, and size/species of centipede should be considered when evaluating a centipede envenomation victim. According to the current literature, the centipede bite does not seem to be neurotoxic to humans. However, it commonly causes symptoms mediated by the nervous system. These include local and generalized symptoms, with the first dominated by sensory disturbances and the second by non-specific symptoms such as headache, anxiety and presyncope. Based on our results, the answer to our study’s question is negative. The centipede bite is not neurotoxic to humans. However, it commonly causes symptoms mediated by the nervous system, which include primarily local pain and sensory disturbances, as well as generalized non-specific symptoms such as headache, anxiety and vagotonia.
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Hakim MA, Yang S, Lai R. Centipede venoms and their components: resources for potential therapeutic applications. Toxins (Basel) 2015; 7:4832-51. [PMID: 26593947 PMCID: PMC4663536 DOI: 10.3390/toxins7114832] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 11/10/2015] [Accepted: 11/11/2015] [Indexed: 12/23/2022] Open
Abstract
Venomous animals have evolved with sophisticated bio-chemical strategies to arrest prey and defend themselves from natural predators. In recent years, peptide toxins from venomous animals have drawn considerable attention from researchers due to their surprising chemical, biochemical, and pharmacological diversity. Similar to other venomous animals, centipedes are one of the crucial venomous arthropods that have been used in traditional medicine for hundreds of years in China. Despite signifying pharmacological importance, very little is known about the active components of centipede venoms. More than 500 peptide sequences have been reported in centipede venomous glands by transcriptome analysis, but only a small number of peptide toxins from centipede has been functionally described. Like other venomous animals such as snakes, scorpions, and spiders, the venom of centipedes could be an excellent source of peptides for developing drugs for treatments as well as bio-insecticides for agrochemical applications. Although centipede venoms are yet to be adequately studied, the venom of centipedes as well as their components described to date, should be compiled to help further research. Therefore, based on previous reports, this review focusses on findings and possible therapeutic applications of centipede venoms as well as their components.
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Affiliation(s)
- Md Abdul Hakim
- Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, Chinese Academy of sciences, Kunming 650223, Yunnan, China.
- University of Chinese Academy of Sciences, Beijing100009, China.
| | - Shilong Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, Chinese Academy of sciences, Kunming 650223, Yunnan, China.
- University of Chinese Academy of Sciences, Beijing100009, China.
| | - Ren Lai
- Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, Chinese Academy of sciences, Kunming 650223, Yunnan, China.
- Joint Laboratory of Natural Peptide, University of Science and Technology of China and Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China.
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18
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Zhang Y. Why do we study animal toxins? DONG WU XUE YAN JIU = ZOOLOGICAL RESEARCH 2015; 36:183-222. [PMID: 26228472 PMCID: PMC4790257 DOI: 10.13918/j.issn.2095-8137.2015.4.183] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 04/25/2015] [Indexed: 12/31/2022]
Abstract
Venom (toxins) is an important trait evolved along the evolutionary tree of animals. Our knowledges on venoms, such as their origins and loss, the biological relevance and the coevolutionary patterns with other organisms are greatly helpful in understanding many fundamental biological questions, i.e., the environmental adaptation and survival competition, the evolution shaped development and balance of venoms, and the sophisticated correlations among venom, immunity, body power, intelligence, their genetic basis, inherent association, as well as the cost-benefit and trade-offs of biological economy. Lethal animal envenomation can be found worldwide. However, from foe to friend, toxin studies have led lots of important discoveries and exciting avenues in deciphering and fighting human diseases, including the works awarded the Nobel Prize and lots of key clinic therapeutics. According to our survey, so far, only less than 0.1% of the toxins of the venomous animals in China have been explored. We emphasize on the similarities shared by venom and immune systems, as well as the studies of toxin knowledge-based physiological toxin-like proteins/peptides (TLPs). We propose the natural pairing hypothesis. Evolution links toxins with humans. Our mission is to find out the right natural pairings and interactions of our body elements with toxins, and with endogenous toxin-like molecules. Although, in nature, toxins may endanger human lives, but from a philosophical point of view, knowing them well is an effective way to better understand ourselves. So, this is why we study toxins.
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Affiliation(s)
- Yun Zhang
- Key Laboratory of Animal Models and Human Disease Mechanisms of The Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming Yunnan 650223,
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Undheim EAB, Fry BG, King GF. Centipede venom: recent discoveries and current state of knowledge. Toxins (Basel) 2015; 7:679-704. [PMID: 25723324 PMCID: PMC4379518 DOI: 10.3390/toxins7030679] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 02/13/2015] [Accepted: 02/15/2015] [Indexed: 12/27/2022] Open
Abstract
Centipedes are among the oldest extant venomous predators on the planet. Armed with a pair of modified, venom-bearing limbs, they are an important group of predatory arthropods and are infamous for their ability to deliver painful stings. Despite this, very little is known about centipede venom and its composition. Advances in analytical tools, however, have recently provided the first detailed insights into the composition and evolution of centipede venoms. This has revealed that centipede venom proteins are highly diverse, with 61 phylogenetically distinct venom protein and peptide families. A number of these have been convergently recruited into the venoms of other animals, providing valuable information on potential underlying causes of the occasionally serious complications arising from human centipede envenomations. However, the majority of venom protein and peptide families bear no resemblance to any characterised protein or peptide family, highlighting the novelty of centipede venoms. This review highlights recent discoveries and summarises the current state of knowledge on the fascinating venom system of centipedes.
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Affiliation(s)
- Eivind A B Undheim
- Institute for Molecular Bioscience, the University of Queensland, St Lucia, Queensland 4072, Australia.
| | - Bryan G Fry
- School of Biological Sciences, the University of Queensland, St Lucia, Queensland 4072, Australia.
| | - Glenn F King
- Institute for Molecular Bioscience, the University of Queensland, St Lucia, Queensland 4072, Australia.
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Pengas IP, Assiotis A, Kokkinakis M, Khan WS, Meyers P, Arbuthnot J, Mcnicholas MJ. Knee Osteochondritis Dissecans Treated by the AO Hook Fixation System: A Four Year Follow-Up of an Alternative Technique. Open Orthop J 2014; 8:209-14. [PMID: 25067976 PMCID: PMC4110397 DOI: 10.2174/1874325001408010209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 03/09/2014] [Accepted: 03/11/2014] [Indexed: 11/22/2022] Open
Abstract
Surgical fixation is recommended for stable osteochondritis dissecans (OCD) lesions that have failed nonoperative management and for all unstable lesions. In this study we set out to describe and evaluate an alternative method of surgical fixation for such lesions. Five knees with unstable OCD lesions in four male adolescent patients with open physes were treated with the AO Hook Fixation System. The outcome was evaluated both clinically and with three separate outcome systems (IKDC 2000, KOOS, Lysholm) at one and a mean four year follow-up. We demonstrated excellent clinical results in all patients. At four years, all scoring systems demonstrated statistically significant improvement when compared to the preoperative status. Our study suggests that the AO Hook Fixation System is an alternative method of surgical intervention with comparable medium term results with other existing modes of fixation and the added biomechanical advantage of the absence of distracting forces during hardware removal.
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Affiliation(s)
- Ioannis P Pengas
- Joint Reconstruction Unit, Royal National Orthopaedic Hospital, Stanmore, Middlesex, HA7 4LP, UK ; Department of Orthopaedics and Trauma Surgery, Warrington Hospital, Lovely Lane, Cheshire, WA5 1QG, UK
| | - Angelos Assiotis
- Department of Orthopaedics and Trauma Surgery, Central Middlesex Hospital, Acton Lane, London, NW10 7NS, UK
| | - Michail Kokkinakis
- Department of Orthopaedics and Trauma Surgery, Evelina Childrens Hospital, Guy's & St Thomas Hospital NHS Trust, Westminster Bridge Road, London, SE1 7EH, UK
| | - Wasim S Khan
- Joint Reconstruction Unit, Royal National Orthopaedic Hospital, Stanmore, Middlesex, HA7 4LP, UK
| | - Paul Meyers
- Department of Orthopaedics and Trauma Surgery, Warrington Hospital, Lovely Lane, Cheshire, WA5 1QG, UK
| | - James Arbuthnot
- Department of Orthopaedics and Trauma Surgery, Heart of England NHS Foundation Trust, Bordesley Green East, Birmingham, B9 5SS, UK
| | - Michael J Mcnicholas
- Department of Orthopaedics and Trauma Surgery, Aintree University Hospital, Liverpool, Merseyside L9 7AL, UK
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Raval P, Khan W, Haddad B, Mahapatra AN. Bite injuries to the hand - review of the literature. Open Orthop J 2014; 8:204-8. [PMID: 25097675 PMCID: PMC4112338 DOI: 10.2174/1874325001408010204] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 04/05/2014] [Accepted: 04/10/2014] [Indexed: 11/22/2022] Open
Abstract
Patients presenting to the emergency department with bite injuries to the hand sustain them through a number of causes including domesticated as well as stray animal bites, and human bites commonly sustained as a result of violence. The nature of the injuries sustained can be very deceptive. A small tooth mark on the exterior can be a fulminant infection in the tissues deeper down. Tendon injuries, fractures of the metacarpals and phalanges and management of the wound are critical issues faced by a surgeon in dealing with such patients. Similarly the less common bite injuries to the hand, often with disastrous and sometimes fatal complications, do also present to the emergency department. A high incidence of suspicion is needed in dealing with these injuries effectively. In our article we discuss the common as well as uncommon causes of bite injuries to the hand and their management. In addition to reviewing the literature to ascertain the management of such injuries, we also discuss interesting and rare case reports.
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Affiliation(s)
- Pradyumna Raval
- Department of Orthopaedic Surgery, Our Lady of Lourdes Hospital, Drogheda, Ireland
| | - Wasim Khan
- University College London Institute of Orthopaedics & Musculoskeletal Sciences, Royal National Orthopaedic Hospital, Stanmore, UK
| | - Behrooz Haddad
- University College London Institute of Orthopaedics & Musculoskeletal Sciences, Royal National Orthopaedic Hospital, Stanmore, UK
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