27 results match your criteria Lizard Envenomation

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Terrestrial envenomations in pediatric patients: identification and management in the emergency department.

Pediatr Emerg Med Pract 2021 Sep 2;18(9):1-24. Epub 2021 Sep 2.

Department of Emergency Medicine, University of California, Los Angeles, Los Angeles, CA.

The majority of bites and stings from terrestrial animals are not dangerous. However, due to their smaller size, children may be more susceptible to the effects of venom, and they may experience more-severe envenomation effects than adults. This issue reviews the basic epidemiology and underlying pathophysiology of the bites and stings of spiders, bees and wasps, fire ants, scorpions, snakes, and lizards. Read More

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September 2021

The Curious Case of the "Neurotoxic Skink": Scientific Literature Points to the Absence of Venom in Scincidae.

Toxins (Basel) 2021 02 3;13(2). Epub 2021 Feb 3.

Department of Emergency Medicine, Jubilee Mission Medical College and Research Institute, Thrissur 680005, Kerala, India.

In contrast to the clearly documented evolution of venom in many animal lineages, the origin of reptilian venom is highly debated. Historically, venom has been theorised to have evolved independently in snakes and lizards. However, some of the recent works have argued for the common origin of venom in "Toxicofera" reptiles, which include the order Serpentes (all snakes), and Anguimorpha and Iguania lizards. Read More

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February 2021

Severe spp. envenomation: a review of the literature.

Clin Toxicol (Phila) 2021 Mar 2;59(3):179-184. Epub 2020 Dec 2.

Snakebite institute of Latin America, Belize, USA.

bites are rare and generally mild, but a few cases can be life threatening. Methods: Description of bite was searched in medical literature. We present a synthesis of clinical and biomedical effects of envenomation by sp. Read More

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Ecoimmune reallocation in a native lizard in response to the presence of invasive, venomous fire ants in their shared environment.

J Exp Zool A Ecol Integr Physiol 2020 12 10;333(10):792-804. Epub 2020 Oct 10.

Department of Biology, The Pennsylvania State University, Mueller Laboratory, University Park, Pennsylvania, USA.

Exposure to stressors over prolonged periods can have fitness-relevant consequences, including suppression of immune function. We tested for effects of presence of an invasive species threat on a broad panel of immune functions of a coexisting lizard. Eastern fence lizards (Sceloporus undulatus) have been exposed to invasive fire ants (Solenopsis invicta) for over 80 years. Read More

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December 2020

Report of a severe envenomation.

Clin Toxicol (Phila) 2021 Apr 7;59(4):343-346. Epub 2020 Aug 7.

CRT, Institut Pasteur, Paris, France.

Background: Heloderma bites are rare and generally mild, but a few cases can be life threatening.

Case Report: We report a case of envenomation in a healthy 39-year-old herpetologist. The patient rapidly developed tongue and lip swelling associated with stridor. Read More

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Venom characterization of the bark scorpion Centruroides edwardsii (Gervais 1843): Composition, biochemical activities and in vivo toxicity for potential prey.

Toxicon 2019 Dec 1;171:7-19. Epub 2019 Oct 1.

Instituto Clodomiro Picado, Facultad de Microbiología, San José, Costa Rica; Escuela de Biología, Universidad de Costa Rica, San José, Costa Rica.

In this study, we characterize the venom of Centruroides edwardsii, one of the most abundant scorpions in urban and rural areas of Costa Rica, in terms of its biochemical constituents and their biological activities. C. edwardsii venom is rich in peptides but also contains some higher molecular weight protein components. Read More

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December 2019

Mortality, hospital admission, and healthcare cost due to injury from venomous and non-venomous animal encounters in the USA: 5-year analysis of the National Emergency Department Sample.

Trauma Surg Acute Care Open 2018 11;3(1):e000250. Epub 2018 Dec 11.

Department of Surgery, Stanford University, Stanford, California, USA.

Background: Injuries due to encounters with animals can be serious, but are often discussed anecdotally or only for isolated types of encounters. We sought to characterize animal-related injuries presenting to US emergency departments (ED) to determine the impact of these types of injuries.

Methods: All ED encounters with diagnosis codes corresponding to animal-related injury were identified using ICD-9-CM codes from the 2010 2014 National Emergency Department Sample (NEDS). Read More

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December 2018

Injuries and envenomation by exotic pets in Hong Kong.

Hong Kong Med J 2018 02 5;24(1):48-55. Epub 2018 Jan 5.

Accident and Emergency Department, Tuen Mun Hospital, Tuen Mun, Hong Kong.

Introduction: Exotic pets are increasingly popular in Hong Kong and include fish, amphibians, reptiles, and arthropods. Some of these exotic animals are venomous and may cause injuries to and envenomation of their owners. The clinical experience of emergency physicians in the management of injuries and envenomation by these exotic animals is limited. Read More

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February 2018

Acute kidney injury following rhabdomyolysis and sepsis after non-poisonous desert monitor bite.

Indian J Anaesth 2017 Oct;61(10):837-839

Department of Anaesthesia and Intensive Care, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India.

The desert monitor, , is a species of desert monitor lizard found in North-Western India. They are believed to be non-poisonous. We report a case of Indian desert monitor bite leading to acute renal failure following rhabdomyolysis and severe sepsis. Read More

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October 2017

Lizard Bite Masquerading as Scorpion Sting Envenomation.

J Clin Diagn Res 2016 Nov 1;10(11):SD05-SD06. Epub 2016 Nov 1.

Resident, Department of Paediatrics, BLDE University , Vijayapur, Karnataka, India .

Lizard bite is very infrequent in children. Lizards tend to avoid confrontation. Bites are only inflicted when they are manipulated or when they are cornered and feel threatened. Read More

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November 2016

Bitten by a Dragon.

Wilderness Environ Med 2016 Jun 5;27(2):291-3. Epub 2016 May 5.

Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE.

Komodo dragons (Varanus komodoensis) are large lizards known to take down prey even larger than themselves. They rarely attack humans. A 38-year-old woman was bitten by a Komodo dragon on her hand while cleaning its enclosure. Read More

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Gila monster (Heloderma suspectum) envenomation: Descriptive analysis of calls to United States Poison Centers with focus on Arizona cases.

Clin Toxicol (Phila) 2015 Jan 16;53(1):60-70. Epub 2014 Dec 16.

Department of Emergency Medicine, The University of Arizona College of Medicine , Tucson, AZ , USA.

Background: The Gila monster (Heloderma suspectum) is a venomous lizard native to the deserts of southwestern United States (US) and northern Mexico. The purpose of this study was to describe human exposures to Gila monsters reported to US poison control centers (PCCs) with a focus on Arizona cases.

Methods: The American Association of Poison Control Centers' National Poison Data System (NPDS) was used to access and retrospectively review all calls to US PCCs, concerning Gila monsters between January 1, 2000 and October 31, 2011. Read More

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January 2015

Consuming viscous prey: a novel protein-secreting delivery system in neotropical snail-eating snakes.

BMC Evol Biol 2014 Mar 25;14:58. Epub 2014 Mar 25.

Museu de Zoologia da Universidade de São Paulo, Avenida Nazaré 481, São Paulo, SP CEP 04263-000, Brazil.

Background: Efficient venom delivery systems are known to occur only in varanoid lizards and advanced colubroidean snakes among squamate reptiles. Although components of these venomous systems might have been present in a common ancestor, the two lineages independently evolved strikingly different venom gland systems. In snakes, venom is produced exclusively by serous glands in the upper jaw. Read More

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Monitor lizard bite-induced acute kidney injury--a case report.

Ren Fail 2014 Apr 16;36(3):444-6. Epub 2013 Dec 16.

Department of Nephrology, Indira Gandhi Medical College , Shimla, Himachal Pradesh , India and.

Envenomations by venomous lizards are rare. Monitor lizard bite-induced acute kidney injury (AKI) is a previously unreported complication in humans. A 55-year-old female was bitten on her right leg during farming activity by a monitor lizard (Varanus bengalensis). Read More

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Injuries, envenomations and stings from exotic pets.

J R Soc Med 2012 Jul;105(7):296-9

Emergent Disease Foundation, Riverside House, River Lawn Road, Tonbridge, Kent TN9 1EP, UK.

A variety of exotic vertebrate and invertebrate species are kept as 'pets' including fishes, amphibians (for example, frogs and toads), reptiles (turtles, crocodiles, lizards and snakes), birds, mammals (for example, primates, civets, and lions), and invertebrates (for example spiders, scorpions, and centipedes), and ownership of some of these animals is rising. Data for 2009-2011 suggest that the number of homes with reptiles rose by approximately 12.5%. Read More

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Mast cell chymase reduces the toxicity of Gila monster venom, scorpion venom, and vasoactive intestinal polypeptide in mice.

J Clin Invest 2011 Oct 19;121(10):4180-91. Epub 2011 Sep 19.

Department of Pathology, Stanford University School of Medicine, Stanford, California 94305-5324, USA.

Mast cell degranulation is important in the pathogenesis of anaphylaxis and allergic disorders. Many animal venoms contain components that can induce mast cell degranulation, and this has been thought to contribute to the pathology and mortality caused by envenomation. However, we recently reported evidence that mast cells can enhance the resistance of mice to the venoms of certain snakes and that mouse mast cell-derived carboxypeptidase A3 (CPA3) can contribute to this effect. Read More

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October 2011

Invasive fire ants alter behavior and morphology of native lizards.

Tracy Langkilde

Ecology 2009 Jan;90(1):208-17

Department of Biology, Pennsylvania State University, 417 Mueller Laboratory, University Park, Pennsylvania 16802, USA.

Nonnative species introductions are becoming more common, but long-term consequences of the novel pressures imposed by invaders on native species remain poorly known. The red imported fire ant, Solenopsis invicta, is an invasive species with potential global impact. Comparison of lizards across the invasive range within the United States reveals novel antipredator strategies and altered morphologies that mitigate potentially lethal attack by these ants, within 70 years of their introduction. Read More

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January 2009

Envenomation by a wild Guatemalan Beaded Lizard Heloderma horridum charlesbogerti.

Clin Toxicol (Phila) 2008 Nov;46(9):897-9

Organización Zootropic, General Projects, Guatemala, Guatemala and Universidad de Costa Rica, Programa Regional de Postgrado en Biología, Ciudad Universitaria Rodrigo Facio, San Pedro Montes de Oca, Costa Rica.

Background: The Guatemalan Beaded Lizard (Heloderma horridum charlesbogerti) is an endemic venomous lizard that inhabits southeastern Guatemala. Published reports of bites by Beaded Lizard are scarce. This is the first case report of a bite from Heloderma horridum charlesbogerti. Read More

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November 2008

Venom of the Brown Treesnake, Boiga irregularis: ontogenetic shifts and taxa-specific toxicity.

Toxicon 2006 Apr 20;47(5):537-48. Epub 2006 Mar 20.

School of Biological Sciences, University of Northern Colorado, 501 20th Street, CB 92, Greeley, CO 80639-0017, USA.

The Brown Treesnake (Boiga irregularis), a rear-fanged member of the polyphyletic family Colubridae, is an introduced predator on Guam which has been responsible for numerous human envenomations. Because little is known about this species' venom, we characterized venom proteins from B. irregularis using enzyme assays, one and 2D electrophoresis, Western blot analysis, mass spectrometry, HPLC and toxicity assays. Read More

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Cysteine-rich secretory protein 3 is a ligand of alpha1B-glycoprotein in human plasma.

Biochemistry 2004 Oct;43(40):12877-86

Granulocyte Research Laboratory, Department of Hematology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.

Human cysteine-rich secretory protein 3 (CRISP-3; also known as SGP28) belongs to a family of closely related proteins found in mammals and reptiles. Some mammalian CRISPs are known to be involved in the process of reproduction, whereas some of the CRISPs from reptiles are neurotoxin-like substances found in lizard saliva or snake venom. Human CRISP-3 is present in exocrine secretions and in secretory granules of neutrophilic granulocytes and is believed to play a role in innate immunity. Read More

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October 2004

Envenomation by the Mexican beaded lizard: a case report.

F Lee Cantrell

J Toxicol Clin Toxicol 2003 ;41(3):241-4

California Poison Control System, San Diego Division, San Diego, California, USA.

Background: Envenomations by venomous lizards are rare. A single report of envenomation by a Mexican beaded lizard (Heloderma horridum) has been published. Further, anaphylaxis secondary to lizard envenomation has only been reported with the Gila monster. Read More

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Foraging mode and evolution of strike-induced chemosensory searching in lizards.

William E Cooper

J Chem Ecol 2003 Apr;29(4):1013-26

Department of Biology, Indiana University-Purdue University at Fort Wayne, Fort Wayne, Indiana 46805-1499, USA.

Strike-induced chemosensory searching (SICS) in lizards and snakes is a means of relocating prey by scent-trailing. The two main components of SICS are an elevated tongue-flick rate for vomerolfactory sampling after biting prey (PETF) and searching movements. In combination, these behaviors permit scent-trailing. Read More

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[Bites by terrestrial vertebrates].

Rev Med Liege 2000 Jun;55(6):527-30

Service de Dermatopathologie, Université de Liège.

Bites by terrestrial vertebrates, reptiles or mammals, represent a special risk in tropical regions. Envenomation is possible by a few lizards and many snakes. For mammals, tissular destructions due to the bite can be severe. Read More

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Report on envenomation by a Gila monster (Heloderma suspectum) with a discussion of venom apparatus, clinical findings, and treatment.

Wilderness Environ Med 1997 May;8(2):111-6

Reptile Research and Breeding Facility, Cincinnati, OH 45238, USA.

Human envenomations by Heloderma species are a rare but clinically important medical problem. We report a case of an adult male bitten on the left hand by a 50-cm male, captive specimen of Heloderma suspectum (Gila monster). Immediate signs and symptoms included pain at the bite site radiating into the arm and axilla and swelling of the hand and forearm. Read More

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Prolonged poststrike elevation in tongue-flicking rate with rapid onset in gila monster,Heloderma suspectum: Relation to diet and foraging and implications for evolution of chemosensory searching.

J Chem Ecol 1994 Nov;20(11):2867-81

Department of Biology, Indiana University-Purdue University Fort Wayne, 46805, Fort Wayne, Indiana.

Experimental tests showed that poststrike elevation in tongue-flicking rate (PETF) and strike-induced chemosensory searching (SICS) in the gila monster last longer than reported for any other lizard. Based on analysis of numbers of tongue-flicks emitted in 5-min intervals, significant PETF was detected in all intervals up to and including minutes 41-45. Using 10-min intervals, PETF lasted though minutes 46-55. Read More

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November 1994

Gila monster envenomation.

Ann Emerg Med 1994 Oct;24(4):731-5

Division of Emergency Medicine, University of Utah School of Medicine, Salt Lake City.

Envenomation from the bite of the Gila monster (Heloderma suspectum) has been reported in the medical literature only nine times since 1956. We present an additional four cases to better define the signs and symptoms of envenomation. Frequent clinical manifestations are pain, hypotension, tachycardia, nausea, and vomiting. Read More

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October 1994
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