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Snakebite

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https://www.readbyqxmd.com/read/28719273/bungarus-multicinctus-multicinctus-snakebite-in-taiwan
#1
Yan-Chiao Mao, Po-Yu Liu, Liao-Chun Chiang, Shu-Chen Liao, Hung-Yuan Su, Szu-Yin Hsieh, Chen-Chang Yang
AbstractAlthough specific antivenom is available in Taiwan, respiratory failure and general pain frequently accompany Bungarus multicinctus envenomation and there have been few reports on the management of B. multicinctus envenomation. We retrospectively analyzed 44 cases of B. multicinctus bite admitted to Taichung Veterans General Hospital (VGH) or to Taipei VGH. Demographic data, treatment, and outcome of patients with and without respiratory failure were compared. In this study, 20.5% patients had bites without noticeable signs or symptoms of significant envenoming, 27...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28708892/cross-recognition-of-a-pit-viper-crotalinae-polyspecific-antivenom-explored-through-high-density-peptide-microarray-epitope-mapping
#2
Mikael Engmark, Bruno Lomonte, José María Gutiérrez, Andreas H Laustsen, Federico De Masi, Mikael R Andersen, Ole Lund
Snakebite antivenom is a 120 years old invention based on polyclonal mixtures of antibodies purified from the blood of hyper-immunized animals. Knowledge on antibody recognition sites (epitopes) on snake venom proteins is limited, but may be used to provide molecular level explanations for antivenom cross-reactivity. In turn, this may help guide antivenom development by elucidating immunological biases in existing antivenoms. In this study, we have identified and characterized linear elements of B-cell epitopes from 870 pit viper venom protein sequences by employing a high-throughput methodology based on custom designed high-density peptide microarrays...
July 14, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28703020/epidemiology-and-clinical-outcomes-of-snakebite-in-the-elderly-a-toxic-database-study
#3
Meghan B Spyres, Anne-Michelle Ruha, Kurt Kleinschmidt, Rais Vohra, Eric Smith, Angela Padilla-Jones
INTRODUCTION: Epidemiologic studies of snakebites in the United States report typical victims to be young men. Little is known regarding other demographics including children and the elderly. The objective of this study was to describe the epidemiology and clinical manifestations of snake bite in elderly patients reported to the ToxIC (Toxicology Investigators Consortium) North American Snakebite Registry (NASBR) Methods: This was a multicenter analysis of a prospectively collected cohort of patients with snakebite reported to the ToxIC NASBR between 1 January 2013 and 31 December 2015...
July 13, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28698056/daboia-vipera-palaestinae-envenomation-in-horses-clinical-and-hematological-signs-risk-factors-for-mortality-and-construction-of-a-novel-severity-scoring-system
#4
Sharon Tirosh-Levy, Reut Solomovich, Judith Comte, Gila A Sutton, Amir Steinman
Daboia palaestinae is the most common venomous snake in Israel and an important cause of envenomations in humans and animals. Although specific antivenom is produced from horses, little documentation exists regarding the characteristics of envenomed horses. This survey was constructed to describe the clinical, hematological and biochemical characteristics of D. palaestinae envenomation in horses, to identify risk factors for fatality and to construct a prognostic snakebite severity scale (SSS) to be used by veterinarians in the field...
July 8, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28692641/poor-efficacy-of-preemptive-amoxicillin-clavulanate-for-preventing-secondary-infection-from-bothrops-snakebites-in-the-brazilian-amazon-a-randomized-controlled-clinical-trial
#5
Jacqueline A G Sachett, Iran Mendonça da Silva, Eliane Campos Alves, Sâmella S Oliveira, Vanderson S Sampaio, Fábio Francesconi do Vale, Gustavo Adolfo Sierra Romero, Marcelo Cordeiro Dos Santos, Hedylamar Oliveira Marques, Mônica Colombini, Ana Maria Moura da Silva, Fan Hui Wen, Marcus V G Lacerda, Wuelton M Monteiro, Luiz C L Ferreira
BACKGROUND: Secondary bacterial infections from snakebites contribute to the high complication rates that can lead to permanent function loss and disabilities. Although common in endemic areas, routine empirical prophylactic use of antibiotics aiming to prevent secondary infection lacks a clearly defined policy. The aim of this work was to estimate the efficacy of amoxicillin clavulanate for reducing the secondary infection incidence in patients bitten by Bothrops snakes, and, secondarily, identify risk factors for secondary infections from snakebites in the Western Brazilian Amazon...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28683119/the-socio-economic-burden-of-snakebite-in-sri-lanka
#6
Anuradhani Kasturiratne, Arunasalam Pathmeswaran, A Rajitha Wickremasinghe, Shaluka F Jayamanne, Andrew Dawson, Geoff K Isbister, Hithanadura Janaka de Silva, David G Lalloo
BACKGROUND: Snakebite is a major problem affecting the rural poor in many of the poorest countries in the tropics. However, the scale of the socio-economic burden has rarely been studied. We undertook a comprehensive assessment of the burden in Sri Lanka. METHODS: Data from a representative nation-wide community based household survey were used to estimate the number of bites and deaths nationally, and household and out of pocket costs were derived from household questionnaires...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28673600/on-the-chemotherapeutic-agents-localization-in-tissue-by-means-of-snake-venoms
#7
Oleksii S Rukhlenko, Georgy Th Guria, Andrey I Vorobiev
The efficiency of anti-tumour drug strongly depends on its dose. Higher drug doses and exposure times usually result in better treatment. It is why the implementation of high-dose treatment is always attractive. However, most of the drug delivery techniques meet essential limitations. In isolated regional perfusion a tumour can be exposed to high-dose therapeutic influence but the target organ may be isolated from the rest of circulatory system only for a relatively short period of time. During systemic injection of anti-tumour agents dose limitations are dictated by side toxicity danger...
July 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28670326/isolation-and-biochemical-characterization-of-bradykinin-potentiating-peptides-from-bitis-gabonica-rhinoceros
#8
Tamara M Fucase, Juliana M Sciani, Ingrid Cavalcante, Vincent L Viala, Bruno B Chagas, Daniel C Pimenta, Patrick J Spencer
BACKGROUND: Venoms represent a still underexplored reservoir of bioactive components that might mitigate or cure diseases in conditions in which conventional therapy is ineffective. The bradykinin-potentiating peptides (BPPs) comprise a class of angiotensin-I converting enzyme (ACE) inhibitors. The BPPs usually consist of oligopeptides with 5 to 13 residues with a high number of proline residues and the tripeptide Ile-Pro-Pro (IPP-tripeptide) in the C-terminus region and have a conserved N-terminal pyroglutamate residue...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28664135/ethnomedicinal-plants-used-for-snakebite-in-india-a-brief-overview
#9
REVIEW
Sughosh V Upasani, Vishal G Beldar, Anil U Tatiya, M S Upasani, Sanjay J Surana, Divyata S Patil
The result of human interface and assortment of the most desirable, influential, and successful plant species found in the immediate environment at a precise circumstance is attributable to indigenous knowledge of plant species. India has a rich variety of medicinal plants growing under different geographical and ecological conditions; 1500 out of 15,000 privileged plant species have been reported to have medicinal uses. Snakebite is a severe medical, social, and economic problem in many parts of the world, chiefly in tropical and subtropical nations where majority of the world's dangerous snakes are found and where access to treatment is limited...
June 2017: Integrative medicine research
https://www.readbyqxmd.com/read/28657429/safety-profile-of-snake-antivenom-use-in-hong-kong-a-review-of-191-cases-from-2008-to-2015
#10
Rupeng Mong, Vember C H Ng, Man Li Tse
INTRODUCTION: The mainstay of treatment for significant envenoming from snakebites is antivenom. However, there is insufficient data regarding the safety of antivenom used in Hong Kong. We describe the incidence of hypersensitivity reactions from antivenom use and review the frequency and reasons for intensive care unit (ICU) admission. METHODS: The Hong Kong Poisons Information Centre database was reviewed. All patients given snake antivenom between 2008 and 2015 were included...
June 28, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28655721/sixty-seconds-on-%C3%A2-snakebite
#11
Anne Gulland
No abstract text is available yet for this article.
June 27, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28636631/incidence-and-mortality-due-to-snakebite-in-the-americas
#12
Jean-Philippe Chippaux
BACKGROUND: Better knowledge of the epidemiological characteristics of snakebites could help to take measures to improve their management. The incidence and mortality of snakebites in the Americas are most often estimated from medical and scientific literature, which generally lack precision and representativeness. METHODOLOGY/PRINCIPAL FINDINGS: Authors used the notifications of snakebites treated in health centers collected by the Ministries of Health of the American countries to estimate their incidence and mortality...
June 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28627854/swiss-and-tropical-snakebites-the-clinical-management
#13
Laurence Rochat, Gabriel Alcoba
With increasing trips to tropical areas, as well as a high number of venomous snake holders in the country, the frequency of snake bites is likely to increase. Even if in 50 % of cases, the bites do not lead to clinical envenoming, rapid and effective management is essential to successful treatment, which includes supply with the polyvalent or specific antivenom and recognition of the signs and symptoms justifying its administration. We will deal here mainly with local and tropical snake envenoming that Swiss practitioners could encounter in their offices or the emergency rooms and propose scenarios according to the syndromes...
May 3, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28612300/effects-of-photobiomodulation-therapy-on-bothrops-moojeni-snake-envenomed-gastrocnemius-of-mice-using-enzymatic-biomarkers
#14
Doroty Mesquita Dourado, Rosemary Matias, Marcos Barbosa-Ferreira, Baldomero Antonio Kato da Silva, Jéssica de Araujo Isaias Muller, Willians Fernando Vieira, Maria Alice da Cruz-Höfling
Bothropic venom contains a range of biologically active substances capable of causing severe local and systemic envenoming symptomatology within its victims. The snake anti-venom is effective against systemic effects but has no neutralizing effect against the fast developing local effects. Herein, mice gastrocnemius injected with Bothrops moojeni venom (40 μg/kg) or saline solution were irradiated with HeNe (632.8 nm) and GaAs (904 nm) lasers (daily energy density of 4 J/cm(2); 0.03/0.21 power density; 0...
June 13, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28595875/development-of-igy-antibodies-against-anti-snake-toxins-endowed-with-highly-lethal-neutralizing-activity
#15
David Gitirana da Rocha, Jorge Hernandez Fernandez, Cláudia Maria Costa de Almeida, Cláudia Letícia da Silva, Fábio Carlos Magnoli, Osmair Élder da Silva, Wilmar Dias da Silva
Snakebite envenoming is a major neglected disease related to poverty in developing countries. Treatment involves the administration of a specific antivenom serum and auxiliary therapies, if necessary. The improvement of antibodies is of great importance for the technological advancement of antivenom therapy and to reduce the morbidity and mortality associated with this medical burden. In the present study, adult hens were immunized nine times with 20μg of B. arietans or C. d. terrificus venoms at three-week intervals between immunizations...
August 30, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28579478/absolute-venomics-absolute-quantification-of-intact-venom-proteins-through-elemental-mass-spectrometry
#16
Francisco Calderón-Celis, Laura Cid-Barrio, Jorge Ruiz Encinar, Alfredo Sanz-Medel, Juan J Calvete
We report the application of a hybrid element and molecular MS configuration for the parallel absolute quantification of μHPLC-separated intact sulfur-containing venom proteins, via ICP triple quadrupole MS and (32)S/(34)S isotope dilution analysis, and identification by ESI-QToF-MS of the toxins of the medically important African black-necked spitting cobra, Naja nigricollis (Tanzania); New Guinea small-eyed snake, Micropechis ikaheka; and Papuan black snake, Pseudechis papuanus. The main advantage of this approach is that only one generic sulfur-containing standard is required to quantify each and all intact Cys- and/or Met-containing toxins of the venom proteome...
July 5, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28571206/spontaneous-intracerebral-bleed-post-snake-envenomation
#17
Girish Menon, Lakshman I Kongwad, Rajesh Parameshwaran Nair, Anmol Nagaraj Gowda
Snakebite envenomation is a commonly encountered emergency in tropical countries with potentially fatal complications. Life threatening neurosurgical complications are rare and infrequently documented in literature. We discuss the case of 28-year-old gentleman, managed successfully for an intracerebral haemorrhage following a viper bite and attempt to obviate some management dilemmas often encountered in viperine envenomation.
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28528176/production-and-preclinical-assessment-of-camelid-immunoglobulins-against-echis-sochureki-venom-from-desert-of-rajasthan-india
#18
P D Tanwar, S K Ghorui, S K Kochar, Raghvendar Singh, N V Patil
Snakebite is a significant cause of death and disability in subsistent farming populations of rural India. Antivenom is the most effective treatment of envenoming and is manufactured from IgG of venom-immunised horses. Because of complex fiscal reasons, the production, testing and delivery of antivenoms designed to treat envenoming by the most medically-important snakes in the region has been questioned time to time. In this study, we report successful immunisation of dromedaries (Camelus dromedarius) against the venom of Indian saw-scaled Viper- Echis carinatus sochureki...
May 17, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28516375/effects-of-bothrops-alternatus-venom-in-zebrafish-a-histopathological-study
#19
José Carlos Tavares Carvalho, Hady Keita, Giovanna Rocha Santana, Gisele Custódio de Souza, Igor Victor Ferreira Dos Santos, Jesus Rafael Rodriguez Amado, Ansoumane Kourouma, Ariadna Lafourcade Prada, Helison de Oliveira Carvalho, Maria Lúcia Silva
Zebrafish is an excellent model organism for studying tissue alterations caused by Bothrops alternatus venom (BAV) and for screening new anti-venom drugs. To study tissue alterations following exposure to BAV and the roles that glucocorticoids play in these tissue reactions, zebrafish were randomly divided into five groups: the free injection control group (FIC), the phosphate-buffered saline injection control group (PIC), the venom injected group (VI), the group treated with dexamethasone 1 h before venom injection (D1hBVI) and the group treated with dexamethasone 1 h after venom injection (D1hAVI)...
May 17, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28510574/dose-of-antivenom-for-the-treatment-of-snakebite-with-neurotoxic-envenoming-evidence-from-a-randomised-controlled-trial-in-nepal
#20
RANDOMIZED CONTROLLED TRIAL
Emilie Alirol, Sanjib Kumar Sharma, Anup Ghimire, Antoine Poncet, Christophe Combescure, Chabilal Thapa, Vijaya Prasad Paudel, Kalidas Adhikary, Walter Robert Taylor, David Warrell, Ulrich Kuch, François Chappuis
BACKGROUND: Currently, there is inadequate evidence on which to base clinical management of neurotoxic snakebite envenoming, especially in the choice of initial antivenom dosage. This randomised controlled trial compared the effectiveness and safety of high versus low initial antivenom dosage in victims of neurotoxic envenoming. METHODOLOGY/ PRINCIPAL FINDINGS: This was a balanced, randomised, double-blind trial that was conducted in three health care centers located in the Terai plains of Nepal...
May 2017: PLoS Neglected Tropical Diseases
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