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https://www.readbyqxmd.com/read/29055136/the-rhinoceros-among-serpents-comparative-anatomy-and-experimental-biophysics-of-calabar-burrowing-python-calabaria-reinhardtii-skin
#1
Dawei Han, Bruce A Young
The Calabar burrowing python (Calabaria reinhardtii) has a unique combination of marked thickness of the integumentary layers, a highly organized lamellate arrangement of the dermal collagen bundles, and a reduction in the size of the interscale hinge region of the integument. Biomechanical testing demonstrates that the skin of C. reinhardtii is more resistant to penetration than the skin of other snakes. The laminar arrangement of the collagen bundles provides for penetrative resistance, even while maintaining the flexibility characteristic of snake skin...
October 21, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29024773/an-improved-technique-for-the-assessment-of-venom-induced-haemorrhage-in-a-murine-model
#2
Timothy P Jenkins, Andrés Sánchez, Álvaro Segura, Mariángela Vargas, María Herrera, Trenton K Stewart, Guillermo León, José María Gutiérrez
Haemorrhage is a common clinical manifestation in envenomings caused by bites from snakes of the family Viperidae. Therefore, knowing the haemorrhagic potential of venoms and the capacity of antivenoms to neutralise this effect are of paramount relevance in toxinology. The most widely used method for quantifying haemorrhage involves the intradermal injection of venom (or a mixture of venom/antivenom) in mice, and the assessment of the resulting haemorrhagic area in the inner side of the skin. Although this method allows a straightforward assessment of the haemorrhagic activity of a venom, it does not account for haemorrhagic lesions having a similar area but differing in the depth and intensity of haemorrhage...
October 9, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28988729/allergic-reactions-to-antivenom-in-a-patient-bitten-twice-by-the-same-snake-within-a-month-a-rare-case-report-and-literature-review
#3
Fan-Jie Zeng, Cong Chen, Ming-Hua Liu
Antivenom is the most effective method currently available for the treatment of poisonous snake bite. Allergic reactions to antivenom have been reported in the past. Here we shared a case of allergic reactions to antivenom in an old male patient who was bitten twice by the same snake (probably same one) at the same biting site within a month whereas the patient did not show any allergic disorder in the first bitten. Envenomations twice in a short period time by the same kind of snake are very rare. Physician should be alert to the occurrence of allergic reactions in treating this type of patients with antivenom...
July 13, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28975491/the-epidemiology-clinical-course-and-management-of-snakebites-in-the-north-american-snakebite-registry
#4
Anne-Michelle Ruha, Kurt C Kleinschmidt, Spencer Greene, Meghan B Spyres, Jeffrey Brent, Paul Wax, Angela Padilla-Jones, Sharan Campleman
The American College of Medical Toxicology established the North American Snakebite Registry (NASBR), a national database of detailed, prospectively collected information regarding snake envenomation in the United States, in 2013. This report describes the epidemiology, clinical course, and management of snakebites in the NASBR. All cases entered into the NASBR between January 1, 2013 and December 31, 2015 were identified. Descriptive statistics are used to report results. Fourteen sites in 10 states entered 450 snakebites...
October 3, 2017: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/28959667/a-hospital-based-epidemiological-study-of-snakebite-in-paschim-medinipur-district-west-bengal-india
#5
Sumana Sarkhel, Rituparna Ghosh, Koushik Mana, Kripasindhu Gantait
OBJECTIVE: Snakebite is a serious medical problem in Paschim Medinipur district, West Bengal, India. In the present study, hospital based data on snakebite cases and deaths were collected from 10 blocks of the district to obtain a picture of this neglected public health issue. METHODS: Retrospective data of snakebite and deaths from 2012 to 2016 was collected from the 5 Rural hospitals (RH) and 5 Block level Primary Health Centres(BPHC) of the ten blocks of Paschim Medinipur district in a prescribed format addressing issues including the demographic factors regarding the victims, seasonal pattern, history of snakebite in previous 5 years, outcome of the bite, any reporting of death...
2017: Toxicology Reports
https://www.readbyqxmd.com/read/28942553/clinacanthus-nutans-mitigates-neuronal-apoptosis-and-ischemic-brain-damage-through-augmenting-the-c-ebp%C3%AE-driven-ppar-%C3%AE-transcription
#6
Jui-Sheng Wu, Mei-Han Kao, Hsin-Da Tsai, Wai-Mui Cheung, Jin-Jer Chen, Wei-Yi Ong, Grace Y Sun, Teng-Nan Lin
Clinacanthus nutans Lindau (C. nutans) is a traditional herbal medicine widely used in Asian countries for treating a number of remedies including snake and insect bites, skin rashes, viral infections, and cancer. However, the underlying molecular mechanisms for its action and whether C. nutans can offer protection on stroke damage in brain remain largely unknown. In the present study, we demonstrated protective effects of C. nutans extract to ameliorate neuronal apoptotic death in the oxygen-glucose deprivation model and to reduce infarction and mitigate functional deficits in the middle cerebral artery occlusion model, either administered before or after hypoxic/ischemic insult...
September 23, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28920799/presumptive-pit-viper-envenomation-in-psittacines-in-a-brazilian-zoo
#7
Mathias Dislich, Peter Wohlsein, Anna Sophie Croukamp, Ulrich Neumann
Snake bites represent a serious public health risk in many regions of the globe, especially in tropical areas. Clinical signs and postmortem changes are well described in human and other mammalian species. However, detailed case reports about venomous snake attacks in avian species are limited. This report describes presumptive fatal envenomations in three psittacines caused by pit vipers in a Brazilian zoo. In one case, a Brazilian lancehead (Bothrops moojeni) was captured in the aviary. In all three cases the dermis around the suspected snake bite area exhibited hemorrhages and edema...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28913414/diversity-of-aerobic-bacteria-isolated-from-oral-and-cloacal-cavities-from-free-living-snakes-species-in-costa-rica-rainforest
#8
Allan Artavia-León, Ariel Romero-Guerrero, Carolina Sancho-Blanco, Norman Rojas, Rodolfo Umaña-Castro
Costa Rica has a significant number of snakebites per year and bacterial infections are often complications in these animal bites. Hereby, this study aims to identify, characterize, and report the diversity of the bacterial community in the oral and cloacal cavities of venomous and nonvenomous snakes found in wildlife in Costa Rica. The snakes where captured by casual encounter search between August and November of 2014 in the Quebrada González sector, in Braulio Carrillo National Park. A total of 120 swabs, oral and cloacal, were taken from 16 individuals of the Viperidae and Colubridae families...
2017: International Scholarly Research Notices
https://www.readbyqxmd.com/read/28878925/severe-japanese-mamushi-gloydius-blomhoffii-bite
#9
Ezekiel Wong Toh Yoon, Yuichiro Otani, Syu Kabuto
Venomous snake bites can be life threatening, occasionally requiring intensive care. For Mamushi bites, conservative treatment may be possible in mild cases but for severe cases or in cases where symptoms do not improve, a horse-derived antivenom is indicated.
September 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28876572/haemoperitoneum-secondary-to-snake-bite
#10
S Rahim
BACKGROUND: Literature supports that very rarely the venom of "Hemotoxic Snake" (Russell's Vipers) affect haemostasis by secreting thrombin-like enzyme which promotes formation of unstable clots. Such clots could lead to fibrin deposition in micro circulation that in turn consume platelets and coagulation factors (consumption coagulopathy). Clinical presentation is mainly spontaneous bleeding and coagulopathy. In this case the significant effects of altered coagulation were observed in retropetitoneum and the patient presented in casuality as acute abdomen...
September 2017: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/28842354/fatal-stroke-after-bothrops-snakebite-in-the-amazonas-state-brazil-a-case-report
#11
Sâmella Silva de Oliveira, Luciana Aparecida Freitas-de-Sousa, Eliane Campos Alves, Luiz Carlos de Lima Ferreira, Iran Mendonça da Silva, Marcus Vinícius Guimarães de Lacerda, Hui Wen Fan, Ana Maria Moura-da-Silva, Wuelton Marcelo Monteiro
Bothrops atrox is the snake responsible for the majority of snakebites in the Brazilian Amazon. Patients generally evolve to local manifestations such as edema, pain and ecchymoses. Systemic effects of B. atrox venom are usually restricted to blood incoagulability and spontaneous bleeding. However, in a few cases, bleeding in the central nervous system may occur, which can lead to sequels and deaths. Here, we report a case of a 59 year-old woman who presented edema, pain and ecchymoses on the right foot, headache, nausea, diarrhea, hypertension and blood incoagulability after the bite by Bothrops snake in the Brazilian Amazon...
November 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28835176/locked-in-syndrome-post-snake-bite-a-rare-presentation
#12
Aditya Singh Kutiyal, Chetanya Malik, Gitika Hyanki
No abstract text is available yet for this article.
January 1, 2017: Tropical Doctor
https://www.readbyqxmd.com/read/28831315/an-unexpected-case-of-black-mamba-dendroaspis-polylepis-bite-in-switzerland
#13
Verena Quarch, Lukas Brander, Luca Cioccari
Mambas (genus Dendroaspis) are among the most feared venomous African snakes. Without medical treatment, mamba bites are frequently fatal. First-aid treatment includes lymphatic retardation with the pressure immobilization technique. Medical management comprises continuous monitoring, securing patency of the airway, ensuring adequate ventilation, symptomatic measures, and administration of specific antivenin. We report an unusual case of a snake breeder bitten by a black mamba in Switzerland, report the clinical course, and review the lifesaving emergency management of mamba bites...
2017: Case Reports in Critical Care
https://www.readbyqxmd.com/read/28830630/false-positive-immunoassay-for-acetyl-choline-receptor-antibody-achr-ab-in-patients-exposed-to-polyvalent-antisnake-venom
#14
Kaushik Sundar, Shankar Venkatasubramanian, Sundar Shanmugam, Preetam Arthur, Ramakrishnan Subbaraya, Philo Hazeena
Acute flaccid paralysis is a neuromuscular emergency characterized by rapidly worsening weakness that evolves quickly to cause diaphragmatic failure. The challenge for the treating physician is to stabilize the patient, generate the differential diagnosis and determine the management; all in quick time. Neurotoxic snake bites have inadequate signs of inflammation and are easily missed. Myasthenic crisis, on the other hand, could be the first sign of myasthenia gravis in up to 20% of patients. Both present with acute respiratory failure and inadequate history...
October 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28830248/naja-atra-snakebite-in-taiwan
#15
Yan-Chiao Mao, Po-Yu Liu, Liao-Chun Chiang, Chih-Sheng Lai, Kuo-Lung Lai, Cheng-Hsuan Ho, Te-Huo Wang, Chen-Chang Yang
BACKGROUND: Naja atra snakebite is uncommon in Taiwan and causes distinct effects on its victims. Although the Taiwan government produces its own specific antivenom, little information on the management of N. atra snakebite is available. MATERIALS AND METHODS: We retrospectively evaluated 183 patients admitted to two medical centers. Of these, 45 were identified as definite cases of N. atra snakebite, 86 as suspected cases, and 52 as clinical cases. Demographic data, symptomatology, and management were compared between these case groups...
August 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28799310/venomous-snake-bite-in-india-why-do-50-000-indians-die-every-year
#16
Jaideep C Menon, Joseph K Joseph, Romulus E Whitaker
Snakebite is an occupational hazard causing considerable morbidity and mortality worldwide, particularly so in tropical countries like India. An estimated 50,000 Indians die due to venomous snakebite every year, seventy percent of whom are males between the ages of 20 to 50 years. Along with the associated morbidity and mortality, snakebite leads to a significant financial burden on the victim, both by way of hospital bills and labour hours lost. Snakebite is also a cause for considerable psychological stress among survivors...
August 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28768797/has-snake-fang-evolution-lost-its-bite-new-insights-from-a-structural-mechanics-viewpoint
#17
Chris Broeckhoven, Anton du Plessis
Venomous snakes-the pinnacle of snake evolution-are characterized by their possession of venom-conducting fangs ranging from grooved phenotypes characterizing multiple lineages of rear-fanged taxa to tubular phenotypes present in elapids, viperids and atractaspidines. Despite extensive research, controversy still exists on the selective pressures involved in fang phenotype diversification. Here, we test the hypothesis that larger fangs and consequently a shift to an anterior position in the maxilla evolved to compensate for the costs of structural changes, i...
August 2017: Biology Letters
https://www.readbyqxmd.com/read/28764620/the-australian-snakebite-project-2005-2015-asp-20
#18
MULTICENTER STUDY
Christopher I Johnston, Nicole M Ryan, Colin B Page, Nicholas A Buckley, Simon Ga Brown, Margaret A O'Leary, Geoffrey K Isbister
OBJECTIVE: To describe the epidemiology, treatment and adverse events after snakebite in Australia. DESIGN: Prospective, multicentre study of data on patients with snakebites recruited to the Australian Snakebite Project (2005-2015) and data from the National Coronial Information System. Setting, participants: Patients presenting to Australian hospitals with suspected or confirmed snakebites from July 2005 to June 2015 and consenting to participation. MAIN OUTCOME MEASURES: Demographic data, circumstances of bites, clinical effects of envenoming, results of laboratory investigations and snake venom detection kit (SVDK) testing, antivenom treatment and adverse reactions, time to discharge, deaths...
August 7, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28764224/paroxysmal-atrial-fibrillation-due-to-venomous-snake-bite
#19
Samarth Virmani, Rama Bhat, Raghavendra Rao, Raahat Kapur, Savio Dsouza
Snake bites are common all around the world with a great prevalence in South Asia and the Indian subcontinent. Although they are associated with common complications such as local swelling, bleeding at site of bite, coagulopathy, etc., few rare cardiac complications such as myocardial infarctions and arrhythmias have also been described in literature. The following is a case report of a patient who had a snake bite with a Russell's viper which resulted in atrial fibrillation, which resolved on treatment with anti snake venom...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28761270/medicinal-plants-and-bone-healing
#20
REVIEW
Vibha Singh
Fracture is defined as complete or incomplete separation in the continuity of bone Fracture healing is a complex physiological process that involves the coordinated participation of hematopoietic and immune cells within bone marrow. It conjunction with vascular and skeletal cell precursors it also includes mesenchymal stem cells which are recruited from the circulation and the surrounding tissues. It is estimated that 80% of the population in developing countries still rely on the traditional herbal medicines...
January 2017: National Journal of Maxillofacial Surgery
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