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https://www.readbyqxmd.com/read/28339821/russell-s-viper-envenomation-acute-hypopituitarism-or-acute-primary-adrenal-insufficiency
#1
A Krishnamurthy, V Y Vishnu
No abstract text is available yet for this article.
February 28, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28339808/russell-s-viper-envenomation-acute-hypopituitarism-or-acute-primary-adrenal-insufficiency
#2
Srinivas Rajagopala, Molly Mary Thabah
No abstract text is available yet for this article.
February 28, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28335389/characteristics%C3%A2-and%C3%A2-lethality%C3%A2-of%C3%A2-a%C3%A2-novel%C3%A2-recombinant%C3%A2-dermonecrotic%C3%A2-venom%C3%A2-phospholipase%C3%A2-d%C3%A2-from%C3%A2-hemiscorpius%C3%A2-lepturus
#3
Elham Torabi, Mahdi Behdani, Mohammad Hosseininejad Chafi, Reza Moazzami, Jean-Marc Sabatier, Vahid Khalaj, Delavar Shahbazzadeh, Kamran Pooshang Bagheri
Hemoscorpius lepturus is the most medically important scorpion in Iran. The clinical signs of H. lepturus envenomation are remarkably similar to those reported for brown spiders, including dermonecrosis, hematuria, renal failure and even death. The lethality and toxicity of brown spiders' venom have been attributed to its phospholipase D activity. This study aims to identify a phospholipase D with possible lethality and dermonecrotic activity in H. lepturus venom. In this study, a cDNA library of the venom glands was generated by Illumina RNA sequencing...
March 13, 2017: Toxins
https://www.readbyqxmd.com/read/28331489/reversible-atrial-fibrillation-following-crotalinae-envenomation
#4
Dan Quan, Kenneth Zurcher
BACKGROUND: Cardiotoxicity is a documented complication of Crotalinae envenomation. Reported cardiac complications following snake envenomation have included acute myocardial infarction, electrocardiogram abnormalities and arrhythmias. Few reports exist describing arrhythmia induced by viper envenomation and to our knowledge none describe arrhythmia induced by Crotalinae envenomation. This report concerns the first known case of atrial fibrillation precipitated by rattlesnake bite. CASE PRESENTATION: A 73-year-old Caucasian man with a past medical history of hypertension, hyperlipidemia, type 1 diabetes mellitus, and a baseline first-degree atrioventricular block presented to the emergency department following a rattlesnake bite to his left lower leg...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28331487/a-clinical-trial-protocol-to-treat-massive-africanized-honeybee-apis-mellifera-attack-with-a-new-apilic-antivenom
#5
Alexandre Naime Barbosa, Leslie Boyer, Jean-Philippe Chippaux, Natalia Bronzatto Medolago, Carlos Antonio Caramori, Ariane Gomes Paixão, João Paulo Vasconcelos Poli, Mônica Bannwart Mendes, Lucilene Delazari Dos Santos, Rui Seabra Ferreira, Benedito Barraviera
BACKGROUND: Envenomation caused by multiple stings from Africanized honeybees Apis mellifera constitutes a public health problem in the Americas. In 2015, the Brazilian Ministry of Health reported 13,597 accidents (incidence of seven cases per 100,000 inhabitants) with 39 deaths (lethality of 0.25%). The toxins present in the venom, which include melittin and phospholipase A2, cause lesions in diverse organs and systems that may be fatal. As there has been no specific treatment to date, management has been symptomatic and supportive only...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28327816/human-envenomations-caused-by-portuguese-man-of-war-physalia-physalis-in-urban-beaches-of-s%C3%A3-o-luis-city-maranh%C3%A3-o-state-northeast-coast-of-brazil
#6
Denise Maria Ramalho Ferreira Bastos, Vidal Haddad, Jorge Luiz Silva Nunes
INTRODUCTION: The clinical and epidemiological aspects associated with Portuguese man-of-war envenomation were investigated and characterized. METHODS: Data from recorded envenomation events between 2005 and 2013 were provided by the GBMar (Group of Firemen Maritime of Maranhão State) and SEMUSC (Municipal Secretary of Security with Citizenship). RESULTS: Most victims were children, and clinical manifestations included intense pain, edema, erythema, and rare systemic manifestations...
January 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28327442/immune-cells-and-mediators-involved-in-the-inflammatory-responses-induced-by-a-p-i-metalloprotease-and-a-phospholipase-a2-from-bothrops-atrox-venom
#7
Danilo L Menaldo, Carolina P Bernardes, Karina F Zoccal, Anna L Jacob-Ferreira, Tássia R Costa, Maria P F M Del Lama, Rose M Z G Naal, Fabiani G Frantz, Lúcia H Faccioli, Suely V Sampaio
Bothrops envenomations can promote severe inflammatory responses by inducing edema, pain, leukocyte recruitment and release of chemical mediators by local cells. In the present study, two toxins from Bothrops atrox venom (the P-I metalloprotease Batroxase and the acidic phospholipase A2 BatroxPLA2) were evaluated in relation to their inflammatory effects induced in vivo and in vitro, mainly focusing on the participation of different immune cells and inflammatory mediators. Both toxins mainly promoted acute inflammatory responses with significant recruitment of neutrophils in the early hours (1-4h) after administration into the peritoneal cavity of C57BL/6 mice, and increased infiltration of mononuclear cells especially after 24h...
March 16, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28327300/rbaltmip-a-recombinant-alpha-type-myotoxin-inhibitor-from-bothrops-alternatus-rhinocerophis-alternatus-snake-as-a-potential-candidate-to-complement-the-antivenom-therapy
#8
Norival A Santos-Filho, Tiago S Sousa, Johara Boldrini-França, Ludier K Santos-Silva, Danilo L Menaldo, Flávio Henrique-Silva, Adélia C O Cintra, Helen J Laure, Carla C N Mamede, Fábio Oliveira, Thalita B Riul, Marcelo Dias-Baruffi, José C Rosa, Suely V Sampaio
Phospholipase A2 inhibitors (PLIs) are important targets in the search and development of new drugs. This study aimed at evaluating the potential of an alpha-type phospholipase A2 inhibitor from Bothrops alternatus (Rhinocerophis alternatus) snake in its recombinant form (rBaltMIP) to complement the conventional antivenom therapy. Biochemical experiments showed that rBaltMIP presented pI 5.8 and molecular masses of ∼21 kDa by SDS-PAGE and 19.57 kDa by MALDI/TOF MS. After tryptic peptides sequencing, the results were compared with other PLIs available in databases, showing 100% identity between rBaltMIP and its native inhibitor BaltMIP and from 92% to 96% identity with other inhibitors...
December 15, 2016: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28323526/addiction-to-snake-venom
#9
Saibal Das, Preeti Barnwal, Tanay Maiti, Anand Ramasamy, Somnath Mondal, Dinesh Babu
The nature of addiction depends on various factors. The tendency to have already used several addictive substances and to seek high sensation experiences as a result of specific personality traits may lead to extreme and peculiar forms of addictions. Even belonging to specific social and cultural background may lead to such forms of addiction such as intentional snake bite and willful envenomation. In this article, we have discussed the peculiarities and practical insight of such addiction to snake venom. The possible molecular mechanism behind such venom-mediated reinforcement has also been highlighted...
March 21, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28318633/capillary-leak-syndrome-etiologies-pathophysiology-and-management
#10
REVIEW
Eric Siddall, Minesh Khatri, Jai Radhakrishnan
In various human diseases, an increase in capillary permeability to proteins leads to the loss of protein-rich fluid from the intravascular to the interstitial space. Although sepsis is the disease most commonly associated with this phenomenon, many other diseases can lead to a "sepsis-like" syndrome with manifestations of diffuse pitting edema, exudative serous cavity effusions, noncardiogenic pulmonary edema, hypotension, and, in some cases, hypovolemic shock with multiple-organ failure. The term capillary leak syndrome has been used to describe this constellation of disease manifestations associated with an increased capillary permeability to proteins...
March 16, 2017: Kidney International
https://www.readbyqxmd.com/read/28315380/primary-structures-and-partial-toxicological-characterization-of-two-phospholipases-a2-from-micrurus-mipartitus-and-micrurus-dumerilii-coral-snake-venoms
#11
Paola Rey-Suárez, Vitelbina Núñez, Mónica Saldarriaga-Córdoba, Bruno Lomonte
Snake venom phospholipases A2 (PLA2) share high sequence identities and a conserved structural scaffold, but show important functional differences. Only a few PLA2s have been purified and characterized from coral snake (Micrurus spp.) venoms, and their role in envenomation remains largely unknown. In this report, we describe the isolation, sequencing and partial functional characterization of two Micrurus PLA2s: MmipPLA2 from Micrurus mipartitus and MdumPLA2 from Micrurus dumerilii, two species of clinical importance in Colombia...
March 14, 2017: Biochimie
https://www.readbyqxmd.com/read/28306718/experimental-bothrops-atrox-envenomation-efficacy-of-antivenom-therapy-and-the-combination-of-bothrops-antivenom-with-dexamethasone
#12
Gabriella Neves Leal Santos Barreto, Sâmella Silva de Oliveira, Isabelle Valle Dos Anjos, Hipocrates de Menezes Chalkidis, Rosa Helena Veras Mourão, Ana Maria Moura da Silva, Ida Sigueko Sano-Martins, Luis Roberto de Camargo Gonçalves
Bothrops atrox snakes are the leading cause of snake bites in Northern Brazil. The venom of this snake is not included in the antigen pool used to obtain the Bothrops antivenom. There are discrepancies in reports on the effectiveness of this antivenom to treat victims bitten by B. atrox snakes. However, these studies were performed using a pre-incubation of the venom with the antivenom and, thus, did not simulate a true case of envenomation treatment. In addition, the local lesions induced by Bothrops venoms are not well resolved by antivenom therapy...
March 17, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28302413/characterization-of-daboia-russelii-and-naja-naja-venom-neutralizing-ability-of-an-undocumented-indigenous-medication-in-sri-lanka
#13
Madhushika M Silva, Sampath S Seneviratne, Devaka K Weerakoon, Charitha L Goonasekara
BACKGROUND: Indigenous medicinal practice in Sri Lanka talks about powerful compounds extracted from native plants for treating venomous snake bites which are hardly documented in literature but are used by the indigenous doctors for thousand years. OBJECTIVE: We screened the neutralizing ability of a herbal preparation practiced in indigenous medicine of Sri Lanka, consisting of Sansevieria cylindrica, Jatropha podagrica and Citrus aurantiifolia, for its ability to neutralize venom toxins of Naja naja (Common Cobra) and Daboia russelii (Russell's viper)...
March 13, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/28302077/clinical-and-laboratory-parameters-associated-with-acute-kidney-injury-in-patients-with-snakebite-envenomation-a-prospective-observational-study-from-myanmar
#14
Kyi-Phyu Aye, Vipa Thanachartwet, Chit Soe, Varunee Desakorn, Khin-Thida Thwin, Supat Chamnanchanunt, Duangjai Sahassananda, Thanom Supaporn, Visith Sitprija
BACKGROUND: Snakebite-related acute kidney injury (AKI) is a common community-acquired AKI in tropical countries leading to death and disability. The aims of this study were to (1) determine the occurrence of snakebite-related AKI, (2) assess factors at presentation that are associated with snakebite-related AKI, and (3) determine the outcomes of patients with snakebite-related AKI. METHODS: We conducted a prospective observational study of patients with snake envenomation at the three academic tertiary care hospitals in Yangon, Myanmar between March 2015 and June 2016...
March 16, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28300747/pathophysiology-of-dilatation-of-pupils-due-to-scorpion-and-snake-envenomation-and-its-therapeutic-value-clinical-observations
#15
Himmatrao S Bawaskar, Parag H Bawaskar, Pramodini H Bawaskar
Dilated nonreacting pupils are routinely taken as a sign of irreversible brain damage. Alpha-receptor stimulation (scorpion sting) and presynaptic acetylcholine receptor blocker (krait bite) may result in dilation of pupils without involvement of the brain. This study was aimed to clinically evaluate the response of pupils in scorpion sting and krait bite. Victims of scorpion sting and krait bite were chosen from Raigad district. Scorpion sting and krait bite cases were admitted to hospital and were clinically evaluated in detail regarding neurological manifestations...
January 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28298071/protective-effect-of-dracontium-dubium-against-bothrops-asper-venom
#16
Daneiva Caro, Yanet Ocampo, Jenny Castro, Lia Barrios, Rubén Salas, Luis A Franco
In Colombia, Bothrops asper is responsible for 70-90% of ophidians accidents reported annually. Envenoming occurs mainly in rural areas where both antivenom and health centers are scarce. Thus, patients are frequently treated by local healers that employ medicinal herbs; including several species belonging to Dracontium genus. In this work, we evaluated the neutralizing activity of Dracontium dubium Kunth against the lethal, inflammatory, coagulant and hemolytic effects produced by B. asper venom. Mice treated with D...
March 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28296161/passive-vectoring-of-entomopathogenic-fungus-beauveria-bassiana-among-the-wax-moth-galleria-mellonella-larvae-by-the-ectoparasitoid-habrobracon-hebetor-females
#17
Vadim Yu Kryukov, Natalia A Kryukova, Maksim V Tyurin, Olga N Yaroslavtseva, Viktor V Glupov
Females of the ectoparasitoid Habrobracon hebetor attack and envenomate numerous host individuals during oviposition. The vectoring of the entomopathogenic fungus Beauveria bassiana during the adhesion stage by ectoparasitoid females among the wax moth larvae Galleria mellonella was explored under laboratory conditions. Vectoring occurred both from infected parasitoids to wax moth larvae and from infected to healthy wax moth larvae by parasitoids. The efficacy of vectoring in both cases was dose dependent. Parasitoid females were unable to recognize infected larvae in a labyrinth test...
March 15, 2017: Insect Science
https://www.readbyqxmd.com/read/28294982/cubozoan-sting-site-seawater-rinse-scraping-and-ice-can-increase-venom-load-upending-current-first-aid-recommendations
#18
Angel Anne Yanagihara, Christie L Wilcox
Cnidarian envenomations are the leading cause of severe and lethal human sting injuries from marine life. The total amount of venom discharged into sting-site tissues, sometimes referred to as "venom load", has been previously shown to correlate with tentacle contact length and sequelae severity. Since <1% of cnidae discharge upon initial tentacle contact, effective and safe removal of adherent tentacles is of paramount importance in the management of life-threatening cubozoan stings. We evaluated whether common rinse solutions or scraping increased venom load as measured in a direct functional assay of venom activity (hemolysis)...
March 15, 2017: Toxins
https://www.readbyqxmd.com/read/28289514/modern-trends-in-animal-venom-research-omics-and-nanomaterials
#19
EDITORIAL
Yuri N Utkin
Animal venom research is a specialized investigation field, in which a number of different methods are used and this array is constantly expanding. Thus, recently emerged omics and nanotechnologies have already been successfully applied to venom research. Animal venoms have been studied for quite a long time. The traditional reductionist approach has been to isolate individual toxins and then study their structure and function. Unfortunately, the characterization of the venom as a whole system and its multiple effects on an entire organism were not possible until recent times...
February 26, 2017: World Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28289430/envenoming-by-viridovipera-stejnegeri-snake-a-patient-with-liver-cirrhosis-presenting-disruption-of-hemostatic-balance
#20
Chih-Ying Chien, Shu-Chen Liao, Chien-Hung Liao, Ting-Shuo Huang, Yu-Hsien Chen
BACKGROUND: In most cases of envenoming by the green habu Viridovipera stejnegeri in Taiwan coagulopathy is not observed. CASE PRESENTATION: Herein, we describe the case of a patient with liver cirrhosis who developed venom-induced consumptive coagulopathy after V. stejnegeri bite. Laboratory investigation revealed the following: prothrombin time > 100 s (international normalized ratio > 10), activated partial thromboplastin time > 100 s, fibrinogen < 50 mg/dL, and fibrin degradation product > 80 μg/mL...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
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