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Journal of Venomous Animals and Toxins Including Tropical Diseases

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https://www.readbyqxmd.com/read/28405201/interleukin-8-251%C3%A2-t-a-polymorphism-in-children-and-teenagers-infected-with-helicobacter-pylori
#1
Marina Saes, Roger Willian de Labio, Lucas Trevizani Rasmussen, Spencer Luiz Marques Payão
BACKGROUND: Helicobacter pylori (H. pylori) is a gram-negative bacterium that colonizes the human stomach and causes a variety of gastric diseases. This study evaluated the correlations between the -251 (T>A) (rs4073) polymorphism of interleukin-8 (IL-8), the etiology of gastric disease, and H. pylori infection in pediatric and adolescent patients. METHODS: DNA samples were obtained from 285 gastric biopsies from pediatric patients. H. pylori was detected by PCR, whereas PCR-RFLP was used to characterize the -251 (T>A) polymorphism of IL-8...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28396683/preparation-and-neutralization-efficacy-of-igy-antibodies-raised-against-deinagkistrodon-acutus-venom
#2
Jinhua Liu, Qiyi He, Wenwen Wang, Bin Zhou, Bo Li, Yingfeng Zhang, Cong Luo, Diancheng Chen, Jia Tang, Xiaodong Yu
BACKGROUND: The five-paced pit viper (Deinagkistrodon acutus), endemic to China and northern Vietnam, is responsible for most snakebites in the Chinese territory. Antivenom produced from horses is the main treatment for snakebites, but it may cause numerous clinical side effects and have other disadvantages involved in their production such as the welfare of animals. The present study was conducted aiming to develop an alternative antibody (IgY) from the egg yolk of leghorn chickens immunized with snake venom...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28396682/heterologous-fibrin-sealant-derived-from-snake-venom-from-bench-to-bedside-an-overview
#3
REVIEW
Rui Seabra Ferreira, Luciana Curtolo de Barros, Luciana Patrícia Fernandes Abbade, Silvia Regina Catharino Sartori Barraviera, Maria Regina Cavariani Silvares, Leticia Gomes de Pontes, Lucilene Delazari Dos Santos, Benedito Barraviera
Hemostatic and adhesive agents date back to World War II, when homologous fibrin sealant came onto scene. Considering that infectious diseases can be transmitted via human blood, a new heterologous fibrin sealant was standardized in the 1990s. Its components were a serine protease (a thrombin-like enzyme) extracted from the venom of Crotalus durissus terrificus snakes and a fibrinogen-rich cryoprecipitate extracted from the blood of Bubalus bubalis buffaloes. This new bioproduct has been used as a coagulant, sealant, adhesive and recently as a candidate scaffold for mesenchymal stem cells and bone and cartilage repair...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28344596/deinagkistrodon-acutus-envenomation-a-report-of-three-cases
#4
Chin-Lung Cheng, Yan-Chiao Mao, Po-Yu Liu, Liao-Chun Chiang, Shu-Chen Liao, Chen-Chang Yang
BACKGROUND: Deinagkistrodon acutus envenomation is associated with severe hematological and wound complications but is rarely described. CASE PRESENTATION: Herein, we report three cases of victims bitten by D. acutus and indicate that rapid-onset severe coagulopathy and thrombocytopenia are distinct features of D. acutus snakebite, which are not observed in other crotaline snakebites (i.e., Trimeresurus stejnegeri and Protobothrops mucrosquamatus) in Taiwan. The toxic effects could occur as early as 2 to 3 h following D...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28344595/alpha-type-phospholipase-a2-inhibitors-from-snake-blood
#5
REVIEW
Norival A Santos-Filho, Claudia T Santos
It is of popular and scientific knowledge that toxins from snake venom (among them the PLA2 and myotoxins) are neutralized by various compounds, such as antibodies and proteins purified from animal blood. Venomous and nonvenomous snakes have PLA2 inhibitory proteins, called PLIs, in their blood serum. One hypothesis that could explain the presence of these PLIs in the serum of venomous snakes would be self-protection against the enzymes of their own venom, which eventually could reach the circulatory system...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28344594/articular-inflammation-induced-by-an-enzymatically-inactive-lys49-phospholipase-a2-activation-of-endogenous-phospholipases-contributes-to-the-pronociceptive-effect
#6
Renata Gonçalves Dias, Sandra Coccuzzo Sampaio, Morena Brazil Sant'Anna, Fernando Queiroz Cunha, José María Gutiérrez, Bruno Lomonte, Yara Cury, Gisele Picolo
BACKGROUND: Arthritis is a set of inflammatory conditions that induce aching, stiffness, swelling, pain and may cause functional disability with severe consequences to the patient's lives. These are multi-mediated pathologies that cannot be effectively protected and/or treated. Therefore, the aim of this study was to establish a new model of acute arthritis, using a Lys49-PLA2 (Bothrops asper myotoxin II; MT-II) to induce articular inflammation. METHODS: The articular inflammation was induced by MT-II (10 μg/joint) injection into the left tibio-tarsal or femoral-tibial-patellar joints...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28344593/agaricus-brasiliensis-polysaccharides-stimulate-human-monocytes-to-capture-candida-albicans-express-toll-like-receptors-2-and-4-and-produce-pro-inflammatory-cytokines
#7
Priscila Raquel Martins, Ângela Maria Victoriano de Campos Soares, Andrea Vanessa da Silva Pinto Domeneghini, Márjorie Assis Golim, Ramon Kaneno
BACKGROUND: Agaricus brasiliensis is a medicinal mushroom with immunomodulatory and antitumor activities attributed to the β-glucans presented in the polysaccharide fraction of its fruiting body. Since β-glucans enhance cellular immunoresponsiveness, in this study we aimed to evaluate the effect of an acid-treated polysaccharide-rich fraction (ATF) of A. brasiliensis on the ability of human monocytes to adhere/phagocyte C. albicans yeast cells, their expression of pattern recognition receptors and their ability to produce cytokines...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28331489/reversible-atrial-fibrillation-following-crotalinae-envenomation
#8
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/28331488/from-the-perception-of-a-cluster-of-cases-of-children-with-microcephaly-to-congenital-zika-syndrome-in-brazil-the-lessons-we-have-learned-and-the-challenges-that-lie-ahead-of-us
#9
Erlane Marques Ribeiro, Thayse Figueiredo Lopes, Sáile Cavalcante Kerbage, André Luis Santos Pessoa, Luciano Pamplona de Góes Cavalcanti
No abstract text is available yet for this article.
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
#10
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/28293254/multiple-uses-of-fibrin-sealant-for-nervous-system-treatment-following-injury-and-disease
#11
REVIEW
Natalia Perussi Biscola, Luciana Politti Cartarozzi, Suzana Ulian-Benitez, Roberta Barbizan, Mateus Vidigal Castro, Aline Barroso Spejo, Rui Seabra Ferreira, Benedito Barraviera, Alexandre Leite Rodrigues Oliveira
Lesions to the nervous system often produce hemorrhage and tissue loss that are difficult, if not impossible, to repair. Therefore, scar formation, inflammation and cavitation take place, expanding the lesion epicenter. This significantly worsens the patient conditions and impairment, increasing neuronal loss and glial reaction, which in turn further decreases the chances of a positive outcome. The possibility of using hemostatic substances that also function as a scaffold, such as the fibrin sealant, reduces surgical time and improve postoperative recovery...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28293253/can-anti-bothropstoxin-i-antibodies-discriminate-between-bothrops-jararaca-and-bothrops-jararacussu-venoms
#12
Ricardo Teixeira Araujo, Carlos Corrêa-Netto, Leonora Brazil-Más, Caio Raony Farina Silveira, Irene Fernandes, Russolina Benedeta Zingali
BACKGROUND: Snakes of the genus Bothrops, popularly known as pit vipers, are responsible for most cases of snakebite in Brazil. Within this genus, Bothrops jararacussu and B. jararaca deserve special attention due to the severity of their bites and for inhabiting densely populated areas. Regarding the treatment of snakebites by Bothrops jararacussu, questions have been raised about the effectiveness of the specific bothropic antivenom in neutralizing myotoxic effects; however, there are no accurate data for humans...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28289430/envenoming-by-viridovipera-stejnegeri-snake-a-patient-with-liver-cirrhosis-presenting-disruption-of-hemostatic-balance
#13
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
https://www.readbyqxmd.com/read/28289429/hematological-and-plasma-biochemical-parameters-in-a-wild-population-of-naja-naja-linnaeus-1758-in-sri-lanka
#14
Duminda S B Dissanayake, Lasanthika D Thewarage, Rathnayake M P Manel Rathnayake, Senanayake A M Kularatne, Jamburagoda G Shirani Ranasinghe, Rajapakse P V Jayantha Rajapakse
BACKGROUND: Hematological studies of any animal species comprise an important diagnostic method in veterinary medicine and an essential tool for the conservation of species. In Sri Lanka, this essential technique has been ignored in studies of many species including reptiles. The aim of the present work was to establish a reference range of hematological values and morphological characterization of wild spectacled cobras (Naja naja) in Sri Lanka in order to provide a diagnostic tool in the assessment of health condition in reptiles and to diagnose diseases in wild populations...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28239394/standardization-and-validation-of-dot-elisa-assay-for-paracoccidioides-brasiliensis-antibody-detection
#15
Camila Mika Kamikawa, Rinaldo Poncio Mendes, Adriana Pardini Vicentini
BACKGROUND: Paracoccidioidomycosis (PCM) is a neglected systemic mycosis caused by a dimorphic fungus of the Paracoccidioides genus. The standard diagnosis is based on isolation of the fungi in culture, and by microscopic visualization of characteristic multiple budding yeast cells in biological samples. However, in some situations, access to the site of injury prevents the collection of biological material. A variety of immuno-serological techniques has proven useful for allowing inferring diagnosis with a certain degree of certainty, thus optimizing time...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28228775/envenomation-by-the-red-tailed-coral-snake-micrurus-mipartitus-in-colombia
#16
Carlos A Cañas, Fernando Castro-Herrera, Santiago Castaño-Valencia
BACKGROUND: Although the red-tailed coral snake (Micrurus mipartitus) is widely distributed in Colombia and its venom is highly neurotoxic and life threatening, envenomation by this species is rare. Therefore, this report may shed some light on the clinical presentation of M. mipartitus bites. CASE PRESENTATIONS: Herein, we describe two cases of patients bitten by red-tailed coral snakes, illustrating the clinical presentation of the victims, the outcomes and treatment provided...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28203248/structural-determinants-of-the-hyperalgesic-activity-of-myotoxic-lys49-phospholipase%C3%A2-a2
#17
Vanessa Olzon Zambelli, Lucimara Chioato, Vanessa Pacciari Gutierrez, Richard John Ward, Yara Cury
BACKGROUND: Bothropstoxin-I (BthTx-I) is a Lys49-phospholipase A2 (Lys49-PLA2) from the venom of Bothrops jararacussu, which despite of the lack of catalytic activity induces myotoxicity, inflammation and pain. The C-terminal region of the Lys49-PLA2s is important for these effects; however, the amino acid residues that determine hyperalgesia and edema are unknown. The aim of this study was to characterize the structural determinants for the Lys49-PLA2-induced nociception and inflammation...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28194160/highlights-in-the-knowledge-of-brown-spider-toxins
#18
REVIEW
Daniele Chaves-Moreira, Andrea Senff-Ribeiro, Ana Carolina Martins Wille, Luiza Helena Gremski, Olga Meiri Chaim, Silvio Sanches Veiga
Brown spiders are venomous arthropods that use their venom for predation and defense. In humans, bites of these animals provoke injuries including dermonecrosis with gravitational spread of lesions, hematological abnormalities and impaired renal function. The signs and symptoms observed following a brown spider bite are called loxoscelism. Brown spider venom is a complex mixture of toxins enriched in low molecular mass proteins (4-40 kDa). Characterization of the venom confirmed the presence of three highly expressed protein classes: phospholipases D, metalloproteases (astacins) and insecticidal peptides (knottins)...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28138332/erratum-to-pediatric-suppurative-parotitis-caused-by-burkholderia-pseudomallei
#19
Zengzhen Fu, Yingzi Lin, Qiang Wu, Qianfeng Xia
[This corrects the article DOI: 10.1186/s40409-016-0086-3.].
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28115922/ocellatin-peptides-from-the-skin-secretion-of-the-south-american-frog-leptodactylus-labyrinthicus-leptodactylidae-characterization-antimicrobial-activities-and-membrane-interactions
#20
Karla A G Gusmão, Daniel M Dos Santos, Virgílio M Santos, María Esperanza Cortés, Pablo V M Reis, Vera L Santos, Dorila Piló-Veloso, Rodrigo M Verly, Maria Elena de Lima, Jarbas M Resende
BACKGROUND: The availability of antimicrobial peptides from several different natural sources has opened an avenue for the discovery of new biologically active molecules. To the best of our knowledge, only two peptides isolated from the frog Leptodactylus labyrinthicus, namely pentadactylin and ocellatin-F1, have shown antimicrobial activities. Therefore, in order to explore the antimicrobial potential of this species, we have investigated the biological activities and membrane interactions of three peptides isolated from the anuran skin secretion...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
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