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A checklist of the scorpions of Ecuador (Arachnida: Scorpiones), with notes on the distribution and medical significance of some species J. Venom. Anim. Toxins incl. Trop. Dis.
Brito,Gabriel; Borges,Adolfo.
Ecuador harbors one of the most diverse Neotropical scorpion faunas, hereby updated to 47 species contained within eight genera and five families, which inhabits the “Costa” (n= 17), “Sierra” (n= 34), “Oriente” (n= 16) and “Insular” (n= 2) biogeographical regions, corresponding to the western coastal, Andean, Amazonian, and the Galápagos archipelago regions, respectively. The genusTityus Koch, in the family Buthidae, responsible for severe/fatal accidents elsewhere in northern South America and the Amazonia, is represented in Ecuador by 16 species, including T. asthenes, which has caused fatalities in Colombia and Panama, and now in the Ecuadorian provinces of Morona Santiago and Sucumbíos. Underestimation of the medical significance of scorpion envenoming...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; Ecuador; Ananteris; Brachistosternus; Chactas; Centruroides; Hadruroides; Scorpionism; Teuthraustes; Tityus; Troglotayosicus.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992015000100210
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A newly described scorpion species, Leiurus abdullahbayrami (Scorpion: Buthidae), and the lethal potency and in vivo effects of its venom J. Venom. Anim. Toxins incl. Trop. Dis.
Ozkan,O; Yagmur,EA; Ark,M.
Currently, medically significant scorpion species belong to the Buthidae family and are represented by the genera Androctonus, Buthus, Mesobuthus, Hottentotta, Parabuthus, Tityus, Centruroides, Leiurus. Although Leiurus was originally considered a monotypic genus, four additional species have since been described. Leiurus abdullahbayrami (previously identified as L. quinquestriatus in Turkey) was classified as a new Leiurus species. This is the first report conducted on the lethality and biologic effects of L. abdullahbayrami scorpion venom in mice. In this study, the electrophoretic protein pattern of its venom was also determined. Two protein bands with molecular masses of 4 and 6 kDa were more strongly detected than other protein bands in the venom...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; Leiurus spp.; Scorpion venom; Lethality; In vivo effects.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992011000400008
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Clinical and biochemical manifestation produced by scorpion (Hemiscorpius lepturus) venom in experimental animals J. Venom. Anim. Toxins incl. Trop. Dis.
Mirakabbadi A.,Zare; Zolfagharian,H.; Hedayat,A.; Jalali,A..
Several studies have been published about the clinical and biochemical manifestations produced by the venom of scorpions of the Buthidae family, but very few reports have indicated the manifestations induced by the venom of the Scorpionidae family. Hemiscorpius lepturus is an important scorpion species present in the south and southwestern part of Iran, causing morbidity and mortality in children and adults. For the present study, H. lepturus venom was extracted by electric shock and subcutaneously injected (6.3mg/kg) into a group of six rabbits. Blood collection was carried out before and three hours after venom injection for determination of osmotic fragility and levels of blood sugar, alanine aminotransferase (ALT), aspartate aminotransferase (AST),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hemiscorpius lepturus; Scorpions; Osmotic fragility; Iran; Biochemical changes.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992007000400007
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Dangerous scorpion fauna of Mali J. Venom. Anim. Toxins incl. Trop. Dis.
Goyffon,M; Dabo,A; Coulibaly,SK; Togo,G; Chippaux,JP.
Although the main Malian scorpion species of medical interest, Androctonus amoreuxi, is responsible for severe envenomings and perhaps some deaths, it has hitherto been considered not dangerous for humans. This population is located in the Saharian North-Eastern regions of Mali where it is accompanied by Leiurus quinquestriatus, a well known dangerous species of the Sahara. In the Gao district, divided by the Niger River, less desolate than the Tessalit and Kidal regions, one specimen of the dangerous species Androctonus australis was found. To summarize, Mali harbors at least three dangerous scorpion species: Leiurus quinquestriatus, Androctonus amoreuxi and A. australis, the latter recently having been identified in Mali for the first time. The absence...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; Mali; Dangerous species; Androctonus sp; Antivenom.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000400003
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Description of three more new species of the genus Ananteris Anais da ABC (AABC)
LOURENCO,WILSON R.; GIUPPONI,ALESSANDRO P.L.; LEGUIN,ELISE-ANNE.
Three new species of the genus Ananteris Thorell have been discovered in Brazil. Ananteris desiderio sp. n., Ananteris camacan sp. n. and Ananteris infuscata sp. n. are respectively described from specimens collected in the regions of São Desidério, Camacã, Rebio UNA and Jequié in the state of Bahia, and Grão Mogol and Novo Horizonte in the state of Minas Gerais, Brazil. New records are also proposed for Ananteris luciae Lourenço, Ananteris mauryi Lourenço and Ananteris franckei Lourenço. The number of known Ananteris species known in the scorpion fauna of Brazil is now raised to 24.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Neotropical fauna; Taxonomy; Scorpions; Bahia; Minas Gerais.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200709
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Effects of Androctonus crassicauda (Olivier, 1807) (Scorpiones: Buthidae) venom on rat metabolism J. Venom. Anim. Toxins incl. Trop. Dis.
Ozkan,O.; Bakir,F.; Adiguzel,S..
Scorpions are venomous arthropods of the Arachnida class and are considered relatives of spiders, ticks and mites. There is not any study about the biochemical effects of Androctonus crassicauda (Olivier, 1807) venom. Therefore, in the present study, we aimed at evaluating the toxicity of the venom from A. crassicauda, which is responsible for a number of deaths of infants, children and adults in tropical and subtropical countries. For this purpose, rats (n=35) were divided into seven groups of five animals each; venom solutions (250µg/kg) were subcutaneously injected into rats; blood samples were taken from each animal at various times; and serum biochemical parameters were measured (levels of total proteins, total bilirubin, albumin, globulin, urea,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; Androctonus crassicauda; Venom; Rats; Biochemical parameters.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000100004
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Embryotoxicity following repetitive maternal exposure to scorpion venom J. Venom. Anim. Toxins incl. Trop. Dis.
Hmed,BN; Riadh,B; Serria,H; Kamel,J; Khaled,Z.
Although it is a frequent accident in a few countries, scorpion envenomation during pregnancy remains scarcely studied. In the present study, the effects of repetitive maternal exposure to Buthus occitanus tunetanus venom are investigated and its possible embryotoxic consequences on rats. Primigravid rats received a daily intraperitoneal dose of 1 mL/kg of saline solution or 300 µg/kg of crude scorpion venom, from the 7th to the 13th day of gestation. On the 21st day, the animals were deeply anesthetized using diethyl-ether. Then, blood was collected for chemical parameter analysis. Following euthanasia, morphometric measurements were carried out. The results showed a significant increase in maternal heart and lung absolute weights following venom...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Prenatal repetitive exposure; Scorpions; Venom; Rats.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000300009
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Epidemiological survey of scorpion envenomation in southwestern Morocco J. Venom. Anim. Toxins
TOULOUN,O.; SLIMANI,T.; BOUMEZZOUGH,A..
The high frequency and severity of scorpion envenomation in Morocco is a serious public health problem, especially in semi arid and arid areas with a large rural population. In view of this alarming situation, we have conducted this investigation on scorpion envenomation in the Haouz and Souss plains between 1994 and 1998. Preliminary results have shown a high rate of scorpion envenomation with several deaths. With the exception of Scorpio maurus, the suspected species are generally anthropophilous, which belong to the Androctonus genera of the Buthidae family. The Buthidae family is responsible for 96.93% of the envenomings. In the southwestern Morocco, the death rate is of about 3.84%. The Androctonus mauretanicus is responsible for 60% of deaths. We...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; Scorpion envenomation; Epidemiology; Prevention; Southwestern Morocco; Haouz; Souss.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79302001000200006
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Epidemiology of envenomations by terrestrial venomous animals in Brazil based on case reporting: from obvious facts to contingencies J. Venom. Anim. Toxins incl. Trop. Dis.
Chippaux,Jean-Philippe.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Envenomation; Snakes; Scorpions; Spiders; Caterpillars; Africanized bees; Brazil; Epidemiology.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992015000100319
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Experimental Tityus serrulatus scorpion envenomation: age- and sex-related differences in symptoms and mortality in mice J. Venom. Anim. Toxins incl. Trop. Dis.
MB,Pucca; EC,Roncolato; LB,Campos; FS,Fernandes; GR,Mendes; TB,Bertolini; FA,Cerni; JE,Barbosa.
Among the various methods for evaluating animal venom toxicity, the calculation of the median lethal dose (LD50) is the most widely used. Although different protocols can be used to calculate the LD50, the source of the venom and the method of extraction, as well as the strain, age, and sex of the animal model employed, should be taken into consideration. The objective of the present study was to evaluate the influence of sex and age on the toxicity of Tityus serrulatus scorpion venom in Swiss mice. Although the symptoms of envenomation were similar in male and female animals, female mice proved to be more resistant to the venom. In females, age had no impact on the susceptibility to scorpion envenomation. Male mice were more sensitive to T. serrulatus...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; LD50; Stings; Age factors; Gender.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992011000300013
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Frequency of spermatophore production and regeneration in the males of Tityus (Atreus) magnimanus Pocock, 1897 (Scorpiones, Buthidae) J. Venom. Anim. Toxins incl. Trop. Dis.
Ross,LK.
The frequency of spermatophore production and the amount of time between matings for laboratory-reared males of Tityus (Atreus) magnimanus to regenerate spermatophores were examined. Males attain sexual maturity at the fifth or sixth instar (after a period of 137 to 155 days) and can produce initial spermatophores shortly after maturation. After mating, males can regenerate spermatophores within a single 24-hour period and remate. The present contribution represents the first report on an aspect of reproductive biology in this species and is part of a continuing study of the life history and post-embryonic development of Tityus (Atreus) magnimanus.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; Buthidae; Tityus (Atreus) magnimanus; Courtship; Mating; Spermatophores; Sperm transfer.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000100014
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In vivo and in vitro effects of scorpion venoms in Turkey: a mini-review J. Venom. Anim. Toxins incl. Trop. Dis.
Adiguzel,S.
Scorpion stings constitute a common type of accident in Turkey due to the geographic location, climate and socioeconomic structure of this country. Moreover, envenomation cases are considered a public health problem throughout Turkey. Based on data in the literature, the main clinical features of scorpion envenomations are defined as systemic manifestations including sweating, hypertension and vomiting, and among prominent causes of death are cardiorespiratory manifestations, toxic myocarditis and pulmonary edema. The most important health-threatening scorpions found in Turkey are: Androctonus crassicauda, Leiurus quinquestriatus, Mesobuthus gibbosus and Mesobuthus eupeus, all of which belong to the Buthidae family. This study indicates that there is no...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; Venom; Envenomation; In vivo and in vitro effects; Turkey.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000200004
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Maintenance of scorpions of the genus Tityus Koch (Scorpiones, Buthidae) for venom obtention at Instituto Butantan, São Paulo, Brazil J. Venom. Anim. Toxins incl. Trop. Dis.
Candido,D. M.; Lucas,S..
This work presents the experience of the Laboratory of Arthropods at Instituto Butantan, which maintains scorpions in captivity in order to obtain the venom used in the production of anti-arachnid serum. Between 1993 and 2000, the laboratory received 24.781 specimens of Tityus serrulatus in order to obtain poison for the production of anti-scorpion serum. In the first extraction, performed by electrical stimulation, the animals gave an average quantity of 0.4 mg venom per specimen. Animal acquisition and involved professional safety are considered. In addition, the captivity, handling and feeding techniques are described, as well as the method and equipment used for venom extraction. It shows the importance of regular campaigns, offering information to the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; Tityus; Maintenance; Venom.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992004000100007
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Notes and observations on courtship and mating in Tityus (Atreus) magnimanus Pocock, 1897 (Scorpiones: Buthidae) J. Venom. Anim. Toxins incl. Trop. Dis.
Ross,LK.
Courtship and mating behaviors of the scorpion Tityus (Atreus) magnimanus are herein described, consisting of various components that pertain to four distinct behavioral stages. The courtship and mating rituals of Tityus (Atreus) magnimanus are similar to those of other scorpions. Behavioral components are presented in an ethogram to demonstrate their occurrence during mating sequences. The current report is presented as observational data that were acquired during life history studies of this species.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; Buthidae; Tityus (Atreus) magnimanus; Courtship; Mating; Promenade á deux; Sperm transfer.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000100005
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Notes on gestation periods and litter size in the arenicolous buthid scorpion Leiurus quinquestriatus (Ehrenberg, 1828) (Scorpiones: Buthidae) J. Venom. Anim. Toxins incl. Trop. Dis.
Ross,LK.
The following notes on gestation periods and litter size in seven specimens of Leiurus quinquestriatus are presented as observational data. Specimens of Leiurus quinquestriatus from southern Egypt and southern Israel were mated in the laboratory during 2007; afterwards, gestation periods and litter sizes of all females were recorded. Previous studies on this species reported that the gestation period ranged from 150 to 155 days and that litter size was between 12 and 99 offspring. In the present study, gestation periods in specimens from both geographic regions varied from 155 to 227 days and litter sizes were between 35 and 87 offspring. The current contribution expands on previously published data on gestation periods and supports previously reported...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; Buthidae; Leiurus quinquestriatus; Gestation period; Litter size.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000200015
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Parthenogenesis in scorpions: some history - new data J. Venom. Anim. Toxins incl. Trop. Dis.
Lourenço,W. R..
Parthenogenesis, a rare phenomenon in Chelicerates, apart from mites, is reviewed in scorpions, notably Tityus serrulatus Lutz & Mello from Brazil, Tityus columbianus (Thorell) from Colombia and Tityus metuendus Pocock from Peru and Brazil. Thelytokous parthenogenesis (with all-female broods) is most often observed. The only known exception to this is T. metuendus in which arrhenotoky (all-male broods) has been observed. In the present paper, current ideas regarding parthenogenesis in scorpions are summarized. The notion of geographic parthenogenesis ('parthénogenèse géographique'), coined by Vandel in 1928, is discussed. This rule is tentatively exemplified by a new case of parthenogenesis reported in a scorpion of the genus Tityus C. L. Koch,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; Geographic parthenogenesis; Review; Thelytoky; Arrhenotoky; Deutherotoky.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000100003
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Scorpion fauna of the island of Fernando de Noronha, Brazil: first record of Tityus stigmurus (Thorell 1877) (Arachnida, Buthidae) Biota Neotropica
Freitas,Gilson Carlos Conceição; Vasconcelos,Simão Dias.
A survey of the scorpion fauna of the Island of Fernando de Noronha, Pernambuco (Brazil), was carried out in October 2005. Methods included active collecting and pitfall traps in several areas of the island under different degrees of human-caused alteration. Forty four scorpions, belonging to two species were collected: Isometrus maculatus (DeGeer, 1778), previously listed for the Island, and Tityus stigmurus (Thorell, 1877), here recorded for the first time. This species was probably introduced via cargo shipments from the continent and offers risk to the local population due to the gravity of the accidents.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Faunistics; Chelicerata; Scorpions.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000200019
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Scorpion sting: a public health problem in El Kelaa des Sraghna (Morocco) J. Venom. Anim. Toxins incl. Trop. Dis.
El Oufir,R.; Semlali,I.; Idrissi,M.; Soulaymani,A.; Benlarabi,S.; Khattabi,A.; Ait Moh,M.; Soulaymani Bencheikh,R..
The present study aimed at verifying the impact of a Moroccan strategy against scorpion stings and specifically at identifying the epidemiological features of patients envenomed or just stung by scorpions. It included 11,907 patients from El Kelaa des Sraghna Province, Morocco, who were evaluated over five years (2001-2005). Most stings occurred during the hot period and mainly at night. The average incidence was 3.2 per 1,000 inhabitants; patients <15 years accounted for 34%, and the envenomation rate was 12%. Average lethality rate was 0.7%. Our work evaluated the efficacy of the adopted strategy based on indicators of follow-up, morbidity and lethality due to scorpion sting and envenomation.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Epidemiology; Scorpions; Strategy; Indicators; El Kelaa; Morocco.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000200005
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Scorpion stings in one province of Morocco: epidemiological, clinical and prognosis aspects J. Venom. Anim. Toxins incl. Trop. Dis.
Soulaymani Bencheikh,R.; Idrissi,M.; Tamim,O.; Semlali,I.; Mokhtari,A.; Tayebi,M.; Soulaymani,A..
The present study aimed at verifying the impact of a Moroccan strategy against scorpion stings and, specifically, at identifying the epidemiological features of the patients envenomed or just stung by scorpions. The investigation included 4089 patients from a province of Morocco which were evaluated over three years (2001, 2002 and 2003). Most stings occurred during the hot period and mainly at night (between 6:00 p.m. and 12:00 p.m.). The average incidence was 2.8‰, the average age of the patients was 26.7±18.2 years, and the envenomation rate was 6.7%. Mortality rate was 0.05‰, and average lethality rate was 0.7%. Analysis of variance showed that young age, symptoms at admission, and long time elapsed between sting and admission were correlated with poor...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Epidemiology; Scorpions; Strategy; Morocco.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992007000200005
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Scorpionism in Central America, with special reference to the case of Panama J. Venom. Anim. Toxins incl. Trop. Dis.
Borges,A; Miranda,RJ; Pascale,JM.
Scorpionism in the Americas occurs mainly in Mexico, northern South America and southeast Brazil. This article reviews the local scorpion fauna, available health statistics, and the literature to assess scorpionism in Central America. Notwithstanding its high toxicity in Mexico, most scorpion sting cases in Guatemala, Belize, El Salvador, Nicaragua, and Costa Rica are produced by species in the genus Centruroides that are only mildly toxic to humans despite the existence of ion channel-active toxins in their venoms. Regional morbidity is low with the exception of Panama, where an incidence of 52 cases per 100,000 inhabitants was recorded for 2007, with 28 deaths from 1998 to 2006. Taxa belonging to the genus Tityus (also present in the Atlantic coast of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpionism; Central America; Tityus; Centruroides; Scorpions.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000200002
Registros recuperados: 23
Primeira ... 12 ... Última
 

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