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[PMID]:29187161
[Au] Autor:Wu YQ; Qu YF; Wang XJ; Gao JF; Ji X
[Ad] Endereço:Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, 210023, China.
[Ti] Título:Does the oviparity-viviparity transition alter the partitioning of yolk in embryonic snakes?
[So] Source:BMC Evol Biol;17(1):235, 2017 Nov 29.
[Is] ISSN:1471-2148
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The oviparity-viviparity transition is a major evolutionary event, likely altering the reproductive process of the organisms involved. Residual yolk, a portion of yolk remaining unutilized at hatching or birth as parental investment in care, has been investigated in many oviparous amniotes but remained largely unknown in viviparous species. Here, we used data from 20 (12 oviparous and 8 viviparous) species of snakes to see if the oviparity-viviparity transition alters the partitioning of yolk in embryonic snakes. We used ANCOVA to test whether offspring size, mass and components at hatching or birth differed between the sexes in each species. We used both ordinary least squares and phylogenetic generalized least squares regressions to test whether relationships between selected pairs of offspring components were significant. We used phylogenetic ANOVA to test whether offspring components differed between oviparous and viviparous species and, more specifically, the hypothesis that viviparous snakes invest more in the yolk as parental investment in embryogenesis to produce more well developed offspring that are larger in linear size. RESULTS: In none of the 20 species was sex a significant source of variation in any offspring component examined. Newborn viviparous snakes on average contained proportionally more water and, after accounting for body dry mass, had larger carcasses but smaller residual yolks than did newly hatched oviparous snakes. The rates at which carcass dry mass (CDM) and fat body dry mass (FDM) increased with residual yolk dry mass (YDM) did not differ between newborn oviparous and viviparous snakes. Neither CDM nor FDM differed between newborn oviparous and viviparous snakes after accounting for YDM. CONCLUSIONS: Our results are not consistent with the hypothesis that the partitioning of yolk between embryonic and post-embryonic stages differs between snakes that differ in parity mode, but instead show that the partitioning of yolk in embryonic snakes is species-specific or phylogenetically related. We conclude that the oviparity-viviparity transition does not alter yolk partitioning in embryonic snakes.
[Mh] Termos MeSH primário: Gema de Ovo/fisiologia
Embrião não Mamífero/fisiologia
Oviparidade/fisiologia
Serpentes/embriologia
Viviparidade não Mamífera/fisiologia
[Mh] Termos MeSH secundário: Animais
Animais Recém-Nascidos
Feminino
Filogenia
Análise de Regressão
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171201
[St] Status:MEDLINE
[do] DOI:10.1186/s12862-017-1083-z


  2 / 6053 MEDLINE  
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[PMID]:28919506
[Au] Autor:Gonçalves DV; Martínez-Freiría F; Crochet PA; Geniez P; Carranza S; Brito JC
[Ad] Endereço:CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal; Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua Campo Alegre, 4169-007 Porto, Portugal; Institute of Evolutionary Biolog
[Ti] Título:The role of climatic cycles and trans-Saharan migration corridors in species diversification: Biogeography of Psammophis schokari group in North Africa.
[So] Source:Mol Phylogenet Evol;118:64-74, 2018 Jan.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Highlands, hydrographic systems and coastal areas have been hypothesised to form corridors across the hyperarid Sahara desert in North Africa, allowing dispersal and gene flow for non-xeric species. Here we aim to provide a genetic test for the trans-Saharan corridor model, and predict the location and stability of ecological-corridors, by combining phylogeography and palaeoclimatic modelling. The model was the Psammophis schokari (Schokari sand racer) group, fast-moving and widely distributed generalist colubrids occurring mostly in arid and semiarid scrublands. We combined dated phylogenies of mitochondrial and nuclear markers with palaeoclimatic modelling. For the phylogeographic analysis, we used 75 samples of P. schokari and P. aegyptius, and Bayesian and Maximum-Likelihood methods. For the ecological models, we used Maxent over the distribution of P. schokari and West African lineages. Models were projected to past conditions (mid Holocene, Last Glacial Maximum and Last Inter-Glacial) to infer climatic stable areas. Climatic stability was predicted to be mostly restricted to coastal areas and not spatially continuous. A putative temporary trans-Saharan corridor was identified in Eastern Sahara, with a more stable one along the Atlantic coast. Six parapatric lineages were identified within P. schokari, four occurring in North Africa. These likely diverged during the Pliocene. The Tamanraset River might have been a vicariant agent. African lineages may have experienced further subsequent diversification during the late Pleistocene. The main P. schokari refugia were probably located along the northern margins of the Sahara, allowing its North-to-South colonization. Trans-Saharan corridors seem to have played a role in P. schokari biogeography, allowing colonization of central Saharan mountains and Sahel. Some might have worked as refugia, and even the most stable corridors may have sections working as filters, depending on each climatic phase. We expect the use of trans-Saharan corridors to decrease for more mesic species or with less dispersal capabilities.
[Mh] Termos MeSH primário: Serpentes/classificação
[Mh] Termos MeSH secundário: África do Norte
Migração Animal
Animais
Teorema de Bayes
Clima
Citocromos b/química
Citocromos b/genética
DNA Mitocondrial/química
DNA Mitocondrial/isolamento & purificação
DNA Mitocondrial/metabolismo
Variação Genética
Funções Verossimilhança
NADH Desidrogenase/química
NADH Desidrogenase/genética
Filogenia
Filogeografia
Análise de Sequência de DNA
Serpentes/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Mitochondrial); 9035-37-4 (Cytochromes b); EC 1.6.99.3 (NADH Dehydrogenase)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170919
[St] Status:MEDLINE


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[PMID]:29371624
[Au] Autor:Da Silva FO; Fabre AC; Savriama Y; Ollonen J; Mahlow K; Herrel A; Müller J; Di-Poï N
[Ad] Endereço:Program in Developmental Biology, Institute of Biotechnology, University of Helsinki, 00014, Helsinki, Finland.
[Ti] Título:The ecological origins of snakes as revealed by skull evolution.
[So] Source:Nat Commun;9(1):376, 2018 01 25.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The ecological origin of snakes remains amongst the most controversial topics in evolution, with three competing hypotheses: fossorial; marine; or terrestrial. Here we use a geometric morphometric approach integrating ecological, phylogenetic, paleontological, and developmental data for building models of skull shape and size evolution and developmental rate changes in squamates. Our large-scale data reveal that whereas the most recent common ancestor of crown snakes had a small skull with a shape undeniably adapted for fossoriality, all snakes plus their sister group derive from a surface-terrestrial form with non-fossorial behavior, thus redirecting the debate toward an underexplored evolutionary scenario. Our comprehensive heterochrony analyses further indicate that snakes later evolved novel craniofacial specializations through global acceleration of skull development. These results highlight the importance of the interplay between natural selection and developmental processes in snake origin and diversification, leading first to invasion of a new habitat and then to subsequent ecological radiations.
[Mh] Termos MeSH primário: Evolução Biológica
Filogenia
Crânio/anatomia & histologia
Serpentes/anatomia & histologia
[Mh] Termos MeSH secundário: Animais
Biodiversidade
Ecologia
Ecossistema
Fósseis
Tamanho do Órgão
Paleontologia
Filogeografia
Crânio/fisiologia
Serpentes/classificação
Serpentes/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180127
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02788-3


  4 / 6053 MEDLINE  
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[PMID]:28470824
[Au] Autor:Lillywhite HB; Lillywhite SM
[Ad] Endereço:Department of Biology, University of Florida, Gainesville, Florida, 32611-8525.
[Ti] Título:Ontogenetic shifts of heart position in snakes.
[So] Source:J Morphol;278(8):1105-1113, 2017 Aug.
[Is] ISSN:1097-4687
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Heart position relative to total body length (TL) varies among snakes, with anterior hearts in arboreal species and more centrally located hearts in aquatic or ground-dwelling species. Anterior hearts decrease the cardiac work associated with cranial blood flow and minimize drops in cranial pressure and flow during head-up climbing. Here, we investigate whether heart position shifts intraspecifically during ontogenetic increases in TL. Insular Florida cottonmouth snakes, Agkistrodon conanti, are entirely ground-dwelling and have a mean heart position that is 33.32% TL from the head. In contrast, arboreal rat snakes, Pantherophis obsoleta, of similar lengths have a mean heart position that is 17.35% TL from the head. In both species, relative heart position shifts craniad during ontogeny, with negative slopes = -.035 and -.021% TL/cm TL in Agkistrodon and Pantherophis, respectively. Using a large morphometric data set available for Agkistrodon (N = 192 individuals, 23-140 cm TL), we demonstrate there is an anterior ontogenetic shift of the heart position within the trunk (= 4.56% trunk length from base of head to cloacal vent), independent of head and tail allometry which are both negative. However, in longer snakes > 100 cm, the heart position reverses and shifts caudally in longer Agkistrodon but continues toward the head in longer individuals of Pantherophis. Examination of data sets for two independent lineages of fully marine snakes (Acrochordus granulatus and Hydrophis platurus), which do not naturally experience postural gravity stress, demonstrate both ontogenetic patterns for heart position that are seen in the terrestrial snakes. The anterior migration of the heart is greater in the terrestrial species, even if TL is standardized to that of the longer P. obsoleta, and compensates for about 5 mmHg gravitational pressure head if they are fully upright.
[Mh] Termos MeSH primário: Coração/anatomia & histologia
Coração/fisiologia
Serpentes/anatomia & histologia
Serpentes/fisiologia
[Mh] Termos MeSH secundário: Animais
Organismos Aquáticos/fisiologia
Análise de Regressão
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171128
[Lr] Data última revisão:
171128
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170505
[St] Status:MEDLINE
[do] DOI:10.1002/jmor.20697


  5 / 6053 MEDLINE  
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[PMID]:29045429
[Au] Autor:Harrison RA; Oluoch GO; Ainsworth S; Alsolaiss J; Bolton F; Arias AS; Gutiérrez JM; Rowley P; Kalya S; Ozwara H; Casewell NR
[Ad] Endereço:The Alistair Reid Venom Research Unit, Parasitology Department, Liverpool School of Tropical Medicine, Liverpool, Merseyside, United Kingdom.
[Ti] Título:Preclinical antivenom-efficacy testing reveals potentially disturbing deficiencies of snakebite treatment capability in East Africa.
[So] Source:PLoS Negl Trop Dis;11(10):e0005969, 2017 Oct.
[Is] ISSN:1935-2735
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Antivenom is the treatment of choice for snakebite, which annually kills an estimated 32,000 people in sub-Saharan Africa and leaves approximately 100,000 survivors with permanent physical disabilities that exert a considerable socioeconomic burden. Over the past two decades, the high costs of the most polyspecifically-effective antivenoms have sequentially reduced demand, commercial manufacturing incentives and production volumes that have combined to create a continent-wide vacuum of effective snakebite therapy. This was quickly filled with new, less expensive antivenoms, many of which are of untested efficacy. Some of these successfully marketed antivenoms for Africa are inappropriately manufactured with venoms from non-African snakes and are dangerously ineffective. The uncertain efficacy of available antivenoms exacerbates the complexity of designing intervention measures to reduce the burden of snakebite in sub-Saharan Africa. The objective of this study was to preclinically determine the ability of antivenoms available in Kenya to neutralise the lethal effects of venoms from the most medically important snakes in East Africa. METHODS: We collected venom samples from the most medically important snakes in East Africa and determined their toxicity in a mouse model. Using a 'gold standard' comparison protocol, we preclinically tested the comparative venom-neutralising efficacy of four antivenoms available in Kenya with two antivenoms of clinically-proven efficacy. To explain the variant efficacies of these antivenoms we tested the IgG-venom binding characteristics of each antivenom using in vitro IgG titre, avidity and venom-protein specificity assays. We also measured the IgG concentration of each antivenom. FINDINGS: None of the six antivenoms are preclinically effective, at the doses tested, against all of the most medically important snakes of the region. The very limited snake polyspecific efficacy of two locally available antivenoms is of concern. In vitro assays of the abilities of 'test' antivenom IgGs to bind venom proteins were not substantially different from that of the 'gold standard' antivenoms. The least effective antivenoms had the lowest IgG content/vial. CONCLUSIONS: Manufacture-stated preclinical efficacy statements guide decision making by physicians and antivenom purchasers in sub-Saharan Africa. This is because of the lack of both clinical data on the efficacy of most of the many antivenoms used to treat patients and independent preclinical assessment. Our preclinical efficacy assessment of antivenoms available in Kenya identifies important limitations for two of the most commonly-used antivenoms, and that no antivenom is preclinically effective against all the regionally important snakes. The potential implication to snakebite treatment is of serious concern in Kenya and elsewhere in sub-Saharan Africa, and underscores the dilemma physicians face, the need for clinical data on antivenom efficacy and the medical and societal value of establishing independent preclinical antivenom-efficacy testing facilities throughout the continent.
[Mh] Termos MeSH primário: Antivenenos/imunologia
Antivenenos/uso terapêutico
Mordeduras de Serpentes/terapia
Venenos de Serpentes/antagonistas & inibidores
[Mh] Termos MeSH secundário: África Oriental
Animais
Antivenenos/química
Antivenenos/metabolismo
Avaliação Pré-Clínica de Medicamentos
Seres Humanos
Imunoglobulina G/análise
Imunoglobulina G/metabolismo
Quênia
Dose Letal Mediana
Camundongos
Ligação Proteica
Venenos de Serpentes/química
Venenos de Serpentes/imunologia
Venenos de Serpentes/toxicidade
Serpentes
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antivenins); 0 (Immunoglobulin G); 0 (Snake Venoms)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171031
[Lr] Data última revisão:
171031
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171019
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pntd.0005969


  6 / 6053 MEDLINE  
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[PMID]:28817630
[Au] Autor:Fonseca É; Solé M; Rödder D; de Marco P
[Ad] Endereço:Departamento de Biologia, Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.
[Ti] Título:Pet snakes illegally marketed in Brazil: Climatic viability and establishment risk.
[So] Source:PLoS One;12(8):e0183143, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Invasive species are one among many threats to biodiversity. Brazil has been spared, generically, of several destructive invasive species. Reports of invasive snakes' populations are nonexistent, but the illegal pet trade might change this scenario. Despite the Brazilian laws forbid to import most animals, illegal trade is frequently observed and propagules are found in the wild. The high species richness within Brazilian biomes and accelerated fragmentation of natural reserves are a critical factors facilitating successful invasion. An efficient way to ease damages caused by invasive species is identifying potential invaders and consequent prevention of introductions. For the identification of potential invaders many factors need to be considered, including estimates of climate matching between areas (native vs. invaded). Ecological niche modelling has been widely used to predict potential areas for invasion and is an important tool for conservation biology. This study evaluates the potential geographical distribution and establishment risk of Lampropeltis getula (Linnaeus, 1766), Lampropeltis triangulum (Lacépède, 1789), Pantherophis guttatus (Linnaeus, 1766), Python bivittatus Kuhl, 1820 and Python regius (Shaw, 1802) through the Maximum Entropy modelling approach to estimate the potential distribution of the species within Brazil and qualitative evaluation of specific biological attributes. Our results suggest that the North and Midwest regions harbor major suitable areas. Furthermore, P. bivittatus and P. guttatus were suggested to have the highest invasive potential among the analyzed species. Potentially suitable areas for these species were predicted within areas which are highly relevant for Brazilian biodiversity, including several conservation units. Therefore, these areas require special attention and preventive measures should be adopted.
[Mh] Termos MeSH primário: Clima
Serpentes
[Mh] Termos MeSH secundário: Animais
Brasil
Espécies Introduzidas
Risco
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171017
[Lr] Data última revisão:
171017
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170818
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0183143


  7 / 6053 MEDLINE  
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[PMID]:28817588
[Au] Autor:Murray-Dickson G; Ghazali M; Ogden R; Brown R; Auliya M
[Ad] Endereço:Royal Zoological Society of Scotland (RZSS) WildGenes Laboratory, Edinburgh, United Kingdom.
[Ti] Título:Phylogeography of the reticulated python (Malayopython reticulatus ssp.): Conservation implications for the worlds' most traded snake species.
[So] Source:PLoS One;12(8):e0182049, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:As an important economic natural resource in Southeast Asia, reticulated pythons (Malayopython reticulatus ssp.) are primarily harvested from the wild for their skins-which are prized in the luxury leather goods industry. Trade dynamics of this CITES Appendix II listed species are complex and management approaches on the country or regional level appear obscure. Little is known about the actual geographic point-of-harvest of snakes, how genetic diversity is partitioned across the species range, how current harvest levels may affect the genetic viability of populations, and whether genetic structure could (or should) be accounted for when managing harvest quotas. As an initial survey, we use mitochondrial sequence data to define the broad-scale geographic structure of genetic diversity across a significant portion of the reticulated python's native range. Preliminary results reveal: (1) prominent phylogenetic structure across populations east and west of Huxley's modification of Wallace's line. Thirty-four haplotypes were apportioned across two geographically distinct groups, estimated to be moderately (5.2%); (2) Philippine, Bornean and Sulawesian populations appear to cluster distinctly; (3) individuals from Ambon Island suggest recent human introduction. Malayopython reticulatus is currently managed as a single taxonomic unit across Southeast Asia yet these initial results may justify special management considerations of the Philippine populations as a phylogenetically distinct unit, that warrants further examination. In Indonesia, genetic structure does not conform tightly to political boundaries and therefore we advocate the precautionary designation and use of Evolutionary Significant Units within Malayopython reticulatus, to inform and guide regional adaptive management plans.
[Mh] Termos MeSH primário: Filogenia
Filogeografia
Serpentes/classificação
Serpentes/genética
[Mh] Termos MeSH secundário: Animais
Ásia Sudeste
Conservação dos Recursos Naturais
DNA Mitocondrial/genética
Genética Populacional
Geografia
Haplótipos
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Mitochondrial)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171018
[Lr] Data última revisão:
171018
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170818
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0182049


  8 / 6053 MEDLINE  
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[PMID]:28764620
[Au] Autor:Johnston CI; Ryan NM; Page CB; Buckley NA; Brown SG; O'Leary MA; Isbister GK
[Ad] Endereço:NSW Poisons Information Centre, Sydney Children's Hospitals Network, Sydney, NSW geoff.isbister@gmail.com.
[Ti] Título:The Australian Snakebite Project, 2005-2015 (ASP-20).
[So] Source:Med J Aust;207(3):119-125, 2017 Aug 07.
[Is] ISSN:1326-5377
[Cp] País de publicação:Australia
[La] Idioma:eng
[Ab] Resumo: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. RESULTS: 1548 patients with suspected snakebites were enrolled, including 835 envenomed patients (median, 87 per year), for 718 of which the snake type was definitively established, most frequently brown snakes (41%), tiger snakes (17%) and red-bellied black snakes (16%). Clinical effects included venom-induced consumption coagulopathy (73%), myotoxicity (17%), and acute kidney injury (12%); severe complications included cardiac arrest (25 cases; 2.9%) and major haemorrhage (13 cases; 1.6%). There were 23 deaths (median, two per year), attributed to brown (17), tiger (four) and unknown (two) snakes; ten followed out-of-hospital cardiac arrests and six followed intracranial haemorrhages. Of 597 SVDK test results for envenomed patients with confirmed snake type, 29 (4.9%) were incorrect; 133 of 364 SVDK test results for non-envenomed patients (36%) were false positives. 755 patients received antivenom, including 49 non-envenomed patients; 178 (24%), including ten non-envenomed patients, had systemic hypersensitivity reactions, of which 45 (6%) were severe (hypotension, hypoxaemia). Median total antivenom dose declined from four vials to one, but median time to first antivenom was unchanged (4.3 hours; IQR, 2.7-6.3 hours). CONCLUSIONS: Snake envenoming is uncommon in Australia, but is often severe. SVDKs were unreliable for determining snake type. The median antivenom dose has declined without harming patients. Improved early diagnostic strategies are needed to reduce the frequently long delays before antivenom administration.
[Mh] Termos MeSH primário: Antivenenos/administração & dosagem
Mordeduras de Serpentes/epidemiologia
Mordeduras de Serpentes/terapia
Serpentes/classificação
[Mh] Termos MeSH secundário: Lesão Renal Aguda/epidemiologia
Adolescente
Adulto
Idoso
Idoso de 80 Anos ou mais
Animais
Antivenenos/efeitos adversos
Austrália/epidemiologia
Criança
Pré-Escolar
Coagulação Intravascular Disseminada/epidemiologia
Feminino
Hemorragia/epidemiologia
Seres Humanos
Hipersensibilidade/epidemiologia
Lactente
Masculino
Meia-Idade
Parada Cardíaca Extra-Hospitalar/epidemiologia
Estudos Prospectivos
Mordeduras de Serpentes/mortalidade
Venenos de Serpentes
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; MULTICENTER STUDY; OBSERVATIONAL STUDY
[Nm] Nome de substância:
0 (Antivenins); 0 (Snake Venoms)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170807
[Lr] Data última revisão:
170807
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170803
[St] Status:MEDLINE


  9 / 6053 MEDLINE  
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[PMID]:28610123
[Au] Autor:Pinto RR; Fernandes R
[Ad] Endereço:Centro Acadêmico de Vitória, Universidade Federal de Pernambuco, Vitória de Santo Antão, PE 55608-680, Brazil Departamento de Vertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 20940-040, Brazil Present address: Universidade Católica de Pernambuco, Recife, Pernambuco 50050-900, Brazil. robertarich@gmail.com.
[Ti] Título:Morphological variation of Trilepida macrolepis (Peters 1857), with reappraisal of the taxonomic status of Rena affinis (Boulenger 1884) (Serpentes: Leptotyphlopidae: Epictinae).
[So] Source:Zootaxa;4244(2):246-260, 2017 Mar 19.
[Is] ISSN:1175-5334
[Cp] País de publicação:New Zealand
[La] Idioma:eng
[Ab] Resumo:We report on the morphological variation (meristic, morphometric, pholidosis, and color pattern characters) and sexual dimorphism of Trilepida macrolepis. We also took the opportunity to redescribe the holotype of Rena affinis in an effort to evaluate its taxonomic status. Based on the congruence of characters from external morphology, we transfer Stenostoma affine to the genus Trilepida. We also discuss the Andean specimens previously refereed to Trilepida affinis and Trilepida macrolepis and provide an identification key for the genus Trilepida.
[Mh] Termos MeSH primário: Serpentes
[Mh] Termos MeSH secundário: Animais
Cor
Caracteres Sexuais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170809
[Lr] Data última revisão:
170809
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170615
[St] Status:MEDLINE
[do] DOI:10.11646/zootaxa.4244.2.6


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[PMID]:28609885
[Au] Autor:Wickramasinghe LJM; Vidanapathirana DR; Rajeev MDG; Gower DJ
[Ad] Endereço:Herpetological Foundation of Sri Lanka, 31/5 Alwis Town, Hendala, Wattala, Sri Lanka. mendis.w@ime.edu.lk.
[Ti] Título:A new species of Rhinophis Hemprich, 1820 (Serpentes: Uropeltidae) from the central hills of Sri Lanka.
[So] Source:Zootaxa;4263(1):153-164, 2017 05 08.
[Is] ISSN:1175-5334
[Cp] País de publicação:New Zealand
[La] Idioma:eng
[Ab] Resumo:A new species of uropeltid snake, Rhinophis roshanpererai sp. nov., is described based on three specimens from Badulla District, Sri Lanka. The new species is distinguished from its congeners by the number of dorsal scale rows and ventral scales, a colour pattern that lacks pale stripes, and by having a very small tail shield with four or three prominent spines. Based on lack of records from similar habitats and elevations elsewhere in Sri Lanka, the new species likely has a very small range in the central highlands. The description of the new species brings the total nominal species of Rhinophis to 20, with four of the 16 Sri Lankan species having been described since 2009.
[Mh] Termos MeSH primário: Serpentes
[Mh] Termos MeSH secundário: Animais
Ecossistema
Sri Lanka
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170810
[Lr] Data última revisão:
170810
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170615
[St] Status:MEDLINE
[do] DOI:10.11646/zootaxa.4263.1.7



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