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[PMID]:29387946
[Au] Autor:Sánchez-González B; Planillo A; Navarro-Castilla Á; Barja I
[Ad] Endereço:Department of Biology, Zoology Unit, Universidad Autónoma de Madrid, Madrid, Spain.
[Ti] Título:The concentration of fear: mice's behavioural and physiological stress responses to different degrees of predation risk.
[So] Source:Naturwissenschaften;105(1-2):16, 2018 Jan 31.
[Is] ISSN:1432-1904
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Predation is an unavoidable and dangerous fact in the lifetime of prey animals and some sign of the proximity of a predator may be enough to trigger a response in the prey. We investigated whether different degrees of predation risk by red foxes (Vulpes vulpes) evoke behavioural and physiological stress responses in wood mice (Apodemus sylvaticus). We examined the variation in mice responses due to individual factors (sex and reproductive status) and related them to the concentration of the volatile compounds from fox faeces over time. In our experiment, we introduced predation cues into four plots, each subjected to a different concentration treatment (0, 10, 50 and 100% concentration of fresh faeces of red fox), based on the following outline: initial odourless phase 0, phase1 in which predation treatment was renewed daily, and phase 2 in which we renewed the treatment only on the first day. Wood mice were live trapped during all three phases and the physiological response was measured non-invasively by analysing faecal corticosterone metabolites (FCM) in freshly collected faeces. Data were analysed by Generalized Linear Mixed Models. Overall, males were trapped less often than females, and reproductively active individuals from both sexes avoided traps more than non-reproductively active individuals, especially in medium- and high- concentration plots. Variations in FCM concentrations were explained by plot, the interaction between plot and treatment phase, and the interaction between the treatment phase and the reproductive status. During phase 1, we detected a significant rise in FCM levels that increased with predator faecal odour concentration. Additionally, reproductively active individuals showed a strong physiological response during both phases 1 and 2 in all plots, except the control plot. Our results indicated that wood mice are able to discriminate different degrees of predation risk, which allows them to trigger gradual changes in their behavioural and physiological stress responses.
[Mh] Termos MeSH primário: Medo/fisiologia
Murinae/fisiologia
Estresse Fisiológico/fisiologia
[Mh] Termos MeSH secundário: Corticosteroides/análise
Animais
Comportamento Animal
Fezes/química
Feminino
Cadeia Alimentar
Raposas/fisiologia
Masculino
Murinae/psicologia
Odorantes
Reprodução
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Adrenal Cortex Hormones)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180302
[Lr] Data última revisão:
180302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180202
[St] Status:MEDLINE
[do] DOI:10.1007/s00114-018-1540-6


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[PMID]:28963084
[Au] Autor:Bryja J; Kostin D; Meheretu Y; Sumbera R; Bryjová A; Kasso M; Mikula O; Lavrenchenko LA
[Ad] Endereço:Institute of Vertebrate Biology of the Czech Academy of Sciences, Brno, Czech Republic; Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic. Electronic address: bryja@brno.cas.cz.
[Ti] Título:Reticulate Pleistocene evolution of Ethiopian rodent genus along remarkable altitudinal gradient.
[So] Source:Mol Phylogenet Evol;118:75-87, 2018 Jan.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The Ethiopian highlands are the most extensive complex of mountainous habitats in Africa. The presence of the Great Rift Valley (GRV) and the striking elevational ecological gradients inhabited by recently radiated Ethiopian endemics, provide a wide spectrum of model situations for evolutionary studies. The extant species of endemic rodents, often markedly phenotypically differentiated, are expected to possess complex genetic features which evolved asa consequence of the interplay between geomorphology and past climatic changes. In this study, we used the largest available multi-locus genetic dataset of the murid genus Stenocephalemys (347 specimens from ca 40 localities across the known distributional area of all taxa) to investigate the relative importance of disruptive selection, temporary geographic isolation and introgression in their adaptive radiations in the Pleistocene. We confirmed the four main highly supported mitochondrial (mtDNA) clades that were proposed as four species in a previous pilot study: S. albipes is a sister species of S. griseicauda (both lineages are present on both sides of the GRV), while the second clade is formed by two Afro-alpine species, S. albocaudata (east of GRV) and the undescribed Stenocephalemys sp. A (west of GRV). There is a clear elevational gradient in the distribution of the Stenocephalemys taxa with two to three species present at different elevations of the same mountain range. Surprisingly, the nuclear species tree corresponded only a little to the mtDNA tree. Multispecies coalescent models based on six nuclear markers revealed the presence of six separate gene pools (i.e. candidate species), with different topology. Phylogenetic analysis, together with the geographic distribution of the genetic groups, suggests a complex reticulate evolution. We propose a scenario that involves (besides classical allopatric speciation) two cases of disruptive selection along the elevational ecological gradient, multiple crosses of GRV in dry and cold periods of the Pleistocene, followed by hybridization and mtDNA introgression on imperfect reproductive barriers. Spatial expansion of the currently most widespread "albipes" mtDNA clade was followed by population fragmentation, lineage sorting and again by hybridization and mtDNA introgression. Comparison of this genetic structure to other Ethiopian endemic taxa highlight the geographical areas of special conservation concern, where more detailed biodiversity studies should be carried out to prevent many endemic taxa from going extinct even before they are recognized.
[Mh] Termos MeSH primário: Evolução Molecular
Murinae/classificação
[Mh] Termos MeSH secundário: Animais
Citocromos b/química
Citocromos b/classificação
Citocromos b/genética
DNA Mitocondrial/química
DNA Mitocondrial/isolamento & purificação
DNA Mitocondrial/metabolismo
Ecossistema
Etiópia
Haplótipos
Hibridização Genética
Cariótipo
Murinae/anatomia & histologia
Murinae/genética
Filogenia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Mitochondrial); 9035-37-4 (Cytochromes b)
[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:171001
[St] Status:MEDLINE


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[PMID]:28748835
[Au] Autor:Agbonlahor DE; Erah A; Agba IM; Oviasogie FE; Ehiaghe AF; Wankasi M; Eremwanarue OA; Ehiaghe IJ; Ogbu EC; Iyen RI; Abbey S; Tatfeng MY; Uhunmwangho J
[Ad] Endereço:Lahor Research Laboratories and Medical Centre, Benin City, Edo State; Department of Medical Laboratory Science, College of Health Sciences, Niger Delta University, Amassoma, Bayelsa State, Nigeria.
[Ti] Título:Prevalence of Lassa virus among rodents trapped in three South-South States of Nigeria.
[So] Source:J Vector Borne Dis;54(2):146-150, 2017 Apr-Jun.
[Is] ISSN:0972-9062
[Cp] País de publicação:India
[La] Idioma:eng
[Ab] Resumo:BACKGROUND & OBJECTIVES: Lassa fever has been endemic in Nigeria since 1969. The rodent Mastomys natalensis has been widely claimed to be the reservoir host of the Lassa virus. This study was designed to investigate the dis- tribution of species of rodents in three states (Edo, Delta and Bayelsa) of Nigeria and to determine the prevalence of Lassa virus amongst trapped rodents in the selected states. METHODS: Rodents were trapped during November 2015 to October 2016 from the three states in South-South re- gion of Nigeria. Total RNA was extracted from the blood collected from the trapped rodents. Reverse transcription polymerase chain reaction (RT-PCR) was used to confirm the presence of Lassa virus in the rodents. RESULTS: The results revealed that six species of rodents were predominantly present in these geographical locations. Mus musculus (39.4%) had the highest prevalence, closely followed by Rattus rattus (36.1%), R. fuscipus (20.3%), M. natalensis (2%), Myosoricinae soricidae (1.2%) and R. norvegicus (1%). The overall positivity (carrier rate) of Lassa virus was 1.6% amongst the 1500 rodents caught in the three states. In Edo and Delta States, the RT-PCR results showed presence of Lassa virus in R. rattus, M. musculus and M. natalensis. On the other hand, only M. na- talensis was detected with the virus, amongst the species of rodents caught in Bayelsa State. M. natalensis recorded the highest Lassa virus among rodents trapped in Edo (87%), Delta (50%) and Bayelsa (11%) States respectively. INTERPRETATION & CONCLUSION: The rather low Lassa virus positive among rodents in Bayelsa State of Nigeria may explain the absence of reports of outbreak of Lassa fever over the past 48 yr in the state. The results also confirmed that apart from Mastomys natalensis, other rodents such as Rattus rattus and Mus musculus may also serve as res- ervoirs for Lassa virus. From the findings of this cross-sectional study, it was concluded that a more comprehensive study on rodents as reservoir host, need to be undertaken across the entire states of Nigeria, for better understanding of the epidemiology and endemicity of Lassa fever.
[Mh] Termos MeSH primário: Febre Lassa/veterinária
Vírus Lassa/isolamento & purificação
Doenças dos Roedores/epidemiologia
Doenças dos Roedores/virologia
[Mh] Termos MeSH secundário: Animais
Estudos Transversais
Febre Lassa/epidemiologia
Camundongos
Murinae
Nigéria/epidemiologia
Prevalência
RNA Viral/análise
RNA Viral/genética
Ratos
Reação em Cadeia da Polimerase Via Transcriptase Reversa
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (RNA, Viral)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180129
[Lr] Data última revisão:
180129
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170728
[St] Status:MEDLINE


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[PMID]:28449693
[Au] Autor:Mariën J; Borremans B; Gryseels S; Soropogui B; De Bruyn L; Bongo GN; Becker-Ziaja B; de Bellocq JG; Günther S; Magassouba N; Leirs H; Fichet-Calvet E
[Ad] Endereço:Evolutionary Ecology Group, University of Antwerp, Antwerp, Belgium. Joachim.marien@uantwerpen.be.
[Ti] Título:No measurable adverse effects of Lassa, Morogoro and Gairo arenaviruses on their rodent reservoir host in natural conditions.
[So] Source:Parasit Vectors;10(1):210, 2017 Apr 27.
[Is] ISSN:1756-3305
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: In order to optimize net transmission success, parasites are hypothesized to evolve towards causing minimal damage to their reservoir host while obtaining high shedding rates. For many parasite species however this paradigm has not been tested, and conflicting results have been found regarding the effect of arenaviruses on their rodent host species. The rodent Mastomys natalensis is the natural reservoir host of several arenaviruses, including Lassa virus that is known to cause Lassa haemorrhagic fever in humans. Here, we examined the effect of three arenaviruses (Gairo, Morogoro and Lassa virus) on four parameters of wild-caught Mastomys natalensis: body mass, head-body length, sexual maturity and fertility. After correcting for the effect of age, we compared these parameters between arenavirus-positive (arenavirus RNA or antibody) and negative animals using data from different field studies in Guinea (Lassa virus) and Tanzania (Morogoro and Gairo viruses). RESULTS: Although the sample sizes of our studies (1297, 749 and 259 animals respectively) were large enough to statistically detect small differences in body conditions, we did not observe any adverse effects of these viruses on Mastomys natalensis. We did find that sexual maturity was significantly positively related with Lassa virus antibody presence until a certain age, and with Gairo virus antibody presence in general. Gairo virus antibody-positive animals were also significantly heavier and larger than antibody-free animals. CONCLUSION: Together, these results suggest that the pathogenicity of arenaviruses is not severe in M. natalensis, which is likely to be an adaptation of these viruses to optimize transmission success. They also suggest that sexual behaviour might increase the probability of M. natalensis to become infected with arenaviruses.
[Mh] Termos MeSH primário: Infecções por Arenaviridae/veterinária
Arenavirus/isolamento & purificação
Portador Sadio/veterinária
Vetores de Doenças
Murinae/fisiologia
Murinae/virologia
[Mh] Termos MeSH secundário: Animais
Infecções por Arenaviridae/patologia
Infecções por Arenaviridae/virologia
Portador Sadio/patologia
Portador Sadio/virologia
Guiné
Tanzânia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180109
[Lr] Data última revisão:
180109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE
[do] DOI:10.1186/s13071-017-2146-0


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[PMID]:28759564
[Au] Autor:Liu MM; Farkas M; Spinnhirny P; Pevet P; Pierce E; Hicks D; Zack DJ
[Ad] Endereço:Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America.
[Ti] Título:De novo assembly and annotation of the retinal transcriptome for the Nile grass rat (Arvicanthis ansorgei).
[So] Source:PLoS One;12(7):e0179061, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Cone photoreceptors are required for color vision and high acuity vision, and they die in a variety of retinal degenerations, leading to irreversible vision loss and reduced quality of life. To date, there are no approved therapies that promote the health and survival of cones. The development of novel treatments targeting cones has been challenging and impeded, in part, by the limitations inherent in using common rodent model organisms, which are nocturnal and rod-dominant, to study cone biology. The African Nile grass rat (Arvicanthis ansorgei), a diurnal animal whose photoreceptor population is more than 30% cones, offers significant potential as a model organism for the study of cone development, biology, and degeneration. However, a significant limitation in using the A. ansorgei retina for molecular studies is that A. ansorgei does not have a sequenced genome or transcriptome. Here we present the first de novo assembled and functionally annotated transcriptome for A. ansorgei. We performed RNA sequencing for A. ansorgei whole retina to a depth of 321 million pairs of reads and assembled 400,584 Trinity transcripts. Transcriptome-wide analyses and annotations suggest that our data set confers nearly full length coverage for the majority of retinal transcripts. Our high quality annotated transcriptome is publicly available, and we hope it will facilitate wider usage of A. ansorgei as a model organism for molecular studies of cone biology and retinal degeneration.
[Mh] Termos MeSH primário: Murinae/fisiologia
Retina/fisiologia
Células Fotorreceptoras Retinianas Cones/fisiologia
Transcriptoma
[Mh] Termos MeSH secundário: Animais
DNA Complementar/metabolismo
Feminino
Biblioteca Gênica
Fases de Leitura Aberta
Filogenia
Retina/fisiopatologia
Degeneração Retiniana/genética
Degeneração Retiniana/fisiopatologia
Opsinas de Bastonetes/genética
Análise de Sequência de DNA
Análise de Sequência de RNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Complementary); 0 (Rod Opsins)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171110
[Lr] Data última revisão:
171110
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170801
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0179061


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[PMID]:28535864
[Au] Autor:Simonek GD; Alarcio GG; Brignolo LL
[Ad] Endereço:School of Veterinary Medicine, University of California, Davis, California;, Email: gdsimonek@ucdavis.edu.
[Ti] Título:Sterility and Stability of Diluted Carprofen in a Multidose Vial in the Laboratory Animal Setting.
[So] Source:J Am Assoc Lab Anim Sci;56(3):296-298, 2017 May 01.
[Is] ISSN:1559-6109
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Using compounded multidose vials (cMDV) is a common practice in the laboratory animal setting, where medications often are diluted to provide appropriate doses to rodents. However, bacterial contamination of MDV has been well established in both the human and veterinary medical literature. For this study, we created 14 cMDV by diluting carprofen into sterile water (dilution, 1:10) and stored 6 cMDV each at 5 and 24 °C. The stoppers of the cMDV were not cleaned with alcohol, and all were punctured twice daily for 28 d. The sterility of the diluted carprofen was evaluated by assessing bacterial growth on days 0, 7, 14, 21, and 28 and by testing for bacterial endotoxin on days 0 and 28. We used liquid chromatography-tandem mass spectrometry to assess the stability of 2 cMDV, with each cMDV being divided into the 2 storage-temperature subsets for days 0, 7, 14, 21, and 28. Neither bacterial contamination nor endotoxin was detected, and drug stability was stable over the 28 d. We suggest that with pragmatic techniques, such as secondary containment and consistent use of new needles, the contents of cMDV can remain sterile and stable for 28 d.
[Mh] Termos MeSH primário: Carbazóis/química
Composição de Medicamentos/veterinária
Contaminação de Medicamentos/prevenção & controle
[Mh] Termos MeSH secundário: Criação de Animais Domésticos
Animais
Animais de Laboratório
Composição de Medicamentos/economia
Composição de Medicamentos/métodos
Estabilidade de Medicamentos
Armazenamento de Medicamentos
Murinae
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Carbazoles); FFL0D546HO (carprofen)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:171101
[Lr] Data última revisão:
171101
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170525
[St] Status:MEDLINE


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[PMID]:28525654
[Au] Autor:Rahman MM; Yoon KB; Lim SJ; Jeon MG; Kim HJ; Kim HY; Cho JY; Chae HM; Park YC
[Ad] Endereço:Division of Forest Science, Kangwon National University, Chuncheon, Republic of Korea.
[Ti] Título:Molecular detection by analysis of the 16S rRNA gene of fecal coliform bacteria from the two Korean Apodemus species (Apodemus agrarius and A. peninsulae).
[So] Source:Genet Mol Res;16(2), 2017 May 18.
[Is] ISSN:1676-5680
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:Wild mouse feces can disseminate zoonotic microorganisms throughout a farm, which is a great threat to human health and can lead to economic loss through contaminated agricultural produce. To assess the microbial communities, especially fecal coliform bacteria, we used two methods. First, we isolated bacterial colonies onto the common media LB (lactose broth) agar, TSA (tryptic soy agar), and MRS (de Man, Rogosa, and Sharpe) agar, and then randomly select colonies from each plate and stocked them to the mother plate for genomic DNA isolation. Second, we analyzed bacterial colonies using the 16S rRNA gene molecular diagnostic method. Based on bacterial cultures and bacterial 16S rRNA gene markers, we detected four different bacterial species (Bacillus amyloliquefaciens, Escherichia coli, Staphylococcus xylosus, and Serratia liquefaciens) from fecal coliforms of the striped field mouse Apodemus agrarius and A. peninsulae in agricultural areas in South Korea. These results could help us to better understand the pathogen reservoirs of mice and initiate some preventive measures to mitigate the microbial risks associated with mouse fecal matter in agricultural production areas.
[Mh] Termos MeSH primário: Microbiota
Murinae/microbiologia
[Mh] Termos MeSH secundário: Animais
Bacillus amyloliquefaciens/genética
Bacillus amyloliquefaciens/isolamento & purificação
Escherichia coli/genética
Escherichia coli/isolamento & purificação
Fezes/microbiologia
RNA Ribossômico 16S/genética
República da Coreia
Serratia liquefaciens/genética
Serratia liquefaciens/isolamento & purificação
Staphylococcus/genética
Staphylococcus/isolamento & purificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (RNA, Ribosomal, 16S)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170928
[Lr] Data última revisão:
170928
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170520
[St] Status:MEDLINE
[do] DOI:10.4238/gmr16029510


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[PMID]:28413175
[Au] Autor:Koyabu D
[Ad] Endereço:The University Museum, The University of Tokyo, 7-3-1 Hongo, Tokyo 113-0033, Japan.
[Ti] Título:Prenatal postcranial development in two species of sympatric Japanese wood mice (Apodemus argenteus and A. speciosus): a comparison of arboreal versus terrestrial congeners.
[So] Source:J Vet Med Sci;79(5):952-956, 2017 May 23.
[Is] ISSN:1347-7439
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:Habitats of two closely related Japanese field mice, Apodemus argenteus and A. speciosus, broadly overlap in many Japanese forests. A. argenteus being more arboreal and A. speciosus being more terrestrial, it is thought that such ecological segregation allows their sympatric distribution. Comparing these two congeners, whether ecological difference is reflected in postcranial development was examined. Although overall ossification sequences were virtually identical, development of the caudal vertebrae was remarkably earlier in A. argenteus. One of the clearest morphological differences between the two species is the relative length of the tail, which is arguably related to the degree of arboreality. I suggest that accelerated ossification of the caudal vertebrae found in A. argenteus is related to its elongation of the tail.
[Mh] Termos MeSH primário: Murinae/embriologia
[Mh] Termos MeSH secundário: Animais
Osso e Ossos/embriologia
Ecossistema
Osteogênese/fisiologia
Coluna Vertebral/embriologia
Cauda/embriologia
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[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:170418
[St] Status:MEDLINE
[do] DOI:10.1292/jvms.17-0130


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[PMID]:28399378
[Au] Autor:Izdebska JN; Rolbiecki L; Fryderyk S; Mierzynski L
[Ad] Endereço:Department of Invertebrate Zoology and Parasitology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland.
[Ti] Título:Adult and Immature Stages of the New Species of the Genus Demodex (Acariformes: Demodecidae) with Data on Parasitism, Topography, and Topical Specificity of Demodecid Mites in the Yellow-Necked Mouse, Apodemus flavicollis (Rodentia: Muridae).
[So] Source:J Parasitol;103(4):320-329, 2017 Aug.
[Is] ISSN:1937-2345
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Demodex mollis n. sp. is described from the yellow-necked mouse, Apodemus flavicollis (Melchior, 1834), from Poland. It is a medium-sized demodecid mite (adult stages are, on average, 249 µm long) observed in the skin of the eyelid area. This new species is most similar to two other species occupying similar a microhabitat in hosts of the same genus-Demodex lacrimalis Lukoschus and Jongman, 1974 from Apodemus sylvaticus Linnaeus, 1758 and Demodex huttereri Mertens, Lukoschus and Nutting, 1983 from Apodemus agrarius (Pallas, 1771)-but it differs in the following features: the terminal palpi are equipped with 3 spines, including 1 large claw-like spine and 1 single spine; subgnathosomal setae (setae n) are situated on both sides of the anterior side of the pharyngeal bulb; claws on the leg tarsi are bifurcated and each is equipped with large subterminal spur and proximal pointed projection; the opisthosoma is soft and flexible; and the male aedeagus has a different shape and localization. The differences also relate to sexual dimorphism. Males are more robust and stocky, epimeral plates I and IV are connected at the midline part of the podosoma, and epimeral plates II and III are separated. Females are slender, epimeral plates I-III are connected at the midline of the podosoma, and epimeral plate IV ia fused in 1 plate. The new species was noted in 22.5% of mice, with a mean intensity of 7.0 parasites per host. The topography of demodecid mites was also analyzed in the skin of A. flavicollis, and also Demodex corniculatus Izdebska, 2012 was observed in the hairy skin of the bodies of all the examined mice.
[Mh] Termos MeSH primário: Infestações por Ácaros/veterinária
Ácaros/classificação
Murinae/parasitologia
Doenças dos Roedores/parasitologia
[Mh] Termos MeSH secundário: Animais
Feminino
Larva/anatomia & histologia
Masculino
Infestações por Ácaros/epidemiologia
Infestações por Ácaros/parasitologia
Ácaros/anatomia & histologia
Ácaros/fisiologia
Ninfa/anatomia & histologia
Óvulo/ultraestrutura
Polônia/epidemiologia
Doenças dos Roedores/epidemiologia
Caracteres Sexuais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170818
[Lr] Data última revisão:
170818
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170412
[St] Status:MEDLINE
[do] DOI:10.1645/17-31


  10 / 863 MEDLINE  
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[PMID]:28399204
[Au] Autor:Huang Y; Zhao L; Zhang Z; Liu M; Xue Z; Ma D; Sun X; Sun Y; Zhou C; Qin X; Zhu Y; Li W; Yu H; Yu XJ
[Ad] Endereço:School of Public Health, Shandong University, Jinan, Shandong Province 250012, China (875397037@qq.com; dlzhl@sdu.edu.cn; miao1206@126.com; xifengs@163.com; sunyue1018@163.com; zcmsdu@163.com; 490161337@qq.com; 772321342@qq.com; 15953166632@163.com; xuyu@utmb.edu).
[Ti] Título:Detection of a Novel Rickettsia From Leptotrombidium scutellare Mites (Acari: Trombiculidae) From Shandong of China.
[So] Source:J Med Entomol;54(3):544-549, 2017 May 01.
[Is] ISSN:1938-2928
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Leptotrombidium scutellare mites, the vector of Orientia tsutsugamushi, have rarely been reported to associate with Rickettsia species. Three hundred nineteen chiggers were collected from the ears of 32 rodents captured in Huangdao District of Qingdao City, China, in October 2015. The chigger samples were tested for Rickettsia, severe fever with thrombocytopenia syndrome virus, and hantavirus by PCR or RT-PCR amplification. All mites were classified morphologically and molecularly as L. scutellare chiggers. Rickettsial DNA sequences were amplified for four genes including 16S rRNA, ompB, gltA, and 17 kD protein genes. The minimum infection rate (MIR; number of positive pools/total specimens tested) of the Rickettsia species in the chiggers were 2.8% (9/319). Phylogenetic analysis indicated that individual genes were closely related to different Rickettsia species including R. felis (with 16S rRNA gene), R. australis (with gltA gene), an unnamed Rickettsia sp. TwKM02 (with ompB gene), and Rickettsia endosymbiont of soft tick Ornithodoros erraticus (with 17 kD protein gene). Phylogenic analysis of the concatenated sequence of 16S rRNA, gltA, ompB, and 17 kD protein genes indicated that the Rickettsia species from L. scutellare chigger was most closely related to R. australis and R. akari. These results indicated that the Rickettsia species in chiggers was unique; it was named Candidatus Rickettsia leptotrombidium. Severe fever with thrombocytopenia syndrome virus and hantavirus were not amplified from the chiggers, suggesting lack of infection of these pathogens in the chiggers. A unique Rickettsia species was detected in L. scutellare, which expanded the knowledge on the vector distribution of Rickettsia.
[Mh] Termos MeSH primário: Infecções por Rickettsia/veterinária
Rickettsia/classificação
Doenças dos Roedores/epidemiologia
Roedores
Musaranhos
Trombiculidae/microbiologia
[Mh] Termos MeSH secundário: Animais
Proteínas de Bactérias/genética
China/epidemiologia
Infestações por Ácaros/epidemiologia
Infestações por Ácaros/parasitologia
Infestações por Ácaros/veterinária
Murinae
Filogenia
Prevalência
RNA Bacteriano/genética
Rickettsia/genética
Rickettsia/isolamento & purificação
Infecções por Rickettsia/epidemiologia
Infecções por Rickettsia/microbiologia
Doenças dos Roedores/microbiologia
Análise de Sequência de DNA/veterinária
Trombiculidae/virologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bacterial Proteins); 0 (RNA, Bacterial)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170915
[Lr] Data última revisão:
170915
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170412
[St] Status:MEDLINE
[do] DOI:10.1093/jme/tjw234



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