Base de dados : MEDLINE
Pesquisa : B01.050.150.900.248.620.750.250.150 [Categoria DeCS]
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  1 / 537 MEDLINE  
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[PMID]:29403051
[Au] Autor:Koch RE; Kavazis AN; Hasselquist D; Hood WR; Zhang Y; Toomey MB; Hill GE
[Ad] Endereço:Department of Biological Sciences, Auburn University, 331 Funchess Hall, Auburn, AL, 36849, USA. rebecca.adrian@monash.edu.
[Ti] Título:No evidence that carotenoid pigments boost either immune or antioxidant defenses in a songbird.
[So] Source:Nat Commun;9(1):491, 2018 02 05.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Dietary carotenoids have been proposed to boost immune system and antioxidant functions in vertebrate animals, but studies aimed at testing these physiological functions of carotenoids have often failed to find support. Here we subject yellow canaries (Serinus canaria), which possess high levels of carotenoids in their tissue, and white recessive canaries, which possess a knockdown mutation that results in very low levels of tissue carotenoids, to oxidative and pathogen challenges. Across diverse measures of physiological performance, we detect no differences between carotenoid-rich yellow and carotenoid-deficient white canaries. These results add further challenge to the assumption that carotenoids are directly involved in supporting physiological function in vertebrate animals. While some dietary carotenoids provide indirect benefits as retinoid precursors, our observations suggest that carotenoids themselves may play little to no direct role in key physiological processes in birds.
[Mh] Termos MeSH primário: Antioxidantes/metabolismo
Canários/imunologia
Carotenoides/metabolismo
Regulação da Expressão Gênica/imunologia
Imunidade Inata/efeitos dos fármacos
[Mh] Termos MeSH secundário: Animais
Canários/genética
Lipopolissacarídeos/metabolismo
Mutação
Pigmentação/genética
Pigmentação/imunologia
Pigmentos Biológicos
Receptores Depuradores Classe B/genética
Receptores Depuradores Classe B/metabolismo
Toxoide Tetânico/imunologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Antioxidants); 0 (Lipopolysaccharides); 0 (Pigments, Biological); 0 (Scavenger Receptors, Class B); 0 (Tetanus Toxoid); 36-88-4 (Carotenoids)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180207
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-018-02974-x


  2 / 537 MEDLINE  
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[PMID]:28937855
[Au] Autor:Hargitai R; Boross N; Hámori S; Neuberger E; Nyiri Z
[Ti] Título:Eggshell Biliverdin and Protoporphyrin Pigments in a Songbird: Are They Derived from Erythrocytes, Blood Plasma, or the Shell Gland?
[So] Source:Physiol Biochem Zool;90(6):613-626, 2017 Nov/Dec.
[Is] ISSN:1537-5293
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Biliverdin and protoporphyrin pigments are deposited into the eggshell when the developing egg is in the shell gland. However, the site of synthesis of eggshell pigments is still uncertain, although it may influence the possible costs and potential functions of eggshell coloration in avian species. Eggshell pigments may be derived from red blood cells or be produced in other organs and then transferred to the shell gland, or they may be synthesized de novo in the shell gland. We studied in the canary (Serinus canaria) whether eggshell blue-green and brown pigmentations are associated with experimentally elevated anemia, female hematocrit level, immature erythrocyte percentage, and feces and plasma pigment levels during egg laying to find out the possible origin of eggshell pigments. We found no significant effects of hematocrit level or experimentally elevated anemia on intensity of eggshell blue-green and brown pigmentations; therefore, we consider it less likely that eggshell pigments are derived from erythrocytes. In addition, we found no significant associations between female feces biliverdin concentration during egg laying and intensity of eggshell blue-green pigmentation, suggesting that eggshell biliverdin may not originate from the spleen or liver. We found a negative association between plasma and feces protoporphyrin concentrations during egg laying and eggshell brown chroma. This result suggests that an increased production of protoporphyrin in the liver, which could have elevated plasma and feces protoporphyrin concentrations, could inhibit eggshell protoporphyrin pigmentation, probably through affecting enzymatic activities. We suggest that both pigments are produced de novo in the shell gland in the canary, but circulating pigment levels may influence shell gland pigment synthesis, thus connecting the physiological status of the female to eggshell coloration.
[Mh] Termos MeSH primário: Biliverdina/metabolismo
Canários/metabolismo
Protoporfirinas/metabolismo
[Mh] Termos MeSH secundário: Animais
Canários/sangue
Casca de Ovo/química
Eritrócitos/química
Eritrócitos/metabolismo
Glândulas Exócrinas/química
Glândulas Exócrinas/metabolismo
Hematócrito/veterinária
Plasma/química
Plasma/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Protoporphyrins); C2K325S808 (protoporphyrin IX); O9MIA842K9 (Biliverdine)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171002
[Lr] Data última revisão:
171002
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170923
[St] Status:MEDLINE
[do] DOI:10.1086/694297


  3 / 537 MEDLINE  
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[PMID]:28829769
[Au] Autor:Goldin MA; Mindlin GB
[Ad] Endereço:Dynamical Systems Laboratory, Physics Department and IFIBA Conicet, University of Buenos Aires, Pabellón 1, Ciudad Universitaria, Buenos Aires, Argentina.
[Ti] Título:Temperature manipulation of neuronal dynamics in a forebrain motor control nucleus.
[So] Source:PLoS Comput Biol;13(8):e1005699, 2017 Aug.
[Is] ISSN:1553-7358
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Different neuronal types within brain motor areas contribute to the generation of complex motor behaviors. A widely studied songbird forebrain nucleus (HVC) has been recognized as fundamental in shaping the precise timing characteristics of birdsong. This is based, among other evidence, on the stretching and the "breaking" of song structure when HVC is cooled. However, little is known about the temperature effects that take place in its neurons. To address this, we investigated the dynamics of HVC both experimentally and computationally. We developed a technique where simultaneous electrophysiological recordings were performed during temperature manipulation of HVC. We recorded spontaneous activity and found three effects: widening of the spike shape, decrease of the firing rate and change in the interspike interval distribution. All these effects could be explained with a detailed conductance based model of all the neurons present in HVC. Temperature dependence of the ionic channel time constants explained the first effect, while the second was based in the changes of the maximal conductance using single synaptic excitatory inputs. The last phenomenon, only emerged after introducing a more realistic synaptic input to the inhibitory interneurons. Two timescales were present in the interspike distributions. The behavior of one timescale was reproduced with different input balances received form the excitatory neurons, whereas the other, which disappears with cooling, could not be found assuming poissonian synaptic inputs. Furthermore, the computational model shows that the bursting of the excitatory neurons arises naturally at normal brain temperature and that they have an intrinsic delay at low temperatures. The same effect occurs at single synapses, which may explain song stretching. These findings shed light on the temperature dependence of neuronal dynamics and present a comprehensive framework to study neuronal connectivity. This study, which is based on intrinsic neuronal characteristics, may help to understand emergent behavioral changes.
[Mh] Termos MeSH primário: Potenciais de Ação/fisiologia
Modelos Neurológicos
Neurônios/fisiologia
Prosencéfalo/fisiologia
Vocalização Animal/fisiologia
[Mh] Termos MeSH secundário: Animais
Canários/fisiologia
Biologia Computacional
Simulação por Computador
Masculino
Neurônios/citologia
Prosencéfalo/citologia
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170910
[Lr] Data última revisão:
170910
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170823
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pcbi.1005699


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[PMID]:28821656
[Au] Autor:Alward BA; Balthazart J; Ball GF
[Ad] Endereço:Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, Maryland 21218, balward@stanford.edu.
[Ti] Título:Dissociable Effects on Birdsong of Androgen Signaling in Cortex-Like Brain Regions of Canaries.
[So] Source:J Neurosci;37(36):8612-8624, 2017 Sep 06.
[Is] ISSN:1529-2401
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The neural basis of how learned vocalizations change during development and in adulthood represents a major challenge facing cognitive neuroscience. This plasticity in the degree to which learned vocalizations can change in both humans and songbirds is linked to the actions of sex steroid hormones during ontogeny but also in adulthood in the context of seasonal changes in birdsong. We investigated the role of steroid hormone signaling in the brain on distinct features of birdsong using adult male canaries ( ), which show extensive seasonal vocal plasticity as adults. Specifically, we bilaterally implanted the potent androgen receptor antagonist flutamide in two key brain regions that control birdsong. We show that androgen signaling in the motor cortical-like brain region, the robust nucleus of the arcopallium (RA), controls syllable and trill bandwidth stereotypy, while not significantly affecting higher order features of song such syllable-type usage (i.e., how many times each syllable type is used) or syllable sequences. In contrast, androgen signaling in the premotor cortical-like brain region, HVC (proper name), controls song variability by increasing the variability of syllable-type usage and syllable sequences, while having no effect on syllable or trill bandwidth stereotypy. Other aspects of song, such as the duration of trills and the number of syllables per song, were also differentially affected by androgen signaling in HVC versus RA. These results implicate androgens in regulating distinct features of complex motor output in a precise and nonredundant manner. Vocal plasticity is linked to the actions of sex steroid hormones, but the precise mechanisms are unclear. We investigated this question in adult male canaries ( ), which show extensive vocal plasticity throughout their life. We show that androgens in two cortex-like vocal control brain regions regulate distinct aspects of vocal plasticity. For example, in HVC (proper name), androgens regulate variability in syntax but not phonology, whereas androgens in the robust nucleus of the arcopallium (RA) regulate variability in phonology but not syntax. Temporal aspects of song were also differentially affected by androgen signaling in HVC versus RA. Thus, androgen signaling may reduce vocal plasticity by acting in a nonredundant and precise manner in the brain.
[Mh] Termos MeSH primário: Androgênios/metabolismo
Canários/fisiologia
Córtex Cerebral/fisiologia
Rede Nervosa/fisiologia
Plasticidade Neuronal/fisiologia
Estações do Ano
Vocalização Animal/fisiologia
[Mh] Termos MeSH secundário: Animais
Masculino
Transdução de Sinais/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Androgens)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170925
[Lr] Data última revisão:
170925
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170820
[St] Status:MEDLINE
[do] DOI:10.1523/JNEUROSCI.3371-16.2017


  5 / 537 MEDLINE  
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[PMID]:28523489
[Au] Autor:Waap H; Paulino D; Cardoso R
[Ad] Endereço:Laboratório de Parasitologia, Instituto Nacional de Investigação Agrária e Veterinária, Av. da República, Quinta do Marquês, 2780-157, Oeiras, Portugal. helga.waap@iniav.pt.
[Ti] Título:Occurrence of Ornithonyssus sylviarum in pet birds from the district of Setúbal, Portugal.
[So] Source:Parasitol Res;116(7):2041-2046, 2017 Jul.
[Is] ISSN:1432-1955
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Ornithonyssus sylviarum is a blood-feeding ectoparasite of birds and the most serious pest in poultry farms in North America. Although the mites are typically adapted to temperate climates, information on this mite in Europe is sparse, and Dermanyssus gallinae is considered to be the only mite impacting the poultry industry. The present study reports the occurrence of O. sylviarum in pet birds in Portugal. Mites were collected directly from birds and with traps placed in cages and nests at 20 different sampling places belonging to 6 municipalities in the district of Setúbal. In a total of 217 birds, O. sylviarum was identified in 47 out of 147 (32.0%) canaries (Serinus canaria), 14 out of 21 (14.3%) estrildid finches, 1 out of 24 (4.2%) budgerigars (Melopsittacus undulatus) and 1 out of 15 (6.7%) lovebirds (Agapornis spp.). Mites of the genus Dermanyssus were identified in 8 canaries (5.4%), 8 estrildid finches (38.1%) and 1 lovebird (6.7%). No mites were found in 6 cockatiels (Nymphicus hollandicus), 2 African grey parrots (Psittacus erithacus), 1 Bourke's parrot (Neophema bourkii) and 1 rose-ringed parakeet (Psittacula krameri). Considering the zoonotic potential and the risk of dissemination to poultry, the present findings underline the need for further monitoring of O. sylviarum in the wild and domestic avifauna in Portugal.
[Mh] Termos MeSH primário: Aves/parasitologia
Infestações por Ácaros/veterinária
Ácaros
Animais de Estimação/parasitologia
[Mh] Termos MeSH secundário: Animais
Canários/parasitologia
Cacatuas/parasitologia
Europa (Continente)
Feminino
Ácaros/classificação
América do Norte
Portugal
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171101
[Lr] Data última revisão:
171101
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170520
[St] Status:MEDLINE
[do] DOI:10.1007/s00436-017-5486-y


  6 / 537 MEDLINE  
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[PMID]:28413077
[Au] Autor:Zadravec M; Slavec B; Krapez U; Gombac M; Svara T; Poljsak-Prijatelj M; Gruntar I; Racnik J
[Ad] Endereço:Veterinary Faculty, Institute of Poultry, Birds, Small Mammals and Reptiles, Gerbiceva 60, 1000 Ljubljana, Slovenia. Electronic address: marko.zadravec@vf.uni-lj.si.
[Ti] Título:Trichomonosis outbreak in a flock of canaries (Serinus canaria f. domestica) caused by a finch epidemic strain of Trichomonas gallinae.
[So] Source:Vet Parasitol;239:90-93, 2017 May 30.
[Is] ISSN:1873-2550
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:In the present paper, an outbreak of trichomonosis in a flock of 15 breeding pairs of canaries is described. Trichomonosis was diagnosed on characteristic clinical signs, microscopic examination of crop/esophageal swabs, gross pathology and histopathology. Trichomonads were successfully grown in culture media and were characterized by multi-locus sequence typing. The three genomic loci ITS1-5.8S-ITS2, 18S rRNA and Fe-hydrogenase were analyzed. Molecular characterization confirmed the finch trichomonosis strain, identical to the strain that caused emerging disease in free-living passerine birds in Europe. Flock treatment with metronidazole (200mg/L) in drinking water for 5days was partially effective. After individual treatment with oral application of metronidazole (20mg/kg SID) for 5days no further clinical signs were observed in the flock over next 30 months.
[Mh] Termos MeSH primário: Doenças das Aves/parasitologia
Canários/parasitologia
Surtos de Doenças/veterinária
Tricomoníase/veterinária
Trichomonas/classificação
[Mh] Termos MeSH secundário: Administração Oral
Animais
Antiprotozoários/administração & dosagem
Antiprotozoários/uso terapêutico
Doenças das Aves/tratamento farmacológico
DNA de Protozoário/genética
DNA Espaçador Ribossômico/genética
Metronidazol/administração & dosagem
Metronidazol/uso terapêutico
RNA de Protozoário/genética
RNA Ribossômico 18S/genética
Trichomonas/genética
Tricomoníase/tratamento farmacológico
Tricomoníase/parasitologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antiprotozoal Agents); 0 (DNA, Protozoan); 0 (DNA, Ribosomal Spacer); 0 (RNA, Protozoan); 0 (RNA, Ribosomal, 18S); 140QMO216E (Metronidazole)
[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:170418
[St] Status:MEDLINE


  7 / 537 MEDLINE  
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[PMID]:28291602
[Au] Autor:Yang R; Brice B; Oskam C; Zhang Y; Brigg F; Berryman D; Ryan U
[Ad] Endereço:School of Veterinary and Life Sciences, Murdoch University, Murdoch, Western Australia, 6150, Australia. Electronic address: ryang@murdoch.edu.au.
[Ti] Título:Characterization of two complete Isospora mitochondrial genomes from passerine birds: Isospora serinuse in a domestic canary and Isospora manorinae in a yellow-throated miner.
[So] Source:Vet Parasitol;237:137-142, 2017 Apr 15.
[Is] ISSN:1873-2550
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The genus term Isospora is now applied specifically to parasites of birds, with the term Cystoisospora preferred for parasites which infect mammals. Isospora is a common parasitic coccidian in birds worldwide, especially in passerine birds, in which it can cause systemic coccidiosis. The complete mitochondrial genome sequences from two recently identified Isospora species; Isospora serinuse in a domestic canary and Isospora manorinae in a yellow-throated miner, were sequenced and compared with those of other closely related coccidian species. The complete mitochondrial genome sequence for Isospora serinuse is 6260bp in size and 6223bp for Isospora manorinae. The mitochondrial genomes of Isospora serinuse and Isospora manorinae include three protein-coding genes (COI, COIII and CytB), 19 LSU and 14 SSU rDNA fragments, including one newly identified putative LSU fragment in Isospora sp. The arrangement of coding regions in these two Isospora species were identical to that of available Isospora sp. and Eimeria spp. mitochondrial genomes and the start codon usage for protein coding genes was conservative. Phylogenetic analysis of the mt genome of the two Isospora species based on the three coding regions further support that the monophyletic nature of avian Isospora.
[Mh] Termos MeSH primário: Canários/parasitologia
Coccidiose/veterinária
Genoma Mitocondrial/genética
Isospora/isolamento & purificação
[Mh] Termos MeSH secundário: Animais
Coccidiose/parasitologia
DNA de Protozoário/química
DNA de Protozoário/genética
DNA Ribossômico/química
DNA Ribossômico/genética
Isospora/genética
Passeriformes
Filogenia
Análise de Sequência de DNA/veterinária
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Protozoan); 0 (DNA, Ribosomal)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170926
[Lr] Data última revisão:
170926
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170315
[St] Status:MEDLINE


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[PMID]:28284244
[Au] Autor:Souza WM; Romeiro MF; Fumagalli MJ; Modha S; de Araujo J; Queiroz LH; Durigon EL; Figueiredo LT; Murcia PR; Gifford RJ
[Ad] Endereço:1​MRC-University of Glasgow Centre for Virus Research, Glasgow, UK 2​Virology Research Center, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
[Ti] Título:Chapparvoviruses occur in at least three vertebrate classes and have a broad biogeographic distribution.
[So] Source:J Gen Virol;98(2):225-229, 2017 Feb.
[Is] ISSN:1465-2099
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Chapparvoviruses are a highly divergent group of parvoviruses (family Parvoviridae) that have recently been identified via metagenomic sampling of animal faeces. Here, we report the sequences of six novel chapparvoviruses identified through both metagenomic sampling of bat tissues and in silico screening of published vertebrate genome assemblies. The novel chapparvoviruses share several distinctive genomic features and group together as a robustly supported monophyletic clade in phylogenetic trees. Our data indicate that chapparvoviruses have a broad host range in vertebrates and a global distribution.
[Mh] Termos MeSH primário: Parvovirinae/classificação
Parvovirinae/genética
Vertebrados/genética
Vertebrados/virologia
[Mh] Termos MeSH secundário: Animais
Canários/genética
Canários/virologia
Cebus/genética
Cebus/virologia
Quirópteros/genética
Quirópteros/virologia
Simulação por Computador
Evolução Molecular
Ordem dos Genes
Genoma Viral
Metagenômica
Filogenia
Filogeografia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1705
[Cu] Atualização por classe:171103
[Lr] Data última revisão:
171103
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170313
[St] Status:MEDLINE
[do] DOI:10.1099/jgv.0.000671


  9 / 537 MEDLINE  
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[PMID]:28141859
[Au] Autor:Shevchouk OT; Ball GF; Cornil CA; Balthazart J
[Ad] Endereço:GIGA Neurosciences, University of Liege, Liège, Belgium.
[Ti] Título:Studies of HVC Plasticity in Adult Canaries Reveal Social Effects and Sex Differences as Well as Limitations of Multiple Markers Available to Assess Adult Neurogenesis.
[So] Source:PLoS One;12(1):e0170938, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In songbirds, neurogenesis in the song control nucleus HVC is sensitive to the hormonal and social environment but the dynamics of this process is difficult to assess with a single exogenous marker of new neurons. We simultaneously used three independent markers to investigate HVC neurogenesis in male and female canaries. Males were castrated, implanted with testosterone and housed either alone (M), with a female (M-F) or with another male (M-M) while females were implanted with 17ß-estradiol and housed with a male (F-M). All subjects received injections of the two thymidine analogues, BrdU and of EdU, respectively 21 and 10 days before brain collection. Cells containing BrdU or EdU or expressing doublecortin (DCX), which labels newborn neurons, were quantified. Social context and sex differentially affected total BrdU+, EdU+, BrdU+EdU- and DCX+ populations. M-M males had a higher density of BrdU+ cells in the ventricular zone adjacent to HVC and of EdU+ in HVC than M-F males. M birds had a higher ratio of BrdU+EdU- to EdU+ cells than M-F subjects suggesting higher survival of newer neurons in the former group. Total number of HVC DCX+ cells was lower in M-F than in M-M males. Sex differences were also dependent of the type of marker used. Several technical limitations associated with the use of these multiple markers were also identified. These results indicate that proliferation, recruitment and survival of new neurons can be independently affected by environmental conditions and effects can only be fully discerned through the use of multiple neurogenesis markers.
[Mh] Termos MeSH primário: Envelhecimento/fisiologia
Biomarcadores/metabolismo
Encéfalo/fisiologia
Canários/fisiologia
Neurogênese
Plasticidade Neuronal/fisiologia
Caracteres Sexuais
Comportamento Social
[Mh] Termos MeSH secundário: Animais
Bromodesoxiuridina/metabolismo
Canários/sangue
Corticosterona/sangue
Desoxiuridina/análogos & derivados
Feminino
Modelos Lineares
Masculino
Proteínas Associadas aos Microtúbulos
Neurônios/metabolismo
Neuropeptídeos
Vocalização Animal/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biomarkers); 0 (Microtubule-Associated Proteins); 0 (Neuropeptides); 0 (doublecortin protein); 80384-36-7 (5-bromoethynyl-2'-deoxyuridine); G34N38R2N1 (Bromodeoxyuridine); W78I7AY22C (Deoxyuridine); W980KJ009P (Corticosterone)
[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:170201
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0170938


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[PMID]:28129381
[Au] Autor:Dos Santos MD; Kretschmer R; Frankl-Vilches C; Bakker A; Gahr M; O Brien PC; Ferguson-Smith MA; de Oliveira EH
[Ad] Endereço:Programa de Pós-Graduação em Genética e Biologia Molecular, ICB, UFPA, Belém, PA, Brazil.
[Ti] Título:Comparative Cytogenetics between Two Important Songbird, Models: The Zebra Finch and the Canary.
[So] Source:PLoS One;12(1):e0170997, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Songbird species (order Passeriformes, suborder Oscines) are important models in various experimental fields spanning behavioural genomics to neurobiology. Although the genomes of some songbird species were sequenced recently, the chromosomal organization of these species is mostly unknown. Here we focused on the two most studied songbird species in neuroscience, the zebra finch (Taeniopygia guttata) and the canary (Serinus canaria). In order to clarify these issues and also to integrate chromosome data with their assembled genomes, we used classical and molecular cytogenetics in both zebra finch and canary to define their chromosomal homology, localization of heterochromatic blocks and distribution of rDNA clusters. We confirmed the same diploid number (2n = 80) in both species, as previously reported. FISH experiments confirmed the occurrence of multiple paracentric and pericentric inversions previously found in other species of Passeriformes, providing a cytogenetic signature for this order, and corroborating data from in silico analyses. Additionally, compared to other Passeriformes, we detected differences in the zebra finch karyotype concerning the morphology of some chromosomes, in the distribution of 5S rDNA clusters, and an inversion in chromosome 1.
[Mh] Termos MeSH primário: Canários/genética
Citogenética
Evolução Molecular
Tentilhões/genética
[Mh] Termos MeSH secundário: Animais
Galinhas/genética
Inversão Cromossômica/genética
Coloração Cromossômica
Genômica
Hibridização in Situ Fluorescente
Cariótipo
Cariotipagem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170808
[Lr] Data última revisão:
170808
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170128
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0170997



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