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Pesquisa : F01.145.113 [Categoria DeCS]
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[PMID]:29447197
[Au] Autor:Fujita T; Kozuka-Hata H; Hori Y; Takeuchi J; Kubo T; Oyama M
[Ad] Endereço:Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
[Ti] Título:Shotgun proteomics deciphered age/division of labor-related functional specification of three honeybee (Apis mellifera L.) exocrine glands.
[So] Source:PLoS One;13(2):e0191344, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The honeybee (Apis mellifera L.) uses various chemical signals produced by the worker exocrine glands to maintain the functioning of its colony. The roles of worker postcerebral glands (PcGs), thoracic glands (TGs), and mandibular glands (MGs) and the functional changes they undergo according to the division of labor from nursing to foraging are not as well studied. To comprehensively characterize the molecular roles of these glands in workers and their changes according to the division of labor of workers, we analyzed the proteomes of PcGs, TGs, and MGs from nurse bees and foragers using shotgun proteomics technology. We identified approximately 2000 proteins from each of the nurse bee or forager glands and highlighted the features of these glands at the molecular level by semiquantitative enrichment analyses of frequently detected, gland-selective, and labor-selective proteins. First, we found the high potential to produce lipids in PcGs and MGs, suggesting their relation to pheromone production. Second, we also found the proton pumps abundant in TGs and propose some transporters possibly related to the saliva production. Finally, our data unveiled candidate enzymes involved in labor-dependent acid production in MGs.
[Mh] Termos MeSH primário: Abelhas/genética
Glândulas Exócrinas/fisiologia
Proteômica/métodos
[Mh] Termos MeSH secundário: Fatores Etários
Sequência de Aminoácidos
Animais
Abelhas/metabolismo
Comportamento Animal/fisiologia
Glândulas Exócrinas/citologia
Glândulas Exócrinas/metabolismo
Proteínas de Insetos/metabolismo
Feromônios/metabolismo
Proteoma/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Insect Proteins); 0 (Pheromones); 0 (Proteome)
[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:180216
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191344


  2 / 93324 MEDLINE  
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[PMID]:29447185
[Au] Autor:Taylor GT; Ackerman JT; Shaffer SA
[Ad] Endereço:Department of Biological Sciences, San Jose State University, San Jose, California, United States of America.
[Ti] Título:Egg turning behavior and incubation temperature in Forster's terns in relation to mercury contamination.
[So] Source:PLoS One;13(2):e0191390, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Egg turning behavior is an important determinant of egg hatchability, but it remains relatively understudied. Here, we examined egg turning rates and egg temperatures in Forster's terns (Sterna forsteri). We used artificial eggs containing a data logger with a 3-D accelerometer, a magnetometer, and a temperature thermistor to monitor parental incubation behavior of 131 tern nests. Overall, adults turned their eggs an average (±SD) of 3.8 ± 0.8 turns h-1, which is nearly two times higher than that of other seabirds. Egg turning rates increased with nest initiation date. We also examined egg turning rates and egg temperatures in relation to egg mercury contamination. Mercury contamination has been shown to be associated with reduced egg hatchability, and we hypothesized that mercury may decrease egg hatchability via altered egg turning behavior by parents. Despite the high variability in egg turning rates among individuals, the rate of egg turning was not related to mercury concentrations in sibling eggs. These findings highlight the need for further study concerning the potential determinants of egg turning behavior.
[Mh] Termos MeSH primário: Comportamento Animal/fisiologia
Charadriiformes/fisiologia
Comportamento de Nidação/fisiologia
[Mh] Termos MeSH secundário: Animais
Comportamento Animal/efeitos dos fármacos
Charadriiformes/metabolismo
Ovos/envenenamento
Poluentes Ambientais
Mercúrio/efeitos adversos
Mercúrio/metabolismo
Intoxicação por Mercúrio/fisiopatologia
Temperatura Ambiente
Poluentes Químicos da Água/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Environmental Pollutants); 0 (Water Pollutants, Chemical); FXS1BY2PGL (Mercury)
[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:180216
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191390


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[PMID]:29431945
[Au] Autor:Sinitskaya TA; Malinovskaya NN
[Ti] Título:[Toxicological-hygienic justification of the acceptable daily intake of acetamiprid].
[So] Source:Gig Sanit;95(11):1055-8, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:Neonicotinoids are currently meaningful component of rotation schemes of insecticides of selective action in the system of integrated pest control, which have agricultural importance in many countries. The research results of the biological impact of acetamiprid (neonicotinoids) on the body of laboratory animals are given in the article. The study showed that the explored active substance is related to the moderately hazardous compounds (hazard category 3) in case of one-time per oral penetration. Acetamiprid has polytropic action in the case of chronic (12 months) oral entering the body of laboratory animals, it gives rise changes in functionality of the central nervous system, blood system, liver functioning. On the base of alterations of the studied indices there were established both the no-effect dose level (NOEL) and acceptable daily intake of acetamiprid for humans.
[Mh] Termos MeSH primário: Células Sanguíneas/efeitos dos fármacos
Sistema Nervoso Central/efeitos dos fármacos
Neonicotinoides
Envenenamento
[Mh] Termos MeSH secundário: Administração Oral
Animais
Comportamento Animal/efeitos dos fármacos
Modelos Animais de Doenças
Testes Hematológicos/métodos
Inseticidas/farmacologia
Inseticidas/toxicidade
Testes de Função Hepática/métodos
Concentração Máxima Permitida
Neonicotinoides/farmacologia
Neonicotinoides/toxicidade
Nível de Efeito Adverso não Observado
Órgãos em Risco
Envenenamento/sangue
Envenenamento/diagnóstico
Envenenamento/etiologia
Ratos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Insecticides); 0 (Neonicotinoids); 5HL5N372P0 (acetamiprid)
[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:180213
[St] Status:MEDLINE


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[PMID]:29431328
[Au] Autor:Vokina VA; Sosedova LM; Filippova TM
[Ti] Título:[The study of neurotoxicity of toluene in conditions of experimental modeling of prenatal hypoxic damage of the brain].
[So] Source:Gig Sanit;95(9):895-9, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:There was executed the study of the impact of toluene on indices of behavior, cognitive capabilities and bioelectric activity of the brain in white rats with normal course of the period of antenatal development and against background ofprenatal hemic hypoxia Prenatal hypoxia was modeled in pregnant female rats by subcutaneous injection of sodium nitrite in a dose of 50 mg/kg at from the 10 to the 19 day of gestation. At the age of 3 months the males from the obtained offspring were exposed to inhalation exposure of toluene (150 ppm, 4 weeks). After exposure to toluene in animals there was evaluated the pattern of individual behavior, indices of cognitive capabilities and also bioelectric activity of the brain. There were revealed such common consistencies of transformations in the behavior of exposed to toluene animals with normal and impaired embryogenesis as disturbed motor activity, reduction of exploratory behavior and cognitive functions, impaired bioelectric potentials of the brain. Features of changes in behavior and EEG indices in toluene-exposed rats with prenatal hypoxia are characterized by inhibition of motor activity, increased anxiety and latency of main peaks of auditory and visual evoked potentials. Prenatal hypoxic damage of the central nervous system was shown to be an aggravating factor in toluene intoxication in rats.
[Mh] Termos MeSH primário: Comportamento Animal
Encéfalo
Cognição
Hipóxia-Isquemia Encefálica
Complicações na Gravidez/fisiopatologia
Tolueno/farmacologia
[Mh] Termos MeSH secundário: Animais
Comportamento Animal/efeitos dos fármacos
Comportamento Animal/fisiologia
Encéfalo/efeitos dos fármacos
Encéfalo/fisiopatologia
Mapeamento Encefálico/métodos
Cognição/efeitos dos fármacos
Cognição/fisiologia
Modelos Animais de Doenças
Feminino
Hipóxia-Isquemia Encefálica/complicações
Hipóxia-Isquemia Encefálica/fisiopatologia
Neurotoxinas/farmacologia
Gravidez
Ratos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Neurotoxins); 3FPU23BG52 (Toluene)
[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:180213
[St] Status:MEDLINE


  5 / 93324 MEDLINE  
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[PMID]:29381753
[Au] Autor:Sprague TA; Bateman HL
[Ad] Endereço:College of Integrative Sciences and Arts, Arizona State University, Mesa, Arizona, United States of America.
[Ti] Título:Influence of seasonality and gestation on habitat selection by northern Mexican gartersnakes (Thamnophis eques megalops).
[So] Source:PLoS One;13(1):e0191829, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Species conservation requires a thorough understanding of habitat requirements. The northern Mexican gartersnake (Thamnophis eques megalops) was listed as threatened under the U.S. Endangered Species Act in 2014. Natural resource managers are interested in understanding the ecology of this subspecies to guide management decisions and to determine what features are necessary for habitat creation and restoration. Our objective was to identify habitat selection of northern Mexican gartersnakes in a highly managed, constructed wetland hatchery. We deployed transmitters on 42 individual gartersnakes and documented use of habitat types and selection of specific habitat features. Habitat selection was similar between males and females and varied seasonally. During the active season (March-October), gartersnakes primarily selected wetland edge habitat with abundant cover. Gestating females selected similar locations but with less dense cover. During the inactive season (November-February), gartersnakes selected upland habitats, including rocky slopes with abundant vegetation. These results of this study can help inform management of the subspecies, particularly in human-influenced habitats. Conservation of this subspecies should incorporate a landscape-level approach that includes abundant wetland edge habitat with a mosaic of dense cover for protection and sparsely vegetated areas for basking connected to terrestrial uplands for overwintering.
[Mh] Termos MeSH primário: Comportamento Animal
Colubridae/fisiologia
Ecossistema
Estações do Ano
[Mh] Termos MeSH secundário: Animais
Feminino
Masculino
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[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:180131
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191829


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[PMID]:29202686
[Au] Autor:Feldmeyer B; Elsner D; Alleman A; Foitzik S
[Ad] Endereço:Senckenberg Biodiversity and Climate Research Centre (BiK-F), Molecular Ecology, Senckenberganlage 25, 60325, Frankfurt am Main, Germany. barbara.feldmeyer@senckenberg.de.
[Ti] Título:Species-specific genes under selection characterize the co-evolution of slavemaker and host lifestyles.
[So] Source:BMC Evol Biol;17(1):237, 2017 Dec 04.
[Is] ISSN:1471-2148
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The transition to a parasitic lifestyle entails comprehensive changes to the selective regime. In parasites, genes encoding for traits that facilitate host detection, exploitation and transmission should be under selection. Slavemaking ants are social parasites that exploit the altruistic behaviour of their hosts by stealing heterospecific host brood during raids, which afterwards serve as slaves in slavemaker nests. Here we search for evidence of selection in the transcriptomes of three slavemaker species and three closely related hosts. We expected selection on genes underlying recognition and raiding or defense behaviour. Analyses of selective forces in species with a slavemaker or host lifestyle allowed investigation into whether or not repeated instances of slavemaker evolution share the same genetic basis. To investigate the genetic basis of host-slavemaker co-evolution, we created orthologous clusters from transcriptome sequences of six Temnothorax ant species - three slavemakers and three hosts - to identify genes with signatures of selection. We further tested for functional enrichment in selected genes from slavemakers and hosts respectively and investigated which pathways the according genes belong to. RESULTS: Our phylogenetic analysis, based on more than 5000 ortholog sequences, revealed sister species status for two slavemakers as well as two hosts, contradicting a previous phylogeny based on mtDNA. We identified 309 genes with signs of positive selection on branches leading to slavemakers and 161 leading to hosts. Among these were genes potentially involved in cuticular hydrocarbon synthesis, thus species recognition, and circadian clock functionality possibly explaining the different activity patterns of slavemakers and hosts. There was little overlap of genes with signatures of positive selection among species, which are involved in numerous different functions and different pathways. CONCLUSIONS: We identified different genes, functions and pathways under positive selection in each species. These results point to species-specific adaptations rather than convergent trajectories during the evolution of the slavemaker and host lifestyles suggesting that the evolution of parasitism, even in closely related species, may be achieved in diverse ways.
[Mh] Termos MeSH primário: Formigas/genética
Formigas/parasitologia
Comportamento Animal
Evolução Biológica
Interações Hospedeiro-Parasita/genética
Seleção Genética
[Mh] Termos MeSH secundário: Animais
Regulação da Expressão Gênica
Funções Verossimilhança
Filogenia
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:171206
[St] Status:MEDLINE
[do] DOI:10.1186/s12862-017-1078-9


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[PMID]:29175402
[Au] Autor:Rafiee M; Dargahi L; Eslami A; Beirami E; Jahangiri-Rad M; Sabour S; Amereh F
[Ad] Endereço:Environmental and Occupational Hazards Control Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
[Ti] Título:Neurobehavioral assessment of rats exposed to pristine polystyrene nanoplastics upon oral exposure.
[So] Source:Chemosphere;193:745-753, 2018 Feb.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The increasing use of plastics has raised concerns about pollution of freshwater by these polymeric materials. Knowledge about their potential effects on environmental and public health is limited. Recent publications have suggested that the degradation of plastics will result in the release of nano-sized plastic particles to the environment. Therefore, it is of utmost importance to gain knowledge about whether and how nanoplastics affect living organisms. The present study aimed to analyse potential neurobehavioral effects of polystyrene nanoparticles (PS-NPs) after long-term exposure on rat. Potential effects of PS-NPs were investigated using four test dosages (1, 3, 6, and 10 mg PS-NPs/kg of body weight/day) administrated orally with adult Wistar male rats for five weeks. Neurobehavioral tests were chosen to assess a variety of behavioral domains. Particle diameters in test suspensions were determined through dynamic light scattering and showed an average hydrodynamic diameter of approximately 38.92 nm. No statistically significant behavioral effects were observed in all tests performed (p > 0.05). In the elevated plus maze, PS-NPs-exposed rats showed greater number of entries into open arms compared to controls. Also, PS-NPs had no significant influence on body weight of animals. Taking into account the subtle and transient nature of neurobehavioral consequences, however, these results underline the possibility of even pristine plastic nanoparticles to induce behavioral alteration in the rest of the food web, including for marine biota and humans. Indeed even though studied neurobehavioral effects in our study was not statistically significant, the observed subtle effects may be clinically considerable.
[Mh] Termos MeSH primário: Comportamento Animal/efeitos dos fármacos
Poliestirenos/farmacologia
Poluentes Químicos da Água/farmacologia
[Mh] Termos MeSH secundário: Animais
Cadeia Alimentar
Seres Humanos
Masculino
Nanopartículas/efeitos adversos
Nanopartículas/metabolismo
Tamanho da Partícula
Plásticos
Ratos
Ratos Wistar
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plastics); 0 (Polystyrenes); 0 (Water Pollutants, Chemical)
[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:171128
[St] Status:MEDLINE


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[PMID]:28934711
[Au] Autor:Colón-Cruz L; Kristofco L; Crooke-Rosado J; Acevedo A; Torrado A; Brooks BW; Sosa MA; Behra M
[Ad] Endereço:Department of Anatomy and Neurobiology, School of Medicine, Medical Sciences Campus of the University of Puerto Rico (UPR-MSC), San Juan, PR, USA; Puerto Rico Center for Environmental Neuroscience, Institute of Neurobiology, Medical Sciences Campus of the University of Puerto Rico, San Juan, PR, USA
[Ti] Título:Alterations of larval photo-dependent swimming responses (PDR): New endpoints for rapid and diagnostic screening of aquatic contamination.
[So] Source:Ecotoxicol Environ Saf;147:670-680, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Detection and toxicity assessment of waterborne contaminants are crucial for protecting human health and the environment. Development of easy-to-implement, rapid and cost-effective tools to measure anthropogenic effects on watersheds are critical for responsible management, particularly in times of increasing development and urbanization. Traditionally, environmental toxicology has focused on limited endpoints, such as lethality and fertility, which are directly affecting population levels. However, more sensitive readings are needed to assess sub-lethal effects. Monitoring of contaminant-induced behavior alterations was proposed before, but is difficult to implement in the wild and performing it in aquatic laboratory models seem more suited. For this purpose, we adapted a photo-dependent swimming response (PDR) that was previously described in zebrafish larva. We first asked if PDR was present in other aquatic animals. We measured PDR in larvae from two freshwater prawn species (Macrobrachium rosenbergii, MR, and Macrobrachium carcinus, MC) and from another fish the fathead minnow (FHM, Pimephales promelas). In all, we found a strong and reproducible species-specific PDR, which is arguing that this behavior is important, therefore an environmental relevant endpoint. Next, we measured PDR in fish larvae after acute exposure to copper, a common waterborne contaminant. FHM larvae were hyperactive at all tested concentrations in contrast to ZF larvae, which exhibited a concentration-dependent hyperactivity. In addition to this well-accepted anxiety-like behavior, we examined two more: photo-stimulated startle response (PSSR) and center avoidance (CA). Both were significantly increased. Therefore, PDR measures after acute exposure to this waterborne contaminant provided as sensitive readout for its detection and toxicity assessment. This approach represents an opportunity to diagnostically examine any substance, even when present in complex mixtures like ambient surface waters. Mechanistic studies of toxicity using the extensive molecular tool kit of ZF could be a direct extension of such approaches.
[Mh] Termos MeSH primário: Cobre/toxicidade
Monitoramento Ambiental/métodos
Larva/efeitos dos fármacos
Luz
Natação
Poluentes Químicos da Água/toxicidade
[Mh] Termos MeSH secundário: Animais
Comportamento Animal/efeitos dos fármacos
Comportamento Animal/efeitos da radiação
Peixes/fisiologia
Água Doce/química
Seres Humanos
Larva/fisiologia
Larva/efeitos da radiação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Water Pollutants, Chemical); 789U1901C5 (Copper)
[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:170922
[St] Status:MEDLINE


  9 / 93324 MEDLINE  
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[PMID]:29441971
[Au] Autor:Rutkowska M; Slupski W; Trocha M; Szandruk M; Rymaszewska J
[Ti] Título:The anxiolytic activity of n-3 PUFAs enriched egg yolk phospholipids in rat behavioral studies.
[So] Source:Pharmazie;71(11):655-659, 2016 11 02.
[Is] ISSN:0031-7144
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Phospholipids play an important role in the biochemical and physiological processes of cells. An association between disturbed phospholipids metabolism in neuronal tissue and anxiety it was shown. The aim of this study was to examine the anxiolytic properties of phospholipids obtained from a new generation of eggs enriched in n-3 PUFA and its effect on locomotor activity in rat behavioral studies N-3 PUFA-enriched egg yolk phospholipids ("super lecithin") were added to the standard feed. Rats were fed by chow without (control group) or with (experimental group) addition of phospholipids. After six weeks of supplementation, the effect of phospholipids on locomotor activity in the open field test and anxiolytic properties in elevated plus maze and Vogel conflict test were examined. In the open field test the total distance traveled in the experimental group was similar to the control group. In the elevated plus maze test a six weeks phospholipids' administration significantly prolonged the time spent on the open arms by rats from experimental group compared to control group. The number of entries into the open arms was also increased but the difference was not statistically significant. The number of punished drinking water in the Vogel conflict test increased significantly in experimental versus control group. The obtained results suggest that the phospholipids isolated from n-3 PUFA enriched egg yolk have a specific anxiolytic effect, without general sedative influence.
[Mh] Termos MeSH primário: Ansiolíticos/farmacologia
Comportamento Animal/efeitos dos fármacos
Gema de Ovo/química
Ácidos Graxos Ômega-3/farmacologia
Fosfolipídeos/farmacologia
[Mh] Termos MeSH secundário: Animais
Conflito (Psicologia)
Comportamento Exploratório/efeitos dos fármacos
Masculino
Atividade Motora/efeitos dos fármacos
Ratos
Ratos Wistar
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Anxiety Agents); 0 (Fatty Acids, Omega-3); 0 (Phospholipids)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180215
[St] Status:MEDLINE
[do] DOI:10.1691/ph.2016.6646


  10 / 93324 MEDLINE  
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[PMID]:29441969
[Au] Autor:Lin S; Wu J; Guo W; Zhu Y
[Ti] Título:Effects of leonurine on intracerebral haemorrhage by attenuation of perihematomal edema and neuroinflammation the JNK pathway.
[So] Source:Pharmazie;71(11):644-650, 2016 11 02.
[Is] ISSN:0031-7144
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Perihematomal edema plays a critical role in secondary brain injury in intracerebral hemorrhage (ICH), which is associated with inflammation, hematoma toxicity and oxidative stress. In this work, we investigated the protective effects of leonurine, an alkaloid of Herbal Leonuri, and possible mechanisms to provide a basis for a new therapeutic approach for ICH treatment. In in vivo studies, we demonstrated for the first time that leonurine treatment substantially decreased perihematomal edema, ameliorated neurobehavioral function deficits, reduced apoptosis and protected injured cerebral tissue after ICH. These benefits appear to be ascribed to leonurine effectively attenuating bloodbrain barrier (BBB) breakdown in vivo, by inhibiting degradation of hemoglobin and alleviating inflammatory mediator release. In this study, BV-2 cells were exposed in vitro to oxyhemoglobin (OxyHb) at a concentration of 10 µM to mimic neuroinflammation after ICH. Consistent with the results of the in vivo study, leonurine significantly inhibited OxyHbinduced inflammatory proteins expression in BV-2 cells, mainly through inhibiting the c-Jun N-terminal kinase (JNK) signaling pathway. This is the first time that leonurine is proved to be capable to protect the injured cerebral tissue after ICH, based on alleviating neuroinflammation and attenuating BBB breakdown to ameliorate perihematomal edema.
[Mh] Termos MeSH primário: Edema Encefálico/tratamento farmacológico
Hemorragia Cerebral/tratamento farmacológico
Encefalite/tratamento farmacológico
Ácido Gálico/análogos & derivados
Hematoma/tratamento farmacológico
Proteínas Proto-Oncogênicas c-jun/efeitos dos fármacos
Transdução de Sinais/efeitos dos fármacos
[Mh] Termos MeSH secundário: Animais
Comportamento Animal/efeitos dos fármacos
Barreira Hematoencefálica/efeitos dos fármacos
Água Corporal/metabolismo
Edema Encefálico/patologia
Edema Encefálico/psicologia
Hemorragia Cerebral/psicologia
Encefalite/psicologia
Ácido Gálico/farmacologia
Hematoma/patologia
Hematoma/psicologia
Mediadores da Inflamação/metabolismo
Masculino
Metaloproteinase 9 da Matriz/metabolismo
Oxiemoglobinas/metabolismo
Ratos
Ratos Sprague-Dawley
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Inflammation Mediators); 0 (Oxyhemoglobins); 0 (Proto-Oncogene Proteins c-jun); 09Q5W34QDA (leonurine); 632XD903SP (Gallic Acid); EC 3.4.24.35 (Matrix Metalloproteinase 9); EC 3.4.24.35 (Mmp9 protein, rat)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180215
[St] Status:MEDLINE
[do] DOI:10.1691/ph.2016.6692



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