Base de dados : MEDLINE
Pesquisa : G06.591 [Categoria DeCS]
Referências encontradas : 7776 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 778 ir para página                         

  1 / 7776 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
[PMID]:29431338
[Au] Autor:Shevchenko AA; Kulagin AA; Grigorenko LV
[Ti] Título:[Hygienic assessment of the impact of diesel fuel on the ordinary black soil microbiocenosis].
[So] Source:Gig Sanit;95(10):942-5, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:The main sources of soil contamination by oil products in the Dnepropetrovsk region are oil depots, gas stations and all types of transport that use and transport oil. The diesel fuel was found to be the one of the priority multicomponent components of the petroleum products, so it there was occurred the necessity for the hygienic regulation of the oil component in order to monitor a multicomponent composition ofpetroleum products in the study of complex influence of environmental factors on health population. In the study of the effect of various concentrations of diesel fuel on the number of total bacterial count (TBC) as the threshold for general sanitary indicator of hazard, there was recommended the concentration of4000 mg/kg, which oppressed the vital activity of soil microorganisms by 50-27.3% for the first 2 weeks of the laboratory experiment.
[Mh] Termos MeSH primário: Gasolina
Microbiota/efeitos dos fármacos
Solo
[Mh] Termos MeSH secundário: Monitoramento Ambiental/métodos
Monitoramento Ambiental/normas
Poluição Ambiental/efeitos adversos
Poluição Ambiental/análise
Poluição Ambiental/prevenção & controle
Gasolina/efeitos adversos
Gasolina/análise
Seres Humanos
Saúde Pública/métodos
Saúde Pública/normas
Solo/química
Solo/normas
Microbiologia do Solo
Poluentes do Solo/efeitos adversos
Poluentes do Solo/análise
Ucrânia/epidemiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Gasoline); 0 (Soil); 0 (Soil Pollutants)
[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


  2 / 7776 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
[PMID]:29431333
[Au] Autor:Kirtsideli IY; Abakumov EV; Teshebaev SB; Zelenskaya MS; Vlasov DY; Krylenkov VA; Ryabusheva YV; Sokolov VT; Barantsevich EP
[Ti] Título:[Microbial communities in regions of arctic settlements].
[So] Source:Gig Sanit;95(10):293-9, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:The composition and the structure of microbial communities in areas of Arctic settlements were studied. The main attention has been given to microscopic fungi. As result of observation of 5 Arctic regions 117 species of microscopic fungi are revealed in soils and anthropogenic substrates. The identification was carried out with the use ofmycological and molecular genetic methods. Most ofspecies belong to the Ascomycotina. Genus Penicillium is characterized by the most species diversity (24 species). Most offungi are destructors of various materials and potential human pathogens. Dominant species are revealed. The distribution of microorganisms in the living and working areas of polar stations, as well as the adjacent areas are described. Black-colored fungi adapted to unfavorable environment are often the dominated group of microorganisms on soils and anthropogenic substrates. The shaping of soil microbiota was shown to be related to the anthropogenic impact. Considerable similarity of microbial communities composition in the soil and man-made substrates is fixed. As result of mycological analysis of contaminated soils 76 species of microscopic fungi were observed, but 41 species of them (53.9%) were identified in the areas of Arctic polar stations on the man-made materials. These species include the representatives of the genera Alternaria, Aspergillus, Aureobasidium, Chaetomium, Cladosporium, Exophiala, Geomyces, Humicola, Penicillium, Mucor, Phoma, Rhodotorula, Trichoderma and Ulocladium. The obtained data show a significant similarity in species composition of contaminated soils and anthropogenic substrates. Human activity contributes to the distribution of cosmopolitan species, including opportunistic fungi, in the Arctic region. The high numbers of organotrophic bacteria were revealed in soil samples. Some species of microorganisms produce the organic acids in an external environment that promotes the erosion of materials.
[Mh] Termos MeSH primário: Fungos Mitospóricos
Microbiologia do Solo
Solo/normas
[Mh] Termos MeSH secundário: Regiões Árticas/epidemiologia
Biota
Monitoramento Ambiental/métodos
Monitoramento Ambiental/estatística & dados numéricos
Seres Humanos
Microbiota
Fungos Mitospóricos/classificação
Fungos Mitospóricos/isolamento & purificação
Fungos Mitospóricos/fisiologia
Filogeografia
Federação Russa/epidemiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil)
[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


  3 / 7776 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29385188
[Au] Autor:Hamad I; Abou Abdallah R; Ravaux I; Mokhtari S; Tissot-Dupont H; Michelle C; Stein A; Lagier JC; Raoult D; Bittar F
[Ad] Endereço:Aix-Marseille Université, CNRS 7278, IRD 198, Inserm 1095, AP-HM, URMITE, IHU Méditerranée Infection, Marseille, France.
[Ti] Título:Metabarcoding analysis of eukaryotic microbiota in the gut of HIV-infected patients.
[So] Source:PLoS One;13(1):e0191913, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Research on the relationship between changes in the gut microbiota and human disease, including AIDS, is a growing field. However, studies on the eukaryotic component of the intestinal microbiota have just begun and have not yet been conducted in HIV-infected patients. Moreover, eukaryotic community profiling is influenced by the use of different methodologies at each step of culture-independent techniques. Herein, initially, four DNA extraction protocols were compared to test the efficiency of each method in recovering eukaryotic DNA from fecal samples. Our results revealed that recovering eukaryotic components from fecal samples differs significantly among DNA extraction methods. Subsequently, the composition of the intestinal eukaryotic microbiota was evaluated in HIV-infected patients and healthy volunteers through clone sequencing, high-throughput sequencing of nuclear ribosomal internal transcribed spacers 1 (ITS1) and 2 (ITS2) amplicons and real-time PCRs. Our results revealed that not only richness (Chao-1 index) and alpha diversity (Shannon diversity) differ between HIV-infected patients and healthy volunteers, depending on the molecular strategy used, but also the global eukaryotic community composition, with little overlapping taxa found between techniques. Moreover, our results based on cloning libraries and ITS1/ITS2 metabarcoding sequencing showed significant differences in fungal composition between HIV-infected patients and healthy volunteers, but without distinct clusters separating the two groups. Malassezia restricta was significantly more prevalent in fecal samples of HIV-infected patients, according to cloning libraries, whereas operational taxonomic units (OTUs) belonging to Candida albicans and Candida tropicalis were significantly more abundant in fecal samples of HIV-infected patients compared to healthy subjects in both ITS subregions. Finally, real-time PCR showed the presence of Microsporidia, Giardia lamblia, Blastocystis and Hymenolepis diminuta in different proportions in fecal samples from HIV patients as compared to healthy individuals. Our work revealed that the use of different sequencing approaches can impact the perceived eukaryotic diversity results of the human gut. We also provide a more comprehensive view of the eukaryotic community in the gut of HIV-infected patients through the complementarity of the different molecular techniques used. Combining these various methodologies may provide a gold standard for a more complete characterization of the eukaryotic microbiome in future studies.
[Mh] Termos MeSH primário: Código de Barras de DNA Taxonômico
Infecções por HIV/microbiologia
Intestinos/microbiologia
Microbiota
[Mh] Termos MeSH secundário: Estudos de Casos e Controles
Seres Humanos
Reação em Cadeia da Polimerase em Tempo Real
[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:180201
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191913


  4 / 7776 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29364944
[Au] Autor:Noyes N; Cho KC; Ravel J; Forney LJ; Abdo Z
[Ad] Endereço:Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado, United States of America.
[Ti] Título:Associations between sexual habits, menstrual hygiene practices, demographics and the vaginal microbiome as revealed by Bayesian network analysis.
[So] Source:PLoS One;13(1):e0191625, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The vaginal microbiome plays an influential role in several disease states in reproductive age women, including bacterial vaginosis (BV). While demographic characteristics are associated with differences in vaginal microbiome community structure, little is known about the influence of sexual and hygiene habits. Furthermore, associations between the vaginal microbiome and risk symptoms of bacterial vaginosis have not been fully elucidated. Using Bayesian network (BN) analysis of 16S rRNA gene sequence results, demographic and extensive questionnaire data, we describe both novel and previously documented associations between habits of women and their vaginal microbiome. The BN analysis approach shows promise in uncovering complex associations between disparate data types. Our findings based on this approach support published associations between specific microbiome members (e.g., Eggerthella, Gardnerella, Dialister, Sneathia and Ruminococcaceae), the Nugent score (a BV diagnostic) and vaginal pH (a risk symptom of BV). Additionally, we found that several microbiome members were directly connected to other risk symptoms of BV (such as vaginal discharge, odor, itch, irritation, and yeast infection) including L. jensenii, Corynebacteria, and Proteobacteria. No direct connections were found between the Nugent Score and risk symptoms of BV other than pH, indicating that the Nugent Score may not be the most useful criteria for assessment of clinical BV. We also found that demographics (i.e., age, ethnicity, previous pregnancy) were associated with the presence/absence of specific vaginal microbes. The resulting BN revealed several as-yet undocumented associations between birth control usage, menstrual hygiene practices and specific microbiome members. Many of these complex relationships were not identified using common analytical methods, i.e., ordination and PERMANOVA. While these associations require confirmatory follow-up study, our findings strongly suggest that future studies of the vaginal microbiome and vaginal pathologies should include detailed surveys of participants' sanitary, sexual and birth control habits, as these can act as confounders in the relationship between the microbiome and disease. Although the BN approach is powerful in revealing complex associations within multidimensional datasets, the need in some cases to discretize the data for use in BN analysis can result in loss of information. Future research is required to alleviate such limitations in constructing BN networks. Large sample sizes are also required in order to allow for the incorporation of a large number of variables (nodes) into the BN, particularly when studying associations between metadata and the microbiome. We believe that this approach is of great value, complementing other methods, to further our understanding of complex associations characteristic of microbiome research.
[Mh] Termos MeSH primário: Higiene
Menstruação
Microbiota
Comportamento Sexual
Vagina/microbiologia
[Mh] Termos MeSH secundário: Teorema de Bayes
Feminino
Seres Humanos
[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:180125
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191625


  5 / 7776 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28462587
[Au] Autor:Whon TW; Shin NR; Jung MJ; Hyun DW; Kim HS; Kim PS; Bae JW
[Ad] Endereço:Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University , Seoul, Republic of Korea.
[Ti] Título:Conditionally Pathogenic Gut Microbes Promote Larval Growth by Increasing Redox-Dependent Fat Storage in High-Sugar Diet-Fed Drosophila.
[So] Source:Antioxid Redox Signal;27(16):1361-1380, 2017 Dec 01.
[Is] ISSN:1557-7716
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:AIMS: Changes in the composition of the gut microbiota contribute to the development of obesity and subsequent complications that are associated with metabolic syndrome. However, the role of increased numbers of certain bacterial species during the progress of obesity and factor(s) controlling the community structure of gut microbiota remain unclear. Here, we demonstrate the inter-relationship between Drosophila melanogaster and their resident gut microbiota under chronic high-sugar diet (HSD) conditions. RESULTS: Chronic feeding of an HSD to Drosophila resulted in a predominance of resident uracil-secreting bacteria in the gut. Axenic insects mono-associated with uracil-secreting bacteria or supplemented with uracil under HSD conditions promoted larval development. Redox signaling induced by bacterial uracil promoted larval growth by regulating sugar and lipid metabolism via activation of p38a mitogen-activated protein kinase. INNOVATION: The present study identified a new redox-dependent mechanism by which uracil-secreting bacteria (previously regarded as opportunistic pathobionts) protect the host from metabolic perturbation under chronic HSD conditions. CONCLUSION: These results illustrate how Drosophila and gut microbes form a symbiotic relationship under stress conditions, and changes in the gut microbiota play an important role in alleviating deleterious diet-derived effects such as hyperglycemia. Antioxid. Redox Signal. 27, 1361-1380.
[Mh] Termos MeSH primário: Drosophila melanogaster/crescimento & desenvolvimento
Vida Livre de Germes
Obesidade/microbiologia
Sacarose/administração & dosagem
[Mh] Termos MeSH secundário: Animais
Bactérias/classificação
Bactérias/isolamento & purificação
Bactérias/metabolismo
Modelos Animais de Doenças
Drosophila melanogaster/microbiologia
Trato Gastrointestinal/microbiologia
Metabolismo dos Lipídeos
Microbiota
Proteína Quinase 14 Ativada por Mitógeno/metabolismo
Obesidade/induzido quimicamente
Oxirredução
Uracila/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
56HH86ZVCT (Uracil); 57-50-1 (Sucrose); EC 2.7.11.24 (Mitogen-Activated Protein Kinase 14)
[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:170503
[St] Status:MEDLINE
[do] DOI:10.1089/ars.2016.6790


  6 / 7776 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29458668
[Au] Autor:Al-Ahmad A; Muzafferiy F; Anderson AC; Wölber JP; Ratka-Krüger P; Fretwurst T; Nelson K; Vach K; Hellwig E
[Ad] Endereço:1​Department of Operative Dentistry and Periodontology, Faculty of Medicine, Medical Center - University of Freiburg, Germany.
[Ti] Título:Shift of microbial composition of peri-implantitis-associated oral biofilm as revealed by 16S rRNA gene cloning.
[So] Source:J Med Microbiol;67(3):332-340, 2018 Mar.
[Is] ISSN:1473-5644
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:PURPOSE: Micro-organisms are important triggers of peri-implant inflammation and analysing their diversity is necessary for peri-implantitis treatment. This study aimed to analyse and compare the microbiota associated with individuals with peri-implantitis, as well as clinically healthy implant sites. METHODOLOGY: Subgingival biofilm samples were taken from 10 individuals with peri-implantitis and from at least 1 clinically healthy implant. DNA was extracted and bacterial 16S rRNA genes were amplified using universal primers. After cloning the PCR-products, amplified inserts of positive clones were digested using restriction endonucleases, and the chosen clones were sequenced. The 16S rDNA-sequences were compared to those from the public sequence databases GenBank, EMBL and DDBJ to determine the corresponding taxa. RESULTS: Differing distributions of taxa belonging to the phyla Firmicutes, Bacteroidetes, Fusobacteria, Actinobacteria, Proteobacteria, Synergistetes, Spirochaetae and TM 7 were detected in both the healthy implant (HI) and the peri-implantitis (PI) groups. A significantly higher relative abundance of phylum Bacteroidetes, as well as of the species Fusobacterium nucleatum, were found in the PI group (P<0.05). The putative periodontal red complex (Porphyromonas gingivalis, Tannerella forsythia) was also detected at significantly higher levels in the PI group (P<0.05), whereas the yellow group, as well as the species Veillonella dispar, tended to be associated with the HI group. CONCLUSION: A shift in the healthy subgingival microbiota was shown in peri-implantitis-associated biofilm. Anaerobic Gram-negative periopathogens, including P. gingivalis and T. forsythia, seem to play an important role in peri-implantitis development and should be considered in treatment and prevention strategies.
[Mh] Termos MeSH primário: Bactérias/isolamento & purificação
Biofilmes
Microbiota/genética
Peri-Implantite/microbiologia
RNA Ribossômico 16S/genética
[Mh] Termos MeSH secundário: Idoso
Idoso de 80 Anos ou mais
Bactérias/classificação
Bactérias/genética
Carga Bacteriana
Fenômenos Fisiológicos Bacterianos
Bacteroides/genética
Bacteroides/isolamento & purificação
Feminino
Fusobacterium nucleatum/genética
Fusobacterium nucleatum/isolamento & purificação
Genes de RNAr
Gengiva/microbiologia
Seres Humanos
Masculino
Meia-Idade
Porphyromonas gingivalis/genética
Porphyromonas gingivalis/isolamento & purificação
Prevotella intermedia/genética
Prevotella intermedia/isolamento & purificação
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (RNA, Ribosomal, 16S)
[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:180221
[St] Status:MEDLINE
[do] DOI:10.1099/jmm.0.000682


  7 / 7776 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29458551
[Au] Autor:Donders GGG; Bellen G; Ruban K; Van Bulck B
[Ad] Endereço:2​Department of Obstetrics and Gynaecology of the General Regional Hospital Heilig Hart, Tienen, Belgium.
[Ti] Título:Short- and long-term influence of the levonorgestrel-releasing intrauterine system (Mirena®) on vaginal microbiota and Candida.
[So] Source:J Med Microbiol;67(3):308-313, 2018 Mar.
[Is] ISSN:1473-5644
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Recurrent vulvovaginal infections are a frequent complaint in young women in need of contraception. However, the influence of the contraceptive method on the course of the disease is not well known. AIM: To investigate the influence of the levonorgestrel-releasing intrauterine-system (LNG-IUS) on the vaginal microflora. METHODS: Short-term (3 months) and long-term (1 to 5 years) changes of vaginal microbiota were compared with pre-insertion values in 252 women presenting for LNG-IUS insertion. Detailed microscopy on vaginal fluid was used to define lactobacillary grades (LBGs), bacterial vaginosis (BV), aerobic vaginitis (AV) and the presence of Candida. Cultures for enteric aerobic bacteria and Candida were used to back up the microscopy findings. Fisher's test was used to compare vaginal microbiome changes pre- and post-insertion. RESULTS: Compared to the pre-insertion period, we found a temporary worsening in LBGs and increased rates of BV and AV after 3 months of LNG-IUS. After 1 and 5 years, however, these changes were reversed, with a complete restoration to pre-insertion levels. Candida increased significantly after long-term carriage of LNG-IUS compared to the period before insertion [OR 2.0 (CL951.1-3.5), P=0.017]. CONCLUSIONS: Short-term use of LNG-IUS temporarily decreases lactobacillary dominance, and increases LBG, AV and BV, but after 1 to 5 years these characteristics return to pre-insertion levels, reducing the risk of complications to baseline levels. Candida colonization, on the other hand, is twice as high after 1 to 5 years of LNG-IUS use, making it less indicated for long-term use in patients with or at risk for recurrent vulvovaginal candidosis.
[Mh] Termos MeSH primário: Candida/efeitos dos fármacos
Dispositivos Intrauterinos Medicados/efeitos adversos
Levanogestrel/administração & dosagem
Microbiota/efeitos dos fármacos
Vagina/microbiologia
[Mh] Termos MeSH secundário: Adulto
Feminino
Seres Humanos
Lactobacillaceae/efeitos dos fármacos
Estudos Prospectivos
Fatores de Tempo
Vaginose Bacteriana/diagnóstico
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
5W7SIA7YZW (Levonorgestrel)
[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:180221
[St] Status:MEDLINE
[do] DOI:10.1099/jmm.0.000657


  8 / 7776 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28968945
[Au] Autor:Amorim CL; Alves M; Castro PML; Henriques I
[Ad] Endereço:Biology Department and CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital 172, 4200-374 Porto, Po
[Ti] Título:Bacterial community dynamics within an aerobic granular sludge reactor treating wastewater loaded with pharmaceuticals.
[So] Source:Ecotoxicol Environ Saf;147:905-912, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Pharmaceuticals are micropollutants often present in wastewater treatment systems. In this study, the potential impact of such micropollutants on the bacterial population within aerobic granular sludge (AGS) bioreactor was investigated. The AGS bacterial community structure and composition were accessed combining DGGE fingerprinting and barcoded pyrosequencing analysis. Both revealed the existence of a dynamic bacterial community, independently of the pharmaceuticals presence. The AGS microbiome at both phylum and class levels varied over time and, after stopping pharmaceuticals feeding, the bacterial community did not return to its initial composition. Nevertheless, most of the assigned OTUs were present throughout the different operational phases. This core microbiome, represented by over 72% of the total sequences in each phase, probably played an important role in biological removal processes, avoiding their failure during the disturbance period. Quantitative-PCR revealed that pharmaceuticals load led to gradual changes on the abundance of ammonia-oxidizing bacteria (AOB), nitrite-oxidizing bacteria (NOB) and polyphosphate-accumulating organisms (PAO) but their persistence during that phase demonstrated the resilience of such bacterial groups. AGS microbiome changed over time but a core community was maintained, probably ensuring the accomplishment of the main biological removal processes.
[Mh] Termos MeSH primário: Reatores Biológicos/microbiologia
Microbiota/efeitos dos fármacos
Preparações Farmacêuticas/análise
Esgotos/microbiologia
Águas Residuais/microbiologia
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Aerobiose
Microbiota/genética
RNA Ribossômico 16S/genética
Esgotos/química
Águas Residuais/química
Purificação da Água/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Pharmaceutical Preparations); 0 (RNA, Ribosomal, 16S); 0 (Sewage); 0 (Waste Water); 0 (Water Pollutants, Chemical)
[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:171004
[St] Status:MEDLINE


  9 / 7776 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29351548
[Au] Autor:Geltsch N; Elek Z; Manczinger L; Vágvölgyi C; Moskát C
[Ad] Endereço:MTA-ELTE-MTM Ecology Research Group, a joint research group of the Hungarian Academy of Sciences, the Biological Institute of the Eötvös Loránd University and the Hungarian Natural History Museum, Budapest, Hungary.
[Ti] Título:Common cuckoos (Cuculus canorus) affect the bacterial diversity of the eggshells of their great reed warbler (Acrocephalus arundinaceus) hosts.
[So] Source:PLoS One;13(1):e0191364, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The common cuckoo (Cuculus canorus) is an avian brood parasite, laying its eggs in the nests of other bird species, where these hosts incubate the parasitic eggs, feed and rear the nestlings. The appearance of a cuckoo egg in a host nest may change the bacterial community in the nest. This may have consequences on the hatchability of host eggs, even when hosts reject the parasitic egg, typically within six days after parasitism. The present study revealed the bacterial community of cuckoo eggshells and those of the great reed warbler (Acrocephalus arundinaceus), one of the main hosts of cuckoos. We compared host eggs from non-parasitized clutches, as well as host and cuckoo eggs from parasitized clutches. As incubation may change bacterial assemblages on eggshells, we compared these egg types in two stages: the egg-laying stage, when incubation has not been started, and the mid-incubation stage (ca. on days 5-7 in incubation), where heat from the incubating female dries eggshells. Our results obtained by the 16S rRNA gene sequencing technique showed that fresh host and cuckoo eggs had partially different bacterial communities, but they became more similar during incubation in parasitized nests. Cluster analysis revealed that fresh cuckoo eggs and incubated host eggs in unparasitized nests (where no cuckoo effect could have happened) were the most dissimilar from the other groups of eggs. Cuckoo eggs did not reduce the hatchability of great reed warbler eggs. Our results on the cuckoo-great reed warbler relationship supported the idea that brood parasites may change bacterial microbiota in the host nest. Further studies should reveal how bacterial communities of cuckoo eggshells may vary by host-specific races (gentes) of cuckoos.
[Mh] Termos MeSH primário: Aves/microbiologia
Casca de Ovo/microbiologia
Aves Canoras/microbiologia
Aves Canoras/parasitologia
[Mh] Termos MeSH secundário: Animais
Biodiversidade
Aves/fisiologia
Feminino
Interações Hospedeiro-Parasita/genética
Microbiota/genética
Comportamento de Nidação
RNA Bacteriano/genética
RNA Ribossômico 16S/genética
Aves Canoras/fisiologia
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (RNA, Bacterial); 0 (RNA, Ribosomal, 16S)
[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:180120
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191364


  10 / 7776 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29311119
[Au] Autor:Clemente JC; Manasson J; Scher JU
[Ad] Endereço:Department of Genetics and Genomic Sciences, Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
[Ti] Título:The role of the gut microbiome in systemic inflammatory disease.
[So] Source:BMJ;360:j5145, 2018 01 08.
[Is] ISSN:1756-1833
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The role of the gut microbiome in models of inflammatory and autoimmune disease is now well characterized. Renewed interest in the human microbiome and its metabolites, as well as notable advances in host mucosal immunology, has opened multiple avenues of research to potentially modulate inflammatory responses. The complexity and interdependence of these diet-microbe-metabolite-host interactions are rapidly being unraveled. Importantly, most of the progress in the field comes from new knowledge about the functional properties of these microorganisms in physiology and their effect in mucosal immunity and distal inflammation. This review summarizes the preclinical and clinical evidence on how dietary, probiotic, prebiotic, and microbiome based therapeutics affect our understanding of wellness and disease, particularly in autoimmunity.
[Mh] Termos MeSH primário: Doenças Autoimunes/microbiologia
Comportamento Alimentar/fisiologia
Microbioma Gastrointestinal/imunologia
Inflamação/microbiologia
Doenças Inflamatórias Intestinais/microbiologia
Membrana Mucosa/microbiologia
[Mh] Termos MeSH secundário: Doenças Autoimunes/imunologia
Transplante de Microbiota Fecal/métodos
Microbioma Gastrointestinal/fisiologia
Seres Humanos
Inflamação/imunologia
Doenças Inflamatórias Intestinais/imunologia
Doenças Inflamatórias Intestinais/patologia
Microbiota
Membrana Mucosa/imunologia
Prebióticos
Probióticos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL; RESEARCH SUPPORT, NON-U.S. GOV'T; REVIEW
[Nm] Nome de substância:
0 (Prebiotics)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:180110
[St] Status:MEDLINE
[do] DOI:10.1136/bmj.j5145



página 1 de 778 ir para página                         
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde