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  1 / 1934 MEDLINE  
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[PMID]:29377917
[Au] Autor:Xu FQ; Li A; Lan JJ; Wang YM; Yan MJ; Lian SY; Wu X
[Ad] Endereço:College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China.
[Ti] Título:Study of formation of green eggshell color in ducks through global gene expression.
[So] Source:PLoS One;13(1):e0191564, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The green eggshell color produced by ducks is a threshold trait that can be influenced by various factors, such as hereditary, environment and nutrition. The aim of this study was to investigate the genetic regulation of the formation of eggs with green shells in Youxian ducks. We performed integrative analysis of mRNAs and miRNAs expression profiling in the shell gland samples from ducks by RNA-Seq. We found 124 differentially expressed genes that were associated with various pathways, such as the ATP-binding cassette (ABC) transporter and solute carrier supper family pathways. A total of 31 differentially expressed miRNAs were found between ducks laying green eggs and white eggs. KEGG pathway analysis of the predicted miRNA target genes also indicated the functional characteristics of these miRNAs; they were involved in the ABC transporter pathway and the solute carrier (SLC) supper family. Analysis with qRT-PCR was applied to validate the results of global gene expression, which showed a correlation between results obtained by RNA-seq and RT-qPCR. Moreover, a miRNA-mRNA interaction network was established using correlation analysis of differentially expressed mRNA and miRNA. Compared to ducks that lay white eggs, ducks that lay green eggs include six up-regulated miRNAs that had regulatory effects on 35 down-regulated genes, and seven down-regulated miRNAs which influenced 46 up-regulated genes. For example, the ABC transporter pathway could be regulated by expressing gga-miR-144-3p (up-regulated) with ABCG2 (up-regulated) and other miRNAs and genes. This study provides valuable information about mRNA and miRNA regulation in duck shell gland tissues, and provides foundational information for further study on the eggshell color formation and marker-assisted selection for Youxian duck breeding.
[Mh] Termos MeSH primário: Cor
Casca de Ovo/metabolismo
Expressão Gênica
[Mh] Termos MeSH secundário: Animais
Patos
Reação em Cadeia da Polimerase em Tempo Real
Análise de Sequência de RNA
[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:180130
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191564


  2 / 1934 MEDLINE  
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[PMID]:28452328
[Au] Autor:Golafshan N; Gharibi H; Kharaziha M; Fathi M
[Ad] Endereço:Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
[Ti] Título:A facile one-step strategy for development of a double network fibrous scaffold for nerve tissue engineering.
[So] Source:Biofabrication;9(2):025008, 2017 04 28.
[Is] ISSN:1758-5090
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to develop a novel double network scaffold composed of polycaprolactone fumarate (PCLF) and eggshell membrane (ESM) (ESM:PCLF) by using the vacuum infiltration method. Compared to ESM, the mechanical properties of double network scaffold were significantly improved, depending on the solvents applied for double network scaffold formation; acetic acid and dichloromethane. Noticeably, the toughness and strength of double network scaffold prepared using acetic acid were significantly improved compared to ESM (26.6 and 25 times, respectively) attributed to the existence of hydrophilic functional groups in acetic acid which made ESM flexible to absorb further PCLF solution. To assess the effect of double network formation on the biological behavior of ESM, the attachment, proliferation and spreading of PC12 cells cultured on the ESM:PCLF scaffolds were evaluated. Results revealed that the number of cells attached on double network ESM:PCLF scaffold were nearly similar to ESM and significantly higher than that of on the tissue culture plate (2.6 times) and PCLF film (1.7 times). It is envisioned that the offered ESM:PCLF double network scaffold might have great potential to develop the constructs for nerve regeneration.
[Mh] Termos MeSH primário: Tecido Nervoso/fisiologia
Engenharia Tecidual
Tecidos Suporte/química
[Mh] Termos MeSH secundário: Animais
Materiais Biocompatíveis/síntese química
Materiais Biocompatíveis/química
Materiais Biocompatíveis/farmacologia
Membrana Celular/química
Movimento Celular/efeitos dos fármacos
Proliferação Celular/efeitos dos fármacos
Sobrevivência Celular/efeitos dos fármacos
Casca de Ovo
Interações Hidrofóbicas e Hidrofílicas
Microscopia Eletrônica de Varredura
Regeneração Nervosa/efeitos dos fármacos
Células PC12
Poliésteres/química
Ratos
Espectroscopia de Infravermelho com Transformada de Fourier
Raios Ultravioleta
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biocompatible Materials); 0 (Polyesters); 0 (poly(caprolactone fumarate))
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE
[do] DOI:10.1088/1758-5090/aa68ed


  3 / 1934 MEDLINE  
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[PMID]:29254927
[Au] Autor:Guangqi L; Congjiao S; Guiqin W; Fengying S; Aiqiao L; Hao S; Ning Y
[Ad] Endereço:1. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; 2. Beijing Huadu Yukou Poultry Industry Co. Ltd., Beijing 101206, China.
[Ti] Título:Transcriptome sequencing identifies potential regulatory genes involved in chicken eggshell brownness.
[So] Source:Yi Chuan;39(11):1102-1111, 2017 Nov 20.
[Is] ISSN:0253-9772
[Cp] País de publicação:China
[La] Idioma:eng
[Ab] Resumo:Brown eggs are popular in many countries, and consumers regard eggshell brownness as an important indicator of egg quality. Brown eggshell color is controlled by polygene. However, the responsible genes and detailed molecular mechanisms regulating eggshell brownness have not been defined. In the present study, we applied the RNA-seq technology to analyze the transcriptome data of the shell gland epithelium of hens and investigated the candidate genes associated with eggshell brownness. The results indicated that 8461 genes were expressed in the shell gland epithelium, of which 34 genes were differentially expressed in hens laying dark vs. light brown eggs. Functional analysis revealed that two genes, ovotransferrin (TF) and heat-shock protein 70 (HSP70), as well as the oxidative phosphorylation pathway were involved in the synthesis and transport of protoporphyrin â…¨, which might influence the formation of eggshell brownness and result in different shades of brown.
[Mh] Termos MeSH primário: Galinhas/genética
Casca de Ovo
Genes Reguladores/fisiologia
Transcriptoma
[Mh] Termos MeSH secundário: Animais
Cor
Conalbumina/fisiologia
Proteínas de Choque Térmico HSP70/fisiologia
Protoporfirinas/metabolismo
Análise de Sequência de RNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (HSP70 Heat-Shock Proteins); 0 (Protoporphyrins); 1391-06-6 (Conalbumin); C2K325S808 (protoporphyrin IX)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171220
[St] Status:MEDLINE
[do] DOI:10.16288/j.yczz.17-111


  4 / 1934 MEDLINE  
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[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


  5 / 1934 MEDLINE  
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[PMID]:29294204
[Au] Autor:Yang C; Huang Q; Wang L; Du WG; Liang W; Møller AP
[Ad] Endereço:Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China.
[Ti] Título:Keeping eggs warm: thermal and developmental advantages for parasitic cuckoos of laying unusually thick-shelled eggs.
[So] Source:Naturwissenschaften;105(1-2):10, 2018 Jan 02.
[Is] ISSN:1432-1904
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Obligate brood parasites have evolved unusually thick-shelled eggs, which are hypothesized to possess a variety of functions such as resistance to puncture ejection by their hosts. In this study, we tested the hypothesis that obligate brood parasites lay unusually thick-shelled eggs to retain more heat for the developing embryo and thus contribute to early hatching of parasite eggs. By doing so, we used an infrared thermal imaging system as a non-invasive method to quantify the temperature of eggshells of common cuckoos (Cuculus canorus) and their Oriental reed warbler (Acrocephalus orientalis) hosts in an experiment that artificially altered the duration of incubation. Our results showed that cuckoo eggshells had higher temperature than host eggs during incubation, but also less fluctuations in temperature during incubation disturbance. Therefore, there was a thermal and hence a developmental advantage for brood parasitic cuckoos of laying thick-shelled eggs, providing another possible explanation for the unusually thick-shelled eggs of obligate brood parasites and earlier hatching of cuckoo eggs compared to those of the host.
[Mh] Termos MeSH primário: Evolução Biológica
Aves/anatomia & histologia
Regulação da Temperatura Corporal
Casca de Ovo/anatomia & histologia
[Mh] Termos MeSH secundário: Animais
Aves/embriologia
Aves/fisiologia
Interações Hospedeiro-Parasita
Reprodução
Aves Canoras/parasitologia
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[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:180103
[St] Status:MEDLINE
[do] DOI:10.1007/s00114-017-1532-y


  6 / 1934 MEDLINE  
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[PMID]:28469027
[Au] Autor:Cedillo-Leal C; Simoncini MS; Leiva PML; Larriera A; Lang JW; Piña CI
[Ad] Endereço:Instituto de Ecología Aplicada, Universidad Autónoma de Tamaulipas, Ciudad Victoria, Mexico.
[Ti] Título:Eggshell structure in eggs improves embryo survival during nest inundation.
[So] Source:Proc Biol Sci;284(1854), 2017 May 17.
[Is] ISSN:1471-2954
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Egg inundation often results in poor hatching success in crocodylians. However, how tolerant eggs are to submergence, and/or how eggshell ultrastructure may affect embryo survival when inundated, are not well understood. In this study, our objective was to determine if embryo survival in is affected by eggshell surface roughness, when eggs are submerged under water. Tolerance to inundation was tested early (day 30) versus late (day 60) in development, using eight clutches (four per time treatments), subdivided into four groups: ( = 9 per clutch per treatment; 9 × 4 = 36 eggs per group). 'Rough' eggshell represented the natural, unmodified eggshell surface structure. 'Smooth' eggshell surface structure was created by mechanically sanding the natural rough surface to remove surface columnar elements and secondary layer features, e.g. irregularities that result in 'roughness'. When inundated by submerging eggs under water for 10 h at day 30, 'smooth' eggshell structure resulted in more than twice as many dead embryos (16 versus 6, smooth versus rough; = 36), and fewer than half as many healthy embryos (6 versus 13, smooth versus rough, respectively; = 36). By contrast, at day 60, inundation resulted in very low hatching success, regardless of eggshell surface structure. Only two hatchlings survived the inundation, notably in the untreated group with intact, rough eggshells. Inundation produced a high rate of malformations (58% at day 30), but did not affect hatchling size. Our results indicate that eggshell roughness enhances embryo survival when eggs are inundated early in development, but not late in development. Apparently, the natural surface 'roughness' entraps air bubbles at the eggshell surface during inundation, thereby facilitating gas exchange through the eggshell even when the egg is submerged under water.
[Mh] Termos MeSH primário: Jacarés e Crocodilos
Casca de Ovo/fisiologia
[Mh] Termos MeSH secundário: Animais
Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
059QF0KO0R (Water)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180131
[Lr] Data última revisão:
180131
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170505
[St] Status:MEDLINE


  7 / 1934 MEDLINE  
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[PMID]:28452029
[Au] Autor:Guo Z; Li J; Guo Z; Guo Q; Zhu B
[Ad] Endereço:School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, People's Republic of China.
[Ti] Título:Phosphorus removal from aqueous solution in parent and aluminum-modified eggshells: thermodynamics and kinetics, adsorption mechanism, and diffusion process.
[So] Source:Environ Sci Pollut Res Int;24(16):14525-14536, 2017 Jun.
[Is] ISSN:1614-7499
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Parent and aluminum-modified eggshells were prepared and characterized with X-ray diffraction, specific surface area measurements, infrared spectroscopy, zeta potential, and scanning electron microscope, respectively. Besides, phosphorus adsorptions in these two eggshells at different temperatures and solution pH were carried out to study adsorption thermodynamics and kinetics as well as the mechanisms of phosphorus adsorption and diffusion. The results indicated that high temperature was favorable for phosphorus adsorption in parent and aluminum-modified eggshells. Alkaline solution prompted phosphorus adsorption in parent eggshell, while the maximum adsorption amount was achievable at pH 4 in aluminum-modified eggshell. Adsorption isotherms of phosphorus in these eggshells could be well described by Langmuir and Freundlich models. Phosphorus adsorption amounts in aluminum-modified eggshell were markedly higher compared to those in parent eggshell. Adsorption heat indicated that phosphorus adsorption in parent eggshell was a typically physical adsorption process, while chemical adsorption mechanism of ion exchange between phosphorus and hydroxyl groups on the surface of eggshells was dominated in aluminum-modified eggshell. The time-resolved uptake curves showed phosphorus adsorption in aluminum-modified eggshell was significantly faster than that in parent eggshell. Moreover, there existed two clear steps in time-resolved uptake curves of phosphorus in parent eggshell. Based on pseudo-second order kinetic model and intraparticle diffusion model, we inferred more than one process affected phosphorus adsorption. The first process was the diffusion of phosphorus through water to external surface and the opening of pore channel in the eggshells, and the second process was mainly related to intraparticle diffusion.
[Mh] Termos MeSH primário: Alumínio/química
Casca de Ovo/química
Fósforo/química
Purificação da Água/métodos
[Mh] Termos MeSH secundário: Adsorção
Animais
Concentração de Íons de Hidrogênio
Cinética
Termodinâmica
Poluentes Químicos da Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Water Pollutants, Chemical); 27YLU75U4W (Phosphorus); CPD4NFA903 (Aluminum)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180103
[Lr] Data última revisão:
180103
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE
[do] DOI:10.1007/s11356-017-9072-8


  8 / 1934 MEDLINE  
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[PMID]:28961275
[Au] Autor:Bomfim L; Vieira P; Fonseca A; Ramos I
[Ad] Endereço:Laboratório de bioquímica de insetos, Universidade Federal do Rio de Janeiro Instituto de Bioquímica Médica Leopoldo de Meis, Rio de Janeiro, Brazil.
[Ti] Título:Eggshell ultrastructure and delivery of pharmacological inhibitors to the early embryo of R. prolixus by ethanol permeabilization of the extraembryonic layers.
[So] Source:PLoS One;12(9):e0185770, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Most vectors of arthropod-borne diseases produce large eggs with hard and opaque eggshells. In several species, it is still not possible to induce molecular perturbations to the embryo by delivery of molecules using microinjections or eggshell permeabilization without losing embryo viability, which impairs basic studies regarding development and population control. Here we tested the properties and permeability of the eggshell of R. prolixus, a Chagas disease vector, with the aim to deliver pharmacological inhibitors to the egg cytoplasm and allow controlled molecular changes to the embryo. Using field emission scanning and transmission electron microscopy we found that R. prolixus egg is coated by three main layers: exochorion, vitelline layer and the plasma membrane, and that the pores that allow gas exchange (aeropiles) have an average diameter of 10 µm and are found in the rim of the operculum at the anterior pole of the egg. We tested if different solvents could permeate through the aeropiles and reach the egg cytoplasm/embryo and found that immersions of the eggs in ethanol lead to its prompt penetration through the aeropiles. A single five minute-immersion of the eggs/embryos in pharmacological inhibitors, such as azide, cyanide and cycloheximide, solubilized in ethanol resulted in impairment of embryogenesis in a dose dependent manner and DAPI-ethanol solutions were also able to label the embryo cells, showing that ethanol penetration was able to deliver those molecules to the embryo cells. Multiple immersions of the embryo in the same solutions increased the effect and tests using bafilomycin A1 and Pepstatin A, known inhibitors of the yolk proteolysis, were also able to impair embryogenesis and the yolk protein degradation. Additionally, we found that ethanol pre-treatments of the egg make the aeropiles more permeable to aqueous solutions, so drugs diluted in water can be carried after the eggs are pre-treated with ethanol. Thus, we found that delivery of pharmacological inhibitors to the embryo of R. prolixus can be performed simply by submersing the fertilized eggs in ethanol with no need for additional methods such as microinjections or electroporation. We discuss the potential importance of this methodology to the study of this vector developmental biology and population control.
[Mh] Termos MeSH primário: Casca de Ovo
Embrião não Mamífero/efeitos dos fármacos
Etanol/farmacologia
Rhodnius/embriologia
[Mh] Termos MeSH secundário: Animais
Vetores Artrópodes
Eletroforese em Gel de Poliacrilamida
Microscopia Eletrônica de Varredura
Microscopia Eletrônica de Transmissão
Permeabilidade
Rhodnius/parasitologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
3K9958V90M (Ethanol)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171103
[Lr] Data última revisão:
171103
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170930
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185770


  9 / 1934 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


  10 / 1934 MEDLINE  
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[PMID]:28891020
[Au] Autor:Dolci NN; Sá F; da Costa Machado E; Krul R; Rodrigues Neto R
[Ad] Endereço:Center of Marine Studies, Federal University of Paraná, Beira-Mar Avenue, Mailboxl 50.002, Pontal do Sul, Pontal do Paraná, PR, 83255976, Brazil. natidolcii@gmail.com.
[Ti] Título:Trace elements in feathers and eggshells of brown booby Sula leucogaster in the Marine National Park of Currais Islands, Brazil.
[So] Source:Environ Monit Assess;189(10):496, 2017 Sep 10.
[Is] ISSN:1573-2959
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Levels of trace elements were investigated in feathers of 51 adults and 47 eggshells of brown boobies Sula leucogaster from one bird colony in the Marine National Park of Currais Islands, Brazil, between December 2013 and October 2014. Average concentrations (µg g , dry weight) in feathers and eggshells, respectively, were Al 50.62-9.58, As 0.35-2.37, Cd 0.05-0.03, Co 0.38-2.1, Cu 15.12-0.99, Fe 47.47-22.92, Mg 815.71-1116.92, Ni 0.29-11.85, and Zn 94.16-1.98. In both arrays, the average concentration of Mg was the highest among all the elements analyzed, while the lowest was recorded for Cd. As and Ni presented levels at which biological impacts might occur. Zn concentrations were higher than those considered normal in other organs. Levels of Al, Fe, Cu, Zn, and Cd were higher in feathers, whereas higher contents of Mg, Co, Ni, and As occurred in eggshells. The comparison between the elements in eggshells collected at different seasons showed no significant difference (p > 0.05) due, probably, to the lack of temporal variation on foraging behavior and/or on bioavailability of trace elements. Metals and arsenic in feathers and eggshells were mostly not correlated. Future studies on Paraná coast should focus on the speciation of the elements, especially As, Ni, and Zn, which proved to be a possible problem for the environment and biota. It is necessary to investigate both matrices, shell and internal contents of the eggs, in order to verify if the differences previously reported in other studies also occur in eggs of brown boobies in the Marine National Park of Currais Islands.
[Mh] Termos MeSH primário: Arsênico/análise
Aves/metabolismo
Casca de Ovo/química
Plumas/química
Metais/análise
Oligoelementos/análise
[Mh] Termos MeSH secundário: Análise de Variância
Animais
Brasil
Monitoramento Ambiental
Ilhas
Parques Recreativos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Metals); 0 (Trace Elements); N712M78A8G (Arsenic)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171113
[Lr] Data última revisão:
171113
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170912
[St] Status:MEDLINE
[do] DOI:10.1007/s10661-017-6190-1



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