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  1 / 200373 MEDLINE  
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[PMID]:29320823
[Au] Autor:Shin J; Ahn KS; Suh GH; Kim HJ; Jeong HS; Kim BS; Choi E; Shin SS
[Ad] Endereço:Department of Parasitology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea.
[Ti] Título:First Blindness Cases of Horses Infected with Setaria Digitata (Nematoda: Filarioidea) in the Republic of Korea.
[So] Source:Korean J Parasitol;55(6):667-671, 2017 Dec.
[Is] ISSN:1738-0006
[Cp] País de publicação:Korea (South)
[La] Idioma:eng
[Ab] Resumo:Ocular setariases of cattle were reported but those of equine hosts have never been reported in the Republic of Korea (Korea). We found motile worms in the aqueous humor of 15 horses (Equus spp.) from 12 localities in southern parts of Korea between January 2004 and November 2017. After the affected animals were properly restrained under sedation and local anesthesia, 10 ml disposable syringe with a 16-gauge needle was inserted into the anterior chamber of the affected eye to successfully remove the parasites. The male worm that was found in 7 of the cases showed a pair of lateral appendages near the posterior terminal end of the body. The papillar arrangement was 3 pairs of precloacal, a pair of adcloacal, and 3 pairs of postcloacal papillae, plus a central papilla just in front of the cloaca. The female worms found in the eyes of 8 horses were characterized by the tapering posterior terminal end of the body with a smooth knob. Worms were all identified as Setaria digitata (von Linstow, 1906) by the morphologic characteristics using light and electron microscopic observations. This is the first blindness cases of 15 horses infected with S. digitata (Nematoda: Filarioidea) in Korea.
[Mh] Termos MeSH primário: Cegueira/etiologia
Cegueira/veterinária
Doenças dos Cavalos/etiologia
Doenças dos Cavalos/parasitologia
Cavalos
Procedimentos Cirúrgicos Oftalmológicos/veterinária
Setaria (Nematoide)/isolamento & purificação
Setaríase/complicações
Setaríase/parasitologia
[Mh] Termos MeSH secundário: Animais
Cegueira/cirurgia
Feminino
Doenças dos Cavalos/cirurgia
Masculino
Microscopia Eletrônica
Procedimentos Cirúrgicos Oftalmológicos/métodos
República da Coreia
Setaria (Nematoide)/anatomia & histologia
Setaria (Nematoide)/ultraestrutura
Setaríase/cirurgia
[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:180112
[St] Status:MEDLINE
[do] DOI:10.3347/kjp.2017.55.6.667


  2 / 200373 MEDLINE  
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[PMID]:29203735
[Au] Autor:Shaprynskyi VO; Shaprinskiy YV; Karyi YV; Lysenko SA
[Ad] Endereço:Vinnitsa National Pirogov Memorial Medical University, Vinnitsa, Ukraine.
[Ti] Título:Histomorphologic changes of esophageal mucosa in experimental third degree stricture.
[So] Source:Wiad Lek;70(5):891-894, 2017.
[Is] ISSN:0043-5147
[Cp] País de publicação:Poland
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: Nowadays the level of early and late complications after the operations for esophageal corrosive strictures such as esophago-organ anastomotic leak, development of infections, pneumonia, pleural empyema, mediastinitis, peritonitis, postoperative corrosive stricture development etc. remains rather high. Besides, postoperative mortality rate is high as well - 3.5-30 %. For that reason, an experimental model of esophageal stricture was suggested and ultrastructural mucosal changes in the stricture itself were studied to elaborate the unified pathogenic approach in treatment of esophageal stricture and improvement of its results. The aim of our work was to study the dynamics of ultrastructural changes both in normal esophageal walls and in third degree esophageal stricture Materials and Methods: The experiment was carried out on white male rats weighting 250-300 grams, to whom the third degree esophageal stricture model was created. After layer-by-layer incision of anterior abdominal wall abdominal portion of the esophagus was completely ligated (10 rats). In the control group (6 rats) anterior abdominal wall was opened with its subsequent layered closure. The animals were withdrawn from the experiment on the third day by ketamine overdose, and the samples were taken for ultrastructural study. RESULTS: Electron microscopic study of submicroscopic organization of basal, prickle, superficial epithelial cells in stratified non-squamous epithelium, smooth myocytes of muscle plate and contractile elements in esophageal muscular layer was carried out. Nuclear membrane, membranes of mitochondria, endoplasmic reticulum and cytoplasmic Golgi complex were found to be subjected to focal lysis. The third degree esophageal stricture caused destructive lesions in ultrastructural architectonics of stratified non-squamous epithelium cells, smooth myocytes of muscle plate and contractile elements in esophageal muscular layer of rats. CONCLUSION: Thus, catabolic processes leading to organelle disintegration develop in esophageal cells of rats with third degree stricture.
[Mh] Termos MeSH primário: Mucosa Esofágica/ultraestrutura
Estenose Esofágica/patologia
Esôfago/ultraestrutura
[Mh] Termos MeSH secundário: Animais
Constrição Patológica/patologia
Modelos Animais de Doenças
Mucosa Esofágica/patologia
Esôfago/patologia
Masculino
Microscopia Eletrônica
Ratos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[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:171206
[St] Status:MEDLINE


  3 / 200373 MEDLINE  
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[PMID]:28466070
[Au] Autor:Sabbah S; Berg D; Papendorp C; Briggman KL; Berson DM
[Ad] Endereço:Department of Neuroscience, Brown University, Providence, RI 02912.
[Ti] Título:A Cre Mouse Line for Probing Irradiance- and Direction-Encoding Retinal Networks.
[So] Source:eNeuro;4(2), 2017 Mar-Apr.
[Is] ISSN:2373-2822
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Cell type-specific Cre driver lines have revolutionized the analysis of retinal cell types and circuits. We show that the transgenic mouse Rbp4-Cre selectively labels several retinal neuronal types relevant to the encoding of absolute light intensity (irradiance) and visual motion. In the ganglion cell layer (GCL), most marked cells are wide-field spiking polyaxonal amacrine cells (ACs) with sustained irradiance-encoding ON responses that persist during chemical synaptic blockade. Their arbors spread about 1 mm across the retina and are restricted to the inner half of the ON sublamina of the inner plexiform layer (IPL). There, they costratify with dendrites of M2 intrinsically photosensitive retinal ganglion cells (ipRGCs), to which they are tracer coupled. We propose that synaptically driven and intrinsic photocurrents of M2 cells pass through gap junctions to drive AC light responses. Also marked in this mouse are two types of RGCs. R-cells have a bistratified dendritic arbor, weak directional tuning, and irradiance-encoding ON responses. However, they also receive excitatory OFF input, revealed during ON-channel blockade. Serial blockface electron microscopic (SBEM) reconstruction confirms OFF bipolar input, and reveals that some OFF input derives from a novel type of OFF bipolar cell (BC). R-cells innervate specific layers of the dorsal lateral geniculate nucleus (dLGN) and superior colliculus (SC). The other marked RGC type (RDS) is bistratified, transient, and ON-OFF direction selective (DS). It apparently innervates the nucleus of the optic tract (NOT). The Rbp4-Cre mouse will be valuable for targeting these cell types for further study and for selectively manipulating them for circuit analysis.
[Mh] Termos MeSH primário: Rede Nervosa/fisiologia
Retina/fisiologia
Sinapses/fisiologia
Vias Visuais/fisiologia
[Mh] Termos MeSH secundário: Animais
Dendritos/metabolismo
Camundongos Transgênicos
Microscopia Eletrônica
Células Ganglionares da Retina/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[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:170504
[St] Status:MEDLINE


  4 / 200373 MEDLINE  
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[PMID]:28453669
[Au] Autor:Hanslovsky P; Bogovic JA; Saalfeld S
[Ad] Endereço:HHMI Janelia Research Campus, Ashburn, VA 20147, USA.
[Ti] Título:Image-based correction of continuous and discontinuous non-planar axial distortion in serial section microscopy.
[So] Source:Bioinformatics;33(9):1379-1386, 2017 05 01.
[Is] ISSN:1367-4811
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Motivation: Serial section microscopy is an established method for detailed anatomy reconstruction of biological specimen. During the last decade, high resolution electron microscopy (EM) of serial sections has become the de-facto standard for reconstruction of neural connectivity at ever increasing scales (EM connectomics). In serial section microscopy, the axial dimension of the volume is sampled by physically removing thin sections from the embedded specimen and subsequently imaging either the block-face or the section series. This process has limited precision leading to inhomogeneous non-planar sampling of the axial dimension of the volume which, in turn, results in distorted image volumes. This includes that section series may be collected and imaged in unknown order. Results: We developed methods to identify and correct these distortions through image-based signal analysis without any additional physical apparatus or measurements. We demonstrate the efficacy of our methods in proof of principle experiments and application to real world problems. Availability and Implementation: We made our work available as libraries for the ImageJ distribution Fiji and for deployment in a high performance parallel computing environment. Our sources are open and available at http://github.com/saalfeldlab/section-sort, http://github.com/saalfeldlab/z-spacing and http://github.com/saalfeldlab/z-spacing-spark. Contact: saalfelds@janelia.hhmi.org. Supplementary information: Supplementary data are available at Bioinformatics online.
[Mh] Termos MeSH primário: Algoritmos
Metodologias Computacionais
Interpretação de Imagem Assistida por Computador/métodos
Microscopia Eletrônica/métodos
[Mh] Termos MeSH secundário: Animais
Sistema Nervoso Central/anatomia & histologia
Drosophila melanogaster/anatomia & histologia
Microtomia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1801
[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:10.1093/bioinformatics/btw794


  5 / 200373 MEDLINE  
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[PMID]:28453664
[Au] Autor:Krag TO; Ruiz-Ruiz C; Vissing J
[Ad] Endereço:Copenhagen Neuromuscular Center, Department of Neurology, Rigshospitalet, University of Copenhagen, 2100 Copenhagen, Denmark.
[Ti] Título:Glycogen Synthesis in Glycogenin 1-Deficient Patients: A Role for Glycogenin 2 in Muscle.
[So] Source:J Clin Endocrinol Metab;102(8):2690-2700, 2017 Aug 01.
[Is] ISSN:1945-7197
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Context: Glycogen storage disease (GSD) type XV is a rare disease caused by mutations in the GYG1 gene that codes for the core molecule of muscle glycogen, glycogenin 1. Nonetheless, glycogen is present in muscles of glycogenin 1-deficient patients, suggesting an alternative for glycogen buildup. A likely candidate is glycogenin 2, an isoform expressed in the liver and heart but not in healthy skeletal muscle. Objective: We wanted to investigate the formation of glycogen and changes in glycogen metabolism in patients with GSD type XV. Design, Setting, and Patients: Two patients with mutations in the GYG1 gene were investigated for histopathology, ultrastructure, and expression of proteins involved in glycogen synthesis and metabolism. Results: Apart from occurrence of polyglucosan (PG) bodies in few fibers, glycogen appeared normal in most cells, and the concentration was normal in patients with GSD type XV. We found that glycogenin 1 was absent, but glycogenin 2 was present in the patients, whereas the opposite was the case in healthy controls. Electron microscopy revealed that glycogen was present between and not inside myofibrils in type II fibers, compromising the ultrastructure of these fibers, and only type I fibers contained PG bodies. We also found significant changes to the expression levels of several enzymes directly involved in glycogen and glucose metabolism. Conclusions: To our knowledge, this is the first report demonstrating expression of glycogenin 2 in glycogenin 1-deficient patients, suggesting that glycogenin 2 rescues the formation of glycogen in patients with glycogenin 1 deficiency.
[Mh] Termos MeSH primário: Glucosiltransferases/genética
Glucosiltransferases/metabolismo
Glicogênio/biossíntese
Glicoproteínas/genética
Músculo Esquelético/metabolismo
[Mh] Termos MeSH secundário: Idoso
Metabolismo dos Carboidratos
Estudos de Casos e Controles
Feminino
Glucanos/metabolismo
Glucose/metabolismo
Glicogênio/metabolismo
Glicogênio/ultraestrutura
Doença de Depósito de Glicogênio/genética
Glicoproteínas/metabolismo
Seres Humanos
Microscopia Eletrônica
Meia-Idade
Fibras Musculares de Contração Rápida/ultraestrutura
Músculo Esquelético/patologia
Músculo Esquelético/ultraestrutura
Miofibrilas/ultraestrutura
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Glucans); 0 (Glycoproteins); 0 (glycogenin); 9005-79-2 (Glycogen); 9012-72-0 (polyglucosan); EC 2.4.1.- (Glucosyltransferases); EC 2.4.1.186 (GYG2 protein, human); IY9XDZ35W2 (Glucose)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE
[do] DOI:10.1210/jc.2017-00399


  6 / 200373 MEDLINE  
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[PMID]:29339755
[Au] Autor:Rout SK; Friedmann MP; Riek R; Greenwald J
[Ad] Endereço:Laboratory of Physical Chemistry, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland.
[Ti] Título:A prebiotic template-directed peptide synthesis based on amyloids.
[So] Source:Nat Commun;9(1):234, 2018 01 16.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The prebiotic replication of information-coding molecules is a central problem concerning life's origins. Here, we report that amyloids composed of short peptides can direct the sequence-selective, regioselective and stereoselective condensation of amino acids. The addition of activated DL-arginine and DL-phenylalanine to the peptide RFRFR-NH in the presence of the complementary template peptide Ac-FEFEFEFE-NH yields the isotactic product FRFRFRFR-NH , 1 of 64 possible triple addition products, under conditions in which the absence of template yields only single and double additions of mixed stereochemistry. The templating mechanism appears to be general in that a different amyloid formed by (Orn)V(Orn)V(Orn)V(Orn)V-NH and Ac-VDVDVDVDV-NH is regioselective and stereoselective for N-terminal, L-amino-acid addition while the ornithine-valine peptide alone yields predominantly sidechain condensation products with little stereoselectivity. Furthermore, the templating reaction is stable over a wide range of pH (5.6-8.6), salt concentration (0-4 M NaCl), and temperature (25-90 °C), making the amyloid an attractive model for a prebiotic peptide replicating system.
[Mh] Termos MeSH primário: Aminoácidos/química
Amiloide/química
Técnicas de Química Sintética/métodos
Peptídeos/química
[Mh] Termos MeSH secundário: Sequência de Aminoácidos
Aminoácidos/genética
Aminoácidos/metabolismo
Amiloide/metabolismo
Amiloide/ultraestrutura
Arginina/química
Arginina/genética
Arginina/metabolismo
Concentração de Íons de Hidrogênio
Microscopia Eletrônica
Origem da Vida
Biossíntese Peptídica/genética
Peptídeos/genética
Peptídeos/metabolismo
Fenilalanina/química
Fenilalanina/genética
Fenilalanina/metabolismo
Cloreto de Sódio/química
Estereoisomerismo
Temperatura Ambiente
Moldes Genéticos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Amino Acids); 0 (Amyloid); 0 (Peptides); 451W47IQ8X (Sodium Chloride); 47E5O17Y3R (Phenylalanine); 94ZLA3W45F (Arginine)
[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:180118
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02742-3


  7 / 200373 MEDLINE  
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[PMID]:29302033
[Au] Autor:Ignatenko O; Chilov D; Paetau I; de Miguel E; Jackson CB; Capin G; Paetau A; Terzioglu M; Euro L; Suomalainen A
[Ad] Endereço:Research Programs Unit, Molecular Neurology, Biomedicum Helsinki, Haartmaninkatu 8, University of Helsinki, Helsinki, 00014, Finland.
[Ti] Título:Loss of mtDNA activates astrocytes and leads to spongiotic encephalopathy.
[So] Source:Nat Commun;9(1):70, 2018 01 04.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Mitochondrial dysfunction manifests as different neurological diseases, but the mechanisms underlying the clinical variability remain poorly understood. To clarify whether different brain cells have differential sensitivity to mitochondrial dysfunction, we induced mitochondrial DNA (mtDNA) depletion in either neurons or astrocytes of mice, by inactivating Twinkle (TwKO), the replicative mtDNA helicase. Here we show that astrocytes, the most abundant cerebral cell type, are chronically activated upon mtDNA loss, leading to early-onset spongiotic degeneration of brain parenchyma, microgliosis and secondary neurodegeneration. Neuronal mtDNA loss does not, however, cause symptoms until 8 months of age. Findings in astrocyte-TwKO mimic neuropathology of Alpers syndrome, infantile-onset mitochondrial spongiotic encephalopathy caused by mtDNA maintenance defects. Our evidence indicates that (1) astrocytes are dependent on mtDNA integrity; (2) mitochondrial metabolism contributes to their activation; (3) chronic astrocyte activation has devastating consequences, underlying spongiotic encephalopathy; and that (4) astrocytes are a potential target for interventions.
[Mh] Termos MeSH primário: Astrócitos/metabolismo
Encefalopatias/genética
DNA Mitocondrial/genética
Doenças Mitocondriais/genética
[Mh] Termos MeSH secundário: Animais
Encéfalo/metabolismo
Encéfalo/ultraestrutura
DNA Helicases/genética
DNA Helicases/metabolismo
DNA Mitocondrial/metabolismo
Camundongos Knockout
Microscopia Eletrônica
Proteínas Mitocondriais/genética
Proteínas Mitocondriais/metabolismo
Mutação
Neurônios/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (DNA, Mitochondrial); 0 (Mitochondrial Proteins); EC 3.6.1.- (Peo1 protein, mouse); EC 3.6.4.- (DNA Helicases)
[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:180106
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-01859-9


  8 / 200373 MEDLINE  
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[PMID]:29316480
[Au] Autor:Smirnov A
[Ad] Endereço:Department of Invertebrate Zoology, Faculty of Biology, St. Petersburg State University, Universitetskaja nab. 7/9, 199034 St. Petersburg, Russia. Electronic address: alexey.smirnov@spbu.ru.
[Ti] Título:Fine structure of Leptomyxa ambigua n. sp. CCAP 1546/2 strain, formerly known as "Rhizamoeba flabellata" (Amoebozoa, Tubulinea, Leptomyxida).
[So] Source:Eur J Protistol;62:95-100, 2018 Feb.
[Is] ISSN:1618-0429
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The species Leptomyxa flabellata was described by Goodey in 1915 and re-isolated by Pussard and Pons in 1976. It seems that it was never seen (or never recognized) again since that time. The strain designated as "Leptomyxa flabellata CCAP 1546/2" was studied by Cann in 1984, however the quality of the electron microscopic images of that time was poor. Based on the cyst structure and size characters, Page in 1988 suggested that this strain is not co-specific with Goodey's Leptomyxa flabellata, but represents a species 'Ripidomyxa' australiensis Chakraborty and Pussard, 1985, nowadays known as Rhizamoeba australiensis. In the present paper light- and electron-microscopic images of CCAP 1546/2 strain, which is now lost, are provided. Based on the morphological evidences it is suggested to establish it in a rank of a new species, Leptomyxa ambigua n. sp. Neither "true" L. flabellata Goodey, 1915 nor original R. australiensis Chakraborty et Pussard, 1985 are nowadays represented in the culture collections, and no original type material is available on both these species.
[Mh] Termos MeSH primário: Lobosea/ultraestrutura
[Mh] Termos MeSH secundário: Lobosea/citologia
Microscopia Eletrônica
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180110
[St] Status:MEDLINE


  9 / 200373 MEDLINE  
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[PMID]:29308857
[Au] Autor:Nizyaeva NV; Sukhacheva TV; Kulikova GV; Nagovitsyna MN; Kan NE; Baev OR; Pavlovich SV; Serov RA; Shchegolev AI; Poltavtseva RA
[Ti] Título:Morphological Features of Mesenhymal Stroma Cells of Chorionic Villi.
[So] Source:Vestn Ross Akad Med Nauk;72(1):76-83, 2017.
[Is] ISSN:0869-6047
[Cp] País de publicação:Russia (Federation)
[La] Idioma:eng
[Ab] Resumo:Background: Nowadays autologous mesenchymal placental stromal cells (MSCs) may use to treat for various diseases both of the mother and the child. Stroma of the placenta villi is appropriated origin for cell culture isolation. Aim: of the study was to evaluate the possibility for selection and use of placental tissue for mesenchymal stromal cells. Materials and methods: The present study was based on 45 placental samples of women aged 27−38 yy. who underwent surgical delivery at 36−40 weeks of gestation. 30 of these women have been enrolled in the basic group including children with congenital abnormalities (CA). The comparison group consisted of 15 patients with physiological pregnancy. We performed histological examination (with hematoxylin and eosin staining), immunohistochemical examination (with use monoclonal antibodies CD90 (1:25; Abcam, UK), СD105 (1:500; Abcam, UK), CD44 (1:25; Dako), СD73 (1:200, Abcam, UK), and electron microscopy (by microscope Philips/FEI Corporation, Eindhoven, Holland). Eclipse 80i microscope (Nikon Corporation, Japan) was used to examine the immunohistochemical reactions as a brown staining. The evaluation of the intensity of reaction was conducted by NIS-Elements Advanced Research 3.2 program (Czech Republic). Student's t-test and analysis of variance were used to compare the mean values. Differences were considered statistically significant at p<0.05. Results: Interstitial cells of the stroma of the villi with CA had fibroblastic differentiation as revealed degenerative changes of the cells. The histologic examination with hematoxylin and eosin staining revealed significant fibrosis of the stroma of the placenta villi in CA group (p<0,01). Immunohistochemical study of stem and intermediate chorionic villi revealed no significant differences in staining of CD44+, СD90+, СD73+, and CD105+ cells if compared to the control group (p>0.05). Although CD105 expression was significantly lower in the CA group (0.058±0.0049) than in the control group (0.088±0.0039) (p<0.05). However, electron microscopy detected the villi interstitial stromal cells with fibroblastic differentiation in CA group. Conclusions: Thus, it is necessary to exclude placenta with obstetrical history, somatic, and congenital pathology of the mother and the child when selecting the placental cell culture. Moreover, choosing a sample the morphological structure of the placenta should be taken into consideration. However, congenital malformations of the fetus, pathology of the mother cultivate mesenchymal stromal cells of placentas is inappropriate and should be taken advantage of the donor cells.
[Mh] Termos MeSH primário: Vilosidades Coriônicas
Anormalidades Congênitas/diagnóstico
Seleção do Doador/métodos
Células Mesenquimais Estromais
Placenta/patologia
[Mh] Termos MeSH secundário: Adulto
Técnicas de Cultura de Células/métodos
Vilosidades Coriônicas/diagnóstico por imagem
Vilosidades Coriônicas/patologia
Amostra da Vilosidade Coriônica/métodos
Feminino
Fibrose
Seres Humanos
Imuno-Histoquímica
Transplante de Células-Tronco Mesenquimais/métodos
Células Mesenquimais Estromais/patologia
Microscopia Eletrônica/métodos
Gravidez
Estatística como Assunto
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180220
[Lr] Data última revisão:
180220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180109
[St] Status:MEDLINE
[do] DOI:10.15690/vramn767


  10 / 200373 MEDLINE  
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[PMID]:29208467
[Au] Autor:Aduri NG; Ernst HA; Prabhala BK; Bhatt S; Boesen T; Gajhede M; Mirza O
[Ad] Endereço:Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
[Ti] Título:Human proton coupled folic acid transporter is a monodisperse oligomer in the lauryl maltose neopentyl glycol solubilized state.
[So] Source:Biochem Biophys Res Commun;495(2):1738-1743, 2018 01 08.
[Is] ISSN:1090-2104
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The human proton coupled folic acid transporter PCFT is the major import route for dietary folates. Mutations in the gene encoding PCFT cause hereditary folic acid malabsorption, which manifests itself by compromised folate absorption from the intestine and also in impaired folate transport into the central nervous system. Since its recent discovery, PCFT has been the subject of numerous biochemical studies aiming at understanding its structure and mechanism. One major focus has been its oligomeric state, with some reports supporting oligomers and others a monomer. Here, we report the overexpression and purification of recombinant PCFT. Following detergent screening, n-Dodecyl ß-D-maltoside (DDM) and lauryl maltose neopentyl glycol (LMNG) were chosen for further work as they exhibited the most optimal solubilization. We found that purified detergent solubilized PCFT was able to bind folic acid, thus indicating a functionally active protein. Size exclusion chromatography showed that PCFT in DDM was polydisperse; the LMNG preparation was clearly monodisperse but with shorter retention time than the major DDM peak. To assess the oligomeric state negative stain electron microscopy was performed which showed a particle with the size of a PCFT dimer.
[Mh] Termos MeSH primário: Transportador de Folato Acoplado a Próton/química
[Mh] Termos MeSH secundário: Animais
Detergentes
Ácido Fólico/metabolismo
Glucosídeos
Glicóis
Seres Humanos
Ligantes
Microscopia Eletrônica
Modelos Moleculares
Multimerização Proteica
Estrutura Quaternária de Proteína
Transportador de Folato Acoplado a Próton/metabolismo
Transportador de Folato Acoplado a Próton/ultraestrutura
Proteínas Recombinantes/química
Proteínas Recombinantes/metabolismo
Proteínas Recombinantes/ultraestrutura
Células Sf9
Solubilidade
Spodoptera
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Detergents); 0 (Glucosides); 0 (Glycols); 0 (Ligands); 0 (Proton-Coupled Folate Transporter); 0 (Recombinant Proteins); 0 (SLC46A1 protein, human); 69227-93-6 (dodecyl maltoside); 935E97BOY8 (Folic Acid)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171207
[St] Status:MEDLINE



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