共查询到20条相似文献,搜索用时 15 毫秒
1.
Background
Whether MHC molecules undergo concerted evolution or not has been the subject of a long-standing debate. 相似文献2.
Masaaki Tanaka Norihiro Sadato Tomohisa Okada Kei Mizuno Tetsuya Sasabe Hiroki C Tanabe Daisuke N Saito Hirotaka Onoe Hirohiko Kuratsune Yasuyoshi Watanabe 《BMC neurology》2006,6(1):9
Background
Although the neural mechanism of chronic fatigue syndrome has been investigated by a number of researchers, it remains poorly understood. 相似文献3.
Jin-Xiang Yuan Li-Juan Xiao Cui-Ling Lu Xue-Sen Zhang Tao Liu Min Chen Zhao-Yuan Hu Fei Gao Yi-Xun Liu 《Reproductive biology and endocrinology : RB&E》2009,7(1):23-10
Background
Heat shock proteins (Hsps) are a set of highly conserved proteins, Hsp105, has been suggested to play a role in reproduction. 相似文献4.
Goang-Won Cho Seung Min Shin Hyun Kee Kim Seon-Ah Ha Sanghee Kim Joo-Hee Yoon Soo Young Hur Tae Eung Kim Jin Woo Kim 《BMC cell biology》2007,8(1):50
Background
The Human cervical cancer oncogene (HCCR-1) has been isolated as a human oncoprotein, and has shown strong tumorigenic features. Its potential role in tumorigenesis may result from a negative regulation of the p53 tumor suppressor gene. 相似文献5.
Francesconi G Francesconi do Valle AC Passos SL de Lima Barros MB de Almeida Paes R Curi AL Liporage J Porto CF Galhardo MC 《Mycopathologia》2011,171(5):349-354
Abstract
Itraconazole is currently used for the treatment of cutaneous sporotrichosis. Terbinafine at a daily dose of 250 mg has been successfully applied to the treatment of cutaneous sporotrichosis. 相似文献6.
Ryoji Takahashi Joseph G Dubouzet Hisakazu Matsumura Kentaro Yasuda Tsukasa Iwashina 《BMC plant biology》2010,10(1):155
Background
Glycine soja is a wild relative of soybean that has purple flowers. No flower color variant of Glycine soja has been found in the natural habitat. 相似文献7.
Background
The wide variety of real-time amplification platforms currently available has determined that standardisation of DNA measurements is a fundamental aspect involved in the comparability of results. 相似文献8.
Katerina Michalickova Gary D Bader Michel Dumontier Hao Lieu Doron Betel Ruth Isserlin Christopher WV Hogue 《BMC bioinformatics》2002,3(1):32-13
Background
SeqHound has been developed as an integrated biological sequence, taxonomy, annotation and 3-D structure database system. It provides a high-performance server platform for bioinformatics research in a locally-hosted environment. 相似文献9.
Background
Due to controversially discussed results in scientific literature concerning changes of electrical skin impedance before and during acupuncture a new measurement system has been developed. 相似文献10.
Background
Integrin-linked kinase (ILK) is a ubiquitously expressed protein kinase that has emerged as one of the points of convergence between integrin- and growth factor-signalling pathways. 相似文献11.
A. Cadiere B. Couturaud J. Boismard P. Le Cann A. Gérard A. Mas C. Faye L. Garrelly B. Roig 《Journal of applied microbiology》2013,115(1):290-297
Aims
Virus detection has often been difficult due to a low concentration in water. In this study, we developed a new procedure based on concentration of virus particles on an innovative support: poly‐l ‐lysine dendrigrafts (DGL), coupled with directed nucleic acid extraction and real‐time PCR quantification.Methods and Results
This method was evaluated using the bacteriophage MS2 as a model virus. This virus exhibited the size and structural properties of human pathogenic enteric viruses and has often been used to assess new supports of concentration. Moreover, this bacteriophage is also a faecal contamination indicator. In this study, many water filtration conditions were tested (volume of water, concentration, etc.), and more than 80% of bacteriophage were recovered after filtration on polymer, in most conditions. We demonstrated that the method was linear (slope = 0·99 ± 0·04 and Y intercept when x = ?0·02 ± 0·28), valid (as manipulators, tested concentrations, volumes of sample and batch of polymer did not have any influence on concentration) and sensitive (allowing to concentrate up to 16 600‐fold 1 l of sample and to detect and quantify down to 750 GC l?1 and 7500 GC l?1, respectively).Conclusions
To conclude, this support exhibits high interest to retain viruses and to allow to detect low concentration of virus in water.Significance and Impact of the Study
This study gives valuable advance in the methods of concentration and diagnosis of virus in water. 相似文献12.
CNV-seq, a new method to detect copy number variation using high-throughput sequencing 总被引:2,自引:0,他引:2
Background
DNA copy number variation (CNV) has been recognized as an important source of genetic variation. Array comparative genomic hybridization (aCGH) is commonly used for CNV detection, but the microarray platform has a number of inherent limitations. 相似文献13.
First evidence of bacterial translocation from the intestinal tract as a route of Helicobacter cinaedi bacteremia
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Hideki Araoka Masaru Baba Chikako Okada Muneyoshi Kimura Tomoaki Sato Yutaka Yatomi Kyoji Moriya Akiko Yoneyama 《Helicobacter》2018,23(1)
Background
The route of Helicobacter cinaedi bacteremia has not yet been clarified. Although bacterial translocation from the intestinal tract into the circulation has been suggested, it has not been demonstrated thus far. The objective of this study was to investigate the port of entry of this bacterium.Material and Methods
We conducted a retrospective study on patients with H. cinaedi bacteremia between March 2009 and May 2013. Records of patients in whom H. cinaedi was detected in both blood and stool cultures were extracted. H. cinaedi was identified using gyrB‐targeted PCR. Pulse‐field gel electrophoresis was used to investigate the consistency of the genotypes.Results
Seventy‐one patients were diagnosed with H. cinaedi bacteremia during the study period. H. cinaedi was detected in both blood and stool samples of 21 patients. Pulse‐field gel electrophoresis was used to investigate the consistency of the genotypes in 18 evaluable strains (from 9 patients). The pulse‐field gel electrophoresis patterns of the stool‐ and blood‐derived strains of H. cinaedi were consistent among all 9 patients. Most of the 9 patients analyzed were immunocompromised and being treated with anticancer drugs or steroids, which suggests reduced intestinal immunity.Conclusions
This is the first study to demonstrate that bacterial translocation from the intestinal tract could represent one route of H. cinaedi bacteremia. 相似文献14.
Background
Determining the complete repertoire of protein structures for all soluble, globular proteins in a single organism has been one of the major goals of several structural genomics projects in recent years. 相似文献15.
Segal NA Harvey W Felson DT Yang M Torner JC Curtis JR Nevitt MC;Multicenter Osteoarthritis Study Group 《Arthritis research & therapy》2008,10(3):R62
Introduction
Greater trochanteric pain syndrome (GTPS) is a common condition, the pathogenesis of which is incompletely understood. Although leg-length inequality has been suggested as a potential risk factor for GTPS, this widely held assumption has not been tested. 相似文献16.
Ursum J Nielen MM van Schaardenburg D van der Horst AR van de Stadt RJ Dijkmans BA Hamann D 《Arthritis research & therapy》2008,10(1):R12
Introduction
The aim of our study was to investigate the association between arthritic disease activity and antibodies to mutated citrullinated vimentin (anti-MCV), because such a relation has been suggested. 相似文献17.
Background
Cell adhesion has been shown to induce activation of certain growth factor receptors in a ligand-independent manner. However, the mechanism for such activation remains obscure. 相似文献18.
Kellie J Archer Catherine I Dumur G Scott Taylor Michael D Chaplin Anthony Guiseppi-Elie Geraldine Grant Andrea Ferreira-Gonzalez Carleton T Garrett 《BMC bioinformatics》2007,8(1):447
Background
Recent research examining cross-platform correlation of gene expression intensities has yielded mixed results. In this study, we demonstrate use of a correction factor for estimating cross-platform correlations. 相似文献19.
M.P. Sangorrín V. García C.A. Lopes J.S. Sáez C. Martínez M.A. Ganga 《Journal of applied microbiology》2013,114(4):1066-1074
Aims
Dekkera bruxellensis and Pichia guilliermondii are contaminating yeasts in wine due to the production of phenolic aromas. Although the degradation pathway of cinnamic acids, precursors of these phenolic compounds has been described in D. bruxellensis, no such pathway has been described in P. guilliermondii.Methods and Results
A molecular and physiological characterization of 14 D. bruxellensis and 15 P. guilliermondii phenol‐producing strains was carried out. Both p‐coumarate decarboxylase (CD) and vinyl reductase (VR) activities, responsible for the production of volatile phenols, were quantified and the production of 4‐vinylphenol and 4‐ethylphenol were measured. All D. bruxellensis and some P. guilliermondii strains showed the two enzymatic activities, whilst 11 of the 15 strains of this latter species showed only CD activity and did not produce 4‐EP in the assay conditions. Furthermore, PCR products obtained with degenerated primers showed a low homology with the sequence of the gene for a phenyl acrylic acid decarboxylase activity described in Saccharomyces cerevisiae.Conclusions
D. bruxellensis and P. guilliermondii may share a similar metabolic pathway for the degradation of cinnamic acids.Significance and Impact of the Study
This is the first work that analyses the CD and VR activities in P. guilliermondii, and the results suggest that within this species, there are differences in the metabolization of cinnamic acids. 相似文献20.
Maria A Mariggio Giovanna Mazzoleni Tiziana Pietrangelo Simone Guarnieri Caterina Morabito Nathalie Steimberg Giorgio Fano 《BMC physiology》2001,1(1):4-15