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Registros recuperados: 28
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Comparative Analysis of C-repeat Binding Factors (CBFs) in Tomato and Arabidopsis BABT
Heidari,Parviz.
Abstract Cold stress is one of the limiting factors of plant production that plants use different mechanisms for cold tolerance. CBF genes play critical role to regulate the cold responsive genes. To better understand of CBF gene functions, the tomato-CBFs and Arabidopsis-CBFs were evaluated using bioinformatics tools, and finally the expression patterns of SlCBF1 gene were analyzed under 10 and 4˚C in two contrasting tomato species (Solanum lycopersicum and S. habrochaites). The different cis regulatory elements were observed in promoter region of SlCBF1 and AtCBF1 genes, and ICE1, COR and HOS1 proteins exhibited high interaction with CBFs. The results of Real time PCR of SlCBF1 exhibited that under 10 and 4 ˚C, SlCBF1 was down regulated in cold sensitive...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cold stress; CBF genes; Real time PCR; Tomato; Bioinformatics analysis.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100208
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Early remodeling of rat cardiac muscle induced by swimming training BJMBR
Verzola,R.M.M.; Mesquita,R.A.; Peviani,S.; Ramos,O.H.P.; Moriscot,A.S.; Perez,S.E.A.; Selistre-de-Araújo,H.S..
The aim of the present investigation was to study the effect of acute swimming training with an anaerobic component on matrix metallopeptidase (MMP) activity and myosin heavy chain gene expression in the rat myocardium. Animals (male Wistar rats, weighing approximately 180 g) were trained for 6 h/day in 3 sessions of 2 h each for 1 to 5 consecutive days (N = 5 rats per group). Rats swam in basins 47 cm in diameter and 60 cm deep filled with water at 33 to 35ºC. After the training period a significant increase (P < 0.05) was observed in the heart weight normalized to body weight by about 22 and 35% in the groups that trained for 96 and 120 h, respectively. Blood lactate levels were significantly increased (P < 0.05) in all groups after all training...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Myosin heavy chain expression; Training; Real time PCR; Rat myocardium; Muscle hypertrophy.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000500009
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A cost-effective melting temperature assay for the detection of single-nucleotide polymorphism in the MBL2 gene of HIV-1-infected children BJMBR
Arraes,L.C.; de Souza,P.R.; Bruneska,D.; Castelo Filho,A.; de Souza Cavada,B.; de Lima Filho,J.L.; Crovella,S..
We report a fast (less than 3 h) and cost-effective melting temperature assay method for the detection of single-nucleotide polymorphisms in the MBL2 gene. The protocol, which is based on the Corbett Rotor Gene real time PCR platform and SYBR Green I chemistry, yielded, in the cohorts studied, sensitive (100%) and specific (100%) PCR amplification without the use of costly fluorophore-labeled probes or post-PCR manipulation. At the end of the PCR, the dissociation protocol included a slow heating from 60º to 95ºC in 0.2ºC steps, with an 8-s interval between steps. Melting curve profiles were obtained using the dissociation software of the Rotor Gene-3000 apparatus. Samples were analyzed in duplicate and in different PCR runs to test the reproducibility of...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Melting temperature assay; Real time PCR; MBL2; Polymorphisms; HIV-1-positive children.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000600003
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Validation of a real-time PCR assay for the molecular identification of Mycobacterium tuberculosis BJM
Sales,Mariana L.; Fonseca Júnior,Antônio Augusto; Orzil,Lívia; Alencar,Andrea Padilha; Silva,Marcio Roberto; Issa,Marina Azevedo; Soares Filho,Paulo Martins; Lage,Andrey Pereira; Heinemann,Marcos Bryan.
Mycobacterium tuberculosis is the major cause of tuberculosis in humans. This bacillus gained prominence with the occurrence of HIV, presenting itself as an important opportunistic infection associated with acquired immunodeficiency syndrome (AIDS). The current study aimed to develop a real-time PCR using Eva Green technology for molecular identification of M. tuberculosis isolates. The primers were designed to Rv1510 gene. Ninety nine samples of M. tuberculosis and sixty samples of M. bovis were tested and no sample of the bovine bacillus was detected by the qPCR. Statistical tests showed no difference between the qPCR and biochemical tests used to identify the Mycobacterium tuberculosis. The correlation between tests was perfect with Kappa index of 1.0...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mycobacterium tuberculosis; Diagnosis; Real time PCR.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400029
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Mycobacterium avium subsp. Paratuberculosis and the expression of selected virulence and pathogenesis genes in response to 6°c, 65°c and ph 2.0 BJM
Pribylova,Radka; Kralik,Petr; Donnelly,Neysan; Matiasovic,Jan; Pavlik,Ivo.
The aim of this work was to study the expression of selected Mycobacterium avium subsp. paratuberculosis (MAP) genes connected with MAP virulence, adhesion and stress response. The temperature of 6°C and 65°C were chosen with regard to the food industry, storage conditions (refrigerator) and low-temperature pasteurization. A pH of 2.0, using lactic acid, was selected to mimic the natural environment of the stomach. Expression of selected genes was studied using real time reverse transcription PCR on three different MAP isolates. MAP isolates were chosen according to the number of their preceding cultivations. While isolates 8672 and 8819 were previously cultivated only once, MAP isolate 12146 went through four passages. Different expression profiles were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: MAP; Johne's disease; Stress; Treatment; Real time PCR.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000200049
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Expression analysis for genes involved in arachidonic acid biosynthesis in Mortierella alpina CBS 754.68 BJM
Samadlouie,Hamid-Reza; Hamidi-Esfahani,Zohreh; Alavi,Seyed-Mehdi; Varastegani,Boshra.
The time courses for production of fungal biomass, lipid, phenolic and arachidonic acid (ARA) as well as expression of the genes involved in biosynthesis of ARA and lipid were examined in Mortierella alpina CBS 754.68. A significant increase in the arachidonic acid content in lipids that coincided with reduced levels of lipid was obtained. Reduced gene expression occurred presumably due to the steady reduction of carbon and nitrogen resources. However, these energy resources were inefficiently compensated by the breakdown of the accumulated lipids that in turn, induced up-regulated expression of the candidate genes. The results further indicated that the expression of the GLELO encoding gene is a rate-limiting step in the biosynthesis of ARA in the early...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mortierella alpina; Arachidonic acid; Lipid; Gene expression; Real time PCR.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000200010
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Comparison of nine DNA extraction methods for the diagnosis of bovine tuberculosis by real time PCR Ciência Rural
Moura,André; Hodon,Mikael Arrais; Soares Filho,Paulo Martins; Issa,Marina de Azevedo; Oliveira,Ana Paula Ferreira de; Fonseca Júnior,Antônio Augusto.
ABSTRACT: Bovine tuberculosis is an infectious disease with a high impact on the cattle industry, particularly in developing countries. PCR is a very sensitive method for detection of infectious agents, but the sensitivity of molecular diagnosis is largely dependent on the efficiency of the DNA extraction methods. The objective of this study was to evaluate DNA extraction methods for direct detection of Mycobacterium bovis in bovine tissue. Nine commercial kits for DNA extraction were evaluated when combined with two real time PCRs. The DNeasy Blood & Tissue Kit from QIAGEN showed better performance and sensitivity followed by the DNA Mini Kit RBC and FTA Elute Micro Card. Results suggested that, even when the analytical sensitivity of the qPCR is...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bovine tuberculosis; DNA extraction; Real time PCR.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701223
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Different methods of real-time PCR for detection of pseudorabies virus Ciência Rural
Nonaka,Carolina Kymie Vasques; Fonseca Junior,Antônio Augusto; Guedes,Estefânia Oliveira; D´Ambros,Régia Maria; Lima,Graciela Kunrath; Camargos,Marcelo Fernandes; Heinemann,Marcos Bryan.
ABSTRACT: Pseudorabies (PR) is a highly contagious viral disease of great animal health and economic importance in swine industry. The aim of this study was to evaluate different genomic regions, real-time PCR chemistries and equipment for the molecular diagnosis of PR. Eight primer pairs targeting four genes (gB, gC, gE, gD), three different qPCR chemistries (SybrGreen, hydrolysis probes and plexor) and two equipment (ABI7500, Rotorgene 3000) were evaluated. Oligonucleotides targeting gB using hydrolysis probes showed the best performance after evaluating efficiency (99%), the detection limit (10-1.5 TCID50 mL-1) and diagnostic sensitivity and; therefore, those primers were selected for performance verification factors such as repeatability,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Real time PCR; Pseudorabies; Diagnose.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000300452
Registros recuperados: 28
Primeira ... 12 ... Última
 

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