|
|
|
| Registros recuperados: 81 | |
|
| |
|
|
| St-Pierre,Normand Roger. |
| In certain areas of animal research, such as nutrition, quantitative summarizations of literature data are periodically needed. In such instances, statistical methods dealing with the analysis of summary data (generally from the literature) must be used. These methods are known as meta-analyses. The implementation of a meta-analysis is done in several phases. The first phase defines the study objectives and identifies the criteria for selecting prior publications to be used in the construction of the database. Publications must be scrupulously evaluated for their quality before being entered into the database. During this phase, it is important to carefully encode each record with pertinent descriptive attributes (experiments, treatments, etc.) to serve as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Meta-analysis; Mixed models; Nutrition. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007001000031 |
| |
|
|
| Oliveira,Newton Tavares Escocard de; Pozza,Paulo Cesar; Castilha,Leandro Dalcin; Pasquetti,Tiago Junior; Langer,Carolina Natali. |
| ABSTRACT The use of predicted values of apparent metabolisable energy (AME), obtained from regression equations, can be useful for both research institutions and nutrition industries. However, there is a need to validate independent samples to ensure that the predicted equation for AME is reliable. In this study, data was collected in order to estimate the prediction equations of corn, sorghum and wheat bran for pig feed, based on the chemical composition, in addition to evaluating the validity of the stepwise selection procedure regressive method of non-parametric bootstrap resampling. Data from metabolism trials in pigs and the chemical composition of feedstuffs was collected from both Brazilian and international literature, expressed as dry matter.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical composition; Corn; Meta-analysis; Pigs; Regression models. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000100131 |
| |
|
|
| BOCK,Brian C; PÁEZ,Vivian P. |
| ABSTRACT The citations contained in a recent literature review on the freshwater turtle and tortoise species of Colombia were analyzed. Publishing rates on these species have been increasing exponentially since the 1950s, although many of the publications would not be detected using internet-based literature searches. The most common topics of publications were systematics and phylogeography, nesting ecology, and management. In the 1970s and 1980s, the rate of publishing on the ecology and genetics of Colombian populations lagged behind the rate of publishing on these topics for populations of Colombian freshwater turtle and tortoise species located in other countries, but currently the production of the two regions is comparable. Also, in other countries... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Knowledge; Literature; Meta-analysis; Publications; Testudines. |
| Ano: 2017 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2017000100007 |
| |
|
|
| Tonello, Cleiton Luiz; Universidade Estadual de Maringá - UEM; Branco, Antonio Ferriani; Universidade Estadual de Maringá; Tsutsumi, Claudio Yuji; Universidade Estadual do Oeste do Paraná - UNIOESTE; Ribeiro, Leonir Bueno; Universidade Estadual de Maringá; Coneglian, Sabrina Marcantonio; Universidade Estadual de Maringá; Castañeda, Roman David; Universidade Estadual de Maringá. |
| O presente estudo utilizou a meta-análise para avaliar os efeitos da suplementação sobre o desempenho de bovinos de corte em pastagens, no Brasil, classificando os dados pelo tipo de forragem. Foram revisados artigos publicados entre os anos de 1999 e 2007, e realizadas comparações entre o desempenho de animais não-suplementados (controle) e animais suplementados, para determinar o efeito da suplementação sobre o desempenho animal, utilizando o ganho corrigido. As equações de regressão foram obtidas pela covariância, e as correlações e nível de significância entre as variáveis dependentes e independentes foram obtidas com o PROC CORR do programa estatístico SAS. Em forragens tropicais, os animais tiveram ganho diário corrigido de 0,31 kg dia-1, com um... |
| Tipo: Meta-análise |
Palavras-chave: 5.04.03.00-1 forrageiras tropicais; Forrageiras temperadas; Efeito substitutivo; Meta-análise Produção Animal tropical grasses; Temperate grasses; Substitution effect; Meta-analysis. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/8130 |
| |
|
|
| MADEIRA,KRISTIAN; DONDOSSOLA,EDUARDO R.; FARIAS,BRUNA F. DE; SIMON,CARLA S.; ALEXANDRE,MARIA C.M.; SILVA,BRUNO R.; ROSA,MARIA INÊS. |
| The objective of this work was to estimate the accuracy of mesothelin as a biomarker for ovarian cancer. A quantitative systematic review was performed. A comprehensive search of the Medline, LILACS, SCOPUS, Embase, Cochrane Central Register of Controlled Trials, Biomed Central, and ISI Web of Science databases was conducted from January 1990 to June 2015. For inclusion in this systematic review, the papers must have measured mesothelin levels in at least two histological diagnoses; ovarian cancer (borderline or ovarian tumor) vs. benign or normal ovarian tissue. For each study, 2 x 2 contingency tables were constructed. We calculated the sensitivity, specificity and diagnostic odds ratio. The verification bias was performed according to QUADAS-2.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ovarian tumors; Mesothelin; Meta-analysis; Biomarker; Statistical. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300923 |
| |
|
|
| GAO,HUAN; CAI,SHENGLI; YAN,BINLUN; CHEN,BAIYAO; YU,FEI. |
| To address whether there are differences of variation among repeat motif types and among taxonomic groups, we present here an analysis of variation and correlation of dinucleotide microsatellite repeats in eukaryotic genomes. Ten taxonomic groups were compared, those being primates, mammalia (excluding primates and rodentia), rodentia, birds, fish, amphibians and reptiles, insects, molluscs, plants and fungi, respectively. The data used in the analysis is from the literature published in the Journal of Molecular Ecology Notes. Analysis of variation reveals that there are no significant differences between AC and AG repeat motif types. Moreover, the number of alleles correlates positively with the copy number in both AG and AC repeats. Similar conclusions... |
| Tipo: Journal article |
Palavras-chave: Microsatellites; Eukaryotic genomes; Variation of SSR; Copy number; Meta-analysis. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000300011 |
| |
|
| |
|
| |
|
|
| Majidiani,Hamidreza; Dalvand,Sahar; Daryani,Ahmad; Galvan-Ramirez,Ma de la Luz; Foroutan-Rad,Masoud. |
| ABSTRACT Introduction: The global protozoan parasite, Toxoplasma gondii, infects many warm-blooded animals and humans by employing different transmission routes. There have been some recent studies on the probable relevance of infectious agents and diabetes. Therefore, we conducted a systematic review and meta-analysis to identify the possible association between chronic toxoplasmosis and diabetes mellitus. Methods: This study was conducted following the general methodology recommended for systematic reviews and meta-analysis. Nine English literature databases (Google scholar, PubMed, Scopus, Web of science, Science Direct, Ovid, ProQuest, IngentaConnect, and Wiley Online Library) were searched, up to January 2016. Random effects model was used to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Toxoplasma gondii; Diabetes mellitus; Systematic review; Meta-analysis. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000600605 |
| |
|
|
| Chu,Haiqing; Zhao,Lan; Wang,Minggui; Liu,Yang; Gui,Tao; Zhang,Jingbo. |
| BACKGROUND: A number of studies have reported on the effectiveness of sulbactam-based therapies for Acinetobacter baumannii infection; however, there is little evidence that sulbactam-based therapies are more or less effective than alternative therapies. Unfortunately, there is a distinct lack of high quality data (i.e., from randomized controlled trials) available on this issue. Therefore, we conducted a systematic review and meta-analysis comparing the efficacy of sulbactam-based and non-sulbactam-based regimens in the treatment of A. baumannii infection. METHODS: We searched PubMed, MEDLINE, Biomedical Central, Google Scholar, the China National Knowledge Infrastructure, the Cochrane library, and the Directory of Open Access using the terms "sulbactam... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acinetobacter baumannii; Infection; Meta-analysis; Sulbactam; Systematic review. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000400001 |
| |
|
|
| Silva,Maria José Penna Maisonnette de Attayde; Florêncio,Gilzandra Lira Dantas; Gabiatti,José Roberto Erbolato; Amaral,Rose Luce do; Eleutério Júnior,José; Gonçalves,Ana Katherine da Silveira. |
| OBJECTIVE: To evaluate the effect of Chlamydia trachomatis infection during pregnancy on perinatal morbidity and mortality. METHODS: Systematic review and meta-analysis in an electronic database and manual, combining high sensitivity specific descriptors seeking to answer the research objective. The articles considered to be of high methodological quality (score above 6 on the Newcastle-Ottawa Scale) were assessed by meta-analysis. RESULTS: Summary estimates of 12 studies were calculated by means of Mantel-Haenszel test with 95% confidence interval. It was observed that Chlamydia infection during pregnancy increased risk of preterm labor (relative risk (RR) = 1.35 [1.11, 1.63]), low birth weight (RR = 1.52 [1.24, 1.87]) and perinatal mortality (RR = 1.84... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chlamydia trachomatis; Perinatal mortality; Morbidity; Meta-analysis. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000600006 |
| |
|
|
| Wang,Qian; Liu,Jianfang; Guo,Yikun; Dong,Guanzhong; Zou,Wenying; Chen,Zhuoyou. |
| Brain-derived neurotrophic factor (BDNF) is widely expressed in the central nervous system and prolongs the survival of dopaminergic neurons in the substantia nigra. Several studies have recently investigated the association between BDNF G196A (Val66Met), a single nucleotide polymorphism influencing cognitive processes, and cognitive impairment in Parkinson's disease (PD), but with contradictory findings. Thus, this meta-analysis was performed to clarify the possible association. Relevant studies were identified by a systematic search of PubMed, Embase, and China National Knowledge Infrastructure (CNKI) databases. The strength of the association was evaluated using crude odds ratios and 95% confidence interval. Finally, six studies involving 532 cases and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: BDNF; Meta-analysis; Cognitive impairment; Parkinson's disease. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000800604 |
| |
|
| |
|
|
| Chen,Lin; Huang,Zhuochun; Liao,Yun; Yang,Bin; Zhang,Junlong. |
| Tumor necrosis factor-alpha (TNF-α) plays an important role in autoimmune diseases. Previous studies have investigated the association of TNF-α-238G/A (rs361525) and -308G/A (rs1800629) polymorphisms with rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE). However, no agreed conclusion had been made. Therefore, this meta-analysis was conducted to assess the associations of TNF-α-238G/A and -308G/A polymorphisms with RA and SLE risk. A systematic search was conducted in commonly used databases. Meta-analysis was performed by STATA12.0. A total of 43 studies were included. In the overall population, the TNF-α-238A allele was observed to be a protective factor for RA (A vs G: OR=0.75, 95%CI=0.57–0.99, P=0.040) and the TNF-α-308A allele was found... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rheumatoid arthritis; Single-nucleotide polymorphism; Systemic lupus erythematosus; Tumor necrosis factor-alpha; Meta-analysis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000300607 |
| |
|
| |
|
| |
|
|
| Guo,Z.Y.; Zhang,J.X.; Wu,M.; Mei,Y.F.; Lin,X.J.; Bu,C.; Xie,Y.; Wang,J.. |
| Many studies have evaluated the correlation between peptidylarginine deiminase 4 (PADI4) -92C/G polymorphism and rheumatoid arthritis (RA), but the results remain inconclusive. Therefore, we performed a meta-analysis in the Chinese population to provide comprehensive data on the association between PADI4 -92C/G polymorphism and RA. Eligible studies published before May 2016 were identified in PubMed and Chinese databases. The strengths of these associations were assessed by pooled odds ratios (OR) and 95% confidence interval (CI). Eight studies documenting a total of 1351 RA cases and 1585 controls were included in this meta-analysis. In the overall analysis, a significant association between the PADI4 -92C/G polymorphism and RA was found in the Chinese... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Meta-analysis; Peptidylarginine deiminase 4; Polymorphism; Rheumatoid arthritis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001000605 |
| |
|
| |
|
|
| Sun,F.J.; Zou,L.Y.; Tong,D.M.; Lu,X.Y.; Li,J.; Deng,C.B.. |
| This study aimed to investigate the association between ADAM metallopeptidase domain 33 (ADAM33) gene polymorphisms and the risk of childhood asthma. The relevant studies about the relationship between ADAM33 gene polymorphisms and childhood asthma were searched from electronic databases and the deadline of retrieval was May 2016. The single nucleotide polymorphisms (SNPs) of ADAM33 (rs511898, rs2280092, rs3918396, rs528557, rs2853209, rs44707, rs2280091 and rs2280089) were analyzed based on several models including the allele, codominant, recessive and dominant models. The results showed that the ADAM33 rs2280091 polymorphism in all four genetic models was associated with an increased risk of childhood asthma. Positive associations were also found between... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Childhood; Asthma; ADAM33; Gene polymorphisms; Asthma risk; Meta-analysis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001000609 |
| |
| Registros recuperados: 81 | |
|
|
|
