Research Article

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05/25/2017
Animals; Caseins; Cattle; Female; Milk; Polymorphism, Genetic

Several human health problems have been related to the allergenic constitution of bovine milk due to the body's immune reaction to milk proteins. It is necessary find solutions to minimize the occurrence of such reactions, given the importance of milk as a source of animal protein. The aim of this study was to evaluate the allelic frequency of the CSN2 gene and to evaluate differences in the ... more

A.H.N. Rangel; L.G. Zaros; T.C. Lima; L.H.F. Borba; L.P. Novaes; L.F.M. Mota; M.S. Silva
05/25/2017
Animals; Buffaloes; Female; Fertility; Gene frequency; Polymorphism, Single Nucleotide; Promoter Regions, Genetic; Receptors, Melatonin

Buffalo production is spreading globally because of its economic advantage. Then, it has become necessary to improve the reproductive and productive efficiency of these animals, as well as to look for genetic factors that increase this efficiency. The objectives of this study were to characterize the promoter region of the melatonin 1A receptor gene (MTRN1A), to detect possible SNPs and ... more

E.M. Barbosa; B.B. Souza; R.C. Guimarães; L.K.N. Silva; J.S.N. Azevedo; E.C. Gonçalves; H.F.L. Ribeiro; S.T.Rolim Filho; S. Filho
06/29/2017
Animals; Cattle; Female; Genome-wide association study; Genotype; Lactation; Longevity; Milk; Quantitative trait loci; Quantitative Trait, Heritable; Reproduction; Selective breeding

In this study, we estimated the genetic parameters and identified the putative quantitative trait loci (QTL) associated with the length of productive life (LPL), days open (DO), and 305-day milk yield for the first lactation (FM305) of crossbred Holstein dairy cattle. Data comprising 4,739 records collected between 1986 and 2004 were used to estimate the variance-covariance components using ... more

P. Saowaphak; M. Duangjinda; S. Plaengkaeo; R. Suwannasing; W. Boonkum
06/29/2017
Animals; Bacterial Proteins; Cattle; Drug Resistance, Microbial; Female; Genotype; Mastitis, Bovine; Milk; Phenotype; Polymorphism, Genetic; Staphylococcus aureus

The Staphylococcus aureus is the most common isolated microorganism in ruminant animal species diagnostic with clinical or subclinical mastitis. Dairy herds with these diseases can transfer S. aureus into the milk supply, which can lead to food poisoning in humans. The objective of this study was to evaluate the profile of antimicrobial susceptibility, the presence of femA gene, the genetic ... more

A.R.E.O. Xavier; A.C. Almeida; C.N. Souza; L.M.V. Silva; A.X.A. Ruas; D.A. Sanglard; A.F.M. Júnior; A.M.E. Oliveira; M.A.S. Xavier
09/27/2017
Animals; Anovulation; Brain; Female; Interleukin-6; Leptin; Lipid metabolism; Mice; Mice, Obese; Receptor Protein-Tyrosine Kinases; Receptors, GABA; Receptors, Muscarinic; Receptors, Serotonin; Synaptic Transmission

Polycystic ovary syndrome is the classic example of loss of functional cyclicity and anomalous feedback. In this case, the excessive extra-glandular production and conversion of androgens to estrogens are the pathophysiological basis of the chronic anovulation. The literature describes an experimental model of the polymicrocystic ovary in obese diabetic mice with insulin resistance. The fact ... more

M.A. Azevedo; I.D.C.G. Silva
12/19/2016
Athletes; Cell Hypoxia; Cell proliferation; Cells, Cultured; Endothelial progenitor cells; Exercise; Gene expression; Humans; Lipoproteins; Skiing

In this study, we compared the functional properties of endothelial progenitor cells (EPCs) derived from halfpipe-snowboarding athletes who train under hyperoxic conditions with those derived from normal subjects who lived under normoxic conditions. Peripheral blood-derived EPCs were isolated from both halfpipe-snowboarding athletes and normal humans. Cellular growth dynamics, lipoprotein ... more

Y.H. Zhao; J.C. Kan; Y.F. Wang; W.J. Guan; Z.Q. Zhu
12/19/2016
Bacteria; Bacterial Proteins; Computational biology; Databases, Protein; Gene Ontology; Humans; Protein Interaction Mapping

Since the first assembled genomes, gene sequences alone have not been sufficient to understand complex metabolic processes involving several genes, each playing distinct roles. To identify their roles, a network of interactions, wherein each gene is a node, should be created. Edges connecting nodes are evidence of interaction, for instance, of gene products coexisting in the same cellular ... more

G.S. Oliveira; A.R. Santos
12/19/2016
Computational biology; Gene Regulatory Networks; Humans; Models, Genetic; Models, Statistical; Translational Research, Biomedical

A salient problem in translational genomics is the use of gene regulatory networks to determine therapeutic intervention strategies. Theoretically, in a complete network, the optimal policy performs better than the suboptimal policy. However, this theory may not hold if we intervene in a system based on a control policy derived from imprecise inferred networks, especially in the small-sample ... more

X.Z. Zan; W.B. Liu; M.X. Hu; L.Z. Shen
12/19/2016
Brazil; Cystic fibrosis; Cystic Fibrosis Transmembrane Conductance Regulator; Early Diagnosis; Gene flow; Gene frequency; Genetic counseling; Healthy Volunteers; Humans; Mutation; White People

The ΔF508 mutation is the most common cause of cystic fibrosis and its prevalence varies worldwide. For instance, up to 20-fold variations in its frequency have been recorded across different areas of Brazil. This study aimed to compare the distribution of ΔF508 among healthy individuals of admixed Portuguese descent from Espírito Santo (ES), a state in Southeastern Brazil, to that in a ... more

A.M. Lanes; L.S. Louro; D.P. Ventorim; E. Stur; F.M. Garcia; L.P. Agostini; L.N.R. Alves; R.S. Reis; I.D. Louro; R.S. Dettogni
12/23/2016
Alleles; Antineoplastic Combined Chemotherapy Protocols; Carcinoma, Non-Small-Cell Lung; Cisplatin; DNA-Binding Proteins; Genotype; Humans; Lung Neoplasms; Neoplasm Staging; Polymorphism, Genetic; Treatment outcome; X-ray Repair Cross Complementing Protein 1

Non-small cell lung cancer (NSCLC) is the most common cancer globally. The XRCC1 protein interacts with ligase and poly(ADP-ribose) polymerase to repair cisplatin-induced DNA damage. The authors of previous studies have reported XRCC1 Arg399Gln, Arg280His, and Arg194Trp polymorphisms and advanced NSCLC prognosis, but the results are inconclusive. We investigated the association between ... more

H.F. Liu; J.S. Liu; J.H. Deng; R.R. Wu

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