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Transcriptome microRNA profiling of bovine mammary epithelial cells challenged with Escherichia coli or Staphylococcus aureus bacteria reveals pathogen directed microRNA expression profiles
Download2014
Zhao, Xin, Liang, Guanxiang, Jin, Weiwu, Guan, Leluo, Beaudoin, Frédéric, Ibeagha-Awemu, Eveline M.
Background MicroRNAs (miRNAs) can post-transcriptionally regulate gene expression and have been shown to be critical regulators to the fine-tuning of epithelial immune responses. However, the role of miRNAs in bovine responses to E. coli and S. aureus, two mastitis causing pathogens, is not well...
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Elucidation of molecular mechanisms of physiological variations between bovine subcutaneous and visceral fat depots under different nutritional regimes
Download2013
Jin, Weiwu, He, Maolong, Guan, Leluo, Romao, Josue M., McAllister, Tim
Adipose tissue plays a critical role in energy homeostasis and metabolism. There is sparse understanding of the molecular regulation at the protein level of bovine adipose tissues, especially within different fat depots under different nutritional regimes. The objective of this study was to...
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Initial differences in lipid processing leading to pig- and beef-derived mature adipocyte dedifferentiation
Download2009
Fernyhough, Melinda E., Hausman, Gary J., Guan, Leluo, Guridi, Maitea, Jiang, Zhihua, Dodson, Michael V., Chen, Jie
Clonal cultures of pig-derived mature adipocytes are capable of dedifferentiating and forming proliferative-competent progeny cells in vitro. Initial lipid processing, is different to that observed in cultures of beef-derived adipocytes. Mature pig adipocytes extrude lipid before proliferation,...
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Microarray analysis in caudal medulla of cattle orally challenged with bovine spongiform encephalopathy
Download2011
Williams, John L., Moore, Stephen S., Almeida, Luciane M., Basu, Urmila, Guan, Leluo
Bovine spongiform encephalopathy (BSE) is a fatal disorder in cattle characterized by progressive neurodegeneration of the central nervous system. We investigated the molecular mechanisms involved in neurodegeneration during prion infection through the identification of genes that are...
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Genome-wide association for milk production and female fertility traits in Canadian dairy Holstein cattle
Download2016
Nayeri, Shadi, Stothard, Paul, Moore, Stephen S., Abo-Ismail, Mohammed K., May, Natalie, Schenkel, Flavio, Sargolzaei, Mehdi, Miller, Stephen P.
Background Genome-wide association studies (GWAS) are a powerful tool for detecting genomic regions explaining variation in phenotype. The objectives of the present study were to identify or refine the positions of genomic regions affecting milk production, milk components and fertility traits in...
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Potential regulatory role of microRNAs in the development of bovine gastrointestinal tract during early life
Download2014
Liang, Guanxiang, Bao, Hua, Guan, Leluo, Griebel, Philip J., Stothard, Paul, McFadden, Thomas B., Malmuthuge, Nilusha
This study aimed to investigate the potential regulatory role of miRNAs in the development of gastrointestinal tract (GIT) during the early life of dairy calves. Rumen and small intestinal (mid-jejunum and ileum) tissue samples were collected from newborn (30 min after birth; n = 3), 7-day-old...
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2009
Grant, Jason, Stothard, Paul, Moore, Stephen S., Guan, Leluo, Jin, Weiwu
Background MicroRNAs (miRNAs) are a family of ~22 nucleotide small RNA molecules which regulate gene expression by fully or partially binding to their complementary sequences in mRNAs or promoters. A large number of miRNAs and their expression patterns have been reported in human, mouse and rat....
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Bacterial response to siderophore and quorum-sensing chemical signals in the seawater microbial community
Download2001
Background Oceans are iron-deficient and nutrient-poor environments. These conditions impart limitations on our understanding of and our ability to identify microorganisms from the marine environment. However, less of knowledge on the influence of siderophores and N-acyl homoserinelactone as...
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2011
Bergen, Werner G., Fernyhough, Melinda E., Hausman, Gary J., Dodson, Mike V., Du, Min, Mir, Priya S., Guan, Leluo, Jiang, Zhihua
Obesity and metabolic syndromes are examples whereby excess energy consumption and energy flux disruptions are causative agents of increased fatness. Because other, as yet elucidated, cellular factors may be involved and because potential treatments of these metabolic problems involve systemic...
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Whole-genome resequencing of Hanwoo (Korean cattle) and insight into regions of homozygosity
Download2013
Lee, Kyung-Tai, Ahn, Sungmin, Choy, Yun H., Lee, Sang-Heon, Jang, Gul-Won, Liao, Xiaoping, Lee, Seunghwan, Lee, Sung-Yeoun, Chung, Won-Hyong, Stothard, Paul, Choi, Jung-Woo, Kim, Tae-Hun, Kim, Bumsoo, Kim, Jiwoong, Lim, Dajeong, Moore, Stephen S., Kim, Namshin
Background Hanwoo (Korean cattle), which originated from natural crossbreeding between taurine and zebu cattle, migrated to the Korean peninsula through North China. Hanwoo were raised as draft animals until the 1970s without the introduction of foreign germplasm. Since 1979, Hanwoo has been bred...