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Full-Text Articles in Life Sciences

Distinct Cardiac Responses To Heat Stress Between Two Broiler Lines Identified By Transcriptome Analysis, Jibin Zhang, Carl J. Schmidt, Susan J. Lamont Jan 2016

Distinct Cardiac Responses To Heat Stress Between Two Broiler Lines Identified By Transcriptome Analysis, Jibin Zhang, Carl J. Schmidt, Susan J. Lamont

Jibin Zhang

Prolonged exposure to high temperature can significantly increase metabolism, depress appetite, reduce meat production and raise mortality in broilers. Because the cardiovascular system plays an important role to dissipate heat and transport oxygen, strong cardiac function is indispensable for birds to survive under heat stress. However, due to small hearts relative to body weight, modern broilers have high risk of heart failure at high temperature.
In this study, a Ross 708 line (modern broilers) and a Heritage broiler line (relaxed selection since the 1950s) were subjected to heat stress at 35℃  for 7 hours/day from 21 to 42 days posthatch …


Deciphering The Associations Between Gene Expression And Copy Number Alteration Using A Sparse Double Laplacian Shrinkage Approach, Shuangge Ma Dec 2014

Deciphering The Associations Between Gene Expression And Copy Number Alteration Using A Sparse Double Laplacian Shrinkage Approach, Shuangge Ma

Shuangge Ma

Both gene expression levels (GEs) and copy number alterations (CNAs) have important implications in the development of complex diseases. GEs are partly regulated by CNAs, and much effort has been devoted to understanding their relations. The expression of a gene can be regulated by multiple CNAs, and one CNA can regulate the expression of multiple genes. In addition, multiple GEs (CNAs) can be correlated with each other. The existing methods for associating GEs with CNAs have limitations in deciphering the complex data structures. In this study, we develop a sparse double Laplacian shrinkage approach. It jointly models the effects of …


A Penalized Robust Semiparametric Approach For Gene-Environment Interactions, Shuangge Ma Dec 2014

A Penalized Robust Semiparametric Approach For Gene-Environment Interactions, Shuangge Ma

Shuangge Ma

In genetic and genomic studies, gene-environment (G*E) interactions have important implications. Some of the existing G$\times$E interaction methods are limited by analyzing a small number of G factors at a time, by assuming linear effects of E factors, by assuming no data contamination, and by adopting ineffective selection techniques. In this study, we propose a new approach for identifying important G*E interactions. It jointly models the effects of all E and G factors and their interactions. A partially linear varying coefficient model (PLVCM) is adopted to accommodate possible nonlinear effects of E factors. A rank-based loss function is used to …


Jibin Zhang's Ppt For Midwest Meeting.Pdf, Jibin Zhang, Yeunsu Suh, Young Min Choi, Michael E. Davis, Kichoon Lee Mar 2014

Jibin Zhang's Ppt For Midwest Meeting.Pdf, Jibin Zhang, Yeunsu Suh, Young Min Choi, Michael E. Davis, Kichoon Lee

Jibin Zhang

Increasing numbers of fat cells in adipose tissue are attributed to proliferation of preadipocytes or immature adipocytes in the early stages as well as adipogenic differentiation in the later stages of adipogenesis. Although both events are involved in the increase in fat cell numbers, they are contrary to each other in that the former requires cell cycle activity whereas the latter requires cell cycle withdrawal. Therefore, appropriate regulation of cell cycle inhibition is critical to adipogenesis.
To explore the important cell cycle inhibitors and study their expression in adipogenesis, a strategy was adopted that combined the Gene Expression Omnibus (GEO) …


Time Series Data For 3b Image Processing, George Mcnamara Jan 2014

Time Series Data For 3b Image Processing, George Mcnamara

George McNamara

Time series data for 3B image processing

Four time series data sets of Stellaris single molecules RNA FISH (fluorescence in situ hybridization). All four datasets are 301 imaqe planes. FISH probes are to TOP1 mRNA (Topoisomerase I)in Saos osterosarcoma cells.

One dataset is 10 millisecond exposures (very dim), acquired in Streaming acquisition mode (no hardware overhead).

The other three datasets are a three consecutive planes of the same XY field of view.

I have included image processing results for:

PiMP - a fast method developed by Sebastian Munck et al 2012, http://www.ncbi.nlm.nih.gov/pubmed/?term=22357945

and greatly improved performance by Glen Macdonald (Seattle). …


Software To Accompany "A Kernel Machine Approach For Differential Expression Analysis Of Mass Spectrometry-Based Metabolomics Data", Debashis Ghosh Jan 2014

Software To Accompany "A Kernel Machine Approach For Differential Expression Analysis Of Mass Spectrometry-Based Metabolomics Data", Debashis Ghosh

Debashis Ghosh

No abstract provided.