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 …
Differential Expression Of Cell Cycle Regulators During Hyperplastic And Hypertrophic Growth Of Broiler Subcutaneous Adipose Tissue.Pdf, Jibin Zhang, Yeunsu Suh, Young Min Choi, Paula Chen, Michael Davis, Kichoon Lee
May 2015
Differential Expression Of Cell Cycle Regulators During Hyperplastic And Hypertrophic Growth Of Broiler Subcutaneous Adipose Tissue.Pdf, Jibin Zhang, Yeunsu Suh, Young Min Choi, Paula Chen, Michael Davis, Kichoon Lee
Jibin Zhang
Hyperplasticgrowth and hypertrophicgrowth within adiposetissue is tightly associated with cellcycle activity. In this study, CCNG2 and CDKN2C were found to be correlated with cellcycle inhibition during fat cell differentiation, whereas CCND3, CCNA1, and ANAPC5 were positively associated with cellcycle activity during fat cell proliferation after selection based on GEO datasets available on the NCBI website. The findings were validated through comparison of expressions of these genes among different tissues/fractions in broiler chickens and time points during primary cell culture using quantitative real-time PCR. Development of broilersubcutaneousadiposetissue was investigated on embryonic days 15 and 17 and on post-hatch days 0, 5, …
Differential Expression Of Cyclin G2, Cyclin Dependent Kinase Inhibitor 2c And Peripheral Myelin Protein 22 Genes During Adipogenesis..Pdf, Jibin Zhang, Yeunsu Suh, Young Min Choi, Jinsoo Ahn, Michael E. Davis, Kichoon Lee
May 2014
Differential Expression Of Cyclin G2, Cyclin Dependent Kinase Inhibitor 2c And Peripheral Myelin Protein 22 Genes During Adipogenesis..Pdf, Jibin Zhang, Yeunsu Suh, Young Min Choi, Jinsoo Ahn, Michael E. Davis, Kichoon Lee
Jibin Zhang
Increase of fat cells (FCs) in adipose tissue is attributed to proliferation of preadipocytes or immature adipocytes in the early stage, as well as adipogenic differentiation in the later stage of adipose development. Although both events are involved in the FC increase, they are contrary to each other, because the former requires cell cycle activity, whereas the latter requires cell cycle withdrawal. Therefore, appropriate regulation of cell cycle inhibition is critical to adipogenesis. In order to explore the important cell cycle inhibitors and study their expression in adipogenesis, we adopted a strategy combining the Gene Expression Omnibus (GEO) database available …
A Comprehensive Microrna Expression Profile Of The Backfat Tissue From Castrated And Intact Full-Sib Pair Male Pigs.Pdf, Ying Bai, Jinming Huang, Gang Liu, Jibin Zhang, Jianying Wang, Chengkun Liu, Meiying Fang
Jan 2014
A Comprehensive Microrna Expression Profile Of The Backfat Tissue From Castrated And Intact Full-Sib Pair Male Pigs.Pdf, Ying Bai, Jinming Huang, Gang Liu, Jibin Zhang, Jianying Wang, Chengkun Liu, Meiying Fang
Jibin Zhang
Background: It is widely known that castration has a significant effect on the accumulation of adipose tissue. microRNAs (miRNAs) are known to be involved in fat deposition and to be regulated by the androgen-induced androgen receptor (AR). However, there is little understanding of the relationship between miRNAs and fat deposition after castration. In this study, the high-throughput SOLiD sequencing approach was used to identify and characterize miRNA expression in backfat from intact and castrated full-sib male 23-week-old pigs. The patterns of adipogenesis and fat deposition were compared between castrated and intact male pigs.
Results: A total of 366 unique miRNA …
Expression Analysis Of Hif-1a And Hif-2a Genes In Tibetan Chicken Under Normoxia And Hypoxia.Pdf, Yunzhou Yang, Ying Bai, Xinxing Dong, Jibin Zhang, Meiying Fang
Nov 2011
Expression Analysis Of Hif-1a And Hif-2a Genes In Tibetan Chicken Under Normoxia And Hypoxia.Pdf, Yunzhou Yang, Ying Bai, Xinxing Dong, Jibin Zhang, Meiying Fang
Jibin Zhang
Tibetan chicken is one of those chicken breeds that could adapt to high altitude and low oxygen pressure environment; it owes to an integrative genetic mechanism for hypoxia adaptability compared to lowland chicken breeds. HIF-1α and HIF-2α are the central factors playing important roles in maintaining organisms’s oxygen homeostasis. In this study, the expression of HIF-1α and HIF-2α genes were investigated by Real Time-PCR in Tibetan chicken and Dwarf chicken embryo brain tissue under normoxia (21% oxygen concentration) and hypoxia (13% oxygen concentration). The results showed that Tibetan chicken always had lower mortality than Dwarf chicken during the incubation. We …
Molecular Cloning And Characterization Of The Porcine Fto Promoter And Coding Regions.Pdf, Jinming Huang, Yunzhou Yang, Gang Liu, Jibin Zhang, Xinxing Dong, Ying Bai, Meiying Fang
Nov 2010
Molecular Cloning And Characterization Of The Porcine Fto Promoter And Coding Regions.Pdf, Jinming Huang, Yunzhou Yang, Gang Liu, Jibin Zhang, Xinxing Dong, Ying Bai, Meiying Fang
Jibin Zhang
The fat mass and obesity associated gene (FTO) has been widely reported to be associated with fat mass or fat deposition in different species. In the present study, we cloned both promoter and codingregions of the gene in pigs with over 5 Kb of sequence for the former region and 1,596 bp for the latter region. Comparative analysis of the promoter region among 20 species including pig revealed four conserved regions that harbor transcriptional factors involved in adipose differentiation. Using a pooled DNA sequencing approach, we discovered 39 single nucleotide polymorphisms (SNPs) in the pig FTO gene and four of them were …
