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Articles by Xinglong Yu
Total Records ( 2 ) for Xinglong Yu
  Gang Liu , Wenkai Ren , Dingding Su , Miaomiao Wu , Yinghui Li , Wei Luo , Xinglong Yu , Tiejun Li and Jun Fang
  This study was conducted to test the hypotheses that dietary L-arginine supplementation may enhance the immune responses and resulting in the clearance against PCV2 in experimentally infected mice. The measured variables include: the PCV2 virus load in liver, spleen, heart, lung, kidney, ovary and serum on 3rd, 5th, 7th, 9th and 11th day post infection (dpi); serum Interleukin-2 (IL-2), Interleukin-6 (IL-6), Interleukin-10 (IL-10), Interferon alpha (IFN-α), Interferon gamma (IFN-γ) and C-Reactive Protein (CRP) levels on 3rd, 5th, 7th, 9th and 11th dpi; serum Total Superoxide Dismutase (T-SOD) activity on 3rd, 5th, 7th, 9th and 11th dpi. Results showed that arginine supplementation could significantly increase the serum IL-2 levels on the 9th and 11th dpi; significantly increase the serum IFN-α and CRP levels on the 11th dpi; significantly increase the serum IFN-r levels on the 7th dpi and significantly decrease the serum IL-6 levels on the 9th dpi. Meanwhile, the PCV2 virus genome was detected sporadically. Collectively, dietary L-arginine supplementation had beneficial effects on the cytokines profile in the PCV2 infected mouse and maybe could delay the PCV2 replication and/or clear the PCV2 in mouse model.
  Fangfang Liu , Zhaofeng Luo , Xiang Ding , Shenggeng Zhu and Xinglong Yu
  Surface plasmon resonance and phage display technique were combined to acquire abundant specific capture molecules and realize label-free and high-sensitive detection for the protein chip. The 12-amino acid peptide displayed on phage M13 coated protein pIII (ET101-4-11) was selected as the probe, it was immobilized on 11-mercapto-undecanoic acid (11-MUA) sensor chip to fabricate the phage-displayed protein chip, and the interaction between the peptide and the specific protein (ET101) was detected on the BIAcore3000. Experimental results show that when ET101 diluted in series concentrations flow through the sensor chip, the relationship between the response and the sample concentration fits the sigmoid-curve very well, and the ET101 concentration of 4.0 μM corresponds to the response of 365RU ± 8RU. The kinetic parameters are also calculated, including the association rate 4.75 M–1s–1 and the dissociation rate 2.76 x 10–3s–1. The research suggests that the phage-displayed protein chip can act as a useful tool in proteomics research.
 
 
 
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