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Articles by Wenkai Ren
Total Records ( 3 ) for Wenkai Ren
  Min Gong , Wenkai Ren , Huijing Qi , Yulong Yin , Dehua Wang , Gang Liu and Guoyao Wu
  This research was conduct to study the effect of high intensity movement raining on the amino acids metabolism and distribution in internal organ and ntestinal morphosis. About 40 Sprague-Dawley male rats were randomly divided intoexercised group and sedentary group. On day 10 after the initiation treatment average daily feed intake became significant lower and the average weight became significantlower on day 12 compared with the sedentary group. There was not significant difference about amino acids in the serum but valine which was significant lower than sedentary groups. Movement training increased significantly all amino acids content except cysteine in the intestinal tissue but failed in the liver and muscle eventhough all amino acids were higher in the muscle than sedentary group but cysteine. Amino acids digestibility was lower in exercised group and it became significant lower when it comes to lysine and histidine. Additionally, movement training decreased the numbers of lymphocyte but had no effect on the goblet cell villi height and crypt depth in middle jejunum.
  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.
  Wenkai Ren , Liming Zeng , Yinghui Li , Li Wu , Jieping Guo , Miaomiao Wu , Gang Liu and Yulong Yin
  Once a mammal infected by a microorganism an elaborate response will be generated that attempts to eliminate the infection agent. These responses contained innate immune responses and adaptive immune responses. Cytokines played a role in both innate and adaptive immune responses. Porcine circovirus type 2 was the causal agent of postweaning multisystemic wasting syndrome which was an economically important disease in pigs. Although, the interaction between immune responses and porcine circovirus was suggested as a determinant factor in the pathogenesis of postweaning multisystemic wasting syndrome, the reports about the cytokines profile in PCV2 infection were mixed and confused. Thus, a detailed review about this field was presented according to the literature and the lab’s conclusion.
 
 
 
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