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Articles by X.Y. Chen
Total Records ( 2 ) for X.Y. Chen
  X.Y. Chen , R.S. Jiang , H.C. Bai and Z.Y. Geng
  It is well established that stress is related to neurochemical and hormonal changes including alterations in adrenal and thyroid hormone levels. In the present study, thyroid axis and hypothalamic-pituitary-adrenal axis related hormomal, Triiodothyronine (T3), Thyroxine (T4), Thyroid-Stimulating Hormone (TSH), Adreno-Cortico-Tropic-Hormone (ACTH) and Thyroid Releasing Hormone (TRH) mRNA, ACTH mRNA changes during cold stress with different intensities were recorded in two Chinese indigenous breeds from different latitude. The results showed that Huainan partridge chicken from central China, showed obvious conversion in T3 and T4 under severe cold stress. Plasma TSH and pituitary TRH mRNA highly expressed over 12-24 h long time severe cold exposure. However, mild cold did not obviously affect those hormones mentioned above. In the Wenchang chicken which from south of China, severe and mild cold stress showed the same affection on the thyroid axis but not obvious on the adrenal axis. The results would further help the revealing of the mechanism of injury caused by cold stress and provide better controls for chicken from loss of cold stress in different areas.
  X.Y. Chen , S.H. Jin , R.S. Jiang and Z.Y. Geng
  Radix aconiti laterlis preparata (Fu Zi in Chinese), a Chinese traditional medicine has been widely used for Yang deficiency. Recent clinical studies have shown that Fu Zi could ameliorate stressed condition but the mechanisms underlying the anti-stress effect of Fu Zi remains unknown. In this study, researchers examined the effects of Fu Zi on the treatment of broilers exposed to Extreme Cold Stress (ECS). The levels of Nitric Oxide (NO) and creatine kinase in plasma were measured and Hsp70 mRNA expression in different tissues was analyzed. Broilers subjected to ECS exhibited increased NO content before 3 h and increased Hsp70 expression under a time and tissue-dependent manner. Biochemically, Fu Zi reversed ECS-induced increases in NO and Hsp70 mRNA and the results suggest that Fu Zi supplemented broilers kept an elevated plasma NO content through anti-oxidative activity during ECS.
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