alexa Effects of Passive Immunization against Peptide Tyrosine Tyrosine on the Activity of Digestive Enzymes in Rats
ISSN: 2167-0501

Biochemistry & Pharmacology: Open Access
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Research Article

Effects of Passive Immunization against Peptide Tyrosine Tyrosine on the Activity of Digestive Enzymes in Rats

Fan Zhiyong1,2*, Zhang Guanglei1, Zhou Dinggang3, Liang Zhe3, Wu Xin4 and Wang Fenglai2
1Engineering Research Center for Feed Safety and Efficient Utilization of Ministry of Education, Institute of Animal Nutrition, Hunan Agricultural University, Hunan,410128, China
2State Key Laboratory of Animal Nutrition, Beijing 100081, China
3College of Animal Science and Technology, Sichuan Agricultural University, Yaan, 625014, China
4Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China
Corresponding Author : Fan Zhiyong
Engineering Research Center for Feed
Safety and Efficient Utilization of Ministry of Education
Institute of Animal Nutrition
Hunan Agricultural University
Hunan, 410128, China
Tel: +86-731-84618176
E-mail: [email protected]
Received: September 03, 2015 Accepted: September 24, 2015 Published: September 27, 2015
Citation: Zhiyong F, Guanglei Z, Dinggang Z, Zhe L, Xin W, et al. (2015) Effects of Passive Immunization against Peptide Tyrosine Tyrosine on the Activity of Digestive Enzymes in Rats. Biochem Pharmacol (Los Angel) 4:188. doi:10.4173/2167-0501.1000188
Copyright: © 2015 Zhiyong F, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
 

Abstract

The object of this study was to investigate the effect of serum antibody of peptide tyrosine tyrosine on activities of digestive enzymes in rats. A total of sixty sprague-dawley (SD) rats weighing 87.77 ± 1.61 g were randomly allocated to 1 of 4 dose treatment:0 (control), 50 μL, 100 μL, or 200 μL peptide tyrosine tyrosine antiserum during the 21-d experimental period. The activity of amylases and lipases in the pancreas and duodenum as well as gastric pepsin was measured at the end of the study. The results showed that the activity of lipases in the pancreas and duodenum increased with increasing peptide tyrosine tyrosine antiserum level, but obvious tendency of pancreatic lipases activity between all treatments was not observed(P>0.05). The lipase activity in the duodenum showed a significant increase (P<0.05) in the groups treated with 100 μL or 200 μL of peptide tyrosine tyrosine antiserum compared with the control group. The amylase activity in the pancreas and duodenum increased with the increasing peptide tyrosine tyrosine antiserum dose, and the group treated with 200 μL of peptide tyrosine tyrosine antiserum was significantly higher (P<0.05) than the other groups. The amylase activity in the duodenum showed no significant difference (P>0.05) among groups, but the group treated with 200 μL of PYY antiserum showed the highest activity. In conclusion, the injection of peptide tyrosine tyrosine antiserum improved nutrition utilization rate and activity of digestive enzymes in a dose dependent manner in rats.

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