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Asian-Australas J Anim Sci > Volume 14(12); 2001 > Article
Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2001;14(12): 1659-1664.
DOI: https://doi.org/10.5713/ajas.2001.1659    Published online December 1, 2001.
Monitoring of Blood Cytokines by PIT-1 Genotypes in Day 150 Male Pigs
J. Yoon, M. S. Rhee, D. S. Seo, B. C. Kim, Y. Ko
Abstract
Several studies have been done regarding carcass traits and growth in pigs. Recently, these have progressed to examine increases in economic traits, including meat quality and meat quantity, by using candidate genes. One of them is the pituitary-specific protein PIT-1, a member of the POU (Pit-Oct-Unc) family of transcription factors playing an important regulatory role in developmental processes. In addition, muscle development is known to be regulated in part by growth factors and cytokines locally produced. Therefore, studies were performed to analyze PIT-1 genotypes and serum cytokines (IGF-I, IGF-II, TGF- 1, EGF, cortisol, DHEA-S, IL-2, and IL-6) in castrated male pigs for their possible involvement in the development of carcass traits. The genotypes of PIT-1 gene were analyzed by PCR-RFLP with MspI restriction enzyme. But, only CD and DD genotypes, not CC genotype, have been detected. Based on PIT-1 genotyping, a significant difference in EGF expression beween CD type (78.8 ng/ml) and DD type (46.0 ng/ml) was detected (p<0.05), whereas other cytokines did not show any statistical significance depending on PIT-1 genotypes. Collectively, these results suggest the possibility that EGF could affect the formation of carcass traits.
Keywords: PIT-1; Growth Factor; Cytokine; Hormone; Pig
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