The Thai Journal of Veterinary Medicine


The expression patterns of neurotrophins(NTs) at the gene and protein level including nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), neurotrophin-3 (NT-3),and TrkB receptor were investigated in the prehierarchical follicles of Zi Geese by RT-qPCR and Western blotting analysis. The mRNA levels of NGF, BDNF, NT-3and TrkBreceptor increased significantly in the small white follicles (SWF), and more interesting by BDNFand NT-3transcripts were not detectable in small yellow follicles (SYF) marked as the last stage of prehierarchical ovarian development before transition into preovulatory follicles. Western blot revealed the presence of all the target neurotrophins and high-affinity receptor at the protein level with varying predominance at each stage of follicle classifications. These results indicate that NGF, BDNF, NT-3,and TrkBare implicated in the folliculogenesis and may have an influential effect during the development and growth of the Zi Geese reproductive system.

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