Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (18): 2867-2873.doi: 10.3969/j.issn.2095-4344.2015.18.014

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Olfactory experience modulates neuron expression in piriform cortex of adult guinea pigs after olfactory deprivation 

Liu Yuan-yue1, Hou Ju-hua1, Liu Fu-xiang2, Wang Wei2, He Xu2   

  1. 1Department of Pathology, Yiyang Medical College, Yiyang 413000, Hunan Province, China; 2Department of Human Anatomy, Yiyang Medical College, Yiyang 413000, Hunan Province, China
  • Received:2015-02-06 Online:2015-04-30 Published:2015-04-30
  • Contact: He Xu, Studying for doctorate, Assistant lecturer, Department of Human Anatomy, Yiyang Medical College, Yiyang 413000, Hunan Province, China
  • About author:Liu Yuan-yue, Associate professor, Department of Pathology, Yiyang Medical College, Yiyang 413000, Hunan Province, China
  • Supported by:

    grants from Hunan Provincial Education Ministry, No. 13C958

Abstract:

BACKGROUND: Animal experiments and clinical studies have shown that, functional deprivation at the early development stage may possibly cause nerve and cognition dysfunction at adulthood. However, no research focuses on the effect of olfactory function on the neurogenesis in piriform cortex of adult guinea pigs.
OBJECTIVE: To establish olfactory deprivation models and explore the effect of olfactory experience on the distribution of doublecortin, parvalbumin, glutamic acid decarboxylase 67 and the co-localization of doublecortin with neuron-specific nuclear-binding protein in piriform cortex of adult guinea pigs.
METHODS: Twenty guinea pigs were randomly divided into two groups. Olfactory deprivation models were established through unilateral naris-occlusion and the occluded animals were allowed to survive 3 and 6 weeks, then the specimens were harvested. The distribution of doublecortin, parvalbumin, glutamic acid decarboxylase 67 was detected with immunohistochemistry. The co-localization of doublecortin with neuron-specific nuclear-binding protein in piriform cortex of adult guinea pigs was determined with immunofluorescence method.
RESULTS AND CONCLUSION: The number of doublecortin, parvalbumin, glutamic acid decarboxylase 67 positive cells in piriform cortex at the undeprived side was significantly higher than that at the deprived side at 3 and 6 weeks (P < 0.05). There was no significant difference in the co-localization of doublecortin with neuron-specific nuclear-binding protein in piriform cortex at 3 weeks group and 6 weeks group (P > 0.05). The findings suggest that olfactory experience promotes the maturation and differentiation of neurons in piriform cortex of adult guinea pigs.



中国组织工程研究
杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程


全文链接:

Key words: Olfactory Sensation, Microtubule-Associated Protein, Neuron-Specific Nuclear-Binding Protein

CLC Number: