Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (49): 7384-7390.doi: 10.3969/j.issn.2095-4344.2016.49.013

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Establishing hair cell damage model in the animal Corti organ with Qi deficiency and blood stasis

Peng Gui-yuan, Li Song-jian, Yang Li, Yang Chao-jie, Tan Chuan   

  1. Department of Otolaryngology, Traditional Chinese Medicine Hospital of Guangdong Province, Guangzhou 510120, Guangdong Province, China
  • Received:2016-09-07 Online:2016-11-30 Published:2016-11-30
  • About author:Peng Gui-yuan, M.D., Master’s supervisor, Associate professor, Department of Otolaryngology, Traditional Chinese Medicine Hospital of Guangdong Province, Guangzhou 510120, Guangdong Province, China
  • Supported by:

    the Project of Science and Technology Commission of Guangdong Province, China, No.2013-163

Abstract:

BACKGROUND: Traditional Chinese medicine holds therapeutic potential for deafness and tinnitus, but there is a lack of in-depth research about the underlying mechanism, so establishing an animal model maybe helpful to explore the mechanism.
OBJECTIVE: To establish hair cell damage model in the Corti organ with Qi deficiency and blood stasis in guinea pigs, and to assess its effects.
METHODS: Twelve adult guinea pigs were randomly divided into normal control and model groups by random number table method. Guinea pigs in the model group were firstly treated with the modified relieving stagnated Qi and abnormal starvation for 15 days to model Qi deficiency, and then stimulated hair cell damage with blood stasis by photochemical induction. The controls received no intervention. Subsequently, the detection of serum D-xylose content and DPOAE test were performed, and the cochlea morphology was observed under light microscope.
RESULTS AND CONCLUSION: (1) The serum D-xylose content in the model group was significantly lower than that in the normal control group (P < 0.01). (2) DPOAE test revealed that the amplitudes of 1 560 and 3 125 Hz in the model group were lower than those in the normal control group and before modeling (P < 0.01). (3) In the model group, hemangiectasis and microthrombosis appeared in the spiral ligament, microvascular basement membrane and modiolus capillaries, and stria vascularis presented edema and degeneration; degeneration, necrosis or loss of hair cells were visible in the Corti organ. (4) To conclude, the model of hair cell damage in the guinea pig with Qi deficiency and blood stasis is established successfully, which will provide a research tool for figuring out the mechanism underlying the traditional Chinese medicine for treating deafness and tinnitus, especially sudden hearing loss.

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

Key words: Hair Cells, Auditory, Organ of Corti, Tinnitus, Guinea Pigs, Models, Animal, Tissue Engineering

CLC Number: