Chinese Journal of Tissue Engineering Research ›› 2017, Vol. 21 ›› Issue (32): 5140-5145.doi: 10.3969/j.issn.2095-4344.2017.32.010

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Yaotu Granules regulate the Fas/FasL expression in a rabbit model of lumbar disc degeneration

He Sheng-hua1, Lai Ju-yi2, Wang Ye-guang1, Sun Zhi-tao1, Wang Jian1, Feng Hua-long2, Huang Fei-qiang2   

  1. (1Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518000, Guangdong Province, China; 2Shenzhen Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen 518000, Guangdong Province, China)
  • Received:2017-06-26 Online:2017-11-18 Published:2017-11-15
  • About author:He Sheng-hua, Master, Chief physician, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518000, Guangdong Province, China
  • Supported by:

    the Science and Technology Program of Shenzhen, No. JCYJ20150401163247232; the Project of Guangdong Provincial Department of Science and Technology, No. 2015[110]; the Project of Traditional Chinese Medicine Bureau of Guangdong Province, No. 20162126

Abstract:

BACKGROUND: Yaotu Granules have been proved to protect human nucleus pulposus cells and delay their degeneration. Notably, Yaotu Granules for lumbar disc herniation has achieved good clinical results.
OBJECTIVE: To investigate the effect of the herbal compound formula Yaotu Granules on the Fas/FasL expression in a rabbit model of lumbar disc degeneration, and further elucidate the underling mechanism of preventing and treating lumbar disc degeneration.
METHODS: Twenty New Zealand white rabbits were enrolled and the models of lumbar disc degeneration were established by minimally invasive puncture and rotation cutting, followed by randomized into normal saline, low-, middle-, and high-dose groups (n=5 per group). 10 mL of normal saline, 10, 20, and 40 mL of water decoction of Yaotu Granules were administered intragastrically into the normal saline, low-, middle-, and high-dose drug groups for 21 days, twice daily, respectively. Subsequently, the expression level of Fas/FasL in the rabbit nucleus pulposus cells in each group was detected.
RESULTS AND CONCLUSION: The signal intensity of the rabbit lumbar disc on MRI was decreased, and ruptured annulus and posterior herniated disc were visible at 12 weeks after modeling. Masson staining showed that the nucleus pulposus cells arranged in disorder, and even ruptured. Additionally, safranin O staining found that the number of nucleus pulposus cells was decreased obviously. The order of the relative expression levels of Fas and FasL mRNA in the nucleus pulposus cells was as follows: normal saline group > low-dose drug group > middle-dose drug group > high-dose drug group (P < 0.05). These results suggest that Yaotu Granules delay the rabbit lumbar disc degeneration by downregulating the expression level of Fas/FasL.

 

Key words: Lumbar Vertebrae, Intervertebral Disk Degeneration, Fas Ligand Protein, Tissue Engineering

CLC Number: