AI Article Synopsis
- The study aimed to explore how Qi-Fang-Xi-Bi-Granules (QFXBGs) affect knee cartilage and the methylation of the C/ebp gene, which is related to inflammation and cartilage health.
- Rats with induced knee osteoarthritis (KOA) were divided into groups that received various doses of QFXBGs for 8 weeks, after which their knee joint tissue was analyzed through different microscopic and staining techniques.
- Results indicated that QFXBGs improved cartilage condition, with significant changes in cartilage structure and increased methylation of specific C/ebp gene promoters, suggesting its potential to combat cartilage degeneration in KOA.
Article Abstract
Objective: To investigate the effects of Qi-Fang-Xi-Bi-Granules (QFXBGs) on cartilage morphology and methylation of C/ebp (CCAAT/enhancer binding protein) at the promoter region.
Methods: Knee osteoarthritis (KOA) modeling was performed in rats in accordance with Hulth's method, and control group received sham operation. Eight weeks after KOA modeling, the rats in the KOA modeling group were further divided into 6 groups. Each group was given the appropriate drug. After 8 weeks, half of the rats were used for Micro-CT scan, HE staining, ABH/OG staining, immunohistochemistry, and TUNNEL staining of the knee joint tissue, and the other half were used to examine C/ebp promoter methylation.
Results: The three dose groups of QFXBGs all showed lower degrees of surface fissures and flaking, thicker cartilage layer, and restored chondrocyte and subchondral bone morphology, compared with the KOA model group. C/ebp-22 promoter methylation levels in the high- and low-dose groups were significantly higher than that in the KOA modeling group ( < 0.05), while C/ebp-2 promoter methylation level in the medium-dose group was significantly higher than that in the KOA modeling group ( < 0.05).
Conclusions: QFXBGs may alleviate articular cartilage degeneration through promoting C/ebp-2 or C/ebp-22 methylation at specific promoter sites.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5833195 | PMC |
| http://dx.doi.org/10.1155/2018/2074976 | DOI Listing |
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