Effects of acupuncture on cartilage p38MAPK and mitochondrial pathways in animal model of knee osteoarthritis: A systematic evaluation and meta-analysis od Jiang-nan Ye, Cheng-guo Su, Yu-qing Jiang, Yan Zhou, Wen-xi Sun, Xiao-xia Zheng, Jin-tao Miao, Xiang-yue Li, Jun Zhu