Abstract
Minocycline is a semisynthetic second-generation tetracycline derivative, and many publications provide evidence of its successful neuroprotection in a variety of animal models. We searched PubMed and Chinese CNKI databases from January 1992 to May 2012 for studies on minocycline in neurodegenerative diseases in rodents. A meta-analysis that adopted weighted Cohen's d effect sizes, percent overlap, Fail-Safe N statistics, and confidence intervals was conducted. In total, 16 English and 3 Chinese articles with high or medium quality were included in this meta-analysis. The treatment benefits for rodents from low-dose (5 mg/kg/day), moderate-dose (45, 50, or 55 mg/kg/day), and high-dose (90 mg/kg/day) minocycline were larger in Huntington's disease, Alzheimer's disease, and stroke mouse models, respectively. In rats, a moderate dose (45 mg/kg/day) of minocycline was most effective. In conclusion, minocycline exerts neuroprotective effects in rodent models of neurodegenerative diseases. Anti-inflammatory, antiapoptotic, and antioxidant activities are discussed as the basis of this effect. However, there is insufficient information from these animal models on side effects of minocycline therapy.
Published Version
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