Panupong Puttarak
Prince of Songkla University, Thailand
Title: Systematic review and meta-analysis of Centella asiatica (L.) Urb. on mood and cognitive function
Biography
Biography: Panupong Puttarak
Abstract
Statement of the Problem: Centella asiatica (L.) Urb. has a long history as herb for brain tonic, mental disorders and memory-enhancing in Asia. A number of clinical studies of C. asiatica on mood and cognitive effect have been reported. However, no summarizes the overall evidence of C. asiatica on cognitive function. Methodology & Theoretical Orientation: This study aims to determine the effects of C. asiatica on mood and cognitive function. International and Thai databases were searched for clinical studies investigating C. asiatica. Outcomes of interest were any measure on mood and cognitive function. Mean changes of the outcomes from baseline were compared by standardized mean difference. Findings: Eleven randomized controlled trials involving 642 patients were included. C. asiatica could increase alert score [SMD: 0.71 (95%CI; 0.01 to 1.41); p = 0.046, I2 = 30.5%] and decrease anger score at 1 hour after treatment [SMD: -0.81 (95%CI; -1.51 to -0.09); p = 0.026, I2 = 36.6%]. Overall effects indicated no significant differences between C. asiatica and comparators on every cognitive domain except a comparison of combination products which could decrease time of problem solving in executive function domain [SMD: -0.77 (95%CI; -1.26 to -0.27); p = 0.002, I2 = 0.0%] compared with a comparator. No study reported adverse effect of C. asiatica. Conclusion & Significance: C. asiatica could increase alert and decrease anger score. However, C. asiatica has no clinical effect on cognitive function. Future well-designed clinical trials of standardized C. asiatica are still needed.