This article contains findings obtained from research on animals:
- The results from animal research studies should not be directly applied to humans and the results may not generalise to the human population.
- There may be significant differences between species in terms of physiology, physiology, and pharmacology, as well as differences in the way diseases and treatments are modelled in animals.
- Any conclusions drawn from animal research should be considered with caution and in the context of other types of research studies such as observational studies, clinical trials, and reviews of the literature.
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Xiao Yao San has potential as an effective and safe alternative treatment for depression, offering multiple mechanisms of action for its antidepressant effects.
2022 Frontiers in Pharmacology Research progress on classical traditional chinese medicine formula xiaoyaosan in the treatment of depression Chen J, Lei C, Li X, Wu Q, Liu C, Ma Q, et al.
Review Article Depression Xiao Yao San
The article discusses the use of Xiaoyaosan, a traditional Chinese medicine formulation, in the treatment of depression. It reviews recent evidence from animal and clinical studies, highlighting the pharmacological mechanisms and effective components involved in the antidepressant effects of Xiaoyaosan. The review explores various factors such as neurotransmitters, neuroplasticity, inflammatory response, gut-brain axis, oxidative stress, and autophagy that contribute to its therapeutic effects. The article emphasizes the potential of Xiaoyaosan as an alternative therapy for depression and provides an overview of its mechanisms of action.
Xiao Yao San can improve symptoms and reduce recurrence rates in patients with disorders of gut-brain interaction.
2022 Frontiers in Pharmacology Efficacy and Safety of Chinese Herbal Medicine Xiao Yao San in Functional Gastrointestinal Disorders: A meta-Analysis and Trial Sequential Analysis of Randomized Controlled Trials Liu Q, Shi Z, Zhang T, Jiang T, Luo X, Su X, et al.
Systematic Review Constipation Functional gastrointestinal disorders Indigestion
The paper's methodology involved a meta-analysis of randomized controlled trials found in seven databases, up until November 22, 2021. The trials, which totaled 48 all together, were included to determine the efficacy of Xiao-Yao-San in treating disorders of gut-brain interaction (previously known as functional gastrointestinal disorders). A range of measures, including therapeutic efficacy, symptom score, Self-Rating Anxiety Scale score, Self-Rating Depression Scale score, and the recurrence rate, were analysed using both random-effects and fixed-effects models, as well as trial sequential analysis.
In terms of results, Xiao-Yao-San showed a marked improvement in the effective rate of managing disorders of gut-brain interaction compared to western drugs, both when used alone and in combination with western medicine. The paper also found the treatment notably reduced symptom scores, anxiety scores, and depression scores for patients with the disorder. Further, instances of recurrence were also reduced. Overall, Xiao-Yao-San was well tolerated and no serious adverse events were reported in any of the trials included in this analysis.
Xiao Yao San and its modifications were effective for the improvement of general symptoms and fatigue severity in chronic fatigue syndrome post-treatment.
2020 Journal of Physiology & Pathology in Korean Medicine Effectiveness of Soyo-san (Xiaoyao-san) and its Modifications on Chronic Fatigue Syndrome: a Systematic Review and Meta-analysis Kim J, Song J, Nam D
Systematic Review Chronic Fatigue Syndrome Xiao Yao San
We performed selection/exclusion process from the found studies to conform with prespecified criteria, and assessed the final included trials according to the Cochrane risk of bias tool. The included studies were classified based on the interventions in experimental and control group.
Eight randomized controlled trials and one controlled clinical trial (total 921 participants) were eligible and their results were synthesized in the meta analysis. The synthesis showed a considerable effect of Soyo-san and its modifications on improvement of general symptoms and fatigue severity in CFS patients, while effect on depression and anxiety were inconclusive.
TCM pattern-based treatments for depression frequently use Xiao Yao and Chai Hu Shu Gan decoctions, with Bai Shao and Chai Hu herbs common across different TCM patterns.
2015 Evidence-Based Complementary and Alternative Medicine Prescription of Chinese Herbal Medicine in Pattern-Based Traditional Chinese Medicine Treatment for Depression: A Systematic Review Yeung WF, Chung KF, Ng KY, Yu YM, Zhang SP, Ng BFL, et al.
Systematic Review Chai Hu Chai Hu Shu Gan San Depression
The methodology incorporated a systematic review of randomized controlled trials from both Chinese and English literatures regarding traditional Chinese medicine (TCM) pattern-based treatments for depression. This encompassed a total of 61 studies and 2504 subjects across 27 TCM patterns. Due to varied TCM patterns among participants, the analysis focused on the four most prevalent ones: liver qi depression, liver depression and spleen deficiency, dual deficiency of the heart and spleen as well as liver depression and qi stagnation.
In the discussion of results, it was found that Xiaoyao decoction was most frequently used for the treatment of liver qi depression and liver depression with spleen deficiency, whereas Chaihu Shugan decoction was typically used for liver depression and qi stagnation. Commonly used herbs regardless of the prescribed Chinese herbal formulas included Bai Shao and Chai Hu. Typically, the individual studies did not provide an underlying rationale for herb selection, limiting the conclusions one could draw regarding the efficacy of certain herbal formulas and the response of specific TCM patterns to these treatments.