Research: CAMFIELD and COLLEAGUES,

Listed in Issue 205

Abstract

CAMFIELD and COLLEAGUES, National Institute of Complementary Medicine Collaborative Centre for Neurocognition, Brain Sciences Institute, Swinburne University of Technology, Melbourne, Australia. dcamfield@swin.edu.au  review the research literature regarding nutraceuticals – natural products for Obsessive-compulsive disorder (OCD).

Background

Obsessive-compulsive disorder (OCD) is a debilitating mental illness which has a significant impact on quality of life. First-line SSRI treatments for OCD typically are of limited benefit to only 40-60% of patients, and are associated with a range of adverse side effects.

Methodology

Current preclinical research investigating nutraceuticals (natural products) for OCD, reveals encouraging novel activity in modulating key pathways suggested to be involved in the pathogenesis of OCD (glutamatergic and serotonergic pathway dysregulation). Emerging clinical evidence also appears to tentatively support certain nutrients and plant-based interventions with known active constituents which modulate these pathways: N-acetlycysteine, myo-inositol, glycine, and milk thistle (Silybum marianum).

Results

The serotonin precursor tryptophan is unlikely to be of use in treating OCD while 5-HTP may possibly be a more effective precursor strategy. However, there is currently no clinical evidence to test the efficacy of either of these substances. Currently the balance of clinical evidence does not support the use of St. John's wort (Hypericum perforatum) in OCD. CONCLUSIONS: While clinical research in this area is in its infancy, further research into nutraceuticals is warranted in light of the promising preclinical data regarding their mechanisms of action and their favourable side effect profiles in comparison to current SSRI treatments. It is recommended that future clinical trials of nutraceutical treatments for OCD utilize randomized placebo-controlled study designs and considerably larger sample sizes in order to properly test for efficacy.

Conclusion

References

Camfield DA, Sarris J and Berk M. Nutraceuticals in the treatment of obsessive compulsive disorder (OCD): a review of mechanistic and clinical evidence. [Review] Progress in Neuro-Psychopharmacology & Biological Psychiatry. 35(4):887-95. Jun 1 2011.

Munro Hall Clinic 2019

IJCA 2018 New Skyscraper

Scientific and Medical Network 2

Cycle India 2020

Walk on the Wide Side Trek Kenya 2020

Big Heart Bike Ride South Africa 2020

top of the page