Efficacy of Herbal Medicine in Hand Osteoarthritis: A Narrative Review.

OBJECTIVE: Osteoarthritis (OA) is one of the most prevalent joint disorders in the world that has placed an enormous economic and social burden on governments and healthcare sectors in many countries. Hand OA (HOA) is the most common peripheral arthritis, which is less investigated than knee and hip OA. Due to limited approved drug choices and adverse effects of long-term use of current regimens, we aimed to review the existing evidence that were used as oral herbal medicine to treat HOA. METHODS: The PubMed database was searched for both observational and interventional studies that have investigated herbal medicine safety and efficacy in HOA, written in English and published between 2010 and 2022. RESULTS: A total of 5 original articles fulfilled the inclusion criteria, and each article assessed a different herbal regimen. Overall, it seems desirable to add specific herbal treatments to the regimen of HOA patients, specifically in case of early stages of HOA. CONCLUSION: Currently, the need for a low-risk alternative treatment in HOA patients is felt more than ever. There are reliable references relating to the safety of Korean red ginseng, GCSB-5, XLGB, and GS-GCu in these patients, although their efficacy was limited. Additionally, herbs like curcumin and Boswellia serrata have positively affected patients with knee osteoarthritis. However, there is a lack of strong evidence supporting their effectiveness in hand osteoarthritis (HOA). This emphasizes the potential benefits that these herbs may have for HOA patients.

Evaluation of curcumin as add-on therapy in patients with Parkinson's disease: A pilot randomized, triple-blind, placebo-controlled trial.

BACKGROUND AND OBJECTIVE: Preclinical studies suggest that curcumin might be a potential neuroprotective agent in Parkinson's disease (PD). This clinical trial aimed to evaluate the efficacy of adding nanomicelle curcumin on improving the motor and non-motor symptoms of PD patients and their quality of life. MATERIAL AND METHODS: Idiopathic PD patients aged ≥30≥ 30 whose symptoms were under control were included in this pilot, randomized, triple-blind, placebo-controlled, add-on trial. Eligible patients were randomly assigned to either the curcumin (n = 30, 80 mg/day) or placebo (n = 30) groups and were followed for nine months. Primary outcomes were the Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) and Parkinson's Disease Questionnaire (PDQ-39). These variables, along with demographic data, drug history, and possible side effects of curcumin, were gathered at the beginning of the study and every three months. A mixed effects model was used to compare the group-by-time interaction, followed by post hoc analysis. RESULTS: Although the mean MDS-UPDRS and PDQ-39 scores were not significantly different between the curcumin and placebo groups at any time points, MDS-UPDRS part III (P = 0.04) showed a significant difference in its overall trend between the study groups. However, post hoc analysis failed to spot this difference at study time points. The most common side effects of curcumin were nausea and vomiting (P = 0.25) and gastroesophageal reflux (P = 0.42). CONCLUSION: While curcumin is a well-tolerated natural compound, this trial was unsuccessful in showing its efficacy in quality of life and clinical symptoms of PD patients.