The Effects of Rhus Coriaria L. on Serum Uric Acid Levels

Not Applicable

• Conditions: Hyperuricemia
• Interventions: Drug: Rhus (Somagh); Drug: Placebo

• Registration Number: NCT02891031
• Lead Sponsor: Shiraz University of Medical Sciences

Brief Summary

The aim of this study is to evaluate the effects of Rhus coriaria L. (Rhus) commonly known as "Somagh" on serum uric acid levels.

Detailed Description

Rhus coriaria L.(Rhus) is a well-known spice widely consumed in the world which has also been utilized extensively for medicinal purposes. The antioxidant components of this plant made it a favorable target for laboratory and animal studies in different conditions such as oxidative stress cytotoxicity, diabetes and hyperlipidemia. Rhus (Somagh) is found in temperate and tropical regions worldwide, often growing in areas of marginal agricultural capacity. Rhus is used as an herbal remedy in traditional medicine because of its assumed analgesic, antidiarrheic, antiseptic, anorexic and antihyperglycemic properties. The fruits of Rhus contain flavonols, phenolic acids, hydrolysable tannins, anthocyans and organic acids such as malice, citric and tartaric acids. Some studies have shown that polyphenols could have beneficial effects on cardiovascular disease and cancer and could be regarded as bioactive compounds with a high potential health-promoting capacity. Phenolic compounds inhibit lipid peroxidation, scavenge the superoxide anion and hydroxyl radical, and enhance the activities of detoxifying enzymes.

Uric acid (UA; 7,9-dihydro-1H-purine-2,6,8(3H)-trione) has been implicated as a risk factor and cause of numerous disease states. Some disease states, such as gout, hypertension, and cardiovascular disease, have been shown to result when UA levels in the blood are too high. Hyperuricemia predicts the development of hypertension in the general population, and an independent positive correlation between UA levels and the occurrence of hypertension has been reported. Hyperuricemia may also be a risk factor for cardiovascular disease, myocardial infarction, and stroke.

The manipulation of serum UA levels has become a popular strategy in the treatment of a variety of diseases. This is either accomplished through dietary and lifestyle changes or through treatment with UA reducing drugs.

The aim of this study is to evaluate the effects of Rhus coriaria L. (Rhus) commonly known as Somagh on serum uric acid levels.

Study Timeline

• Study First Submitted: 2016-08-31
• Study First Submitted QC: 2016-08-31
• Study First Posted: 2016-09-07
• Status Verified: 2019-04
• Last Update Submitted: 2019-04-04
• Last Update Posted: 2019-04-08
• Study Start: 2019-06-01
• Primary Completion: 2019-11-01
• Study Completion: 2019-12-01

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 76

Inclusion Criteria

• Healthy individuals

Exclusion Criteria

• Serum uric acid levels that need medical treatment
• Gout
• Diabetes mellitus
• Hypo. or hyperthyroidism
• Any systemic illnesses e.g. liver cirrhosis, acute or chronic renal failure, heart failure
• Use of drugs: Uric acid lowering agents
• Pregnancy
• Lactation
• History of allergic reaction to Somagh

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Rhus (Somagh)	Rhus (Somagh)	500 mg twice daily after meal for 6 weeks
Placebo	Placebo	500 mg twice daily after meal for 6 weeks

Primary Outcome Measures

Name	Time	Method
serum uric acid levels	6 weeks

Secondary Outcome Measures

Name	Time	Method
Number of patients with adverse events.	6 weeks

Trial Locations

Locations (1)

Shahid Motahhari Clinic, Shiraz University of Medical Sciences; 🇮🇷 Shiraz, Fars, Iran, Islamic Republic of