Uric Acid Lowering Effect of Thymoquinone in Potassium Oxonate-Induced Hyperuricemic Rats

Authors

  • Syed Muhammad Saad Gardezi Quaid e Azam Medical College, Bahawalpur.
  • Moneeb Ashraf King Edward Medical University, Lahore.
  • Sadaf Humayun Khan Allama Iqbal Medical College, Lahore.
  • Hassan Farooq Allama Iqbal Medical College, Lahore.
  • Amer Hassan Siddiqui Ameer Ud Din Medical College, Lahore.
  • Sana Tufail Quaid e Azam Medical College, Bahawalpur.

DOI:

https://doi.org/10.47489/szmc.v40i2.854

Keywords:

Hyperuricemia, Thymoquinone, Potassium Oxonate, Allopurinol

Abstract

Background:  High serum uric acid levels lead to hyperuricemia, which, if left untreated, can result in gout, metabolic syndrome and can also be an aggravating factor in renal and cardiovascular conditions. Nowadays xanthine oxidase inhibitors and uricosuric drugs are used to treat hyperuricemia. Thymoquinone, derived from Nigella Sativa Linn, can be explored for its potential uric acid lowering effects.

Objective: To evaluate the effect of Thymoquinone on serum and urinary uric acid in potassium oxonate induced hyper-uricemic rats.

Method: This experimental study was conducted at the Post Graduate Medical Institute, Lahore from January 2021 -January 2022. Twenty-four rats were randomly divided into four groups (A-D). Group A and B were taken as normal and disease control respectively. Groups B- D were injected intraperitoneal potassium oxonate on days 1, 3 and 7 to induce hyperuricemia. Group C was given oral Allopurinol (5mg/kg) whereas Group D was treated with Thymoquinone at 20 mg/kg orally for seven consecutive days. Serum and urine samples were taken on days 0, 1, 3 and 7, while serum and urinary creatinine levels on day 0 and 7 were obtained to estimate fractional excretion of uric acid. Data was analyzed and processed by SPSS version 24. (p value ? 0.05 was considered significant)

Results: A significant reduction in serum uric acid levels (p-value <0.001) was seen from day 1 to 7 in Thymoquinone treated group when compared to the disease control, whereas this difference was insignificant when compared to Allopurinol treated group. Thymoquinone treated group also showed significantly increased urinary uric acid levels on day 7 (p-value <0.001). 

Conclusion: Thymoquinone effectively lowers serum uric acid levels and shows an increase in urinary uric acid levels. It also enhances urine volume and fractional excretion of uric acid (FEUA %). These effects suggest its potential in preventing or treating hyperuricemia.

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Published

2026-07-15

How to Cite

1.
Gardezi SMS, Ashraf M, Khan SH, Farooq H, Siddiqui AH, Tufail S. Uric Acid Lowering Effect of Thymoquinone in Potassium Oxonate-Induced Hyperuricemic Rats . Proceedings S.Z.M.C [Internet]. 2026 Jul. 15 [cited 2026 Sep. 14];40(2):239-44. Available from: https://www.proceedings-szmc.org.pk/index.php/szmc/article/view/854