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Thiamin status in furosemide-treated rats
1DMERC, United Arab Emirates University, Al-Ain.
Pharmacological Research
|June 22, 2000
Summary
Furosemide treatment in rats induced thiamin deficiency at higher doses. Supplementation with thiamin (vitamin B1) effectively reversed these biochemical signs, indicating its therapeutic potential.
Area of Science:
- Biochemistry
- Pharmacology
- Nutritional Science
Background:
- Furosemide is a diuretic drug with potential effects on vitamin metabolism.
- Thiamin (vitamin B1) is essential for carbohydrate metabolism and neurological function.
- Understanding drug-induced nutrient deficiencies is crucial for patient safety.
Purpose of the Study:
- To investigate the impact of furosemide on thiamin status in rats.
- To determine if thiamin supplementation can counteract furosemide-induced thiamin deficiency.
Main Methods:
- Rats received intraperitoneal furosemide (10-30 mg/kg/day) for 21 days.
- Thiamin status was assessed via liver, blood, and urine thiamin levels, erythrocyte transketolase (TK) activity, and thiamin pyrophosphate (TPP) effect.
- A secondary experiment involved co-administering furosemide with thiamin (20-100 µg/kg).
Main Results:
- Furosemide at 20 and 30 mg/kg/day significantly altered thiamin status indices, suggesting deficiency.
- The 10 mg/kg/day dose of furosemide did not show significant effects.
- High-dose thiamin supplementation (100 µg/kg) successfully reversed the biochemical signs of thiamin deficiency induced by furosemide.
Conclusions:
- Furosemide can induce biochemical thiamin deficiency in rats at doses of 20 mg/kg/day and above.
- Thiamin supplementation is effective in mitigating furosemide-induced thiamin deficiency.
- These findings highlight the importance of monitoring thiamin levels in patients receiving high-dose furosemide.
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