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Effect of vanadium on L-ascorbic acid concentration in rat tissues
1Department of Cell Biology, Maria Curie-Skłodowska University, Lublin, Poland.
Abstract:
1. Two-month old Wistar rats of both sexes received, as sole drinking liquid, an aqueous solution of ammonium metavanadate (AMV) at a concentration of 0.01, 0.05, 0.15 and 0.30 mg V/ml (corresponding to 0.2, 1, 3 and 6 mM solution) over 4 weeks. 2. In the animal groups receiving AMV solution of 0.15 or 0.30 mg V/ml concentrations to drink, a statistically significant decrease of the uptake of food and AMV solution was observed, as compared with food and water taken up in the same time by the control group. 3. Moreover, a distinct decrease of the L-ascorbic acid level was noted in the liver, kidneys, spleen and adrenals. These differences proved statistically significant in single cases of animals receiving a solution of 0.05 and 0.15 mg V/ml concentration and in all animals given the solution at the highest vanadium concentration.
Insights
High concentrations of ammonium metavanadate (AMV) in drinking water reduced food and fluid intake in Wistar rats. Vanadium exposure also significantly depleted L-ascorbic acid levels in multiple organs.
Area of Science:
- Toxicology
- Environmental Health
- Nutritional Biochemistry
Background:
- Vanadium compounds, such as ammonium metavanadate (AMV), are industrial byproducts and can enter the environment.
- Understanding the toxicological effects of vanadium exposure is crucial for assessing human and animal health risks.
Purpose of the Study:
- To investigate the effects of chronic oral exposure to ammonium metavanadate (AMV) on Wistar rats.
- To assess the impact of AMV on food and fluid intake and L-ascorbic acid levels in various organs.
Main Methods:
- Wistar rats were administered aqueous solutions of AMV at concentrations ranging from 0.01 to 0.30 mg V/ml for four weeks.
- Food and fluid consumption were monitored.
- L-ascorbic acid levels were measured in the liver, kidneys, spleen, and adrenal glands.
Main Results:
- Significant reductions in food and AMV solution intake were observed in rats receiving 0.15 and 0.30 mg V/ml AMV.
- A notable decrease in L-ascorbic acid levels was found in the liver, kidneys, spleen, and adrenals.
- These L-ascorbic acid reductions were statistically significant at higher AMV concentrations (0.05, 0.15, and 0.30 mg V/ml).
Conclusions:
- Chronic exposure to ammonium metavanadate at higher concentrations impairs appetite and fluid intake in rats.
- Vanadium exposure leads to significant depletion of L-ascorbic acid (Vitamin C) in key organs, suggesting metabolic disruption.