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Lead removal in rats using calcium alginate
Olga V Savchenko1, Marina N Sgrebneva, Vladimir I Kiselev
1A.V. Zhirmunsky Institute of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, 17 Palchevskogo St., Vladivostok, 690041, Russia, olgavsavchenko@gmail.com.
Summary
Calcium alginate effectively removes lead (Pb) from rat organs and bones, especially at a 500 mg/kg dose. This treatment also helps normalize essential mineral levels, suggesting potential for heavy metal intoxication therapy.
Area of Science:
- Toxicology
- Biochemistry
- Pharmacology
Background:
- Lead (Pb) exposure, even at low levels, poses significant health risks.
- Understanding lead's tissue distribution and effective removal strategies is crucial for public health.
Purpose of the Study:
- To investigate lead tissue distribution in rats.
- To evaluate the efficacy of calcium alginate in removing lead from organs and bones.
- To assess calcium alginate's impact on essential element levels.
Main Methods:
- Experimental animals were exposed to lead acetate.
- Treatment involved varying doses of calcium alginate (500, 200, 100 mg/kg) for 28 days.
- Lead, calcium, manganese, iron, copper, and zinc levels were measured using inductively coupled plasma mass spectrometry.
Main Results:
- Lead acetate exposure increased Pb levels and decreased essential elements (Ca, Mn, Fe, Cu, Zn) in blood and organs.
- Calcium alginate at 500 mg/kg significantly reduced lead in kidneys, heart, and bones.
- Lower doses of calcium alginate showed less significant lead reduction; essential element levels were largely unaffected or normalized.
Conclusions:
- Calcium alginate, particularly at 500 mg/kg, is effective in removing accumulated lead from the body.
- It does not negatively impact essential mineral levels and may help restore their balance.
- Calcium alginate shows promise for treating and preventing heavy metal intoxications.

