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In vitro and in vivo removal efficacy of insoluble Prussian blue in combination with calcium polystyrene sulfonate for thallium

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Abstract

The similarities between thallium and potassium have suggested the use of calcium polystyrene sulfonate (CPS), an oral ion exchange resin, as a potential agent against thallium intoxication. Therefore, the study was an attempt to evaluate the efficacy of CPS and Prussian blue when given alone or in combination against thallium toxicity. The effect on binding capacity was investigated in terms of contact time, amount of CPS, influence of pH, simulated physiological solutions and interference of potassium ions. Also, rats were given single dose of thallium chloride (20 mg kg−1) and the treatment with PB and CPS was given for 28 days as CPS 30 g kg−1, orally, twice a day, PB 3 g kg−1, orally, twice a day and their combination. The effect of antidotal treatment was evaluated by calculating the thallium levels in various organs, blood, urine and feces. The results of the in vitro study indicated exceedingly quick binding in the combination of CPS and PB as compared to PB alone. Also, it was found that the binding capacity at pH 2.0 was considerably increased for PB with CPS (184.656 mg g−1) as compared to PB (37.771 mg g−1). Furthermore, statistically significant results were obtained in the in vivo study as after 7th day, thallium levels in blood of rats treated with combination were reduced by 64% as compared to control group and 52% as compared to alone PB treated group. Also, Tl retention in liver, kidney, stomach, colon and small intestine of combination treated rats was significantly reduced to 46%, 28%, 41%, 32% and 33% respectively, as compared to alone PB treated group. These findings demonstrate this as a good antidotal option against thallium intoxication.

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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed. Nidhi Sandal: Conceptualization, Supervision, Formal analysis and investigation, proof reading; Shelly Jain: data collection and data analysis or interpretation; Vivek Kumar: Statistical analysis, review and editing; Ashwani Koul and Ajay Kumar Singh: Supervision

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Correspondence to Nidhi Sandal.

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Jain, S., Kumar, V., Koul, A. et al. In vitro and in vivo removal efficacy of insoluble Prussian blue in combination with calcium polystyrene sulfonate for thallium. Biometals 36, 1125–1140 (2023). https://doi.org/10.1007/s10534-023-00508-7

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  • DOI: https://doi.org/10.1007/s10534-023-00508-7

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