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Acute and chronic arsenic toxicity

2003/07/01 by R N Ratnaike, Ranjit N. Ratnaike · 1,174 citations
Biochemistry, Genetics and Molecular Biology · Chemistry · Environmental Science · Medicine · #Acne and Rosacea Treatments and Effects #Arsenic #Arsenic contamination and mitigation #Arsenic contamination of groundwater #Arsenic poisoning #Arsenic toxicity #Arsenic trioxide #Chemistry #Chronic toxicity #Ingestion #Internal medicine #Medicine #Nausea #Retinoids in leukemia and cellular processes #Surgery #Toxicity

paper · pdf · doi:10.1136/pmj.79.933.391

published in Postgraduate Medical Journal 79(933), 391-396 (Oxford University Press)

openalex publication_date 2003/07/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

Arsenic toxicity is a global health problem affecting many millions of people. Contamination is caused by arsenic from natural geological sources leaching into aquifers, contaminating drinking water and may also occur from mining and other industrial processes. Arsenic is present as a contaminant in many traditional remedies. Arsenic trioxide is now used to treat acute promyelocytic leukaemia. Absorption occurs predominantly from ingestion from the small intestine, though minimal absorption occurs from skin contact and inhalation. Arsenic exerts its toxicity by inactivating up to 200 enzymes, especially those involved in cellular energy pathways and DNA synthesis and repair. Acute arsenic poisoning is associated initially with nausea, vomiting, abdominal pain, and severe diarrhoea. Encephalopathy and peripheral neuropathy are reported. Chronic arsenic toxicity results in multisystem disease. Arsenic is a well documented human carcinogen affecting numerous organs. There are no evidence based treatment regimens to treat chronic arsenic poisoning but antioxidants have been advocated, though benefit is not proven. The focus of management is to reduce arsenic ingestion from drinking water and there is increasing emphasis on using alternative supplies of water.

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