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Oral Administration of Rotenone using a Gavage and Image Analysis of Alpha-synuclein Inclusions in the Enteric Nervous System
Published on: October 26, 2010
Pesticidal suicide: adult fatal rotenone poisoning
1Greater London Forensic Medical Practice, Dennis Geffen Health Annexe, St Pancras Gardens, Camley Street, Kings Cross, London NW1 0PP, UK. glfmp@btinternet.com
Abstract:
Rotenone is a pesticide and a piscicide derived from the derris root. The mechanism for the cytotoxicity is at mitochondrial level affecting cellular respiration. A suicide by rotenone poisoning in an adult is described. An innovative laboratory methodology was developed for the principal requirement of the Coroner to determine a positive or negative result to assist in the investigation of the death. The antemortem concentrations detected were 4.05 ng/ml [0.00405 ppm] in the blood and 0.55 ng/ml [0.00055 ppm] in the serum. Toxicity in human is rare and therefore the interpretation of the toxicology results is complicated by the unavailability of a data bank. The cause of death was attributed to rotenone toxicity based on the circumstantial evidence and expert pathological opinion on a balance of probability acceptable under the Coroners Act 1988 and Coroners Rules 1984 in England and Wales. The forensic clinicopathology of rotenone toxicity is discussed.
Insights
This study details a rare case of adult suicide by rotenone poisoning. A new lab method identified rotenone in blood and serum, aiding the coroner
Area of Science:
- Toxicology
- Forensic Pathology
- Biochemistry
Background:
- Rotenone, a natural pesticide and piscicide, exhibits cytotoxicity by inhibiting mitochondrial respiration.
- Human toxicity from rotenone is uncommon, complicating toxicological analysis due to limited data.
Observation:
- A case of adult suicide involving rotenone poisoning is presented.
- Antemortem blood and serum samples revealed rotenone concentrations of 4.05 ng/ml and 0.55 ng/ml, respectively.
- An innovative laboratory method was developed to detect rotenone for forensic investigation.
Findings:
- The cause of death was attributed to rotenone toxicity based on pathological evidence and legal standards.
- The developed laboratory methodology successfully identified rotenone in biological samples.
Implications:
- This case highlights the challenges in diagnosing and interpreting rotenone toxicity in forensic settings.
- The novel detection method provides a crucial tool for future investigations of rotenone poisoning.
- Understanding the forensic clinicopathology of rotenone is vital for accurate cause-of-death determination.
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