Evidence map›Paper›PMID 40419760›Full record

ArticleForensic toxicology2025

Evaluating the value of entomotoxicology in forensic toxicology casework using the first minipig model.

Olwen C Groth, Anaëlle Pi, Andres E Jensen, Frank Reckel, Jiri Hodecek, Abderrahmane Kori Yahia, Susan Rahaus, Martin H Villet, Matthias Graw

Abstract read
In one paragraph

Article in Forensic toxicology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Olwen C GrothInstitute of Forensic Medicine, Ludwig-Maximilians-Universität in Munich, Nussbaumstrasse 26, 80336, Munich, Germany. olwen.groth@med.uni-muenchen.de.ORCID 0000-0002-5393-5569
Anaëlle PiInstitute of Forensic Medicine, Ludwig-Maximilians-Universität in Munich, Nussbaumstrasse 26, 80336, Munich, Germany.
Andres E JensenEllegaard Göttingen Minipigs A/S, 4261, Dalmose, Denmark.
Frank ReckelBavarian State Criminal Police Office, Forensic Science Institute, Maillingerstrasse 15, 80636, Munich, Germany.
Jiri HodecekSwiss Human Institute of Forensic Taphonomy, University Centre of Legal Medicine, Chemin de La Vulliette 4, 1000, Lausanne, Switzerland.
Abderrahmane Kori YahiaInstitute of Forensic Medicine, Ludwig-Maximilians-Universität in Munich, Nussbaumstrasse 26, 80336, Munich, Germany.ORCID 0009-0000-9715-1398
Susan RahausInstitute of Forensic Medicine, Ludwig-Maximilians-Universität in Munich, Nussbaumstrasse 26, 80336, Munich, Germany.
Martin H VilletDepartment of Zoology and Entomology, Rhodes University, Makhanda, 6140, South Africa.ORCID 0000-0002-4335-5667
Matthias GrawInstitute of Forensic Medicine, Ludwig-Maximilians-Universität in Munich, Nussbaumstrasse 26, 80336, Munich, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeA principal objective of forensic entomotoxicology is to apply insect specimens for post-mortem toxicological analysis. Successful identification of drugs in necrophagous insects may depend on pharmacokinetic processes occurring in larvae. We thus applied a model system involving Lucilia sericata (Meigen, 1826) (Diptera, Calliphoridae) to investigate pharmacokinetics of diazepam in larvae in vitro, followed by a field experiment with Göttingen Minipigs.

methodsLucilia sericata larvae were fed one of four diazepam concentrations at constant temperature, sampled regularly, and analysed for diazepam and metabolites by liquid chromatography tandem mass spectrometry (LC-MS/MS). Two Göttingen Minipigs of 60 kg each were euthanised one hour after oral administration of 25 mg/kg diazepam and placed outdoors. While available, samples of peripheral blood, cardiac blood, liver, and fly larvae were collected over 70 days. Extracts from porcine samples and larvae were analysed by LC-MS/MS. Some larvae were bred to adulthood and identified morphologically together with 718 larvae.

resultsOxazepam was a primary metabolite of diazepam in L. sericata larvae. The most prevalent fly species on minipig carcasses were Lucilia caesar (Linnaeus, 1758) (Diptera, Calliphoridae) and Lucilia illustris (Meigen, 1826) (Diptera, Calliphoridae). Diazepam and metabolites were detected in all larval samples, even weeks after porcine samples were unacquirable due to post-mortem decomposition. Ratios of oxazepam and nordazepam to diazepam concentrations in larvae were significantly higher than in associated porcine samples, confirming metabolism in larvae.

conclusionThese findings are relevant to forensic casework, as there is potential for misinterpreting that the deceased consumed oxazepam or nordazepam rather than diazepam. This caution may also apply to other drugs that can form through metabolism in larvae.

Indexed as

CalliphoridaeDiazepamDipteraAnimalsChromatography, LiquidFeeding BehaviorForensic EntomologyForensic ToxicologyLarvaLiverModels, AnimalSwineSwine, MiniatureTandem Mass SpectrometryDiazepamDiazepamForensic entomotoxicologyGöttingen MinipigsLucilia caesarLucilia sericataOxazepam

Identifiers

PMID40419760
PMCPMC12241295

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.