Forensic entomotoxicology: Current concepts, trends and challenges

Chophi, Rito; Sharma, Spriha; Sharma, Sahil; Singh, Rajinder

doi:10.1016/j.jflm.2019.07.010

Cited by 56 publications

(43 citation statements)

References 77 publications

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“…Ponadto stężenia leków wykazują większą stabilność w organizmach owadów niż w pobranych pośmiertnie próbkach tkanek ludzkich [157]. Dzieje się tak na skutek magazynowania związków chemicznych w strukturze molekularnej zewnętrznej osłony chitynowej pokrywającej ciało owadów [130], gdzie zachowują stabilność i przez dłuższy okres nie ulegają zmianom [158,159].…”

Section: Wykrywanie Substancji W Tkankach Owadów (Entomotoksykologia)unclassified

“…Moreover, drug concentrations are more stable in insects than post-mortem tissues [157]. This is because of storing of these chemicals within the molecular structure of the outer chitin covering of the insect [130] that can remain unaffected and unchanged for an extended period of time [158,159].…”

Section: Detect Substances In Insect Tissue (Entomotoxicology)mentioning

confidence: 99%

“…W organizmach owadów wykrywane są liczne substancje (leki, metale, pestycydy) [151]. W badaniach próbek stosuje się analizę radioimmunologiczną, HPLC, GC, GC-MS, chromatografię cienkowarstwową oraz chromatografię cieczową ze spektrometrią mas [116,159]. Opracowanie technik, które nie są niszczące ani inwazyjne dla owadów stanowiących materiał dowodowy, jest cenne, zwłaszcza jeśli dowody entomologiczne są potrzebne do innych analiz [161,162].…”

Section: Detect Substances In Insect Tissue (Entomotoxicology)unclassified

“…A wide variety of substances (drugs, metals and pesticides) have been detected in insect of different species in a forensic context [151]. The analytical methods of insect samples have been used like radio-immune-analysis (RIA), HPLC, GC, GC-MS, thin layer chromatography (TLC) and liquid chromatography-mass spectrometry (LC-MS) [116,159].With development of quantification methods which are not destructive or invasive to insect evidence, this could be of high value, especially if entomological evidence is also needed to other analysis [161,162]. The main challenge of entomotoxicology is its validity as a source of forensic evidence and it has not been evaluated rigorously.…”

Section: Wykrywanie Pozostałości Po Wystrzale I Wybuchumentioning

confidence: 99%

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Applications of forensic entomology: overview and update

Aly

Aldeyarbi

2020

amsik

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Streszczenie Mimo ogromnych postępów w badaniach podstawowych i stosowanych entomologia sądowa stale się rozwija i jest uznawana za interdyscyplinarną dziedzinę wiedzy. W zestawieniu z innymi naukami prawnymi i biologicznymi publikacje z zakresu entomologii sądowej są jednak stosunkowo skromne, podobnie jak liczba entomologów sądowych. Głównym celem niniejszej pracy jest przedstawienie znaczenia entomologii sądowej przez omówienie jej zastosowań, czynności podejmowane przez entomologów mogą bowiem dostarczać istotnych informacji dotyczących czasu, miejsca i przyczyny śmierci, ułatwiać identyfikację sprawców i/lub ofiar przestępstwa, a w niektórych przypadkach także określać stan zaniedbania ofiar przed śmiercią. W pracy omówiono też możliwość wykorzystywania zdobyczy najnowocześniejszych technologii. Interdyscyplinarność prac badawczych umożliwi dalsze zgłębianie tej dziedziny, przyczyniając się do wytyczania nowych obszarów badań z korzyścią dla rozwoju nauki oraz zastosowań kryminalistycznych.

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Section: Wykrywanie Substancji W Tkankach Owadów (Entomotoksykologia)unclassified

Section: Detect Substances In Insect Tissue (Entomotoxicology)mentioning

confidence: 99%

Section: Detect Substances In Insect Tissue (Entomotoxicology)unclassified

Section: Wykrywanie Pozostałości Po Wystrzale I Wybuchumentioning

confidence: 99%

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Applications of forensic entomology: overview and update

Aly

Aldeyarbi

2020

amsik

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“…Entomotoxicological studies focus not only on the qualitative and quantitative analysis of toxicants, but also on their impact on insect growth, development, and survival, which enable an accurate determination of PMI. Although there have been some critiques of the use of entomotoxicology in forensic science (Gaudry et al, 2001 ; Tracqui et al, 2004 ), many studies have shown that insects can provide reliable evidence in toxicological analysis during criminal investigations (Silva et al, 2017 ; Chophi et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Puparial Cases as Toxicological Indicators: Bioaccumulation of Cadmium and Thallium in the Forensically Important Blowfly Lucilia sericata

et al. 2020

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In this study, we present entomotoxicological data on the accumulation of cadmium and thallium in a forensically important blowfly, Lucilia sericata, and evaluate the reliability and utility of such information as toxicological evidence for poisoning as a cause of death. We observed that Cd and Tl content in different growing stages of L. sericata (larvae, puparial cases, and adults) was increasing with increasing metal concentration in the feeding substrate, namely metal-enriched liver. However, patterns of accumulation differed between the two metals investigated, showing a linear relationship for Cd and a saturable pattern for Tl. For cadmium, the highest bioaccumulation factor (BAF) was found in the larval stage (in the range of 0.20–0.25), while for thallium, puparial cases accumulated more metal than the other stages tested (BAF in the range of 0.24–0.42). Thallium was also observed to have a negative effect on larval growth, resulting in lower weight and smaller puparial size. With this study, we update the information on the bioaccumulation of cadmium in forensically important blowflies and provide the first report on the bioaccumulation of thallium as well as its developmental impact in blowflies. Specifically, our results suggest that analysis of puparial cases could yield useful information for entomotoxicological investigations. The content of Cd and Tl in larvae, puparial cases, and adults of L. sericata was determined by inductively coupled plasma mass spectrometry (ICP-MS). The validation parameters of the method such as sensitivity, detection limits, quantification limits, precision, and accuracy were evaluated. The method detection limit (MDL) for all types of samples was in the range of 1.6–3.4 ng g−1 for Cd and 0.034–0.15 ng g−1 for Tl, and the accuracy of the method was confirmed by a high recovery of metals from certified reference materials (91.3% for Cd and 94.3% for Tl).

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A review on the effects of heavy metals on the development of blow flies (Diptera: Calliphoridae)

Raise,

Gemmellaro

2023

WIREs Forensic Science

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Heavy metals such as lead, cadmium, zinc, copper, mercury, and others, are naturally occurring non degradable elements which can accumulate in the environment and in living organisms and can have a significant impact on their physiological functions. Studies have shown that heavy metals can also influence the development and morphology of insects. Insects are the most abundant organisms on earth and play a major role in different ecosystems. They help in the dispersion of organic matter and are an important part of different ecological processes. Forensic entomology focuses on the use of arthropods in legal investigations. Shortly after death, a corpse is quickly colonized by several insect families; blow flies (Diptera: Calliphoridae) are among the first colonizers and are therefore often used for the estimation of the time of colonization (TOC) or minimum post‐mortem interval (mPMI). Since larvae feed on the corpse, any xenobiotic present in the remains, including heavy metals, can be ingested, and accumulated by them; these substances can influence their development and, in turn, can alter the estimation of the mPMI. We analyzed the literature on studies pertaining to the detection of heavy metals in blow flies and on their variations in developmental rate, mass, length, fecundity, morphology, immune system, and mortality rate.This article is categorized under: Forensic Biology > Forensic Entomology Forensic Anthropology > Time Since Death Estimation Forensic Biology > Interpretation of Biological Evidence

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Forensic entomotoxicology: Current concepts, trends and challenges

Cited by 56 publications

References 77 publications

Applications of forensic entomology: overview and update

Applications of forensic entomology: overview and update

Puparial Cases as Toxicological Indicators: Bioaccumulation of Cadmium and Thallium in the Forensically Important Blowfly Lucilia sericata

A review on the effects of heavy metals on the development of blow flies (Diptera: Calliphoridae)

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