Maggot analysis goes molecular for forensic cases

Maggots on a dead body or wound can help pinpoint when a person or animal died, or when maltreatment began in elder, child care or animal neglect cases. However, the current process for making this determination is time consuming and resource intensive. It also relies on species assessment by trained entomologists. Now, researchers report in ACS’ Analytical Chemistry the development of a molecular maggot analysis method that’s quick, easy and less subjective.

Pregnant blowflies, which can detect decomposing tissue from as far as 2 miles away, lay their eggs on remains within a few minutes or hours of death. After the eggs hatch, the emerging larvae known as maggots feed on the tissue.

Forensic investigators collect the larvae, and entomologists determine their species and life stage, which can reveal when death occurred. However, this analysis can be difficult because a body might be infested with a mass of eggs and larvae from several species, all mixed together. In addition, the larvae from different species are hard to tell apart, so they are typically raised to adulthood when they can be more reliably identified.

But that takes time and training that investigators might not have, and the larvae in the collected samples might not be alive at the time of examination. As a quicker and more objective alternative, researchers have tried DNA analysis to distinguish species, but genomes from many of these flies are unknown. So Rabi A. Musah and colleagues set out to develop a better method.

Building on their previous work on single-species determinations, the researchers optimized their method for multispecies analyses. They used a method called direct analysis in real time-high resolution mass spectrometry to obtain molecular information about various combinations of maggot species. Then, they developed a new hierarchical conformal predictor and applied it to the data. With this method, for the first time, maggots from mixtures of up to six species could be distinguished.

50 pensamientos sobre “Maggot analysis goes molecular for forensic cases”

  1. Long time supporter, and thought I’d drop a comment.

    Your wordpress site is very sleek – hope you don’t mind me asking what theme you’re using?
    (and don’t mind if I steal it? :P)

    I just launched my site –also built in wordpress like yours– but the theme slows
    (!) the site down quite a bit.

    In case you have a minute, you can find it by searching for “royal cbd” on Google (would appreciate any feedback) – it’s still in the works.

    Keep up the good work– and hope you all take care of yourself
    during the coronavirus scare!

  2. I like the valuable information you provide in your articles. I will bookmark your blog and check again here regularly. I’m quite sure I’ll learn lots of new stuff right here! Good luck for the next!|

  3. Hey! This post couldn’t be written any better! Reading this post reminds me of my previous room mate! He always kept talking about this. I will forward this article to him. Fairly certain he will have a good read. Thanks for sharing!|

  4. Its like you read my mind! You appear to know so much about this, like you wrote the book in it or something. I think that you can do with some pics to drive the message home a little bit, but instead of that, this is fantastic blog. A fantastic read. I will definitely be back.|

  5. hi!,I love your writing very much! share we keep up a correspondence more approximately your article on AOL? I require a specialist on this area to resolve my problem. Maybe that is you! Looking forward to look you. |

  6. I like the helpful info you provide on your articles. I’ll bookmark your blog and check once more right here frequently. I am fairly sure I’ll learn plenty of new stuff proper here! Good luck for the next!|

  7. Hey just wanted to give you a quick heads up and let you know a few of the pictures aren’t loading properly. I’m not sure why but I think its a linking issue. I’ve tried it in two different web browsers and both show the same results.|

  8. Hi, I do believe this is an excellent site. I stumbledupon it 😉 I may come back yet again since I book-marked it. Money and freedom is the greatest way to change, may you be rich and continue to help others.|

  9. Hi there would you mind letting me know which webhost you’re working with? I’ve loaded your blog in 3 different browsers and I must say this blog loads a lot faster then most. Can you suggest a good web hosting provider at a reasonable price? Thanks, I appreciate it!|

Deja un comentario