Blogs

From The Staff

Using Computing to Advance Toxicology

A discussion on the use of computer models to screen chemicals for their toxicity—virtually—and so avoid time-intensive and expensive toxicology screenings, including animal testing.

May 25, 2016

From The Staff Biology Chemistry Computer Medicine Technology

Ad Right

Chemicals have changed our lives, providing new products and capabilities, but sometimes causing harm to ourselves and the environment. Reducing exposure to toxic substances is in everyone’s interest, but most chemicals’ toxicity is unknown: Testing toxicity is expensive, takes time, and has often involved animal testing.

Now, scientists are starting to use computer models to predict such things as which chemicals will disrupt blood vessel development (pictured, research linked here) as well as other computational toxicology methods to test chemicals’ toxicity virtually.

Virtual vasculogenesis: a control model of early embryonic vascular plexus formation. Adapted from "A Computational Model Predicting Disruption of Blood Vessel Development" by and courtesy of Nicole Kleinstreuer. Center frame displays the first virtual step in a progression of interactions between endothelial cells (<em>red</em>), mural cells (<em>green</em>), and inflammatory cells (<em>yellow</em>). Around the outside, 7 images show the transformation after 5,000 Monte Carlo Steps in the simulation, each one showing the concentration (<em>low to high, which is blue to red</em>) of a different molecular signal that regulates the emergent capillary network.

In this podcast episode, I spoke with Nicole Kleinstreuer, Deputy Director of the National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods (NICEATM), about how computational toxicology is advancing toxicological screenings.



American Scientist Comments and Discussion

To discuss our articles or comment on them, please share them and tag American Scientist on social media platforms. Here are links to our profiles on Twitter, Facebook, and LinkedIn.

If we re-share your post, we will moderate comments/discussion following our comments policy.

×

AMSCI ICON NAVIGATION:

  • Navigation Menu
  • Help
  • My AmSci
  • Select Options (not present on all pages)

Click "American Scientist" to access home page