See-Through Mice May Sound Icky, But They're Useful to Scientists

See-Through Mice May Sound Icky, But They're Useful to Scientists

Researchers have found a way to make see-through mice — but don't worry, these critters won't be scampering in your kitchen.

(NBC News) -- Researchers have found a way to make see-through mice — but don't worry, these critters won't be scampering in your kitchen.

The transparent rodents aren't alive and they're for research only, to help scientists study fine details of anatomy.

Before they are treated with chemicals, the animals are euthanized and their skin removed. Researchers made their inner organs transparent, but not their bones. The results look like a rodent-shaped block of gelatin with the organs held in place by connective tissue and a gel used in the procedure.ELL, YANG ET AL / AP

Scientists have been able to make tissues transparent to some degree for a century, and in recent years several new methods have been developed. Last year, for example, a technique that produced see-through mouse brains made headlines. Such treatments reveal far more detail than X-rays or MRI exams could deliver.

The new work is the first to make an entire transparent mouse, experts said.

It should be useful for projects like mapping the details of the nervous system or the spread of cancer within lab animals, said Vivian Gradinaru of the California Institute of Technology, senior author of a paper describing the work. It was released Thursday by the journal Cell.

It might also help doctors analyze biopsy samples from people someday, she said.

Read more at NBC News.

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