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New Imaging Method Measures Dermal Fat

by Shirley Johanna on August 18, 2016 at 6:49 PM
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New Imaging Method Measures Dermal Fat

A non-invasive MRI-based method that measures the volume of fat has been developed by Caroline Alexander and her colleagues at the University of Wisconsin, Madison. Mammals contain two main varieties of fat: white adipose tissue (WAT), which is used to store energy, and brown adipose tissue (BAT), which is involved in the regulation of body temperature, particularly in infants.

Dermal WAT (dWAT) is the layer of WAT is immediately adjacent to the dermis and is known to accumulate in response to ambient cold, hair growth, and exposure to bacteria in mice, but little is known about this tissue in humans. The new method measures dWAT, total WAT volume, and BAT activation in mice and humans.


Using this method, Alexander and colleagues demonstrated that dWAT, as well as visceral WAT and BAT, increase in genetically obese mice and mice fed a high-fat diet over several weeks.

Alexander and colleagues used their imaging technique on 10 healthy human subjects and determined that dWAT thickness was highly variable between subjects and weighed 8.8 kg on average.

These studies demonstrate that this MRI-based method can be used to study multiple adipose depots, including dWAT, in both mice and humans.

Source: Eurekalert

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