Obese mouse, 1998.

Image number: 10322335

Obese mouse, 1998.

Taxidermal model of an obese mouse. At the end of a meal, fat cells send a chemical message to the brain giving out the signal that you are full and discouraging you from eating any more. Professor Paul Trayhurn of the Rowett Research Institute in Aberdeen, Scotland, experimented on this mouse by 'knocking-out' the gene responsible for sending this signal. Consequently, the mouse did not know when to stop eating and became obese.

Image number:
10322335
Credit:
Science Museum/Science & Society Picture Library
Date taken:
20 October 2003 16:28
Image rights:
Science Museum
 

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