By DAN VOELPEL, Tacoma News Tribune

Biomedical discovery hailed as weight loss secret

Black mouse 2330tgm gorged himself on a high-fat, "Supersize Me" diet of mouse chow for 20 straight weeks.
He liked it so much that mouse chow dust coated his whiskers and fur.
But 2330tgm had a man-made twist in his genes that kept him lean.
Or at least leaner than his brothers, who -- with normal, unaltered mouse genes -- ate the same diet.
The twist?

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