Snake blood boosts mouse heart

Scientists find that a mouse’s heart swells in the presence of python blood

By Stephen Ornes, 16:16 PM November 16, 2011

Maybe you think you know what happens when a mouse meets a python, but scientists recently presented a surprising twist on the typical snake-meets-mouse tale.

They found that three substances in the blood of a Burmese python cause a mouse’s heart to grow larger (though probably not fonder). When lab mice received injections of these substances, called fatty acids, their hearts grew heavier by 10 percent in a week. The larger hearts looked healthy, as though the mice had been exercising more...

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