Loss of a gene has been linked to an increased risk of heart disease

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For years, scientists have been researching why humans are at increased risk for heart disease. In the end, it turns out, this is because a gene that existed in the human race two and a half million years ago no longer exists in humans today.

The researchers monitored the mutation in life-sustaining genes (CMAH) by implanting them in mutated mice.

(CMAH is a gene that produces a sugar molecule called glycolinuramine acid that causes chronic inflammation in modern humans.)