Monday, June 7, 2010

Reasons to Be Cheerful - Greg Egan

"The pressure in my skull explained most of my symptoms, but tests on my cerebrospinal fluid had also revealed a greatly elevated level of a substance called Leu-enkephalin--an endorphin, a neuropeptide which bound to some of the same receptors as opiates like morphine and heroin. Somewhere along the road to malignancy, the same mutant transcription factor that had switched on the genes enabling the tumor cells to divide unchecked had apparently also switched on the genes needed to produce Leu-enkephalin."

4 out of 5

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