According to an AP report, the chemical keeps the drug combination intact until it binds to a cancer cell and delivers its anti-tumor cocktail.

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The same chemical is available in a combination pill with Merck's Zocor under the name Vytorin.

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So it was with a sense of caution that I approached some Swiss research in the latest edition of the journal Science in which paralysed rats were able to walk again after a combination of electrical-chemical stimulation and rehabilitation training.

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Someday science may reveal the whole hormonal spectrum, and we'll finally fathom which bonding decisions are choice, which (chemical) chance, and which an irreplaceably human combination of the two.

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