Two Americans were awarded the NobelPrize for Medicine for shedding light on how diseases like cholera and diabetesspread through the body. Alfred G. Gilman and Martin Rodbell will each take halfof the $930,000 prize for determining how proteins can help modulate signals --which act something like biochemical traffic lights -- in cells. Theirresearch, conducted from the mid-60s to the mid-80s, hasn't resulted in curesyet, but it lays the foundations for treatment. BTW: Rodbell's research may havepleased the Nobel prize committee, but not Congress. He had to retire this Mayfrom the National Institutes of Health because his department ran out of money.Gilman is at the University of Texas.