The decrease in the amount of dopamine can result in one or more of the general signs of Parkinson's.

VOA: special.2009.02.03

The decrease in the amount of dopamine can result in one or more general signs of Parkinson's disease.

VOA: special.2009.04.07

It aims to decrease the amount of added sugar from many products that children eat.

VOA: special.2010.06.07

Regulators say holding back a small amount of customer cash would decrease the amount of capital that firms would have to hold in reserve and compare the idea to a minimum account balance required by banks.

WSJ: U.S. Sets Money-Market Plan

But dimebon didn't decrease the amount of amyloid produced by mouse brain cells in a dish.

FORBES: Magazine Article

Carbon dioxide emissions decrease the amount of available oxygen in water in two ways.

FORBES: Carbon Emissions Threaten The Fishing Industry By Shrinking Fish Sizes