Perhaps you should try some spelling variations:
decreased memory » decreased tumor (Expand search), decreased semen (Expand search), decreased fear (Expand search)
memory decrease » memory decreases (Expand search), memory increased (Expand search), memory disease (Expand search)
decrease among » decreases along (Expand search), decreasing among (Expand search), disease among (Expand search)
and decreased » and decreases (Expand search), and increased (Expand search)
among objects » among subjects (Expand search), moving objects (Expand search), young objects (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
decrease akt » decrease at (Expand search), decrease after (Expand search), decrease with (Expand search)
akt decrease » and decrease (Expand search), not decrease (Expand search), any decrease (Expand search)

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease AND decreased memory decrease ) OR ( decrease akt decrease among objects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease and decreased memory decrease ) OR ( decrease akt decrease among objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease and decreased memory decrease ) OR ( decrease akt decrease among objects ))*.