Perhaps you should try some spelling variations:
decreased base » decreased bone (Expand search), decreased brain (Expand search), decreased risk (Expand search)
decrease treg » decrease the (Expand search), increase treg (Expand search), decrease their (Expand search)
treg decrease » the decrease (Expand search), urea decrease (Expand search), drugs decrease (Expand search)
decrease not » decrease of (Expand search), decrease akt (Expand search), decrease at (Expand search)
not decrease » to decrease (Expand search), not increase (Expand search), and decrease (Expand search)
to decreased » to decrease (Expand search), to increased (Expand search), is decreased (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (Expand search)
base object » based object (Expand search), bare object (Expand search), same object (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 treg decrease NOT decrease ) OR ( decrease to decreased base object ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease treg decrease not decrease ) OR ( decrease to decreased base object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease treg decrease not decrease ) OR ( decrease to decreased base object ))*.