Perhaps you should try some spelling variations:
decreases primary » diseases primary (Expand search), decreases pulmonary (Expand search), decreases preterm (Expand search)
rats decreases » and decreases (Expand search), but decreases (Expand search), stress decreases (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 rats » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)

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

• Removing quotes may allow a broader search: (( decrease OR decrease treg decrease ) OR ( decrease rats decreases primary object ))~.