Perhaps you should try some spelling variations:
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
decrease treg » decrease the (Expand search), decrease their (Expand search)
treg decrease » the decrease (Expand search), urea decrease (Expand search), drugs decrease (Expand search)
decrease hood » decrease food (Expand search), decreases food (Expand search), decrease blood (Expand search)
hood effect » hook effect (Expand search), wood effect (Expand search), food effect (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease NOT decrease treg decrease ) OR ( decrease during decrease hood effect ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease NOT decrease treg decrease ) OR ( decrease during decrease hood effect ))*.