Perhaps you should try some spelling variations:
activation patterns » activity patterns (Expand search), interaction patterns (Expand search), methylation patterns (Expand search)
decrease activation » increase activation (Expand search), increased activation (Expand search), urease activation (Expand search)
decreases sperm » decreased sperm (Expand search), decreases serum (Expand search), decreasing sperm (Expand search)
sperm decrease » term decrease (Expand search), speed decrease (Expand search), speed decreases (Expand search)
decrease akt » decrease at (Expand search), decrease and (Expand search), decrease after (Expand search)
akt decrease » and decrease (Expand search), not decrease (Expand search), any decrease (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (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 in decrease akt decrease ) OR ( decreases sperm decrease activation patterns ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in decrease akt decrease ) OR ( decreases sperm decrease activation patterns ))*.