Perhaps you should try some spelling variations:
ligand decrease » and decrease (Expand search), ligand release (Expand search), ligands increased (Expand search)
decrease ligand » decrease and (Expand search), decrease lipid (Expand search), decrease lodging (Expand search)
rats decreases » and decreases (Expand search), but decreases (Expand search), stress decreases (Expand search)
decrease rats » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
decrease new » decrease need (Expand search), decrease low (Expand search), decreased need (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (Expand search)
new objects » new subjects (Expand search), new objective (Expand search), belt objects (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 rats decreases in decrease ) OR ( decrease ligand decrease new objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease rats decreases in decrease ) OR ( decrease ligand decrease new objects ))*.