Perhaps you should try some spelling variations:
decrease lipid » increases lipid (Expand search), increased lipid (Expand search)
lipid decrease » rapid decrease (Expand search), ligand decrease (Expand search), limb decrease (Expand search)
decrease with » decreases with (Expand search), increase with (Expand search), decrease in (Expand search)
with increase » with increased (Expand search), with decrease (Expand search), with increasing (Expand search)
increase null » increase cell (Expand search), increase due (Expand search), increase n (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (Expand search)
null object » null subject (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 lipid decrease to decrease ) OR ( decrease with increase null object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease lipid decrease to decrease ) OR ( decrease with increase null object ))*.