Perhaps you should try some spelling variations:
increased signal » increased spinal (Expand search), increased airway (Expand search), increased atrial (Expand search)
lipid increased » elicit increased (Expand search), limits increased (Expand search), rapid increase (Expand search)
decrease lipid » increases lipid (Expand search), increased lipid (Expand search)
decrease costs » decreasing costs (Expand search), decreases post (Expand search), disease costs (Expand search)
costs decrease » loss decrease (Expand search), not decrease (Expand search), cells decrease (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to 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 lipid increased signal processing ) OR ( decrease costs decrease of decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease lipid increased signal processing ) OR ( decrease costs decrease of decrease ))*.