Perhaps you should try some spelling variations:
significant genes » significant gender (Expand Search), significant benefits (Expand Search), significant changes (Expand Search)
greatest decrease » treatment decreased (Expand Search), greater increase (Expand Search)
genes decrease » teer decrease (Expand Search), sizes decrease (Expand Search), levels decreased (Expand Search)
nn decrease » _ decrease (Expand Search), a decrease (Expand Search), mean 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: "(( significant genes decrease ) OR ( significantly ((greatest decrease) OR (nn decrease)) ))~".
• Adding a wildcard symbol may retrieve word variants: (( significant genes decrease ) OR ( significantly ((greatest decrease) OR (nn decrease)) ))*.