+------OBJ:V-N------+                  
            +SUBJ:V+        +MOD_ATT:N-+COMP:N-N(of)+     
            |      |        |          |            |     
 Exogenous IGF peptides increases expression of __NODE__ .
SUBJ:V-N (peptide,IGF)
OBJ:V-N (peptide,expression)
MOD_ATT:N-N (expression,increase)
COMP:N-N(of) (expression,__NODE__)