+---COMP:N-N(of)--+   
     +SUBJ:+-OBJ:V-N-+           +MOD_A+   
     |     |         |           |     |   
 IGF 1 increases reduction of weight loss .
SUBJ:V-N (increase,1)
OBJ:V-N (increase,reduction)
COMP:N-N(of) (reduction,loss)
MOD_ATT:N-N (loss,weight)