+-------COMP:N-N(of)-------+   
             +---------COMP:V-N(In)---------+          |           +-MOD_ATT:N-ADJ+   
       +MOD_A+              +----SUBJ:V-N---+--OBJ:V-N-+           |       +MOD_AT+   
       |     |              |               |          |           |       |      |   
 In __SP__ skin , palmitoylethanolamide increases expression of __SP__ __NODE__ mRNA .
MOD_ATT:N-ADJ (skin,__SP__)
COMP:V-N(In) (increase,skin)
SUBJ:V-N (increase,palmitoylethanolamide)
OBJ:V-N (increase,expression)
COMP:N-N(of) (expression,mRNA)
MOD_ATT:N-ADJ (mRNA,__SP__)
MOD_ATT:N-ADJ (mRNA,__NODE__)