( AMPK ( also ( ( plays ( ( an ( important role ) ) ( in ( ( lipid metabolism ) ( in ( the liver ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (NNP AMPK)) (ADVP (RB also)) (VP (VBZ plays) (NP (NP (DT an) (JJ important) (NN role)) (PP (IN in) (NP (NP (NN lipid) (NN metabolism)) (PP (IN in) (NP (DT the) (NN liver))))))) (. .)))
AMPK also plays an important role in lipid metabolism in the liver.
(ROOT (S (NP (NNS Lipids)) (VP (VBP play) (NP (NP (JJ several) (JJ important) (NNS roles)) (PP (IN in) (NP (DT the) (JJ human) (NN body))))) (. .)))