However , patients in the omega-3 group had lower levels of aspartate aminotransferase ( 28 [ 25-36 ] U/L vs 39 [ 27-55 ] U/L ; P = .04 ) and gamma-glutamyl transpeptidase ( 26 [ 17.5-36 .5 ] U/L vs 35 [ 22-52 ] U/L ; P = .04 ) , and significantly higher levels of adiponectin .