lipoprotein fractions purified from fresh canine plasma -- very low density lipoprotein ( vldl ) , low density lipoprotein ( ldl ) and high density lipoprotein ( hdl ) -- produce relaxation of isolated ring segments of coronary arteries of canine ( porcine and human ) and rabbit aorta precontracted with high potassium , 30 mm , or phenylephrine , 10 ( -6 ) m , respectively .
C0023820
lipoprotein
C0023825
very low density