Provided are methods of treating subjects having, or at risk of having, heart disease, cardiovascular disease, coronary artery disease, cerebrovascular disease, acute or chronic renal disease, and/or symptoms thereof with certain therapeutically effective doses and dosing regimens comprising an isolated and purified lecithin-cholesterol acyltransferase (LCAT) enzyme, in particular, a recombinant human LCAT (rhLCAT) enzyme, e.g., MEDI6012. The methods involving administration of the described doses of rhLCAT increase serum levels of high density lipoprotein (HDL) and apolipoprotein A1 (apoA1) and decrease, or do not appreciably increase, serum levels of apolipoprotein B in the treated subjects, thus affording treatment of heart disease, heart-related diseases and coronary artery disease. The methods involving the described dosing regimens and doses of rhLCAT or MEDI6012 administered to a subject further provide cardio-, myocardio- and cardiovascular protection for the subject, including protection against ischemic stroke, myocardiocyte apoptosis, atherosclerosis progression and the like.
