Effects on lipids and lipoproteins in women treated with oestradiol and progesterone.

Thirty women with climacteric symptoms were treated for 4 months with 2 mg 17 beta-oestradiol and different doses of progesterone (50, 100 or 200 mg). The concentrations of total and free cholesterol, phospholipids, triglycerides (TG), apoprotein A1 and apoprotein B were determined in high-density lipoprotein (HDL), low-density lipoprotein (LDL) and very-low-density lipoprotein (VLDL) fractions and in serum. HDL levels increased and LDL levels decreased, while TG levels in VLDL remained unchanged, which indicates that the lipoprotein pattern is oestrogen-induced and that progesterone exerts little or no influence.