Sumito Kariya

The Characteristics of Human Plasma Lipoprotein Metabolism: Influence of Low Caloric Diet on Hyperlipidemia

We have classified hyperlipidemia into three groups according to different levels of VLDL-TG, and postulated the effect of low calorie-diets on plasma TCh are as follows: 1) Low calorie-diets are effective on VLDL-TG in every type of hyperlipidemia, except hyperlipidemia with VLDL-TG under 180 mg/100ml; 2) There was a reciprocal relation between the decreased amount of plasma TCh and the change VLDL-TG induced by the diet; 3) Catabolism of VLDL was accelerated by an increased esterification of VLDL-FC; 4) In the the group with VLDL-TG less than or equal to 180 mg/100ml, the LDC showed a high level of TCh: protein ration, and in the group with VLDL-TG greater than or equal to 260 mg/100ml, there was to be low level of TG: protein ratio in VLDL: 5) In hyperlipidemia with plasma TCh unchanged by the diet LDL-TCh increased significantly without any increase in LDL protein and LDL-TG.