Correlation between estimated plasma remnant-like particle cholesterol and vegetable fat intake in Uku town, Japan

BACKGROUND@#Remnant-like particle cholesterol (RLP-C) is highly atherogenic, which is associated with atherosclerosis. However, RLP-C has not been routinely measured in the clinical practice. We estimated RLP-C levels using conventional lipid profiles and examined the association between estimated RLP-C and related factors including nutrient intake.@*METHODS@#This study was performed in Uku town, Nagasaki prefecture, Japan in 2019. A total of 225 subjects were enrolled and directly measured RLP-C levels. Estimated RLP-C levels were defined as the following formula [total cholesterol - (LDL-cholesterol) - (HDL-cholesterol)]. Multivariate analyses were used to assess the relationship between estimated RLP-C and atherogenic factors. We calculated cut-off values on dichotomized RLP-C (< 7.5 mg/dL vs. ≥ 7.5 mg/dL) by receiver operating characteristic (ROC) curve.@*RESULTS@#The mean values of directly measured RLP-C levels and estimated RLP-C were 4.0 mg/dL and 16.4 mg/dL, respectively. In the multiple stepwise linear regression analysis, directly measured and estimated RLP-C levels were independently and commonly associated with apolipoprotein E, triglycerides, and vegetable fat intake (inversely). Using ROC curves, we found the cut-off value of estimated RLP-C was 22.0 mg/dL.@*CONCLUSION@#We demonstrated that the estimated RLP-C levels using conventional lipid profiles may substitute for directly measured RLP-C and these levels were independently and inversely associated with vegetable fat intake in the community-dwelling Japanese population.

Serum remnant-like particle cholesterol concentration and its clinical significance in the patients with type 2 diabetes mellitus / 中华内分泌代谢杂志

Objective To investigate the change of serum remnant like particle cholesterol (RLP C) and the association of RLP C with diabetic nephropathy (DN) in the patients with type 2 diabetes mellitus (DM). Methods Serum RLP C concentration was assayed by immunoseparation method. Plasma ? granule membrane glycoprotein 140 (GMP140) and nitric oxide (NO) levels were also measured. Urinary albumin excretion rate (UAER) was measured by radioimmunoassay, and the patients with type 2 DM were assigned to three groups according to UAER 〔35 without DN (D 1 group, UAER200 ?g/min)〕. Results Serum RLP C concentration in 96 patients with type 2 DM was significantly increased compared to that in 44 normal controls (NC) 〔(0.281?0.162)mmol/L vs (0.193?0.125)mmol/L, P