alexa Higher levels of HDL cholesterol are associated with a decreased likelihood of albuminuria in patients with long-standing type 1 diabetes.


Clinical & Medical Biochemistry

Author(s): Molitch ME, Rupp D, Carnethon M, Molitch ME, Rupp D, Carnethon M

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Abstract OBJECTIVE: The objective of this study was to determine whether high levels of HDL cholesterol are associated with a lower prevalence of albuminuria RESEARCH DESIGN AND METHODS: We analyzed the lipid profiles of patients with type 1 diabetes of > or = 20 years duration in 42 patients with albuminuria (28 microalbuminuria and 14 macroalbuminuria) and 65 patients without increased albumin excretion before any interventions with either statins or ACE inhibitors. RESULTS: Several characteristics were similar in the two groups: sex, age, duration of diabetes, total cholesterol, LDL cholesterol, and triglycerides. By univariate analysis, significant differences (P < 0.01) were found in HDL cholesterol (albuminuria 1.42 mg/dl, no albuminuria 1.71 mg/dl, P < 0.01), HbA1c (A1C) (albuminuria 8.5\%, no albuminuria 7.5\%), and proportions with no, background, and proliferative retinopathy (albuminuria 2.4, 16.7, and 81\%; no albuminuria 24.6, 52.3, and 23.1\%, respectively). When adjusted for age and sex, a 0.26-mmol/l (10-mg/dl) increase in HDL cholesterol is associated with an odds ratio (OR) of 0.70 (95\% CI 0.54-0.90) for having albuminuria. In a multivariate model that adjusted for age, sex, diabetes duration, and A1C, for every 0.54-mmol/l (21-mg/dl) increase in HDL cholesterol, patients are approximately half (OR 0.51 [95\% CI 0.30-0.86]) as likely to have albuminuria, even after controlling for A1C. CONCLUSIONS: Higher HDL cholesterol levels may be protective against the development of albuminuria in patients with type 1 diabetes. Whether this is due to the HDL cholesterol levels or whether they serve as a marker for some other mechanism remains to be determined.
This article was published in Diabetes Care and referenced in Clinical & Medical Biochemistry

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