TY - JOUR
T1 - Increased small dense LDL and intermediate-density lipoprotein with albuminuria in type 1 diabetes
AU - Sibley, Shalamar D.
AU - Hokanson, John E.
AU - Steffes, Michael W.
AU - Purnell, Jonathan Q.
AU - Marcovina, Santica M.
AU - Cleary, Patricia A.
AU - Brunzell, John D.
PY - 1999/7
Y1 - 1999/7
N2 - OBJECTIVE - This population study examines the relationship between LDL density and persistent albuminuria in subjects with type 1 diabetes at the end of the Diabetes Control and Complications Trial (DCCT). RESEARCH DESIGN AND METHODS - Subjects were classified as persistently normoalbuminuric (albumin excretion rate [AER] <30 mg/d, n = 1,056), microalbuminuric (AER ≥30-299 mg/day, n = 80), and macroalbuminuric (AER = 300 mg/day, n = 24) based on the last two AER measures. RESULTS - Triglyceride (P <0.01) and LDL cholesterol (P <0.01) levels were higher in macroalbuminuric subjects compared with normoalbuminuric subjects. Cholesterol distribution by density- gradient ultracentrifugation showed an increase in intermediate-density lipoprotein (IDL) and a shift in peak LDL from buoyant toward more dense particles with progressive albuminuria. In the entire group, there was a significant negative correlation between the peak buoyancy o f LDL particles and albuminuria (r = -0.238, P <0.001, n = 1,160). This correlation persisted in the normoalbuminuric DCCT group (r = -0.138, P <0.001, n = 1,056). CONCLUSIONS - As albuminuria increases in subjects with type 1 diabetes, dyslipidemia occurs with an increase in IDL and dense LDL that may lead to increased cardiovascular disease.
AB - OBJECTIVE - This population study examines the relationship between LDL density and persistent albuminuria in subjects with type 1 diabetes at the end of the Diabetes Control and Complications Trial (DCCT). RESEARCH DESIGN AND METHODS - Subjects were classified as persistently normoalbuminuric (albumin excretion rate [AER] <30 mg/d, n = 1,056), microalbuminuric (AER ≥30-299 mg/day, n = 80), and macroalbuminuric (AER = 300 mg/day, n = 24) based on the last two AER measures. RESULTS - Triglyceride (P <0.01) and LDL cholesterol (P <0.01) levels were higher in macroalbuminuric subjects compared with normoalbuminuric subjects. Cholesterol distribution by density- gradient ultracentrifugation showed an increase in intermediate-density lipoprotein (IDL) and a shift in peak LDL from buoyant toward more dense particles with progressive albuminuria. In the entire group, there was a significant negative correlation between the peak buoyancy o f LDL particles and albuminuria (r = -0.238, P <0.001, n = 1,160). This correlation persisted in the normoalbuminuric DCCT group (r = -0.138, P <0.001, n = 1,056). CONCLUSIONS - As albuminuria increases in subjects with type 1 diabetes, dyslipidemia occurs with an increase in IDL and dense LDL that may lead to increased cardiovascular disease.
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U2 - 10.2337/diacare.22.7.1165
DO - 10.2337/diacare.22.7.1165
M3 - Article
C2 - 10388983
AN - SCOPUS:0033051811
SN - 0149-5992
VL - 22
SP - 1165
EP - 1170
JO - Diabetes care
JF - Diabetes care
IS - 7
ER -