Diabetes Care, Vol 16, Issue 5 755-758, Copyright © 1993 by American Diabetes Association
Lipoprotein(a) concentration shows little relationship to IDDM complications in the Pittsburgh Epidemiology of Diabetes Complications Study cohort
RE Maser, D Usher, DJ Becker, AL Drash, LH Kuller and TJ Orchard
School of Life and Health Sciences, University of Delaware, Newark 19716.
OBJECTIVE--To examine the potential associations of lipoprotein(a) and the
complications of IDDM and their risk factors. RESEARCH DESIGN AND
METHODS--This report focuses on 186 individuals with IDDM (mean age = 34
yr) participating in a 10-yr prospective study examining various
complications. Lp(a) concentrations were evaluated for those with and
without complications. RESULTS--A weak correlation was seen between Lp(a)
and HbA1 (r = 0.16, P < 0.05). Lp(a) concentrations were not
significantly different for those with or without proliferative
retinopathy, overt nephropathy, peripheral vascular disease, or definite
myocardial infarction or angina. However, an inverse association (P <
0.05) was seen with distal symmetric polyneuropathy. These results were
also confirmed by categorical analyses (i.e., Lp(a) levels < or = 30 vs.
> 30 mg/dl). CONCLUSIONS--These results suggest that any association of
Lp(a) concentration with IDDM complications is likely to be weak or
nonexistent. However, prospective studies are needed before its full role
can be determined.