Studies on the effect of the apolipoprotein E genotype on the lipid profile in Alzheimer's disease.
OBJECTIVE
To determine whether Apolipoprotein E4 (Apo E4) gene status or ApoE gene dose affect the lipid profile in AD.


BACKGROUND
Links between hypercholesterolemia and AD development continue to grow. Presently, limited information exists about the influence of the Apo E genotype on the lipid profile characteristics in AD.


METHODS
We examined the lipid profiles (total cholesterol (TC), high-density lipoprotein (HDL), lower-density lipoprotein (LDL), TC/HDL ratio, and triglyceride (TG) levels) of 142 subjects with probable or possible AD (mean age 76.5 +/- 8.9 years), not on lipid lowering therapy by Apo E genotype. Assessment was done by gene status and gene dose.


RESULTS
ApoE4 gene status did not reveal any significant differences in the lipid profile except for LDL. However, significant differences were observed by ApoE gene dose.


CONCLUSIONS
ApoE gene status has minimal influence on the lipid panel or mean age in AD. Apo E gene dose does influence the lipid panel with Apo E 2/2, and 2/3 having significantly better lipid panels and older age of onset.
Sabbagh
Marwan N
MN
The Cleo Roberts Center for Clinical Research Sun Health Research Institute, Sun City, AZ 85351, USA. Marwan.Sabbagh@sunhealth.org
Sandhu
Shawn
S
Kolody
Heather
H
Lahti
Tyson
T
Silverberg
Nina B
NB
Sparks
D Larry
DL
D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000097:blood* / Q000235:genetics*; D053327:Apolipoprotein E4; D001057:Apolipoproteins E / Q000097:blood / Q000235:genetics*; D002784:Cholesterol / Q000097:blood / Q000235:genetics; D005838:Genotype; D006801:Humans; D050356:Lipid Metabolism / Q000235:genetics*; D008075:Lipoproteins, HDL / Q000097:blood / Q000235:genetics; D008077:Lipoproteins, LDL / Q000097:blood / Q000235:genetics; D008297:Male; D008875:Middle Aged
D053327:Apolipoprotein E4; D001057:Apolipoproteins E; D008075:Lipoproteins, HDL; D008077:Lipoproteins, LDL; D002784:Cholesterol