Effect of aging on plasma 1,5-anhydroglucitol levels in humans and rats.
Since normal reference values change with age in some clinical parameters, we measured the plasma levels of 1,5-anhydroglucitol (AG), a new marker of glycemic control in diabetes mellitus, in healthy subjects and in rats. Our results showed a significantly negative correlation of the marker with age in humans and that the plasma AG levels of older rats were markedly lower than those of younger counterparts. This remarkable reduction of AG in the older rat group can be partially explained by our finding that aged animals excreted AG more rapidly in the urine than younger ones, besides a decrease in food intake. We therefore suggest that normal clinical reference values for plasma AG levels should be modified according to age.
Department of Internal Medicine, Wakayama Medical College Kihoku Hospital, Japan.
M
M
Funasako
M
M
Taniji
K
K
Fujimoto
M
M
Ohata
Y
Y
Higashimoto
K
K
Uetani
T
T
Suruda
S
S
Nakai
H
H
Fujimoto
Y
Y
Sakagami
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000097:blood*; D000818:Animals; D015415:Biomarkers / Q000097:blood; D001786:Blood Glucose / Q000032:analysis; D003847:Deoxyglucose / Q000097:blood*; D003920:Diabetes Mellitus / Q000097:blood; D004435:Eating; D005260:Female; D006801:Humans; D007536:Isomerism; D008297:Male; D008875:Middle Aged; D051381:Rats; D017208:Rats, Wistar; D012016:Reference Values; D012044:Regression Analysis; D012727:Sex Characteristics
D015415:Biomarkers; D001786:Blood Glucose; C006584:1,5-anhydroglucitol; D003847:Deoxyglucose