TY - JOUR
T1 - First evidence for accumulation of protein-bound and protein-free pyrraline in human uremic plasma by mass spectrometry
AU - Odani, Hiroko
AU - Shinzato, Toru
AU - Matsumoto, Yoshihiro
AU - Takai, Ichiro
AU - Nakai, Shigeru
AU - Miwa, Masamiki
AU - Iwayama, Norihisa
AU - Amano, Izumi
AU - Maeda, Kenji
PY - 1996/7/5
Y1 - 1996/7/5
N2 - Glucose-derived advanced glycation end products (AGEs) cross-link proteins and cause various biological tissue damage. One of them, pyrraline [ε-2-(formyl-5-hydroxymethyl-pyrrol-1-yl) has been demonstrated by utilizing antibody to accumulate in plasma and sclerosed matrix of diabetic individuals, suggesting responsibility for diabetic complications. To elucidate the involvement of pyrraline in uremia, we examined the pyrraline levels in patients with chronic renal failure by a mass spectrometric approach. Here we show that protein-free pyrraline as well as pyrraline with binding protein are significantly increased in non-diabetic uremic plasma compared to healthy subjects. Our results suggest that circulating pyrraline could be a substance contributing to complications in uremia.
AB - Glucose-derived advanced glycation end products (AGEs) cross-link proteins and cause various biological tissue damage. One of them, pyrraline [ε-2-(formyl-5-hydroxymethyl-pyrrol-1-yl) has been demonstrated by utilizing antibody to accumulate in plasma and sclerosed matrix of diabetic individuals, suggesting responsibility for diabetic complications. To elucidate the involvement of pyrraline in uremia, we examined the pyrraline levels in patients with chronic renal failure by a mass spectrometric approach. Here we show that protein-free pyrraline as well as pyrraline with binding protein are significantly increased in non-diabetic uremic plasma compared to healthy subjects. Our results suggest that circulating pyrraline could be a substance contributing to complications in uremia.
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U2 - 10.1006/bbrc.1996.1013
DO - 10.1006/bbrc.1996.1013
M3 - Article
C2 - 8694819
AN - SCOPUS:0030570504
SN - 0006-291X
VL - 224
SP - 237
EP - 241
JO - Biochemical and Biophysical Research Communications
JF - Biochemical and Biophysical Research Communications
IS - 1
ER -