Determination of human serum semicarbazide-sensitive amine oxidase activity: a possible clinical marker of atherosclerosis

1999 ◽  
Vol 24 (4) ◽  
pp. 299-302 ◽  
Author(s):  
Z. Mészáros ◽  
I. Karádi ◽  
A. Csányi ◽  
T. Szombathy ◽  
L. Romics ◽  
...  
RSC Advances ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 6717-6723
Author(s):  
Xiuli Dong ◽  
Jiayuan Tang ◽  
Yan Ren ◽  
Xiangming Chen

A highly sensitive HPLC-FL method to determine semicarbazide-sensitive amine oxidase activity was developed utilizing AHAD as the novel fluorescence labeling reagent.


2012 ◽  
Vol 45 (18) ◽  
pp. 2774-2784 ◽  
Author(s):  
Xuan Tan ◽  
Wei-Qing Rang ◽  
Yong-Sheng Wang ◽  
Hui-Xian Yang ◽  
Jin-Hua Xue ◽  
...  

2007 ◽  
Vol 56 (S1) ◽  
pp. S53-S54 ◽  
Author(s):  
H. G. Schwelberger ◽  
J. Feurle

Author(s):  
W. Allen Shannon ◽  
Hannah L. Wasserkrug ◽  
andArnold M. Seligman

The synthesis of a new substrate, p-N,N-dimethylamino-β-phenethylamine (DAPA)3 (Fig. 1) (1,2), and the testing of it as a possible substrate for tissue amine oxidase activity have resulted in the ultracytochemical localization of enzyme oxidase activity referred to as DAPA oxidase (DAPAO). DAPA was designed with the goal of providing an amine that would yield on oxidation a stronger reducing aldehyde than does tryptamine in the histochemical demonstration of monoamine oxidase (MAO) with tetrazolium salts.Ultracytochemical preparations of guinea pig heart, liver and kidney and rat heart and liver were studied. Guinea pig kidney, known to exhibit high levels of MAO, appeared the most reactive of the tissues studied. DAPAO reaction product appears primarily in mitochondrial outer compartments and cristae (Figs. 2-4). Reaction product is also localized in endoplasmic reticulum, cytoplasmic vacuoles and nuclear envelopes (Figs. 2 and 3) and in the sarcoplasmic reticulum of heart.


2003 ◽  
Vol 31 (2) ◽  
pp. 371-374 ◽  
Author(s):  
K. Sakata ◽  
K. Kashiwagi ◽  
S. Sharmin ◽  
S. Ueda ◽  
K. Igarashi

It is well known that the addition of spermine or spermidine to culture medium containing ruminant serum inhibits cellular proliferation. This effect is caused by the products of oxidation of polyamines that are generated by serum amine oxidase. Among the products, we found that acrolein is a major toxic compound produced from spermine and spermidine by amine oxidase. We then analysed the level of polyamines (putrescine, spermidine and spermine) and amine oxidase activity in plasma of patients with chronic renal failure. It was found that the levels of putrescine and the amine oxidase activity were increased, whereas spermidine and spermine were decreased in plasma of patients with chronic renal failure. The levels of free and protein-conjugated acrolein were also increased in plasma of patients with chronic renal failure. An increase in putrescine, amine oxidase and acrolein in plasma was observed in all cases such as diabetic nephropathy, chronic glomerulonephritis and nephrosclerosis. These results suggest that acrolein is produced during the early stage of nephritis through kidney damage and also during uraemia through accumulation of polyamines in blood due to the decrease in their excretion into urine.


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