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Dong X, Tang J, Ren Y, Chen X. Development of a HPLC-FL method to determine benzaldehyde after derivatization with N-acetylhydrazine acridone and its application for determination of semicarbazide-sensitive amine oxidase activity in human serum. RSC Adv 2019; 9:6717-6723. [PMID: 35518507 PMCID: PMC9061080 DOI: 10.1039/c8ra10004g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 02/15/2019] [Indexed: 12/11/2022] Open
Abstract
A novel fluorescence labeling reagent N-acetylhydrazine acridone (AHAD) was designed and synthesized. A highly sensitive high performance liquid chromatography (HPLC) method coupled with fluorescence detection to determine benzaldehyde after derivatization with AHAD was developed. Optimum derivatization was obtained at 40 °C for 30 min with trichloroacetic acid as catalyst. Benzaldehyde derivative was separated on a reversed-phase SB-C18 column in conjunction with a gradient elution and detected by fluorescence detection at excitation and emission wavelengths of 371 nm and 421 nm. The established method exhibited excellent linearity over the injected amount of benzaldehyde of 0.003 to 5 nmol mL−1. The method was successfully applied to the determination of serum semicarbazide-sensitive amine oxidase (SSAO) activity in humans. SSAO is a significant biomarker because serum SSAO activity is elevated in patients with Alzheimer's disease, vascular disorders, heart disease and diabetes mellitus. It was demonstrated that the SSAO activity of the hyperglycemic group (60 ± 4 nmol mL−1 h−1) was significantly higher than that of normal blood sugar group (44 ± 4 nmol mL−1 h−1) with P < 0.05. A highly sensitive HPLC-FL method to determine semicarbazide-sensitive amine oxidase activity was developed utilizing AHAD as the novel fluorescence labeling reagent.![]()
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Affiliation(s)
- Xiuli Dong
- School of Pharmacy, Binzhou Medical University Yantai 264003 P. R. China +86-535-6913406
| | - Jiayuan Tang
- School of Pharmacy, Binzhou Medical University Yantai 264003 P. R. China +86-535-6913406
| | - Yan Ren
- School of Pharmacy, Binzhou Medical University Yantai 264003 P. R. China +86-535-6913406
| | - Xiangming Chen
- School of Pharmacy, Binzhou Medical University Yantai 264003 P. R. China +86-535-6913406
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Determination of human serum semicarbazide-sensitive amine oxidase activity via flow injection analysis with fluorescence detection after online derivatization of the enzymatically produced benzaldehyde with 1,2-diaminoanthraquinone. Anal Chim Acta 2015; 881:139-47. [DOI: 10.1016/j.aca.2015.04.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 03/30/2015] [Accepted: 04/02/2015] [Indexed: 01/10/2023]
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Song DW, Xin N, Xie BJ, Li YJ, Meng LY, Li HM, Schläppi M, Deng YL. Formation of a salsolinol-like compound, the neurotoxin, 1-acetyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline, in a cellular model of hyperglycemia and a rat model of diabetes. Int J Mol Med 2013; 33:736-42. [PMID: 24366308 DOI: 10.3892/ijmm.2013.1604] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Accepted: 12/16/2013] [Indexed: 11/06/2022] Open
Abstract
There are statistical data indicating that diabetes is a risk factor for Parkinson's disease (PD). Methylglyoxal (MG), a biologically reactive byproduct of glucose metabolism, the levels of which have been shown to be increase in diabetes, reacts with dopamine to form 1-acetyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline (ADTIQ); this formation may provide further insight into the connection between PD and diabetes. In this study, we investigated the role of ADTIQ in these two diseases to determine in an aim to enhance our understanding of the link between PD and diabetes. To this end, a cell model of hyperglycemia and a rat model of diabetes were established. In the cell model of hyperglycemia, compared with the control group, the elevated glucose levels promoted free hydroxyl radical formation (p<0.01). An ADTIQ assay was successfully developed and ADTIQ levels were detected and quantified. The levels of its precursors, MG and dopamine (DA), were determined in both the cell model of hyperglycemia and the rat model of diabetes. The proteins related to glucose metabolism were also assayed. Compared with the control group, ADTIQ and MG levels were significantly elevated not only in the cell model of hyperglycemia, but also in the brains of rats with diabetes (p<0.01). Seven key enzymes from the glycolytic pathway were found to be significantly more abundant in the brains of rats with diabetes. Moreover, it was found that adenosine triphosphate (ATP) synthase and superoxide dismutase (SOD) expression levels were markedly decreased in the rats with diabetes compared with the control group. Therefore, ADTIQ expression levels were found to be elevated under hyperglycemic conditions. The results reported herein demonstrate that ADTIQ, which is derived from MG, the levels of which are increased in diabetes, may serve as a neurotoxin to dopaminergic neurons, eventually leading to PD.
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Affiliation(s)
- De-Wei Song
- Division of Chemical Metrology and Analytical Science, National Institute of Metrology, Beijing 100013, P.R. China
| | - Nian Xin
- School of Life Science, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Bing-Jie Xie
- School of Life Science, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Yu-Juan Li
- School of Life Science, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Ling-Yan Meng
- School of Life Science, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Hong-Mei Li
- Division of Chemical Metrology and Analytical Science, National Institute of Metrology, Beijing 100013, P.R. China
| | | | - Yu-Lin Deng
- School of Life Science, Beijing Institute of Technology, Beijing 100081, P.R. China
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Tan X, Rang WQ, Wang YS, Yang HX, Xue JH, Shi LF, Yang HM, Liu L, Zhou B. Determination of Semicarbazide-Sensitive Amine Oxidase Activity in Blood Plasma by a Light Scattering Technique. ANAL LETT 2012. [DOI: 10.1080/00032719.2012.703738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Che B, Wang L, Zhang Z, Zhang Y, Deng Y. Distribution and accumulation of caffeine in rat tissues and its inhibition on semicarbazide-sensitive amine oxidase. Neurotoxicology 2012; 33:1248-53. [PMID: 22841599 DOI: 10.1016/j.neuro.2012.07.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 07/05/2012] [Accepted: 07/18/2012] [Indexed: 11/28/2022]
Abstract
Wistar rats were treated with caffeine or 2-bromoethylamine, the effect of caffeine on the activity of semicarbazide-sensitive amine oxidase (SSAO) in rat serum and tissues was studied using various LC-MS methods. Caffeine was found to present in all tissues after administration for 10 days and accumulated for 25 days. The level of caffeine was high in brain and liver, and the SSAO activity in all tissues was found to be inhibited by caffeine. As the concentration of caffeine increased, the SSAO activity decreased. The inhibition ratio was correlated to the levels of caffeine present. We presume that caffeine may treat with SSAO activity associated diseases.
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Affiliation(s)
- Baoquan Che
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
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Zhang Y, Lai C, Su R, Zhang M, Xiong Y, Qing H, Deng Y. Quantification of Cry1Ab in genetically modified maize leaves by liquid chromatography multiple reaction monitoring tandem mass spectrometry using 18O stable isotope dilution. Analyst 2012; 137:2699-705. [PMID: 22543512 DOI: 10.1039/c2an35383k] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cry1Ab is one of the most common Bacillus thuringiensis (Bt) proteins in genetically modified crops, which exhibits strong resistance against insect pests. In the present study, a sensitive and precise liquid chromatography stable isotope dilution multiple reaction monitoring tandem mass spectrometry (LC-SID-MRM-MS) assay was developed and validated to quantify the amount of Cry1Ab expression in transgenic maize leaves. The measurement of protein was converted to measurement of unique peptides to Cry1Ab protein. Two peptides unique to Cry1Ab were synthesized and labeled in H(2)(18)O to generate (18)O stable isotope peptides as internal standards. The validated method obtained superior specificity and good linearity. And the inter- and intra-day precision and accuracy for all samples were satisfactory. The results demonstrated Cry1Ab protein was 31.7 ± 4.1 μg g(-1) dry weight in Bt-176 transgenic maize leaves. It proved that the novel LC-SID-MRM-MS method was sensitive and selective to quantify Cry1Ab in the crude extract without time-consuming pre-separation or purification procedures.
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Affiliation(s)
- Yongqian Zhang
- School of Life Science, Beijing Institute of Technology, Haidian District, PR China
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Simulated microgravity affects semicarbazide-sensitive amine oxidase expression in recombinant Escherichia coli by HPLC-ESI-QQQ analysis. Appl Microbiol Biotechnol 2011; 94:809-16. [DOI: 10.1007/s00253-011-3652-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2011] [Revised: 09/28/2011] [Accepted: 10/17/2011] [Indexed: 11/25/2022]
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