Method for monitoring of the protein amino group changes during carbonylation

Carbonylation of the protein amino, guanidino and thiol groups is one of the important causes of vascular complications in diabetes. We developed a simple spectrophotometric method for monitoring of the changes in the protein amino group contents during carbonylation. The method is based on the reac...

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Veröffentlicht in:Clinical biochemistry 2011-08, Vol.44 (12), p.994-999
Hauptverfasser: ACIMOVIC, Jelena M, JOVANOVIC, Vesna B, VESELINOVIC, Milica R, SRECKOVIC, Vesna Dimitrijevic, MANDIC, Ljuba M
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container_end_page 999
container_issue 12
container_start_page 994
container_title Clinical biochemistry
container_volume 44
creator ACIMOVIC, Jelena M
JOVANOVIC, Vesna B
VESELINOVIC, Milica R
SRECKOVIC, Vesna Dimitrijevic
MANDIC, Ljuba M
description Carbonylation of the protein amino, guanidino and thiol groups is one of the important causes of vascular complications in diabetes. We developed a simple spectrophotometric method for monitoring of the changes in the protein amino group contents during carbonylation. The method is based on the reaction of amino group with p-benzoquinone in the slightly alkaline media. It was applied during carbonylation in vitro with methylglyoxal and in vivo in 13 patients with type 2 diabetes and 20 healthy persons. The method is simple, fast, precise (RSD in the range of 1.2–1.8%) and accurate (recovery about 100%). The content of amino groups in human serum albumin isolated from diabetics was significantly lower (p < 0.01) in comparison with a control group. The method developed is suitable for quantification of protein amino groups during in vitro carbonylation as well as for clinical practice.
doi_str_mv 10.1016/j.clinbiochem.2011.05.019
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We developed a simple spectrophotometric method for monitoring of the changes in the protein amino group contents during carbonylation. The method is based on the reaction of amino group with p-benzoquinone in the slightly alkaline media. It was applied during carbonylation in vitro with methylglyoxal and in vivo in 13 patients with type 2 diabetes and 20 healthy persons. The method is simple, fast, precise (RSD in the range of 1.2–1.8%) and accurate (recovery about 100%). The content of amino groups in human serum albumin isolated from diabetics was significantly lower (p &lt; 0.01) in comparison with a control group. 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Target tissue resistance ; Female ; Humans ; Investigative techniques, diagnostic techniques (general aspects) ; Male ; Medical sciences ; Methylglyoxal ; Protein amino group ; Protein Carbonylation ; Proteins - analysis ; Proteins - chemistry ; Proteins - metabolism ; Pyruvaldehyde - chemistry ; Pyruvaldehyde - metabolism ; Serum Albumin - analysis ; Serum Albumin - chemistry ; Serum Albumin - metabolism ; Spectrophotometric determination with p-benzoquinone ; Spectrophotometry</subject><ispartof>Clinical biochemistry, 2011-08, Vol.44 (12), p.994-999</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2011 Elsevier B.V. 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We developed a simple spectrophotometric method for monitoring of the changes in the protein amino group contents during carbonylation. The method is based on the reaction of amino group with p-benzoquinone in the slightly alkaline media. It was applied during carbonylation in vitro with methylglyoxal and in vivo in 13 patients with type 2 diabetes and 20 healthy persons. The method is simple, fast, precise (RSD in the range of 1.2–1.8%) and accurate (recovery about 100%). The content of amino groups in human serum albumin isolated from diabetics was significantly lower (p &lt; 0.01) in comparison with a control group. 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Target tissue resistance</subject><subject>Female</subject><subject>Humans</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Methylglyoxal</subject><subject>Protein amino group</subject><subject>Protein Carbonylation</subject><subject>Proteins - analysis</subject><subject>Proteins - chemistry</subject><subject>Proteins - metabolism</subject><subject>Pyruvaldehyde - chemistry</subject><subject>Pyruvaldehyde - metabolism</subject><subject>Serum Albumin - analysis</subject><subject>Serum Albumin - chemistry</subject><subject>Serum Albumin - metabolism</subject><subject>Spectrophotometric determination with p-benzoquinone</subject><subject>Spectrophotometry</subject><issn>0009-9120</issn><issn>1873-2933</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkEuP0zAQgC0EYsvCX0DmgDgljBPbcY6o4iXtisveLXcyaV0ldrETpP33uLQ8jlxmNPI345mPsTcCagFCvz_WOPmw8xEPNNcNCFGDqkH0T9hGmK6tmr5tn7INAPRVLxq4YS9yPpaykUY_ZzeN0LK8wYbd39NyiAMfY-JzDH6JyYc9jyNfDsRPKS7kA3ezD5HvU1xPHA8u7CnzYf1Foku7GB4nt_gYXrJno5syvbrmW_bw6ePD9kt19-3z1-2Huwol6KUqAQw1ErvdSFp0KIxTkqgxrTTtqJSTQgkhFLaGtOx6HHunhxa1MrKcdsveXcaW_b6vlBc7-4w0TS5QXLM1nYEWFJzJ_kJiijknGu0p-dmlRyvAnl3ao_3HpT27tKBscVl6X19_WXczDX86f8srwNsr4DK6aUwuoM9_OSnLDbor3PbCUVHyw1OyGT0FpMEnwsUO0f_HOj8BxRKXsA</recordid><startdate>20110801</startdate><enddate>20110801</enddate><creator>ACIMOVIC, Jelena M</creator><creator>JOVANOVIC, Vesna B</creator><creator>VESELINOVIC, Milica R</creator><creator>SRECKOVIC, Vesna Dimitrijevic</creator><creator>MANDIC, Ljuba M</creator><general>Elsevier Inc</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20110801</creationdate><title>Method for monitoring of the protein amino group changes during carbonylation</title><author>ACIMOVIC, Jelena M ; JOVANOVIC, Vesna B ; VESELINOVIC, Milica R ; SRECKOVIC, Vesna Dimitrijevic ; MANDIC, Ljuba M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c406t-40608e24c7bfe617c18a54ee283483f55a4151115c38e6479cf9a6d3c6584933</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Benzoquinones - chemistry</topic><topic>Biological and medical sciences</topic><topic>Carbonylation</topic><topic>Case-Control Studies</topic><topic>Diabetes</topic><topic>Diabetes Mellitus, Type 2 - metabolism</topic><topic>Diabetes. Impaired glucose tolerance</topic><topic>Endocrine pancreas. Apud cells (diseases)</topic><topic>Endocrinopathies</topic><topic>Etiopathogenesis. Screening. Investigations. Target tissue resistance</topic><topic>Female</topic><topic>Humans</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Methylglyoxal</topic><topic>Protein amino group</topic><topic>Protein Carbonylation</topic><topic>Proteins - analysis</topic><topic>Proteins - chemistry</topic><topic>Proteins - metabolism</topic><topic>Pyruvaldehyde - chemistry</topic><topic>Pyruvaldehyde - metabolism</topic><topic>Serum Albumin - analysis</topic><topic>Serum Albumin - chemistry</topic><topic>Serum Albumin - metabolism</topic><topic>Spectrophotometric determination with p-benzoquinone</topic><topic>Spectrophotometry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>ACIMOVIC, Jelena M</creatorcontrib><creatorcontrib>JOVANOVIC, Vesna B</creatorcontrib><creatorcontrib>VESELINOVIC, Milica R</creatorcontrib><creatorcontrib>SRECKOVIC, Vesna Dimitrijevic</creatorcontrib><creatorcontrib>MANDIC, Ljuba M</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Clinical biochemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>ACIMOVIC, Jelena M</au><au>JOVANOVIC, Vesna B</au><au>VESELINOVIC, Milica R</au><au>SRECKOVIC, Vesna Dimitrijevic</au><au>MANDIC, Ljuba M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Method for monitoring of the protein amino group changes during carbonylation</atitle><jtitle>Clinical biochemistry</jtitle><addtitle>Clin Biochem</addtitle><date>2011-08-01</date><risdate>2011</risdate><volume>44</volume><issue>12</issue><spage>994</spage><epage>999</epage><pages>994-999</pages><issn>0009-9120</issn><eissn>1873-2933</eissn><abstract>Carbonylation of the protein amino, guanidino and thiol groups is one of the important causes of vascular complications in diabetes. We developed a simple spectrophotometric method for monitoring of the changes in the protein amino group contents during carbonylation. The method is based on the reaction of amino group with p-benzoquinone in the slightly alkaline media. It was applied during carbonylation in vitro with methylglyoxal and in vivo in 13 patients with type 2 diabetes and 20 healthy persons. The method is simple, fast, precise (RSD in the range of 1.2–1.8%) and accurate (recovery about 100%). The content of amino groups in human serum albumin isolated from diabetics was significantly lower (p &lt; 0.01) in comparison with a control group. The method developed is suitable for quantification of protein amino groups during in vitro carbonylation as well as for clinical practice.</abstract><cop>Amsterdam</cop><pub>Elsevier Inc</pub><pmid>21640090</pmid><doi>10.1016/j.clinbiochem.2011.05.019</doi><tpages>6</tpages></addata></record>
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subjects Benzoquinones - chemistry
Biological and medical sciences
Carbonylation
Case-Control Studies
Diabetes
Diabetes Mellitus, Type 2 - metabolism
Diabetes. Impaired glucose tolerance
Endocrine pancreas. Apud cells (diseases)
Endocrinopathies
Etiopathogenesis. Screening. Investigations. Target tissue resistance
Female
Humans
Investigative techniques, diagnostic techniques (general aspects)
Male
Medical sciences
Methylglyoxal
Protein amino group
Protein Carbonylation
Proteins - analysis
Proteins - chemistry
Proteins - metabolism
Pyruvaldehyde - chemistry
Pyruvaldehyde - metabolism
Serum Albumin - analysis
Serum Albumin - chemistry
Serum Albumin - metabolism
Spectrophotometric determination with p-benzoquinone
Spectrophotometry
title Method for monitoring of the protein amino group changes during carbonylation
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