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Changes in markers of oxidative stress and DNA damage in human visceral adipose tissue from subjects with obesity and type 2 diabetes

D.A. Jones, S.L. Prior, J.D. Barry, S. Caplin, J.N. Baxter, J.W. Stephens, Sarah Prior Orcid Logo, Jeffrey Stephens Orcid Logo, Danielle Jones

Diabetes Research and Clinical Practice, Volume: 106, Issue: 3, Pages: 627 - 633

Swansea University Authors: Sarah Prior Orcid Logo, Jeffrey Stephens Orcid Logo, Danielle Jones

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DOI (Published version): 10.1016/j.diabres.2014.09.054

Abstract

AimsIn the past 30 years, prevalence of obesity has almost trebled resulting in an increased incidence of type 2 diabetes mellitus and other co-morbidities. Visceral adipose tissue is believed to play a vital role, but underlying mechanisms remain unclear. Our aim was to investigate changes in marke...

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Published in: Diabetes Research and Clinical Practice
Published: 2014
URI: https://cronfa.swan.ac.uk/Record/cronfa19724
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first_indexed 2014-12-06T02:56:50Z
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fullrecord <?xml version="1.0"?><rfc1807><datestamp>2018-05-09T15:26:13.6058382</datestamp><bib-version>v2</bib-version><id>19724</id><entry>2014-12-05</entry><title>Changes in markers of oxidative stress and DNA damage in human visceral adipose tissue from subjects with obesity and type 2 diabetes</title><swanseaauthors><author><sid>cdda101035997acfaa6fdf17097f52b2</sid><ORCID>0000-0001-8703-8092</ORCID><firstname>Sarah</firstname><surname>Prior</surname><name>Sarah Prior</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>5219d126f97f8f884bdb622099bd41de</sid><ORCID>0000-0003-2228-086X</ORCID><firstname>Jeffrey</firstname><surname>Stephens</surname><name>Jeffrey Stephens</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>4d474dbca816c2c209faef443be18a66</sid><firstname>Danielle</firstname><surname>Jones</surname><name>Danielle Jones</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2014-12-05</date><deptcode>BMS</deptcode><abstract>AimsIn the past 30 years, prevalence of obesity has almost trebled resulting in an increased incidence of type 2 diabetes mellitus and other co-morbidities. Visceral adipose tissue is believed to play a vital role, but underlying mechanisms remain unclear. Our aim was to investigate changes in markers of oxidative damage in human visceral adipose tissue to determine levels of oxidative burden that may be attributed to obesity and/or diabetes.MethodsVisceral adipose tissue samples from 61 subjects undergoing abdominal surgery grouped as lean, obese and obese with type 2 diabetes mellitus, were examined using 3 different markers of oxidative stress. Malondialdehyde (MDA) concentration was measured as a marker of lipid peroxidation, telomere length and Comet assay as markers of oxidative DNA damage.ResultsNo significant difference in MDA concentration, telomere length and DNA damage was observed between groups, although longer telomere lengths were seen in the obese with diabetes group compared to the obese group (P&#x2005;&amp;#60;&#x2005;0.05). Lower MDA concentration and longer telomere length were seen in subjects with diabetes compared to those without (P&#x2005;&amp;#60;&#x2005;0.05). DNA damage, analysed via Comet assay, was significantly lower in subjects with diabetes compared to those without (P&#x2005;&amp;#60;&#x2005;0.05).ConclusionA paradoxical decrease in oxidative stress and DNA damage was observed in samples from subjects with type 2 diabetes mellitus. Further work is required to investigate this further, however this phenomenon may be due to an up regulation of antioxidant defences in adipose tissue.</abstract><type>Journal Article</type><journal>Diabetes Research and Clinical Practice</journal><volume>106</volume><journalNumber>3</journalNumber><paginationStart>627</paginationStart><paginationEnd>633</paginationEnd><publisher/><keywords>Keywords: Oxidative stress, Obesity, Type 2 diabetes mellitus</keywords><publishedDay>31</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2014</publishedYear><publishedDate>2014-12-31</publishedDate><doi>10.1016/j.diabres.2014.09.054</doi><url/><notes></notes><college>COLLEGE NANME</college><department>Biomedical Sciences</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>BMS</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2018-05-09T15:26:13.6058382</lastEdited><Created>2014-12-05T14:27:51.8411884</Created><path><level id="1">Swansea University Medical School</level><level id="2">Medicine</level></path><authors><author><firstname>D.A.</firstname><surname>Jones</surname><order>1</order></author><author><firstname>S.L.</firstname><surname>Prior</surname><order>2</order></author><author><firstname>J.D.</firstname><surname>Barry</surname><order>3</order></author><author><firstname>S.</firstname><surname>Caplin</surname><order>4</order></author><author><firstname>J.N.</firstname><surname>Baxter</surname><order>5</order></author><author><firstname>J.W.</firstname><surname>Stephens</surname><order>6</order></author><author><firstname>Sarah</firstname><surname>Prior</surname><orcid>0000-0001-8703-8092</orcid><order>7</order></author><author><firstname>Jeffrey</firstname><surname>Stephens</surname><orcid>0000-0003-2228-086X</orcid><order>8</order></author><author><firstname>Danielle</firstname><surname>Jones</surname><order>9</order></author></authors><documents/><OutputDurs/></rfc1807>
spelling 2018-05-09T15:26:13.6058382 v2 19724 2014-12-05 Changes in markers of oxidative stress and DNA damage in human visceral adipose tissue from subjects with obesity and type 2 diabetes cdda101035997acfaa6fdf17097f52b2 0000-0001-8703-8092 Sarah Prior Sarah Prior true false 5219d126f97f8f884bdb622099bd41de 0000-0003-2228-086X Jeffrey Stephens Jeffrey Stephens true false 4d474dbca816c2c209faef443be18a66 Danielle Jones Danielle Jones true false 2014-12-05 BMS AimsIn the past 30 years, prevalence of obesity has almost trebled resulting in an increased incidence of type 2 diabetes mellitus and other co-morbidities. Visceral adipose tissue is believed to play a vital role, but underlying mechanisms remain unclear. Our aim was to investigate changes in markers of oxidative damage in human visceral adipose tissue to determine levels of oxidative burden that may be attributed to obesity and/or diabetes.MethodsVisceral adipose tissue samples from 61 subjects undergoing abdominal surgery grouped as lean, obese and obese with type 2 diabetes mellitus, were examined using 3 different markers of oxidative stress. Malondialdehyde (MDA) concentration was measured as a marker of lipid peroxidation, telomere length and Comet assay as markers of oxidative DNA damage.ResultsNo significant difference in MDA concentration, telomere length and DNA damage was observed between groups, although longer telomere lengths were seen in the obese with diabetes group compared to the obese group (P &#60; 0.05). Lower MDA concentration and longer telomere length were seen in subjects with diabetes compared to those without (P &#60; 0.05). DNA damage, analysed via Comet assay, was significantly lower in subjects with diabetes compared to those without (P &#60; 0.05).ConclusionA paradoxical decrease in oxidative stress and DNA damage was observed in samples from subjects with type 2 diabetes mellitus. Further work is required to investigate this further, however this phenomenon may be due to an up regulation of antioxidant defences in adipose tissue. Journal Article Diabetes Research and Clinical Practice 106 3 627 633 Keywords: Oxidative stress, Obesity, Type 2 diabetes mellitus 31 12 2014 2014-12-31 10.1016/j.diabres.2014.09.054 COLLEGE NANME Biomedical Sciences COLLEGE CODE BMS Swansea University 2018-05-09T15:26:13.6058382 2014-12-05T14:27:51.8411884 Swansea University Medical School Medicine D.A. Jones 1 S.L. Prior 2 J.D. Barry 3 S. Caplin 4 J.N. Baxter 5 J.W. Stephens 6 Sarah Prior 0000-0001-8703-8092 7 Jeffrey Stephens 0000-0003-2228-086X 8 Danielle Jones 9
title Changes in markers of oxidative stress and DNA damage in human visceral adipose tissue from subjects with obesity and type 2 diabetes
spellingShingle Changes in markers of oxidative stress and DNA damage in human visceral adipose tissue from subjects with obesity and type 2 diabetes
Sarah Prior
Jeffrey Stephens
Danielle Jones
title_short Changes in markers of oxidative stress and DNA damage in human visceral adipose tissue from subjects with obesity and type 2 diabetes
title_full Changes in markers of oxidative stress and DNA damage in human visceral adipose tissue from subjects with obesity and type 2 diabetes
title_fullStr Changes in markers of oxidative stress and DNA damage in human visceral adipose tissue from subjects with obesity and type 2 diabetes
title_full_unstemmed Changes in markers of oxidative stress and DNA damage in human visceral adipose tissue from subjects with obesity and type 2 diabetes
title_sort Changes in markers of oxidative stress and DNA damage in human visceral adipose tissue from subjects with obesity and type 2 diabetes
author_id_str_mv cdda101035997acfaa6fdf17097f52b2
5219d126f97f8f884bdb622099bd41de
4d474dbca816c2c209faef443be18a66
author_id_fullname_str_mv cdda101035997acfaa6fdf17097f52b2_***_Sarah Prior
5219d126f97f8f884bdb622099bd41de_***_Jeffrey Stephens
4d474dbca816c2c209faef443be18a66_***_Danielle Jones
author Sarah Prior
Jeffrey Stephens
Danielle Jones
author2 D.A. Jones
S.L. Prior
J.D. Barry
S. Caplin
J.N. Baxter
J.W. Stephens
Sarah Prior
Jeffrey Stephens
Danielle Jones
format Journal article
container_title Diabetes Research and Clinical Practice
container_volume 106
container_issue 3
container_start_page 627
publishDate 2014
institution Swansea University
doi_str_mv 10.1016/j.diabres.2014.09.054
college_str Swansea University Medical School
hierarchytype
hierarchy_top_id swanseauniversitymedicalschool
hierarchy_top_title Swansea University Medical School
hierarchy_parent_id swanseauniversitymedicalschool
hierarchy_parent_title Swansea University Medical School
department_str Medicine{{{_:::_}}}Swansea University Medical School{{{_:::_}}}Medicine
document_store_str 0
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description AimsIn the past 30 years, prevalence of obesity has almost trebled resulting in an increased incidence of type 2 diabetes mellitus and other co-morbidities. Visceral adipose tissue is believed to play a vital role, but underlying mechanisms remain unclear. Our aim was to investigate changes in markers of oxidative damage in human visceral adipose tissue to determine levels of oxidative burden that may be attributed to obesity and/or diabetes.MethodsVisceral adipose tissue samples from 61 subjects undergoing abdominal surgery grouped as lean, obese and obese with type 2 diabetes mellitus, were examined using 3 different markers of oxidative stress. Malondialdehyde (MDA) concentration was measured as a marker of lipid peroxidation, telomere length and Comet assay as markers of oxidative DNA damage.ResultsNo significant difference in MDA concentration, telomere length and DNA damage was observed between groups, although longer telomere lengths were seen in the obese with diabetes group compared to the obese group (P &#60; 0.05). Lower MDA concentration and longer telomere length were seen in subjects with diabetes compared to those without (P &#60; 0.05). DNA damage, analysed via Comet assay, was significantly lower in subjects with diabetes compared to those without (P &#60; 0.05).ConclusionA paradoxical decrease in oxidative stress and DNA damage was observed in samples from subjects with type 2 diabetes mellitus. Further work is required to investigate this further, however this phenomenon may be due to an up regulation of antioxidant defences in adipose tissue.
published_date 2014-12-31T03:37:41Z
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