Effects of Acquired Obesity on Endothelial Function in Monozygotic Twins

OBJECTIVE: To determine whether acquired obesity or accompanying metabolic changes such as adiponectin deficiency, insulin resistance, dyslipidemia, or visceral fat are associated, independent of genetic influences, with endothelial dysfunction by studying young adult monozygotic (MZ) twin pairs dis...

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Veröffentlicht in:Obesity (Silver Spring, Md.) Md.), 2006-05, Vol.14 (5), p.826-837
Hauptverfasser: Pietiläinen, Kirsi H, Bergholm, Robert, Rissanen, Aila, Kaprio, Jaakko, Häkkinen, Anna-Maija, Sattar, Naveed, Yki-Järvinen, Hannele
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container_end_page 837
container_issue 5
container_start_page 826
container_title Obesity (Silver Spring, Md.)
container_volume 14
creator Pietiläinen, Kirsi H
Bergholm, Robert
Rissanen, Aila
Kaprio, Jaakko
Häkkinen, Anna-Maija
Sattar, Naveed
Yki-Järvinen, Hannele
description OBJECTIVE: To determine whether acquired obesity or accompanying metabolic changes such as adiponectin deficiency, insulin resistance, dyslipidemia, or visceral fat are associated, independent of genetic influences, with endothelial dysfunction by studying young adult monozygotic (MZ) twin pairs discordant for obesity. RESEARCH METHODS AND PROCEDURES: Nine obesity-discordant (intra-pair difference in BMI, 3.8 to 10.1 kg/m²) and nine concordant (0 to 2.3 kg/m²) 24- to 27-year-old MZ twin pairs were identified from a population-based FinnTwin16-sample. Endothelial function was measured by blood flow responses to intrabrachial infusions of an endothelium-dependent (acetylcholine) and an endothelium-independent (sodium nitroprusside) vasodilator. Whole body insulin sensitivity was measured using the euglycemic insulin clamp technique, and forearm and body composition were measured with magnetic resonance imaging and DXA. In addition, serum levels of adiponectin, high-sensitivity C-reactive protein, and lipids were determined. RESULTS: The heavier co-twins of the discordant pairs had significantly lower whole body insulin sensitivity than the leaner co-twins. Blood flows/muscle volume during infusions of acetylcholine and sodium nitroprusside were not altered by obesity. However, intra-pair differences in serum adiponectin, intra-abdominal fat, and C-reactive protein were significantly correlated with those in endothelial function. Only the relationship between intra-pair differences in adiponectin and endothelial function persisted in multiple linear regression analysis. Obesity-concordant co-twins had comparable insulin sensitivity and endothelial function. DISCUSSION: In young adult MZ twins discordant for obesity, acquired adiponectin deficiency rather than obesity per se is an independent correlate of endothelial dysfunction.
doi_str_mv 10.1038/oby.2006.96
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However, intra-pair differences in serum adiponectin, intra-abdominal fat, and C-reactive protein were significantly correlated with those in endothelial function. Only the relationship between intra-pair differences in adiponectin and endothelial function persisted in multiple linear regression analysis. Obesity-concordant co-twins had comparable insulin sensitivity and endothelial function. 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RESEARCH METHODS AND PROCEDURES: Nine obesity-discordant (intra-pair difference in BMI, 3.8 to 10.1 kg/m²) and nine concordant (0 to 2.3 kg/m²) 24- to 27-year-old MZ twin pairs were identified from a population-based FinnTwin16-sample. Endothelial function was measured by blood flow responses to intrabrachial infusions of an endothelium-dependent (acetylcholine) and an endothelium-independent (sodium nitroprusside) vasodilator. Whole body insulin sensitivity was measured using the euglycemic insulin clamp technique, and forearm and body composition were measured with magnetic resonance imaging and DXA. In addition, serum levels of adiponectin, high-sensitivity C-reactive protein, and lipids were determined. RESULTS: The heavier co-twins of the discordant pairs had significantly lower whole body insulin sensitivity than the leaner co-twins. Blood flows/muscle volume during infusions of acetylcholine and sodium nitroprusside were not altered by obesity. However, intra-pair differences in serum adiponectin, intra-abdominal fat, and C-reactive protein were significantly correlated with those in endothelial function. Only the relationship between intra-pair differences in adiponectin and endothelial function persisted in multiple linear regression analysis. Obesity-concordant co-twins had comparable insulin sensitivity and endothelial function. DISCUSSION: In young adult MZ twins discordant for obesity, acquired adiponectin deficiency rather than obesity per se is an independent correlate of endothelial dysfunction.</description><subject>abdominal fat</subject><subject>Acetylcholine - pharmacology</subject><subject>adiponectin</subject><subject>Adiponectin - blood</subject><subject>adipose tissue</subject><subject>Adult</subject><subject>adults</subject><subject>blood flow</subject><subject>Blood Flow Velocity - drug effects</subject><subject>blood lipids</subject><subject>Blood Pressure - physiology</subject><subject>body composition</subject><subject>Body Composition - physiology</subject><subject>Body fat</subject><subject>Body Mass Index</subject><subject>C-reactive protein</subject><subject>C-Reactive Protein - metabolism</subject><subject>Cholesterol - blood</subject><subject>Cholesterol, HDL - blood</subject><subject>Cholesterol, LDL - blood</subject><subject>cytokines</subject><subject>Diabetes</subject><subject>Diseases in Twins - genetics</subject><subject>Diseases in Twins - physiopathology</subject><subject>Dose-Response Relationship, Drug</subject><subject>Endothelium</subject><subject>Endothelium, Vascular - physiopathology</subject><subject>environmental factors</subject><subject>Female</subject><subject>Forearm - blood supply</subject><subject>genetic factors</subject><subject>genetic variation</subject><subject>Heart Rate - physiology</subject><subject>hormones</subject><subject>Hospitals</subject><subject>Humans</subject><subject>hyperlipidemia</subject><subject>insulin</subject><subject>Insulin resistance</subject><subject>Insulin Resistance - physiology</subject><subject>Male</subject><subject>Metabolic disorders</subject><subject>monozygotic twins</subject><subject>muscle</subject><subject>Nitroprusside - pharmacology</subject><subject>Obesity</subject><subject>Obesity - blood</subject><subject>Obesity - genetics</subject><subject>Obesity - physiopathology</subject><subject>Proteins</subject><subject>Public health</subject><subject>Regression Analysis</subject><subject>Research methodology</subject><subject>Triglycerides - blood</subject><subject>Twins</subject><subject>Twins, Monozygotic</subject><subject>vasodilator agents</subject><subject>Vasodilator Agents - pharmacology</subject><subject>visceral fat</subject><subject>Weight control</subject><subject>Young adults</subject><issn>1071-7323</issn><issn>1930-7381</issn><issn>1550-8528</issn><issn>1930-739X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp90cFvFCEUBnBiNLZWT951EhMvZrbvwcAwx7bZWpOaPdgePBGGgUozCy3MpBn_ell3o4kHTxDy-x7kg5C3CCsEJk9jv6wogFh14hk5Rs6hlpzK52UPLdYto-yIvMr5HgBFI_ElOUIhOceOHpOrtXPWTLmKrjozj7NPdqg2vc1-WqoYqnUY4vTDjl6P1eUczOTLoQ_V1xjiz-UuTt5UN08-5NfkhdNjtm8O6wm5vVzfXFzV15vPXy7OrmvTNAB1Cxac06CpgE63A1regzHSDq1pkFEHQiNF0wrb9LrXohO8Y6Z1pjccnGYn5ON-7kOKj7PNk9r6bOw46mDjnJWQQoBALPDDP_A-zimUt6lSGzQNp6wp6tNemRRzTtaph-S3Oi0F7ZxUpV61q1d1ouh3h5lzv7XDX3vos4DTPXjyo13-N0ttzr-jhJJ4v08EPc3J_okUupO_Lz0Ip6PSd8lndfuNAjJAkF35XfYL0bqX7w</recordid><startdate>200605</startdate><enddate>200605</enddate><creator>Pietiläinen, Kirsi H</creator><creator>Bergholm, Robert</creator><creator>Rissanen, Aila</creator><creator>Kaprio, Jaakko</creator><creator>Häkkinen, Anna-Maija</creator><creator>Sattar, Naveed</creator><creator>Yki-Järvinen, Hannele</creator><general>The North American Association for the Study of Obesity</general><general>Blackwell Publishing Ltd</general><scope>FBQ</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>K9.</scope><scope>7X8</scope></search><sort><creationdate>200605</creationdate><title>Effects of Acquired Obesity on Endothelial Function in Monozygotic Twins</title><author>Pietiläinen, Kirsi H ; Bergholm, Robert ; Rissanen, Aila ; Kaprio, Jaakko ; Häkkinen, Anna-Maija ; Sattar, Naveed ; Yki-Järvinen, Hannele</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4400-70e0ffa0a2609a7d1e5b0cc8ed7c4132f06a121c76e4baba696593c7fcbc50fa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>abdominal fat</topic><topic>Acetylcholine - pharmacology</topic><topic>adiponectin</topic><topic>Adiponectin - blood</topic><topic>adipose tissue</topic><topic>Adult</topic><topic>adults</topic><topic>blood flow</topic><topic>Blood Flow Velocity - drug effects</topic><topic>blood lipids</topic><topic>Blood Pressure - physiology</topic><topic>body composition</topic><topic>Body Composition - physiology</topic><topic>Body fat</topic><topic>Body Mass Index</topic><topic>C-reactive protein</topic><topic>C-Reactive Protein - metabolism</topic><topic>Cholesterol - blood</topic><topic>Cholesterol, HDL - blood</topic><topic>Cholesterol, LDL - blood</topic><topic>cytokines</topic><topic>Diabetes</topic><topic>Diseases in Twins - genetics</topic><topic>Diseases in Twins - physiopathology</topic><topic>Dose-Response Relationship, Drug</topic><topic>Endothelium</topic><topic>Endothelium, Vascular - physiopathology</topic><topic>environmental factors</topic><topic>Female</topic><topic>Forearm - blood supply</topic><topic>genetic factors</topic><topic>genetic variation</topic><topic>Heart Rate - physiology</topic><topic>hormones</topic><topic>Hospitals</topic><topic>Humans</topic><topic>hyperlipidemia</topic><topic>insulin</topic><topic>Insulin resistance</topic><topic>Insulin Resistance - physiology</topic><topic>Male</topic><topic>Metabolic disorders</topic><topic>monozygotic twins</topic><topic>muscle</topic><topic>Nitroprusside - pharmacology</topic><topic>Obesity</topic><topic>Obesity - blood</topic><topic>Obesity - genetics</topic><topic>Obesity - physiopathology</topic><topic>Proteins</topic><topic>Public health</topic><topic>Regression Analysis</topic><topic>Research methodology</topic><topic>Triglycerides - blood</topic><topic>Twins</topic><topic>Twins, Monozygotic</topic><topic>vasodilator agents</topic><topic>Vasodilator Agents - pharmacology</topic><topic>visceral fat</topic><topic>Weight control</topic><topic>Young adults</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pietiläinen, Kirsi H</creatorcontrib><creatorcontrib>Bergholm, Robert</creatorcontrib><creatorcontrib>Rissanen, Aila</creatorcontrib><creatorcontrib>Kaprio, Jaakko</creatorcontrib><creatorcontrib>Häkkinen, Anna-Maija</creatorcontrib><creatorcontrib>Sattar, Naveed</creatorcontrib><creatorcontrib>Yki-Järvinen, Hannele</creatorcontrib><collection>AGRIS</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>Obesity (Silver Spring, Md.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pietiläinen, Kirsi H</au><au>Bergholm, Robert</au><au>Rissanen, Aila</au><au>Kaprio, Jaakko</au><au>Häkkinen, Anna-Maija</au><au>Sattar, Naveed</au><au>Yki-Järvinen, Hannele</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of Acquired Obesity on Endothelial Function in Monozygotic Twins</atitle><jtitle>Obesity (Silver Spring, Md.)</jtitle><addtitle>Obesity (Silver Spring)</addtitle><date>2006-05</date><risdate>2006</risdate><volume>14</volume><issue>5</issue><spage>826</spage><epage>837</epage><pages>826-837</pages><issn>1071-7323</issn><issn>1930-7381</issn><eissn>1550-8528</eissn><eissn>1930-739X</eissn><abstract>OBJECTIVE: To determine whether acquired obesity or accompanying metabolic changes such as adiponectin deficiency, insulin resistance, dyslipidemia, or visceral fat are associated, independent of genetic influences, with endothelial dysfunction by studying young adult monozygotic (MZ) twin pairs discordant for obesity. RESEARCH METHODS AND PROCEDURES: Nine obesity-discordant (intra-pair difference in BMI, 3.8 to 10.1 kg/m²) and nine concordant (0 to 2.3 kg/m²) 24- to 27-year-old MZ twin pairs were identified from a population-based FinnTwin16-sample. Endothelial function was measured by blood flow responses to intrabrachial infusions of an endothelium-dependent (acetylcholine) and an endothelium-independent (sodium nitroprusside) vasodilator. Whole body insulin sensitivity was measured using the euglycemic insulin clamp technique, and forearm and body composition were measured with magnetic resonance imaging and DXA. In addition, serum levels of adiponectin, high-sensitivity C-reactive protein, and lipids were determined. RESULTS: The heavier co-twins of the discordant pairs had significantly lower whole body insulin sensitivity than the leaner co-twins. Blood flows/muscle volume during infusions of acetylcholine and sodium nitroprusside were not altered by obesity. However, intra-pair differences in serum adiponectin, intra-abdominal fat, and C-reactive protein were significantly correlated with those in endothelial function. Only the relationship between intra-pair differences in adiponectin and endothelial function persisted in multiple linear regression analysis. Obesity-concordant co-twins had comparable insulin sensitivity and endothelial function. DISCUSSION: In young adult MZ twins discordant for obesity, acquired adiponectin deficiency rather than obesity per se is an independent correlate of endothelial dysfunction.</abstract><cop>Oxford, UK</cop><pub>The North American Association for the Study of Obesity</pub><pmid>16855192</pmid><doi>10.1038/oby.2006.96</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record>
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identifier ISSN: 1071-7323
ispartof Obesity (Silver Spring, Md.), 2006-05, Vol.14 (5), p.826-837
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source MEDLINE; Wiley Free Content; EZB-FREE-00999 freely available EZB journals; Wiley Online Library All Journals
subjects abdominal fat
Acetylcholine - pharmacology
adiponectin
Adiponectin - blood
adipose tissue
Adult
adults
blood flow
Blood Flow Velocity - drug effects
blood lipids
Blood Pressure - physiology
body composition
Body Composition - physiology
Body fat
Body Mass Index
C-reactive protein
C-Reactive Protein - metabolism
Cholesterol - blood
Cholesterol, HDL - blood
Cholesterol, LDL - blood
cytokines
Diabetes
Diseases in Twins - genetics
Diseases in Twins - physiopathology
Dose-Response Relationship, Drug
Endothelium
Endothelium, Vascular - physiopathology
environmental factors
Female
Forearm - blood supply
genetic factors
genetic variation
Heart Rate - physiology
hormones
Hospitals
Humans
hyperlipidemia
insulin
Insulin resistance
Insulin Resistance - physiology
Male
Metabolic disorders
monozygotic twins
muscle
Nitroprusside - pharmacology
Obesity
Obesity - blood
Obesity - genetics
Obesity - physiopathology
Proteins
Public health
Regression Analysis
Research methodology
Triglycerides - blood
Twins
Twins, Monozygotic
vasodilator agents
Vasodilator Agents - pharmacology
visceral fat
Weight control
Young adults
title Effects of Acquired Obesity on Endothelial Function in Monozygotic Twins
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