Genetic ancestry-smoking interactions and lung function in African Americans: a cohort study.
<h4>Background</h4>Smoking tobacco reduces lung function. African Americans have both lower lung function and decreased metabolism of tobacco smoke compared to European Americans. African ancestry is also associated with lower pulmonary function in African Americans. We aimed to determin...
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Public Library of Science (PLoS)
2012-01-01
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| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0039541&type=printable |
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| author | Melinda C Aldrich Rajesh Kumar Laura A Colangelo L Keoki Williams Saunak Sen Stephen B Kritchevsky Bernd Meibohm Joshua Galanter Donglei Hu Christopher R Gignoux Yongmei Liu Tamara B Harris Elad Ziv Joseph Zmuda Melissa Garcia Tennille S Leak Marilyn G Foreman Lewis J Smith Myriam Fornage Kiang Liu Esteban G Burchard Health ABC and CARDIA Studies Groups |
| author_facet | Melinda C Aldrich Rajesh Kumar Laura A Colangelo L Keoki Williams Saunak Sen Stephen B Kritchevsky Bernd Meibohm Joshua Galanter Donglei Hu Christopher R Gignoux Yongmei Liu Tamara B Harris Elad Ziv Joseph Zmuda Melissa Garcia Tennille S Leak Marilyn G Foreman Lewis J Smith Myriam Fornage Kiang Liu Esteban G Burchard Health ABC and CARDIA Studies Groups |
| author_sort | Melinda C Aldrich |
| collection | DOAJ |
| description | <h4>Background</h4>Smoking tobacco reduces lung function. African Americans have both lower lung function and decreased metabolism of tobacco smoke compared to European Americans. African ancestry is also associated with lower pulmonary function in African Americans. We aimed to determine whether African ancestry modifies the association between smoking and lung function and its rate of decline in African Americans.<h4>Methodology/principal findings</h4>We evaluated a prospective ongoing cohort of 1,281 African Americans participating in the Health, Aging, and Body Composition (Health ABC) Study initiated in 1997. We also examined an ongoing prospective cohort initiated in 1985 of 1,223 African Americans in the Coronary Artery Disease in Young Adults (CARDIA) Study. Pulmonary function and tobacco smoking exposure were measured at baseline and repeatedly over the follow-up period. Individual genetic ancestry proportions were estimated using ancestry informative markers selected to distinguish European and West African ancestry. African Americans with a high proportion of African ancestry had lower baseline forced expiratory volume in one second (FEV₁) per pack-year of smoking (-5.7 ml FEV₁/ smoking pack-year) compared with smokers with lower African ancestry (-4.6 ml in FEV₁/ smoking pack-year) (interaction P value = 0.17). Longitudinal analyses revealed a suggestive interaction between smoking, and African ancestry on the rate of FEV(1) decline in Health ABC and independently replicated in CARDIA.<h4>Conclusions/significance</h4>African American individuals with a high proportion of African ancestry are at greater risk for losing lung function while smoking. |
| format | Article |
| id | doaj-art-4771a3039b7e41c19d779e0e2a3e7bf0 |
| institution | OA Journals |
| issn | 1932-6203 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Public Library of Science (PLoS) |
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| series | PLoS ONE |
| spelling | doaj-art-4771a3039b7e41c19d779e0e2a3e7bf02025-08-20T02:30:51ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0176e3954110.1371/journal.pone.0039541Genetic ancestry-smoking interactions and lung function in African Americans: a cohort study.Melinda C AldrichRajesh KumarLaura A ColangeloL Keoki WilliamsSaunak SenStephen B KritchevskyBernd MeibohmJoshua GalanterDonglei HuChristopher R GignouxYongmei LiuTamara B HarrisElad ZivJoseph ZmudaMelissa GarciaTennille S LeakMarilyn G ForemanLewis J SmithMyriam FornageKiang LiuEsteban G BurchardHealth ABC and CARDIA Studies Groups<h4>Background</h4>Smoking tobacco reduces lung function. African Americans have both lower lung function and decreased metabolism of tobacco smoke compared to European Americans. African ancestry is also associated with lower pulmonary function in African Americans. We aimed to determine whether African ancestry modifies the association between smoking and lung function and its rate of decline in African Americans.<h4>Methodology/principal findings</h4>We evaluated a prospective ongoing cohort of 1,281 African Americans participating in the Health, Aging, and Body Composition (Health ABC) Study initiated in 1997. We also examined an ongoing prospective cohort initiated in 1985 of 1,223 African Americans in the Coronary Artery Disease in Young Adults (CARDIA) Study. Pulmonary function and tobacco smoking exposure were measured at baseline and repeatedly over the follow-up period. Individual genetic ancestry proportions were estimated using ancestry informative markers selected to distinguish European and West African ancestry. African Americans with a high proportion of African ancestry had lower baseline forced expiratory volume in one second (FEV₁) per pack-year of smoking (-5.7 ml FEV₁/ smoking pack-year) compared with smokers with lower African ancestry (-4.6 ml in FEV₁/ smoking pack-year) (interaction P value = 0.17). Longitudinal analyses revealed a suggestive interaction between smoking, and African ancestry on the rate of FEV(1) decline in Health ABC and independently replicated in CARDIA.<h4>Conclusions/significance</h4>African American individuals with a high proportion of African ancestry are at greater risk for losing lung function while smoking.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0039541&type=printable |
| spellingShingle | Melinda C Aldrich Rajesh Kumar Laura A Colangelo L Keoki Williams Saunak Sen Stephen B Kritchevsky Bernd Meibohm Joshua Galanter Donglei Hu Christopher R Gignoux Yongmei Liu Tamara B Harris Elad Ziv Joseph Zmuda Melissa Garcia Tennille S Leak Marilyn G Foreman Lewis J Smith Myriam Fornage Kiang Liu Esteban G Burchard Health ABC and CARDIA Studies Groups Genetic ancestry-smoking interactions and lung function in African Americans: a cohort study. PLoS ONE |
| title | Genetic ancestry-smoking interactions and lung function in African Americans: a cohort study. |
| title_full | Genetic ancestry-smoking interactions and lung function in African Americans: a cohort study. |
| title_fullStr | Genetic ancestry-smoking interactions and lung function in African Americans: a cohort study. |
| title_full_unstemmed | Genetic ancestry-smoking interactions and lung function in African Americans: a cohort study. |
| title_short | Genetic ancestry-smoking interactions and lung function in African Americans: a cohort study. |
| title_sort | genetic ancestry smoking interactions and lung function in african americans a cohort study |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0039541&type=printable |
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