{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T10:00:11Z","timestamp":1785232811225,"version":"3.55.0"},"reference-count":40,"publisher":"Oxford University Press (OUP)","issue":"10","license":[{"start":{"date-parts":[[2012,5,15]],"date-time":"2012-05-15T00:00:00Z","timestamp":1337040000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2012,10,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>The rate of bone loss varies across the aging period via multiple complex mechanisms. Therefore, the role of genetic factors on bone loss may also change similarly. In this study, we investigated the effect of age on the genetic component of bone loss in a large twin-based longitudinal study. During 17 years of follow-up in TwinsUK and Healthy Ageing Twin Study (HATS), 15,491 hip and lumbar spine dual-energy X-ray absorptiometry (DXA) scans were performed in 7056 twins. Out of these subjects, 2716 female twins aged &amp;gt;35 years with at least two scans separated for &amp;gt;4 years (mean follow-up 9.7 years) were included in this analysis. We used a mixed-effects random-coefficients regression model to predict hip and spine bone mineral density (BMD) values for exact ages of 40, 45, 50, 55, 60, 65, 70, 75, and 80 years, with adjustment for baseline age, weight, height, and duration of hormone replacement therapy. We then estimated heritability of the changes in BMD measures between these age ranges. Heritability estimates for cross-sectional hip and spine BMD were high (ranging between 69% and 88%) at different ages. Heritability of change of BMD was lower and more variable, generally ranging from 0% to 40% for hip and 0% to 70% for spine; between age 40 and 45 years genetic factors explained 39.9% (95% confidence interval [CI], 25%\u201353%) of variance of BMD loss for total hip, 46.4% (95% CI, 32%\u201358%) for femoral neck, and 69.5% (95% CI, 59%\u201377%) for lumbar spine. These estimates decreased with increasing age, and there appeared to be no heritability of BMD changes after the age of 65 years. There was some evidence at the spine for shared genetic effects between cross-sectional and longitudinal BMD. Whereas genetic factors appear to have an important role in bone loss in early postmenopausal women, nongenetic mechanisms become more important determinants of bone loss with advanced age. \u00a9 2012 American Society for Bone and Mineral Research.<\/jats:p>","DOI":"10.1002\/jbmr.1659","type":"journal-article","created":{"date-parts":[[2012,5,15]],"date-time":"2012-05-15T13:46:20Z","timestamp":1337089580000},"page":"2170-2178","source":"Crossref","is-referenced-by-count":33,"title":["Effects of age on genetic influence on bone loss over 17 years in women: The Healthy Ageing Twin Study (HATS)"],"prefix":"10.1093","volume":"27","author":[{"given":"Alireza","family":"Moayyeri","sequence":"first","affiliation":[{"name":"Department of Twin Research and Genetic Epidemiology, King's College London, St. Thomas' Hospital, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher J","family":"Hammond","sequence":"additional","affiliation":[{"name":"Department of Twin Research and Genetic Epidemiology, King's College London, St. Thomas' Hospital, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Deborah J","family":"Hart","sequence":"additional","affiliation":[{"name":"Department of Twin Research and Genetic Epidemiology, King's College London, St. Thomas' Hospital, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timothy D","family":"Spector","sequence":"additional","affiliation":[{"name":"Department of Twin Research and Genetic Epidemiology, King's College London, St. Thomas' Hospital, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2012,5,15]]},"reference":[{"key":"2024020318294142800_bib1","doi-asserted-by":"crossref","first-page":"485","DOI":"10.1093\/ageing\/29.6.485","article-title":"Longitudinal studies of ageing: a key role in the evidence base for improving health and quality of life in older adults","volume":"29","author":"Huppert","year":"2000","journal-title":"Age Ageing."},{"key":"2024020318294142800_bib2","doi-asserted-by":"crossref","first-page":"341","DOI":"10.1159\/000052825","article-title":"Understanding ageing. 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