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Public release date: 14-Nov-2012[ | E-mail |
Share ] Contact: Aaron Lohr
alohr@endo-society.org
240-482-1380
The Endocrine Society
Study shows reproductive risk factors linked to overall adiposity
Chevy Chase, MDAge at onset of menarche (first menstrual cycle) is associated with increased body mass index (BMI), waist circumference, and overall obesity in adulthood, according to a recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM).
Cardiovascular disease (CVD) is the leading cause of death in women in the United States. When compared to men, women may manifest their clinical disease later in life, rendering standard risk prediction algorithms less reliable in women. The current study uses a life course approach, which looks for associations between earlier life events and later health outcomes, to better understand and predict CVD risk in women at their pre-clinical stage.
"The purpose of this study was to examine whether female reproductive risk factors including onset of menarche, number of births over a lifetime (called parity), onset of menopause, and menopausal status are associated with indices of body fat composition," said Caroline S. Fox, MD, MPH, of the National Heart, Lung, and Blood Institute, and senior author of the study. "We found that earlier onset of menarche is associated with overall adiposity, whereas parity and menopausal age were not associated with adiposity measures. Post-menopausal women also had higher levels of overall adiposity, though this appeared to be mostly due to age and not menopausal status."
The study featured 1,638 women who participated in the Framingham Heart Study (FHS) between 2002 and 2005. These participants were aged 40 or older, weighed less than 160 kg and not pregnant. Study participants underwent a physical exam along with laboratory analyses to measure visceral adiposity (VAT, the "belly fat" around the abdomen) and subcutaneous adiposity (SAT, the fat under the skin). The study modeled the relationship between VAT, SAT, and female reproductive factors after adjusting for age, smoking status, alcohol intake, physical activity index, hormone replacement therapy and menopausal status. Results of the study showed the timing of the first menstrual cycle was associated with generalized but not regional body fat depots.
"This research suggests that select female reproductive risk factors, specifically onset of menarche, are associated with overall adiposity, but not with specific indices of body fat distribution," said Dr. Subbulaxmi Trikudanathan, of Harvard Medical School in Boston, MA, and lead author of the study . "Ultimately, the important question is whether female reproductive risk factors can be used to target lifestyle interventions in high risk women to prevent the metabolic consequences of obesity and cardiovascular disease."
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Other researchers working on the study include: Udo Hoffmann, and Ellen W. Seely of Harvard Medical School, Boston, Massachusetts; Alison Pedley of the National Institutes of Health, Bethesda, Maryland; and Joseph M. Massaro and Joanne M. Murabito of Boston University.
The article, "Association of female reproductive factors with body composition: the Framingham Heart Study," appears in the January 2013 issue of JCEM.
Founded in 1916, The Endocrine Society is the world's oldest, largest and most active organization devoted to research on hormones and the clinical practice of endocrinology. Today, The Endocrine Society's membership consists of over 15,000 scientists, physicians, educators, nurses and students in more than 100 countries. Society members represent all basic, applied and clinical interests in endocrinology. The Endocrine Society is based in Chevy Chase, Maryland. To learn more about the Society and the field of endocrinology, visit our site at www.endo-society.org. Follow us on Twitter at https://twitter.com/#!/EndoMedia.
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AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Public release date: 14-Nov-2012[ | E-mail |
Share ] Contact: Aaron Lohr
alohr@endo-society.org
240-482-1380
The Endocrine Society
Study shows reproductive risk factors linked to overall adiposity
Chevy Chase, MDAge at onset of menarche (first menstrual cycle) is associated with increased body mass index (BMI), waist circumference, and overall obesity in adulthood, according to a recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM).
Cardiovascular disease (CVD) is the leading cause of death in women in the United States. When compared to men, women may manifest their clinical disease later in life, rendering standard risk prediction algorithms less reliable in women. The current study uses a life course approach, which looks for associations between earlier life events and later health outcomes, to better understand and predict CVD risk in women at their pre-clinical stage.
"The purpose of this study was to examine whether female reproductive risk factors including onset of menarche, number of births over a lifetime (called parity), onset of menopause, and menopausal status are associated with indices of body fat composition," said Caroline S. Fox, MD, MPH, of the National Heart, Lung, and Blood Institute, and senior author of the study. "We found that earlier onset of menarche is associated with overall adiposity, whereas parity and menopausal age were not associated with adiposity measures. Post-menopausal women also had higher levels of overall adiposity, though this appeared to be mostly due to age and not menopausal status."
The study featured 1,638 women who participated in the Framingham Heart Study (FHS) between 2002 and 2005. These participants were aged 40 or older, weighed less than 160 kg and not pregnant. Study participants underwent a physical exam along with laboratory analyses to measure visceral adiposity (VAT, the "belly fat" around the abdomen) and subcutaneous adiposity (SAT, the fat under the skin). The study modeled the relationship between VAT, SAT, and female reproductive factors after adjusting for age, smoking status, alcohol intake, physical activity index, hormone replacement therapy and menopausal status. Results of the study showed the timing of the first menstrual cycle was associated with generalized but not regional body fat depots.
"This research suggests that select female reproductive risk factors, specifically onset of menarche, are associated with overall adiposity, but not with specific indices of body fat distribution," said Dr. Subbulaxmi Trikudanathan, of Harvard Medical School in Boston, MA, and lead author of the study . "Ultimately, the important question is whether female reproductive risk factors can be used to target lifestyle interventions in high risk women to prevent the metabolic consequences of obesity and cardiovascular disease."
###
Other researchers working on the study include: Udo Hoffmann, and Ellen W. Seely of Harvard Medical School, Boston, Massachusetts; Alison Pedley of the National Institutes of Health, Bethesda, Maryland; and Joseph M. Massaro and Joanne M. Murabito of Boston University.
The article, "Association of female reproductive factors with body composition: the Framingham Heart Study," appears in the January 2013 issue of JCEM.
Founded in 1916, The Endocrine Society is the world's oldest, largest and most active organization devoted to research on hormones and the clinical practice of endocrinology. Today, The Endocrine Society's membership consists of over 15,000 scientists, physicians, educators, nurses and students in more than 100 countries. Society members represent all basic, applied and clinical interests in endocrinology. The Endocrine Society is based in Chevy Chase, Maryland. To learn more about the Society and the field of endocrinology, visit our site at www.endo-society.org. Follow us on Twitter at https://twitter.com/#!/EndoMedia.
[ | E-mail | Share ] ?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Source: http://www.eurekalert.org/pub_releases/2012-11/tes-tof111212.php
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