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- Title
Anatomical patterning of visceral adipose tissue: race, sex, and age variation.
- Authors
Demerath, Ellen W.; Sun, Shumei S.; Rogers, Nikki; Lee, Miryoung; Reed, Derek; Choh, Audrey C.; Couch, William; Czerwinski, Stefan A.; Chumlea, W. Cameron; Siervogel, Roger M.; Towne, Bradford
- Abstract
<bold>Objective: </bold>We tested sex, race, and age differences in the patterning of visceral adipose tissue (VAT) and subcutaneous adipose tissue.<bold>Research Methods and Procedures: </bold>Contiguous 1-cm-thick magnetic resonance (MR) images of the abdomen were collected from 820 African-American and white adults. Repeated-measures ANOVA was used to examine the effects of image location, sex, race, and age (>or=50 vs. <50 years) on adipose tissue areas. Maximum VAT area was identified for each subject from the raw data.<bold>Results: </bold>Compared to women, men had greater total VAT volume (p < 0.0001), and their maximum VAT area occurred higher in the abdomen (p < 0.0001). Among white men, maximim VAT area most frequently occurred 5 to 10 cm above L4-L5, whereas in the other groups, maximim VAT area most frequently occurred 1 to 4 cm above L4-L5 (p < 0.0001). African-American men had greater total VAT volume than African-American women (p < 0.01), but this sex difference was only significant using single images cranial to L4-L5 + 2 cm. Age-related increases in VAT tended to be greatest 5 to 10 cm above L4-L5 in men and near L4-L5 in women.<bold>Discussion: </bold>A single MR image 5 to 10 cm above L4-L5 may allow more accurate conclusions than the L4-L5 image regarding group differences in visceral adiposity.
- Subjects
HUMAN sexuality; RACE; AGE differences; ADIPOSE tissues; MAGNETIC resonance imaging; AFRICAN American men
- Publication
Obesity (19307381), 2007, Vol 15, Issue 12, p2984
- ISSN
1930-7381
- Publication type
journal article
- DOI
10.1038/oby.2007.356