High adipose LPL activity and adipocyte hypertrophy reduce visceral fat and metabolic risk in obese, older women

Monica C. Serra, Alice S. Ryan, John D. Sorkin, Knachelle H. Favor, Andrew P. Goldberg

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Objective To determine whether higher subcutaneous adipose tissue lipoprotein lipase activity (AT-LPLA) is associated with greater triglyceride (TG) storage in subcutaneous adipose tissue (SAT), thereby reducing visceral adipose tissue (VAT) accumulation and metabolic dysfunction. Methods Obese postmenopausal women (60 ± 1 years, mean ± SEM; N = 101) had body composition measured by DXA and CT and had fat aspirations to measure fat cell weight (FCW) and AT-LPLA. Women were ranked by visceral to total abdominal fat ratio (VAT/TAF), and the lowest and highest groups (n = 24) matched for % fat and age. Results The prevalence of metabolic dysfunction was 7-to 10-fold higher in women with high VAT/TAF (Ps < 0.01). Women with low VAT/TAF had 11% and 6% lower abdominal and gluteal FCW but 28% and 54% higher AT-LPLA/106 cells in abdominal and gluteal fat, respectively. Abdominal FCW correlated with AT-LPLA in women with low (r = 0.63, P < 0.01) but not high (r = 0.14, P = 0.52) VAT/TAF, and these lines differed in slope (P < 0.05) and intercept (P < 0.01), suggesting greater capacity for TG storage with low VAT/TAF. There were no relationships between gluteal FCW and AT-LPLA. The relationship between SAT and abdominal AT-LPLA (r = 0.39, P < 0.01) suggests that higher AT-LPLA promotes TG storage. Conclusions These results suggest that higher AT-LPLA is associated with SAT adipocyte hypertrophy, which reduces visceral adiposity and metabolic risk in obese, older women.

Original languageEnglish (US)
Pages (from-to)602-607
Number of pages6
JournalObesity
Volume23
Issue number3
DOIs
StatePublished - Mar 1 2015

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Endocrinology, Diabetes and Metabolism
  • Endocrinology
  • Nutrition and Dietetics

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