Seungyoun Jung1, Olga Goloubeva1, Nola Hylton2, Catherine Klifa3, Erin LeBlanc4, John Shepherd2,5, Linda Snetselaar6, Linda Van Horn7, Joanne F Dorgan8. 1. Department of Epidemiology and Public Health, University of Maryland School of Medicine, Howard Hall 102E, Baltimore, MD, 21201, USA. 2. Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA. 3. Dangeard Group, Luynes, France. 4. Kaiser Permanente Center for Health Research, Portland, OR, USA. 5. University of Hawaii Cancer Center, Honolulu, HI, USA. 6. Department of Epidemiology, University of Iowa, Iowa City, IA, USA. 7. Feinberg School of Medicine, Northwestern University, Chicago, IL, USA. 8. Department of Epidemiology and Public Health, University of Maryland School of Medicine, Howard Hall 102E, Baltimore, MD, 21201, USA. jdorgan@som.umaryland.edu.
Abstract
PURPOSE:Carbohydrate intake increases postprandial insulin secretion and may affect breast density, a strong risk factor for breast cancer, early in life. We examined associations of adolescent and early adulthood intakes of total carbohydrates, glycemic index/load, fiber, and simple sugars with breast density among 182 young women. METHODS: Diet was assessed using three 24-h recalls at each of five Dietary Intervention Study in Children (DISC) clinic visits when participants were age 10-19 years and at the DISC06 Follow-Up Study clinic visit when participants were age 25-29 years. Associations between energy-adjusted carbohydrates and MRI-measured percent dense breast volume (%DBV) and absolute dense breast volume (ADBV) at 25-29 years were quantified using multivariable-adjusted mixed-effects linear models. RESULTS:Adolescent sucrose intakes and premenarcheal total carbohydrates intakes were modestly associated with higher %DBV (mean %DBVQ1 vs Q4, 16.6 vs 23.5% for sucrose; and 17.2 vs 22.3% for premenarcheal total carbohydrates, all Ptrend ≤ 0.02), but not with ADBV. However, adolescent intakes of fiber and fructose were not associated with %DBV and ADBV. Early adulthood intakes of total carbohydrates, glycemic index/load, fiber, and simple sugars were not associated with %DBV and ADBV. CONCLUSIONS:Insulinemic carbohydrate diet during puberty may be associated with adulthood breast density, but our findings need replication in larger studies. Clinical Trials Registration ClinicalTrials.gov Identifier, NCT00458588 April 9, 2007; NCT00000459 October 27, 1999.
RCT Entities:
PURPOSE:Carbohydrate intake increases postprandial insulin secretion and may affect breast density, a strong risk factor for breast cancer, early in life. We examined associations of adolescent and early adulthood intakes of total carbohydrates, glycemic index/load, fiber, and simple sugars with breast density among 182 young women. METHODS: Diet was assessed using three 24-h recalls at each of five Dietary Intervention Study in Children (DISC) clinic visits when participants were age 10-19 years and at the DISC06 Follow-Up Study clinic visit when participants were age 25-29 years. Associations between energy-adjusted carbohydrates and MRI-measured percent dense breast volume (%DBV) and absolute dense breast volume (ADBV) at 25-29 years were quantified using multivariable-adjusted mixed-effects linear models. RESULTS: Adolescent sucrose intakes and premenarcheal total carbohydrates intakes were modestly associated with higher %DBV (mean %DBVQ1 vs Q4, 16.6 vs 23.5% for sucrose; and 17.2 vs 22.3% for premenarcheal total carbohydrates, all Ptrend ≤ 0.02), but not with ADBV. However, adolescent intakes of fiber and fructose were not associated with %DBV and ADBV. Early adulthood intakes of total carbohydrates, glycemic index/load, fiber, and simple sugars were not associated with %DBV and ADBV. CONCLUSIONS: Insulinemic carbohydrate diet during puberty may be associated with adulthood breast density, but our findings need replication in larger studies. Clinical Trials Registration ClinicalTrials.gov Identifier, NCT00458588 April 9, 2007; NCT00000459 October 27, 1999.
Entities:
Keywords:
Absolute dense breast volume; Absolute non-dense breast volume; Breast cancer; Breast density; Carbohydrate; Fiber; Fructose; Glycemic index; Glycemic load; Sucrose; Timing of exposure; Young women
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