Cancer Causes & Control

, Volume 18, Issue 2, pp 211–218

Prostatic fatty acids and cancer recurrence after radical prostatectomy for early-stage prostate cancer

  • Vincent L. Freeman
  • Robert C. Flanigan
  • Mohsen Meydani
Original Paper

DOI: 10.1007/s10552-006-0095-6

Cite this article as:
Freeman, V.L., Flanigan, R.C. & Meydani, M. Cancer Causes Control (2007) 18: 211. doi:10.1007/s10552-006-0095-6

Abstract

Objective:

Results from some observational studies suggest that diet and energy balance influence the clinical course of early-stage prostate cancer. To evaluate possible mechanisms, we prospectively examined the relation between prostatic concentrations of fatty acids at diagnosis and cancer recurrence following primary therapy.

Methods:

Fatty acids were measured by capillary gas chromatography in fresh, non-cancerous prostate tissue collected from 184 men undergoing radical prostatectomy for clinically localized prostate cancer. Their association with risk of biochemical disease recurrence (a rising serum prostate-specific antigen following a disease-free [<0.1 ng/ml] interval ≥6 months) was analyzed using Cox proportional hazards models incorporating patient age, body mass index, tumor characteristics at diagnosis, and ethnicity.

Results:

During an average follow-up of 48.7 months (median = 47), 14 patients experienced biochemical recurrence. Percent total polyunsaturated fatty acid and the ratio of oleic-to-stearic acid associated with risk (multivariable hazards ratio [HR] = 0.51, 95% confidence interval [CI] = 0.29 to 0.90, p = 0.021 and HR = 1.68, 95% CI = 1.21 to 2.33, p = 0.002, respectively, per 1 standard deviation increase).

Conclusions:

The results of this study are preliminary, but they suggest that pre-diagnostic prostatic concentrations of fatty acids associate with risk of biochemical recurrence following radical prostatectomy for clinically localized prostate cancer.

Keywords

Prostatic neoplasmsDiet and nutritionBody mass indexBiochemical recurrencePrognosis

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Vincent L. Freeman
    • 1
    • 2
    • 3
  • Robert C. Flanigan
    • 3
  • Mohsen Meydani
    • 4
  1. 1.Division of Epidemiology and Biostatistics, School of Public HealthUniversity of Illinois at ChicagoChicagoUSA
  2. 2.Center for Population Health and Health DisparitiesUniversity of Illinois at ChicagoChicagoUSA
  3. 3.Department of UrologyLoyola University Stritch School of MedicineMaywoodUSA
  4. 4.Vascular Biology Laboratory, Jean Mayer USDA Human Nutrition Research Center on AgingTufts UniversityBostonUSA