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A diet, physical activity, and stress reduction intervention in men with rising prostate-specific antigen after treatment for prostate cancer
- Source :
- Cancer Epidemiology. 36:e128-e136
- Publication Year :
- 2012
- Publisher :
- Elsevier BV, 2012.
-
Abstract
- Nearly 35% of men treated for prostate cancer (PrCA) will experience biochemically defined recurrence, noted by a rise in PSA, within 10 years of definitive therapy. Diet, physical activity, and stress reduction may affect tumor promotion and disease progression.A randomized trial of an intensive diet, physical activity, and meditation intervention was conducted in men with rising post-treatment PSA after definitive treatment for PrCA. Intention-to-treat methods were used to compare usual care to the intervention in 47 men with complete data. Signal detection methods were used to identify dietary factors associated with PSA change.The intervention and control groups did not differ statistically on any demographic or disease-related factor. Although the intervention group experienced decreases of 39% in intakes of saturated fatty acid (SFA as percent of total calories) (p0.0001) and 12% in total energy intake (218 kcal/day, p0.05)], no difference in PSA change was observed by intervention status. Signal detection methods indicated that in men increasing their consumption of fruit, 56% experienced no rise in PSA (vs. 29% in men who did not increase their fruit intake). Among men who increased fruit and fiber intakes, PSA increased in 83% of participants who also increased saturated fatty acid intake (vs. 44% in participants who decreased or maintained saturated fatty acid intake).Results are discussed in the context of conventional treatment strategies that were more aggressive when this study was being conducted in the mid-2000s. Positive health changes in a number of lifestyle parameters were observed with the intervention, and both increased fruit and reduced saturated fat intakes were associated with maintaining PSA levels in men with biochemically recurrent disease.
- Subjects :
- Male
Cancer Research
medicine.medical_specialty
Epidemiology
Saturated fat
Context (language use)
Article
Metabolic equivalent
law.invention
Prostate cancer
Randomized controlled trial
law
Prostate
Internal medicine
Humans
Medicine
Exercise
business.industry
Prostatic Neoplasms
Prostate-Specific Antigen
medicine.disease
Diet
Prostate-specific antigen
Meditation
medicine.anatomical_structure
Oncology
Saturated fatty acid
Physical therapy
Neoplasm Recurrence, Local
business
Stress, Psychological
Subjects
Details
- ISSN :
- 18777821
- Volume :
- 36
- Database :
- OpenAIRE
- Journal :
- Cancer Epidemiology
- Accession number :
- edsair.doi.dedup.....6eb646b7e0f50f4c30fcb1526bf8396a
- Full Text :
- https://doi.org/10.1016/j.canep.2011.09.008