Diet and Survival After Prostate Cancer Diagnosis

Berkow, Susan E.; Barnard, Neal D.; Saxe, Gordon A.; Ankerberg-Nobis, Trulie

doi:10.1111/j.1753-4887.2007.tb00317.x

Cited by 41 publications

(30 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Additional mechanisms for the association reported here may include physiological responses to treatment [32], care-seeking behaviors, or treatment adherence. Finally, changes in lifestyle behaviors may also prove to contribute to better outcomes among those who believe that cancer is curable [11,[63][64][65][66][67][68][69][70]. For instance, Rabin and Pinto [68] found that breast cancer patients who believed that lifestyle behaviors could help prevent the onset or recurrence of cancer were more likely to have adopted a healthier lifestyle 6 months post-treatment.…”

Section: Discussionmentioning

confidence: 98%

The prognostic role of cancer-specific beliefs among prostate cancer survivors

Soler-Vilá

Dubrow

Franco

et al. 2010

Cancer Causes Control

View full text Add to dashboard Cite

Prostate cancer patients who reported not believing that most cancers are curable experienced poorer survival after adjusting for a wide array of prognostic factors and potential confounders. Future research to identify underlying behavioral (medical protocol adherence, lifestyle) and physiological (immune and endocrine regulation) mechanisms of this association would translate into improved intervention strategies for cancer survivors.

show abstract

Section: Discussionmentioning

confidence: 98%

The prognostic role of cancer-specific beliefs among prostate cancer survivors

Soler-Vilá

Dubrow

Franco

et al. 2010

Cancer Causes Control

View full text Add to dashboard Cite

show abstract

“…The literature on the relationship between dietary and supplemental sources of carotenoids and tocopherols and PSA levels among men with biochemical PrCA relapse is sparse (reviewed in [19, 28, 29]). The majority of the available data emanates from intervention trials examining the potential benefits of lycopene.…”

Section: Discussionmentioning

confidence: 99%

“…Because these trials involved different combinations of diet, stress reduction and physical activity, it is difficult to determine to what degree these factors were responsible for the beneficial effects reported. Others studies have investigated the effects of dietary modifications alone among men with biochemical recurrence (reviewed in [19, 28, 29]); however, the diet used in these studies had multiple components, such as higher levels of fruits, vegetables, legumes, and whole grain intake while decreasing meat and dairy intake, which makes it difficult to examine the independent effects of specific food components. Additional work is needed to evaluate the role of specific foods and nutrients.…”

Section: Introductionmentioning

confidence: 99%

Plasma carotenoids and tocopherols in relation to prostate-specific antigen (PSA) levels among men with biochemical recurrence of prostate cancer

Antwi

Steck²,

Zhang

et al. 2015

Cancer Epidemiology

View full text Add to dashboard Cite

Background Although men presenting with clinically localized prostate cancer (PrCA) often are treated with radical prostatectomy or radiation therapy with curative intent, about 25–40% develop biochemically recurrent PrCA within 5 years of treatment, which has no known cure. Studies suggest that carotenoid and tocopherol intake may be associated with PrCA risk and progression. We examined plasma carotenoid and tocopherol levels in relation to prostate-specific antigen (PSA) levels among men with PSA-defined biochemical recurrence of PrCA. Methods Data analyzed were from a 6-month diet, physical activity and stress-reduction intervention trial conducted in South Carolina among biochemically recurrent PrCA patients (n=39). Plasma carotenoids and tocopherol levels were measured using high-performance liquid chromatography (HPLC). Linear regression was used to estimate least-square means comparing PSA levels of men with high versus low carotenoid/tocopherol levels, adjusting for covariates. Results After adjusting for baseline PSA level, plasma cis-lutein/zeaxanthin level at 3 months was related inversely to PSA level at 3 months (P=0.0008), while α-tocopherol (P=0.01), β-cryptoxanthin (P=0.01), and all-trans-lycopene (P=0.004) levels at 3 months were related inversely to PSA levels at 6-months. Percent increase in α-tocopherol and trans-β-carotene levels from baseline to month 3 were associated with lower PSA levels at 3 and 6 months. Percent increase in β−cryptoxanthin, cislutein/zeaxanthin and all-trans-lycopene were associated with lower PSA levels at 6 months only. Conclusions Certain plasma carotenoids and tocopherols were related inversely to PSA levels at various timepoints, suggesting that greater intake of foods containing these micronutrients might be beneficial to men with PSA-defined PrCA recurrence.

show abstract

“…Vitamin E was protective in smokers, as were β-carotene supplements in men with low β-carotene intake, in the PLCO trial (10). Currently, several suspected risk factors, such as BMI, soy, fish oil, meat intake, calcium, lycopene, vitamins C and E, and selenium, are also being studied in relation to prostate cancer progression and survival (11–13). However, such research investigating carotenoids and tocopherols is scant.…”

mentioning

confidence: 99%

Associations between α-Tocopherol, β-Carotene, and Retinol and Prostate Cancer Survival

Watters¹,

Gail

Weinstein³

et al. 2009

Cancer Research

View full text Add to dashboard Cite

Previous studies suggest that carotenoids and tocopherols (vitamin E compounds) may be inversely associated with prostate cancer risk, yet little is known about how they affect prostate cancer progression and survival. We investigated whether serum A-tocopherol, B-carotene, and retinol concentrations, or the A-tocopherol and B-carotene trial supplementation, affected survival of men diagnosed with prostate cancer during the A-Tocopherol, B-Carotene Cancer Prevention Study, a randomized, double-blind, placebocontrolled primary prevention trial testing the effects of B-carotene and A-tocopherol supplements on cancer incidence in adult male smokers in southwestern Finland (n = 29,133). Prostate cancer survival was examined using the Kaplan-Meier method with deaths from other causes treated as censoring, and using Cox proportional hazards regression models with hazard ratios (HR) and 95% confidence intervals (CI) adjusted for family history of prostate cancer, age at randomization, benign prostatic hyperplasia, age and stage at diagnosis, height, body mass index, and serum cholesterol. As of April 2005, 1,891 men were diagnosed with prostate cancer and 395 died of their disease. Higher serum A-tocopherol at baseline was associated with improved prostate cancer survival (HR, 0.67; 95% CI, 0.45-1.00), especially among cases who had received the A-tocopherol intervention of the trial and who were in the highest quintile of A-tocopherol at baseline (HR, 0.51; 95% CI, or at the 3-year follow-up measurement (HR, 0.26; 95% CI,. Serum B-carotene, serum retinol, and supplemental B-carotene had no apparent effects on survival. These findings suggest that higher A-tocopherol (and not B-carotene or retinol) status increases overall prostate cancer survival. Further investigations, possibly including randomized studies, are needed to confirm this observation. [Cancer Res 2009;69(9):3833-41]

show abstract

Diet and Survival After Prostate Cancer Diagnosis

Cited by 41 publications

References 68 publications

The prognostic role of cancer-specific beliefs among prostate cancer survivors

The prognostic role of cancer-specific beliefs among prostate cancer survivors

Plasma carotenoids and tocopherols in relation to prostate-specific antigen (PSA) levels among men with biochemical recurrence of prostate cancer

Associations between α-Tocopherol, β-Carotene, and Retinol and Prostate Cancer Survival

Contact Info

Product

Resources

About