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MRNAs and miRNAs for Women's Healthy Eating and Living (WHEL) Study

ABSTRACT: mRNAs and miRNAs for Women's Healthy Eating and Living (WHEL) Study

PROVIDER: PRJNA615389 | ENA |

REPOSITORIES: ENA

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mRNAs and miRNAs for Women's Healthy Eating and Living (WHEL) Study

Project description:The nCounter miRGE™ assay was used to quantify transcript expression with a custom codeset containing probes for 123 endogenous mRNAs and 25 miRNAs to assess the association of genomic markers with long-term breast cancer survival. A total of 1,253 FFPE primary breast cancer samples with high-quality reads were obtained.

2020-03-27 | GSE147126 | GEO

Vitamin D and breast cancer recurrence in the Women's Healthy Eating and Living (WHEL) Study.

Project description:BackgroundThere is a paucity of research evaluating the relation between vitamin D and recurrence of breast cancer after treatment.ObjectiveThis study was designed to evaluate the associations between circulating concentrations of 25-hydroxyvitamin D [25(OH)D] and dietary, supplemental, and total intake of vitamin D and recurrent or new breast cancer events within the Women's Healthy Eating and Living (WHEL) Study.DesignA prospective cohort study design (n = 3085) was used to evaluate the relation between dietary, supplemental, and total vitamin D intake and recurrent breast cancer, and a nested case-control study with 512 matched pairs was used for analysis of the association between 25(OH)D and breast cancer recurrence.ResultsNo relation between 25(OH)D and breast cancer recurrence was observed. Compared with women with serum concentrations of 25(OH)D ≥ 30 ng/mL, adjusted odds ratios (95% CI) for breast cancer recurrence were 1.14 (0.57, 2.31) for those with concentrations < 10 ng/mL, 1.00 (0.68-1.48) for concentrations ≥ 10 and < 20 ng/mL, and 1.05 (0.76, 1.47) for concentrations ≥ 20 and < 30 ng/mL. No significant associations were observed when analyses were stratified by pre- and postmenopausal status or for local, regional, or distant recurrence or death. Vitamin D intake was not related to breast cancer recurrence overall, although for premenopausal women there was a significant inverse association between dietary vitamin D intake and recurrence (P for trend = 0.02).ConclusionThese results do not provide support for a relation between concentrations of 25(OH)D after treatment and the recurrence of breast cancer. This trial is registered at clinicaltrials.gov for the WHEL Study as NCT00003787.

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Dietary pattern influences breast cancer prognosis in women without hot flashes: the women's healthy eating and living trial.

Project description:To determine whether a low-fat diet high in vegetables, fruit, and fiber differentially affects prognosis in breast cancer survivors with hot flashes (HF) or without HF after treatment.A secondary analysis was conducted on 2,967 breast cancer survivors, age 18 to 70 years, who were randomly assigned between 1995 and 2000 in a multicenter, controlled trial of a dietary intervention to prevent additional breast cancer events and observed through June 1, 2006. We compared the dietary intervention group with a group who received five-a-day dietary guidelines.Independent of HF status, a substantial between-group difference among those who did and did not receive dietary guidelines was achieved and maintained at 4 years in intake of vegetable/fruit servings per day (54% higher; 10 v 6.5 servings/d, respectively), fiber (31% higher; 25.5 v 19.4 g/d, respectively), and percent energy from fat (14% lower; 26.9% v 31.3%, respectively). Adjusting for tumor characteristics and antiestrogen treatment, HF-negative women assigned to the intervention had 31% fewer events than HF-negative women assigned to the comparison group (hazard ratio [HR] = 0.69; 95% CI, 0.51 to 0.93; P = .02). The intervention did not affect prognosis in the women with baseline HFs. Furthermore, compared with HF-negative women assigned to the comparison group, HF-positive women had significantly fewer events in both the intervention (HR = 0.77; 95% CI, 0.59 to 1.00; P = .05) and comparison groups (HR = 0.65; 95% CI, 0.49 to 0.85; P = .002).A diet with higher vegetable, fruit, and fiber and lower fat intakes than the five-a-day diet may reduce risk of additional events in HF-negative breast cancer survivors. This suggestive finding needs confirmation in a trial in which it is the primary hypothesis.

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