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Plasma omega-3 polyunsaturated fatty acids and recurrence of endometrial cancer.

Abstract：

BACKGROUND:Omega-3 polyunsaturated fatty acids (PUFAs) were proposed to have potential effects against inflammation and cancer. However, results from epidemiology studies remain inconsistent. We aimed to explore the associations of plasma PUFAs with EC recurrence and all-cause mortality. METHOD:Women diagnosed with endometrial cancer (EC) between 2008 and 2013 and underwent surgery at Fudan University Shanghai Cancer Center of China were recruited. Survival status was followed up through September 2017. EC recurrence and total cause deaths were identified through medical record and telephone interview. In total, 202 patients with enough plasma samples at time of surgery were included. There were 195 patients who provided baseline plasma and survival information included in the current study. Plasma omega-3 PUFAs were measured by GC-FID. Cox Proportional Hazard model adjusted for potential cofounders was used to estimate HRs and 95% CIs. RESULTS:Median follow-up time for patients was 58 months after surgery. A total of 13 recurrences and 11 all-cause deaths, of which, 2 deaths from EC, were identified. Level of plasma EPA was higher in recurrent patients than total patients (0.78% vs 0.51%, P = 0.015). Higher plasma eicosapentaenoic acid (EPA) level trended to have positive association with EC recurrence (P-trend = 0.04), although comparing to the lowest tertile, the highest tertile of EPA level was not significantly associated with increased risk of EC recurrence (HRT3vsT1 = 6.02; 95%CI = 0.7-52.06). The association between total omega-3 PUFA and EC recurrence tended to be stronger among patients with deeper myometrial invasion (OR = 3.41; 95%CI = 1.06-10.95; P-interaction = 0.04). CONCLUSIONS:Higher plasma EPA level was significantly associated with EC recurrence. Further studies are warranted to confirm these findings. TRIAL REGISTRATION:ChiCTR1900025418; Retrospectively registered (26 August 2019); Chinses Clinical Trial Registry.

journal_name

BMC Cancer

journal_title

BMC cancer

authors

Li P,Shan B,Jia K,Hu F,Xiao Y,Zheng J,Gao YT,Wang H,Gao Y

doi

10.1186/s12885-020-07035-5

subject

Has Abstract

pub_date

2020-06-20 00:00:00

pages

576

issue

issn

1471-2407

pii

10.1186/s12885-020-07035-5

journal_volume

pub_type

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Plasma omega-3 polyunsaturated fatty acids and recurrence of endometrial cancer.