Background: Interest is growing in the dynamic role of gut microbiome disturbances in human health and disease. No direct evidence is yet available to link gut microbiome dysbiosis to endometrial cancer. This review aims to understand any association between microbiome dysbiosis and important risk factors of endometrial cancer, high estrogen levels, postmenopause and obesity. Methods: A systematic search was performed with PubMed as primary database. Three separate searches were performed to identify all relevant studies. Results: Fifteen studies were identified as highly relevant and included in the review. Eight articles focused on the relationship with obesity and eight studies focused on the menopausal change or estrogen levels. Due to the heterogeneity in patient populations and outcome measures, no meta-analysis could be performed. Both the menopausal change and obesity were noted to enhance dysbiosis by reducing microbiome diversity and increasing the Firmicutes to Bacteroidetes ratio. Both also incurred estrobolome changes, leading to increased systemic estrogen levels, especially after menopause. Furthermore, microbiome dysbiosis was reported to be related to systemic inflammation through toll-like receptor signaling deficiencies and overexpression of pro-inflammatory cytokines. Conclusions: This review highlights that the female gut microbiome is intrinsically linked to estrogen levels, menopausal state and systemic inflammation, which indicates gut microbiome dysbiosis as a potential hallmark for risk stratification for endometrial cancer. Studies are needed to further define the role the gut microbiome plays in women at risk for endometrial cancer.
9 March 2015 in BJOG: An International Journal of Obstetrics & Gynaecology
Objective: To compare nonpregnant blood pressure and circulating metabolic factors between formerly pre‐eclamptic women who did and did not deteriorate to eclampsia.Design: Retrospective observational cohort study.Setting: Tertiary referral centre.Population: Formerly pre‐eclamptic women with (n = 88) and without (n = 698) superimposed eclampsia.Methods: Women who experienced pre‐eclampsia with or without superimposed eclampsia during their pregnancy or puerperium were tested for possible underlying cardiovascular risk factors at least 6 months postpartum. We measured blood pressure and determined cardiovascular and metabolic risk markers in a fasting blood sample. Groups were compared using Mann–Whitney U test, Spearman's Rho test or Fisher's Exact test (odds ratios).Main outcome measures: Differences in postpartum blood pressures and features of the metabolic syndrome between formerly pre‐eclamptic and formerly eclamptic women.Results: Formerly pre‐eclamptic women who developed eclampsia differed from their counterparts without eclampsia by a lower blood pressure (P < 0.01) with blood pressure correlating inversely with the likelihood of having experienced eclampsia (P < 0.001). In addition, formerly eclamptic women had higher circulating C‐reactive protein levels than formerly pre‐eclamptic women (P < 0.05). All other circulating metabolic factors were comparable. Finally, 40% of all eclamptic cases occurred in the puerperium.Conclusions: Formerly pre‐eclamptic women with superimposed eclampsia have lower nonpregnant blood pressure compared with their counterparts without neurological sequelae with blood pressure negatively correlated to the occurrence of eclampsia. As about 40% of all eclamptic cases occur postpartum, routine blood pressure monitoring postpartum should be intensified.Tweetable Nonpregnant blood pressure of formerly pre‐eclamptic women is negatively correlated to the occurrence of eclampsia.