Open Access
CC BY-NC-ND 4.0 · Exp Clin Endocrinol Diabetes 2024; 132(05): 267-278
DOI: 10.1055/a-2273-5602
Review

Impact of Physiological Fluctuations of Sex Hormones During the Menstrual Cycle on Glucose Metabolism and the Gut Microbiota

Alina Schieren
1   University of Bonn, Institute of Nutrition and Food Sciences, Nutrition and Microbiota, Bonn, Germany
,
Sandra Koch
1   University of Bonn, Institute of Nutrition and Food Sciences, Nutrition and Microbiota, Bonn, Germany
,
Tal Pecht
2   University of Bonn, Life & Medical Sciences (LIMES) Institute, Department for Genomics and Immunoregulation, Bonn, Germany
3   German Center for Neurodegenerative Diseases (DZNE), Systems Medicine, Bonn, Germany
,
Marie-Christine Simon
1   University of Bonn, Institute of Nutrition and Food Sciences, Nutrition and Microbiota, Bonn, Germany
› Author Affiliations

Funding Information German Federal Ministry of Education and Research — 01EA1707 ImmunoSensation — German Diabetes Association — AS and MCS are supported by funding from the German Federal Ministry of Education and Research (Bundesministerium für Bildung und Forschung, BMBF), grant number: 01EA1707. MCS received funding from ImmunoSensation and the German Diabetes Association.
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Abstract

Diabetes mellitus is one of the most prevalent chronic diseases. Previous studies have shown differences in glucose metabolism between males and females. Moreover, difficulties in medication adherence have been reported in females with type 2 diabetes. These observations are believed to be caused by fluctuations in sex hormone concentrations during the menstrual cycle. Furthermore, gut microbiota is linked to female host metabolism and sex hormone production. Understanding the interactions between fluctuating hormone concentrations during the menstrual cycle, gut microbiota, and glucose metabolism in humans is significant because of the increasing prevalence of diabetes and the consequent need to expand preventive efforts. A literature search was performed to determine and summarize the existing evidence, deduce future research needs to maintain female health, and investigate the relationship between the physiological menstrual cycle and glucose metabolism. Studies from 1967 to 2020 have already examined the relationship between variations during the menstrual cycle and glucose metabolism in healthy female subjects using an oral-glucose tolerance test or intravenous glucose tolerance test. However, the overall number of studies is rather small and the results are contradictory, as some studies detected differences in glucose concentrations depending on the different cycle phases, whereas others did not. Some studies reported lower glucose levels in the follicular phase than in the luteal phase, whereas another study detected the opposite. Data on gut microbiota in relation to the menstrual cycle are limited. Conflicting results exist when examining the effect of hormonal contraceptives on the gut microbiota and changes in the course of the menstrual cycle. The results indicate that the menstrual cycle, especially fluctuating sex hormones, might impact the gut microbiota composition.

The menstrual cycle may affect the gut microbiota composition and glucose metabolism. These results indicate that glucose tolerance may be the greatest in the follicular phase; however, further well-conducted studies are needed to support this assumption.

Equal contribution: Alina Schieren, Sandra Koch




Publication History

Received: 15 August 2023
Received: 10 January 2024

Accepted: 18 January 2024

Accepted Manuscript online:
21 February 2024

Article published online:
10 April 2024

© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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