» Articles » PMID: 31811951

Rhythmic Fluctuations in Levels of Liver Enzymes During Menstrual Cycles of Healthy Women and Effects of Body Weight

Overview
Specialty Gastroenterology
Date 2019 Dec 8
PMID 31811951
Citations 1
Authors
Affiliations
Soon will be listed here.
Abstract

Background & Aims: Female sex hormones affect several non-reproductive organs, but little is known about their effects on the liver during a normal menstrual cycle. We aimed to investigate the association between sex hormones and liver enzymes in healthy menstruating women.

Methods: We performed a post-hoc analysis of data from the BioCycle study, a longitudinal cohort study designed to determine the association of sex hormones with markers of oxidative stress during the menstrual cycle. We analyzed data collected from 259 menstruating women, over 1-2 menstrual cycles, who had as many as 16 separate office visits, timed by fertility monitors. Levels of liver enzymes, including alanine aminotransferase (ALT), aspartate aminotransferase, and alkaline phosphatase (ALKP), bilirubin, and lipids were measured by laboratory assays.

Results: We found a natural cyclic pattern for liver enzymes, with transaminases and ALKP peaking in the mid-follicular phase and reaching a trough in the late luteal phase; the peak to trough differences were 4.0 ± 4.9 U/L for ALT and 8.8 ± 4.0 U/L for ALKP. Levels of ALT were significantly and negatively associated with levels of progesterone on the preceding visit (P = 5x10), whereas level of ALKP was negatively associated with level of estrogen (P = .007) and progesterone (P = 1x10). Food and alcohol intake did not modify the association. The amplitude of ALT fluctuation was greater in African Americans and decreased with age. Fluctuations in levels of ALT were smaller in women with body mass indices >30 kg/m (P = .03). During menstrual fluctuation, 49% of participants had ALT values both above and below the normal cut-off value (19 U/L).

Conclusions: Levels of liver enzymes fluctuate during the normal menstrual cycle, possibly mediated by progesterone, and the fluctuation varies with age and body mass index. These findings indicate the importance of accounting for phase of menstrual cycle when interpreting liver enzyme measurements in menstruating women.

Citing Articles

Clinical and In Vitro Safety of AO 1167B: A Double-Blind, Placebo-Controlled Trial.

Garcia G, Soto J, Diaz A, Barreto J, Soto C, Perez A Microorganisms. 2025; 12(12.

PMID: 39770785 PMC: 11677179. DOI: 10.3390/microorganisms12122584.


Investigation of the protective effect of against the damage caused by Bisphenol A in the liver tissue of rats.

Aydin M, Kose E, Karaca E, Tanbek K, Sandal S Heliyon. 2024; 10(20):e39386.

PMID: 39492916 PMC: 11530894. DOI: 10.1016/j.heliyon.2024.e39386.

References
1.
Lipson S, Ellison P . Normative study of age variation in salivary progesterone profiles. J Biosoc Sci. 1992; 24(2):233-44. DOI: 10.1017/s0021932000019751. View

2.
Zlotnik A, Gruenbaum B, Mohar B, Kuts R, Gruenbaum S, Ohayon S . The effects of estrogen and progesterone on blood glutamate levels: evidence from changes of blood glutamate levels during the menstrual cycle in women. Biol Reprod. 2010; 84(3):581-6. DOI: 10.1095/biolreprod.110.088120. View

3.
Mumford S, Steiner A, Pollack A, Perkins N, Filiberto A, Albert P . The utility of menstrual cycle length as an indicator of cumulative hormonal exposure. J Clin Endocrinol Metab. 2012; 97(10):E1871-9. PMC: 3674299. DOI: 10.1210/jc.2012-1350. View

4.
Kelley C, Brown A, Diehl A, Setji T . Review of nonalcoholic fatty liver disease in women with polycystic ovary syndrome. World J Gastroenterol. 2014; 20(39):14172-84. PMC: 4202347. DOI: 10.3748/wjg.v20.i39.14172. View

5.
Yeung E, Zhang C, Albert P, Mumford S, Ye A, Perkins N . Adiposity and sex hormones across the menstrual cycle: the BioCycle Study. Int J Obes (Lond). 2012; 37(2):237-43. PMC: 3361001. DOI: 10.1038/ijo.2012.9. View