Cited by 57Muscle metabolism and nutritionMuscle Physiology and DisordersNutrition and Health in Aging

Effect of administration of oral contraceptives on the synthesis and breakdown of myofibrillar proteins in young women

Hansen, M., Langberg, H., Holm, L., Miller, B. F., Petersen, S. G., Doessing, S., Skovgaard, D., Trappe, T. +1 more·2011·Scandinavian Journal of Medicine & Science in Sports

Abstract

Oral contraceptive (OC) treatment has an inhibiting effect on protein synthesis in tendon and muscle connective tissue. We aimed to investigate whether OC influence myofibrillar protein turnover in young women. OC‐users (24±2 years; Lindynette®n=7, Cilest®n=4) and non‐OC‐users (controls, 24±4 years n=12) performed one‐legged kicking exercise. The next day, the myofibrillar protein fractional synthesis rate (FSR) was measured using stable isotopic tracers (13 C‐proline) while the subjects were fed standardized nutrient drinks. Simultaneously, a marker for myofibrillar protein breakdown, 3‐methyl‐histidine (3‐MH), was measured in the interstitial fluid of the vastus lateralis. Measurements were performed in both legs. In general, myofibrillar protein FSR was lower in OC‐users (two‐way analysis of variance, P<0.05), although the difference seemed to depend on the OC type. Interstitial 3‐MH in the skeletal muscle was not different between groups and did not vary by OC type. Exercise did not change myofibrillar protein FSR or 3‐MH concentrations. Serum androstenedione and bioavailability of testosterone were lower in OC‐users. In conclusion, the results indicate that the use of OC has an inhibiting effect on myofibrillar protein synthesis and the magnitude of the effect may depend on the type of OC. In contrast, there was no effect of OC on myofibrillar protein breakdown in the fed state.

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Crossref · 10.1111/j.1600-0838.2009.01002.x

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Authors
Hansen, M., Langberg, H., Holm, L., Miller, B. F., Petersen, S. G., Doessing, S., Skovgaard, D., Trappe, T., & Kjaer, M.
Affiliations
  • University of Copenhagen (DK)
  • Colorado State University (US)
  • Ball State University (US)
Corresponding author
Hansen, M.
Venue
Scandinavian Journal of Medicine & Science in Sports
Publisher
Wiley
Published
2011-01-11
Volume
21
Issue
1
Pages
62-72
ISSN
  • 0905-7188 (ISSN-L)
  • 1600-0838
OpenAlex
W1552988067
Cited by
57
References
44
Citations by year
2026: 5 · 2025: 6 · 2024: 7 · 2023: 5 · 2022: 3 · 2021: 2 · 2020: 4 · 2019: 5 · 2018: 1 · 2017: 2 · 2016: 4 · 2015: 4 · 2014: 2 · 2013: 4 · 2012: 2
FWCI
0.44
Type
journal article
Language
en
Open access
closed
Locations
  • Scandinavian Journal of Medicine and Science in Sports (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
  • University of Birmingham Research Portal (University of Birmingham) (submittedVersion)
Funders
  • Aarhus Universitetshospital
  • Gigtforeningen
  • Eva og Henry Frænkels Mindefond
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
Keywords
oral contraceptives, myofibrillar protein synthesis, protein turnover, protein degradation, 3-methylhistidine, fractional synthesis rate, skeletal muscle, androstenedione, young women, physical activity
MeSH terms
Analysis of Variance, Energy Intake, Contraceptives, Oral, Exercise Test, Female, Humans, Leg, Methylhistidines, Muscle Proteins, Myofibrils, Proline, Muscle, Skeletal, Young Adult

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