Reproductive endocrinology

Sex Steroids Regulate Liver Fat Content and Body Fat Distribution in Both Men and Women: A Study in Transgender Persons

J Clin Endocrinol MetabPublished Open-label intervention study

Authors' conclusion

Sex hormones regulate liver fat content and visceral fat in men and women.

Study context

Population
Transgender persons receiving hormone treatment, gender clinic in a hospital
Comparison
Gender-affirming hormone treatment, changes over time
  • Trans womenn = 8
Outcome
Liver fat content, visceral and abdominal subcutaneous fat volume (magnetic resonance spectrometry or imaging)
Follow-up
Baseline, 6, 8, 18 and 58 weeks in trans women; baseline, 6 and 12 weeks in trans men with anastrozole; 52 weeks in trans men without anastrozole
Methodological details1-year follow-up, trans men randomized (anastrozole vs no anastrozole)
  • 1-year follow-up
  • Trans men randomized (anastrozole vs no anastrozole)

Main finding

As reported in the abstract

Trans women: change in liver fat content, week 58 vs week 6

decreased by 1.55%

−2.99 to −0.12

Trans men without anastrozole: change in liver fat content after 52 weeks

increased by 0.83%

0.14 to 1.52

Trans men without anastrozole: change in visceral fat volume after 52 weeks

increased by 34%

16 to 51

Original publication

Sex Steroids Regulate Liver Fat Content and Body Fat Distribution in Both Men and Women: A Study in Transgender Persons. J Clin Endocrinol Metab. Published 18 July 2023. doi:10.1210/clinem/dgad409

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