Evidence map›Paper›PMID 35545400›Full record

ArticleBMJ open2022

Uncovering the effects of gender affirming hormone therapy on skeletal muscle and epigenetics: protocol for a prospective matched cohort study in transgender individuals (the GAME study).

Patrice R Jones, Sarah Voisin, Brendan J Nolan, Shanie Landen, Macsue Jacques, Beau Newell, Sav Zwickl, Teddy Cook, Alex Wong, Ariel Ginger and 7 more

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.1field-weighted citation impact, top 24% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 10 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. The Impact of Gender-Affirming Hormone Therapy on Physical Performance.The Journal of clinical endocrinology and metabolism · 2024
    Review
  5. Article
  6. Implications of gender-affirming endocrine care for sports participation.Therapeutic advances in endocrinology and metabolism · 2023
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors at 3 institutions in 1 country.

Patrice R JonesInstitute for Health and Sport, Victoria University, Footscray, Victoria, Australia.ORCID 0000-0002-4948-1445
Sarah VoisinInstitute for Health and Sport, Victoria University, Footscray, Victoria, Australia.
Brendan J NolanTrans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, Victoria, Australia.ORCID 0000-0001-8836-165X
Shanie LandenInstitute for Health and Sport, Victoria University, Footscray, Victoria, Australia.
Macsue JacquesInstitute for Health and Sport, Victoria University, Footscray, Victoria, Australia.
Beau NewellPride in Sport, ACON Health, Surry Hills, New South Wales, Australia.
Sav ZwicklTrans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, Victoria, Australia.
Teddy CookPride in Sport, ACON Health, Surry Hills, New South Wales, Australia.
Alex WongTrans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, Victoria, Australia.ORCID 0000-0002-3666-5261
Ariel GingerTrans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, Victoria, Australia.
Andrew PalmerInstitute for Health and Sport, Victoria University, Footscray, Victoria, Australia.
Andrew GarnhamInstitute for Health and Sport, Victoria University, Footscray, Victoria, Australia.
Javier Alvarez-RomeroInstitute for Health and Sport, Victoria University, Footscray, Victoria, Australia.
Namitha MohandasInstitute for Health and Sport, Victoria University, Footscray, Victoria, Australia.
Kirsten SealeInstitute for Health and Sport, Victoria University, Footscray, Victoria, Australia.
Ada Cheung *Trans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, Victoria, Australia.
Nir Eynon *Institute for Health and Sport, Victoria University, Footscray, Victoria, Australia Nir.Eynon@vu.edu.au.
Victoria University · AUAustin Health · AUThe University of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionGender affirming hormone therapy (GAHT) is increasingly used by transgender individuals and leads to shifts in sex hormone levels. Skeletal muscle is highly responsive to hormone activity, with limited data on the effects of GAHT on different human tissues. Here, we present the protocol for the GAME study (the effects of METHODS AND ANALYSIS: This study is a prospective age-matched cohort study in transgender adults commencing GAHT (n=80) and age-matched individuals not commencing GAHT (n=80), conducted at Austin Health and Victoria University in Victoria, Australia. Assessments will take place prior to beginning GAHT and 6 and 12 months into therapies in adults commencing GAHT. Age-matched individuals will be assessed at the same time points. Assessments will be divided over three examination days, involving (1) aerobic fitness tests, (2) muscle strength assessments and (3) collection of blood and muscle samples, as well as body composition measurements. Standardised diets, fitness watches and questionnaires will be used to control for key confounders in analyses. Primary outcomes are changes in aerobic fitness and muscle strength, as well as changes in skeletal muscle DNA methylation and gene expression profiles. Secondary outcomes include changes in skeletal muscle characteristics, proteomics, body composition and blood markers. Linear mixed models will be used to assess changes in outcomes, while accounting for repeated measures within participants and adjusting for known confounders. ETHICS AND DISSEMINATION: The Austin Health Human Research Ethics Committee (HREC) and Victoria University HREC granted approval for this study (HREC/77146/Austin-2021). Findings from this project will be published in open-access, peer-reviewed journals and presented to scientific and public audiences. TRIAL REGISTRATION NUMBER: ACTRN12621001415897; Pre-results.

Indexed as

Transgender PersonsAdultCohort StudiesFemaleHormonesHumansMaleMuscle, SkeletalProspective StudiesVictoriaHormonesCLINICAL PHYSIOLOGYGENETICSMOLECULAR BIOLOGYSex steroids & HRTSPORTS MEDICINE

Identifiers

PMID35545400
PMCPMC9096568
OpenAlexW4280536714

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.