Blood markers showed mixed changes after testosterone initiation
A small cohort of transgender men showed trends in platelet activation and inflammation, but the abstract does not establish a change in cardiovascular event risk.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Among transgender men starting testosterone, some platelet activation markers and the overall group of inflammation markers tended to increase over follow-up. Other platelet measures stayed stable. This abstract-based summary concerns blood markers, not observed cardiovascular events, and the cohort design cannot establish that testosterone caused the changes or increased clinical risk.
The study included a small cohort, and the abstract gives neither numerical effect estimates nor statistical uncertainty for the reported trends. Without those details, their magnitude and reliability cannot be judged.
What researchers found
Inflammation markers
Relative to baseline after testosterone initiation, the tendency was most pronounced at 52 weeks. Effect sizes and significance tests are not reported.
What researchers followed
Repeated blood samples allowed researchers to track platelet activation and inflammation after treatment began. The analysis compared later measurements with baseline, addressing changes within participants rather than differences between randomized treatment groups.
The pattern was not uniform
Some platelet markers tended to rise initially, dip at the intermediate assessment and rise again at the final assessment. Closure time and immature platelet fraction remained stable, so the abstract describes a mixed biological pattern.
The original publication
The effect of testosterone on platelet activation and inflammation in transgender men.
van Zijverden LM, Schutte MH, Tebbens M et al.
Platelets · 2025
- PubMed ID
- 41058439
- Record checked
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