The human body does not treat testosterone and oestradiol as mere messengers of reproduction: these hormones travel throughout the organism and also communicate with the immune system. A group of rese...
For a long time, sex has been discussed as if it were a switch that can only be in two positions. The genetics of development, however, tells a more nuanced story. An international team coordinated by...
Could genetics have something to do with gender identity? For decades it was an almost taboo question, but science has been gathering clues for years. A recent study published in Scientific Reports (a...
A new review study published in 2026 in the journal Journal of Pediatric Urology (Elsevier) analyzes the relationship between congenital adrenal hyperplasia and gender dysphoria. Congenital adrenal hy...
An epigenome-wide association study (EWAS) published in Frontiers in Neuroscience by the group of Rosa Fernández, Eduardo Pásaro and Antonio Guillamón shows that people with gender incongruence presen...
A review published in Anales de Pediatría (Elsevier), with the participation of researcher Rosa Fernández among its authors, addresses a central question in the scientific and clinical debate: whether...
A network meta-analysis published in 2026 in the International Journal of Transgender Health has analyzed the length of the polymorphic CAG repeat of the androgen receptor (AR) gene in transgender and...
An experimental investigation published in the International Journal of Molecular Sciences by the group of Guillamón, Pásaro and Fernández, together with researchers from the University of A Coruña, h...
A case series published in 2026 in the Journal of Pediatric Endocrinology and Metabolism describes three cases with genetic confirmation of 17β-hydroxysteroid dehydrogenase type 3 deficiency (HSD17B3)...
Published in Frontiers in Endocrinology, this study by the Spanish group of Rosa Fernández and Eduardo Pásaro analyzes single nucleotide polymorphisms (SNPs) in the metabotropic glutamate receptors (m...
A new study published in 2026 in the journal Neuroscience has examined cortical structure and brain size in transfeminine individuals from Thailand, comparing them with cisgender men and women. It is ...
Genetic research on sexual orientation and gender identity generates disproportionate public interest given how little is still known. A study published in 2026 in Behavior Genetics has attempted to a...