Genetics: A Potential Factor in Transgender Identities
When it comes to understanding transgender identities, genetics is thought to play a significant role. Recent studies have shed light on a possible connection between identifying as transgender and a specific genetic component known as the androgen receptor allele.
Research has shown that this allele, which is a variant associated with feminization or under-masculinization in men, may contribute to the development of gender identity. In fact, a study found that transgender men who identified as female had a longer repeat length of this gene variant compared to those who identified as male. This suggests that androgen receptors may have a partial influence on male gender identity.
Differences in Brain Structures
Recent studies have shed light on the potential role of brain structure in influencing transgender identity. In 2014, a groundbreaking study discovered disparities in the white matter tracts of the brain when comparing cisgender individuals (those whose gender identity aligns with their assigned sex) to transgender men and women. These tracts, which are affected by hormonal changes during late prenatal and early postnatal development, were examined using MRI imaging techniques. The study revealed significant variations in the microstructure of white matter across nearly all tracts analyzed, highlighting the potential impact of brain structure on transgender identity.