Air of Silence

High school photography teacher, Chris Somers, speaks with Phoebe Hart about their experience of XXY of being a child in high school, developing breasts and of the relentless teasing from peers that would eventually lead to Chris undergoing a double…

Association of Testosterone Therapy With Risk of Venous Thromboembolism Among Men With and Without Hypogonadism

Is clinical prescription of testosterone therapy associated with short-term risk of venous thromboembolism in men with and without hypogonadism? In this case-crossover study comparing 6-month testosterone use for 39,622 men who had a venous thromboembolism with testosterone use 6 to…

New DNA ‘clock’ could help measure development in young children

Scientists have developed a molecular "clock" that could reshape how paediatricians measure and monitor childhood growth and potentially allow for an earlier diagnosis of life-altering development disorders. The research, published this week in PNAS, (Full Study) describes how the addition of…

Sex-by-Sequencing Reveals the First Two Species of Marine Mammals with XXY Chromosomes

Genetic sex determination assays assume that individuals are either XY males or XX females, which can be false at the level of phenotype or genotype. At the phenotypic level, intersex individuals with gonads, sex hormones, or genitalia that do not conform to the definitions of male or female sex characteristics have been documented across a growing number of taxa, including fish, amphibians, reptiles, and mammals