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Alexandre Neves: Discovering Y-Chromosome Cells in Women’s Health
Alexandre Neves/LinkedIn
Jan 5, 2026, 15:33

Alexandre Neves: Discovering Y-Chromosome Cells in Women’s Health

Alexandre Neves, Senior Scientific Recruiter, Science and Clinical at Kelly Science, Engineering, Technology at Telecom, shared a post on LinkedIn:

“‘Then, in 1969, a team studying immunity in pregnant people detected white blood cells that contained the Y chromosome in the blood of individuals who would eventually give birth to boys. For more than two decades, it was presumed that these microchimeric cells were a temporary feature of pregnancy. It wasn’t until 1993 that geneticist Diana Bianchi found cells with Y chromosomes in women who had given birth to sons between one and 27 years earlier.’

‘At around the same time that Bianchi was making her groundbreaking discovery, rheumatologist Lee Nelson also found Y-chromosome-containing cells in people who had previously given birth to sons. Nelson was studying autoimmune diseases, which disproportionately affect middle-aged women, and at the time were thought to be caused by hormone imbalances.'”

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