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John Carlos Baez
John Carlos Baez
@johncarlosbaez@mathstodon.xyz  ·  activity timestamp 4 days ago
Text from this article: www.nature.com/articles/d41586-025-04102-4 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 boys1. 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 earlier2. This finding overturned the dogma that children inherit genes from their parents and never the other way around — these transferred fetal cells move through the family tree, travelling ‘backwards in time’ from children to their mothers. Bianchi and others would go on to show that these cells have remarkable regenerative properties — promoting wound healing in mothers by transforming into blood vessels or skin cells.
Text from this article: www.nature.com/articles/d41586-025-04102-4 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 boys1. 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 earlier2. This finding overturned the dogma that children inherit genes from their parents and never the other way around — these transferred fetal cells move through the family tree, travelling ‘backwards in time’ from children to their mothers. Bianchi and others would go on to show that these cells have remarkable regenerative properties — promoting wound healing in mothers by transforming into blood vessels or skin cells.
Text from this article: www.nature.com/articles/d41586-025-04102-4 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 boys1. 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 earlier2. This finding overturned the dogma that children inherit genes from their parents and never the other way around — these transferred fetal cells move through the family tree, travelling ‘backwards in time’ from children to their mothers. Bianchi and others would go on to show that these cells have remarkable regenerative properties — promoting wound healing in mothers by transforming into blood vessels or skin cells.
arvind
arvind
@dialecticalmusings@app.wafrn.net  ·  activity timestamp 3 days ago