Laurent Sifre, cofounder of H Company, joins Microsoft
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Laurent Sifre
Paris, France / USA
September 2026
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Record-breaking pig kidney transplant lasts 271 days in US patient
A genetically modified pig kidney functioned in a human patient for 271 days, the longest duration on record. The procedure at Mass General Brigham highlights the potential of xenotransplantation as a bridge to human organ donation. The patient, Tim Andrews, eventually received a human kidney transplant after the pig organ failed.