Stone to Silicon

Health & biology · September 2026

Pig kidney bridges to transplant

A gene-edited pig kidney kept a patient off dialysis for 271 days.

Mass General Brigham reported in The Lancet that Tim Andrews lived dialysis-free for a record 271 days on a gene-edited pig kidney, then became the first person to move from a pig organ to a human donor kidney.

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What it built on 1

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The dashed line marks when it first worked.

Life expectancy in the UK since 1543 Latest: 81.3 years (2023) Source: Our World in Data