How the Nazis Stymied Alzheimer’s Disease Research

June 27, 2026 - 20:15

For decades, the history of Alzheimer's disease research has centered on one name: Alois Alzheimer. But a growing body of historical evidence suggests that a crucial collaborator, Dr. Oskar Fischer, was systematically written out of the story. Fischer, a Jewish scientist working in Prague, made foundational discoveries about the disease's pathology, but his contributions were buried by the rise of Nazi Germany.

In 1907, Fischer published a landmark paper describing the plaques and tangles in the brain that are hallmarks of Alzheimer's. His work was so detailed and accurate that some modern researchers argue he should share credit for the initial discovery. However, as the Nazis annexed Czechoslovakia, Fischer's Jewish identity made him a target. He was stripped of his university position and his research was dismissed as "Jewish science." The regime actively promoted Aryan scientists, often erasing Jewish names from medical history.

The tragedy deepened in 1942. Fischer was deported to the Theresienstadt concentration camp and later to Treblinka, where he was murdered. His name vanished from textbooks, and Alzheimer's disease became almost exclusively associated with his German colleague. It was only in the last two decades that historians and neurologists began to rediscover Fischer's work, publishing papers that restore his legacy. Today, some medical journals are calling for a formal recognition of Fischer's role, arguing that science must confront the political and racial biases that have shaped its past. His story stands as a stark reminder of how hate can delay medical progress for generations.