A simple p-tau217 blood test is changing how we approach an Alzheimer’s diagnosis, bridging the gap between history and medicine.
In 1901, Dr. Alois Alzheimer first observed the disease that would bear his name, yet he could only confirm it after death. Today, science offers a different path. This short film dramatizes the journey from the early days of memory research to modern clinical advancements, illustrating how we now identify signs of Alzheimer’s disease long before the final stages.
Tau is a protein found within brain cells that changes form during the disease, and measuring p-tau217 in the blood can now indicate if amyloid plaques are present. While this test is designed to assist doctors in evaluating adults already experiencing memory symptoms, it is not a stand-alone diagnosis. Understanding these new tools can help patients and families navigate the clinical process with more clarity.
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CHAPTERS
0:00 A dramatization
0:07 Frankfurt, 1901: Auguste Deter
0:57 Munich, 1906: what Dr. Alzheimer saw
1:42 A century later: St. Louis
2:12 Inside the brain: amyloid and tau
2:40 The discovery in the blood
3:10 2026: the chance Auguste never had
4:29 “I saw it only at the end”
4:44 A life, remembered
5:24 Credits
THE SCIENCE
• Alzheimer A. Über eine eigenartige Erkrankung der Hirnrinde. Allg Z Psychiatr. 1907;64:146–148.
• Barthélemy NR, Horie K, Sato C, Bateman RJ. Blood plasma phosphorylated-tau isoforms track CNS change in Alzheimer’s disease. J Exp Med. 2020;217(11):e20200861. (Washington University School of Medicine, St. Louis)
• Palmqvist S, Janelidze S, Quiroz YT, et al. Discriminative accuracy of plasma phospho-tau217 for Alzheimer disease vs other neurodegenerative disorders. JAMA. 2020;324(8):772–781.
• Amyloid PET image (18F-flutemetamol): Mathoux G, Harput E, Peretti DE, Boccalini C, Garibotto V. Curr Opin Neurol. 2026;39:161–167. CC BY 4.0. Adapted.
ABOUT THIS FILM
This is a dramatization. Alois Alzheimer (1864–1915) never knew of these discoveries; his words here are imagined. The picture, performances and voices were created with generative AI tools. Scientific and regulatory facts are current as of October 2026.
This film is for education, not medical advice. If you have concerns about memory, talk to a doctor.
Written and Directed by Sanjay K Nigam
Produced by Southern Illinois Associates, LLC
Original score “The Three-Note Figure,” created with Suno
Made with Seedance 2.0 & 2.5, GPT Image, ChatGPT, ElevenLabs, Suno, Topaz Video AI, Blender, HyperFrames, Claude and Adobe Premiere Pro
© 2026 Southern Illinois Associates, LLC
#AlzheimersDisease #BloodTest #ptau217
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Thank you for watching. Auguste Deter waited 125 years for this chapter of her story.
What surprised you most: how little doctors could see in 1901, or that a blood test can now help find the signs of Alzheimer's disease? Tell us below. 👇
A reminder: this film is for education, not medical advice. If you're worried about your memory or a loved one's, please talk to a doctor.