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Tiny Protein Confirmed to Dismantle the Toxic Clumps Linked to Alzheimer’s Disease
By Andy CorbleySep 8, 2025
Scientists at St. Jude Children’s Research Hospital have demonstrated for the first time that the protein midkine plays a preventative role in Alzheimer’s disease.
Midkine is known to accumulate in Alzheimer’s patients, but rather than accelerate the disease, it seems to prevents a second, sticky protein from clumping together—the chief hallmark in this form of dementia.
Alzheimer’s disease drug research almost exclusively focuses on amyloid beta, referred to sometimes as tau protein—its molecular class. There are 6 kinds of tau proteins, and they’re necessary for maintaining the stability of microtubules in human nerve fibers, but when tau proteins—in particular amyloid beta—become hyperphosphorylated, they are observed to clump together around neurons and cause a kind of atrophy.
This is generally considered to be the pathology and driver of Alzheimer’s disease. The rot cause is manifold, with a patient’s genetic mutations, sex, toxin exposure, and sleep history all suspected to play a role.
Midkine, the other molecular character in this tale, is a small, multifunctional growth factor protein found abundantly during embryonic development but also involved in normal cell growth.
Its role in cell growth means that midkine is often overexpressed in cancer, making it a valuable biomarker. However, beyond some preliminary studies showing its increase in Alzheimer’s, midkine’s link to the neurodegenerative disease has been poorly understood.
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Tiny Protein Confirmed to Dismantle the Toxic Clumps Linked to Alzheimer’s Disease
Scientists at St. Jude Children’s Research Hospital have demonstrated for the first time that the protein midkine plays a preventative role in Alzheimer’s disease. Midkine is known to accumulate in Alzheimer’s patients, but rather than accelerate the disease, it seems to prevents a second...
