Published on: 25.07.2026 at 09:14 AM |
Editorial team boerse-global.de
Researchers have identified a previously unknown cell death process in the brain. This so-called karyoptosis could be the key to new therapies against Alzheimer’s and frontotemporal dementia (FTD).
Understanding Cell Death Mechanisms
A team from King’s College London and the UK Dementia Research Institute describes the mechanism in the journal Nature Communications. The trigger is the accumulation of toxic proteins in the brain. The enzyme p38 MAP kinase then interacts with the protein LaminB1, leading to the collapse of the cell nucleus.
The numbers speak for themselves: In the frontal cortex of Alzheimer’s patients, 35% of cells showed karyoptosis. In healthy individuals, the figure was only 15%. In laboratory settings, researchers have already succeeded in halting the process: Blocking the p38-LaminB1 interaction led to a decrease in markers of cell death.
Enhancing Early Detection
Simultaneously, researchers are working on early detection methods. A study from Ruhr University Bochum, published in EMBO Molecular Medicine, examined blood biomarkers in 779 subjects over 17 years. The result revealed that the misfolding of the amyloid-beta protein is the strongest predictor of future disease during symptom-free stages (AUC value: 0.79).
Another often-quoted biomarker, P-tau217, lagged behind with a score of 0.67. Only a marker panel achieved a predictive accuracy of 0.87. Additionally, a study in Science on July 24 showed that the 3D structure of the genome changes in Alzheimer’s patients, parallel to the decline of synaptic programs.
Recognizing Early Warning Signs
As researchers continue to seek new biological markers, initial warning signs can often be detected early in daily life. An anonymous self-test utilizes seven targeted questions from experts to provide a discreet assessment of potential signs. These 7 questions help experts identify early warning signs
The Role of Lifestyle Factors
In addition to medical advancements, lifestyle factors are increasingly recognized. A pilot study by the University of Texas, presented on July 21 in London, showed that controlled inhalation of 5% CO2 activates the glymphatic system, leading participants to temporarily excrete more beta-amyloid.
In drug research, progress has been made with PTP1B and LM11A-31. The latter stabilized neural connectivity in a Phase 2a study with 159 participants.
Stimulating the Mind
Alongside medical progress, targeted cognitive stimulation plays a central role in sustainably improving concentration and memory. A free guide provides 11 practical exercises to actively prevent dementia in daily life. These 11 everyday exercises keep your brain fit into old age
Interestingly, taking just 3,000 steps daily can slow the spread of tau protein in early Alzheimer’s patients, according to a study in Nature Medicine. The WHO has responded by recommending 150 to 300 minutes of moderate exercise per week. Experts estimate that as much as 45% of dementia risk could be managed through such factors.
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