Health
New Drug Shows Promise in Treating Alzheimer’s Symptoms in Mice
A compound derived from common herbs has shown promising results in improving memory and reducing harmful brain protein build-ups in mice, potentially paving the way for new Alzheimer’s treatments.
Breakthrough Study on Memory Enhancement
Researchers from The Scripps Research Institute in the United States have successfully tested a derivative of carnosic acid, a molecule found in rosemary and sage, for its potential in treating Alzheimer’s disease. Their findings, published in the journal Antioxidants, suggest that the compound, called diAcCA, could play a crucial role in combating cognitive decline.
In their study, mice genetically modified to exhibit Alzheimer’s-like symptoms were treated with diAcCA for three months. The results were striking: the mice demonstrated significant improvements in learning and memory, along with an increase in synapses—the vital junctions where neurons communicate. Since synapse loss is strongly linked to cognitive decline, these findings indicate a potential breakthrough in Alzheimer’s research.
Reduction of Alzheimer’s Hallmarks
Beyond cognitive improvements, the treated mice exhibited a reduction in amyloid plaques and tau tangles—two harmful proteins associated with Alzheimer’s. These protein accumulations are key indicators of the disease in humans and contribute to the progressive cognitive deterioration seen in patients.
Professor Stuart Lipton, a senior author of the study, highlighted the dual benefits of diAcCA, stating, “By combating inflammation and oxidative stress, we actually increased the number of synapses in the brain. We also reduced the levels of misfolded or aggregated proteins such as phosphorylated tau and amyloid-β, which are known biomarkers of Alzheimer’s disease.”
An Innovative Approach with Antioxidant Properties
Carnosic acid, the parent molecule of diAcCA, is known for its antioxidant and anti-inflammatory properties. However, it degrades rapidly, making it difficult to use in medical applications. The researchers overcame this limitation by developing diAcCA, a more stable form of the compound that can be taken orally and converted into carnosic acid in the stomach before entering the bloodstream.
According to the study, the amount of the active compound in the blood of treated mice was 20% higher compared to traditional carnosic acid ingestion, suggesting greater efficacy. “We did multiple different tests of memory, and they were all improved with the drug,” Lipton noted. “It didn’t just slow down the decline; it improved virtually back to normal.”
Potential Implications for Alzheimer’s Treatment
Alzheimer’s disease is the most common form of dementia, accounting for 70% of cases. Currently affecting around 7 million people across Europe, this number is expected to double to 14 million by 2030 due to the ageing population.
With promising preclinical results, researchers hope that diAcCA could lead to a viable treatment for Alzheimer’s in humans. The next steps will involve further studies to confirm its effectiveness and safety before progressing to human trials. If successful, this research could mark a significant milestone in the fight against neurodegenerative diseases.
Health
World Cup Emotion Can Strain the Heart, Cardiologists Warn Fans at Risk
As the World Cup begins, medical experts are cautioning football fans with underlying heart conditions that the emotional intensity of matches can place unexpected strain on the cardiovascular system.
Cardiologists say that the excitement, tension, and anxiety generated during high-stakes games can trigger physical reactions similar to intense exercise, raising heart rate, blood pressure, and stress hormones.
“Intense emotions, whether positive or negative, can act as ‘precipitating risk factors’ for cardiovascular events such as heart attack,” said Paola Santalucia, a cardiologist and board member of the European Heart Network.
She explained that moments of extreme excitement, such as a decisive penalty shootout or a last-minute goal, may pose risks for people already living with heart disease. Those with additional risk factors, including hypertension, obesity, or smoking habits, are also advised to be cautious during emotionally charged matches.
Research using wearable devices has shown that during major football events, some fans experience heart rates climbing as high as 150 beats per minute. That level is comparable to sprinting and reflects how strongly the body reacts to emotional stress.
A study examining supporters during the 2025 German Cup final found that even watching from home can significantly affect physiological responses. “They still had an increase in heart rate that compares to walking, even though they didn’t walk,” said Christian Deutscher, professor of sports economics at Bielefeld University and co-author of the study.
He noted that the most intense reactions often occur not during goals themselves, but during moments of uncertainty such as VAR checks, penalty shootouts, or shots striking the post. These unpredictable situations, he said, are what drive the strongest emotional and physical responses among fans.
Deutscher also pointed out that stadium spectators may experience even greater strain due to environmental factors such as heat and alcohol consumption.
However, experts emphasize that football itself is not inherently dangerous. Instead, it is the body’s natural response to excitement that can create temporary stress.
“The adrenergic stimulation is at its max: extreme high blood pressure, high heart rate, and adrenaline, cortisol, skyrocketing,” said Dan Atar, professor of cardiology at Oslo University Hospital. In rare cases, he added, this surge can contribute to the rupture of arterial plaque in vulnerable individuals, potentially leading to a heart attack.
Atar stressed that such events can occur in everyday situations as well, including physical exertion like shoveling snow. “It is in no way dangerous to watch a football game,” he said. “All this is physiologic. It’s not dangerous to be excited.”
Still, he acknowledged that combining emotional stress with alcohol, heat, and pre-existing conditions can increase risk for some viewers.
Doctors advise those at higher risk to continue prescribed medications, limit alcohol intake, avoid smoking, and watch for warning signs such as chest pain or irregular heartbeat.
“The key message is not to avoid enjoying the match, but to do so with moderation and awareness,” Santalucia said.
Health
AI Models Show Ability to Mimic Human Emotions, Offering New Pathways for Mental Health Research
Health
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