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Brain tau spreads differently in early- and late-onset Alzheimer's disease

A new study from Karolinska Institutet has shown that the amount and distribution of the tau protein in the brain differs between early- and late-onset Alzheimer's disease. The results also indicate that blood tests do not always reflect changes in the brain. The research is publ

Admin Recifes 15/07/2026 1

Fear-learning circuit shows how stress disrupts brain's ability to suppress trauma

Fear is often thought of as a negative emotion but is actually a natural protective response to perceived threats or danger. It helps us survive. When we experience a situation that causes fear, it becomes stored in our brain as a fear memory. These fear memories prevent us from

Admin Recifes 15/07/2026 1

The circuit that lets your brain think and see

Nuttida Rungratsameetaweemana is challenging a story neuroscience has told for decades. According to the conventional account, our eyes collect raw information and relay it through a series of nerves and waystations that lead deep into the brain, eventually reaching the cortex. T

Admin Recifes 15/07/2026 1

Study identifies new brain targets for individualized epilepsy treatment

Mayo Clinic researchers have created a detailed map of the pulvinar, a deep brain region that could help doctors more precisely target brain stimulation therapies for people with drug-resistant epilepsy.

Admin Recifes 15/07/2026 1

BCG vaccine may rewire brain immunity, shift Alzheimer's markers over 12 months

New research led by Mass General Brigham investigators suggests that the Bacillus Calmette-Guérin (BCG) vaccine—which is delivered through the skin to prevent tuberculosis—may remodel the human brain's immune environment, offering a potential biological explanation for previously

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Dementia-causing substance turns into a therapeutic 'switch' with new Alzheimer's drug str

A substance that worsens dementia has become a "switch" that initiates treatment. KAIST researchers have developed a new therapeutic approach that uses hydrogen peroxide (H₂O₂), a reactive oxygen species that damages cells and increases in the brains of patients with Alzheimer's

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Ultra-processed foods linked to brain differences in young children

More than half the calories consumed by young kids in the U.S. come from ultra-processed foods. O recorte ajuda a contextualizar a pauta dentro de Fitness.

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Parkinson's patients undergoing deep brain stimulation show little to no cortical Lewy pat

Researchers at the Icahn School of Medicine at Mount Sinai have found that patients with Parkinson's disease undergoing deep brain stimulation (DBS) show little to no Lewy pathology in the prefrontal cortex at the time of their DBS surgery, despite often having longstanding, clin

Admin Recifes 15/07/2026 1

Precision fMRI maps prefrontal cortex in individuals, revealing fine-scale structures

Much like camera settings—filters, flashes and focus—affect what we notice in a final photo, the way scientists measure something can affect how we interpret and understand it. This is especially true when imaging things that we can't see on our own, such as activity in the human

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Dynamic protein behavior drives blood-brain barrier specialization, study reveals

A study led by researchers at the Institute for Bioengineering of Catalonia (IBEC), in collaboration with the Proteomics Platform of the Institute for Research in Biomedicine (IRB Barcelona), has uncovered a key mechanism that helps define how the blood-brain barrier functions—no

Admin Recifes 15/07/2026 1

Virus influences rare brain lymphomas, large study finds

Primary CNS lymphoma is a rare cancer that arises from malignant white blood cells. Affected individuals develop tumors in the brain and, more rarely, in the spinal cord, the eyes or within the cerebrospinal fluid. These lymphomas can occur in people with weakened immune systems,

Admin Recifes 15/07/2026 1

Brain scans reveal impaired waste clearance in ME/CFS, offering clue to brain fog

The brain's waste clearance system is impaired in people living with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), which can lead to various symptoms, including brain fog, Griffith University researchers have discovered.

Admin Recifes 15/07/2026 1

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