Study of brain perfusion in adults with Down syndrome along the Alzheimer’s disease continuum

Cerebral perfusion is the amount of blood reaching a given brain region at any given time. In other words, it is the “irrigation” that supplies neurons with oxygen and nutrients. When perfusion decreases or becomes abnormally distributed, it may indicate that an area is beginning to deteriorate, even before clinical symptoms or signs of atrophy … Read more

Association of plasma phosphorylated tau 217 with clinical deterioration across Alzheimer disease stages

Blood biomarkers have become a key tool for diagnosing Alzheimer’s disease in a more accessible way. While plasma p-tau217 is already established as a strong diagnostic marker, little was known about its ability to predict how the disease progresses across different clinical stages. In this study, published in Neurology, we show that plasma p-tau217 is … Read more

Women show greater capacity to compensate for brain damage in cases of genetic frontotemporal dementia

Frontotemporal dementia (FTD) encompasses a diverse group of neurodegenerative diseases characterized by progressive deterioration in social behavior, language, and executive functions. This condition has a strong genetic basis, with up to 30% of affected individuals carrying autosomal dominant mutations. Sex has gained importance in neurodegenerative research, especially in Alzheimer’s disease, where evidence shows that, together … Read more

Single-cell RNA Sequencing Highlights Key Role of Natural Killer Cells in ALS

The immune system plays a significant role in the development of various neurodegenerative diseases. In this study published in the Journal of Neuroinflammation, the role of the immune system in this disease is investigated for the first time at single-cell resolution. Natural killer (NK) cells are primarily known for their role in the defense against … Read more

Identification of ARPP21 as a New Gene Linked to ALS

Identification of a pathogenic mutation in ARPP21 in patients with amyotrophic lateral sclerosis

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease that causes the progressive degeneration of motor neurons, the cells responsible for transmitting signals from the brain to the muscles. While the exact cause of this rare disease remains unknown, around 40 genes have been associated with ALS. In a study published in the Journal of Neurology, … Read more

Enhanced Resolution to Study Synaptic Tau Pathology in Alzheimer’s Disease

Enhanced Resolution to Study Synaptic Tau Pathology in Alzheimer’s Disease

Our recent study shows that combining Array Tomography with an advanced imaging technique called Two-Colour Direct Stochastic Optical Reconstruction Microscopy (dSTORM) allows for the observation of tau pathology at synapses with unprecedented detail. This approach offers new insights into how these proteins disrupt brain function in Alzheimer’s disease (AD). What Was Done in This Study? … Read more