hippocampus

The presence of lesions, or regions of damage, in a brain circuit tied to memory in stroke patients also associate with memory problems in multiple sclerosis (MS), a study shows. Findings may help to determine which lesions are likely to cause memory issues in people with the neurodegenerative condition,…

Subtle changes in structure in the hippocampus — a region of the brain involved in processing memories — can differentiate between relapsing-remitting and primary progressive multiple sclerosis, according to a new study. The study, “Unraveling the MRI-Based Microstructural Signatures Behind Primary Progressive and Relapsing–Remitting Multiple Sclerosis Phenotypes,”…

Sleep deprivation may worsen memory in people with clinically isolated syndrome (CIS) or relapsing-remitting multiple sclerosis (RRMS), a new observational study suggests. A link also was observed between a lack of sleep and worse cognitive efficiency in early MS, but that association was caused by the worse moods…

Sustained, excessive levels of interleukin 17A (IL-17A) — a pro-inflammatory molecule linked to multiple sclerosis (MS) and other autoimmune diseases — reduce the number and activity of the brain’s immune cells in the dentate gyrus, according to a study in mice. The dentate gyrus is part of the hippocampus, a…

A new research project will seek to better understand the biological processes that drive memory problems in people with multiple sclerosis (MS), as a better understanding of these processes may open new avenues for intervention. The four-year study is titled “Neuroimaging of Hippocampally Mediated Memory Dysfunction in…

People with multiple sclerosis (MS) who exercise regularly are able to maintain volume in the hippocampus, a brain region responsible for learning and memory, a study reports. This work “adds to the growing body of evidence that exercise has many benefits for people with MS,” the National MS…

As inflammation and neuronal death progressed in the brains of mice with multiple sclerosis (MS), a molecular signaling pathway with a key player called Wnt was seen to come into action in brain areas crucial for memory production, triggering the formation of new neurons. The findings, presented in the study…

Inflammation in a brain region called the hippocampus might explain why patients with multiple sclerosis (MS) suffer from depression far more often than patients with other chronic brain diseases. The findings, described in the report “Hippocampal Neuroinflammation, Functional Connectivity, and Depressive Symptoms in Multiple Sclerosis,” published in the…

In a study published in the International Neurology Journal, researchers showed that cognitive deficits, such as memory problems, in a rat model of multiple sclerosis (MS) are mirrored by changes in synaptic transmission and plasticity in the hippocampus, a brain region crucial for memory processing. The findings…

Microglial cells in the hippocampus, a brain region crucial for memory processing, may contribute to brain damage associated with cognitive impairment in multiple sclerosis (MS). The finding, published in the journal Scientific Reports, implies that targeting microglia could be a promising strategy to improve cognition in MS. While cognitive…

Researchers identified a new mechanism in the progression of multiple sclerosis (MS) that might explain the cognitive impairment and decline observed in these patients — a decline not directly associated with disease’s hallmarks of motor control loss, and one not currently addressed by the immunosuppressive drugs used to treat MS. The study, published…