Cognitive dysfunction

Screening of active components of Ganoderma lucidum and decipher its molecular mechanism to improve learning and memory disorders

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Researchers used computer analysis and laboratory experiments to understand how a medicinal mushroom called Ganoderma lucidum (reishi) helps improve memory and learning problems. They identified ten key active ingredients in the mushroom that work together to reduce inflammation in the brain and protect nerve cells. The most important ingredient appears to be a compound called β-sitosterol, which helps prevent memory loss similar to effects seen in Alzheimer’s disease.

Editorial: Dietary polysaccharides and brain health

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This editorial examines how eating foods rich in polysaccharides, such as grains, fruits, and mushrooms, may help protect brain health and cognitive function as we age. The research suggests these foods work through the gut microbiota, which communicates with the brain via the gut-brain axis. While single fiber sources show modest effects, combining different types of fermentable fibers may be more effective for improving memory and preventing age-related cognitive decline.

Identification of a psychiatric risk gene NISCH at 3p21.1 GWAS locus mediating dendritic spine morphogenesis and cognitive function

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Researchers identified a gene called NISCH that increases the risk of schizophrenia and bipolar disorder. When this gene is overactive, it changes the shape of connections between brain cells and impairs working memory in mice. Interestingly, blood pressure medications like clonidine can reduce NISCH activity and improve cognitive function, suggesting these drugs might help psychiatric patients.

The progress of the microbe-gut-brain axis in sepsis-associated encephalopathy

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Sepsis can cause brain dysfunction called sepsis-associated encephalopathy, leading to memory problems and confusion in about one-third to two-thirds of sepsis patients. The bacteria in your gut communicate with your brain through multiple pathways, and when sepsis disrupts this communication, it causes harmful inflammation in the brain. Treatments like probiotics and transplanting healthy gut bacteria from donors show promise in animal studies and early human trials for improving memory and cognitive function after sepsis.

Reprogramming astrocytic NDRG2/NF-κB/C3 signaling restores the diabetes-associated cognitive dysfunction

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This study found that regular exercise helps protect the brain of diabetic people from cognitive decline by boosting a protein called NDRG2 in astrocytes (brain support cells). The research shows that NDRG2 works by blocking harmful immune responses that damage synapses (connections between brain cells). In diabetic mice, exercise improved memory and learning ability while increasing NDRG2 levels, while blocking this protein reversed these benefits.

Research Keyword: Cognitive dysfunction

Screening of active components of Ganoderma lucidum and decipher its molecular mechanism to improve learning and memory disorders

Editorial: Dietary polysaccharides and brain health

Identification of a psychiatric risk gene NISCH at 3p21.1 GWAS locus mediating dendritic spine morphogenesis and cognitive function

The progress of the microbe-gut-brain axis in sepsis-associated encephalopathy

Reprogramming astrocytic NDRG2/NF-κB/C3 signaling restores the diabetes-associated cognitive dysfunction