Research Topic: synaptic function

β-secretase inhibition prevents structural spine plasticity deficits in AppNL-G-F mice

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Researchers tested whether a drug that blocks BACE1 (an enzyme involved in Alzheimer’s disease) could protect nerve cell connections in a mouse model of Alzheimer’s disease. They found that at high doses, the drug significantly improved the formation of new dendritic spines (connection points between neurons) and restored synaptic activity to near-normal levels. These findings suggest that using BACE1 inhibitors early in Alzheimer’s disease development, before widespread neuronal damage occurs, might help prevent cognitive decline.

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Axin2 coupled excessive Wnt-glycolysis signaling mediates social defect in autism spectrum disorders

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Autism spectrum disorder affects social abilities in millions of people, but the underlying causes remain poorly understood. This research discovered that in the brains of people with autism, certain cellular processes that control energy and signaling become overactive, particularly in the region controlling social behavior. The good news is that the researchers found a drug-like compound called XAV939 can restore normal function by blocking the abnormal interaction between two key proteins, potentially offering a new treatment approach.

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The regulatory variant rs1950834 confers the risk of depressive disorder by reducing LRFN5 expression

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Researchers identified a genetic variant (rs1950834) that increases depression risk by reducing production of LRFN5, a protein important for brain connections. They found this variant affects how brain cells in a region called the nucleus accumbens produce LRFN5. When LRFN5 levels are low, mice become more depressed and sensitive to stress, but boosting LRFN5 protects against depression. This discovery could lead to new ways to diagnose and treat depression.

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