Research Keyword: dendritic spines

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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Cerebral Hypoxia-Induced Molecular Alterations and Their Impact on the Physiology of Neurons and Dendritic Spines: A Comprehensive Review

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This review explains how low oxygen levels in the brain damage nerve cells and their connection points (dendritic spines) through a cascade of molecular changes. The brain normally has protective mechanisms, but severe or prolonged hypoxia overwhelms these defenses, leading to memory loss and cognitive problems. Several molecular pathways and supporting cells called astrocytes and microglia can help protect neurons. Understanding these protective mechanisms may lead to new treatments for brain conditions caused by low oxygen, such as stroke.

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New Positive TRPC6 Modulator Penetrates Blood–Brain Barrier, Eliminates Synaptic Deficiency and Restores Memory Deficit in 5xFAD Mice

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Researchers developed a new drug candidate called C20 that activates TRPC6 proteins in the brain. In studies with Alzheimer’s disease mouse models, C20 protected nerve connections from damage, restored memory function, and successfully crossed the blood-brain barrier. The compound shows promise as a potential treatment for Alzheimer’s disease by strengthening the connections between brain cells that are damaged in the disease.

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