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Related Experiment Video

Updated: Aug 6, 2025

Quantitative Structure-Activity Relationship, Activity Prediction, and Molecular Dynamics of Non-nucleotide Reverse Transcriptase Inhibitors

Quantitative Structure-Activity Relationship, Activity Prediction, and Molecular Dynamics of Non-nucleotide Reverse Transcriptase Inhibitors

Published on: May 9, 2025

The reverse transcriptase inhibitor 3TC protects against age-related cognitive dysfunction.

Devin Wahl^1,2, Meghan E Smith^1,2, Cali M McEntee^1,2

¹Department of Health and Exercise Science, Colorado State University, Fort Collins, Colorado, USA.

|March 23, 2023

Summary

This summary is machine-generated.

Aging increases transposable element (TE) transcripts, impacting cognitive function. The drug 3TC reverses this, improving cognition and neuronal health in aging models, suggesting a new therapeutic avenue for neurodegeneration.

Keywords:

Alzheimer's disease brain aging cognitive function neuroinflammation transcriptomics transposable elements

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Transcranial Direct Current Stimulation tDCS for Memory Enhancement

Transcranial Direct Current Stimulation tDCS for Memory Enhancement

Published on: September 18, 2021

Area of Science:

Neuroscience
Genetics
Aging Research

Background:

Aging is the primary risk factor for neurodegenerative diseases like Alzheimer's.
Brain aging involves neuroinflammation and reduced neuronal health, contributing to cognitive decline.
Age-related increases in transposable element (TE) transcripts are a potential, understudied cause of cognitive dysfunction.

Purpose of the Study:

To investigate the role of TE transcripts in brain aging and cognitive decline.
To determine if the reverse transcriptase inhibitor 3TC can mitigate age-related cognitive dysfunction and neuroinflammation.
To explore the translational relevance of TE transcript accumulation in human brain aging and Alzheimer's disease.

Main Methods:

Administered 3TC to old wild-type mice and a mouse model of tauopathy.
Assessed cognitive function, neuroinflammation, and neuronal health in treated and control groups.
Examined TE transcript levels in aging mouse and human brain samples.

Main Results:

3TC treatment improved cognitive function and reduced neuroinflammation in aging mice.
3TC preserved neuronal health in aging mice and Caenorhabditis elegans.
3TC enhanced cognitive function in a tauopathy mouse model.
TE transcripts accumulate with human brain aging and overlap with Alzheimer's disease patterns.

Conclusions:

Age-related TE transcript accumulation may drive cognitive decline and neurodegeneration.
Targeting TE transcripts with reverse transcriptase inhibitors like 3TC shows therapeutic potential for aging-related cognitive impairment and neurodegenerative diseases.