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September 17, 2026Frontiers in ToxicologyOpen Access

ALDH1/2 deficiency modulates dieldrin-induced dopaminergic neurodegeneration and reactive glial morphometry in male mice

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Authors

OYOmar Yanouri ASAdam Schuller SRSavannah M. Rocha

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Overview

Animal study finds that ALDH1/2 deficiency attenuates dieldrin-induced dopaminergic neurodegeneration in male mice, indicating an unexpected regulatory role for ALDH in neurotoxicity.

Key Points

To assess whether ALDH1/2 deficiency exacerbates dieldrin-induced dopaminergic neurodegeneration and reactive glial alterations in the substantia nigra.
Six-month-old wildtype and Aldh1a1/Aldh2 double-knockout (Aldh1/2 KO) mice received dietary dieldrin at 0, 0.2, or 0.6 ppm in chow for 6 weeks.
Slide scanning microscopy and deep learning-based image analysis were utilized to quantify dopaminergic neuronal injury and glial morphometry in the substantia nigra.
Dieldrin exposure induced male-specific dopaminergic neurodegeneration, dose-dependent elevations in astrocytic density, and disease-associated changes in microglial morphology within the substantia nigra.
Aldh1/2 deficiency attenuated dopaminergic neuronal loss and distinctly modulated both reactive astrocytosis and microglial morphometric remodeling.

Cite This Study

Yanouri et al. (2026) studied this question.

synapsesocial.com/papers/6aabb61e5f706d05830e4970 https://doi.org/10.3389/ftox.2026.1888799

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September 17, 2026Frontiers in ToxicologyOpen Access

ALDH1/2 deficiency modulates dieldrin-induced dopaminergic neurodegeneration and reactive glial morphometry in male mice

View Full Paper

Ask AI

Bookmark

Authors

OYOmar Yanouri ASAdam Schuller SRSavannah M. Rocha

Discussion

Member takes

Overview

Animal study finds that ALDH1/2 deficiency attenuates dieldrin-induced dopaminergic neurodegeneration in male mice, indicating an unexpected regulatory role for ALDH in neurotoxicity.

Key Points

To assess whether ALDH1/2 deficiency exacerbates dieldrin-induced dopaminergic neurodegeneration and reactive glial alterations in the substantia nigra.
Six-month-old wildtype and Aldh1a1/Aldh2 double-knockout (Aldh1/2 KO) mice received dietary dieldrin at 0, 0.2, or 0.6 ppm in chow for 6 weeks.
Slide scanning microscopy and deep learning-based image analysis were utilized to quantify dopaminergic neuronal injury and glial morphometry in the substantia nigra.
Dieldrin exposure induced male-specific dopaminergic neurodegeneration, dose-dependent elevations in astrocytic density, and disease-associated changes in microglial morphology within the substantia nigra.
Aldh1/2 deficiency attenuated dopaminergic neuronal loss and distinctly modulated both reactive astrocytosis and microglial morphometric remodeling.

Cite This Study

Yanouri et al. (2026) studied this question.

synapsesocial.com/papers/6aabb61e5f706d05830e4970 https://doi.org/10.3389/ftox.2026.1888799

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