What question did this study set out to answer?

To determine whether adipocyte-specific perturbation of mitochondrial calcium uptake via MICU1 deletion causes memory deficits and hippocampal neurohistopathology.

August 1, 2026Biomedical JournalOpen Access

Adipocyte-specific MICU1 deficiency impairs memory and compromises hippocampal integrity in adult male mice

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Authors

WWWei-Hsuan Wang PTPei-Jane Tsai CLChing-Han Lin

Discussion

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Overview

Preclinical mouse study reveals that adipocyte-specific MICU1 deletion impairs memory and compromises hippocampal integrity, highlighting a peripheral mitochondrial link to cognitive decline.

Key Points

To determine whether adipocyte-specific perturbation of mitochondrial calcium uptake via MICU1 deletion causes memory deficits and hippocampal neurohistopathology.
Generated adipocyte-specific mitochondrial calcium uptake 1 knockout (aMICU1 KO) adult male mice and evaluated body composition and adiposity.
Assessed cognitive and motor behaviors using Y-maze spontaneous alternation, novel object recognition, rotarod, open field, and elevated plus maze tests.
Quantified hippocampal integrity and neurogenesis using Nissl staining, TUNEL, cleaved caspase-3, and BrdU/DCX labeling, alongside plasma and tissue GDF15 pathway profiling.
aMICU1 KO mice exhibited significant deficits in spontaneous alternation and novel object recognition, without alterations in body weight, fat mass, locomotion, or anxiety.
Hippocampi from knockout mice displayed reduced Nissl-positive cell counts, elevated apoptosis marked by TUNEL and cleaved caspase-3, and decreased BrdU+ and BrdU+/DCX+ neural progenitor populations.
Plasma GDF15 levels were significantly increased as a systemic stress marker, while hippocampal MICU1 expression, GFRAL/RET receptors, and downstream AKT/ERK signaling remained unaltered.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a92ea165061e05975bb6533 https://doi.org/10.1016/j.bj.2026.101034

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August 1, 2026Biomedical JournalOpen Access

Adipocyte-specific MICU1 deficiency impairs memory and compromises hippocampal integrity in adult male mice

View Full Paper

Ask AI

Bookmark

Authors

WWWei-Hsuan Wang PTPei-Jane Tsai CLChing-Han Lin

Discussion

Member takes

Overview

Preclinical mouse study reveals that adipocyte-specific MICU1 deletion impairs memory and compromises hippocampal integrity, highlighting a peripheral mitochondrial link to cognitive decline.

Key Points

To determine whether adipocyte-specific perturbation of mitochondrial calcium uptake via MICU1 deletion causes memory deficits and hippocampal neurohistopathology.
Generated adipocyte-specific mitochondrial calcium uptake 1 knockout (aMICU1 KO) adult male mice and evaluated body composition and adiposity.
Assessed cognitive and motor behaviors using Y-maze spontaneous alternation, novel object recognition, rotarod, open field, and elevated plus maze tests.
Quantified hippocampal integrity and neurogenesis using Nissl staining, TUNEL, cleaved caspase-3, and BrdU/DCX labeling, alongside plasma and tissue GDF15 pathway profiling.
aMICU1 KO mice exhibited significant deficits in spontaneous alternation and novel object recognition, without alterations in body weight, fat mass, locomotion, or anxiety.
Hippocampi from knockout mice displayed reduced Nissl-positive cell counts, elevated apoptosis marked by TUNEL and cleaved caspase-3, and decreased BrdU+ and BrdU+/DCX+ neural progenitor populations.
Plasma GDF15 levels were significantly increased as a systemic stress marker, while hippocampal MICU1 expression, GFRAL/RET receptors, and downstream AKT/ERK signaling remained unaltered.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a92ea165061e05975bb6533 https://doi.org/10.1016/j.bj.2026.101034

View Full Paper

Ask AI

Bookmark