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Aberrant apolipoprotein E expression and cognitive dysfunction in patients with poststroke depression.

Zhaohui Zhang¹, Junlin Mu, Jing Li

¹Department of Psychosomatic Medicine, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China.

Genetic Testing and Molecular Biomarkers

|November 23, 2012

Summary

This summary is machine-generated.

Apolipoprotein E (ApoE) levels and event-related potentials (ERPs) may help identify post-stroke depression (PSD) risk. Aberrant serum ApoE and altered ERPs could serve as diagnostic markers for PSD.

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Published on: March 22, 2016

Area of Science:

Neuroscience
Genetics
Psychiatry

Background:

Apolipoprotein E (ApoE) is implicated in cognitive disorders.
Understanding ApoE's role in post-stroke depression (PSD) is crucial.

Purpose of the Study:

To investigate the influence of ApoE on PSD risk.
To identify objective biomarkers for PSD diagnosis.

Main Methods:

Compared cognitive function, serum ApoE, and ApoE mRNA in PSD patients, stroke controls, and healthy volunteers.
Utilized event-related potentials (ERPs) for cognitive evaluation.
Measured serum ApoE and ApoE mRNA expression via ELISA and RT-qPCR.

Main Results:

PSD patients exhibited prolonged ERP latencies (N2, P3) and reduced P3 amplitude.
No significant correlation found between P3 amplitude, ApoE mRNA, and serum ApoE in PSD patients.
PSD group showed lower peripheral ApoE mRNA and higher serum ApoE compared to stroke controls.

Conclusions:

Aberrant serum ApoE levels and specific ERP abnormalities may serve as potential biomarkers for PSD risk assessment.
These findings suggest objective markers for the clinical diagnosis of PSD.