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Updated: May 5, 2026

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Isolation and Flow Cytometric Analysis of Immune Cells from the Ischemic Mouse Brain
Published on: February 12, 2016
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Circulating interleukins concentrations and post-stroke depression: A systematic review and meta-analysis
Ting Zheng1, Taotao Jiang1, Rundong Li2
1Department of Neurology, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, China; The Second Clinical Medical School, Lanzhou University, Lanzhou 730030, China.
Summary
Circulating interleukin levels, including IL-1, IL-6, and IL-17, may help diagnose post-stroke depression (PSD). This meta-analysis found distinct interleukin profiles in PSD patients compared to those without depression.
Area of Science:
- Neuroimmunology
- Biomarker Discovery
- Stroke Research
Background:
- Post-stroke depression (PSD) is a common complication affecting patient recovery.
- Identifying reliable biomarkers for PSD is crucial for timely diagnosis and treatment.
- Interleukins, a class of cytokines, are implicated in inflammatory and neurological processes.
Approach:
- A systematic literature search was conducted across eight databases for studies on circulating interleukin concentrations in PSD patients.
- Forty-five studies comparing interleukin levels in PSD patients and stroke patients without depression (NPSD) were included.
- Meta-analysis was performed using RevMan 5.4 software to synthesize the findings.
Key Points:
- PSD patients exhibited higher concentrations of IL-1, IL-4, IL-6, and lower IL-10 compared to NPSD patients.
- Elevated circulating IL-1, IL-6, and IL-18 were observed in the acute phase of PSD.
- Significantly higher IL-6 and IL-17 levels were noted at discharge and at 3-6 months post-stroke in PSD patients.
Conclusions:
- Circulating interleukin concentrations demonstrate potential as diagnostic biomarkers for post-stroke depression.
- Specific interleukin profiles (e.g., elevated IL-6, IL-17) may indicate the presence or risk of PSD.
- Further research can validate these findings for clinical application in stroke patient management.
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