Cited by 120Tryptophan and brain disordersTreatment of Major DepressionStress Responses and Cortisol

Treatment response and cognitive impairment in major depression: Association with C-reactive protein

Chang, Hui Hua, Lee, I Hui, Gean, Po Wu, Lee, Sheng-Yu, Chi, Mei Hung, Yang, Yen Kuang, Lu, Ru-Band, Chen, Po See·2012·Brain, Behavior, and Immunity

Abstract

Levels of inflammatory markers have been found to be significantly associated with major depressive disorder (MDD) and cognitive impairment. The aim of this study was to investigate whether the level of C-reactive protein (CRP) is correlated with depressive mood and cognitive impairment in MDD patients. In 149 subjects with MDD, the 21-item Hamilton Rating Scale for Depression (HAM-D), Continuous Performance Test (CPT), Finger-Tapping Test (FTT), and Wisconsin Card-Sorting Test (WCST) were administered before and after antidepressant treatment. Besides, the level of CRP was measured. After 6weeks of treatment, the total HAM-D scores decreased significantly. In addition, the subjects' performance in the masked CPT and the WCST with completed categories significantly improved (p<0.001 and p=0.027, respectively) after the reliable change indices were corrected for practice effects. The CRP levels had increased significantly after six weeks of treatment after adjustment for age and gender (p<0.001). In addition, the CRP levels remained significantly high after six weeks of treatment in patients with a higher baseline level (r=0.657, p<0.001). Although the association between baseline CRP level and HAM-D score was not significant, the baseline CRP level was significantly correlated with treatment response at week 2 (r=0.327, p=0.020). The baseline CRP level was also negatively correlated with performance in the FTT before treatment (r=-0.580, p=0.006). Moreover, the baseline CRP level was significantly correlated with performance in the FTT (r=-0.501, p=0.021) and WCST with completed categories (r=-0.521, p=0.015) at week 6. The cognitive function of patients with high baseline CRP levels might remain impaired even if their mood symptoms improve after antidepressant treatment. Whether adjunctive anti-inflammatory medication may help to preserve cognitive function merits further investigation.

Integrity signals

Registry

Crossref · 10.1016/j.bbi.2011.07.239

Cites

61 of 61 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Elevated serum C-reactive protein indicates poor response to psychological treatment such as cognitive behavioural therapy or interpersonal therapy but good response to antidepressants such as fluoxetine or nortriptyline.

    “Studies have shown that elevated serum CRP indicates poor response to psychological treatment (such as cognitive behavioural therapy (CBT) or interpersonal therapy) but good response to antidepressant, such as fluoxetine or nortriptyline.17–20”
  • Among 149 recruited subjects, there was no association between CRP levels and HAM-D scores in the medication-free MDD subgroup.

    “Chang et al. (2012) [50] evaluated whether CRP levels were associated with depressive symptoms and cognitive impairment in MDD patients. The authors found that among 149 recruited subjects, there was no association between CRP levels and HAM-D scores in the medication-free MDD subgroup.”
  • After six weeks of treatment, patients with higher baseline CRP levels still exhibited poor psychomotor speed and poor executive functioning.

    “After six weeks of treatment, patients with higher baseline CRP levels still exhibited poor psychomotor speed and poor executive functioning [50].”
  • In 149 MDD patients treated with antidepressants for six weeks, baseline CRP levels were negatively and significantly associated with performance in the FTT and WCST after six weeks of treatment (respectively, p = 0.006 and p = 0.021), reporting a significant association between CRP levels and the domains of attention and executive cognitive function.

    “A cross-sectional study evaluated the association between CRP levels, depressive symptoms, and cognitive impairment in 149 MDD patients treated with antidepressants for six weeks [50]. Scale for Depression (HAM-D), Continuous Performance Test (CPT), Finger-Tapping Test (FTT), and Wisconsin Card-Sorting Test (WCST) were administered to the sample. Baseline CRP levels were negatively and”
  • Pro-inflammatory status may correlate with poor neurocognitive performance.

    “there is evidence that pro-inflammatory status may also correlate with poor neurocognitive performance [102].”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Chang, H. H., Lee, I. H., Gean, P. W., Lee, S.-Y., Chi, M. H., Yang, Y. K., Lu, R.-B., & Chen, P. S.
Affiliations
  • National Cheng Kung University (TW)
  • National Cheng Kung University Hospital (TW)
Corresponding author
Chen, Po See
Venue
Brain, Behavior, and Immunity
Publisher
Elsevier BV
Published
2012-01
Volume
26
Issue
1
Pages
90-95
ISSN
0889-1591 (ISSN-L)
OpenAlex
W2090213741
Cited by
120
References
61
Citations by year
2026: 2 · 2025: 5 · 2024: 8 · 2023: 10 · 2022: 14 · 2021: 15 · 2020: 7 · 2019: 12 · 2018: 12 · 2017: 7 · 2016: 11 · 2015: 3 · 2014: 6 · 2013: 7
FWCI
1.21
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Behavior and Immunity (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Cheng Kung University
Topics
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
major depressive disorder, C-reactive protein, cognitive impairment, antidepressant response, inflammatory markers, depressive mood, executive function, finger tapping speed
MeSH terms
Adult, Antidepressive Agents, C-Reactive Protein, Cognition Disorders, Major Depressive Disorder, Female, Fingers, Humans, Male, Middle Aged, Neuropsychological Tests, Psychiatric Status Rating Scales, Psychomotor Performance, Treatment Outcome, Diagnostic and Statistical Manual of Mental Disorders

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review