C-reactive protein levels and cognitive functions in patients with bipolar disorder
Bibliographic record
Abstract
Introduction The pathophysiology of bipolar disorder (BD) is complex and remains uncertain to this day. Several hypotheses have been suggested, including the involvement of inflammatory mechanisms in its pathogenesis and in eventual cognitive impairment. C-reactive protein (CRP) is one of the most commonly used inflammatory markers. High-sensitivity CRP (hs- CRP) is a more sensitive marker. Objectives We aimed to examine hs-CRP levels in patients with BD, and to investigate its relationship with cognitive functions. Methods We conducted a cross-sectional study between June 2016 and July 2018 on drug-free BD patients. These participants were hospitalized at the “C” Psychiatry department of HediChaker University Hospital in Sfax-Tunisia which accepts only male patients. The diagnosis of BP disorder was established according to DSM-5 criteria. We used the Montreal Cognitive Assessment (MoCA) scale to assess cognitive functions in our patients, and blood samples were collected to analyze hs-CRP levels. Results Our study included 33 patients whose median age was 33 years, with an interquartile range of 27.5-44 years. The majority (90.3%) were diagnosed with type I of bipolar disorder and 9.7% were diagnosed with type II. At the time of the study, 82.4% had a maniac episode and 17.6% had a depressive one. The median MOCA scale score was 24 with an interquartile range of 19-26, and the analysis of hs-CRP values revealed a median level of 2.1 (interquartile range: 1.2-7.3). There was no significant correlation between hs-CRP levels and MOCA scores nor its domains. Table 1 shows the results of this correlation analysis. Table1: correlation results between hs-CRP levels and MOCA domains MOCA Visuospatial and executive functions naming attention language abstraction memory orientation hs-CRP r= 0.157 0.031 -0.092 -0.020 0.099 0.071 0.055 -0.151 p= 0.415 0.873 0.636 0.918 0.610 0.714 0.775 0.435 We also did not find any significant difference in hs-CRP levels between patients with depressive and maniac episodes. Conclusions Our study showed no significant relationship between inflammation and cognitive impairment in bipolar disorder. Further research is needed to better investigate the role of inflammatory processes in this disorder. Disclosure of Interest None Declared
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How this classification was reachedexpand
Direct model labels (unvalidated)
Per-model category and study-design labels from the labeling rounds. They are machine output, unvalidated, and the disagreement between models ships as data. No study design here is MEDLINE-validated yet.
| Model arm | Categories | Study design | Confidence |
|---|---|---|---|
| gemma | no category Domain: not available · Genre: Empirical About the Canadian research system: no · About a Canadian topic: no | Observational | low |
| gpt | no category Domain: not available · Genre: Empirical About the Canadian research system: no · About a Canadian topic: no | Observational | low |
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedLabeled directly by 2 models reading the full record.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".