Unconjugated bilirubin as a state marker in patients with schizophrenia in acute episode: an Egyptian study

Abstract Background There is a substantial body of evidence linking unconjugated bilirubin to schizophrenia. Most of the earlier research has found a statistically significant relationship between the two factors. Aim of the work To study the level of unconjugated bilirubin in individuals with acute...

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Main Authors: Afaf Mohamed Abd-Elsamei, Dina Aly El Gabry, Maha Sabry Mohamed, Mariam Yehia Mohamed, Rehab Serag
Format: Article
Language:English
Published: SpringerOpen 2024-04-01
Series:Middle East Current Psychiatry
Subjects:
Online Access:https://doi.org/10.1186/s43045-024-00410-z
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author Afaf Mohamed Abd-Elsamei
Dina Aly El Gabry
Maha Sabry Mohamed
Mariam Yehia Mohamed
Rehab Serag
author_facet Afaf Mohamed Abd-Elsamei
Dina Aly El Gabry
Maha Sabry Mohamed
Mariam Yehia Mohamed
Rehab Serag
author_sort Afaf Mohamed Abd-Elsamei
collection DOAJ
description Abstract Background There is a substantial body of evidence linking unconjugated bilirubin to schizophrenia. Most of the earlier research has found a statistically significant relationship between the two factors. Aim of the work To study the level of unconjugated bilirubin in individuals with acute schizophrenia and to investigate its correlation with neuropsychological, psychopathological, and psychosocial aspects of the disorder. Patients and methods Eighty schizophrenia patients were included in the sample, they had multiple previous episodes and were in acute episodes at the time of recruitment. Forty healthy individuals were recruited for the control group. The DSM-IV was used to diagnose the subjects, and the Trail Making Test (TMT), Positive and Negative Syndrome Scale (PANSS), General Assessment of Function (GAF), and Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I) were used to evaluate the subjects’ social functioning, symptom severity, and cognitive functioning. A blood sample was drawn to measure serum bilirubin level. We analyzed the relationship and correlation of unconjugated bilirubin with the previous scale scores. Results Compared to healthy control individuals, who volunteered to participate, schizophrenia patients reported significantly higher levels of both total and indirect bilirubin. One subject (with schizophrenia) had an abnormally elevated total bilirubin level (> 1.2 mg/dL). Neither the direct nor the indirect bilirubin levels (> 0.3 mg/dl or > 1.2 mg/dL) were clinically abnormal in any of the patients. PANSS total score, PANSS N score, and PANSS G score were found to have a statistically significant positive connection with levels of total, direct, and indirect bilirubin. Age, gender, smoking, BMI, Total PANSS, PANSS P, PANSS N, PANSS G, GAF, TMT-A, TMT-B, antipsychotic medication, psychotic disorder duration, and duration of untreated psychosis were not predictive of total or indirect bilirubin levels, according to linear regression analysis. However, Total PANSS, PANSS N, and PANSS G were significantly predictive for direct bilirubin levels. Conclusion A statistically significant difference in total and unconjugated bilirubin mean serum levels between schizophrenia patients and healthy individuals was found. More studies are recommended to revise the contradictory results in literature on the unconjugated bilirubin and Schizophrenia.
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spelling doaj.art-40679bc0b88b4e8096b3196a71b01e532024-04-07T11:07:00ZengSpringerOpenMiddle East Current Psychiatry2090-54162024-04-013111810.1186/s43045-024-00410-zUnconjugated bilirubin as a state marker in patients with schizophrenia in acute episode: an Egyptian studyAfaf Mohamed Abd-Elsamei0Dina Aly El Gabry1Maha Sabry Mohamed2Mariam Yehia Mohamed3Rehab Serag4Faculty of Medicine, Ain Shams UniversityDepartment of Psychiatry, College of Medicine and Health Sciences, United Arab Emirates UniversityFaculty of Medicine, Ain Shams UniversityFaculty of Medicine, Ain Shams UniversityFaculty of Medicine, Ain Shams UniversityAbstract Background There is a substantial body of evidence linking unconjugated bilirubin to schizophrenia. Most of the earlier research has found a statistically significant relationship between the two factors. Aim of the work To study the level of unconjugated bilirubin in individuals with acute schizophrenia and to investigate its correlation with neuropsychological, psychopathological, and psychosocial aspects of the disorder. Patients and methods Eighty schizophrenia patients were included in the sample, they had multiple previous episodes and were in acute episodes at the time of recruitment. Forty healthy individuals were recruited for the control group. The DSM-IV was used to diagnose the subjects, and the Trail Making Test (TMT), Positive and Negative Syndrome Scale (PANSS), General Assessment of Function (GAF), and Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I) were used to evaluate the subjects’ social functioning, symptom severity, and cognitive functioning. A blood sample was drawn to measure serum bilirubin level. We analyzed the relationship and correlation of unconjugated bilirubin with the previous scale scores. Results Compared to healthy control individuals, who volunteered to participate, schizophrenia patients reported significantly higher levels of both total and indirect bilirubin. One subject (with schizophrenia) had an abnormally elevated total bilirubin level (> 1.2 mg/dL). Neither the direct nor the indirect bilirubin levels (> 0.3 mg/dl or > 1.2 mg/dL) were clinically abnormal in any of the patients. PANSS total score, PANSS N score, and PANSS G score were found to have a statistically significant positive connection with levels of total, direct, and indirect bilirubin. Age, gender, smoking, BMI, Total PANSS, PANSS P, PANSS N, PANSS G, GAF, TMT-A, TMT-B, antipsychotic medication, psychotic disorder duration, and duration of untreated psychosis were not predictive of total or indirect bilirubin levels, according to linear regression analysis. However, Total PANSS, PANSS N, and PANSS G were significantly predictive for direct bilirubin levels. Conclusion A statistically significant difference in total and unconjugated bilirubin mean serum levels between schizophrenia patients and healthy individuals was found. More studies are recommended to revise the contradictory results in literature on the unconjugated bilirubin and Schizophrenia.https://doi.org/10.1186/s43045-024-00410-zUnconjugated bilirubinSchizophreniaBiomarkers
spellingShingle Afaf Mohamed Abd-Elsamei
Dina Aly El Gabry
Maha Sabry Mohamed
Mariam Yehia Mohamed
Rehab Serag
Unconjugated bilirubin as a state marker in patients with schizophrenia in acute episode: an Egyptian study
Middle East Current Psychiatry
Unconjugated bilirubin
Schizophrenia
Biomarkers
title Unconjugated bilirubin as a state marker in patients with schizophrenia in acute episode: an Egyptian study
title_full Unconjugated bilirubin as a state marker in patients with schizophrenia in acute episode: an Egyptian study
title_fullStr Unconjugated bilirubin as a state marker in patients with schizophrenia in acute episode: an Egyptian study
title_full_unstemmed Unconjugated bilirubin as a state marker in patients with schizophrenia in acute episode: an Egyptian study
title_short Unconjugated bilirubin as a state marker in patients with schizophrenia in acute episode: an Egyptian study
title_sort unconjugated bilirubin as a state marker in patients with schizophrenia in acute episode an egyptian study
topic Unconjugated bilirubin
Schizophrenia
Biomarkers
url https://doi.org/10.1186/s43045-024-00410-z
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