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Cerebrospinal fluid and plasma β-endorphin levels in children with cerebral malaria
Oluwatosin Eunice Olorunmoteni1, Oluwagbemiga Oyewole Adeodu1, Saheed B A Oseni1
1Department of Paediatrics and Child Health Obafemi Awolowo UniversityIle-Ife Osun State Nigeria.
Objectives:
Cerebral malaria (CM) is the most lethal form of malaria, yet its pathogenesis is not fully understood. Cytoadherence, sequestration, alterations in cytokine expression, inflammation, and microvascular obstruction are all hypothesized to be important in the aetio-pathogenesis of coma which characterizes cerebral malaria and the death which sometimes result. Beta (β)-endorphin has been postulated to be involved in the pathogenetic processes of inflammation and cytokine expression, although the exact role is unknown. The aim of this study was to determine the levels of β-endorphin in cerebrospinal fluid (CSF) and plasma of children with CM and compare the levels of β-endorphin in the plasma of children with CM with that of apparently healthy age- and sex-matched controls at Ile-Ife, Nigeria.
Materials And Methods:
Additional to the standard investigation for CM, CSF and venous blood samples were obtained from the subjects for the determination of β-endorphin levels.
Results:
Forty children with CM were studied along with forty age- and sex-matched controls. The mean CSF β-endorphin (± SD) level for the children with CM was 1.8 ± 0.9 pmol/L. The mean plasma β-endorphin levels at admission (3.1 ± 2.0 pmol/L) and discharge (4.1 ± 3.3 pmol/L) were higher in children with CM than in the control subjects (2.7 ± 0.7 pmol/L). However, only the mean plasma β-endorphin levels at discharge was significantly higher than that of controls (p = .012).
Conclusion:
Children with CM had higher mean plasma β-endorphin levels compared to the controls and there was increased production of β-endorphins in children with CM during the course of the illness.
Insights
Children with cerebral malaria (CM) show elevated beta-endorphin levels in plasma, particularly at discharge, suggesting increased production during illness. This finding contributes to understanding CM pathogenesis.
Area of Science:
- Neuroscience
- Immunology
- Infectious Diseases
Background:
- Cerebral malaria (CM) is a severe complication of malaria, with poorly understood pathogenesis.
- Key factors implicated in CM include cytoadherence, inflammation, and microvascular obstruction.
- Beta-endorphin's role in inflammation and cytokine expression during CM is under investigation.
Purpose of the Study:
- To determine beta-endorphin levels in cerebrospinal fluid (CSF) and plasma of children with CM.
- To compare plasma beta-endorphin levels in children with CM to healthy controls.
- To investigate the association between beta-endorphin and CM severity.
Main Methods:
- Studied 40 children diagnosed with CM and 40 age- and sex-matched healthy controls.
- Collected cerebrospinal fluid (CSF) and venous blood samples for beta-endorphin level determination.
- Measured beta-endorphin concentrations using standard laboratory assays.
Main Results:
- Mean CSF beta-endorphin level in CM patients was 1.8 ± 0.9 pmol/L.
- Mean plasma beta-endorphin levels were higher in CM patients (3.1 ± 2.0 pmol/L at admission, 4.1 ± 3.3 pmol/L at discharge) compared to controls (2.7 ± 0.7 pmol/L).
- Significantly higher plasma beta-endorphin levels were observed in CM patients at discharge (p = 0.012).
Conclusions:
- Children with CM exhibit elevated plasma beta-endorphin levels compared to controls.
- Increased production of beta-endorphins occurs in children during the course of CM.
- Beta-endorphin may play a role in the inflammatory processes associated with cerebral malaria.
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