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Aquaporin 2 in Cerebral Edema: Potential Prognostic Marker in Craniocerebral Injuries
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Aquaporin 2 in Cerebral Edema: Potential Prognostic Marker in Craniocerebral Injuries
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Journal Article
Aquaporin 2 in Cerebral Edema: Potential Prognostic Marker in Craniocerebral Injuries
2024
Overview
Despite continuous medical advancements, traumatic brain injury (TBI) remains a leading cause of death and disability worldwide. Consequently, there is a pursuit for biomarkers that allow non-invasive monitoring of patients after cranial trauma, potentially improving clinical management and reducing complications and mortality. Aquaporins (AQPs), which are crucial for transmembrane water transport, may be significant in this context. This study included 48 patients, with 27 having acute (aSDH) and 21 having chronic subdural hematoma (cSDH). Blood plasma samples were collected from the participants at three intervals: the first sample before surgery, the second at 15 h, and the third at 30 h post-surgery. Plasma concentrations of AQP1, AQP2, AQP4, and AQP9 were determined using the sandwich ELISA technique. CT scans were performed on all patients pre- and post-surgery. Correlations between variables were examined using Spearman’s nonparametric rank correlation coefficient. A strong correlation was found between aquaporin 2 levels and the volume of chronic subdural hematoma and midline shift. However, no significant link was found between aquaporin levels (AQP1, AQP2, AQP4, and AQP9) before and after surgery for acute subdural hematoma, nor for AQP1, AQP4, and AQP9 after surgery for chronic subdural hematoma. In the chronic SDH group, AQP2 plasma concentration negatively correlated with the midline shift measured before surgery (Spearman’s ρ −0.54; p = 0.017) and positively with hematoma volume change between baseline and 30 h post-surgery (Spearman’s ρ 0.627; p = 0.007). No statistically significant correlation was found between aquaporin plasma levels and hematoma volume for AQP1, AQP2, AQP4, and AQP9 in patients with acute SDH. There is a correlation between chronic subdural hematoma volume, measured radiologically, and serum AQP2 concentration, highlighting aquaporins’ potential as clinical biomarkers.
Publisher
MDPI AG,MDPI
Subject
/ Aged
/ Brain
/ Brain Edema - diagnostic imaging
/ Brain Injuries, Traumatic - blood
/ Brain Injuries, Traumatic - diagnosis
/ Craniocerebral Trauma - blood
/ Craniocerebral Trauma - complications
/ Edema
/ Ethylenediaminetetraacetic acid
/ Female
/ Hematoma
/ Hematoma, Subdural, Chronic - blood
/ Hematoma, Subdural, Chronic - surgery
/ Humans
/ Injuries
/ Male
/ Patients
/ Plasma
/ Surgery
/ Trauma
/ Water
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