Cerebrospinal Fluid Protein Concentrations in Hydrocephalus

CSF protein levels are altered in neurological disorders, such as hydrocephalus of different etiologies. In this retrospective observational study, we analyzed cerebrospinal fluid (CSF) samples in hydrocephalic diseases such as aqueductal stenosis (AQS, <i>n</i> = 27), normal pressure hy...

Full description

Bibliographic Details
Main Authors: Florian Wilhelmy, Matthias Krause, Stefan Schob, Andreas Merkenschlager, Robin Wachowiak, Wolfgang Härtig, Jürgen Meixensberger, Janina Gburek-Augustat, Tim Wende
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Children
Subjects:
Online Access:https://www.mdpi.com/2227-9067/10/4/644
_version_ 1797605962477993984
author Florian Wilhelmy
Matthias Krause
Stefan Schob
Andreas Merkenschlager
Robin Wachowiak
Wolfgang Härtig
Jürgen Meixensberger
Janina Gburek-Augustat
Tim Wende
author_facet Florian Wilhelmy
Matthias Krause
Stefan Schob
Andreas Merkenschlager
Robin Wachowiak
Wolfgang Härtig
Jürgen Meixensberger
Janina Gburek-Augustat
Tim Wende
author_sort Florian Wilhelmy
collection DOAJ
description CSF protein levels are altered in neurological disorders, such as hydrocephalus of different etiologies. In this retrospective observational study, we analyzed cerebrospinal fluid (CSF) samples in hydrocephalic diseases such as aqueductal stenosis (AQS, <i>n</i> = 27), normal pressure hydrocephalus (NPH, <i>n</i> = 24), hydrocephalus communicans (commHC, <i>n</i> = 25) and idiopathic intracranial hypertension (IIH)/pseudotumor cerebri (PC, <i>n</i> = 7) in comparison with neurological patients without hydrocephalic configuration (control, <i>n</i> = 95). CSF was obtained through CSF diversion procedures and lumbar punction and analyzed for protein concentrations according to the institution’s laboratory standards. We found significantly decreased CSF protein levels in patients suffering from AQS (0.13 mg/dL [0.1–0.16 mg/dL] <i>p</i> = 2.28 × 10<sup>−8</sup>) and from PC (0.18 mg/dL [0.12–0.24 mg/dL] <i>p</i> = 0.01) compared with controls (0.34 mg/dL [0.33–0.35 mg/dL]). Protein levels were not altered in patients suffering from commHC and NPH compared with neurologically healthy individuals. We propose that a decrease in CSF protein levels is part of an active counterregulatory mechanism to lower CSF volume and, subsequently, intracranial pressure in specific diseases. Research regarding said mechanism and more specific proteomic research on a cellular level must still be performed to prove this hypothesis. Differences in protein levels between different diseases point to different etiologies and mechanisms in different hydrocephalic pathologies.
first_indexed 2024-03-11T05:08:34Z
format Article
id doaj.art-e99ef49cacc24e2ca574f19525bcf3ea
institution Directory Open Access Journal
issn 2227-9067
language English
last_indexed 2024-03-11T05:08:34Z
publishDate 2023-03-01
publisher MDPI AG
record_format Article
series Children
spelling doaj.art-e99ef49cacc24e2ca574f19525bcf3ea2023-11-17T18:45:42ZengMDPI AGChildren2227-90672023-03-0110464410.3390/children10040644Cerebrospinal Fluid Protein Concentrations in HydrocephalusFlorian Wilhelmy0Matthias Krause1Stefan Schob2Andreas Merkenschlager3Robin Wachowiak4Wolfgang Härtig5Jürgen Meixensberger6Janina Gburek-Augustat7Tim Wende8Department of Neurosurgery, University Hospital Leipzig, Liebigstrasse 20, 04103 Leipzig, GermanyDepartment of Neurosurgery, University Hospital Leipzig, Liebigstrasse 20, 04103 Leipzig, GermanyDivision of Neuroradiology, University Hospital Leipzig, Liebigstrasse 20, 04103 Leipzig, GermanyDepartment of Childrens and Adolescence Health, Division of Neuropediatrics, University Hospital Leipzig, Liebigstrasse 20, 04103 Leipzig, GermanyDepartment of Pediatric Surgery, University Hospital Leipzig, Liebigstrasse 20, 04103 Leipzig, GermanyPaul-Flechsig-Insitute for Brain Research, Liebigstraße 19, 04103 Leipzig, GermanyDepartment of Neurosurgery, University Hospital Leipzig, Liebigstrasse 20, 04103 Leipzig, GermanyDepartment of Childrens and Adolescence Health, Division of Neuropediatrics, University Hospital Leipzig, Liebigstrasse 20, 04103 Leipzig, GermanyDepartment of Neurosurgery, University Hospital Leipzig, Liebigstrasse 20, 04103 Leipzig, GermanyCSF protein levels are altered in neurological disorders, such as hydrocephalus of different etiologies. In this retrospective observational study, we analyzed cerebrospinal fluid (CSF) samples in hydrocephalic diseases such as aqueductal stenosis (AQS, <i>n</i> = 27), normal pressure hydrocephalus (NPH, <i>n</i> = 24), hydrocephalus communicans (commHC, <i>n</i> = 25) and idiopathic intracranial hypertension (IIH)/pseudotumor cerebri (PC, <i>n</i> = 7) in comparison with neurological patients without hydrocephalic configuration (control, <i>n</i> = 95). CSF was obtained through CSF diversion procedures and lumbar punction and analyzed for protein concentrations according to the institution’s laboratory standards. We found significantly decreased CSF protein levels in patients suffering from AQS (0.13 mg/dL [0.1–0.16 mg/dL] <i>p</i> = 2.28 × 10<sup>−8</sup>) and from PC (0.18 mg/dL [0.12–0.24 mg/dL] <i>p</i> = 0.01) compared with controls (0.34 mg/dL [0.33–0.35 mg/dL]). Protein levels were not altered in patients suffering from commHC and NPH compared with neurologically healthy individuals. We propose that a decrease in CSF protein levels is part of an active counterregulatory mechanism to lower CSF volume and, subsequently, intracranial pressure in specific diseases. Research regarding said mechanism and more specific proteomic research on a cellular level must still be performed to prove this hypothesis. Differences in protein levels between different diseases point to different etiologies and mechanisms in different hydrocephalic pathologies.https://www.mdpi.com/2227-9067/10/4/644cerebrospinal fluidCSF proteinhydrocephalusintracranial pressureaqueductal stenosisnormal pressure hydrocephalus
spellingShingle Florian Wilhelmy
Matthias Krause
Stefan Schob
Andreas Merkenschlager
Robin Wachowiak
Wolfgang Härtig
Jürgen Meixensberger
Janina Gburek-Augustat
Tim Wende
Cerebrospinal Fluid Protein Concentrations in Hydrocephalus
Children
cerebrospinal fluid
CSF protein
hydrocephalus
intracranial pressure
aqueductal stenosis
normal pressure hydrocephalus
title Cerebrospinal Fluid Protein Concentrations in Hydrocephalus
title_full Cerebrospinal Fluid Protein Concentrations in Hydrocephalus
title_fullStr Cerebrospinal Fluid Protein Concentrations in Hydrocephalus
title_full_unstemmed Cerebrospinal Fluid Protein Concentrations in Hydrocephalus
title_short Cerebrospinal Fluid Protein Concentrations in Hydrocephalus
title_sort cerebrospinal fluid protein concentrations in hydrocephalus
topic cerebrospinal fluid
CSF protein
hydrocephalus
intracranial pressure
aqueductal stenosis
normal pressure hydrocephalus
url https://www.mdpi.com/2227-9067/10/4/644
work_keys_str_mv AT florianwilhelmy cerebrospinalfluidproteinconcentrationsinhydrocephalus
AT matthiaskrause cerebrospinalfluidproteinconcentrationsinhydrocephalus
AT stefanschob cerebrospinalfluidproteinconcentrationsinhydrocephalus
AT andreasmerkenschlager cerebrospinalfluidproteinconcentrationsinhydrocephalus
AT robinwachowiak cerebrospinalfluidproteinconcentrationsinhydrocephalus
AT wolfganghartig cerebrospinalfluidproteinconcentrationsinhydrocephalus
AT jurgenmeixensberger cerebrospinalfluidproteinconcentrationsinhydrocephalus
AT janinagburekaugustat cerebrospinalfluidproteinconcentrationsinhydrocephalus
AT timwende cerebrospinalfluidproteinconcentrationsinhydrocephalus