ArticleFluids and barriers of the CNS2022
Lysophosphatidic acid as a CSF lipid in posthemorrhagic hydrocephalus that drives CSF accumulation via TRPV4-induced hyperactivation of NKCC1.
Article in Fluids and barriers of the CNS, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
55 citing papers in PubMed, 1 synthesis or guideline pooled it, 78 citations in OpenAlex.
- CSF hypersecretion versus impaired CSF absorption in posthemorrhagic hydrocephalus: a systematic review.Acta neurochirurgica · 2023Pooled it
- Exploring and translating novel approaches targeting the choroid plexus for the treatment of hydrocephalus: a literature review.Fluids and barriers of the CNS · 2026Review
- Lysophosphatidic Acid (LPA) Salivary Species Detection and Whole-mount LPA Receptor Localization in Mouse Salivary Gland.bioRxiv : the preprint server for biology · 2026Article
- Systemic Metabolic Alterations After Aneurysmal Subarachnoid Hemorrhage: A Plasma Metabolomics Approach.Neurocritical care · 2026Article
- Neutrophil-to-lymphocyte ratio and the risk of cerebrospinal fluid diversion after posterior fossa tumor resection in pediatrics.Neurosurgical review · 2026Article
- TRPV4 inhibition as a pharmacotherapy for post-hemorrhagic hydrocephalus.Fluids and barriers of the CNS · 2026Article
- Association between admission serum potassium and quantitative external lumbar drainage responsiveness in patients with hydrocephalus: a retrospective study.Frontiers in neurology · 2026Article
- Cerebrospinal fluid mechanics across CNS barriers: from production, circulation, and clearance to mechanomedicine.Frontiers in neuroscience · 2026Review
- Article
- Multimodal pathomics and clinical features predict postresection permanent hydrocephalus in pediatric medulloblastoma.Journal of neuro-oncology · 2025Article
- Neuroinflammation in an Optimized Model of Lysophosphatidic Acid (LPA)-Induced Post-hemorrhagic Hydrocephalus.Neurochemical research · 2025Article
- The Role of Choroid Plexus in Hydrocephalus from the Perspective of Structure and Function: a Therapeutic Target.Molecular neurobiology · 2025Review
- TRPV4 controls circadian and pathological ocular hypertension.The Journal of physiology · 2025Article
- TRPV4 activation by TGFβ2 enhances cellular contractility and drives ocular hypertension.eLife · 2025Article
- Cranial Ultrasonography-Standards in Diagnosis of Intraventricular Hemorrhage and Ventricular Dilatation in Premature Neonates.Children (Basel, Switzerland) · 2025Review
- The Cerebrospinal Fluid Secretion Rate Increases in Awake and Freely Moving Rats but Differs With Experimental Methodology.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Glucagon-like peptide-1 receptor modulates cerebrospinal fluid secretion and intracranial pressure in rats.Fluids and barriers of the CNS · 2025Article
- Research priorities for non-invasive therapies to improve hydrocephalus outcomes.Fluids and barriers of the CNS · 2025Review
- The NaAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Metabolomic and lipidomic pathways in aneurysmal subarachnoid hemorrhage.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundA range of neurological pathologies may lead to secondary hydrocephalus. Treatment has largely been limited to surgical cerebrospinal fluid (CSF) diversion, as specific and efficient pharmacological options are lacking, partly due to the elusive molecular nature of the CSF secretion apparatus and its regulatory properties in physiology and pathophysiology.
methodsCSF obtained from patients with subarachnoid hemorrhage (SAH) and rats with experimentally inflicted intraventricular hemorrhage (IVH) was analyzed for lysophosphatidic acid (LPA) by alpha-LISA. We employed the in vivo rat model to determine the effect of LPA on ventricular size and brain water content, and to reveal the effect of activation and inhibition of the transient receptor potential vanilloid 4 (TRPV4) ion channel on intracranial pressure and CSF secretion rate. LPA-mediated modulation of TRPV4 was determined with electrophysiology and an ex vivo radio-isotope assay was employed to determine the effect of these modulators on choroid plexus transport.
resultsElevated levels of LPA were observed in CSF obtained from patients with subarachnoid hemorrhage (SAH) and from rats with experimentally-inflicted intraventricular hemorrhage (IVH). Intraventricular administration of LPA caused elevated brain water content and ventriculomegaly in experimental rats, via its action as an agonist of the choroidal transient receptor potential vanilloid 4 (TRPV4) channel. TRPV4 was revealed as a novel regulator of ICP in experimental rats via its ability to modulate the CSF secretion rate through its direct activation of the Na
conclusionsTogether, our data reveal that a serum lipid present in brain pathologies with hemorrhagic events promotes CSF hypersecretion and ensuing brain water accumulation via its direct action on TRPV4 and its downstream regulation of NKCC1. TRPV4 may therefore be a promising future pharmacological target for pathologies involving brain water accumulation.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.