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Cerebrospinal fluid volume (CSF volume)
- Target
- CSF volume
- Molecular classification
- Other
01
Overview
Cerebrospinal fluid volume refers to the quantitative amount of CSF present in the ventricles, subarachnoid space, and central canal of the CNS. Normal adult CSF volume ranges from approximately 125–150 mL, but variations occur with age and pathological states including hydrocephalus (increased volume) and cerebral atrophy (age-related increase)[5]. CSF volume is critical for CNS buoyancy, cushioning, metabolic waste clearance, homeostasis, and protection from injury[1][3][4][5][6]. Measurement of CSF volume is clinically important as fluctuations are central to many neurological diagnoses and management strategies[5][7]. However, CSF volume itself is not a molecular entity or direct therapeutic target, but rather a physiological parameter influenced by CSF production, circulation, and absorption mechanisms involving the choroid plexus, ependymal cells, and arachnoid granulations[2][4][5][6].
- Other names
- Cerebrospinal fluid total volumeCSF total volume
02
Mechanism of action
Not applicable (not a molecular target)
03
Biological functions
Measurement of fluid underlying CNS buoyancy, protection, homeostasis, and waste clearance[1][3][4][5][6]Indicator for central nervous system (CNS) health and intracranial pressure[1][3][5]
04
Disease associations
Elevated CSF volume: Hydrocephalus[5]Decreased CSF volume: Intracranial hypotension, cerebral atrophy[1][5]Associated with neurodegenerative diseases (by abnormalities in glymphatic system or clearance)[1][3][4]
05
Safety considerations
Abnormal CSF volume can indicate or cause serious CNS pathology, e.g., raised intracranial pressure (ICP), brain herniation[5][1]Excess or deficit is associated with headache, neurological compromise, and risk for long-term disability[1][5]
06
Biomarkers
Used diagnostically via imaging or lumbar puncture to assess CNS conditions[5][7]CSF pressure, composition
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