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Recently, cerebrospinal fluid (CSF) YKL-40 levels were reported to be a promising candidate biomarker of glial inflammation in Alzheimer's disease (AD). To detect how APOE ε4 affects CSF YKL-40 levels in cognitively normal (CN) states, mild cognitive impairment (MCI) and AD dementia, data from 35 CN subjects, 63 patients with MCI, and 11 patients with AD from a cross-sectional study in the Alzheimer's Disease Neuroimaging Initiative (ADNI) database were investigated. The results showed that CSF YKL-40 concentrations were increased in the AD dementia group than in the CN group. CSF YKL-40 levels were higher in APOE ε4 carriers than in noncarriers with MCI. No statistically significant difference was found in CSF YKL-40 levels between APOE ε4 carrier and noncarriers in AD and CN subjects. CSF YKL-40 concentrations were tightly related to CSF tau and p-tau concentrations in the MCI group. Analysis implied that APOE ε4 might affect CSF YKL-40 levels in MCI subjects, suggesting a crucial role of APOE ε4 in neuroinflammation in detecting individuals who might convert to AD from MCI and, thus, as an effective predictive factor.
This article was published in the following journal.
Name: Neuroscience letters
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Discharge of cerebrospinal fluid through a hole through the skull bone most commonly draining from the nose (CEREBROSPINAL FLUID RHINORRHEA) or the ear (CEREBROSPINAL FLUID OTORRHEA).
Proteins in the cerebrospinal fluid, normally albumin and globulin present in the ratio of 8 to 1. Increases in protein levels are of diagnostic value in neurological diseases. (Brain and Bannister's Clinical Neurology, 7th ed, p221)
Tubes inserted to create communication between a cerebral ventricle and the internal jugular vein. Their emplacement permits draining of cerebrospinal fluid for relief of hydrocephalus or other condition leading to fluid accumulation in the ventricles.
Discharge of cerebrospinal fluid through the nose. Common etiologies include trauma, neoplasms, and prior surgery, although the condition may occur spontaneously. (Otolaryngol Head Neck Surg 1997 Apr;116(4):442-9)
Manometric pressure of the CEREBROSPINAL FLUID as measured by lumbar, cerebroventricular, or cisternal puncture. Within the cranial cavity it is called INTRACRANIAL PRESSURE.
Neurology - Central Nervous System (CNS)
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