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. 2022 Jul 12;15:927479. doi: 10.3389/fnmol.2022.927479

FIGURE 3.

FIGURE 3

Pathophysiology of motile cilia in hydrocephalus. Abnormal motile cilia can be caused by a variety of reasons. (A) Alcohol abuse may reduce the beating frequency of cilia, resulting in slower CSF flow. (B) Degenerative neuropathologies, such as Alzheimer’s disease, can obstruct the clearance of toxic molecules like Aβ, causing them to accumulate in the ventricle. (C) Furthermore, PCD patients’ ependymal cilia are unable to beat at a regular frequency, which contributes to a disruption in normal CSF circulation. (D) Concussion brain injury also contributes to the rapid shedding of ventricular ependymal cilia and the reduction of CSF flow frequency.