Keywords: Neurofluids, Stroke, Moyamoya, glymphatic, choroid plexus, cerebrovascular reactivity, CSFThis work applies hypercapnic reactivity and deep-learning techniques to evaluate choroid plexus (ChP) vascular compliance dependence on large arterial patency in intracranial vasculopathy. ChP reactivity was found to be preserved regardless of macrovascular vasculopathy, despite dependencies of resting ChP perfusion on cortical ischemia. Findings support the possibility that changes in resting ChP function in other studies in the presence of arterial vasculopathy and cerebral ischemia may be a response to circulating biochemical markers of ischemic stress, prompting the ChP to attenuate CSF production levels through feedback, rather than vascular mechanisms, to support glial health in ischemia.
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