| First Author | van Veluw SJ | Year | 2020 |
| Journal | Neuron | Volume | 105 |
| Issue | 3 | Pages | 549-561.e5 |
| PubMed ID | 31810839 | Mgi Jnum | J:347782 |
| Mgi Id | MGI:7625804 | Doi | 10.1016/j.neuron.2019.10.033 |
| Citation | van Veluw SJ, et al. (2020) Vasomotion as a Driving Force for Paravascular Clearance in the Awake Mouse Brain. Neuron 105(3):549-561.e5 |
| abstractText | Paravascular drainage of solutes, including beta-amyloid (Abeta), appears to be an important process in brain health and diseases such as Alzheimer's disease (AD) and cerebral amyloid angiopathy (CAA). However, the major driving force for clearance remains largely unknown. Here we used in vivo two-photon microscopy in awake head-fixed mice to assess the role of spontaneous vasomotion in paravascular clearance. Vasomotion correlated with paravascular clearance of fluorescent dextran from the interstitial fluid. Increasing the amplitude of vasomotion by means of visually evoked vascular responses resulted in increased clearance rates in the visual cortex of awake mice. Evoked vascular reactivity was impaired in mice with CAA, which corresponded to slower clearance rates. Our findings suggest that low-frequency arteriolar oscillations drive drainage of solutes. Targeting naturally occurring vasomotion in patients with CAA or AD may be a promising early therapeutic option for prevention of Abeta accumulation in the brain. |
