{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T03:16:24Z","timestamp":1784258184916,"version":"3.55.0"},"reference-count":79,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2021,10,12]],"date-time":"2021-10-12T00:00:00Z","timestamp":1633996800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAD"],"published-print":{"date-parts":[[2021,10,12]]},"abstract":"<jats:p>Background: Vascular pathology is a common feature in patients with advanced Alzheimer\u2019s disease, with cerebral amyloid angiopathy (CAA) and microvascular changes commonly observed at autopsies and in genetic mouse models. However, despite a plethora of studies addressing the possible impact of CAA on brain vasculature, results have remained contradictory, showing reduced, unchanged, or even increased capillary densities in human and rodent brains overexpressing amyloid-\u03b2 in Alzheimer\u2019s disease and Down\u2019s syndrome. Objective: We asked if CAA is associated with changes in angiogenetic factors or receptors and if so, whether this would translate into morphological alterations in pericyte coverage and vessel density. Methods: We utilized the transgenic mice carrying the Arctic (E693G) and Swedish (KM670\/6701NL) amyloid precursor protein which develop severe CAA in addition to parenchymal plaques. Results: The main finding of the present study was that CAA in Tg-ArcSwe mice is associated with upregulated angiopoietin and downregulated hypoxia-inducible factor. In the same mice, we combined immunohistochemistry and electron microscopy to quantify the extent of CAA and investigate to which degree vessels associated with amyloid plaques were pathologically affected. We found that despite a severe amount of CAA and alterations in several angiogenetic factors in Tg-ArcSwe mice, this was not translated into significant morphological alterations like changes in pericyte coverage or vessel density. Conclusion: Our data suggest that CAA does not impact vascular density but might affect capillary turnover by causing changes in the expression levels of angiogenetic factors.<\/jats:p>","DOI":"10.3233\/jad-210571","type":"journal-article","created":{"date-parts":[[2021,8,24]],"date-time":"2021-08-24T14:14:49Z","timestamp":1629814489000},"page":"1651-1663","source":"Crossref","is-referenced-by-count":15,"title":["Cerebral Amyloid Angiopathy in a Mouse Model of Alzheimer\u2019s Disease Associates with Upregulated Angiopoietin and Downregulated Hypoxia-Inducible Factor"],"prefix":"10.1177","volume":"83","author":[{"given":"Gry H.E. Syverstad","family":"Skaaraas","sequence":"first","affiliation":[{"name":"Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christoffer","family":"Melbye","sequence":"additional","affiliation":[{"name":"Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maja A.","family":"Puchades","sequence":"additional","affiliation":[{"name":"Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Doreen Siu Yi","family":"Leung","sequence":"additional","affiliation":[{"name":"Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"\u00d8yvind","family":"Jacobsen","sequence":"additional","affiliation":[{"name":"Department of Pharmacy, University of Oslo, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shreyas B.","family":"Rao","sequence":"additional","affiliation":[{"name":"Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ole Petter","family":"Ottersen","sequence":"additional","affiliation":[{"name":"Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Trygve B.","family":"Leergaard","sequence":"additional","affiliation":[{"name":"Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Reidun","family":"Torp","sequence":"additional","affiliation":[{"name":"Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","reference":[{"key":"10.3233\/JAD-210571_ref1","unstructured":"Alzheimer\u2019s Disease International (2019) World Alzheimer Report 2019. 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