Skip Nav Destination
Close Modal
Update search
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISSN
- EISSN
- Issue
- Volume
- References
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISSN
- EISSN
- Issue
- Volume
- References
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISSN
- EISSN
- Issue
- Volume
- References
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISSN
- EISSN
- Issue
- Volume
- References
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISSN
- EISSN
- Issue
- Volume
- References
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISSN
- EISSN
- Issue
- Volume
- References
NARROW
Format
Subjects
Article Type
Date
Availability
1-3 of 3
Roxana O. Carare
Close
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Sort by
Articles
Karen Horsburgh, Joanna M. Wardlaw, Tom van Agtmael, Stuart M. Allan, Mike L.J. Ashford, Philip M. Bath, Rosalind Brown, Jason Berwick, M. Zameel Cader, Roxana O. Carare, John B. Davis, Jessica Duncombe, Tracy D. Farr, Jill H. Fowler, Jozien Goense, Alessandra Granata, Catherine N. Hall, Atticus H. Hainsworth, Adam Harvey, Cheryl A. Hawkes, Anne Joutel, Rajesh N. Kalaria, Patrick G. Kehoe, Catherine B. Lawrence, Andy Lockhart, Seth Love, Malcolm R. Macleod, I. Mhairi Macrae, Hugh S. Markus, Chris McCabe, Barry W. McColl, Paul J. Meakin, Alyson Miller, Maiken Nedergaard, Michael O'Sullivan, Terry J. Quinn, Rikesh Rajani, Lisa M. Saksida, Colin Smith, Kenneth J. Smith, Rhian M. Touyz, Rebecca C. Trueman, Tao Wang, Anna Williams, Steven C.R. Williams, Lorraine M. Work
Journal:
Clinical Science
Clin Sci (Lond) (2018) 132 (8): 851–868.
Published: 30 April 2018
Abstract
Cerebral small vessel disease (SVD) is a major contributor to stroke, cognitive impairment and dementia with limited therapeutic interventions. There is a critical need to provide mechanistic insight and improve translation between pre-clinical research and the clinic. A 2-day workshop was held which brought together experts from several disciplines in cerebrovascular disease, dementia and cardiovascular biology, to highlight current advances in these fields, explore synergies and scope for development. These proceedings provide a summary of key talks at the workshop with a particular focus on animal models of cerebral vascular disease and dementia, mechanisms and approaches to improve translation. The outcomes of discussion groups on related themes to identify the gaps in knowledge and requirements to advance knowledge are summarized.
Articles
Theodore P. Criswell, Matthew MacGregor Sharp, Howard Dobson, Ciara Finucane, Roy O. Weller, Ajay Verma, Roxana O. Carare
Journal:
Clinical Science
Clin Sci (Lond) (2017) 131 (22): 2737–2744.
Published: 13 November 2017
Abstract
Dilatation of periarteriolar spaces in MRI of the ageing human brains occurs in white matter (WM), basal ganglia and midbrain but not in cerebral cortex. Perivenous collagenous occurs in periventricular but not in subcortical WM. Here we test the hypotheses that (a) the capacity for dilatation of periarteriolar spaces correlates with the anatomical distribution of leptomeningeal cells coating intracerebral arteries and (b) the regional development of perivenous collagenous in the WM correlates with the population of intramural cells in the walls of veins. The anatomical distribution of leptomeningeal and intramural cells related to cerebral blood vessels is best documented by electron microscopy, requiring perfusion-fixed tissue not available in human material. We therefore analysed perfusion-fixed brain from a 12-year-old Beagle dog as the canine brain represents the anatomical arrangement in the human brain. Results showed regional variation in the arrangement of leptomeningeal cells around blood vessels. Arterioles are enveloped by one complete layer of leptomeninges often with a second incomplete layer in the WM. Venules showed incomplete layers of leptomeningeal cells. Intramural cell expression was higher in the post-capillary venules of the subcortical WM when compared with periventricular WM, suggesting that periventricular collagenosis around venules may be due to a lower resistance in the venular walls. It appears that the regional variation in the capacity for dilatation of arteriolar perivascular spaces in the white WM may be related to the number of perivascular leptomeningeal cells surrounding vessels in different areas of the brain.
Articles
Howard Dobson, Matthew MacGregor Sharp, Richard Cumpsty, Theodore P. Criswell, Tyler Wellman, Ciara Finucane, Jenna M. Sullivan, Roy O. Weller, Ajay Verma, Roxana O. Carare
Journal:
Clinical Science
Clin Sci (Lond) (2017) 131 (22): 2745–2752.
Published: 13 November 2017
Abstract
Although there are no conventional lymphatic vessels in the brain, fluid and solutes drain along basement membranes (BMs) of cerebral capillaries and arteries towards the subarachnoid space and cervical lymph nodes. Convective influx/glymphatic entry of the cerebrospinal fluid (CSF) into the brain parenchyma occurs along the pial-glial BMs of arteries. This project tested the hypotheses that pial-glial BM of arteries are thicker in the midbrain, allowing more glymphatic entry of CSF. The in vivo MRI and PET images were obtained from a 4.2-year-old dog, whereas the post-mortem electron microscopy was performed in a 12-year-old dog. We demonstrated a significant increase in the thickness of the pial-glial BM in the midbrain compared with the same BM in different regions of the brain and an increase in the convective influx of fluid from the subarachnoid space. These results are highly significant for the intrathecal drug delivery into the brain, indicating that the midbrain is better equipped for convective influx/glymphatic entry of the CSF.