Results 21 to 30 of about 43,516 (333)

Giant Tumefactive Perivascular Spaces

Radiology, 2023
Perivascular spaces are parts of the glymphatic pathway in the brain, which are microscopic but visible on magnetic resonance imaging when enlarged. Here, we described a case of a 16-year-old boy who presented with chronic headaches. Magnetic resonance imaging revealed giant perivascular spaces in the right centrum semiovale.
Dhairya A. Lakhani, Joe Joseph
openaire   +5 more sources

Quantitative analysis of macroscopic solute transport in the murine brain

Fluids and Barriers of the CNS, 2021
Background Understanding molecular transport in the brain is critical to care and prevention of neurological disease and injury. A key question is whether transport occurs primarily by diffusion, or also by convection or dispersion.
Lori A. Ray, Martin Pike, Matthew Simon, Jeffrey J. Iliff, Jeffrey J. Heys   +4 more
doaj   +1 more source

Evaluation of Glymphatic System Using Diffusion MR Technique in T2DM Cases

Frontiers in Human Neuroscience, 2020
Objective: We aimed to evaluate the activity of the human glymphatic system in type 2 diabetes mellitus (T2DM) using diffusion tensor image analysis along with the perivascular space (DTI-ALPS).Methods: Diffusion tensor images were acquired to calculate ...
Guangwei Yang, Nan Deng, Yi Liu, Yingjiang Gu, Xiang Yao   +4 more
doaj   +1 more source

The elusive brain perivascular fibroblast: a potential role in vascular stability and homeostasis

Frontiers in Cardiovascular Medicine, 2023
In the brain, perivascular fibroblasts (PVFs) reside within the perivascular spaces (PVSs) of arterioles and large venules, however their physiological and pathophysiological roles remain largely unknown.
Maria J. Sosa, Andy Y. Shih, Andy Y. Shih, Andy Y. Shih, Stephanie K. Bonney   +4 more
doaj   +1 more source

Mesenchymal perivascular cells in immunity and disease [PDF]

, 2020
International audienceThe mesenchymal microenvironment is increasingly recognized as a major player in immunity. Here we focus on mesenchymal cells located within or in proximity to the blood vessels wall, which include pericytes, adventitial fibroblasts
Benabid, Adam, Peduto, Lucie
core   +1 more source

Modeling fluid flow in perivascular networks [PDF]

, 2022
Flow of cerebrospinal fluid in perivascular spaces is one of the key mechanisms underlying the brain clearance processes. While experimental studies have demonstrated net flow along the perivascular space, the mechanisms involved remain disputed. We have
Vegard Vinje, Kent-André Mardal, Marie E. Rognes, Cécile Daversin-Catty, Ingeborg Gjerde   +4 more
core   +1 more source

Perivascular radiolucent line during recanalization of superficial femoral artery

Radiology Case Reports, 2021
During the recanalization of chronic total occlusions in the superficial femoral artery, severe calcification adds technical difficulty in guidewire crossing due to poor ultrasound visualization and uncontrollable guidewire manipulation.
Yuya Koike, MD, Yuichiro Kawahara, MD, Ryo Izubuchi, MD, Hideyuki Iwaki, MD, PhD   +3 more
doaj   +1 more source

In Vivo Dynamic Movement of Polymerized Amyloid β in the Perivascular Space of the Cerebral Cortex in Mice [PDF]

, 2022
Disposition of amyloid β (Aβ) into the perivascular space of the cerebral cortex has been recently suggested as a major source of its clearance, and its disturbance may be involved in the pathogenesis of cerebral amyloid angiopathy and Alzheimer’s ...
Shinobu Minatani, Hirayoshi, Yoko, Yoshiaki Itoh, Mino, Toshikazu, Itoh, Yoshiaki, Akitoshi Takeda, Hasegawa, Itsuki, Takeda, Akitoshi, Itsuki Hasegawa, Minatani, Shinobu, Toshikazu Mino, Yoko Hirayoshi   +11 more
core   +1 more source

The Significance and Mechanism of Cerebral Enlarged Perivascular Space in Amyotrophic Lateral Sclerosis. [PDF]

Int J Mol Sci
Enlarged perivascular spaces (EPVS) are MRI markers of impaired glymphatic clearance and have been associated with neurodegenerative diseases. However, their clinical significance in amyotrophic lateral sclerosis (ALS) and underlying mechanisms remain ...
Lee BC, Kuo YC, Cheng LF, Tsai YC, Huang JZ, Tsai HH, Lin JS, Huang PY, Ting CH, Yang CC, Lai HJ, Chao CC, Tsai LK.   +12 more
europepmc   +2 more sources

Impaired Cerebrovascular Reactivity in Huntington’s Disease

Frontiers in Physiology, 2021
There is increasing evidence that impairments of cerebrovascular function and/or abnormalities of the cerebral vasculature might contribute to early neuronal cell loss in Huntington’s disease (HD).
Suk Tak Chan, Nathaniel D. Mercaldo, Kenneth K. Kwong, Steven M. Hersch, Herminia D. Rosas, Herminia D. Rosas   +5 more
doaj   +1 more source