Results 71 to 80 of about 139,730 (337)

Evolutionary changes leading to efficient glymphatic circulation in the mammalian brain

Nature Communications
The functional significance of the morphological and genetic changes that occurred in the brain during evolution is not fully understood. Here we show the relationships between evolutionary changes of the brain and glymphatic circulation.
Narufumi Kameya, Itsuki Sakai, Kengo Saito, Toshihide Hamabe-Horiike, Yohei Shinmyo, Mitsutoshi Nakada, Satoru Okuda, Hiroshi Kawasaki   +7 more
doaj   +1 more source

Fractal Analysis of Retinal Vessels and their Relationship with Cerebral Microcirculation Pathology – A Narrative Review

Applied Medical Informatics, 2020
One of the most reliable in vivo examination methods of human microvasculature is represented by ophthalmoscopy. Due to ophthalmoscopy, retinal circulation can reveal multiple morphological details that can serve as diagnosis biomarkers for retinal ...
Adriana Elena Bulboacă, Paul Mihai BOARESCU   +1 more
doaj  

Unilateral Antegrade Cerebral Perfusion versus Deep Hypothermic Circulatory Arrest during Acute Aortic Dissection Repair: A Single Center Experience

Acta Clinica Croatica, 2022
Introduction: The gold standard of circulation strategy and arterial cannulation during acute aortic dissection is still indisputable. Unilateral/bilateral antegrade cerebral perfusion (UACP/BACP) and deep hypothermic circulatory arrest (HCA) remains a
Mehmet Karaçalılar, Mugisha Kyaruzi
doaj  

Features of Cerebral Hemorrhage in the Victims of Peaceful Territory and Fighters of the Operation of the Combined Forces – of the Antiterrorist Operation After Traumatic Brain Injury of Mild Severity in Acute, Intermediate and Distant Periods

Львівський клінічний вісник, 2020
Introduction. Craniocerebral trauma determines its place among the priority areas of modern clinical neurology. Brain injuries along with dystrophic processes cause disorders of cerebral hemodynamics and vascular tone, which are significant and are ...
V. Shevaga, M. Semchyshyn, B. Zadorozhna, A. Zadorozhny   +3 more
doaj   +1 more source

Denoising method for dynamic contrast-enhanced CT perfusion studies using three-dimensional deep image prior as a simultaneous spatial and temporal regularizer [PDF]

arXiv, 2022
This study aimed to propose a denoising method for dynamic contrast-enhanced computed tomography (DCE-CT) perfusion studies using a three-dimensional deep image prior (DIP), and to investigate its usefulness in comparison with total variation (TV)-based methods with different regularization parameter (alpha) values through simulation studies.
arxiv  

Assessing the Safety Margin for Micromotion‐Induced Strain at Electrode–Tissue Interface: A Finite Element Analysis via COMSOL

Advanced Materials Interfaces, EarlyView.
Brain movement significantly impacts the biocompatibility of neural probes due to continuous strain on neural tissue. This study examines strain profiles across various brain models and movement types, challenging the 5% damage threshold at the electrode–tissue interface.
Ali Sharbatian, Akhilesh Kamtikar, Danesh Ashouri Vajari, Thomas Stieglitz   +3 more
wiley   +1 more source

Muscle‐Derived Small Extracellular Vesicles Mediate Exercise‐Induced Cognitive Protection in Chronic Cerebral Hypoperfusion

Advanced Science, EarlyView.
sEVs have a critical role in orchestrating interorgan crosstalk and mediating exercise‐induced therapeutic effects. Lin et al. demonstrates that sEVs miR‐17/20a‐5p mediates the muscle‐brain crosstalk and emphasizes the central role of mTOR signaling in executing molecular programs that can protect brain health in response to exercise. Abstract Physical
Huawei Lin, Lianhua Yin, Weilin Liu, Rui Li, Tao Jiang, Minguang Yang, Yajun Cao, Sinuo Wang, Yan Yu, Cong Chen, Xiaoqin Guo, Wenju Wang, Huanhuan Liu, Yaling Dai, Jiamin Yan, Yanting Lin, Yanyi Ding, Chendong Ruan, Lei Yang, Tiecheng Wu, Jing Tao, Lidan Chen   +21 more
wiley   +1 more source

Deep Learning-based Segmentation of Cerebral Aneurysms in 3D TOF-MRA using Coarse-to-Fine Framework [PDF]

arXiv, 2021
BACKGROUND AND PURPOSE: Cerebral aneurysm is one of the most common cerebrovascular diseases, and SAH caused by its rupture has a very high mortality and disability rate. Existing automatic segmentation methods based on DLMs with TOF-MRA modality could not segment edge voxels very well, so that our goal is to realize more accurate segmentation of ...
arxiv  

The cerebral circulation

BJA CEPD Reviews, 2001
important in the body because arrest of the circulation for 5 min can cause neuronal death. In order to optimise the delivery of oxygen and metabolic substrates to the brain, anaesthetists need a clear understanding of the anatomy of the cerebral circulation and CSF pathways, the physiology of the cerebral circulation and the effects of anaesthesia ...
openaire   +2 more sources

The Reconstruction of Peripheral Auditory Circuit: Recent Advances and Future Challenges

Advanced Science, EarlyView.
This paper summarizes the potential of biomaterials, stem cells, and gene editing technologies in the regeneration of inner ear hair cells, spiral ganglion neurons, and inner ear organoids. Challenges and potential developments are discussed and explored.
Zhe Li, Ying Zhang, Zhenyu Xiao, Jieyu Qi   +3 more
wiley   +1 more source