Results 91 to 100 of about 374,471 (348)

New experimental model of acute aqueductal blockage in cats: effects on cerebrospinal fluid pressure and the size of brain ventricles [PDF]

, 2009
It is generally assumed that cerebrospinal fluid (CSF) is secreted in the brain ventricles, and so after an acute blockage of the aqueduct of Sylvius an increase in the ventricular CSF pressure and dilation of isolated ventricles may be expected. We have
Božić, Borka, Bulat, Marin, Butković, Vjera, Klarica, Marijan, Orešković, Darko, Vukić, Miroslav   +5 more
core   +1 more source

Laser Ultrasound Super‐Resolution Imaging for Multi‐Parametric Non‐Invasive Volumetric Characterization of Brain Cancer

Advanced Science, EarlyView.
Laser ultrasound super‐resolution imaging (LUSSI) leverages laser‐generated ultrasound for functional 3D transcranial imaging of brain tumor vasculature. Combined with optoacoustic tomography, it is demonstrated in a glioblastoma model, revealing structural abnormalities, compressed vessels, hemorrhages, and hypoxic regions.
Daniil Nozdriukhin, Yi Chen, Shuxin Lyu, Daniel Razansky, Xosé Luís Deán‐Ben   +4 more
wiley   +1 more source

Ocular Ultrasonography: A Useful Instrument in Patients with Trauma Brain Injury in Emergency Service

Emergency Medicine International, 2019
The measurement of the optic nerve sheath by ocular ultrasonography might be an indirect method to assess the quickly increase of the intracranial pressure in patients with moderate trauma brain injury, taking into account that an important proportion of
Julie Natalie Jimenez Restrepo, Oscar Javier León, Leonardo Alexander Quevedo Florez   +2 more
doaj   +1 more source

Microstructured Thin Film Nitinol for a Neurovascular Flow-Diverter [PDF]

, 2016
A cerebral aneurysm occurs as a result of a weakened blood vessel, which allows blood to flow into a sac or a ballooned section. Recent advancement shows that a new device, ‘flow-diverter’, can divert blood flow away from the aneurysm sac.
Chen, Yanfei, Cheon, Seongsik, Chun, Youngjae, Howe, Connor, Lee, Yongkuk, Yeo, Woon-Hong   +5 more
core   +2 more sources

Potentiating Cerebral Perfusion Normalizes Glymphatic Dynamics in Systemic Inflammation

Advanced Science, EarlyView.
LPS‐induced systemic inflammation increases glymphatic influx but delays cervical lymphatic drainage, accompanied by AQP4 depolarization and impaired glymphatic clearance. Enhancing cerebral blood flow via the inotropic agent levosimendan effectively restored AQP4 polarization, improving glymphatic flux and amyloid‐β clearance.
Ruoyu Zhao, Bin Sun, Pengju Wei, Yingying Sun, Qianyan He, Kejia Zhang, Jun Lu, Shoujun Zhu, Yi Yang, Zhenni Guo   +9 more
wiley   +1 more source

Effects of local hypothermia-rewarming on physiology, metabolism and inflammation of acutely injured human spinal cord. [PDF]

, 2020
In five patients with acute, severe thoracic traumatic spinal cord injuries (TSCIs), American spinal injuries association Impairment Scale (AIS) grades A-C, we induced cord hypothermia (33 °C) then rewarming (37 °C).
A Bricolo, A Mizuma, A Schubert, C Hochstim, DW Marion, GL Clifton, GV Varsos, HA Choi, I Phang, I Phang, JR Bethea, K Chatzipanteli, K Chatzipanteli, KL Carpenter, L Zhu, M Dididze, M Erecinska, MC Werndle, MC Werndle, MJ Gallagher, PE Batchelor, PJ Andrews, PJ Hutchinson, RR Hansebout, S Chen, S Saadoun, S Shibuya, SR Lewis, TP Lo Jr.   +28 more
core   +1 more source

Astrocytic PERK Deficiency Drives Prefrontal Circuit Dysfunction and Depressive‐Like Behaviors

Advanced Science, EarlyView.
Chen et al. show that the endoplasmic reticulum (ER) stress sensor PERK is downregulated in prefrontal cortex (PFC) astrocytes in major depressive disorder and in chronic‐stress mouse models. In young mice, astrocyte‐specific PERK loss reduces the synaptogenic cue thrombospondin‐1 (TSP1), leading to synaptic and circuit deficits and depressive‐like ...
Kai Chen, Riya Gupta, Yosuke M. Morizawa, Yu Qin, Xingyu Du, Cynthia Pang, Osama Al‐Dalahmah, Maura B. Dupont, Guang Yang   +8 more
wiley   +1 more source

Ultrafine Molybdenum Wire Braided Neurointerventional Implants: Bridging Biodegradability and Neurovascular Safety for Stroke Treatment

Advanced Science, EarlyView.
Molybdenum (Mo), with its unique strength, uniform corrosion, and radiopacity, enables innovative biodegradable implants for transformative stroke therapy. Abstract Neurovascular implants for stroke intervention face a critical dilemma: permanent devices (e.g., nitinol stents, platinum coils) often trigger chronic inflammation and recurrence, whereas ...
Yunong Shen, Yiming Huang, Yang Zhang, Chunhao Yu, Hanqi Liu, Dong Bian, Di Wu, Wu Wang, Xunming Ji, Yufeng Zheng, Miaowen Jiang, Ming Li   +11 more
wiley   +1 more source

Aquaporin-4 and brain edema. [PDF]

, 2007
Aquaporin-4 (AQP4) is a water-channel protein expressed strongly in the brain, predominantly in astrocyte foot processes at the borders between the brain parenchyma and major fluid compartments, including cerebrospinal fluid (CSF) and blood.
A Lehmenkuhler, Alan S. Verkman, AS Verkman, AS Verkman, D Wenzel, DK Binder, DK Binder, DK Binder, DS Prough, GT Manley, H Wen, HJ Reulen, HK Kimelberg, I Klatzo, I Roberts, J Badaut, J Hu, J Li, J Li, JE Rash, JE Rash, K Oshio, KI Auguste, M Amiry-Moghaddam, M Amiry-Moghaddam, M Elkjaer, Marios C. Papadopoulos, MC Papadopoulos, MC Papadopoulos, MC Papadopoulos, NR Saunders, O Bloch, P Agre, P Padmawar, PM Rodier, S Nielsen, S Saadoun, S Saadoun, T Ma   +38 more
core   +2 more sources

An Active, Multimodal Neural Interface for Real‐Time Monitoring of Cortical Electrical, Thermal, and Optical Dynamics

Advanced Science, EarlyView.
A chronically implantable neural interface enables real‐time multimodal monitoring of electrical, thermal, and photodynamic activities. Incorporating silicon‐based transistor arrays with a functional multiplexing strategy and resistive sensors, the device delivers high‐fidelity recordings with long‐term stability and biocompatibility.
Jiahao Li, Yifei Lu, Zhongzheng Li, Lu Jin, Lianjie Zhou, Ke Ding, Junhan Liu, Bofan Hu, Pengchuan Liu, Dongqi An, Fuying Liang, Yuhang Hu, Yuting Shao, Yifan Ding, Lichao Ma, Rui Li, Yongfeng Mei, Rongjun Zhang, Enming Song   +18 more
wiley   +1 more source