Results 91 to 100 of about 164,310 (312)

Evidence for greater susceptibility of isolated dog cerebral arteries to Ca antagonists than peripheral arteries.

, 1980
In helically-cut strips of dog cerebral, coronary and mesenteric arteries, contracted with prostaglandin (PG) F2 alpha or K+, the addition of verapamil caused a dose-related relaxation.
K Shimizu, T Ohta, N Toda
core   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Anatomical description of the vertebrobasilar and carotid systems forming the cerebral arterial circle in the equine brain

Frontiers in Veterinary Science
IntroductionThe cerebral blood supply in horses is maintained by carotid and vertebrobasilar systems, which join the cerebral arterial circle to ensure continuous brain perfusion.
Ahmad Al Aiyan, Abdulrahman Fahad Alnahdi, Sara Abu Hayah, Arwa Alshamsi, Hessa Alshebli, Sara Aleissaee, Rinsha Balan   +6 more
doaj   +1 more source

The cortical branches of the middle cerebral artery in the otter (Lutra lutra)

Veterinární Medicína, 2012
The cortical branches of the middle cerebral artery in the otter were described using 60 hemispheres. It was demonstrated that the artery is divided into ten permanent branches.
B. Skoczylas, W. Brudnicki, W. Nowicki, K. Kirkillo-Stacewicz, R. Jablonski, J. Wach   +5 more
doaj   +1 more source

Worsening of cerebral hyperemia by the administration of terlipressin in acute liver failure with severe hepatic encephalopathy

, 2004
There is increasing evidence that terlipressin is useful in patients with cirrhosis and hepatorenal syndrome, but there are no data of its use in patients with acute liver failure (ALF) in whom hepatorenal syndrome is common.
Jalan, R., Hayes, P.C., Mookerjee, R.P., Shawcross, D.L., Williams, R., Lee, A., Davies, N.A.   +6 more
core  

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

3D‐Nanoprinted Fluidically Steerable Soft Robotic Microcatheters

Advanced Robotics Research, EarlyView.
This work introduces a ∼3‐French (1 mm‐in‐diameter) soft robotic microcatheter fabricated by means of two‐photon direct laser writing. The 3D‐printed microcatheter enables remote, on‐demand steering via microfluidic actuation for guidewire‐free navigation of vascular networks as well as microcatheter‐mediated delivery of fluidic payloads to target ...
Bailey M. Felix, Molly Carton, Olivia M. Young, Noah Barnes, Jordi T. Andreou, Sarah McHugh, Jack E. McCann, Claudia Davis, Victoria Reddig‐Leiman, Afsah Kamran, Dheeraj Gandhi, Miroslaw Janowski, Jeremy D. Brown, Mark Fuge, Axel Krieger, Clifford R. Weiss, Christopher R. Bailey, Ryan D. Sochol   +17 more
wiley   +1 more source

The Acute Responses of Different-sized Coronary Arteries to Testosterone

, 2012
Coronary arteries supply blood to the myocardium. The blood flow within the coronary arteries is altered by various compounds produced within the body. Sex hormones such as testosterone are known to cause the relaxation of large coronary arteries.
Madanu, Sampath
core  

Potent P2Y receptor mediated contractions in human cerebral arteries

, 2003
BACKGROUND: Extracellular nucleotides play an important role in the regulation of vascular tone and may be involved in cerebral vasospasm after subarachnoidal haemorrhage.
Pendergast, William, Mingyan Hou, Edvinsson, Lars, William Pendergast, Malmsjö, Malin, David Erlinge, Erlinge, David, Lars Edvinsson, Hou, Mingyan, Malin Malmsjö   +9 more
core   +1 more source

Magnetic Micro‐ and Nanorobots for Precision Thrombolysis: Design Strategies and Translational Challenges

Advanced Robotics Research, EarlyView.
Micro‐ and nanorobots for targeted thrombolysis. This perspective elaborates on the clinical indication of blood clot disorders and current limitations for treatment. As a novel, alternative solution, micro‐ and nanorobots can be used to treat and break down thrombi.
Joshua M. Mesfin, Yimo Yan, Nikola Cesarovic, Simone Schuerle   +3 more
wiley   +1 more source