Results 91 to 100 of about 282,480 (358)

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

The diagnostic performance of transcranial Doppler ultrasound and carotid duplex in the diagnosis of cerebral small vessel disease

The Egyptian Journal of Radiology and Nuclear Medicine
Background and rationale Cerebral small vessel disease is a frequent, long-term, and progressing vascular disease accounting for twenty percent of whole strokes and twenty-five percent of ischemic strokes.
Afaf Mohamed, Sara Gamal, Sama Ayman, Hatem El-Azizi   +3 more
doaj   +1 more source

Effects of pyruvate administration on infarct volume and neurological deficits following permanent focal cerebral ischemia in rats [PDF]

, 2003
Recent experimental evidences indicate that pyruvate, the final metabolite of glycolysis, has a remarkable protective effect against different types of brain injury.
Candelario-Jalil, Eduardo, Garcia-Cabrera, Michel, Gonzalez-Falcon, Armando, Leon, Olga S.   +3 more
core  

Integrin α8‐Mediated Pericyte Morphogenesis Controls Blood‐Brain Barrier Integrity

Advanced Science, EarlyView.
This study highlights that ITGA8 impacts pericyte morphology and function, both crucial for BBB integrity, via RhoA/ROCK signaling, thus influencing TGF‐β1 activation through cytoskeletal tension and ECM interactions. Notably, in post‐ischemic recovery models, ITGA8 deficiency exacerbates vascular dysfunction by impairing pericyte‐mediated BBB ...
Chang‐Xiong Gong, Lin‐Lin Hu, Ling Jiang, Pei‐Xia Shi, Shuang Zhang, Yuan Zhao, Bing‐Qiao Wang, Xiao‐Feng Cheng, Cheng‐Kang He, Sen Lin, Yue Dai, Zhao‐You Meng, Chen‐Hao Zhao, Bao‐Liang Sun, Qi Xie, Fang‐Fei Li, Qing‐Wu Yang   +16 more
wiley   +1 more source

Doppler ultrasound hemodynamic assessment in preeclampsia

Medical Journal of Babylon, 2018
Background: Preeclampsia (PE) is the main factor in maternal mortality across the world, affecting 5%–8% of pregnant women. The impairment in placental perfusion due to vascular abnormalities leads to clinical presentations and is detectable by Doppler ...
Azad Saleem Hassan, Maysaloon Shaman Saeed   +1 more
doaj   +1 more source

NARFL Knockout Triggers Ferroptosis‐Driven Vascular Endothelial Dysfunction

Advanced Science, EarlyView.
NARFL is vital for CIA and oxidative stress resistance. NARFL deletion in HPMEC cells, zebrafish, and mice is lethal and rescued by a Ferroptosis inhibitor. NARFL deficiency disrupted its interaction with CIA proteins, decreased aconitase activity, increased IRP1 activity, induced Fe overload, and led to ferroptosis and oxidative stress, resulting in ...
Hui Hu, Jing Luo, Li Yu, Daoxi Qi, Boyu Li, Yating Chen, Chen Wang, Xiaokang Zhang, Wenzheng Guo, Qiyong Lou, Gang Zhai, Yonglin Ruan, Jianfei Huang, Shengchi Shi, Zhan Yin, Fang Zheng   +15 more
wiley   +1 more source

ARTERIAL SUPPLY OF THE CEREBRAL CORTEX IN CATTLE (Bos primigenius f. dom.)

Slovenian Veterinary Research, 2016
Studies of the vascularization of the cerebrum in cattle were performed on 60 cerebral hemispheres received from a meat-processing plant in Bydgoszcz, Poland. The sex of the cattle was not determined.
Benedykt Skoczylas, Witold Brudnicki, Krzysztof Kirkiłło-Stacewicz, Włodzimierz Nowicki, Jan Wach   +4 more
doaj   +1 more source

ATF5‐Dependent GDF15 Expression Mediates Anesthesia‐Induced Neuroprotection Against Stroke

Advanced Science, EarlyView.
Anesthesia‐induced preconditioning protects against perioperative stroke. By manipulating ATF5 in excitatory neurons, it is shown that anesthesia‐driven ATF5 upregulation activates the mitochondrial unfolded protein response (UPRmt) and elevates GDF15 expression.
Xianshu Ju, Tao Zhang, Jianchen Cui, Yulim Lee, Suho Lee, Ho Min Kim, Boohwi Hong, Jiho Park, Chul Hee Choi, Hyon‐Seung Yi, Jun Young Heo, Woosuk Chung   +11 more
wiley   +1 more source

Quantitative evaluation using single-photon emission computed tomography with acetazolamide is reliable for preoperative evaluation before cardiac surgery in severe carotid intracranial artery stenotic and/or occlusive disease: a case report

Journal of Cardiothoracic Surgery, 2019
Background Severe carotid and intracranial artery stenosis disease (CIAD) is major risk for perioperative stroke in coronary artery bypass grafting. Then, preoperative risk assessment is quite important.
Eiki Tayama, Ryusuke Mori, Tomohiro Ueda, Ken-ichi Imasaka, Yukihiro Tomita, Shigeki Morita   +5 more
doaj   +1 more source

Dissociation of Cerebral Blood Flow and Femoral Artery Blood Pressure Pulsatility After Cardiac Arrest and Resuscitation in a Rodent Model: Implications for Neurological Recovery. [PDF]

, 2020
Background Impaired neurological function affects 85% to 90% of cardiac arrest (CA) survivors. Pulsatile blood flow may play an important role in neurological recovery after CA.
Akbari, Yama, Bazrafkan, Afsheen, Choi, Bernard, Crouzet, Christian, Lee, Donald, Tromberg, Bruce J, Wilson, Robert H   +6 more
core   +1 more source