Results 191 to 200 of about 127,254 (333)

Sleep Alters the Velocity of Physiological Brain Pulsations in Humans

Advanced Science, EarlyView.
Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy, Heta Helakari, Tommi Väyrynen, Zalán Rajna, Niko Huotari, Lauri Raitamaa, Ville Isokoski, Matti Järvelä, Mika Kaakinen, Johanna Piispala, Mika Kallio, Vesa Korhonen, Tapio Seppänen, Vesa Kiviniemi   +13 more
wiley   +1 more source

Inter-scan Reproducibility of Cardiovascular Magnetic Resonance Imaging-Derived Myocardial Perfusion Reserve Index in Women with no Obstructive Coronary Artery Disease [PDF]

, 2018
Ahmed Al-Badri
openalex   +1 more source

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

Advanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon, Kyungchul Noh, Minkyu Hwang, Yoon‐Jung Kim, Unjin Lee, Yeon Joo Ryu, Je‐Kyung Ryu, Sang Beom Jun, Se‐Young Choi, Woo‐Hyun Cho, Sung Joong Lee   +10 more
wiley   +1 more source

Dual-channel high-speed functional photoacoustic microscopy with ultra-wide field of view. [PDF]

Light Sci Appl
Nguyen VT, Taboada C, Delia J, Vu T, Menozzi L, Cho SW, Li J, Jayasundara N, DiSpirito A, Yao J.   +9 more
europepmc   +1 more source

Non-invasive [ ¹⁵ O]H ₂ O PET measurements of cerebral perfusion and cerebrovascular reactivity using an additional heart scan

Mathias Jacobsen Bach, Mia Esta Larsen, Amanda Oliva Kellberg, Alexander Cuculiza Henriksen, Stefan Fuglsang, Inge Lise Rasmussen, Markus Nowak Lonsdale, Mark Lubberink, Lisbeth Marner   +8 more
openalex   +1 more source

Adenosine vs. regadenoson for stress induction in dynamic CT perfusion scan of the myocardium: A single‑center retrospective comparison

, 2023
C. Gibarti, Pavol Murín, Mikuláš Huňavý, Roman Koribský, Lukáš Urban, Martin Studenčan, Péter Gál   +6 more
openalex   +2 more sources

Nanoscale Mapping of the Subcellular Glycosylation Landscape

Advanced Science, EarlyView.
Using multiplexed super‐resolution imaging with fluorophore‐labeled lectins, this study reports intracellular glycosylation at the nanoscale across organelles and synaptic specializations. Extending glycan analysis beyond the cell surface, Glyco‐STORM reveals distinct glycosylation nanodomains in the ER, Golgi, lysosomes, and synaptic sites.
Helene Gregoria Schroeter, Steffen Sass, Mike Heilemann, Thomas Kuner, Maja Klevanski   +4 more
wiley   +1 more source

Contrast-Enhanced Ultrasound (CEUS) Reveals Perfusion of Human Bone in Acute Fracture Healing: A Pilot Study. [PDF]

J Orthop Res
Cadoux-Hudson D, Thomas M, Hurst J, Schranz R, Gerrish A, Wallace K, Warwick D, Carugo D, Stride E, Tilley S, Evans ND.   +10 more
europepmc   +1 more source

Spectral imaging technique for retinal perfusion detection using confocal scanning laser ophthalmoscopy [PDF]

, 2012
Seyed Hossein Rasta, A. Manivannan, Peter F. Sharp   +2 more
openalex   +1 more source

Tailoring Vascular‐Immune Homeostasis via Manganese‐DNA Complex‐Armed Immunogenic Extracellular Vesicles for Pancreatic Cancer Immunotherapy

Advanced Science, EarlyView.
This study demonstrates that Mn2⁺–tumor DNA complexes encapsulated in dendritic cell (DC)– derived immunogenic extracellular vesicles (EVDC@Mn‐DNA) act as a DC‐specific cGAS– STING activator. EVDC@Mn‐DNA treatment enhances intratumoral DC activation, improves tumor vascular function, promotes CD8⁺ T cell activity, and suppresses pancreatic tumor growth,
Xue Jiang, Lihuan Shang, Xiaochun Chen, Xiangzhan Kong, Xiaojuan Wang, Linjia Jiang, Huiying Zhao, Yafeng Zhu, Cheng Huang, Shiyi Deng, Rui Zhang, Minghui Wang, Haoming Lin, Ping‐Pui Wong   +13 more
wiley   +1 more source