Results 41 to 50 of about 32,786 (240)

Stimulation of Hippocampal Neurogenesis by Transcranial Focused Ultrasound and Microbubbles in Adult Mice [PDF]

open access: yesBrain Stimulation, 2014
Transcranial focused ultrasound (FUS) and microbubble contrast agent, applied at parameters known to transiently increase blood-brain barrier permeability, were tested for the potential to stimulate hippocampal neurogenesis. In adult mice, FUS treatment significantly increased the number of proliferating cells and newborn neurons in the dentate gyrus ...
Tiffany, Scarcelli   +5 more
openaire   +2 more sources

Novel Animal Model of Spontaneous Cerebral Petechial Hemorrhage Using Focused Ultrasound in Rats

open access: yesMedicina, 2022
Background and Objectives: Petechial cerebral hemorrhages can be caused by various factors, such as traumas, cerebral infarctions, and aging, and is related to the disruption of the blood–brain barrier or the cellular damage of blood vessels.
Sang-Youl Yoon   +9 more
doaj   +1 more source

Transducer modeling for accurate acoustic simulations of transcranial focused ultrasound stimulation [PDF]

open access: yesJournal of Neural Engineering, 2020
Abstract Objective . Low-intensity transcranial ultrasound stimulation (TUS) is emerging as non-invasive brain stimulation technique with superior spatial resolution and the ability to reach deep brain areas.
Cristina Pasquinelli   +8 more
openaire   +3 more sources

Mechanistic insights into ultrasonic neurostimulation of disconnected neurons using single short pulses

open access: yesBrain Stimulation, 2022
Ultrasonic neurostimulation is a potentially potent noninvasive therapy, whose mechanism has yet to be elucidated. We designed a system capable of applying ultrasound with minimal reflections to neuronal cultures.
Eyal Weinreb, Elisha Moses
doaj   +1 more source

Three-layer model with absorption for conservative estimation of the maximum acoustic transmission coefficient through the human skull for transcranial ultrasound stimulation

open access: yesBrain Stimulation, 2023
Transcranial ultrasound stimulation (TUS) has been shown to be a safe and effective technique for non-invasive superficial and deep brain stimulation.
David Attali   +15 more
doaj   +1 more source

Design and application of a multimodality-compatible 1Tx/6Rx RF coil for monkey brain MRI at 7T

open access: yesNeuroImage, 2023
Objective: Blood-oxygen-level-dependent functional MRI allows to investigte neural activities and connectivity. While the non-human primate plays an essential role in neuroscience research, multimodal methods combining functional MRI with other ...
Shuxian Qu   +9 more
doaj   +1 more source

Focused ultrasound neuromodulation of the spleen activates an anti-inflammatory response in humans

open access: yesBrain Stimulation, 2023
Focused ultrasound stimulation (FUS) activates mechanosensitive ion channels and is emerging as a method of noninvasive neuromodulation. In preclinical studies, FUS of the spleen (sFUS) activates an anti-inflammatory neural pathway which suppresses acute
Stavros Zanos   +15 more
doaj   +1 more source

Diagnostic ultrasound enhances, then reduces, exogenously induced brain activity of mice

open access: yesFrontiers in Human Neuroscience
Transcranially delivered diagnostic ultrasound (tDUS) applied to the human brain can modulate those brains such that they became more receptive to external stimulation relative to sham ultrasound exposure.
Henry Tan   +10 more
doaj   +1 more source

General‐Purpose Ultrasound Neuromodulation System for Chronic, Closed‐Loop Preclinical Studies in Freely Behaving Rodents

open access: yesAdvanced Science, 2022
Transcranial focused ultrasound stimulation (tFUS) is an effective noninvasive treatment modality for brain disorders with high clinical potential. However, the therapeutic effects of ultrasound neuromodulation are not widely explored due to limitations ...
Yehhyun Jo   +16 more
doaj   +1 more source

A review of the bioeffects of low-intensity focused ultrasound and the benefits of a cellular approach

open access: yesFrontiers in Physiology, 2022
This review article highlights the historical developments and current state of knowledge of an important neuromodulation technology: low-intensity focused ultrasound.
Morgan N. Collins, Karen A. Mesce
doaj   +1 more source

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