Results 51 to 60 of about 52,640 (225)

Fingerprinting heterocellular β-adrenoceptor functional expression in the brain using agonist activity profiles

Frontiers in Molecular Biosciences, 2023
Noradrenergic projections from the brainstem locus coeruleus drive arousal, attentiveness, mood, and memory, but specific adrenoceptor (AR) function across the varied brain cell types has not been extensively characterized, especially with agonists. This
Rachel A. Matt, Frederick G. Westhorpe, Rosemary F. Romuar, Payal Rana, Joel R. Gever, Anthony P. Ford   +5 more
doaj   +1 more source

Post‐LECA Origin and Diversification of an Axonemal Outer Arm Dynein Motor

Cytoskeleton, EarlyView.
ABSTRACT Dyneins were present in the last eukaryotic common ancestor (LECA) and play key roles in eukaryotic biology. Axonemal dyneins form the inner and outer arms that power ciliary beating, and it has long been recognized that outer arms in some organisms contain two different heavy chain motors, whereas those from other species contain a third unit
Stephen M. King
wiley   +1 more source

Adrenergic signalling to astrocytes in anterior cingulate cortex contributes to pain-related aversive memory in rats

Communications Biology, 2023
Chemogenetic and optogenetic profiling in a rat model of acute pain-related unpleasantness suggests that colorectal distention-induced place aversion is mediated by locus coeruleus noradrenergic signalling to astrocytes in anterior cingulate cortex.
Zafar Iqbal, Zhuogui Lei, Aruna S. Ramkrishnan, Shu Liu, Mahadi Hasan, Mastura Akter, Yuk Yan Lam, Ying Li   +7 more
doaj   +1 more source

Altered expression of glutamate signaling, growth factor, and glia genes in the locus coeruleus of patients with major depression. [PDF]

, 2011
Several studies have proposed that brain glutamate signaling abnormalities and glial pathology have a role in the etiology of major depressive disorder (MDD).
Akil, H, Barchas, JD, Bernard, R, Bunney, WE, Jones, EG, Kerman, IA, Myers, RM, Schatzberg, AF, Thompson, RC, Watson, SJ   +9 more
core  

Corticolimbic catecholamines in stress: A computational model of the appraisal of controllability [PDF]

, 2014
Appraisal of a stressful situation and the possibility to control or avoid it is thought to involve frontal-cortical mechanisms. The precise mechanism underlying this appraisal and its translation into effective stress coping (the regulation of ...
Alessandro, Valzania, Cabib, Simona, Emanuele Claudio, Latagliata, Francesco, Mannella, Gianluca, Baldassarre, Marco, Mirolli, PUGLISI ALLEGRA, Stefano, Raymond J., Dolan, Vincenzo G., Fiore   +8 more
core   +2 more sources

Fast cycle of vagus nerve stimulation is associated with increased sleep‐related breathing disorder in patients with epilepsy

Epilepsia, EarlyView.
Abstract Objective This work was undertaken to study the association between vagus nerve stimulation (VNS) parameters and the apnea–hypopnea index (AHI) measured by polysomnography in patients with drug‐resistant epilepsy. Methods Patients with epilepsy who underwent polysomnography with an active VNS device between 2018 and 2023 were retrospectively ...
Jacques‐François Massa, Nada El Youssef, Romain Carron, Pauline Garcia, Agnès Trebuchon, Bernard Giusiano, Fabrice Bartolomei, Angela Marchi, Isabelle Lambert   +8 more
wiley   +1 more source

Hypocretin/orexin influences chronic sleep disruption injury in the hippocampus

Frontiers in Aging Neuroscience, 2022
Chronic sleep disruption is a risk factor for Alzheimer’s disease (AD), yet mechanisms by which sleep disturbances might promote or exacerbate AD are not understood.
Henry Nick, Polina Fenik, Yan Zhu, Sigrid Veasey   +3 more
doaj   +1 more source

The Role of Magnetic Resonance Spectroscopy (MRS), Diffusion‐Tensor‐Imaging (DTI) and Structural MRI in the Alzheimer's Disease and Mild Cognitive Impairment Diagnosis: A Review

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Alzheimer's disease (AD) is one of the most common neurological disorders affecting older adults, with approximately 7.2 million cases only in the United States. This number is projected to increase to 13.8 million in the United States by 2060, leading to increased expenditures for healthcare, long‐term care and hospice services. Consequently,
Valentina Zecca, Gianmauro Palombelli, Nicola Vanacore, Rossella Canese   +3 more
wiley   +1 more source

Locus coeruleus contrast and diffusivity metrics differentially relate to age and memory performance

Scientific Reports
Neurocognitive aging researchers are increasingly focused on the locus coeruleus, a neuromodulatory brainstem structure that degrades with age. With this rapid growth, the field will benefit from consensus regarding which magnetic resonance imaging (MRI)
Ilana J. Bennett, Jason Langley, Andrew Sun, Kitzia Solis, Aaron R. Seitz, Xiaoping P. Hu   +5 more
doaj   +1 more source

The Locus Coeruleus Modulates Intravenous General Anesthesia of Zebrafish via a Cooperative Mechanism

Cell Reports, 2018
Summary: How general anesthesia causes loss of consciousness has been a mystery for decades. It is generally thought that arousal-related brain nuclei, including the locus coeruleus (LC), are involved.
Wen-jie Du, Rong-wei Zhang, Jia Li, Bai-bing Zhang, Xiao-lan Peng, Song Cao, Jie Yuan, Cheng-dong Yuan, Tian Yu, Jiu-lin Du   +9 more
doaj   +1 more source