Results 71 to 80 of about 52,640 (225)

In Vivo Mapping of Catecholaminergic Loss and Iron Deposition in Huntington's Disease

Movement Disorders, EarlyView.
Abstract Background The pathophysiology of Huntington's disease (HD) remains obscure. Magnetic resonance imaging (MRI) can reveal in vivo molecular changes related to disease pathology. Objectives To investigate catecholaminergic neuronal integrity and subcortical brain iron accumulation in HD employing neuromelanin‐sensitive MRI, and quantitative ...
Edoardo R. de Natale, Heather Wilson, Efstratios Karavasilis, Athanasia Liozidou, Chrisoula Kartanou, Georgios Velonakis, Jens Kuhle, Ioannis Zalonis, Georgia Karadima, Leonidas Stefanis, Georgios Koutsis, Marios Politis   +11 more
wiley   +1 more source

Norepinephrine release in the cerebellum contributes to aversive learning

Nature Communications, 2023
The modulation of dopamine release from midbrain projections to the striatum has long been demonstrated in reward-based learning, but the synaptic basis of aversive learning is far less characterized.
Adrien T. Stanley, Michael R. Post, Clay Lacefield, David Sulzer, Maria Concetta Miniaci   +4 more
doaj   +1 more source

Aberrant Beta‐Band Network Alteration Preceding Freezing of Gait in Parkinson's Disease

Movement Disorders, EarlyView.
Abstract Background Freezing of gait (FOG) is a debilitating motor symptom observed in the advanced stages of Parkinson's disease (PD), characterized by an abrupt inability to initiate or continue forward walking. Whole‐brain functional connectivity analysis has shown promise in elucidating the underlying pathophysiology and identifying potential ...
Yanqiu Tian, Elie Matar, Shlomo Berkovsky, Simon J.G. Lewis   +3 more
wiley   +1 more source

Molecular and Functional Sex Differences of Noradrenergic Neurons in the Mouse Locus Coeruleus

Cell Reports, 2018
Summary: Preclinical work has long focused on male animals, though biological sex clearly influences risk for certain diseases, including many psychiatric disorders.
Bernard Mulvey, Dionnet L. Bhatti, Sandeep Gyawali, Allison M. Lake, Skirmantas Kriaucionis, Christopher P. Ford, Michael R. Bruchas, Nathaniel Heintz, Joseph D. Dougherty   +8 more
doaj   +1 more source

A distinct neuromelanin magnetic resonance imaging pattern in parkinsonian multiple system atrophy

BMC Neurology, 2020
Background Parkinsonian variant of multiple system atrophy is a neurodegenerative disorder frequently misdiagnosed as Parkinson’s disease. No early imaging biomarkers currently differentiate these disorders.
Rita Moiron Simões, Ana Castro Caldas, Joana Grilo, Daisy Correia, Carla Guerreiro, Patrícia Pita Lobo, Anabela Valadas, Marguerita Fabbri, Leonor Correia Guedes, Miguel Coelho, Mario Miguel Rosa, Joaquim J. Ferreira, Sofia Reimão   +12 more
doaj   +1 more source

When the Scale Drops: Pathways to Weight Loss in Parkinson's Disease and Future Directions

Movement Disorders, EarlyView.
Abstract Although Parkinson's disease (PD) is classically defined by its motor features, non‐motor symptoms exert a substantial and often under‐recognized influence on disease trajectory. Among these, weight loss has long been observed in PD and other neurodegenerative disorders, yet the mechanisms remain incompletely understood.
Ellie D. Gabriel, Robert S. Eisinger, Joyce M. Lee, Sarah Hamimi, Hope Kim, Susanna D. Howard, Casey H. Halpern   +6 more
wiley   +1 more source

Repetitive Transcranial Electrical Stimulation Induces Quantified Changes in Resting Cerebral Perfusion Measured from Arterial Spin Labeling

Neural Plasticity, 2018
The use of transcranial electrical stimulation (TES) as a method to augment neural activity has increased in popularity in the last decade and a half. The specific application of TES to the left prefrontal cortex has been shown to produce broad cognitive
Matthew S. Sherwood, Aaron T. Madaris, Casserly R. Mullenger, R. Andy McKinley   +3 more
doaj   +1 more source

ASL Metabolically Regulates Tyrosine Hydroxylase in the Nucleus Locus Coeruleus

Cell Reports, 2019
Summary: Patients with germline mutations in the urea-cycle enzyme argininosuccinate lyase (ASL) are at risk for developing neurobehavioral and cognitive deficits. We find that ASL is prominently expressed in the nucleus locus coeruleus (LC), the central
Shaul Lerner, Elmira Anderzhanova, Sima Verbitsky, Raya Eilam, Yael Kuperman, Michael Tsoory, Yuri Kuznetsov, Alexander Brandis, Tevie Mehlman, Ram Mazkereth, Robert McCarter, Menahem Segal, Sandesh C.S. Nagamani, Alon Chen, Ayelet Erez, Fabienne Dietrich Alber, Talin Babikian, Heidi Bender, Christopher Boys, David Breiger, Corinna Buerger, Peter Burgard, Mina Nguyen-Driver, Benjamin Goodlett, Elizabeth Kerr, Casey Krueger, Eva Mamak, Jacqueline H. Sanz, David Schwartz, Susan Caudle, Arianna Stefanos, Rachel Tangen, Magdalena Walter, Susan Waisbren, Greta Wilkening   +34 more
doaj   +1 more source

Insights into the role of noradrenaline in effortful decisions.

PLoS Biology, 2022
To maintain homeostasis, our brain tracks the effort exerted during decision-making. A new study in PLOS Biology shows that the activity of noradrenergic neurons in the locus coeruleus (LC) reflects the effort exerted to face cognitive or physical ...
Kristin Kaduk, Fadila Hadj-Bouziane
doaj   +1 more source

Early affective changes and increased connectivity in preclinical Alzheimer's disease. [PDF]

, 2018
IntroductionAffective changes precede cognitive decline in mild Alzheimer's disease and may relate to increased connectivity in a "salience network" attuned to emotionally significant stimuli.
Bilgel, Murat, Brown, Jesse A, Fredericks, Carolyn A, Hua, Alice Y, Resnick, Susan M, Seeley, William W, Sturm, Virginia E, Wong, Dean F   +7 more
core   +1 more source