Results 111 to 120 of about 86,799 (302)

Mapping Neurodegenerative Changes in Clinically Uncertain Parkinsonian Syndrome Patients Using Fast MR Spin TomogrAphy in Time‐Domain (MR‐STAT) Relaxometry at 3T

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background MR Spin TomogrAphy in Time‐domain (MR‐STAT) enables accelerated multiparametric relaxometry (T1/T2). Previous relaxometry studies predominantly compared Parkinson's disease patients with healthy controls (HC). The potential of relaxometry to distinguish neurodegenerative from non‐neurodegenerative parkinsonism in clinically ...
Martin B. Schilder, Elon D. Wallert, Stefano Mandija, Oscar van der Heide, Hongyan Liu, Miha Fuderer, Edwin Versteeg, Jan Booij, Rob M. A. de Bie, Martijn Beudel, Henk W. Berendse, Tom van Mierlo, Jeroen Blankevoort, Cornelis A. T. van den Berg, Elsmarieke van de Giessen, Alessandro Sbrizzi   +15 more
wiley   +1 more source

Denervation supersensitivity for benzodiazepine receptors in the rat substantia nigra.

, 1981
The injection of kainic acid into the substantia nigra causes, 3 weeks after treatment, a 40% decrease in the total number of binding sites for [3H]diazepam with an increase in the dissociation constant. This decrease was restored to approximately normal
CONCAS, ALESSANDRA, CORDA, MARIA GIUSEPPA, Gessa G.L., Biggio G   +3 more
core  

RESTORATION OF MOTOR AND NON-MOTOR FUNCTIONS BY NEUROTROPHIC FACTORS IN NONHUMAN PRIMATES WITH DOPAMINE DEPLETION [PDF]

, 2013
Parkinson’s disease (PD) is a progressive debilitating neurodegenerative disorder characterized by resting tremor, rigidity, bradykinesia and postural instability. As the disease progresses there is a loss of dopamine (DA) neurons in the substantia nigra
Subramanian, Krishna
core  

Association Between Deep Gray Matter Iron Deposition Dysregulation and Cognitive Performance in Type 2 Diabetes Mellitus Patients: A Quantitative Susceptibility Mapping Study

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Type 2 diabetes (T2DM) heightens cognitive impairment risk, yet the mechanisms remain unclear. Hyperglycemia‐induced iron dysregulation in deep gray matter (DGM) nuclei may be a crucial mechanism. Purpose To investigate DGM iron deposition in T2DM using Quantitative Susceptibility Mapping (QSM) and determine its association with ...
Kun Wang, Jiahe Wang, Ziyu Diao, Xin Tan, Shijun Qiu, Jie An   +5 more
wiley   +1 more source

Fluorescent staining of Caudate Putamen and Substantia Nigra in sIL-6Rα treated mice.

, 2013
Photomicrographs of gp130 and sIL-6R labeling in caudate-putamen (CPu) and Substantia Nigra. (A) Absence of sIL-6R labeling in CPu of no treatment animal; (B) Absence of gp130 labeling in CPu of no treatment animal; (C) Absence of sIL-6R labeling in CPu ...
William A. Banks (314965), Allan Siegel (314966), Youhua Zhu (314963), Ankur Patel (314962), Eldo V. Kuzhikandathil (122402), Steven S. Zalcman (314968)   +5 more
core   +1 more source

Effects of mild running on substantia nigra during early neurodegeneration [PDF]

, 2017
Moderate physical exercise acts at molecular and behavioural levels, such as interfering in neuroplasticity, cell death, neurogenesis, cognition and motor functions.
Fernandes de Almeida, Michael, NC DOCKS at The University of North Carolina at Pembroke   +1 more
core  

Genetic and Pathological Testing Attitudes for Parkinson's Disease in At‐Risk Relatives

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Parkinson's disease (PD) is increasingly recognized as a neurodegenerative disorder with a broad clinical spectrum and diverse biomarkers enabling early detection. α‐synuclein seed amplification assays (SAA) and genetic testing now allow identification of PD pathology in asymptomatic individuals.
Tal Weil, Anat Mirelman, Roy N. Alcalay, Nurit Omer, Penina Ponger, Avner Thaler   +5 more
wiley   +1 more source

Quantitative Assessment of Visible Nigrosome‐1 in Patients with Parkinson's Disease

Movement Disorders Clinical Practice, EarlyView.
Abstract Background The nigrosome‐1 (N1) sign on susceptibility‐weighted imaging (SWI) typically disappears in Parkinson's disease (PD), though some patients can show uni−/bilaterally preserved N1. Objective Investigating whether visible nigrosomes in PD patients differ from those of healthy subjects (HC). Methods Forty‐eight PD and 35 HC underwent 3 T‐
Maria Eugenia Caligiuri, Ilaria Chimento, Marida De Maria, Emma Biondetti, Jolanda Buonocore, Valerio Riccardo Aquila, Maria Celeste Bonacci, Emanuele Tinelli, Umberto Sabatini, Aldo Quattrone, Andrea Quattrone   +10 more
wiley   +1 more source

Transient Receptor Potential Protein (Trp) mRNA Expression in Rat Substantia Nigra [PDF]

, 2000
Substantia nigra neurons produce dopamine in response to cholinergic stimuli that may involve receptor operated Ca²⁺ -entry that has been associated with the transient receptor potential (Trp) proteins.
Sylvester, Jordan
core  

Auditory oddball responses in the human subthalamic nucleus and substantia nigra pars reticulata

Neurobiology of Disease
The auditory oddball is a mainstay in research on attention, novelty, and sensory prediction. How this task engages subcortical structures like the subthalamic nucleus and substantia nigra pars reticulata is unclear.
Dallas Leavitt, Frhan I. Alanazi, Tameem M. Al-Ozzi, Melanie Cohn, Mojgan Hodaie, Suneil K. Kalia, Andres M. Lozano, Luka Milosevic, William D. Hutchison   +8 more
doaj   +1 more source