Results 71 to 80 of about 41,716 (223)

Limbic Structural Alterations and Structural Covariance Across Prodromal Phenotypes and Early Parkinson's Disease

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Non‐motor symptoms may precede motor diagnosis in Parkinson's disease (PD), but whether distinct prodromal phenotypes exhibit differential limbic structural alterations remains unclear. Purpose To investigate limbic structural alterations across prodromal PD phenotypes defined by rapid eye movement sleep behavior disorder (RBD) and ...
Yuanyuan Zhao, Luoyu Wang, Yihan Suo, Maoling Liu, Yi Lin, Lidan Fang, Zhongxiang Ding   +6 more
wiley   +1 more source

CORRELATION BETWEEN MRI-BASED BRAIN VOLUME CHANGES AND COGNITIVE DECLINE IN PATIENTS WITH MILD COGNITIVE IMPAIRMENT: A PROSPECTIVE OBSERVATIONAL STUDY.

Student's Journal of Health Research Africa
Background Mild Cognitive Impairment (MCI) is an intermediate stage between normal cognitive aging and dementia, characterized by subtle cognitive decline.
Karishma Khushalrao Surpam
doaj   +1 more source

Associations of cannabis use, tobacco use and co‐use with brain volume: A systematic review and meta‐analysis

Addiction, EarlyView.
Abstract Background and aims Cannabis is the most widely used illicit drug worldwide and is often co‐used with tobacco, the leading cause of preventable death. Although cannabis and tobacco have distinct neurobiological actions, their associations with brain volumes are unclear.
Katherine Sawyer, Tom P. Freeman, Martine Skumlien, Esther Walton, Thomas Lancaster, Jorien L. Treur, Valentina Lorenzetti, Anna K. M. Blackwell, Chloe Burke, Richie J. Carr, Constantinos Constantinides, Maisie Cox, Sarah Dance, Shadi Daryan, Sorcha Hamilton, Tom Jenkins, Gemma M. J. Taylor   +16 more
wiley   +1 more source

Differential role of entorhinal and hippocampal nerve growth factor in short- and long-term memory modulation

Brazilian Journal of Medical and Biological Research, 2005
We studied the effects of infusion of nerve growth factor (NGF) into the hippocampus and entorhinal cortex of male Wistar rats (250-300 g, N = 11-13 per group) on inhibitory avoidance retention.
Walz R., Roesler R., Reinke A., Martins M.R., Quevedo J., Izquierdo I.   +5 more
doaj  

Combinatorial expression of Lef1, Lhx2, Lhx5, Lhx9, Lmo3, Lmo4, and Prox1 helps to identify comparable subdivisions in the developing hippocampal formation of mouse and chicken

Frontiers in Neuroanatomy, 2014
We carried out a study of the expression patterns of seven developmental regulatory genes (Lef1, Lhx2, Lhx9, Lhx5, Lmo3, Lmo4, and Prox1), in combination with topological position, to identify the medial pallial derivatives, define its major subdivisions,
Antonio eAbellán, Ester eDesfilis, Loreta eMedina   +2 more
doaj   +1 more source

Lewy bodies are surrounded by granulovacuolar degeneration bodies in dementia with Lewy bodies

Brain Pathology, EarlyView.
Here, we report Lewy bodies (LBs) to be enriched for tau‐laden granulovacuolar degeneration bodies (GVBs), suggesting a potential mechanistic interface between α‐synuclein and tau pathology in dementia with Lewy bodies (DLB). Abstract Lewy bodies (LBs), composed primarily of aggregated α‐synuclein (α‐syn), are the pathological hallmark of Lewy body ...
Searlait Thom, Pawel Palmowski, Andrew Porter, Joe O'Neill, Johannes Attems, Laura A. Smith, Viktor I. Korolchuk, Daniel Erskine   +7 more
wiley   +1 more source

Postsynaptic Signals Mediating Induction of Long-Term Synaptic Depression in the Entorhinal Cortex

Neural Plasticity, 2008
The entorhinal cortex receives a large projection from the piriform cortex, and synaptic plasticity in this pathway may affect olfactory processing. In vitro whole cell recordings have been used here to investigate postsynaptic signalling mechanisms that
Saïd Kourrich, Stephen D. Glasgow, Douglas A. Caruana, C. Andrew Chapman   +3 more
doaj   +1 more source

Structural development and dorsoventral maturation of the medial entorhinal cortex

eLife, 2016
We investigated the structural development of superficial-layers of medial entorhinal cortex and parasubiculum in rats. The grid-layout and cholinergic-innervation of calbindin-positive pyramidal-cells in layer-2 emerged around birth while reelin ...
Saikat Ray, Michael Brecht
doaj   +1 more source

Non‐Alzheimer Aβ deposits in the human CNS: Implications with hypoxia and related conditions

Brain Pathology, EarlyView.
An Aβ deposit in a non‐Alzheimer's brain from an individual who experienced hypoxia/energy failure. Abstract We recently reported the deposition of Aβ in the frontal cortex of individuals who died of acute coronavirus disease 2019 (COVID‐19), or who did not have COVID‐19 but had respiratory distress, or infants with severe cardiac malformations.
Esma Karlovich, David S. Priemer, Charles Harker Rhodes, Daniel P. Perl, Kurenai Tanji, James E. Goldman   +5 more
wiley   +1 more source

Clinicopathological and molecular heterogeneity of amyloid‐β in unnatural deaths under 70 years: A forensic autopsy–based study

Brain Pathology, EarlyView.
This study investigates amyloid‐beta (Aβ) pathology in a forensic autopsy cohort of relatively young individuals (40–69 years). Using detailed immunohistochemical analyses of multiple Aβ species, we demonstrate marked regional and molecular heterogeneity, particularly within the striatum.
Shojiro Ichimata, Yukiko Hata, Koji Yoshida, Ryo Tanaka, Shigeo Murayama   +4 more
wiley   +1 more source