Results 111 to 120 of about 1,448,122 (321)

Stereological analysis of cholinergic neurons within bilateral pedunculopontine nuclei in health and when affected by Parkinson's disease

open access: yesBrain Pathology, EarlyView.
(A) PPN‐cholinergic neurons degenerate during PD. We stereologically counted their rostro‐caudal distribution in post‐mortem PPNs in health versus PD. (Bi) Serial PPN‐containing samples were cholinergic antibody‐DAB stained. (Bii) Only DAB‐stained neurons on green lines and inside the box were counted.
Puneet Kumar Sharma   +3 more
wiley   +1 more source

Distribution of catecholamine fibers in the cochlear nucleus of horseshoe bats and mustache bats [PDF]

open access: yes, 1988
The glyoxylic-acid-induced fluorescence technique was applied to demonstrate patterns of catecholaminergic innervation within the auditory brainstem of echolocating bats and the house mouse.
Björklund   +38 more
core   +1 more source

Restored presynaptic synaptophysin and cholinergic inputs contribute to the protective effects of physical running on spatial memory in aged mice

open access: yesNeurobiology of Disease, 2019
The effects of prolonged physical training on memory performance and underlying presynaptic mechanisms were investigated in old C57BL/6 mice. Training via voluntary running wheels was initiated at 16 months of age and continued for 5 months (1 h per day,
Liping Xu   +6 more
doaj  

Late‐onset multiple system atrophy: Neuropathological features associated with slow disease progression

open access: yesBrain Pathology, EarlyView.
Late‐onset multiple system atrophy (LO‐MSA; onset ≥75 years) shows milder degeneration of the striatonigral and olivopontocerebellar systems and serotonergic neurons in the ventrolateral medulla than usual‐age‐onset MSA with a similar disease duration. LO‐MSA may therefore exhibit slower pathological progression.
Misato Ozawa   +13 more
wiley   +1 more source

Simultaneous release of glutamate and acetylcholine from single magnocellular "cholinergic" basal forebrain neurons [PDF]

open access: yes, 2006
Basal forebrain (BF) neurons provide the principal cholinergic drive to the hippocampus and cortex. Their degeneration is associated with the cognitive defects of Alzheimer's disease. Immunohistochemical studies suggest that some of these neurons contain
Abogadie, FC, Allen, TGJ, Brown, DA
core   +1 more source

Independent and additive contribution of white matter hyperintensities and Alzheimer’s disease pathology to basal forebrain cholinergic system degeneration

open access: yesNeuroImage: Clinical, 2023
Objectives: Degeneration of the cholinergic basal forebrain nuclei (CBFN) system has been studied extensively in Alzheimer's disease (AD). White matter hyperintensities are a hallmark of aging as well as a common co-morbidity of AD, but their ...
Christine Kindler   +5 more
doaj  

Multiple functions of precursor BDNF to CNS neurons: negative regulation of neurite growth, spine formation and cell survival

open access: yesMolecular Brain, 2009
Background Proneurotrophins and mature neurotrophins elicit opposite effects via the p75 neurotrophin receptor (p75NTR) and Trk tyrosine kinase receptors, respectively; however the molecular roles of proneurotrophins in the CNS are not fully understood ...
Koshimizu Hisatsugu   +12 more
doaj   +1 more source

Cerebellar defects are a primary pathology in mouse models of spinal muscular atrophy

open access: yesBrain Pathology, EarlyView.
Purkinje cell (PC) degeneration is localized to posterior lobules in the cerebellum, and rescue of survival motor neuron protein expression levels in motor neurons does not ameliorate this effect. Representative images of sagittal cerebellar sections stained with anti‐calbindin in the vermis and hemisphere at P12 for wild type, ChATCre+ rescue (Rescue),
Nicholas C. Cottam   +9 more
wiley   +1 more source

A Local Circuit Model of Learned Striatal and Dopamine Cell Responses under Probabilistic Schedules of Reward [PDF]

open access: yes, 2007
Before choosing, it helps to know both the expected value signaled by a predictive cue and the associated uncertainty that the reward will be forthcoming. Recently, Fiorillo et al.
Bullock, Daniel, Tan, Can Ozan
core   +1 more source

Substitution of natural sensory input by artificial neurostimulation of an amputated trigeminal nerve does not prevent the degeneration of basal forebrain cholinergic circuits projecting to the somatosensory cortex

open access: yesFrontiers in Cellular Neuroscience, 2014
Peripheral deafferentation downregulates acetylcholine (ACh) synthesis in sensory cortices. However the responsible neural circuits and processes are not known.
Celia eHerrera-Rincon   +4 more
doaj   +1 more source

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