Results 51 to 60 of about 29,874 (272)

The Marr and Albus Theories of the Cerebellum: Two Eary Models of Associative Memory [PDF]

open access: yes, 1989
The Marr and Albus theories of the cerebellum are compared and contrasted. They are shown to be similar in their analysis of the function of the mossy fibers, granule cells, Golgi cells, and Purkinje cells.
Albus, James S.
core   +1 more source

Geochemical support for a climbing habit within the Paleozoic seed fern genus Medullosa [PDF]

open access: yes, 2011
A long-standing problem in paleobotany is the accurate identification of the growth habits and statures of fossil plants. Tissue-specific analysis of stable carbon isotope ratios in plant fossils can provide an independent perspective on this issue ...
Fischer, Woodward W.   +1 more
core   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Calcium Imaging Reveals Coordinated Simple Spike Pauses in Populations of Cerebellar Purkinje Cells

open access: yesCell Reports, 2016
The brain’s control of movement is thought to involve coordinated activity between cerebellar Purkinje cells. The results reported here demonstrate that somatic Ca2+ imaging is a faithful reporter of Na+-dependent “simple spike” pauses and enables us to ...
Jorge E. Ramirez, Brandon M. Stell
doaj   +1 more source

Afferent convergence to a shared population of interneuron AMPA receptors

open access: yesNature Communications, 2023
Precise alignment of pre- and postsynaptic elements optimizes the activation of glutamate receptors at excitatory synapses. Nonetheless, glutamate that diffuses out of the synaptic cleft can have actions at distant receptors, a mode of transmission ...
Reagan L. Pennock   +4 more
doaj   +1 more source

Anti-Inflammatory activity of a polyphenolic extract from Arabidopsis thaliana in in vitro and in vivo models of Alzheimer's Disease [PDF]

open access: yes, 2019
Alzheimer's disease (AD) is the most common neurodegenerative disorder and the primary form of dementia in the elderly. One of the main features of AD is the increase in amyloid-beta (Aβ) peptide production and aggregation, leading to oxidative stress ...
Casale, Assunta Maria   +10 more
core   +1 more source

Differential Maturation of Climbing Fiber Innervation in Cerebellar Vermis [PDF]

open access: yesThe Journal of Neuroscience, 2004
Folding of the brain surface is a general morphological adaptation to maximize surface area in a limited cranial volume. Surface folding is present not only in the neocortex but also in the cerebellar cortex. This folding creates subdivisions of the cortical surface: the sulci, the gyri, and the straight bank region, which is interposed.
Hiroshi, Nishiyama, David J, Linden
openaire   +2 more sources

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

The compartmental restriction of cerebellar interneurons

open access: yesFrontiers in Neural Circuits, 2013
The Purkinje cells of the cerebellar cortex are subdivided into multiple different phenotypes that form an elaborate array of parasagittal stripes. This array serves as a scaffold around which afferent topography is organized.
G. Giacomo eConsalez, Richard eHawkes
doaj   +1 more source

Metabotropic Glutamate Receptor Activation in Cerebelar Purkinje Cells as Substrate for Adaptive Timing of the Classicaly Conditioned Eye Blink Response [PDF]

open access: yes, 1995
To understand how the cerebellum adaptively times the classically conditioned nictitating membrane response (NMR), a model of the metabotropic glutamate receptor (mGluR) second messenger system in cerebellar Purkinje cells is constructed.
Bullock, Daniel   +2 more
core   +1 more source

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