Results 41 to 50 of about 1,348,714 (289)

U-Net Segmented Adjacent Angle Detection (USAAD) for Automatic Analysis of Corneal Nerve Structures

open access: yesData, 2020
Measurement of corneal nerve tortuosity is associated with dry eye disease, diabetic retinopathy, and a range of other conditions. However, clinicians measure tortuosity on very different grading scales that are inherently subjective.
Philip Mehrgardt   +5 more
doaj   +1 more source

Neural Cell Type Diversity in Cnidaria

open access: yesFrontiers in Neuroscience, 2022
Neurons are the fundamental building blocks of nervous systems. It appears intuitive that the human brain is made up of hundreds, if not thousands different types of neurons.
Simon G. Sprecher
doaj   +1 more source

Nerve net differentiation in medusa development of Podocoryne carnea

open access: yesScientia Marina, 2000
The phylum Cnidaria is the most primitive phylum with a well-developed nervous system. Planula larvae and polyps display a diffuse nerve net (plexus), which is densest in the polyp hypostome.
Hans Gröger, Volker Schmid
doaj   +1 more source

Characterization of Parkinson's disease patients using individualized differential structural covariance network

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery
Objective To investigate the individualized differential structural covariance network (IDSCN) in Parkinson's disease (PD) patients, and to examine their correlations with clinical symptoms.
QIN Xue-yan   +5 more
doaj   +1 more source

The Temporal Profiles of Changes in Nerve Excitability Indices in Familial Amyloid Polyneuropathy. [PDF]

open access: yesPLoS ONE, 2015
Familial amyloid polyneuropathy (FAP) caused by a mutation in transthyretin (TTR) gene is an autosomal dominant inherited disorder. The aim of this study is to explore the pathophysiological mechanism of FAP.
Hsing-Jung Lai   +6 more
doaj   +1 more source

Nerve commitment in Hydra. I. Role of morphogenetic signals [PDF]

open access: yes, 1981
The kinetics of nerve commitment during head regeneration in Hydra were investigated using a newly developed assay for committed cells. Committed nerve precursors were assayed by their ability to continue nerve differentiation following explanation of ...
Venugopal, G., David, Charles N.
core   +1 more source

Tentacle morphogenesis in hydra [PDF]

open access: yes, 1990
Differentiation of sensory nerve cells in tentacles of Hydra magnipapillata was investigated using the monoclonal antibody NV1. NV1+ sensory nerve cells form specific complexes with battery cells in tentacles.
Hobmayer, Engelbert   +2 more
core   +3 more sources

Research progress on the association between motor network and nervous system diseases

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery
The motor network is a key system in the central nervous system responsible for motor control and coordination, and its dysfunction is closely associated with various nervous system diseases.
BAO Hong⁃bo   +2 more
doaj   +1 more source

Cnidarian Nerve Nets and Neuromuscular Efficiency [PDF]

open access: yesIntegrative and Comparative Biology, 2015
Cnidarians are considered "nerve net animals" even though their nervous systems include various forms of condensation and centralization. Yet, their broad, two-dimensional muscle sheets are innervated by diffuse nerve nets. Do the motor nerve nets represent a primitive organization of multicellular nervous systems, do they represent a consequence of ...
openaire   +2 more sources

Maintenance and Regeneration of the Nerve Net in Hydra [PDF]

open access: yesAmerican Zoologist, 1988
Description des proprietes et de la dynamique du reseau nerveux. On observe comment ces proprietes sont impliquees dans la maintenance du reseau nerveux dans le contexte de la dynamique du tissu chez l'adulte ainsi que pendant le developpement du reseau nerveux au moment de la regeneration de la ...
H. R. BODE   +4 more
openaire   +1 more source

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