Results 51 to 60 of about 36,787 (207)

Morpho‐Anatomical and HPTLC Investigations of Lysimachia nummularia L. (Primulaceae) Grown in Switzerland

open access: yesMicroscopy Research and Technique, EarlyView.
This research provides a complete morphoanatomical description of Lysimachia nummularia, as well as a HPTLC profile. Standard techniques of light and scanning electron microscopies, as well as standard techniques of HPTLC, were used. ABSTRACT Primulaceae are distributed all over the world, encompassing around 2590 species.
Carolina Sabedotti   +9 more
wiley   +1 more source

Evidence for possible interactions between PLP and DM20 within the myelin sheath

open access: yes, 2002
PLP and its smaller DM20 isoform constitute the major proteins of CNS myelin. Previous studies indicated a role for the proteins in maintaining the intraperiod line of the myelin sheath and the integrity of axons and suggested that both isoforms were ...
Hunter, DJB   +13 more
core   +1 more source

Ndrg1 in development and maintenance of the myelin sheath

open access: yesNeurobiology of Disease, 2011
CMT4D disease is a severe autosomal recessive demyelinating neuropathy with extensive axonal loss leading to early disability, caused by mutations in the N-myc downstream regulated gene 1 (NDRG1). NDRG1 is expressed at particularly high levels in the Schwann cell (SC), but its physiological function(s) are unknown.
Rosalind H.M. King   +14 more
openaire   +3 more sources

Alterations in brain metabolites in rats with experimental periodontitis: A metabolomic approach

open access: yesJournal of Periodontology, EarlyView.
Abstract Background Periodontitis (PD) is a chronic inflammatory disease with systemic effects. Emerging evidence suggests a link between periodontal inflammation and neurological changes, but the biochemical mechanisms in key brain regions, such as the hippocampus and amygdala, remain unclear.
Ramona Ramalho de Souza Pereira   +9 more
wiley   +1 more source

Lysosome Evanescence Mediates Autophagic Flux Impairment in Glucose Imbalanced Environments

open access: yesThe Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Schwann cells (SCs) support axonal function and promote nerve regeneration. This study investigated how various glucose concentrations influence SC viability, oxidative stress, and autophagy, which contribute to diabetic neuropathy. RSC96 SCs were cultured under five glucose conditions (0, 2.5, 5.5, 50, or 100 mM) for 24, 48, and 72 h.
Yuan‐Chen Cheng   +6 more
wiley   +1 more source

Myelin sheath survival following axonal degeneration in doubly myelinated nerve fibers

open access: yes, 1991
Axonal contact plays a critical role in initiating myelin formation by Schwann cells. However, recent studies of “double myelination” have indicated that myelin maintenance continues in Schwann cells completely displaced from physical contact with the ...
JW Heath, GJ Kidd
core   +1 more source

Transcranial Pulse Stimulation Enhances Dexterity in Parkinson's Disease: A Randomized Sham‐Controlled Trial

open access: yesMovement Disorders, EarlyView.
Abstract Background Ultrasound‐based neuromodulation, capable of reaching deep brain areas with high precision, represents cutting‐edge technology in non‐invasive brain stimulation and is investigated as a novel treatment for neurological and psychiatric disorders, including Parkinson's disease (PD).
Eva Matt   +14 more
wiley   +1 more source

Mesoscale Whole‐Brain T2*‐Weighted and Associated Quantitative MRI in Humans at 10.5 T

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To demonstrate mesoscale whole‐brain T2*‐weighted (T2*w) MRI at 10.5 T, quantify R2* relaxation rate and magnetic susceptibility (χ), and evaluate T2*w contrast at such high field strength. Methods Multi‐echo GRE (ME‐GRE) data were collected in healthy adults at 0.5 mm isotropic resolution at 10.5 T.
Jiaen Liu   +15 more
wiley   +1 more source

Investigating the Sensitivity of the Diffusion MRI Signal to Magnetization Transfer and Permeability via Monte‐Carlo Simulations

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Magnetization transfer (MT) and water exchange via permeability operate on a similar spatiotemporal scale to water diffusion. In this study, we use a simulation‐based approach to characterize how MT and permeability impact (1) diffusion‐weighted MRI (dMRI) measurements from cylindrical substrates and (2) parameter estimation using a ...
Zhiyu Zheng   +3 more
wiley   +1 more source

The structural and functional integrity of peripheral nerves depends on the glial-derived signal desert hedgehog

open access: yes, 2006
We show that desert hedgehog ( dhh), a signaling molecule expressed by Schwann cells, is essential for the structural and functional integrity of the peripheral nerve.
Umehara, F   +6 more
core  

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