Results 71 to 80 of about 39,698 (257)

Myelin Basic Protein and Cardiac Sympathetic Neurodegeneration in Nonhuman Primates

Neurology Research International, 2021
Minimal myelination is proposed to be a contributing factor to the preferential nigral neuronal loss in Parkinson’s disease (PD). Similar to nigral dopaminergic neurons, sympathetic neurons innervating the heart have long, thin axons which are ...
Jeanette M. Metzger, Helen N. Matsoff, Don Vu, Alexandra D. Zinnen, Kathryn M. Jones, Viktoriya Bondarenko, Heather A. Simmons, Colleen F. Moore, Marina E. Emborg   +8 more
doaj   +1 more source

A chloride channel in rat and human axons [PDF]

, 1991
Current recordings from single chloride channels were obtained from excised and cell-attached patches of rat and human axons. In rat axons the channels showed an outwardly rectifying current-voltage relationship with a slope conductance of 33 pS at ...
Baker, Blatz, Chiu, Connors, Franciolini, Franciolini, Gögelein, Hamill, Hille, Inoue, Jonas, Jonas, Lukács, M. Strupp, Owen, P. Grafe, Robinson, Shukla, Welsh, Yamamoto   +19 more
core   +1 more source

Bioprinted Excitable Tissues with Multistimulation Systems for Promoting Function and Maturation

Advanced NanoBiomed Research, EarlyView.
This review provides an overview of stimulation strategies used to enhance the functional maturation of bioprinted excitable tissues. It addresses key limitations in physiological performance of bioprinted excitable tissues, outlines major stimulation modalities—including electrical, mechanical, optical, magnetic, ultrasound, and hybrid—and examines ...
Uijung Yong, Jinseon Park, Jinah Jang
wiley   +1 more source

Simulation of intrafascicular and extraneural nerve stimulation [PDF]

, 1988
A model of nerve stimulation for control of muscle contraction and ensuing isometrical muscle force has been developed and implemented in a simulation algorithm.
Alste, Jan A. van, Boom, Herman B.K., Veltink, Peter H.   +2 more
core   +2 more sources

A Cost‐Effective Hybrid Method For Homogeneous Matrix Coating in Matrix‐Assisted Laser Desorption/Ionization Mass Spectrometry Imaging Using Simultaneous Spin and Spray Deposition

Analysis &Sensing, EarlyView.
This study introduces an in‐house spin coater for matrix‐assisted laser desorption/ionization mass spectrometry imaging, providing homogeneous matrix deposition via simultaneous spray and spin. The approach yields reproducible signals and clear metabolite distributions in complex tissues.
Lanaia Ítala Louzeiro Maciel, Jussara Valente Roque, Almir Custodio Batista Junior, Gabriel Henry Morais Dufrayer, Naará da Silva Balbino, Keilah Valéria Naves Cavalcante, Marcos Divino Ferreira Junior, Andrea Rodrigues Chaves, Boniek Gontijo Vaz   +8 more
wiley   +1 more source

Prostaglandin D2 Synthase Controls Schwann Cells Metabolism and Peripheral Myelin Homeostasis [PDF]

Glia
Prostaglandin D2 Synthase (L‐PGDS) controls PPNS myelin lipids’ composition and Schwann cells energetic metabolism In the absence of L‐PGDS Schwann cells turn to acetate as the main energetic source. These metabolic changes result in ketone bodies production to preserve neuronal survival.
Trimarco A, Audano M, La Marca R, Pellegatta M, Canevazzi P, Cariello M, Falco M, Pedretti S, Imperato G, Cestaro A, Podini P, Dina G, Quattrini A, Massimino L, Caruso D, Mitro N, Taveggia C.   +16 more
europepmc   +2 more sources

Aberrant Molecular Myelin Architecture in Charcot-Marie-Tooth Disease Type 1A and Hereditary Neuropathy With Liability to Pressure Palsies. [PDF]

Glia
PMP22 copy number variation disrupts myelin architecture at SLIs and Nodes of Ranvier. Adherens junction and axoglial domain defects are often more severe in CMT1A than HNPP. Findings support PMP22 functioning as a structural organizer of myelin. ABSTRACT Charcot–Marie–Tooth Disease Type 1A (CMT1A) and Hereditary Neuropathy with Liability to Pressure ...
Moss KR, Arowolo MA, Gutierrez DR, Höke A.   +3 more
europepmc   +2 more sources

Solitary electromechanical pulses in Lobster neurons

, 2016
Investigations of nerve activity have focused predominantly on electrical phenomena. Nerves, however, are thermodynamic systems, and changes in temperature and in the dimensions of the nerve can also be observed during the action potential.
Budvytyte, Rima, Gonzalez-Perez, Alfredo, Heimburg, Thomas, Jackson, Andrew D., Mosgaard, Lars D., Villagran-Vargas, Edgar   +5 more
core   +1 more source

Why do axons differ in caliber? [PDF]

, 2012
CNS axons differ in diameter (d) by nearly 100-fold (∼0.1-10 μm); therefore, they differ in cross-sectional area (d(2)) and volume by nearly 10,000-fold.
Balasubramanian, Vijay, Mugnaini, Enrico, Niven, Jeremy, Perge, János A, Sterling, Peter   +4 more
core   +2 more sources

Bioimaging of sense organs and the central nervous system in extant fishes and reptiles in situ: A review

The Anatomical Record, EarlyView.
Bioimaging of the sense organs and brain of fishes and reptiles. Left panel: 3D reconstruction of the head and brain of the deep‐sea viperfish Chauliodus sloani following diceCT. Right panel: A 3D reconstruction of a 70‐day‐old embryo head of the bearded dragon Pogona vitticeps following diceCT, showing the position of the segmented brain within the ...
Shaun P. Collin, Kara E. Yopak, Jenna M. Crowe‐Riddell, Victoria Camilieri‐Asch, Caroline C. Kerr, Hope Robins, Myoung Hoon Ha, Annalise Ceddia, Travis L. Dutka, Lucille Chapuis   +9 more
wiley   +1 more source