Results 51 to 60 of about 302,258 (333)

Phase waves of local depolarization in biological tissues object speckle fields. Fundamental and applied aspects

Journal of Innovative Optical Health Sciences
Our goal was to develop and experimentally validate a polarization-interference method for phase scanning of laser speckle fields generated by diffuse layers of birefringent biological tissues.
Yurii Ushenko, Alexander Ushenko, Alexander Dubolazov, Mykhaylo Gorsky, Irina Soltys, Olexandra Litvinenko, Victor Bachinsky, Ivan Mikirin, Olexander Salega, Ivan Garasim, Jun Zheng, Lin Bin   +11 more
doaj   +1 more source

SIRT4 positively regulates autophagy via ULK1, but independently of HDAC6 and OPA1

FEBS Open Bio, EarlyView.
Cells expressing SIRT4 (H161Y), a catalytically inactive mutant of the sirtuin SIRT4, fail to upregulate LC3B‐II and exhibit a reduced autophagic flux under stress conditions. Interestingly, SIRT4(H161Y) promotes phosphorylation of ULK1 at S638 and S758 that are associated with inhibition of autophagy initiation.
Isabell Lehmkuhl, Khawar Amin, Lydia Gabriel, Nils Hampel, Afshin Iram, Julia Hesse, Constanze Wiek, Jasmin Thuy Vy Nguyen, Helmut Hanenberg, Jürgen Scheller, M. Reza Ahmadian, Björn Stork, Doreen M. Floss, Roland P. Piekorz   +13 more
wiley   +1 more source

Integrated Signaling Network Involving Calcium, Nitric Oxide, and Active Oxygen Species but Not Mitogen-Activated Protein Kinases in BcPG1-Elicited Grapevine Defenses

Molecular Plant-Microbe Interactions, 2006
We have already reported the identification of the endopolygalacturonase 1 (BcPG1) from Botrytis cinerea as a potent elicitor of defense responses in grapevine, independently of its enzymatic activity.
Elodie Vandelle, Benoît Poinssot, David Wendehenne, Marc Bentéjac, Alain Pugin   +4 more
doaj   +1 more source

Metformin promotes mitochondrial integrity through AMPK‐signaling in Leber's hereditary optic neuropathy

FEBS Open Bio, EarlyView.
Metformin mediates mitochondrial quality control in Leber's hereditary optic neuropathy (LHON) fibroblasts carrying mtDNA mutations. At therapeutic levels, metformin activates AMPK signaling to restore mitochondrial dynamics by promoting fusion and restraining fission, while preserving mitochondrial mass, enhancing autophagy/mitophagy and biogenesis ...
Chatnapa Panusatid, Rapasviranda Soiyangsuk, Maneeluck Tanadjindarat, Chayanon Peerapittayamongkol   +3 more
wiley   +1 more source

Decreased Serum 5‐HT: Clinical Correlates and Regulatory Role in NMJ of MG

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Although 5‐Hydroxytryptamine (5‐HT) indirectly stimulates muscle contraction and participates in regulating Acetylcholine receptor (AChR) cluster homeostasis in cellular, animal, and clinical studies, evidence regarding its potential to modulate muscle contraction in myasthenia gravis (MG) remains limited.
Xinru Shen, Jing Zhang, Xinyue Zhou, Xiaoxiao Yu, Haodong Shang, Shufan Chen, Lulu Zhen, Jinru Wu, Guanlian Hu, Xiaoyan Zhu, Zhan Sun, Yiren Wang, Jiahui Wang, Jie Lv, Xue Zhao, Yingna Zhang, Wei Guo, Ying Peng, Feng Gao   +18 more
wiley   +1 more source

Age‐Related Characteristics of SYT1‐Associated Neurodevelopmental Disorder

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We describe the clinical manifestations and developmental abilities of individuals with SYT1‐associated neurodevelopmental disorder (Baker‐Gordon syndrome) from infancy to adulthood. We further describe the neuroradiological and electrophysiological characteristics of the condition at different ages, and explore the associations ...
Sam G. Norwitz, Josefine Eck, Joel S. Winston, Kate Baker   +3 more
wiley   +1 more source

Research of the process of thermal depolarization of ferroelectric ceramics (Pb, Sr)(Zr, Ti)O3 [PDF]

Технологія та конструювання в електронній апаратурі, 2011
The article presents the results of X-ray, microstructural and piezoelectric researches of ferroelectric ceramics samples based on solid solution (Pb0,95Sr0,05)(Zr0,58Ti0,42)O3, subjected to annealing.
D. V. Kuzenko, A. I. Bazhin, V. A. Stupak, M. G. Kisel, V. V. Dorofeeva, I. M. Starshinov, A. E. Pokintelitsa   +6 more
doaj   +1 more source

Depolarization of Light in Optical Fibers: Effects of Diffraction and Spin-Orbit Interaction

Fibers, 2021
Polarization is measured very often to study the interaction of light and matter, so the description of the polarization of light beams is of both practical and fundamental interest.
Nikolai I. Petrov
doaj   +1 more source

Quantitative nucleotide level analysis of regulation of translation in response to depolarization of cultured neural cells [PDF]

, 2017
Studies on regulation of gene expression have contributed substantially to understanding mechanisms for the long-term activity-dependent alterations in neural connectivity that are thought to mediate learning and memory.
Dalal, Jasbir S, Dougherty, Joseph D, Lake, Allison M, O\u27Brien, David R, Sapkota, Darshan, Yang, Chengran   +5 more
core   +2 more sources

Enhanced Switching Performance in Single‐Crystalline PbTiO3 Ferroelectric Memristors for Replicating Synaptic Plasticity

Advanced Functional Materials, EarlyView.
This study demonstrated single‐crystalline PbTiO3‐based memristors with atomically sharp interfaces, well‐ordered lattices, and minimal lattice mismatch. The devices exhibited an ON/OFF ratio exceeding 105, high stability, and rich resistance‐state modulation.
Haining Li, Zhiqiang Liao, Risa Kataoka, Md Sarker Shamim, Takeshi Kijima, Hiroyasu Yamahara, Hitoshi Tabata, Munetoshi Seki   +7 more
wiley   +1 more source