Results 91 to 100 of about 287,774 (303)

Internal Motility in Stiffening Actin-Myosin Networks

, 2003
We present a study on filamentous actin solutions containing heavy meromyosin subfragments of myosin II motor molecules. We focus on the viscoelastic phase behavior and internal dynamics of such networks during ATP depletion.
A. G. Weeds, C. F. Schmidt, D. Wachsstock, F. G. Schmidt, J. A. Spudich, J. Howard, P. Detmers, S. J. Kron, S. J. Kron, S. S. Margossian, T. Nishizaka   +10 more
core   +1 more source

Auditory Hair Cell Mechanotransduction Channels Dynamically Shape the Mechanical Properties of Their Membrane Environment

Advanced Science, EarlyView.
This work shows, for the first time, that the stereocilia membrane in cochlear hair cells is dynamically regulated by the mechanotransduction channel to impact the membrane mechanical properties. This work provides direct evidence that the opening and closing associated with the MET channel is regulating the membrane viscosity suggesting that the MET ...
Shefin S. George, Anthony J. Ricci
wiley   +1 more source

Wearable and Implantable Devices for Continuous Monitoring of Muscle Physiological Activity: A Review

Advanced Science, EarlyView.
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao, Ata Golparvar, Mohammad Javad Bathaei, Filipe Arroyo Cardoso, Clementine M. Boutry   +4 more
wiley   +1 more source

Geometrically Encoded Positioning of Introns, Intergenic Segments, and Exons in the Human Genome

Advanced Science, EarlyView.
This study introduces a new hypothesis: exons, introns, and intergenic segments are non‐random projections of the functional layers of 3D structure of chromatin packing domains. Evidence is presented that this “geometric code” may encode volumetric structure, reconciling epigenetic patterns, correlates with oncogenic mutations, acting as a potential ...
Luay M. Almassalha, Kyle L. MacQuarrie, Marcelo Carignano, Cody L. Dunton, Ruyi Gong, Joe Ibarra, Lucas M. Carter, Wing Shun Li, Rikkert Nap, Parambir S. Dulai, Igal Szleifer, Vadim Backman   +11 more
wiley   +1 more source

Chromosome movement in lysed mitotic cells is inhibited by vanadate. [PDF]

, 1978
Mitotic PtK1 cells, lysed at anaphase into a carbowax 20 M Brij 58 solution, continue to move chromosomes toward the spindle poles and to move the spindle poles apart at 50% in vivo rates for 10 min.
CANDE, W. Zacheus, Wolniak, S
core   +1 more source

Skeletal Muscle HSF1 Alleviates Age‐Associated Sarcopenia and Mitochondrial Function Decline via SIRT3‐PGC1α Axis

Advanced Science, EarlyView.
Aged HSF1 muscle‐specific knockout mice show deteriorated muscle atrophy and metabolic dysfunction, while active HSF1 overexpression improves muscle function via activating SIRT3 to deacetylate both PGC1α1 and PGC1α4, which boosts mitochondrial function and muscle hypertrophy in a fiber‐type specific manner, and induces FNDC5/Irisin for tissue ...
Jun Zhang, Min Hu, Xia Wu, Mingwei Guo, Ying Ma, Jin Qiu, Siqi Wang, Yuxiang Cao, Yinzhao Zhong, Fangfang Chen, Yiwen Wang, Wei Wei, Yan Lu, Yong Zhang, Junjie Xiao, Zhenji Gan, Cheng Hu, Xinran Ma, Lingyan Xu   +18 more
wiley   +1 more source

Quantum dot-based thermometry uncovers decreased myosin efficiency in an experimental intensive care unit model

Frontiers in Physiology
Critical illness myopathy (CIM) detrimentally affects muscle function in ICU patients, with a dramatic loss of muscle mass and function where the loss in specific force exceeds the loss in muscle mass (maximum force normalized to muscle cross-sectional ...
Meishan Li, Meishan Li, Nicola Cacciani, Nicola Cacciani, Fernando Ribeiro, Fernando Ribeiro, Fernando Ribeiro, Yvette Hedström, Yvette Hedström, Bhanu P. Jena, Bhanu P. Jena, Lars Larsson, Lars Larsson, Lars Larsson   +13 more
doaj   +1 more source

Familial Hypertrophic Cardiomyopathy: Diagnosis and Management

Vascular Health and Risk Management, 2023
Michael J Litt,1 Ayan Ali,2 Nosheen Reza1 1Division of Cardiovascular Medicine, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; 2Department of Medicine, Perelman School of Medicine at the ...
Litt MJ, Ali A, Reza N
doaj  

The slow sarco/endoplasmic reticulum Ca2+-ATPase declines independently of slow myosin in soleus muscle of diabetic rats [PDF]

, 2009
The sarcoplasmic reticulum Ca2+-ATPase (SERCA) isoforms are normally expressed in coordination with the corresponding myosin heavy chain (MyHC) isoforms in the fibers of skeletal muscle but this coordination is often disrupted in pathological conditions.
Rácz, Gábor, Szabó, András, Vér, Ágota, Zádor, Ernő   +3 more
core  

Targeting NRP1 in Endothelial Cells Facilitates the Normalization of Scar Vessels and Prevents Fibrotic Scarring

Advanced Science, EarlyView.
Scars exhibit vascular abnormal alterations, including upregulated NRP1 expression in endothelial cells, increased vascular density and branching, compromised vessel wall integrity, and incomplete pericyte coverage. Therapeutic targeting of NRP1 through hydrogel spray delivery offers a promising approach to normalize aberrant vasculature and prevent ...
Yu Wang, Xin Zhou, Min Liu, Meimei Huang, Peirong Chen, Xinying Li, Fangchao Xue, Wenyan Zhao, Di Liu, Lang Li, Yuangang Lu, Wen Zeng   +11 more
wiley   +1 more source