Results 81 to 90 of about 35,307 (294)

Lactation is Associated with Accelerated Postpartum Pelvic Floor Muscle Recovery in a Pregnant Simulated Birth Injury Model

Advanced Science, EarlyView.
ABSTRACT Healthy pelvic floor muscles (PFMs) are essential for proper pelvic floor function. The biggest risk factor for PFM dysfunction is injury sustained during vaginal childbirth, yet the factors that facilitate or impair PFM recovery from birth injury remain unknown.
Bianca L. Peña, Khushi M. Diwakar, Hillary K. Tran, Selena Cao, Celeste E. Lintz, Laila N. Hayes, Marianna Alperin, Karen L. Christman   +7 more
wiley   +1 more source

Topology‐Enriched Toughness Enhancement in Quasi‐Periodic Metastructures Featuring Tailorable Strong‐Weak Network

Advanced Science, EarlyView.
A quasi‐periodic Dart‐Kite (QDK) metastructure with a golden‐ratio‐constrained strong–weak bond network simultaneously enhances strength, toughness, and damage tolerance. Its distributed topology enables predictable, tailorable crack paths for precise fracture control and stable mechanics, demonstrating a high‐performance, controllable architecture ...
Tianyu Gao, Genda Wang, Jiabao Bai, Kai Liu   +3 more
wiley   +1 more source

Disruption of a GATA4/Ankrd1 signaling axis in cardiomyocytes leads to sarcomere disarray: implications for anthracycline cardiomyopathy. [PDF]

PLoS ONE, 2012
Doxorubicin (Adriamycin) is an effective anti-cancer drug, but its clinical usage is limited by a dose-dependent cardiotoxicity characterized by widespread sarcomere disarray and loss of myofilaments.
Billy Chen, Lin Zhong, Sarah F Roush, Laura Pentassuglia, Xuyang Peng, Susan Samaras, Jeffrey M Davidson, Douglas B Sawyer, Chee Chew Lim   +8 more
doaj   +1 more source

Biomimetic Bone Marrow Monocyte Membrane‐Fused Extracellular Vesicles for Targeted Therapy of Myocardial Infarction

Advanced Science, EarlyView.
This study develops a biomimetic delivery system (M‐hEV) by fusing monocyte membranes with extracellular vesicles for targeted therapy of damaged cardiac tissue. The system homes to injured myocardium through specific molecular pathways. In a myocardial infarction model, M‐hEV effectively accumulates in the heart, reduces infarct size, alleviates ...
Jiaxin Song, Hao Yang, Qiqi Zhang, Wenqin Zhou, Rui Wang, Yuxing Xie, Emeli Chatterjee, Guoping Li, Jizong Jiang, Qiulian Zhou, Cuimei Zhao   +10 more
wiley   +1 more source

Overexpression of Lifeact in the C. elegans body wall muscle causes sarcomere disorganization and embryonic or larval lethality

Frontiers in Cell and Developmental Biology
Lifeact is a short peptide that is widely utilized as a probe for actin filaments in live imaging. However, high concentrations of Lifeact can alter actin filament dynamics and cause artificial modifications to the actin cytoskeleton.
Shoichiro Ono, Shoichiro Ono
doaj   +1 more source

Sarcomere dynamics revealed by a myofilament integrated FRET-based biosensor in live skeletal muscle fibers

Scientific Reports, 2022
The sarcomere is the functional unit of skeletal muscle, essential for proper contraction. Numerous acquired and inherited myopathies impact sarcomere function causing clinically significant disease.
Ashley A. Martin, Brian R. Thompson, Jonathan P. Davis, Hluechy Vang, Dongwoo Hahn, Joseph M. Metzger   +5 more
doaj   +1 more source

Multiscale Architecture and Mechanics of the Cell Nucleus: Implications for Disease, Bioengineering and Nanomedicine

Advanced Science, EarlyView.
Nuclear mechanical properties are inherently scale‐dependent, arising from a hierarchical architecture that spans DNA, chromatin, the nuclear envelope, and condensates. Experimental techniques and theoretical models are integrated into a cohesive multiscale framework linking nanoscale structural features to organelle‐level mechanical behavior.
Xinran Liu, Xin Chen, Qingyang Zhao, Weikang Tan, Lingrui Zhu, Kin Liao, Vincent Chan, Nicolae Goga, Winfred O. Larkotey, Yang Li, Yinghui Shi, Wenya Shu, Lin Wang, Weiqing Wang, Tian Jian Lu, Yulong Han   +15 more
wiley   +1 more source

Are the class 18 myosins Myo18A and Myo18B specialist sarcomeric proteins?

Frontiers in Physiology
Initially, the two members of class 18 myosins, Myo18A and Myo18B, appeared to exhibit highly divergent functions, complicating the assignment of class-specific functions.
Markus Horsthemke, Charles-Adrien Arnaud, Charles-Adrien Arnaud, Peter J. Hanley   +3 more
doaj   +1 more source

Considerations for an In Vitro, Cell-Based Testing Platform for Detection of Drug-Induced Inotropic Effects in Early Drug Development. Part 2: Designing and Fabricating Microsystems for Assaying Cardiac Contractility With Physiological Relevance Using Human iPSC-Cardiomyocytes

Frontiers in Pharmacology, 2019
Contractility of the myocardium engines the pumping function of the heart and is enabled by the collective contractile activity of its muscle cells: cardiomyocytes.
Alexandre J. S. Ribeiro, Brian D. Guth, Brian D. Guth, Michael Engwall, Sandy Eldridge, C. Michael Foley, Liang Guo, Gary Gintant, John Koerner, Stanley T. Parish, Jennifer B. Pierson, Mathew Brock, Khuram W. Chaudhary, Yasunari Kanda, Brian Berridge   +14 more
doaj   +1 more source

Mathematical modelling of the half-sarcomere from a human skeletal muscle [PDF]

The character of the functional output of a motor unit within skeletal muscle has been linked experimentally to the proteins found in the sarcomere, the smallest contractile unit of muscle fibre.
Guest, Kay P.
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