Results 91 to 100 of about 4,307,039 (298)

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

Advanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen, Patryk Wąsik, Juan Fernando Cucuyame Morales, Marie Kate Palau, Adrian Francisco Duran Ornelas, Phani Saketh Dasika, Jin Hee Kim, Radhika Laxminarayana, Eric Hintsala, Greta Chang, Junzhi Liao, Lizhi Sun, Nathan Lord, Atsushi Arakaki, Paul Bardunias, Pablo Zavattieri, David Kisailus   +16 more
wiley   +1 more source

A comparative proteomics approach to studying skeletal muscle mitochondria from myostatin knockout mice [PDF]

, 2006
Myostatin is a negative regulator of muscle growth. When it is not present or non-functional double-muscling occurs, the primary characteristic of this phenotype being an increase in muscle mass.
Puddick, Jonathan
core  

Muscle mass measures and incident osteoporosis in a large cohort of postmenopausal women

Journal of Cachexia, Sarcopenia and Muscle, 2019
Background Despite several muscle mass measures being used in the current definitions of sarcopenia, their usefulness is uncertain because of limited data on their association with health outcomes.
Maria Papageorgiou, Thozhukat Sathyapalan, Rudolph Schutte   +2 more
doaj   +1 more source

The role of skeletal muscle Akt in the regulation of muscle mass and glucose homeostasis

Molecular Metabolism, 2019
Skeletal muscle insulin signaling is a major determinant of muscle growth and glucose homeostasis. Protein kinase B/Akt plays a prominent role in mediating many of the metabolic effects of insulin. Mice and humans harboring systemic loss-of-function mutations in Akt2, the most abundant Akt isoform in metabolic tissues, are glucose intolerant and ...
N. Jaiswal, M.G. Gavin, W.J. Quinn, III, T.S. Luongo, R.G. Gelfer, J.A. Baur, P.M. Titchenell   +6 more
openaire   +3 more sources

Mechanical Programming of PEGDA‐β‐CD Polyrotaxane‐Based Hydrogels via Host–Guest Molecular Recognition

Advanced Functional Materials, EarlyView.
A mechanically programmable hydrogel for tissue engineering is developed by modulating the molecular threading density of poly(ethylene glycol) diacrylate‐β‐cyclodextrin (PEGDA‐β‐CD) polyrotaxane and combining it with β‐CD‐modified gelatin. The polyrotaxane‐guided transition from disordered pores to laminar microstructures enables precise tuning ...
Shiyi Chen, Xudan Xing, Haopu Su, Dominik Voll, Xiaohe Xu, Jiafeng Wan, Tongtong Cui, Christian W. Schmitt, Stefan Bräse, Peng Li, Patrick Théato   +10 more
wiley   +1 more source

Nitric oxide synthase in skeletal muscle fibres of patients with type 2 diabetes [PDF]

, 2012
Muscle-derived nitric oxide (NO) mediates fundamental physiological actions on skeletal muscle including glucose uptake into muscle cells. Recently, we have shown that the altered glucose metabolism in skeletal muscle of patients with type 2 diabetes ...
Karla Punkt, Volker Adams, Katharina Kandt, Matthias Blueher, Andreas Oberbach, Igor Buchwalow   +5 more
core  

Characterisation and expression analysis of cathepsins and ubiquitin-proteasome genes in gilthead sea bream (Sparus aurata) skeletal muscle [PDF]

, 2015
This work was supported by funds from the MICINN (AGL2009-12427 and AGL2010-17324), the Catalonian Government (2009SGR-00402) and the “Xarxa de Referència d’R + D + I en Aqüicultura” and, the European Union through the project LIFECYCLE (FP7-222719 ...
Joaquim Gutiérrez, Gutiérrez Fruitós, Joaquín, Encarnación Capilla, Navarro Álvarez, Isabel, Capilla Campos, Encarnación, Salmerón Salvador, Cristina, Johnston, Ian A., Isabel Navarro, Gutiérrez, J., Cristina Salmerón, Navarro, I., Capilla, E., Johnston, I.A., Ian A Johnston, Salmerón, C.   +14 more
core   +1 more source

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

Advanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang, Xuelin Wu, Yinding Chi, Qingya Huang, Yaoye Hong, Antonio Proctor Martinez, Jingxian Wu, Bingzhi He, Cynthia Sung, Shu Yang   +9 more
wiley   +1 more source

The regulation of metabolic gene expression in human skeletal muscle by exercise: the influence of exercise intensity and contraction frequency [PDF]

, 2010
Skeletal muscle contraction increases energy expenditure and improves metabolic flexibility, but is also a key regulator of metabolic gene expression.
Carson, Brian
core   +2 more sources

Effects of inactivity on human muscle glutathione synthesis by a double-tracer and single-biopsy approach [PDF]

, 2010
Oxidative stress is often associated to inactivity-mediated skeletal muscle atrophy. Glutathione is one of the major antioxidant systems stimulated, both at muscular and systemic level, by activation of oxidative processes.
DALLA LIBERA L, Francesco Agostini, Biolo, Gianni, JURDANA M, Mihaela Jurdana, Sara Mazzucco, BIOLO G., Agostini, Francesco, Jörn Rittweger, Mazzucco, Sara, Jurdana, Mihaela, Luciano Dalla Libera, Narici, Marco, Gianni Biolo, Dalla Libera, Luciano, NARICI M, MEKJAVIC IB, Rittweger, Jörn, AGOSTINI F, Igor B. Mekjavic, Pisot, Rado, PISOT R, Mekjavic, Igor, MAZZUCCO S, Gorza, Luisa, Rado Pišot, RITTWEGER J, Marco Narici, Luisa Gorza, Gorza L   +29 more
core   +1 more source