Results 31 to 40 of about 2,186,751 (353)

Intracellular oxygen tension limits muscle contraction-induced change in muscle oxygen consumption under hypoxic conditions during Hb-free perfusion. [PDF]

, 2017
Under acute hypoxic conditions, the muscle oxygen uptake (mV˙O2) during exercise is reduced by the restriction in oxygen-supplied volume to the mitochondria within the peripheral tissue. This suggests the existence of a factor restricting the mV˙O2 under
Furuichi, Yasuro, Hashimoto, Takeshi, Iwase, Satoshi, Jue, Thomas, Masuda, Kazumi, Ojino, Minoru, Takakura, Hisashi, Yamada, Tatsuya   +7 more
core   +1 more source

Poorly Understood Aspects of Striated Muscle Contraction

BioMed Research International, 2015
Muscle contraction results from cyclic interactions between the contractile proteins myosin and actin, driven by the turnover of adenosine triphosphate (ATP).
A. Månsson, D. Rassier, G. Tsiavaliaris
semanticscholar   +1 more source

Can real-time visual feedback during gait retraining reduce metabolic demand for individuals with transtibial amputation? [PDF]

, 2017
The metabolic demand of walking generally increases following lower extremity amputation. This study used real-time visual feedback to modify biomechanical factors linked to an elevated metabolic demand of walking in individuals with transtibial ...
Choi, Harmony S., Darter, Benjamin J., Esposito, Elizabeth R., Wilken, Jason M.   +3 more
core   +5 more sources

Development of visible light‐sensitive human neuropsin (OPN5) via single amino acid substitution

FEBS Letters, EarlyView.
The present study determines a key amino acid residue, Lys91, for defining UV sensitivity of human OPN5. Heterologous action spectroscopy of the wild type and K91 mutants of OPN5 in HEK293T cells reveals that substitution of Lys91 with neutral (alanine) or acidic amino acids (glutamic or aspartic acids) causes substantial shifts in spectral sensitivity
Yusuke Sakai, Richard J. McDowell, Robert J. Lucas   +2 more
wiley   +1 more source

Ergothioneine supplementation improves pup phenotype and survival in a murine model of spinal muscular atrophy

FEBS Letters, EarlyView.
Spinal muscular atrophy (SMA) is a genetic disease affecting motor neurons. Individuals with SMA experience mitochondrial dysfunction and oxidative stress. The aim of the study was to investigate the effect of an antioxidant and neuroprotective substance, ergothioneine (ERGO), on an SMNΔ7 mouse model of SMA.
Francesca Cadile, Daniela Ratto, Giorgia Rastelli, Ottavia Eleonora Ferraro, Caterina Temporini, Sunil Kumar, Simona Boncompagni, Paola Rossi, Monica Canepari   +8 more
wiley   +1 more source

Coupling of alpha(1)-Adrenoceptors to ERK1/2 in the Human Prostate [PDF]

, 2011
Introduction: alpha(1)-Adrenoceptors are considered critical for the regulation of prostatic smooth muscle tone. However, previous studies suggested further alpha(1)-adrenoceptor functions besides contraction.
Anglin IE, Boris Schlenker, Chang L, Chon JK, Christ GJ, Christian G. Stief, Christian Gratzke, Erdogru T, Frank Strittmatter, Glassman DT, Golomb E, Johanna Göttinger, Kanagawa K, Karl-Erik Andersson, Kyprianou N, Kyprianou N, Kyprianou N, Lucia MS, Luthin GR, Marinese D, Maroni PD, Martin Hennenberg, McCubrey JA, McVary KT, Michel MC, Oliver Reich, Petter Hedlund, Ricarda M. Bauer, Roehrborn CG, Roehrborn CG, Royuela M, Royuela M, Schilit S, Schwinn DA, Shimada K, Srinivasan D, Turkeri LN, Xiao L, Zhang H, Zhang Z   +39 more
core   +1 more source

Genomics‐led approach to drug testing in models of undifferentiated pleomorphic sarcoma

Molecular Oncology, EarlyView.
GA text Genomic data from undifferentiated pleomorphic sarcoma patients and preclinical models were used to inform a targeted drug screen. Selected compounds were tested in 2D and 3D cultures of UPS cell lines. A combination of trametinib and infigratinib was synergistic in the majority of UPS cell lines tested, which was further confirmed in an ex ...
Piotr J. Manasterski, Molly R. Danks, John P. Thomson, Morwenna Muir, Martin Lee, John C. Dawson, Ana T. Amaral, Juan Diaz‐Martin, David S. Moura, Javier Martin‐Broto, Ali Alsaadi, Donald M. Salter, Ailsa J. Oswald, Graeme Grimes, Larry Hayward, Ted R. Hupp, Karen Sisley, Paul H. Huang, Neil O. Carragher, Valerie G. Brunton   +19 more
wiley   +1 more source

Muscle fiber typology substantially influences time to recover from high-intensity exercise [PDF]

, 2020
Human fast-twitch muscle fi- bers generate high power in a short amount of time but are easily fatigued, whereas slow-twitch fibers are more fatigue resistant.
Bex, Tine, Derave, Wim, Klass, Malgorzata, Lievens, Eline   +3 more
core   +2 more sources

Muscle contraction: A mechanical perspective [PDF]

The European Physical Journal E, 2010
In this paper we present a purely mechanical analog of the conventional chemo-mechanical modeling of muscle contraction. We abandon the description of kinetics of the power stroke in terms of jump processes and instead resolve the continuous stochastic evolution on an appropriate energy landscape.
Marcucci L., Truskinovsky L.
openaire   +5 more sources

Understanding and measuring mechanical signals in the tumor stroma

FEBS Open Bio, EarlyView.
This review discusses cancer‐associated fibroblast subtypes and their functions, particularly in relation to extracellular matrix production, as well as the development of 3D models to study tumor stroma mechanics in vitro. Several quantitative techniques to measure tissue mechanical properties are also described, to emphasize the diagnostic and ...
Fàtima de la Jara Ortiz, Chiara Cimmino, Maurizio Ventre, Alessandra Cambi   +3 more
wiley   +1 more source