Results 51 to 60 of about 21,463 (243)

Mean ± standard deviation of stress versus average sarcomere length of myofibrils.

, 2015
Myofibrils were stretched in a low-calcium solution (passive stretch, open circles) and high-calcium solution from an initial sarcomere length of 2.4μm (active stretch, black circles) and 3.4μm (active stretch from 3.4μm/sarcomere, grey squares).
Gudrun Schappacher-Tilp (713964), Gertrud Desch (713966), Timothy Leonard (713965), Walter Herzog (713967)   +3 more
core   +1 more source

Fasting and Refeeding Mediated Phospholipid Remodeling Plays an Important Role in Improving Meat Quality of Aged Laying Hens

Animal Research and One Health, EarlyView.
ABSTRACT This study explored fasting‐induced physiological remodeling effects on meat quality in aged laying hens. Fasting for 15 days (F15) significantly reduced abdominal fat, intermuscular fat width, subcutaneous fat thickness, and liver index versus pre‐fasting (F0) (p < 0.05), which recovered post‐refeeding.
Xiaoran Zhang, Jun Zhang, Yadong Tian, Donghua Li, Yanhua Zhang, Lujie Zhang, Yujie Gong, Xiangtao Kang, Ruirui Jiang   +8 more
wiley   +1 more source

Measurement of Calcium Dissociation Rates from Troponin C in Rigor Skeletal Myofibrils

Frontiers in Physiology, 2011
Ca2+ dissociation from the regulatory domain of troponin C may influence the rate of striated muscle relaxation. However, Ca2+ dissociation from troponin C has not been measured within the geometric and stoichiometric constraints of the muscle fiber ...
Sean C Little, Svetlana B Tikunova, Darl R. Swartz, Catalina eNorman, Jonathan P Davis   +4 more
doaj   +1 more source

From muscle fibres to muscle gears: how dynamic fascicle orientation and shape change impact skeletal muscle function

Biological Reviews, EarlyView.
ABSTRACT Skeletal muscle architectural design strongly affects force‐generating capacity and excursion range, and its functional importance to animal and human movement is well founded. Traditionally, this ‘structure–function relation’ has been inferred from architecture measurements with muscles at rest (from anatomical dissections or medical imaging ...
Matheus D. Pinto, James M. Wakeling, Javier A. Almonacid, Anthony J. Blazevich   +3 more
wiley   +1 more source

Action of neuwiedase, a metalloproteinase isolated from Bothrops neuwiedi venom, on skeletal muscle: an ultrastructural and immunocytochemistry study

Journal of Venomous Animals and Toxins including Tropical Diseases, 2010
The damaging effects of neuwiedase, a non-hemorrhagic snake venom metalloproteinase from P-I class, on gastrocnemius muscle are studied herein. Following neuwiedase injection, ultrastructural alterations were detected early showing disarrangement of ...
C Baldo, MJ Ferreira, DS Lopes, LFM Izidoro, AO Gomes, EAV Ferro, A Hamaguchi, MI Homsi-Brandeburgo, VM Rodrigues   +8 more
doaj   +1 more source

Contractile Properties of Human Fetal Skeletal Myofibrils

, 2013
Congenital contractures such as clubfoot are present in ?1/250 live births. Several congenital contractures syndromes are caused by mutations in genes that code for skeletal myofilament proteins, including MYH3 and MYH8.
Regnier, Michael, Beck, Anita E., Bamshad, Michael, Rao, Vijay, Racca, Alice Ward   +4 more
core   +1 more source

Exploring the super-relaxed state of myosin in myofibrils from fast-twitch, slow-twitch, and cardiac muscle [PDF]

, 2022
Muscle myosin heads, in the absence of actin, have been shown to exist in two states, the relaxed (turnover ~0.05 s-1) and super-relaxed states (SRX, 0.005 s-1) using a simple fluorescent ATP chase assay (Hooijman, P. et al (2011) Biophys. J.
Kao, Kerry, Regnier, Michael, Walklate, Jonathan, Geeves, Michael A., Kerry Kao, Michael Regnier, Jonathan Walklate, Michael A. Geeves   +7 more
core   +1 more source

Cytoskeleton–Membrane Uncoupling in Duchenne Muscular Dystrophy: Implications for Newborn Screening and Early Protection

Cytoskeleton, EarlyView.
ABSTRACT The cytoskeleton of striated muscle integrates force transmission, mechanotransduction, and sarcolemmal stability through coordinated networks of sarcomeres, costameres, and intermediate filaments. Together, these systems establish mechanical continuity between the contractile apparatus, the sarcolemma, and the extracellular matrix.
Houda Cohen, Nora Hosny, Brian R. Thompson, Joseph M. Metzger   +3 more
wiley   +1 more source

REMOVAL OF THE 18,000 DALTON LIGHT CHAIN OF MYOSIN FROM FROG MYOFIBRILS.

, 1980
REMOVAL OF THE 18,000 DALTON LIGHT CHAIN OF MYOSIN FROM FROG ...
JOHN GEORGE. SARMIENTO (7960100)
core   +3 more sources

Assembly of the giant protein projectin during myofibrillogenesis in Drosophila indirect flight muscles

BMC Cell Biology, 2004
Background Projectin is a giant modular protein of Drosophila muscles and a key component of the elastic connecting filaments (C-filaments), which are involved in stretch activation in insect Indirect Flight Muscles.
Bounaix Christophe, Ayme-Southgate Agnes, Riebe Theresa E, Southgate Richard   +3 more
doaj   +1 more source