Results 91 to 100 of about 21,463 (243)

Ultrastructural Study of Muscle Fibers in Experimental Fluorosis

open access: yesJournal of Basic and Applied Research in Biomedicine, 2022
The aim of this study was to evaluate the effect of fluoride on the ultrastructure of skeletal muscle. Wistar albino rats were treated with 300 and 600 mg NaF/ kg bw/day respectively, for 40 days .
A Shashi, Nidhi Rana
doaj   +2 more sources

Force enhancement after stretch of isolated myofibrils is increased by sarcomere length non-uniformities

open access: yesScientific Reports, 2020
When a muscle is stretched during a contraction, the resulting steady-state force is higher than the isometric force produced at a comparable sarcomere length.
Ricarda M. Haeger, Dilson E. Rassier
doaj   +1 more source

INTRINSIC BIREFRINGENCE OF GLYCERINATED MYOFIBRILS [PDF]

open access: yesThe Journal of Cell Biology, 1971
Patterns of intrinsic birefringence were revealed in formalin-fixed, glycerinated myofibrils from rabbit striated muscle, by perfusing them with solvents of refractive index near to that of protein, about 1.570. The patterns differ substantially from those obtained in physiological salt solutions, due to the elimination of edge- and form birefringence.
openaire   +2 more sources

Heart failure in two male patients with late‐onset Fabry mutation (IVS4 + 919G > A)

open access: yes
ESC Heart Failure, Volume 12, Issue 2, Page 1508-1513, April 2025.
Xufei Yang   +3 more
wiley   +1 more source

Effect of Exercise on Number of Myofibrils per Fiber in Sartorius Muscle of the Rat

open access: yes, 1958
The number of myofibrils per fiber at seven different cross-sectional levels of the sartorius muscles of exercised rats was compared with the number of myofibrils per fiber of the sartorius muscles of unexercised control animals.
Philip J. Rasch, Richard Holmes
core   +1 more source

Identifying regulatory muscle processes in infantile and adult Pompe patients using a multi‐omic and morphological approach

open access: yesBrain Pathology, EarlyView.
The study highlights differences in the regulatory processes of skeletal muscle, such as sarcomeric contractility, lysosomal and autophagic function, metabolic activity and immune regulation, at transcriptomic and proteomic levels in infantile and adult Pompe disease.
Alexander Schaiter   +16 more
wiley   +1 more source

The unified myofibrillar matrix for force generation in muscle

open access: yesNature Communications, 2020
Skeletal muscle cells have long been considered to be made primarily of many individual, parallel myofibrils. Here, the authors show that the striated muscle contractile machinery forms a highly branched, mesh-like myofibrillar matrix connected across ...
T. Bradley Willingham   +4 more
doaj   +1 more source

sGC stimulator BAY 41‐8543 improves survival and ventricular function in a rat model of doxorubicin‐induced cardiomyopathy with nephrotic syndrome

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Anthracyclines such as doxorubicin (DOXO) remain a cornerstone of cancer therapy but are associated with a high risk of cardiotoxicity and subsequent heart failure (HF). Impairment of NO/soluble guanylyl cyclase (sGC)/cGMP pathway has been reported in anthracycline‐induced cardiomyopathy.
Olga Gawrys   +14 more
wiley   +1 more source

Passive shoulder mobility and active shoulder external rotation recovery in upper‐trunk brachial plexus birth injuries after nerve repair

open access: yesDevelopmental Medicine &Child Neurology, EarlyView.
This was a retrospective cohort study of 322 patients with upper trunk brachial plexus birth injury following nerve surgery of C5 and/or C6. We found that a substantial gap remained between passive and active shoulder external rotation in adduction, indicating that passive mobility is not the limiting factor in active external rotation recovery ...
Eva T. E. Ulmann   +3 more
wiley   +1 more source

Does partial titin degradation affect sarcomere length nonuniformities and force in active and passive myofibrils?

open access: yes, 2018
The aim of this study was to determine the role of titin in preventing the development of sarcomere length nonuniformities following activation and after active and passive stretch by determining the effect of partial titin degradation on sarcomere ...
V. Joumaa   +9 more
core   +1 more source

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