Results 141 to 150 of about 17,660 (277)

Syrinx anatomy and vocalizations in New World vultures (Aves: Cathartidae): Implications for avian vocal evolution

open access: yesJournal of Anatomy, EarlyView.
New World vultures are the only avian clade proposed to lack a syrinx and have been described as non‐vocal. Using dissection, diceCT, and histology, we demonstrate that cathartid vultures have novel syringeal features that form a syrinx and vocal characterization reveals that they produce more complex vocalizations than previously reported.
Bradley A. Ibarra   +3 more
wiley   +1 more source

Plasmatic Profiling of Individuals With Combinations of Type 2 Diabetes Mellitus, Dyslipidemia and Periodontitis: A Cross‐Sectional Study

open access: yesOral Diseases, EarlyView.
ABSTRACT Aim The objective of this study was to investigate the global profile of plasmatic proteins of individuals affected simultaneously or not by type 2 diabetes mellitus (T2DM, well/poorly‐controlled), Dyslipidemia (DL), and Periodontitis (P). Methods Besides periodontal examination, plasma was collected for glycemic, and lipid analyses from 150 ...
François Isnaldo Dias Caldeira   +7 more
wiley   +1 more source

Titin-dependent biomechanical feedback tailors sarcomeres to specialised muscle functions in insects

open access: yes
Sarcomeres are the contractile units of muscles that enable animals to move. Insect muscles are remarkable examples because they use extremely different contraction frequencies (ranging from ∼1 to 1000 Hz) and amplitudes for flying, walking and crawling.
de Boissier, Paul   +15 more
core   +1 more source

In vitro muscle contraction: A technical review on electrical pulse stimulation in C2C12 cells

open access: yesExperimental Physiology, EarlyView.
Abstract Electrical pulse stimulation (EPS) of skeletal muscle cells is increasingly used to model exercise In vitro. The murine C2C12 myotube system has become a common platform for such studies, yet wide variability in EPS protocols hampers reproducibility and cross‐study comparisons.
Mark R. C. van de Meene   +4 more
wiley   +1 more source

Applying lessons from limb muscle disuse and ageing to better understand ventilator‐induced diaphragm dysfunction

open access: yesExperimental Physiology, EarlyView.
Abstract Mechanical ventilation (MV) is a life‐saving intervention applied to critically ill patients. A common consequence of MV is ventilator‐induced diaphragm dysfunction (VIDD), which is characterized by significant diaphragm atrophy and reduced contractile function. Older patients who receive MV are more likely to develop VIDD, have worse recovery,
P. H. C. Mesquita   +3 more
wiley   +1 more source

Mitophagy in skeletal muscle: Impact of ageing, exercise and disuse

open access: yesExperimental Physiology, EarlyView.
Abstract Skeletal muscle plays an important role in whole‐body health, quality of life and regulation of metabolism. The maintenance of a healthy mitochondrial pool is imperative for the preservation of skeletal muscle quality and is mediated through mitochondrial quality control consisting of mitochondrial turnover mediated by a balance between ...
Anastasiya Kuznyetsova, David A. Hood
wiley   +1 more source

Alterations to longitudinal muscle morphology and mechanical function following immobilization and recovery in female ovariectomized and intact rats

open access: yesExperimental Physiology, EarlyView.
Abstract Serial sarcomere number (SSN) is reduced following immobilization of a muscle in a shortened position in male rodents thereby impairing muscle contractile function. However, in female rodents the effects of oestrogen on SSN and mechanical changes following immobilization and re‐ambulation are unknown.
Alexandra Q. Kirkup   +3 more
wiley   +1 more source

Ageing alters cysteine oxidation‐regulated redox signalling in skeletal muscle: Integrative omics and AI‐based structural predictions

open access: yesExperimental Physiology, EarlyView.
Abstract Ageing is associated with loss of skeletal muscle mass and strength (sarcopenia) and disrupted redox homeostasis. Redox signalling is essential for muscle adaptation, yet the mechanisms by which ageing disrupts cysteine‐based regulation are poorly defined. The drivers of site‐specific reactivity and signalling specificity in aged muscle remain
Ufuk Ersoy, Malcolm J. Jackson
wiley   +1 more source

Elucidating the cellular determinants of the end‐systolic pressure‐volume relationship of the heart via computational modelling

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Using a multiscale computational model of left ventricular electromechanics, we investigated how sarcomere dynamics influence the end‐systolic pressure‐volume (ESPV) relationship in ejecting beats compared to isovolumetric beats.
Francesco Regazzoni   +2 more
wiley   +1 more source

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