[HTML][HTML] Skeletal muscle energy metabolism during exercise

M Hargreaves, LL Spriet - Nature metabolism, 2020 - nature.com
The continual supply of ATP to the fundamental cellular processes that underpin skeletal
muscle contraction during exercise is essential for sports performance in events lasting …

In vitro ketone‐supported mitochondrial respiration is minimal when other substrates are readily available in cardiac and skeletal muscle

HL Petrick, HS Brunetta, C Pignanelli… - The Journal of …, 2020 - Wiley Online Library
Key points Ketone bodies are proposed to represent an alternative fuel source driving
energy production, particularly during exercise. Biologically, the extent to which …

Dietary nitrate increases submaximal SERCA activity and ADP transfer to mitochondria in slow-twitch muscle of female mice

HL Petrick, S Brownell, B Vachon… - American Journal …, 2022 - journals.physiology.org
Rapid oscillations in cytosolic calcium (Ca2 þ) coordinate muscle contraction, relaxation,
and physical movement. Intriguingly, dietary nitrate decreases ATP cost of contraction …

Dietary nitrate preserves mitochondrial bioenergetics and mitochondrial protein synthesis rates during short‐term immobilization in mice

HL Petrick, RM Handy, B Vachon… - The Journal of …, 2023 - Wiley Online Library
Skeletal muscle disuse reduces muscle protein synthesis rates and induces atrophy, events
associated with decreased mitochondrial respiration and increased reactive oxygen …

Logistic role of carnitine shuttle system on radiation-induced L-carnitine and acylcarnitines alteration

HX Liu, QJ Liu - International Journal of Radiation Biology, 2022 - Taylor & Francis
Purpose With the development of radiation metabolomics, a large number of radiation-
related metabolic biomarkers have been identified and validated. The L-carnitine and …

Blood flow restricted resistance exercise and reductions in oxygen tension attenuate mitochondrial H2O2 emission rates in human skeletal muscle

HL Petrick, C Pignanelli, PA Barbeau… - The Journal of …, 2019 - Wiley Online Library
Key points Blood flow restricted resistance exercise (BFR‐RE) is capable of inducing
comparable adaptations to traditional resistance exercise (RE), despite a lower total …

[HTML][HTML] Acidosis attenuates CPT-I-supported bioenergetics as a potential mechanism limiting lipid oxidation

SM Frangos, GJ DesOrmeaux, GP Holloway - Journal of Biological …, 2023 - ASBMB
Fuel interactions in contracting muscle represent a complex interplay between enzymes
regulating carbohydrate and fatty acid catabolism, converging in the mitochondrial matrix …

Increasing skeletal muscle carnitine content in older individuals increases whole‐body fat oxidation during moderate‐intensity exercise

C Chee, CE Shannon, A Burns, AL Selby… - Aging …, 2021 - Wiley Online Library
Intramyocellular lipid (IMCL) utilization is impaired in older individuals, and IMCL
accumulation is associated with insulin resistance. We hypothesized that increasing muscle …

Insulin rapidly increases skeletal muscle mitochondrial ADP sensitivity in the absence of a high lipid environment

HS Brunetta, HL Petrick, B Vachon… - Biochemical …, 2021 - portlandpress.com
Reductions in mitochondrial function have been proposed to cause insulin resistance,
however the possibility that impairments in insulin signaling negatively affects mitochondrial …

High‐fat diet increases electron transfer flavoprotein synthesis and lipid respiration in skeletal muscle during exercise training in female mice

PM Batterson, EM McGowan, AK Borowik… - Physiological …, 2023 - Wiley Online Library
High‐fat diet (HFD) and exercise remodel skeletal muscle mitochondria. The electron
transfer flavoproteins (ETF) transfer reducing equivalents from β‐oxidation into the electron …