Article
Chemistry, Multidisciplinary
Bruno Bernardi, Giovanni Franco, Gaetano Messina, Antonio Fazari, Souraya Benalia, Giuseppe Zimbalatti, Lorenzo M. M. Abenavoli
Summary: Measuring energy consumption is crucial for evaluating the risk of workers and improving workstyle during green area management. Unlike sports activities, there have been few studies on assessing physical fatigue in this sector by measuring human body function parameters and oxygen consumption. This study aims to measure the energy cost of weed control using the wearable telemetry system Cosmed K4. Twelve male workers were monitored during weed control work using a brush cutter, and the study shows that using facilitating tools like brush cutters results in low energy metabolism rates, averaging 119 Wm-2.
APPLIED SCIENCES-BASEL
(2023)
Article
Physiology
Lloyd A. Trueblood, Kirt Onthank, Noah Bos, Lucas Buller, Arianna Coast, Michael Covrig, Ethan Edwards, Stefano Fratianni, Matthew Gano, Nathaniel Iwakoshi, Eden Kim, Kyle Moss, Chantel Personius, Stephanie Reynoso, Cheyne Springbett
Summary: This study presents the first data on the effects of ocean acidification on the deep-sea octopus species Muusoctopus leioderma. The results showed that elevated CO2 levels did not affect the metabolic rate and physiological function of this species.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Annett Eitner, Simon Sparing, Felix C. Kohler, Sylvia Mueller, Gunther O. Hofmann, Thomas Kamradt, Hans-Georg Schaible, Matthias Aurich
Summary: Osteoarthritis (OA) affects the metabolism and mitochondrial function of chondrocytes. Compared to non-OA chondrocytes, OA chondrocytes release more IL-6, PGE(2), and MMP1, and produce less glycosaminoglycan. While the basal mitochondrial function is comparable, non-OA chondrocytes exhibit stronger responses to IL-1 beta/TNF stimulation, showing a larger decrease in mitochondrial ATP production and larger increases in non-mitochondrial OCR and NO production. Forskolin prevents IL-1 beta-induced mitochondrial dysfunction in OA chondrocytes but not in non-OA chondrocytes. Endogenous opioids in OA joints do not affect cytokine-induced mitochondrial dysfunction or NO upregulation. Glycolysis is not different between non-OA and OA chondrocytes.
Article
Biochemistry & Molecular Biology
Julie Hansen Bergstedt, Tilo Pfalzgraff, Peter Vilhelm Skov
Summary: Nile tilapia's tolerance to severe hypoxia is mainly achieved through metabolic depression, with a switch to anaerobic metabolism only occurring when pO(2) falls below 2.1 kPa.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
(2021)
Review
Biology
Michael Collins, Manuela Truebano, Wilco C. E. P. Verberk, John Spicer
Summary: Aquatic ectotherms may experience changes in hypoxic performance due to climate warming and thermal acclimation. Most studies focus on testing hypoxic responses at temperatures matching organisms' acclimation temperatures, limiting the interpretation of thermal acclimation effects. Some studies suggest that warm acclimation may improve hypoxic performance in aquatic ectotherms.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2021)
Article
Biology
M. E. T. Henderson, L. G. Halsey
Summary: This study aimed to evaluate the evidence for a metabolic upper critical temperature to the thermoneutral zone in humans. We synthesized current evidence about an upper limit to the human TNZ, highlighting the contradictions in the literature, and then discussed likely explanations for those contradictions.
JOURNAL OF THERMAL BIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Charles E. Amankwa, Olivia Young, Biddut DebNath, Sudershan R. Gondi, Rajiv Rangan, Dorette Z. Ellis, Gulab Zode, Dorota L. Stankowska, Suchismita Acharya
Summary: The dual-acting hybrid molecule SA-2, which has nitric oxide-donating and antioxidant activity, protects normal and glaucomatous trabecular meshwork (TM) cells from oxidative stress-induced cell death by increasing mitochondrial energy parameters and the activity of antioxidant enzymes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Endocrinology & Metabolism
Olena Mackert, Eva Katrin Wirth, Rongwan Sun, Jennifer Winkler, Aoxue Liu, Kostja Renko, Severine Kunz, Joachim Spranger, Sebastian Brachs
Summary: Alterations in mitochondrial function are closely associated with the development of various diseases. Accurate assessment of mitochondrial function ex vivo remains challenging. In this study, a novel method was used to measure mitochondrial oxygen consumption and extracellular acidification rate in metabolically relevant tissues, revealing the impact of metabolic stressors and aging on mitochondrial function.
MOLECULAR METABOLISM
(2022)
Article
Biochemistry & Molecular Biology
Karem N. Vazquez Roman, Warren W. Burggren
Summary: The morphological effects of crude oil exposure on early fish development have been well-studied, but the metabolic effects and critical windows of exposure remain unclear. This study found that zebrafish exposed to crude oil showed increased routine oxygen consumption and critical oxygen tension, depending on the day of exposure. The most significant effects on body mass and oxygen consumption occurred when exposure happened at around 3 days post-fertilization, which aligns with the vulnerable period of hatching in zebrafish development.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2022)
Article
Construction & Building Technology
Vivek Anand, Devi Sendhil, E. Rajasekar
Summary: This paper investigates the effects of different activity intensities on metabolic rate and physiological responses through controlled climate chamber experiments. The study finds significant differences in metabolic rate among different age and BMI groups, as well as impacts of temperature, humidity, and other environmental factors on metabolic rate.
BUILDING AND ENVIRONMENT
(2022)
Article
Physiology
Heather M. Bowes, Catriona A. Burdon, Nigel A. S. Taylor
Summary: The study found that basal and resting metabolic rates in humans scale allometrically with body mass, with an exponent of 0.50-0.55. It was also demonstrated that ratiometric scaling yielded invalid metabolic predictions, even within the relatively narrow experimental mass range. These findings have significant physiological implications for exercise, modeling, nutrition, and metabolism-dependent pharmacological prescriptions.
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
(2021)
Review
Endocrinology & Metabolism
Samuel C. Russo, Federico Salas-Lucia, Antonio C. Bianco
Summary: Deiodinases modify the biological activity of thyroid hormone molecules by activating or inactivating them, providing dynamic control of TH signaling. Their coordinated expression adjusts TH signaling in a time- and tissue-specific fashion, affecting metabolic pathways in health and disease states.
Article
Biology
Shaun S. Killen, Emil A. F. Christensen, Daphne Cortese, Libor Zavorka, Tommy Norin, Lucy Cotgrove, Amelie Crespel, Amelia Munson, Julie J. H. Nati, Magdalene Papatheodoulou, David J. McKenzie
Summary: Interest in measuring metabolic rates is rapidly increasing, particularly in aquatic animal metabolism research. Utilizing intermittent-flow respirometry as a research tool allows for repeated estimation of metabolic rates over time and under various conditions. However, there is a lack of published guidelines for reporting methodological details when using this technique, highlighting the need for standardization in reporting methods.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2021)
Article
Thermodynamics
Yu Zhu, Zhirong Wang, Huan Bian, Junling Wang, Wei Bai, Tianfeng Gao, Jinlong Bai, Yuxin Zhou
Summary: This study established an experimental device to investigate the critical conditions for the thermal runaway (TR) propagation of lithium-ion batteries (LIBs) in air and argon environments. It was found that argon gas has a good effect on inhibiting the TR propagation, and the critical conditions for TR propagation were determined.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Sport Sciences
Gregory C. Bogdanis, Pinelopi S. Stavrinou, Spyridon Tsirigkakis, Vassilis Mougios, Todd A. Astorino, George Mastorakos
Summary: The study compared the effects of different high-intensity interval exercise (HIIE) protocols and an isoenergetic continuous exercise protocol on metabolic, cardiorespiratory, and perceptual responses. The results showed that bout duration in HIIE has a significant impact on metabolic, cardiorespiratory, and perceptual responses, as well as blood lactate concentration.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2022)