The classical concept of heat acclimation is of an autonomically controlled array of integrative physiological processes, improving heat tolerance. New evidence suggests that a temporal interplay between opposing autonomic and peripheral cell-originated responses, switched on by heat and autonomic stimulation of the cell membrane, and a marked increase in the stock of the inducible 70-kDa heat shock protein contribute to widening of the thermoregulatory activity span.
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http://dx.doi.org/10.1152/physiologyonline.1998.13.5.218 | DOI Listing |
Am J Physiol Regul Integr Comp Physiol
January 2025
A-STEM Centre, Faculty of Science and Engineering, Swansea University, Swansea, UK.
Dietary supplements are widely used among individuals exposed to hot environments, but whether their consumption confers any thermoregulatory effect is unclear. Therefore, we systematically evaluated the effect of dietary supplementation on key aspects of thermoregulation (core temperature [T] and sweating responses) in the heat. Three databases were searched in April 2024.
View Article and Find Full Text PDFInt J Biometeorol
January 2025
Southeast Regional Climate Center, Department of Geography and Environment, University of North Carolina, Chapel Hill, NC, 27514, USA.
The relationship between diurnal temperature range (DTR) and daily mortality from 2005 to 2020 is examined for seven large metropolitan areas in Virginia using distributed lag non-linear models that control for temperature and humidity. The relative risk of mortality increases for very high DTR, and there is a short lag effect of several days. High risk DTR days are rare, typically occurring less than 1% of the time at most locations.
View Article and Find Full Text PDFScand J Public Health
January 2025
Norwegian Institute of Public Health, Oslo, Norway.
Socioeconomic conditions remain an important factor in determining health outcomes in Northern Europe. In this commentary, we argue for evidence-based temperature-related climate adaptation policies in Northern Europe that account for disparities in socioeconomic conditions and aim at universal health coverage. We highlight the role of spatial and occupational disparities in urban areas that can be important factors in increased physical and mental health impacts related to heat and cold.
View Article and Find Full Text PDFJ Exp Biol
January 2025
Department of Ocean Sciences, Memorial University of Newfoundland and Labrador, St. John's, NL. A1C 5S7, Canada.
With climate change, fish are facing rising temperatures, an increase in the frequency and severity of heat waves and hypoxia, sometimes concurrently. However, only limited studies have examined the combined effects of increases in temperature and hypoxia on fish physiology and survival. We measured the cardiorespiratory physiology of 12°C-acclimated Atlantic salmon when exposed acutely to normoxia [100% air saturation (sat.
View Article and Find Full Text PDFBMC Plant Biol
January 2025
Plant Breeding and Genetics Division, Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad, Pakistan.
Cotton is essential for the global textile industry however, climate change, especially extreme temperatures, threatens sustainable cotton production. This research aims to identify breeding strategies to improve heat tolerance and utilize stress-resistant traits in cotton cultivars. This study investigated heat tolerance for 50 cotton genotypes at the seedling stage by examining various traits at three temperatures (32 °C, 45 °C and 48 °C) in a randomized plot experiment.
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