A rise in body temperature caused by physical work, including exercise, in a hot climate can lead to heat-related illnesses such as exertional heat exhaustion and stroke. Individuals who work physically demanding occupations in hot environments are at heightened risk of heat injury. The mechanisms that contribute to heat illness resulting from physical work in the heat are complex and include dehydration, tissue ischemia and damage, oxidative stress, and inflammatory events. Therefore, it is important to develop strategies that address these mechanistic underpinnings to prevent exacerbation to heat illness. Glutamine is an amino acid that has been considered conditionally essential during situations of biological stress (e.g., tissue burn, exercise, sepsis) due to high rates of tissue consumption. Evidence suggests that glutamine may serve as an important nutrient during heat stress and when combined with other preventative measures (e.g., cooling techniques, work/rest ratios, clothing) may help to mitigate heat illness among individuals working in extreme climates. The aim of this review is to examine the current literature on the role of glutamine during heat stress.
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http://dx.doi.org/10.1155/jnme/1638244 | DOI Listing |
BMC Public Health
December 2024
Rui Nabeiro Biodiversity Chair, MED - Mediterranean Institute for Agriculture, Environment and Development & CHANGE - Global Change and Sustainability Institute, Universidade de Évora, Largo dos Colegiais, Évora, 7004-516, Portugal.
Background: The increased severity of extreme weather and anticipated climate change has intensified heat stress-related mortality worldwide. This study examines the historical short-term effects of heat on mortality in Alentejo, Portugal's warmest region, and projects it up to the end of the century.
Methods: Using data from 1980 to 2015 during warm seasons (May-September), the association between daily mortality by all-causes and mean temperature was examined following a case time series design, applied at both regional and subregional scales.
Am J Ind Med
December 2024
Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, Georgia, USA.
Background: While construction workers have the second highest rate of heat-related mortality, less is known about the prevelance of heat-related illness (HRI) symptoms, dehydration and kidney dysfunction. The aim of this study was to conduct a biomedical field-based study with construction workers to characterize HRI symptoms, dehydration, and kidney dysfunction, and analyze relationships between post-work urine specific gravity (USG) percentiles and predictors such as work hours, water consumption, and sugary beverage consumption.
Methods: In collaboration with the Farmworker Association of Florida, 58 construction workers in Central Florida were monitored pre- and post-work shift on one workday.
New Solut
December 2024
Faculty of Health Sciences, University of Ottawa, Ottawa, ON, Canada.
An ever-increasing number of workplaces are becoming heat-exposed due to rising temperature extremes. However, a comprehensive review of Canadian safety materials available to support workplaces in managing this critical hazard has not previously been conducted. We undertook a review and a content analysis of heat stress materials on safety-based ministry, association, and agency websites in Canada (n = 155) to identify content related to heat stress (n = 595).
View Article and Find Full Text PDFInt J Public Health
December 2024
Division of Public Health, Social and Preventive Medicine, Center for Preventive Medicine Baden-Württemberg, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
Objectives: Climate change is increasing the risk of heat-related illness in outdoor sports. Coaches have a responsibility to protect the athletes in their care. In this study, the knowledge and practice of German coaches in heat prevention were evaluated nationwide.
View Article and Find Full Text PDFJ Nanobiotechnology
December 2024
Brain Injury Center, Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China.
Traumatic brain injury (TBI) is one of the leading public health concerns in the world. Therapeutic hypothermia is routinely used in severe TBI, and pathophysiological hyperthermia, frequently observed in TBI patients, has an unclear impact on drug transport in the injured brain due to a lack of study on its effects. We investigated the effect of post-traumatic therapeutic hypothermia at 33°C and pathophysiological hyperthermia at 39°C on brain transport and cell uptake of neuroprotectants after TBI.
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