Medicine and Health Sciences Commons^™

Analyzing Indoor And Outdoor Heat Index Measurements In Kitchens, Allison Welch

USF Tampa Graduate Theses and Dissertations

Occupationally induced heat-related illnesses (HRI) can play a huge part in the lives of employees working within outdoor kitchens. According to the National Institute for Occupational Safety and Health [NIOSH] (2016), “exposure to heat can result in injuries, disease, reduced productivity and death”. When working in outdoor environments, it is important to limit exposure time of direct sun or heat as well as to stay properly hydrated. One way to ensure limited occupational heat exposure is by measuring the Heat Index of the worker's environmental conditions.

The purpose of this study is to determine whether there was a difference between …

The Hsp72 And Hsp90Α Mrna Responses To Hot Downhill Running Are Reduced Following A Prior Bout Of Hot Downhill Running, And Occur Concurrently Within Leukocytes And The Vastus Lateralis, James A. Tuttle, Bryna C.R. Chrismas, Oliver R. Gibson, James H. Barrington, David C. Hughes, Paul C. Castle, Alan J. Metcalfe, Adrian W. Midgley, Oliver Pearce, Chindu Kabir, Faizal Rayanmarakar, Sami Al-Ali, Mark P. Lewis, Lee Taylor

Research outputs 2014 to 2021

The leukocyte heat shock response (HSR) is used to determine individual's thermotolerance. The HSR and thermotolerance are enhanced following interventions such as preconditioning and/or acclimation/acclimatization. However, it is unclear whether the leukocyte HSR is an appropriate surrogate for the HSR in other tissues implicated within the pathophysiology of exertional heat illnesses (e.g., skeletal muscle), and whether an acute preconditioning strategy (e.g., downhill running) can improve subsequent thermotolerance. Physically active, non-heat acclimated participants were split into two groups to investigate the benefits of hot downhill running as preconditioning strategy. A hot preconditioning group (HPC; n = 6) completed two trials (HPC1 …

Sirt1 Activation Mediates Heat-Induced Survival Of Uvb Damaged Keratinocytes, Leslie Calapre, Elin S. Gray, Sandrine Kurdykowski, Anthony David, Pascal Descargues, Mel R. Ziman Dr

Research outputs 2014 to 2021

Background

Exposure to heat stress after UVB irradiation induces a reduction of apoptosis, resulting in survival of DNA damaged human keratinocytes. This heat-mediated evasion of apoptosis appears to be mediated by activation of SIRT1 and inactivation of p53 signalling. In this study, we assessed the role of SIRT1 in the inactivation of p53 signalling and impairment of DNA damage response in UVB plus heat exposed keratinocytes.

Results

Activation of SIRT1 after multiple UVB plus heat exposures resulted in increased p53 deacetylation at K382, which is known to affect its binding to specific target genes. Accordingly, we noted decreased apoptosis and …

Impacts Of Vitamin C And E Injections On Ovarian Structures And Fertility In Holstein Cows Under Heat Stress Conditions, Juan GonzáLez Maldonado, Raymundo Rangel Santos, Raymundo Rodriguez De Lara, Gustavo Ramirez Valverde

Turkish Journal of Veterinary & Animal Sciences

This study evaluated the effect of injecting vitamin C (VC) and E (VE) on size of the preovulatory follicle, volume of the corpus luteum, and pregnancy rates in Holstein cows under heat stress conditions (temperature humidity index > 74). Sixty-two cows were randomly assigned to one of four treatments: 1, control, n = 15: cows were not supplemented with vitamins; 2, VCG, n = 15: cows were simultaneously injected i.v. with 500 and s.c. with 2500 mg of VC before and after estrus; 3, VEG, n = 15: cows received an i.m. injection of 3000 IU of VE before estrus; 4, …