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Evaluating the physiological benefits of behavioral flexibility in chacma baboons (Papio ursinus) using a biophysical model.
J Therm Biol
December 2024
NTU Psychology, Nottingham Trent University, Nottingham, NG1 4FQ, United Kingdom; Brain Function Research Group, School of Physiology, Faculty of Health Science, University of the Witwatersrand, South Africa.
As opportunistic generalists occupying a range of ecological niches, chacma baboons (Papio ursinus) are considered a highly flexible species of relatively low conservation priority. Underlying their ecological flexibility is a repertoire of behavioral strategies observed in response to ecological stressors. Although these strategies are relatively well-documented, we know very little about how they impact upon an individual's thermal and energetic physiology, which can influence population-level reproductive potential in the face of climatic warming.
View Article and Find Full Text PDFThe Anti-Obesity Effect of Fish Oil in Diet-Induced Obese Mice Occurs via Both Decreased Food Intake and the Induction of Heat Production Genes in Brown but Not White Adipose Tissue.
Int J Mol Sci
December 2024
Department of Diabetes and Endocrine Medicine, Graduate School of Medicine and Dental Sciences, Kagoshima University, Kagoshima 890-8544, Japan.
Omega-3 (ω-3) polyunsaturated fatty acids in fish oil have been shown to prevent diet-induced obesity in lean mice and to promote heat production in adipose tissue. However, the effects of fish oil on obese animals remain unclear. This study investigated the effects of fish oil in obese mice.
View Article and Find Full Text PDFThe molecular mechanism of temperature-dependent phase separation of heat shock factor 1.
Nat Chem Biol
January 2025
MOE Key Laboratory for Cellular Dynamics, School of Life Sciences, University of Science and Technology of China, Hefei, China.
Heat shock factor 1 (HSF1) is the critical orchestrator of cell responses to heat shock, and its dysfunction is linked to various diseases. HSF1 undergoes phase separation upon heat shock, and its activity is regulated by post-translational modifications (PTMs). The molecular details underlying HSF1 phase separation, temperature sensing and PTM regulation remain poorly understood.
View Article and Find Full Text PDFFrom feeling chilly to burning up: How thermal signals shape the physiological state of the body and impact physical, emotional, and social well-being.
Neurosci Biobehav Rev
January 2025
Sapienza University of Rome and CLN(2)S@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161, Rome, Italy; IRCCS, Santa Lucia Foundation, 00142 Rome, Italy.
This review examines the role of thermal interoception-awareness of body temperature-in shaping physiological states and its impact on physical, emotional, and social well-being. We describe the neural pathways and mechanisms involved in thermal processing and environmental heat exchange and how thermal interoception influences both autonomic and behavioral responses, contributing to survival and homeostasis. Additionally, the review highlights the significance of thermal signals and thermoregulation in determining higher-order cognitive and emotional functions, such as regulating sleep patterns and activity levels, monitoring physical well-being, regulating emotions, and even social interactions.
View Article and Find Full Text PDFMinimally invasive measurement of carotid artery and brain temperature in the mouse.
Magn Reson Med
January 2025
Mouse Imaging Centre (MICe), Hospital for Sick Children, Toronto, Ontario, Canada.
Purpose: Brain temperature is tightly regulated and reflects a balance between cerebral metabolic heat production and heat transfer between the brain, blood, and external environment. Blood temperature and flow are critical to the regulation of brain temperature. Current methods for measuring in vivo brain and blood temperature are invasive and impractical for use in small animals.
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