Seasonal variation of non-shivering thermogenesis (NST) during mild cold exposure
Nishimura T, Motoi M, Egashira Y, Choi D, Aoyagi K, Watanuki S
Journal of physiological anthropology · 19 citas
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Cómo se estudió
- Diseño
- Ensayo clínico controlado (clasificado por nuestro filtro de IA)
- Estudiado en
- Personas
- Resultado principal
- Solo mecanismos
Quién lo pagó
- Financiación
- Financiación independiente
- Gobierno
- Japan Society for the Promotion of Science
- Subvenciones
- Japan Society for the Promotion of Science (23247044); Japan Society for the Promotion of Science (15K18623); Japan Society for the Promotion of Science (26251050)
Según 1 financiador declarado.
Publicación
- Publicado
- 2015-03-12 · J Physiol Anthropol · vol. 34 · número 1 · pág. 11
- Editorial
- BioMed Central
- Citado
- 28 citas · más que el 90% de estudios similares · 2.7× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 20 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY
- Áreas de investigación
- Thermal Regulation in Medicine · High Altitude and Hypoxia · Thermoregulation and physiological responses
- Palabras clave
- Shivering, Thermogenesis, Acclimatization, Seasonality, Animal science, Biology, Physiology, Endocrinology, Botany, Obesity, Ecology
- MeSH
- humans, electromyography, body temperature, analysis of variance, seasons, acclimatization, oxygen consumption, thermogenesis, adult, male, cold temperature, young adult
6 autores
- Takayuki Nishimura🇯🇵 · autor de correspondenciaNagasaki University
- Midori Motoi🇯🇵Kyushu University
- Yuka Egashira🇯🇵Kyushu University
- Damee Choi🇯🇵Kyushu University
- Kiyoshi Aoyagi🇯🇵Nagasaki University
- Shigeki Watanuki🇯🇵Kyushu University
Resumen
El texto original del estudio, en el idioma en que se publicó.
Background
The physiological function of non-shivering thermogenesis (NST) has been investigated in recent years, and some studies have discussed the importance of NST with respect to human cold adaptation. The present study aimed to clarify individual and seasonal variations in NST that occurred as a result of mild cold exposure.
Methods
Seventeen male university students participated in the present study during summer and winter. The climate chamber used was programmed so that ambient temperature dropped from 28°C to 16°C over an 80-min period. Physiological parameters of test subjects were recorded during the experiments.
Results
Increases in oxygen intake (VO2) during cold exposure were significantly greater without shivering in winter than they were in summer. Respiratory exchange ratio (RER) was significantly lower during thermoneutral baseline and cold exposure in winter than it was during the same periods in summer. In addition, there was a significant negative correlation between ΔVO2 and ΔRER.
Conclusions
Increase of VO2 without shivering indicated increase of NST, and decrease of RER depends on the metabolization of fat in winter. These results suggested that NST activity was activated by seasonal acclimatization, and individual variation of NST depends on individual variation of fat metabolism.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial (CC BY).
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