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Related Concept Videos

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The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
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The human body gets energy from the three macronutrients: carbohydrates, proteins, and fats. Energy is released when the chemical bonds in the organic compounds present in the food are broken down. The energy content of food is measured in kilocalories (kcal), defined as the amount of heat required to raise the temperature of one kilogram of water by one degree Celsius. This value is determined by measuring the temperature change of the water surrounding a calorimeter after the complete...
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Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...
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Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
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A nutritional perspective on UCP1-dependent thermogenesis.

M Luisa Bonet1, Josep Mercader2, Andreu Palou1

  • 1Laboratory of Molecular Biology, Nutrition and Biotechnology - Group of Nutrigenomics and Obesity (NUO), Universitat de les Illes Balears, Palma de Mallorca and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Spain.

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PubMed
Summary

Uncoupling protein 1 (UCP1) drives thermogenesis in brown fat, aiding weight management. Diet and genetics influence UCP1 activity, offering new obesity treatment strategies.

Keywords:
Bioactive food compoundsBrown adipose tissueDiet-induced thermogenesisNutrigeneticsUCP1White adipose tissue browning

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Area of Science:

  • Metabolic research
  • Obesity research
  • Nutritional science

Background:

  • Uncoupling protein 1 (UCP1) is key to thermogenesis in brown adipose tissue (BAT), crucial for preventing body fat accumulation.
  • BAT's presence and activation in adult humans, plus inducible UCP1 cells in white fat, have renewed research interest in UCP1 for obesity.
  • UCP1 activity is influenced by diet, making it a target for weight management and metabolic health.

Purpose of the Study:

  • To review the impact of dietary compounds on UCP1 expression and activity.
  • To explore the mechanisms by which nutrients modulate thermogenesis.
  • To discuss the role of human genetic variation in UCP1 responses to food ingredients.

Main Methods:

  • Literature review and synthesis of existing research on UCP1, thermogenesis, and nutrition.
  • Analysis of studies investigating macronutrients, micronutrients, and bioactive compounds affecting UCP1.
  • Examination of genetic studies linking human variation to UCP1-mediated responses.

Main Results:

  • Specific food compounds activate UCP1-mediated thermogenesis by influencing the sympathetic nervous system or adipose cells.
  • Dietary components can directly or indirectly impact UCP1 expression and activity.
  • Human genetic variations influence individual responses to thermogenic food ingredients.

Conclusions:

  • Understanding nutrient-UCP1 interactions is vital for developing effective dietary strategies for weight loss and improved metabolic health.
  • Targeting UCP1 through diet and considering genetic factors holds promise for personalized obesity treatments.
  • Further research into UCP1 modulation can lead to significant advances in managing obesity and metabolic disorders.