Related Experiment Video
Updated: May 9, 2026

04:46
Differentiation and Imaging of Brown Adipocytes from the Stromal Vascular Fraction of Interscapular Adipose Tissue from Newborn Mice
Published on: February 3, 2023
An endocrine role for brown adipose tissue?
Joan Villarroya1, Rubén Cereijo, Francesc Villarroya
1Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and.
Summary
Brown adipose tissue (BAT) may have endocrine functions beyond thermogenesis. Research suggests BAT releases factors that improve metabolic health, offering potential new obesity treatments.
Area of Science:
- Endocrinology
- Metabolic Science
- Adipose Tissue Biology
Background:
- White adipose tissue functions as an endocrine organ, releasing adipokines.
- Brown adipose tissue (BAT) is crucial for nonshivering thermogenesis and metabolic health.
- BAT's protective effects against obesity are traditionally linked to energy expenditure.
Purpose of the Study:
- To investigate the potential endocrine role of brown adipose tissue.
- To identify endocrine factors released by brown adipocytes.
- To explore BAT's contribution to metabolic regulation beyond thermogenesis.
Main Methods:
- Review of recent scientific literature on brown adipose tissue.
- Analysis of studies on endocrine factors released by brown fat.
- Examination of experimental BAT transplantation outcomes.
Main Results:
- Emerging evidence suggests brown fat releases signaling molecules during thermogenic activation.
- BAT transplantation has improved glucose tolerance and insulin sensitivity.
- Potential endocrine factors include IGF-I, IL-6, and FGF-21.
Conclusions:
- Brown adipose tissue may possess an endocrine function contributing to metabolic health.
- Further research is required to fully elucidate BAT's endocrine role and identify released factors.
- Understanding these endocrine mechanisms could lead to novel therapeutic strategies for metabolic diseases.
Related Concept Videos
Functions of Thyroid Hormones
The thyroid hormone (TH) plays a pivotal role in the intricate orchestration of physiological processes, exerting profound effects on development, metabolism, and homeostasis throughout different life stages.
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
Thermoregulation
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,...
Hypodermis
The hypodermis (the subcutaneous layer or superficial fascia) is present directly below the dermis. It connects the skin to the underlying fascia (fibrous tissue) of the bones and muscles. It is not strictly a part of the skin, although the border between the hypodermis and dermis can be difficult to distinguish. The hypodermis consists of well-vascularized, loose, areolar connective tissue and adipose tissue, which functions as a mode of fat storage and provides insulation and cushioning for...
Body Temperature
The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
Regulation of Metabolism
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...
Role of Skin in Vitamin D Synthesis
The skin plays a crucial role in the synthesis of vitamin D, a vital nutrient for various physiological processes in the body. Vitamin D is unique because it can be synthesized in the skin through a series of chemical reactions triggered by exposure to ultraviolet B (UVB) radiation from sunlight.
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin D3(cholecalciferol).
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin D3(cholecalciferol).
![Visualization and Quantification of Brown and Beige Adipose Tissues in Mice using [18F]FDG Micro-PET/MR Imaging](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F62460.jpg&w=3840&q=50)
