Adipose Tissue Flashcards
Initiates a series of metabolites steps that lead to activation of lipase
Norepinephrine
When adipose tissue is stimulate by neural or hormonal mechanisms, TGs are broken down into glycerol and FA
Mobilization
Enzyme that splits TGs which constitute more than 90% of the lipids stored in the adipocytes
Lipase
Hormone that promotes lipid synthesis by stimulating lipid synthesis enzymes and supresses lipid degradation
Insulin
Implicated as a Causative factor in the development of insulin resistance assoc. with obesity and diabetes
Tumor necrosis factor alpha
Adipose tissue which helps offset the extensive heat loss and avoid lethal hypothermia
Brown adipose tissue
Master switch regulator in the brown adiocyte’s differentiation
PRDM16/PGC-1
A 33-Kd inner mitochondrial membrane protein that is essential for brown adipocyte metabolism
UPC-1
An endocrine tumor of adrenal gland secreting excessive amounts of epinephrine and norepinephrine
Pheochromocytoma
Most common benign tumor of adipose tissue
Lipoma
Thermogenic activity of brown adipose tissue is facilitated by _____ that is found at the inner mitchondrial membrane
UPC-1
Stimulates lipolysis and hydrolysis of TGs as well as increases mitochondrial expression and activity of UCP-1
Norepinephrine
Cold stimulates glucose utilization in brown adipocytes by
Overexpression of glucose transporter (Glut-4)
UCP-1 expression is unique to what adipose tissue?
Brown adipose tissue
Unilocular, spherical, flatten nucleus, thin rim of cytoplasm
White adipose tissue