Influence of adrenergic ?-receptor activity on blood flow and free fatty acid release in canine subcutaneous adipose tissue during hemorrhagic shock

1971 ◽  
Vol 268 (2) ◽  
pp. 140-147 ◽  
Author(s):  
Arisztid G. B. Kov�ch ◽  
Sune Rosell ◽  
P�ter S�ndor ◽  
Edith Koltay ◽  
Margit H�mori ◽  
...  
Keyword(s):  
Blood Flow ◽  
Adipose Tissue ◽  
Fatty Acid ◽  
Free Fatty Acid ◽  
Hemorrhagic Shock ◽  
Adrenergic Receptor ◽  
Subcutaneous Adipose Tissue ◽  
Fatty Acid Release ◽  
Acid Release ◽  
Subcutaneous Adipose

scholarly journals Factors regulating subcutaneous adipose tissue storage, fibrosis, and inflammation may underlie low fatty acid mobilization in insulin-sensitive obese adults

2017 ◽  
Vol 313 (4) ◽  
pp. E429-E439 ◽  
Author(s):  
Douglas W. Van Pelt ◽  
Lisa M. Guth ◽  
Abigail Y. Wang ◽  
Jeffrey F. Horowitz
Keyword(s):  
Adipose Tissue ◽  
Fatty Acid ◽  
Subcutaneous Adipose Tissue ◽  
Obese Adults ◽  
Tissue Samples ◽  
Pathway Activation ◽  
Fatty Acid Release ◽  
Acid Release ◽  
Subcutaneous Adipose ◽  
Fatty Acid Mobilization

Although the rate of fatty acid release from adipose tissue into the systemic circulation is very high in most obese adults, some obese adults maintain relatively low rates of fatty acid release, which helps protect them against the development of systemic insulin resistance. The primary aim of this study was to identify factors in adipose tissue that may underlie low vs. high rates of fatty acid mobilization in a relatively homogeneous cohort of obese adults. We measured systemic fatty acid rate of appearance (FA Ra) via 13C-palmitate isotope dilution, and we obtained subcutaneous abdominal adipose tissue samples from 30 obese adults (BMI: 38 ± 1 kg/m2, age: 30 ± 2 yr) after an overnight fast. We then measured insulin sensitivity using a hyperinsulinemic-euglycemic clamp. Confirming our previous work, insulin sensitivity was inversely proportional to FA Ra ( R2 = 0.50; P < 0.001). Immunoblot analysis of subcutaneous adipose tissue samples revealed that, compared with obese adults with high FA Ra, those with low FA Ra had lower markers of lipase activation and higher abundance of glycerol-3-phosphate acyltransferase, which is a primary enzyme for fatty acid esterification. Microarray and pathway analysis provided evidence of lower fibrosis and lower SAPK/JNK pathway activation in obese adults with low FA Ra compared with those with high FA Ra. Our findings suggest that alterations in factors regulating triglyceride storage in adipose tissue, along with lower fibrosis and inflammatory pathway activation, may underlie maintenance of a relatively low FA Ra in obesity, which may help protect against the development of insulin resistance.

scholarly journals Free Fatty Acid Storage in Human Visceral and Subcutaneous Adipose Tissue: Role of Adipocyte Proteins

Diabetes ◽  
2011 ◽  
Vol 60 (9) ◽  
pp. 2300-2307 ◽  
Author(s):  
A. H. Ali ◽  
C. Koutsari ◽  
M. Mundi ◽  
M. D. Stegall ◽  
J. K. Heimbach ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Fatty Acid ◽  
Free Fatty Acid ◽  
Subcutaneous Adipose Tissue ◽  
Subcutaneous Adipose
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