Inverse relation between FASN expression in human adipose tissue and the insulin resistance level.
BACKGROUND
Adipose tissue is a key regulator of energy balance playing an active role in lipid storage and may be a dynamic buffer to control fatty acid flux. Just like PPARgamma, fatty acid synthesis enzymes such as FASN have been implicated in almost all aspects of human metabolic alterations such as obesity, insulin resistance or dyslipemia. The aim of this work is to investigate how FASN and PPARgamma expression in human adipose tissue is related to carbohydrate metabolism dysfunction and obesity.


METHODS
The study included eighty-seven patients which were classified according to their BMI and to their glycaemia levels in order to study FASN and PPARgamma gene expression levels, anthropometric and biochemical variables.


RESULTS
The main result of this work is the close relation between FASN expression level and the factors that lead to hyperglycemic state (increased values of glucose levels, HOMA-IR, HbA1c, BMI and triglycerides). The correlation of the enzyme with these parameters is inversely proportional. On the other hand, PPARgamma is not related to carbohydrate metabolism.


CONCLUSIONS
We can demonstrate that FASN expression is a good candidate to study the pathophysiology of type II diabetes and obesity in humans.
Servicio de Endocrinología y Nutrición, Hospital Clínico Universitario Virgen de Victoria de Málaga, España.
María D
MD
Mayas
Francisco J
FJ
Ortega
Manuel
M
Macías-González
Rosa
R
Bernal
Ricardo
R
Gómez-Huelgas
José M
JM
Fernández-Real
Francisco J
FJ
Tinahones