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|Titolo:||Modifications of abdominal fat and hepatic insulin clearance during severe caloric restriction|
|Autori interni:||BOSELLO, Ottavio|
|Data di pubblicazione:||1990|
|Rivista:||ANNALS OF NUTRITION AND METABOLISM|
|Abstract:||Using computed tomography on 19 obese female subjects, we determined abdominal adipose tissue, both subcutaneous and visceral adipose tissue, before and after 2 weeks of a very low caloric diet (VLCD). The following parameters were also determined before and after 15-20 days of VLCD: plasma glucose and insulin levels, oral glucose tolerance test, basal pancreatic insulin secretion estimated by fasting C peptide (Cp), and fasting insulin hepatic clearance calculated by Cp/insulin molar ratio. After VLCD the body weight and body mass index significantly declined (p less than 0.01); whereas abdominal adipose tissue and visceral abdominal tissue (VAT) significantly decreased (p less than 0.01), modifications of subcutaneous abdominal tissue (SAT) were not significant. Fasting insulin levels and plasma glucose response to oral glucose load significantly decreased (p less than 0.05). Insulin response remained unchanged. Cp immunoreactive insulin (IRI) significantly increased (p less than 0.01). A significant positive correlation was found between delta VAT and delta Cp/IRI before and after VLCD (p less than 0.01). Our data seem to suggest that the weight loss induced by VLCD fundamentally involves a decrease in VAT. The reduction in visceral fat could be associated with an increase in hepatic insulin clearance.|
|Appare nelle tipologie:||01.01 Articolo in Rivista|
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