The very low carbohydrates diet (VLCKD) induces liver steatosis amelioration. Lysosomal acid lipase (LAL) deficiency plays a role in fats accumulation in liver. To date, no studies have assessed LAL activity in morbid obesity. The aim of our study is to evaluate VLCKD impact on metabolic/vascular parameters and LAL activity in obese patients. A VLCKD is administered for 25 days to 52 morbid obese patients (BMI 44.7±8.3 kg/m², age 49±12.5 years); at baseline and after diet we evaluated: BMI, glyco-lipidic pattern, abdominal ultrasonography (liver steatosis and visceral fat area) and flow-mediated dilation (FMD). In a subgroup of 20 patients we also tested lysosomal acid lipase (LAL)-activity. A group of healthy normal weight subjects (age 43±13, BMI 22.8±2.6 kg/m²) was also included in the study.
Study Type
OBSERVATIONAL
Enrollment
60
University of Perugia
Perugia, Italy
RECRUITINGlysosomal acid lipase activity
LAL-activity was dosed with dried blood spot (DBS) technique using the inhibitors Lalistat 2
Time frame: change from baseline after 25 days
endothelial function
flow mediated dilation at brachial artery by ultrasonography
Time frame: change from baseline after 25 days
visceral fat
ultrasonography
Time frame: change from baseline after 25 days
liver steatosis
ultrasonography
Time frame: change from baseline after 25 days
lipid assessment
total cholesterol, triglycerides, HDL, LDL
Time frame: change from baseline after 25 days
general adiposity assessment
bioimpedentiometry
Time frame: change from baseline after 25 days
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