Non-alcoholic fatty liver syndrome: a hepatic consequence of common metabolic diseases.
OBJECTIVE
The association of liver steatosis with a number of common metabolic conditions has been suggested. The aim of the present study was to evaluate the clinical features of subjects with different severities of steatosis.


METHODS
The present study was performed in 282 consecutive patients with 'bright liver' at ultrasonography and in 58 subjects without steatosis. They had no history of alcohol abuse and negative tests for the presence of hepatitis B and C virus. Patients underwent clinical examination, anthropometry, laboratory tests and routine liver ultrasonography. Steatosis was graded as absent, mild, moderate and severe.


RESULTS
A progressive increase in the prevalence of obesity (P < 0.001), type 2 diabetes (P < 0.001), alanine aminotransferase (ALT) elevation (P < 0.001) and hypertriglyceridemia (P < 0.001), and a decrease of hypercholesterolemia (P < 0.05) was observed from the control group to the groups with mild, moderate and severe steatosis. More than half the subjects with liver steatosis had insulin resistance metabolic syndrome. Obesity, diabetes and hypertriglyceridemia were more common by 5.3-fold, 4.0-fold, and 6.7-fold, respectively, in subjects with severe steatosis, as compared to controls. Prevalence of obesity, diabetes and hyperlipidemia was significantly higher in subjects with fatty liver and ALT elevation.


CONCLUSIONS
Fatty liver can be considered as the hepatic consequence of common metabolic diseases.
Angelico
Francesco
F
Department of Clinics and Applied Medical Therapy, University La Sapienza, Rome, Italy. francesco.angelico@uniroma1.it
Del Ben
Maria
M
Conti
Rita
R
Francioso
Simona
S
Feole
Katia
K
Maccioni
Daniela
D
Antonini
Teresa Maria
TM
Alessandri
Cesare
C
D000410:Alanine Transaminase / Q000097:blood; D015992:Body Mass Index; D005234:Fatty Liver / Q000097:blood / Q000453:epidemiology / Q000209:etiology*; D005260:Female; D006801:Humans; D006949:Hyperlipidemias / Q000150:complications; D015228:Hypertriglyceridemia / Q000150:complications; D008055:Lipids / Q000097:blood; D008099:Liver / Q000473:pathology*; D008111:Liver Function Tests; D016015:Logistic Models; D008297:Male; D008659:Metabolic Diseases / Q000097:blood / Q000150:complications* / Q000453:epidemiology; D024821:Metabolic Syndrome / Q000150:complications; D008875:Middle Aged; D009765:Obesity / Q000150:complications; D015995:Prevalence; D012307:Risk Factors; D013577:Syndrome
D008055:Lipids; D000410:Alanine Transaminase