Table 3

Liver expression of miRNAs: clinical and biochemical characteristics of the whole population according to disease status

Variable (mean±SD)Non-MetSyn near-normal liver histology subjectsSSNASHp Value*p Value†p Value‡
Number of subjects142031
Female/male, %58/4250/5060/40NSNSNS
Age, years43.5±11.354.4±8.351.7±10.8<0.01NS<0.01
Obesity and central obesity
 BMI, kg/m225.4±3.431.2±5.333.6±5.8<0.001NS<0.00001
 Waist circumference, cm91±10.6105.8±12.9112.1±12.6<0.01NS<0.0004
 Waist to hip ratio0.9±0.050.96±0.050.98±0.09<0.04NS<0.05
 Body fat content (%)27.6±11.535.5±2.1239.4±5.2<0.04NS<0.04
Peripheral insulin resistance
 Fasting plasma glucose, mg/dL93.3±14104.2±23.9174.6±253NS<0.01<0.0002
 Fasting plasma insulin, mg/dL5.7±1.612.87±7.014.55±7.1<0.0006NS<0.00006
 HOMA-IR index1.34±0.543.35±2.16.58±12.9<0.0006NS<0.0002
CV risk factors
 SABP, mm Hg113±12.5128.8±14.5129.6±18<0.006NS<0.008
 DABP, mm Hg73±8.278.2±10.380.6±13.4NSNS<0.05
 C reactive protein1.96±2.94.2±3.93.5±2.9<0.04NSNS
 Leucocyte count (cells/mm3)7199±32558105±21698107±2174NSNSNS
 Total cholesterol to (HDL-C) ratio3.74±1.243.3±1.174.43±1.8NSNSNS
 Total cholesterol, mg/dL200±48.2191±47.6204.4±47.4NSNSNS
 HDL-cholesterol, mg/dL58.8±14.952±1448±9.7NSNS<0.02
 LDL-cholesterol, mg/dL117±39.7117.2±37.9123.1±34NSNSNS
 Triglycerides, mg/dL152.4±112113.1±45.1179.8±111NS<0.02NS
 Uric acid, mg/dL3.58±1.465.3±15.1±1<0.03NS<0.04
Liver phenotype
 ALT, U/L42.5±22.836.4±28.361.8±37.4NS<0.0004NS
 AST, U/L32±14.325±1246.4±22.8NS<0.00002<0.01
 GGT, U/L74.9±7356.9±5073.8±105NSNSNS
 AP, U/L244.8±129250±127199.5±108NSNSNS
Histological features
 Degree of steatosis, %0.0±055.7±25.555.6±23.5<0.000002<0.003<0.0004
 Lobular inflammation (0–3)NA1.0±0.561.15±0.5NS
 Portal inflammation (0–2)NA0.0±01.27±0.7<0.003
 Hepatocellular ballooning (0–2)NA0.0±00.96±0.6<0.000002
 Fibrosis stage0.0±00.0±01.45±1.3<0.0000001<0.00003<0.0000001
 NASNA3.1±1.215.63±1.3<0.02
  • The total cholesterol to high-density lipoprotein cholesterol (HDL-C) ratio was used as a measure of CVD risk. Results are expressed as mean±SD.

  • *Indicates comparisons between SS and non-MetSyn-near normal liver subjects.

  • †Stands for comparisons between NASH and SS.

  • ‡Stands for comparisons between NASH and non-MetSyn-near normal liver. p Value stands for statistical significance using Mann–Whitney U test, except for female/male proportion where p value stands for statistical significance using χ2 test.

  • ALT and AST, serum alanine and aspartate aminotransferase; AP, alkaline phosphatase; BMI, body mass index; CVD, cardiovascular disease; DABP, diastolic arterial blood pressure; GGT, γ-glutamyl-transferase; HOMA-IR, homeostatic model assessment-insulin resistance; LDL, low-density lipoprotein; MetSyn, metabolic syndrome; NA, not applicable; NAS, NAFLD activity score, NASH, non-alcoholic steatohepatitis; NS, non-significant; SABP, systolic arterial blood pressure; SS, simple steatosis.