From: Protective effects of saffron extract and crocin supplementation on fatty liver tissue of high-fat diet-induced obese rats
Component
Grade 0
Grade 1
Grade 2
Grade 3
Range
Steatosis
<5 %
5–33 %
34–66 %
>67 %
0–3
Hepatocyte ballooning
0
Few
Many
N/A
0–2
Lobular inflammation
<2 foci/ 20×
2–4
>4
NAFLD activity score (NAS)
–
0–8