A nem alkoholos zsírmájbetegség (NAFLD) ma a leggyakoribb májbetegség, a világ népességének 25%-át érinti. A kórkép és progresszív formája, a nem alkoholos steatohepatitis gyakran társul obesitassal és 2-es típusú cukorbetegséggel. NAFLD-ben 2–3-szoros a diabetes kockázata, ami párhuzamosan nő a májbetegség súlyosságával. Mivel komplex kapcsolat van a két kórkép között, a zsírmáj és a diabetes szinergikusan hat a kedvezőtlen klinikai kimenetelre. Cukorbetegekben gyakori a zsírmáj, és a diabetes NAFLD-ben prediktora a steatohepatitisbe, fibrosisba, cirrhosisba való progressziónak. A genetikai faktorok mellett a túlzott kalóriabevitel, a zsírszövet diszfunkciója, az inzulinrezisztencia, a szabad zsírsavak és gyulladásos citokinek, valamint a lipo- és glükotoxicitás szerepe meghatározó a NAFLD és a diabetes kialakulásában. A dolgozatban áttekintjük a két kórképet összekötő patomechanizmusokat. Orv Hetil. 2022; 163(21): 815–825.
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