IL6 and hereditary elliptocytosis: Regarding inflammatory markers, Interleukin-6, an inflammation-modulating cytokine (Čulić et al., 2001), was significantly decreased post-FMT in patients with HE (Bajaj et al., 2019b) and Alcohol Use Disorder (Bajaj et al., 2021), while another study on HE failed to find any changes in Interleukin-6- or ammonia-levels (Bloom et al., 2022).