SLC5A1 and myalgic encephalomeyelitis/chronic fatigue syndrome: Our previous study found that high-glucose (HG) levels promote SGLT1 and matrix metalloproteinase 2 expression in CFs (Meng et al., 2018), but whether HG levels promote cardiac fibrosis by inducing CF activation and whether SGLT1 is involved in HG-induced CF activation have not been reported.