SLC5A1 and infection: Specifically, after infection with recombinant lentivirus, SGLT-1 protein expression in the Lv-SGLT1 group was significantly higher than that in the other three groups, whereas SGLT-1 expression in the Lv-siSGLT1 group was lower than that in the other three groups, as depicted in Fig. 1, B and D.