As you probably are aware off after having read that study, it doesn't negate the lipotoxicity hypothesis, but merely proposes that it is probably not the only

As you probably are aware off after having read that study, it doesn't negate the lipotoxicity hypothesis, but merely proposes that it is probably not the only cause and that the role of a decline in muscle mass is perhaps also a key player specifically for the elderly where significant decline in muscle mass is typical, but obviously not so much in other population where it isn't. However, very interesting read indeed, thank you!