Does it hurt and is there downtime
These challenges have contributed to ongoing interest in non-invasive screening alternatives

and Xi and X2 are independently selected from the group consisting of one or more amino acid(s), one or more N-substituted amino acid, optionally substituted polyether, C1-C12 alkylene, arylene having 6 to 10 ring atoms, C3-C8 cycloalkylene, heterocycloalkylene having 5 to 10 ring atoms, heteroarylene having 5 to 10 ring atoms, C2-C10 alkenylene, and any combination thereof, said alkylene and alkenylene being optionally interrupted by one or more heteroatom or chemical groups selected from -O-, -S-, -C(O)-, -NR-, -C(O)NR- , -NR-C(O)-, -NR-C(O)-NR-, -NR-C(O)-O-, -O-C(O)NR- and triazole, and said alkylene, Z is independently selected from the group consisting of one or more amino acid(s), one or more N-substituted amino acid, optionally substituted polyether, C1-C12 alkylene, arylene having 6 to 10 ring atoms, C3-C8 cycloalkylene, heterocycloalkylene having 5 to 10 ring atoms, heteroarylene having 5 to 10 ring atoms, C2-C10 alkenylene, and any combination thereof, said alkylene and alkenylene being optionally interrupted by one or more heteroatom or chemical groups selected from -O-, -S-, -C(O)-, -NR-, -C(O)NR- , -NR-C(O)-, -NR-C(O)-NR-, -NR-C(O)-O-, -O-C(O)NR- and triazole, and said alkylene, R, R and R being independently selected from H and C1-C6 alkyl

In a recent study, authors tested the ability to promote cholesterol efflux and esterification of 3 of these preparations and found that the mimetics with the highest capacity to promote both steps of RCT in vitro could no replicate those results in vivo (Yuan et al., 2023)