https://www.selleckchem.com/products/740-y-p-pdgfr-740y-p.html We showed that modification of the first two N-terminal residues of the chemokine (K1R or P2G) does not alter the ability of CXCL12 to activate ACKR3. Our results also identified the K1R variant as a G protein-biased agonist of CXCR4. Comparative molecular dynamics simulations of the complexes formed by ACKR3 either with CXCL12 or with the P2G variant identified interactions between the N-terminal 2-4 residues of CXCL12 and a pocket formed by receptor's TM helices 2, 6, and 7 as critical determinants for ACKR3 activation. ©2020 Society for Leukocyte Biology.AIMS To determine the prevalence of potentially inappropriate medication (PIM) use at hospital admission and discharge, and the contribution to hospital admission among residential aged care facility (RACF) residents with and without dementia. METHODS We conducted a secondary analysis using data from a multi-hospital prospective cohort study involving consecutively admitted older adults, aged 75 years or older, who were taking five or more medications prior to hospital admission and discharged to a RACF in South Australia. PIM use was identified using the 2015 Screening Tool for Older Persons' Prescription (STOPP) and 2019 Beers Criteria. An expert panel of clinicians with geriatric medicine expertise evaluated the contribution of PIM to hospital admission. RESULTS In total, 181 participants were included, the median age was 87.5 years and 54.7% were female. Ninety-one (50.3%) had a diagnosis of dementia. Participants with dementia had less PIMs, according to at least one of the two screening criteria, than those without dementia, at admission (dementia 76 (83.5%) vs no dementia 84 (93.3%), p=0.04) and discharge (78 (85.7%) vs 83(92.2%), p=0.16). PIM use was causal or contributory to the admission in 28.1% of study participants (n=45) who were taking at least one PIM at admission. CONCLUSIONS Over 80% of acutely admitted older adults took PIMs at hosp