 ELISA plates were coated with purified soluble TREM2-Fc, and then incubated wit 1 µM Aβ42 oligomers Binding of 1 µM Aβ42 oligomers with soluble TREM-Fc family members. Results were expressed as the OD450 averaged ± standard error (n = 4, * p < 0.05, **** p<0.0001, ANOVA, Bonferroni multiple comparisons, see Appendix table S2 for p value) 