A. “Amyloid polymorphisms constitute distinct clouds of conformational variants in different etiological subtypes of Alzheimer’s disease,” by Jay Rasmussen, Jasmin Mahler, Natalie Beschorner, Stephan A. Kaeser, Lisa M. Häsler, Frank Baumann, Sofie Nyström, Erik Portelius, Kaj Blennow, Tammaryn Lashley, Nick C. Fox, Diego Sepulveda-Falla, Markus Glatzel, Adrian L. Oblak, Bernardino Ghetti, K. Peter R. Nilsson, Per Hammarström, Matthias Staufenbiel, Lary C. Walker, and Mathias Jucker (Vol. 114, No. 49, December 5, 2017, p. 13018-13023).
B. “Intercellular competition and the inevitability of multicellular aging,” by Paul Nelson and Joanna Masel (Vol. 114, No. 49, December 5, 2017, p. 12982–12987).
