Juliana Mozer Sciani

TL;DR: It was possible to perceive a seasonal variation on the venom contents of melittin and phospholipase A(2), but both compounds presented a synchronized variation of their levels, with an increased production in the same months.

TL;DR: A biochemical characterization of the components of the poison of eight Rhinella species and one Rhaebo by means of RP-HPLC with either UV or MS detection and by SDS-PAGE is performed to verify whether phylogenetic and biological differences, such as habitat, diet, and defensive strategies, between them may also be reflected in poison composition.

TL;DR: The ability of R. guttatus to voluntary squirt poison is directly related to its stereotyped defensive behavior, together with the peculiar morphological characteristics of its parotoids.

TL;DR: The data suggest that both Ameerega picta and L. lineatus are toxic or unpalatable and transmit common warning signals to predators, which represents a case of Müllerian mimicry.

TL;DR: This study describes the isolation and biological characterization of a novel BPP isolated from the skin secretion of the Brazilian tree-frog Phyllomedusa hypochondrialis, named Phypo Xa, able to potentiate bradykinin activities in vivo and in vitro, as well as efficiently and competitively inhibit ACE.