Assessment of Circulating Immune Complexes During Natural and Experimental Canine Leishmaniasis.

Canine leishmaniasis (CanL) is a disease characterized by a large variety of clinical alterations, the majority of which being due to immune mediated mechanisms. Sick dogs usually produce high levels of -specific immunoglobulins which may give rise to circulating immune complexes (CICs) whose defective clearance by scavenging macrophages induces vasculitis and their deposition in specific organs. The aim of this study was to assess the serum level of CICs in dogs exposed to natural and experimental infection.

Posterior expression of nanos orthologs during embryonic and larval development of the anthozoan Nematostella vectensis.

Cnidarians are primitive animals located in a basal position in the phylogenetic tree of the Animal Kingdom, as an outgroup of the Bilaterians. Therefore, studies on cnidarian developmental biology may illustrate how fundamental developmental processes have originated and changed during animal evolution. A particular example of this is the establishment of polarity along the body axes, which is under the control of a number of developmental genes, most of them conserved in evolution and playing similar roles in diverged species.

nanos expression at the embryonic posterior pole and the medusa phase in the hydrozoan Podocoryne carnea.

Summary The distinction between soma and germline is an important process in the development of animals with sexual reproduction. It is regulated by a number of germline-specific genes, most of which appear conserved in evolution and therefore can be used to study the formation of the germline in diverged animal groups. Here we report the isolation of two orthologs of one such gene, nanos (nos), in the cnidarian Podocoryne carnea, a species with representative zoological features among the hydrozoans.