V. FRANCESCHINI

Chronic renal disease causes olfactory impairment through an unknown mechanism. Chondrichthyes, a class of vertebrates characterized by high plasma urea concentration, lack olfactory cilia and the G protein alpha subunit olfactory-type (Gαolf - marker of the olfactory receptor neurons in vertebrates) in their olfactory neuroepithelium (ONE)....

Acorn barnacles are cirripedian crustacea with a sessile adult stage, that live in a calcareous shell attached to a submersed substrate and filter food with its limbs. Barnacles show various naupliar stages and a cyprid, the final lecithotrophic stage competent for settlement. Due to their ability to adhere, barnacles are important constituents...

Among vertebrates, the physiologically uremic Chondrichthyes are the only class which are not presenting the ciliated olfactory receptor neurons in the olfactory neuroepithelium. The only sequenced genome for this class revealed only three olfactory receptor genes and the immunohistochemical detec- tion of G protein alpha subunit typically...

Aim of this study was to evaluate the effects of urea on the molecules involved in olfactory signal reception and transduction, and on nitric oxide synthase (NOS) in the olfactory epithelium of vertebrates. The study is based on evolutionary and clinical clues. The physiologically uremic fishes (the Chondrichthyes class) lack olfactory cilia,...

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