11 research outputs found
Sesso nel Rinascimento
Questo volume propone un discorso critico sulla sessualitĂ e sulla cultura visiva dellâItalia rinascimentale. I saggi raccolti tentano di fare luce su una serie di zone dâombra, dando spazio a tutte quelle pratiche o preferenze considerate in genere come alternative o anomalie, e a unâampia varietĂ di scenari âscandalosiâ. Particolare attenzione Ăš stata riservata allâaspetto materiale della cultura sessuale, dalle modalitĂ di rappresentazione erotica del corpo agli oggetti e agli strumenti associati allâattivitĂ sessuale. Ne emerge un quadro completamente nuovo della sessualitĂ rinascimentale, che spazza via secoli di manipolazioni ed equivoci socio-culturali, svelando scenari finora trascurati o volutamente nascosti. Diciassette saggi provocatori, con incursioni nel campo dellâarte, della letteratura, della storia, e persino della filosofia, organizzati intorno a quattro assi fondamentali: la pratica, la performance, la perversione e la punizione. Questo volume rivela un panorama molto piĂč complesso e una visione del sesso e della sessualitĂ rinascimentali carica di nuove sfumature
Homeostatic regulation of the endoneurial microenvironment during development, aging and in response to trauma, disease and toxic insult
The endoneurial microenvironment, delimited by the endothelium of endoneurial vessels and a multi-layered ensheathing perineurium, is a specialized milieu intĂ©rieur within which axons, associated Schwann cells and other resident cells of peripheral nerves function. The endothelium and perineurium restricts as well as regulates exchange of material between the endoneurial microenvironment and the surrounding extracellular space and thus is more appropriately described as a bloodânerve interface (BNI) rather than a bloodânerve barrier (BNB). Input to and output from the endoneurial microenvironment occurs via bloodânerve exchange and convective endoneurial fluid flow driven by a proximo-distal hydrostatic pressure gradient. The independent regulation of the endothelial and perineurial components of the BNI during development, aging and in response to trauma is consistent with homeostatic regulation of the endoneurial microenvironment. Pathophysiological alterations of the endoneurium in experimental allergic neuritis (EAN), and diabetic and lead neuropathy are considered to be perturbations of endoneurial homeostasis. The interactions of Schwann cells, axons, macrophages, and mast cells via cellâcell and cellâmatrix signaling regulate the permeability of this interface. A greater knowledge of the dynamic nature of tight junctions and the factors that induce and/or modulate these key elements of the BNI will increase our understanding of peripheral nerve disorders as well as stimulate the development of therapeutic strategies to treat these disorders