International Society of Nephrology force to provide emergency dialysis services in areas struck by disasters (usually earthquakes), where numerous victims may develop acute renal failure due to crush syndrome. Supported by Médecins Sans Frontières, industry sponsors and professional associations, the Renal Disaster Relief Task Force sends renal nurses, technicians and doctors to the affected area. Since its establishment, it has assisted in a number of major earthquakes in several countries. The society publishes four medical journals: "Kidney International", "Kidney International Supplements", "Kidney International Reports", and "Seminars in Nephrology". The current leadership of the ISN includes John Feehally (president), Adeera Levin (secretary general), Victor Schuster
Circumventricular organs Circumventricular organs Circumventricular organs (CVOs) are structures in the brain characterized by their extensive and highly permeable microvasculature, unlike those in the rest of the brain where there exists a blood brain barrier (BBB). The term "circumventricular organs" was originally proposed in 1958 by Austrian anatomist Helmut Hofer, in recognition of the distribution of the structures around the ventricular system of the brain. The circumventricular organs are midline structures around the third and fourth ventricles that are in contact with blood and cerebrospinal fluid, and allow for the linkage between the central nervous system and peripheral blood. Additionally, they are