Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6286752 | Trends in Neurosciences | 2013 | 13 Pages |
Abstract
Body-fluid homeostasis is essential to life, and the concentration of Na+ ([Na+]) and osmolality in plasma and the cerebrospinal fluid (CSF) are continuously monitored in the brain. To maintain a physiological level of Na/osmolality in body fluids, the control of Na and water intake and excretion are of prime importance. Two independent sensing systems for [Na+] and osmolality in circumventricular organs (CVOs) have long been postulated to be involved in the monitoring of body-fluid conditions. In the past decade, several molecules were reported as promising candidates for these sensors - Nax for the [Na+] sensor and transient receptor potential (TRP) channels for the osmosensor. This review presents a summary of developments in these areas over recent years.
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Authors
Masaharu Noda, Hiraki Sakuta,