González M P, Ventura M E, Caldés T, Pascual-Leone A M
Rev Esp Fisiol. 1976 Jun;32(2):127-30.
This paper reports the presence of urea in rat brain and the evidence that it does not come from blood contamination. The amount of urea is higher during the first 4 days after birth, and it decreases thereon as the brain develops. Urea concentration in brain remains constant from the age of 9 days to 1 year. A possible mechanism of brain urea formation is discussed.
本文报道了大鼠脑中尿素的存在以及其并非来自血液污染的证据。出生后的前4天尿素含量较高,之后随着大脑发育而降低。从9天龄到1岁,脑中尿素浓度保持恒定。文中讨论了大脑尿素形成的一种可能机制。