Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.


Sci. STKE, 19 December 2006
Vol. 2006, Issue 366, p. tw423
[DOI: 10.1126/stke.3662006tw423]


Neuroscience Quieting the Brain at Birth

Pamela J. Hines

Science, AAAS, Washington, DC 20005, USA

Birth entails a multitude of transitions. Studying rats, Tyzio et al. have identified yet one more, a link between oxytocin exposure and the switch in how certain brain neurons fire. The neurotransmitter GABA ({gamma}-aminobutyric acid) is usually excitatory in fetal brain neurons but inhibitory once they mature. Exposure to oxytocin during parturition causes a switch from excitation to inhibition in GABA signaling. This quieting of neuronal activity may serve to protect the brain against transient hypoxia during birth.

R. Tyzio, R. Cossart, I. Khalilov, M. Minlebaev, C. A. Hübner, A. Represa, Y. Ben-Ari, R. Khazipov, Maternal oxytocin triggers a transient inhibitory switch in GABA signaling in the fetal brain during delivery. Science 314, 1788-1792 (2006). [Abstract] [Full Text]

Citation: P. J. Hines, Quieting the Brain at Birth. Sci. STKE 2006, tw423 (2006).

To Advertise     Find Products

Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882