The ventrolateral preoptic nucleus is not required for isoflurane general anesthesia.
Eikermann M, Vetrivelan R, Grosse-Sundrup M, Henry ME, Hoffmann U, Yokota S, Saper CB, Chamberlin NL. The ventrolateral preoptic nucleus is not required for isoflurane general anesthesia. Brain Res. 2011 Dec 02; 1426:30-7.