- Neuroglobin, a new oxygen binding protein is present in the carotid body and increases after chronic intermittent hypoxia. Di Giulio, C., Bianchi, G., Cacchio, M., Artese, L., Piccirilli, M., Verratti, V., Valerio, R., Iturriaga, R. Adv. Exp. Med. Biol. (2006)