The 2009 edition of the National Science Foundation's prestigious Highlights program, which reports the best and brightest results of the work of a select group of scientists who have been awarded NSF funding, features an account of research conducted by Dr. Timothy Bromage, Adjunct Professor of Biomaterials & Biomimetics and of Basic Science & Craniofacial Biology.
The report, issued by the Physical Anthropology Program of the NSF's Division of Behavioral and Cognitive Sciences, features Dr. Bromage's discovery of a new biological clock, or rhythm, that controls many metabolic functions and is based on the circadian rhythm. Dr. Bromage discovered the rhythm while observing incremental growth lines in tooth enamel, which appear much like the annual rings on a tree. He also observed a related pattern of incremental growth in skeletal bone tissue-the first time such an incremental rhythm has ever been observed in bone. The research was initially presented at the 2008 meeting of the American Association for Dental Research and was published in the May 2009 issue of Calcified Tissue International.