Microscopic markers of an infradian biorhythm in human juvenile ribs

Recent studies have indicated that there may be an infradian systemic biorhythm that coordinates aspects of human hard tissue growth and influences adult body size. Here we investigate if evidence of this biorhythm retained in human teeth as the periodicity of Retzius lines (RP) corresponds with the microstructural growth of a non-weight bearing bone, the rib, in a sample of 50 human juvenile skeletons. Using static histomorphometric methods, the RP of one permanent tooth from each skeleton was calculated and combined with measures of bone remodeling in a rib from the same individual.

Source: Bone - November 29, 2018 Category: Orthopaedics Authors: Rosie Pitfield, Justyna J. Miszkiewicz, Patrick Mahoney Tags: Full Length Article Source Type: research