Synchrotron radiation X-ray microtomography and histomorphometry for evaluation of chemotherapy effects in trabecular bone structure

摘要

Three-dimensional microtomography has the potential to examine complete bones of small laboratory animals with very high resolution in a non-invasive way.One of the side effects caused by some chemotherapy drugs is the induction of amenorrhea, temporary or not, in premenopausal women, with a consequent decrease in estrogen production, which can lead to bone changes.In the present work, the femur heads of rats treated with chemotherapy drugs were evaluated by 3D histomorphometry using synchrotron radiation microcomputed tomography.Control animals were also evaluated for comparison.The 3D tomographic images were obtained at the SYRMEP (SYnchrotron Radiation for MEdical Physics) beamline at the Elettra Synchrotron Laboratory in Trieste, Italy.Results showed significant differences in morphometric parameters measured from the 3D images of femur heads of rats in both analyzed groups.