Dried plum was found to be most effective in reducing bone resorption and preventing bone loss caused by ionizing radiation exposure.
The methodology of the study involved evaluating different interventions with antioxidant or anti-inflammatory activities; these included an antioxidant cocktail, dihydrolipoic acid, ibuprofen, and dried plum. These substances were tested for their ability to reduce the expression of resorption-related genes in marrow cells after these cells were exposed to gamma rays or simulated space radiation. This involved monitoring the effects on key genes related to bone resorption like Nfe2l2, Rankl, Mcp1, Opg, and TNF-α.
In the discussion of results, dried plum was highlighted as the most effective intervention in reducing the expression of genes related to bone resorption. It significantly blunted the gene effects which tend to escalate bone-loss. Moreover, dried plum was additionally effective in preventing later cancellous bone loss caused by irradiation, either from photons or heavy ions. The finding suggests that dietary supplementation with dried plum might offset the skeletal effects of radiation exposures, whether in the context of space or on Earth.
