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Title: Dried plum diet protects from bone loss caused by ionizing radiation

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep21343· OSTI ID:1242248
 [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3];  [4];  [1]
  1. NASA Ames Research Center, Moffett Field, CA (United States)
  2. Univ. of California, Irvine, CA (United States)
  3. Texas A & M Univ., College Station, TX (United States)
  4. Univ. of California, San Francisco, CA (United States)

Bone loss caused by ionizing radiation is a potential health concern for radiotherapy patients, radiation workers and astronauts. In animal studies, exposure to ionizing radiation increases oxidative damage in skeletal tissues, and results in an imbalance in bone remodeling initiated by increased bone-resorbing osteoclasts. Therefore, we evaluated various candidate interventions with antioxidant or antiinflammatory activities (antioxidant cocktail, dihydrolipoic acid, ibuprofen, dried plum) both for their ability to blunt the expression of resorption-related genes in marrow cells after irradiation with either gamma rays (photons, 2 Gy) or simulated space radiation (protons and heavy ions, 1 Gy) and to prevent bone loss. Dried plum was most effective in reducing the expression of genes related to bone resorption (Nfe2l2, Rankl, Mcp1, Opg, TNF-α) and also preventing later cancellous bone decrements caused by irradiation with either photons or heavy ions. Furthermore, dietary supplementation with DP may prevent the skeletal effects of radiation exposures either in space or on Earth.

Research Organization:
NASA Ames Research Center (ARC), Moffett Field, Mountain View, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
SC0001507
OSTI ID:
1242248
Journal Information:
Scientific Reports, Vol. 6; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 40 works
Citation information provided by
Web of Science

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Dried Plums, Prunes and Bone Health: A Comprehensive Review journal April 2017
A Moderate Daily Dose of Resveratrol Mitigates Muscle Deconditioning in a Martian Gravity Analog journal July 2019
Radiation-Induced Bone Toxicity journal October 2017
Establishing mechanisms affecting the individual response to ionizing radiation journal January 2020
Effects of Iron Overload and Oxidative Damage on the Musculoskeletal System in the Space Environment: Data from Spaceflights and Ground-Based Simulation Models journal September 2018
Ionizing Radiation Exacerbates the Bone Loss Induced by Iron Overload in Mice journal November 2019
Therapeutic ionizing radiation induced bone loss: a review of in vivo and in vitro findings journal March 2018
Redox Signaling and Its Impact on Skeletal and Vascular Responses to Spaceflight journal October 2017