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- W2793735671 abstract "Damaging effects due to spaceflight and long-duration weightlessness are seen in the musculoskeletal system, specifically with regards to bone loss, bone resorption, and changes in overall bone structure. These adverse effects are all seen with indicators of oxidative stress and a variation in the levels of oxidative gene expression. Once gravity is restored, however, the recovery is slow and incomplete. Despite this, few reports have investigated the correlation between oxidative damage and general modifications within the bone. In this project, we will make use of a ground-based model of simulated weightlessness (hindlimb unloading, HU) in order to observe skeletal changes in response to induced microgravity due to changes in oxidative pressures. With this model we will analyze samples at 14-day and 90-day time points following HU for the determination of acute and chronic effects, each with corresponding controls. We hypothesize that simulated microgravity will lead to skeletal adaptations including time-dependent activation of pro-oxidative processes and pro-osteoclastogenic signals related to the progression, plateau, and recovery of the bone. Microcomputed tomography techniques will be utilized to measure skeletal changes in response to HU. With the results of this study, we hope to further the understanding of skeletal affects as a result of long-duration weightlessness and develop countermeasures to combat bone loss in spaceflight and osteoporosis on Earth." @default.
- W2793735671 created "2018-03-29" @default.
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- W2793735671 date "2017-10-25" @default.
- W2793735671 modified "2023-09-24" @default.
- W2793735671 title "Skeletal Responses to Long-Duration Simulated Weightlessness in Rats" @default.
- W2793735671 hasPublicationYear "2017" @default.
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