Bone health in spacefaring rodents and primates: systematic review and meta-analysis

Abstract Animals in space exploration studies serve both as a model for human physiology and as a means to understand the physiological effects of microgravity. To quantify the microgravity-induced changes to bone health in animals, we systematically searched Medline, Embase, Web of Science, BIOSIS,...

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Main Authors: Jingyan Fu, Matthew Goldsmith, Sequoia D. Crooks, Sean F. Condon, Martin Morris, Svetlana V. Komarova
Format: Article
Language:English
Published: Nature Portfolio 2021-06-01
Series:npj Microgravity
Online Access:https://doi.org/10.1038/s41526-021-00147-7
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author Jingyan Fu
Matthew Goldsmith
Sequoia D. Crooks
Sean F. Condon
Martin Morris
Svetlana V. Komarova
author_facet Jingyan Fu
Matthew Goldsmith
Sequoia D. Crooks
Sean F. Condon
Martin Morris
Svetlana V. Komarova
author_sort Jingyan Fu
collection DOAJ
description Abstract Animals in space exploration studies serve both as a model for human physiology and as a means to understand the physiological effects of microgravity. To quantify the microgravity-induced changes to bone health in animals, we systematically searched Medline, Embase, Web of Science, BIOSIS, and NASA Technical reports. We selected 40 papers focusing on the bone health of 95 rats, 61 mice, and 9 rhesus monkeys from 22 space missions. The percentage difference from ground control in rodents was –24.1% [Confidence interval: −43.4, −4.9] for trabecular bone volume fraction and –5.9% [−8.0, −3.8] for the cortical area. In primates, trabecular bone volume fraction was lower by –25.2% [−35.6, −14.7] in spaceflight animals compared to GC. Bone formation indices in rodent trabecular and cortical bone were significantly lower in microgravity. In contrast, osteoclast numbers were not affected in rats and were variably affected in mice. Thus, microgravity induces bone deficits in rodents and primates likely through the suppression of bone formation.
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spelling doaj.art-5384ced52f37482786ae0b63dde9cf182023-11-02T00:47:41ZengNature Portfolionpj Microgravity2373-80652021-06-017111410.1038/s41526-021-00147-7Bone health in spacefaring rodents and primates: systematic review and meta-analysisJingyan Fu0Matthew Goldsmith1Sequoia D. Crooks2Sean F. Condon3Martin Morris4Svetlana V. Komarova5Shriners Hospitals for Children - CanadaShriners Hospitals for Children - CanadaShriners Hospitals for Children - CanadaShriners Hospitals for Children - CanadaSchulich Library of Physical Sciences, Life Sciences and Engineering, McGill UniversityShriners Hospitals for Children - CanadaAbstract Animals in space exploration studies serve both as a model for human physiology and as a means to understand the physiological effects of microgravity. To quantify the microgravity-induced changes to bone health in animals, we systematically searched Medline, Embase, Web of Science, BIOSIS, and NASA Technical reports. We selected 40 papers focusing on the bone health of 95 rats, 61 mice, and 9 rhesus monkeys from 22 space missions. The percentage difference from ground control in rodents was –24.1% [Confidence interval: −43.4, −4.9] for trabecular bone volume fraction and –5.9% [−8.0, −3.8] for the cortical area. In primates, trabecular bone volume fraction was lower by –25.2% [−35.6, −14.7] in spaceflight animals compared to GC. Bone formation indices in rodent trabecular and cortical bone were significantly lower in microgravity. In contrast, osteoclast numbers were not affected in rats and were variably affected in mice. Thus, microgravity induces bone deficits in rodents and primates likely through the suppression of bone formation.https://doi.org/10.1038/s41526-021-00147-7
spellingShingle Jingyan Fu
Matthew Goldsmith
Sequoia D. Crooks
Sean F. Condon
Martin Morris
Svetlana V. Komarova
Bone health in spacefaring rodents and primates: systematic review and meta-analysis
npj Microgravity
title Bone health in spacefaring rodents and primates: systematic review and meta-analysis
title_full Bone health in spacefaring rodents and primates: systematic review and meta-analysis
title_fullStr Bone health in spacefaring rodents and primates: systematic review and meta-analysis
title_full_unstemmed Bone health in spacefaring rodents and primates: systematic review and meta-analysis
title_short Bone health in spacefaring rodents and primates: systematic review and meta-analysis
title_sort bone health in spacefaring rodents and primates systematic review and meta analysis
url https://doi.org/10.1038/s41526-021-00147-7
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