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. 1994;14:125–133.

The effects of space flight on the composition of the intervertebral disc.

J A Maynard 1
PMCID: PMC2329046  PMID: 7719767

Abstract

The lumbar annuli of rats flown on a COSMOS space flight were compared with those of three control groups and a ground antigravity tail suspension model. The wet and dry weights of the space flight annuli were significantly smaller than the three control groups. In addition, the collagen-to-proteoglycan ratio was significantly greater in the flight group due to a proportional increase in collagen and a decrease in proteoglycan. Finally, it appears microgravity may have altered the nature of the proteoglycan population as more proteoglycans leached from the annuli of flight animals than control animals when immersed in water.

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Selected References

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  1. Bishop P. B., Pearce R. H. The proteoglycans of the cartilaginous end-plate of the human intervertebral disc change after maturity. J Orthop Res. 1993 May;11(3):324–331. doi: 10.1002/jor.1100110303. [DOI] [PubMed] [Google Scholar]
  2. Blumenkrantz N., Asboe-Hansen G. New method for quantitative determination of uronic acids. Anal Biochem. 1973 Aug;54(2):484–489. doi: 10.1016/0003-2697(73)90377-1. [DOI] [PubMed] [Google Scholar]
  3. Doty S. B., Morey-Holton E. R., Durnova G. N., Kaplansky A. S. Cosmos 1887: morphology, histochemistry, and vasculature of the growing rat tibia. FASEB J. 1990 Jan;4(1):16–23. doi: 10.1096/fasebj.4.1.2153083. [DOI] [PubMed] [Google Scholar]
  4. Gower W. E., Pedrini V. Age-related variations in proteinpolysaccharides from human nucleus pulposus, annulus fibrosus, and costal cartilage. J Bone Joint Surg Am. 1969 Sep;51(6):1154–1162. [PubMed] [Google Scholar]
  5. Jee W. S., Wronski T. J., Morey E. R., Kimmel D. B. Effects of spaceflight on trabecular bone in rats. Am J Physiol. 1983 Mar;244(3):R310–R314. doi: 10.1152/ajpregu.1983.244.3.R310. [DOI] [PubMed] [Google Scholar]
  6. Palmoski M., Perricone E., Brandt K. D. Development and reversal of a proteoglycan aggregation defect in normal canine knee cartilage after immobilization. Arthritis Rheum. 1979 May;22(5):508–517. doi: 10.1002/art.1780220511. [DOI] [PubMed] [Google Scholar]
  7. Parry D. A., Barnes G. R., Craig A. S. A comparison of the size distribution of collagen fibrils in connective tissues as a function of age and a possible relation between fibril size distribution and mechanical properties. Proc R Soc Lond B Biol Sci. 1978 Dec 18;203(1152):305–321. doi: 10.1098/rspb.1978.0107. [DOI] [PubMed] [Google Scholar]
  8. Rolander S. D., Blair W. E. Deformation and fracture of the lumbar vertebral end plate. Orthop Clin North Am. 1975 Jan;6(1):75–81. [PubMed] [Google Scholar]
  9. Tyrrell A. R., Reilly T., Troup J. D. Circadian variation in stature and the effects of spinal loading. Spine (Phila Pa 1976) 1985 Mar;10(2):161–164. doi: 10.1097/00007632-198503000-00011. [DOI] [PubMed] [Google Scholar]
  10. Urban J. P., Maroudas A. Swelling of the intervertebral disc in vitro. Connect Tissue Res. 1981;9(1):1–10. doi: 10.3109/03008208109160234. [DOI] [PubMed] [Google Scholar]
  11. Urban J. P., McMullin J. F. Swelling pressure of the lumbar intervertebral discs: influence of age, spinal level, composition, and degeneration. Spine (Phila Pa 1976) 1988 Feb;13(2):179–187. doi: 10.1097/00007632-198802000-00009. [DOI] [PubMed] [Google Scholar]
  12. Vailas A. C., Zernicke R. F., Grindeland R. E., Kaplansky A., Durnova G. N., Li K. C., Martinez D. A. Effects of spaceflight on rat humerus geometry, biomechanics, and biochemistry. FASEB J. 1990 Jan;4(1):47–54. doi: 10.1096/fasebj.4.1.2295378. [DOI] [PubMed] [Google Scholar]
  13. Vico L., Chappard D., Palle S., Bakulin A. V., Novikov V. E., Alexandre C. Trabecular bone remodeling after seven days of weightlessness exposure (BIOCOSMOS 1667). Am J Physiol. 1988 Aug;255(2 Pt 2):R243–R247. doi: 10.1152/ajpregu.1988.255.2.R243. [DOI] [PubMed] [Google Scholar]
  14. WOESSNER J. F., Jr The determination of hydroxyproline in tissue and protein samples containing small proportions of this imino acid. Arch Biochem Biophys. 1961 May;93:440–447. doi: 10.1016/0003-9861(61)90291-0. [DOI] [PubMed] [Google Scholar]
  15. Wronski T. J., Morey-Holton E. R., Doty S. B., Maese A. C., Walsh C. C. Histomorphometric analysis of rat skeleton following spaceflight. Am J Physiol. 1987 Feb;252(2 Pt 2):R252–R255. doi: 10.1152/ajpregu.1987.252.2.R252. [DOI] [PubMed] [Google Scholar]

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