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pubmed-article:7822372pubmed:abstractTextWe have measured the effect of age on the rate of outgrowth of cells from human trabecular bone, using a quantitative dye-binding technique. In cultures supplemented with autologous serum, there were significant negative correlations between the age of the donor and both the proportion of fragments from which outgrowths were seen after 7 days (r = -0.70; p < 0.001) and the total cell number after 14 days (r = -0.78; p < 0.005). The autologous serum supported greater cell proliferation than did fetal calf serum in all subjects regardless of age. Taken with previous observations that the in vitro growth kinetics of passaged human bone cells are independent of age, our results show that the number of proliferative precursor cells on trabecular-bone surfaces is higher in younger subjects. There is a marked decrease in precursor numbers in the second and third decades of life to a level which is maintained into old age.lld:pubmed
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pubmed-article:7822372pubmed:pagination139-42lld:pubmed
pubmed-article:7822372pubmed:dateRevised2010-11-10lld:pubmed
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pubmed-article:7822372pubmed:year1995lld:pubmed
pubmed-article:7822372pubmed:articleTitleHuman bone-cell proliferation in vitro decreases with human donor age.lld:pubmed
pubmed-article:7822372pubmed:affiliationDepartment of Rheumatology, Robert Jones and Agnes Hunt Orthopaedic and District Hospital, Oswestry, Shropshire, UK.lld:pubmed
pubmed-article:7822372pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:7822372pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed