Rheumatology Medical Article: Effect of ONO-5334 on bone mineral density and biochemical markers of bone turnover in postmenopausal osteoporosis: 2-year results from the OCEAN study (Effect of ONO-5334 on bone mineral density and biochemical...
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Paul Kroeger's curator insight,
September 28, 2013 11:17 AM
ABOUT THE STUDY: The advantage of studying twins is that they start out with the same genetic information, so differences in the way the genes act can be attributed to differences in the person's surroundings. Those differences could cause a random genetic mutation, or affect how DNA is packaged. Only 15% of identical twins will both develop as rheumatoid arthritis. To find out why, the UM scientists compared gene expression patterns of 11 pairs of monozygotic twins who shared the same egg and were genetically identical, but only one of them had rheumatoid arthritis. In addition to the three new overexpressed genes, the researchers also found that non-genetic factors influenced the action of these genes, and that if only one twin in the family had rheumatoid arthritis, the actions of the genes were different than if neither twin had rheumatoid arthritis. |
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