Changes in body weight, but not calcium intake, were associated with these alterations. Overall, lactation-associated changes in bone structural geometry and bone mineral content had minimal short-term impact on compressive (CSA) or bending strength (section modulus) in these well-nourished women because alterations occurred mainly at internal surfaces close
to the neutral axis and changes in CSA were small. This study also found no evidence for a detrimental effect on bone mineral content or structural geometry SB203580 order after lactation had ceased and therefore on the inferred indices of compressive and bending strength, at each of the sites examined by HSA. Further research is required to confirm these findings in other lactating populations especially among potentially vulnerable women such as adolescent mothers and women with very low calcium intakes (about 300 mg/day). Dr. Tom Beck, Department of Radiology, Johns Hopkins University is acknowledged for provision of the HSA algorithm. “
“Osteoarthritis (OA) is the most prevalent arthritic disease and a leading cause of disability. It affects approximately
34% of the United States population over age 65 [60]. This common joint malady is characterized by marked alterations in the composition, BMS-387032 mouse structure and function of the articular cartilage. Research has focused on the impact of abnormal joint biomechanics on articular cartilage integrity and Carnitine palmitoyltransferase II chondrocyte pathobiology, and this focus has led to important insights
into complex biochemical and biomechanical influences on chondrocyte behavior. However, recent evidence supports a newer perspective — that the clinical syndrome of “OA” affects not only articular cartilage, but also the integrity of multiple joint tissues. Pathologic cellular and structural changes in synovium, bone, ligaments, supporting musculature and fibrocartilagenous structures such as the meniscus are observed in OA, and what has emerged is an appreciation that OA is a “whole joint” disease. As adult articular cartilage is avascular and aneural, pathologic changes to non-cartilagenous joint tissues are of particular interest in understanding the source of pain generation in OA. This review will focus on the impact of synovial inflammation (synovitis) in OA. We will discuss recent developments in our understanding of (I) the role of the SM in health and joint homeostasis, (II) the variability of synovitis in OA, (III) the clinical impact of synovitis on OA-related symptoms and disease progression, and (IV) pathways promoting synovitis relevant to OA. The cellular elements of the SM are a major source of synovial fluid (SF) components; these components contribute to the unique functional properties of articular surfaces and modulate chondrocyte activity.