Thesis (M.S.M.E.)--University of Delaware, 2005. / Principal faculty advisor: John E. Novotny, Dept. of Mechanical Engineering. Includes bibliographical references.

Thesis (Doctoral)--Department of Cell and Molecular Biology, Lund University, Sweden. / Added t.p. with thesis statement inserted. Includes bibliographical references.

Thesis (Doctoral)--Department of Cell and Molecular Biology, Lund University, Sweden. / Added t.p. with thesis statement inserted. Includes bibliographical references.

Thesis (Ph.D.)--Kent State University, 2005. / Title from PDF t.p. (viewed Sept. 5, 2006). Advisor: Walter E. Horton. Keywords: chondrocytes; osteoarthritis; Sox9; Bcl-2; MEK-ERK 1/2. Includes bibliographical references (p. 91-106).

No description available.

Objective: To analyze cartilage gene expression of patients with osteoarthritis (OA) in correlation with radiographic and histological findings. Materials and Methods: Twenty-one patients with OA of the knee admitted for total knee replacement were analyzed clinically and radiographically by the Kellgren and Lawrence system. During surgery, cartilage samples from the medial and lateral condyles and tibial plateaus were harvested separately. Specimens were analyzed histologically (Mankin score) and total RNA was extracted directly from cartilage tissue. Steady state levels of stromelysin (MMP-3), aggrecan (AGG) and the house-keeping gene β-actin were measured using quantitative PCR. Results: Histology of medial and lateral knee compartments corresponded to radiographic changes (Spearman correlation coefficient: r = 0.7 (p < 0.01)). There was a positive correlation between MMP-3 and AGG gene expression (r = 0.4; p < 0.01). We found considerable variation of expression levels of MMP-3 and AGG and no correlation of gene expression with histological or radiographic scoring. Conclusion: The positive correlation between AGG and MMP-3 suggests a common regulation of anabolic and catabolic metabolism. There was no simple dependency between gene expression and histological and radiological findings in cartilage. / Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.