OBJECTIVE To evaluate the effect of murine interleukin 17 (IL17) on cartilage catabolism and joint inflammation by direct intra-articular injection of the cytokine into murine knee joints. METHODS Knees of normal C57 Bl mice were injected once or repeatedly with recombinant IL17 or IL1beta. Inflammation was estimated by technetium-99m pertechnetate ((99)Tc) uptake and histological scoring of ...

OBJECTIVE This preliminary study aims to determine the differentially expressed proteins from chondrogenic differentiated multipotent stromal cells (cMSCs) in comparison to undifferentiated multipotent stromal cells (MSCs) and adult chondrocytes (ACs). METHODS ACs and bone marrow-derived MSCs were harvested from New Zealand White rabbits (n = 3). ACs and cMSCs were embedded in alginate and we...

Hypoxia is a potential threat to various horticultural cropsin lands prone to flooding. Citrus is mostly known as a sub-tropical crop that is often exposed to environmental stresses. In order to evaluate response of six different citrus genotypes, including sour orange, rough lemon, Trifoliate orange, Troyer citrange and two local genotypes labeled; CRC1 and CRC2 to flooding conditions, an expe...

Lacking a blood supply and having a low cellular density, articular cartilage has a minimal ability for self-repair. Therefore, wide-ranging cartilage damage rarely resolves spontaneously. Cartilage damage is typically treated by chondrocyte transplantation, mosaicplasty or microfracture. Recent advances in tissue engineering have prompted research on techniques to repair articular cartilage da...

Purpose: The objects of this study were to compare biological properties of a native articular cartilage extracellular matrix (ACECM)-derived oriented scaffold and the Chondro-Gide bilayered scaffold. Methods: The ACECM oriented scaffold (No. 4131) and the Chondro-Gide scaffold (No. 4132) compared form (I) The physical properties (II) FDA/Pl staining, and frozen sections were stained with tolui...

PURPOSE To evaluate multiple MRI parameters in a surgical model of osteochondrosis (OC) in goats. METHODS Focal ischemic lesions of two different sizes were induced in the epiphyseal cartilage of the medial femoral condyles of goats at 4 days of age by surgical transection of cartilage canal blood vessels. Goats were euthanized and specimens harvested 3, 4, 5, 6, 9 and 10 weeks post-op. Ex vi...

Kidney proximal tubules develop a severe but highly reversible energetic deficit due to nonesterified fatty acid (NEFA)-induced dissipation of mitochondrial membrane potential (DeltaPsi(m)) during reoxygenation after severe hypoxia. To assess the mechanism for this behavior, we have compared the efficacies of different NEFA for inducing mitochondrial deenergization in permeabilized tubules meas...