نتایج جستجو برای: mrl
تعداد نتایج: 1751 فیلتر نتایج به سال:
Previous studies have suggested that the heart may be capable of limited repair and regeneration in response to a focal injury, while other studies indicate that the mammalian heart has no regenerative capacity. To further explore this issue, we performed a series of superficial and transmural myocardial injuries in C57BL/6 and MRL/MpJ adult mice. At defined time intervals following the respect...
BACKGROUND Articular cartilage has been the focus of multiple strategies to improve its regenerative/ repair capacity. The Murphy Roths Large (MRL/MpJ) "super-healer" mouse demonstrates an unusual enhanced regenerative capacity in many tissues and provides an opportunity to further study endogenous cartilage repair. The objective of this study was to test whether the super-healer phenotype coul...
Autoimmune disease in Fas-deficient MRL-Faslpr mice is dependent on infiltrating autoreactive leukocytes and autoantibodies, and IFN-gamma plays an important role in the pathogenesis. As IL-18 is capable of inducing IFN-gamma production in T cells, we hypothesized that signaling through IL-18R is involved in the pathogenesis. To investigate the impact of IL-18 in this autoimmune disease, we gen...
MRL-1, a cannabinoid receptor-1 inverse agonist, was a member of a lead candidate series for the treatment of obesity. In rats, MRL-1 is eliminated mainly via metabolism, followed by excretion of the metabolites into bile. The major metabolite M1, a glutathione conjugate of MRL-1, was isolated and characterized by liquid chromatography/mass spectrometry and NMR spectroscopic methods. The data s...
In normal mice neonatal injection of staphylococcal enterotoxin B (SEB) induces tolerance in T cells that express reactive T cell receptor (TCR) V beta regions. To determine if a T cell neonatal defect was present in MRL-lpr/lpr mice, 20 micrograms of SEB was injected intraperitoneally every other day into V beta 8.2 TCR transgenic and nontransgenic MRL(-)+/+ and MRL-lpr/lpr mice from birth to ...
BACKGROUND Although autoimmunity in MRL/lpr mice occurs due to a defect in Fas-mediated cell death of T cells, the role of Fas-independent apoptosis in pathogenesis has rarely been investigated. We have recently reported that receptor activator of nuclear factor (NF)-κB ligand (RANKL)-activated dendritic cells (DCs) play a key role in the pathogenesis of rheumatoid arthritis (RA) in MRL/lpr mic...
A new bone marrow transplantation (BMT) method for treating severe autoimmune diseases in chimeric resistant MRL/lpr mice is presented. The method consists of fractionated irradiation (5.5 Gy x 2), followed by portal venous (PV) injection of whole bone marrow cells (BMCs) from allogeneic normal C57BL/6 (B6) mice and intravenous (IV) injection of whole B6 BMCs 5 days after the PV injection (abbr...
Genetic deficiency in TLR9 accelerates pathogenesis in the spontaneous polygenic MRL.Faslpr murine model of systemic lupus erythematosus, despite the absence of anti-nucleosome autoantibodies. However, it could be argued that this result was dependent on Fas-deficiency rather than lupus-promoting genes in the MRL genetic background. Here we report the effects of TLR9 deficiency on autoimmune di...
Neuropsychiatric symptoms of systemic lupus erythematosus (NP-SLE) have been understudied compared to end-organ failure and peripheral pathology. Neuropsychiatric symptoms, particularly affective and cognitive indications, may be among the earliest manifestations of SLE. Among the potential pathophysiological mechanisms responsible for NP-SLE are increased peripheral pro-inflammatory cytokines,...
Two preeminent lymphologists debate the findings, implications, interpretations, and value of magnetic resonance lymphography (MRL) in the evaluation of peripheral lymphedema. Their contrasting views are discussed in the context of different lymphatic imaging modalities including MRL, lymphoscintigraphy, and microscopic anatomy.
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