Search results for "inflammation"

Wharton’s Jelly Mesenchymal Stem Cells as Candidates for Beta Cells Regeneration: Extending the Differentiative and Immunomodulatory Benefits of Adul…

2010

Mesenchymal stem cells (MSC) are uniquely capable of crossing germinative layers borders (i.e. are able to differentiate towards ectoderm-, mesoderm- and endoderm-derived cytotypes) and are viewed as promising cells for regenerative medicine approaches in several diseases. Type I diabetes therapy should potentially benefit from such differentiated cells: the search for alternatives to organ/islet transplantation strategies via stem cells differentiation is an ongoing task, significant goals having been achieved in most experimental settings (e.g. insulin production and euglycaemia restoration), though caution is still needed to ensure safe and durable effects in vivo. MSC are obtainable in …

Inflammation Causes Resistance to Anti-CD20–Mediated B Cell Depletion

2016

B cells play a central role in antibody-mediated rejection and certain autoimmune diseases. However, B cell-targeted therapy such as anti-CD20 B cell-depleting antibody (aCD20) has yielded mixed results in improving outcomes. In this study, we investigated whether an accelerated B cell reconstitution leading to aCD20 depletion resistance could account for these discrepancies. Using a transplantation model, we found that antigen-independent inflammation, likely through toll-like receptor (TLR) signaling, was sufficient to mitigate B cell depletion. Secondary lymphoid organs had a quicker recovery of B cells when compared to peripheral blood. Inflammation altered the pharmacokinetics (PK) and…

Effects of leflunomide on immune responses and models of inflammation.

1993

Leflunomide is an antiphlogistic and immunomodulating agent that has been shown to be effective in preventing and healing autoimmune disorders and reactions leading to organ graft rejection. From our preliminary clinical data [4], we now have hopes that these effects, observed in experimental animals, can truly be transferred to humans. Although we are far from understanding the mode of action of leflunomide, we are slowly gathering some insight. A good many of the immunosuppressive effects of leflunomide can be attributed to the antagonistic effects it has on responses to many cytokines, most likely through receptor expression and signal transduction (tyrosine kinase inhibition). The inhib…

Uterine rejection after allogeneic uterus transplantation in the rat is effectively suppressed by tacrolimus

2013

Objective To evaluate the effects of the immunosuppressant tacrolimus on rejection of a transplanted uterus and on uterine expression of markers of inflammation and implantation. Design Experimental study. Setting University laboratory. Animal(s) Female rats. Intervention(s) Uteri from brown Norway rats were transplanted to Lewis rats, receiving either tacrolimus or no treatment. Sham groups underwent either hemihysterectomy or tacrolimus treatment. Main Outcome Measure(s) Gross morphology, histology, density of T-lymphocytes by immunohistochemistry, and mRNA levels of interleukin (IL)-1α, leukemia inhibitory factor (LIF), galectin-1, CD200, IL-15, interferon-inducible protein-10 (IP-10), a…

The many roads to inflammatory bowel diseases.

2006

Two independent studies by Rakoff-Nahoum et al. (2006) and Uhlig et al. (2006) in this issue of Immunity have illuminated a unique pathogenic role of innate immunity via Toll-like receptor and interleukin-23 signaling, respectively, in intestinal inflammation. These data define new roads to gut inflammation and future avenues for therapy.

Rheumatismus, allergisch-hyperergische Entzündung und Nebenniere

1952

1. Die durch Dca produzierte Entzundung hat keine Ahnlichkeit mit den LAsionen beim menschlichen Rheumatismus. 2. Das tierexperimentelle Aquivalent des menschlichen Rheumatismus ist die allergisch-hyperergische Entzundung. 3. Die allergisch-hyperergische Entzundung lAuft auch am nebennierenlosen Tier ab. 4. Die durch vermehrte Corticoidproduktion bedingte Lymphoclasie durfte als Antigenquelle fur den Rheumatismus keine Rolle spielen. 5. Die Kombination von Dca mit Vitamin C ist in der Lage, die allergisch-hyperergische Karditis deutlich zu dAmpfen. 6. Der menschliche Rheumatismus ist keine „Adaptionskrankheit“ im Sinne vonSelye, wenn auch den Nebennierenrindenhormongruppen ein Einflu\ auf d…

HBV-specific immune defect in chronic hepatitis B (CHB) is correlated with a dysregulation of pro- and anti-inflammatory cytokines.

1999

SUMMARY The aim of this study was to examine the immunomodulating effects of rhIL-12 on the immune response induced by hepatitis B virus (HBV) antigens in clinical subgroups of patients with HBV infection. Peripheral blood mononuclear cells (PBMC) of 80 patients were stimulated with HBsAg, HBcAg, pre-S1Ag and tetanus toxoid in the absence or presence of IL-12 (0.01, 0.1 and 1 ng/ml). Stimulation by anti-CD3 + anti-CD28 and lipopolysaccharide (LPS) were used as controls. Proliferation and cytokine production were determined by 3H-thymidine uptake and ELISA after 72 h. After stimulation with HBV antigens only, production of tumour necrosis factor-alpha (TNF-α) or IL-10 was observed in all pat…

STUDIES ON FACTORS INFLUENCING HIGH-DENSITY LIPOPROTEIN FUNCTIONALITY AND REVERSE CHOLESTEROL TRANSPORT

Coronary artery disease (CAD) in dyslipidemic and diabetic subjects remains the leading cause of death in the Western society. Current therapeutic strategies to prevent cardiovascular diseases are primarily based on the use of statins, which inhibit key enzyme in the cholesterol synthesis, HMG-CoA reductase. Another prominent risk factor for developing premature atherosclerosis is the low levels of high-density lipoprotein cholesterol (HDL-C). Despite documented benefits of statins a good proportion of individuals still remain at a higher risk of developing CAD. Therefore, focus has shifted on HDL-raising therapeutics to further improve the CV outcome. While Niacin and fenofibrate have not …

Biological Properties of a Citral-Enriched Fraction of Citrus limon Essential Oil

2020

Lemon essential oil (LEO) is a well-known flavoring agent with versatile biological activities. In the present study, we have isolated and characterized four citral-enriched fractions of winter LEO. We reported that in murine and human macrophages the pre-treatment with a mix of these fractions (Cfr-LEO) reduces the expression of the pro-inflammatory cytokines TNF-&alpha

Sourdough Fermentation Degrades Wheat Alpha-Amylase/Trypsin Inhibitor (ATI) and Reduces Pro-Inflammatory Activity

2020

The ingestion of gluten-containing foods can cause wheat-related disorders in up to 15% of wheat consuming populations. Besides the role of gluten, &alpha