Publications by authors named "Maria del Carmen Jimenez-Martinez"

Background: hypovitaminosis D is frequent in kidney transplant recipient (KTR) patients and is associated with deleterious effects both at the bone and extraosseous levels. Treatment with cholecalciferol is effective for the normalization of 25(OH)D, demonstrating a beneficial effect on the calcium-tropic axis in other populations; however, its effect on the PTH/vitamin D/calcium and FGF23/klotho/phosphorus axis in RTR has not been reported. The aim of this study was to evaluate the effect of normalization of serum 25(OH)D concentrations on the PTH/vitamin D/calcium-FGF23/klotho/phosphorus axis in KTR treated with cholecalciferol, as well as the association between the components of this axis.

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Article Synopsis
  • Irritable Bowel Syndrome (IBS) is a chronic condition affecting the digestive system, and it is linked to low-grade inflammation and obesity, with a higher prevalence in obese patients (up to 31%).
  • In a study, researchers analyzed serum samples from 79 IBS patients and 35 healthy controls to assess the levels of inflammatory and immunological molecules in relation to Body Mass Index (BMI).
  • They found significantly higher levels of the complement proteins C3 and C4 in IBS patients, particularly in those with IBS-M and IBS-D subtypes, along with a positive correlation between C3 and CRP levels and BMI, highlighting a potential link between obesity-related inflammation and IBS symptoms.
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Hyper-IgE syndrome (HIES) is a rare primary immunodeficiency characterized by elevated levels of immunoglobulin E (IgE), eczematous dermatitis, cold abscesses, and recurrent infections of the lung and skin caused by . The dominant form is characterized by nonimmunologic features including skeletal, connective tissue, and pulmonary abnormalities in addition to recurrent infections and eczema. Omalizumab is a humanized recombinant monoclonal antibody against IgE.

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Although various mechanisms involving antibodies and various cell types participate, a Thl and Th2 cells imbalance seems to play a central role for allergy development. Other lymphocyte subpopulations, such as Th17, CD4 FOXP3, and Th9 positive regulatory T lymphocytes may also be involved in the allergic response. Regulatory processes are an appealing target for therapeutic approaches aiming to solve allergic reactions by restoring the delicate balance within the immune system.

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The transfer factor (TF) was described in 1955 by S. Lawrence. In 1992 Kirkpatrick characterized the specific TF at molecular level.

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T helper type 2 (Th2) cells play an important role in the onset and persistence of allergic airway inflammation. Consequently, many authors have attempted to identify cell surface markers associated with a Th2 phenotype. This work was aimed at correlating CD30 and CD57 expression on CD4(+) T cells with interleukin (IL)-4 production in peripheral blood mononuclear cells (PBMCs) from allergic patients.

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Purification of the lectin from Phaseolus acutifolius var. escumite was achieved by affinity chromatography on a column containing glutaraldehyzed membranes from blood group O erythrocytes. The lectin is a tetrameric glycoprotein of 121 kDa with 10% of sugar by weight composed by four subunits of 30 kDa as determined by SDS-PAGE.

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The aim of this review is to analyze the current state of our knowledge about cell surface molecules involved in glycolipid antigen presentation, named CD1 family. These proteins constitute a third class of antigen-presenting molecules. CD1 molecules develop diverse important immune functions in host defenses against microbial infections.

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