Publications by authors named "Margarita Samali"

Article Synopsis
  • - The study aimed to assess changes in immune cell counts in kidney transplant recipients over a year and how these changes relate to various clinical factors.
  • - Using flow cytometry on 112 patients, researchers found most T cell subsets increase post-transplant, with variations influenced by recipient age, donor type, and dialysis method.
  • - Key findings indicate that younger recipients and better graft function lead to higher T cell counts, while living donor kidneys and certain dialysis types positively affect immune recovery.
View Article and Find Full Text PDF

Background: Multiple vaccinations have potential inimical effects on the immune system aging process. We examined whether response to SARS-CoV-2 vaccination with Tozinameran is associated with immunosenescence and immunoexhaustion in kidney transplant recipients (KTRs).

Methods: In this prospective observational study, we observed 39 adult kidney transplant recipients (KTRs) who had no pre-existing anti-SARS-CoV-2 antibodies and were on stable immunosuppression.

View Article and Find Full Text PDF

Two semi-quantitative, Luminex-based, single-antigen bead (SAB) assays are available to detect anti-HLA antibodies and evaluate their reactivity with complement binding. Sera from 97 patients with positive panel reactive antibody tests (>5%) were analyzed with two SAB tests, Immucor (IC) and One-Lambda (OL), for anti-HLA antibody detection and the evaluation of their complement-binding capacity. IC detected 1608/8148 (mean fluorescent intensity (MFI) 4195 (1995-11,272)) and 1136/7275 (MFI 6706 (2647-13,184)) positive anti-HLA class I and II specificities, respectively.

View Article and Find Full Text PDF

The AtoSC two-component system in E. coli consists of the AtoS sensor kinase and the AtoC response regulator. It regulates positively the transcriptional activation of atoDAEB operon, encoding enzymes involved in short-chain fatty acid catabolism upon acetoacetate-mediated induction.

View Article and Find Full Text PDF