Publications by authors named "S Marca"

Cirrhosis presents with thrombocytopenia and possibly thrombocytopathy. Previous studies exploring platelet function gave conflicting results and most controversies are explained by the variety of methods employed for investigation. We sought to assess in-vitro the overall platelet function in cirrhosis.

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Background: Light transmission aggregometry (LTA) is the most widely used laboratory method for an initial screening of patients with a suspected platelet function defect (PFD), and its use has also been proposed for assessing the efficacy of antiplatelet treatment (APT). An automated LTA method has been developed by Sysmex (Kobe, Japan) on a routine coagulation analyzer (CS-2400), together with a new research parameter called PAL (platelet aggregation level) to evaluate patients on APT.

Materials And Methods: We evaluated the performance of CS-2400 compared to a stand-alone lumi-dual-aggregometer device in the diagnosis of PFD and in assessing the efficacy of APT.

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Host genetic variants may affect oral biofilms, playing a role in the periodontitis-systemic disease axis. This is the first study to assess the associations between host genetic variants and subgingival microbiota in patients with metabolic syndrome (MetS); 103 patients with MetS underwent medical and periodontal examinations and had blood and subgingival plaque samples taken. DNA was extracted and processed, assessing a panel of selected single nucleotide polymorphisms (SNPs) first (hypothesis testing) and then expanding to a discovery phase.

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Article Synopsis
  • The study assessed the effectiveness and safety of the mRNA-1273 (Moderna) COVID-19 vaccine in HIV-positive hemophilic patients during Italy's third COVID-19 wave.
  • Twenty-three adult patients were vaccinated, with blood samples taken before and two weeks after to measure antibodies and other coagulation biomarkers.
  • Results showed that all patients developed antibodies against the virus after vaccination, and there were no significant changes in coagulation or endothelial biomarkers, indicating the vaccine is safe for this population.
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