Publications by authors named "F Cognasse"

Platelet concentrates (PCs) intended for transfusion contain bioactive molecules that can be considered Biological Response Modifiers (BRMs), mainly originating from plasma regardless of the preparation process. During storage, NGAL and GDF-15 levels increase in single donor apheresis platelet concentrates (SDA-PC), whereas in buffy coat platelet concentrates (BC-PC), the levels of MIP1α, MCP-3, and HSAA increase, and GDF-15 levels decrease. These molecules, primarily released by leukocytes, may contribute to adverse reactions (ARs) following a PC transfusion.

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Article Synopsis
  • * Conducted as a retrospective cohort study at a tertiary academic center, it analyzed data from 7,662 cardiac surgery patients between 2012 and 2018, with 528 patients receiving intraoperative platelet transfusions.
  • * Findings indicated that platelet transfusion was linked to a significantly higher risk of bloodstream infections, but not significantly associated with hospital-acquired pneumonia or surgical-site infections, implying a need for careful consideration when using platelet transfusions in these surgeries.
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  • New analytical techniques allow for the simultaneous assessment of hundreds of proteins, helping to understand their roles in diseases like heparin-induced thrombocytopenia (HIT).
  • Researchers used four panels of the Olink proximity extension assay on patients suspected of HIT to identify potential new biomarkers related to thrombus formation, inflammation, and the immune response.
  • The study indicated that soluble P-selectin could serve as a significant marker for HIT, with future research planned to evaluate its diagnostic and prognostic value in patient care.
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Introduction: People living with HIV (PLWH) now benefit from combined antiviral treatments that durably control viral replication. These antiretroviral treatments decrease mortality and improve quality of life in PLWH, but do not completely control the excessive non-specific activation of the immune system in PLWH. This chronic immune activation is a key element of HIV immunopathology that contributes to the pathophysiology of inflammatory comorbid conditions, such as cardiovascular disorders, cancer and autoimmune diseases.

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