Serum complement activity, immunoglobulin levels and the circulating auto-antibodies were studied in the course of laser treatment of 20 cases of crural ulcer. After temporary changes a normalization of the humoral immune response was observed in the healing cases, while in the stagnating ones opposite trend was manifest. In none of the groups were detected circulating auto-antibodies against the investigated antigens.
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Front Immunol
December 2024
Coagulation Laboratory, Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium.
Introduction: Unfolded Von Willebrand Factor (VWF) is increased in thrombotic pathologies such as myocardial infarction. Unfolded VWF mediates the binding of platelets without the need for collagen. β-glycoprotein I (β-GPI) is a natural inhibitor of the platelet-VWF interaction.
View Article and Find Full Text PDFIndian J Dermatol Venereol Leprol
November 2024
Department of Dermatology, Venerology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
J Clin Immunol
November 2024
Médecine Intensive Réanimation, Sorbonne Université, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France.
Purpose: The pathogenesis of life-threatening coronavirus disease 2019 (COVID-19) pneumonia in ICU patients can involve pre-existing auto-antibodies (auto-Abs) neutralizing type I interferons (IFNs). The impact of these auto-Abs on SARS-CoV-2 clearance in the lower respiratory tract (LRT) is unclear.
Methods: We performed a retrospective study in 99 ICU patients with COVID-19 pneumonia between March and May 2020.
Rev Med Suisse
October 2024
Service d'hématologie, Centre hospitalier universitaire vaudois et Université de Lausanne, 1011 Lausanne.
During pregnancy, the mother's IgG immunoglobulins cross the -placenta via the neonatal Fc receptor (FcRn), enabling the fetus to acquire passive immunity. In the presence of maternal allo- or auto-antibodies, placental transfer of these pathogenic antibodies mediated by FcRn can cause diseases in the fetus and/or the newborn. FcRn blockade therefore appears to be a therapeutic strategy in these high-risk pregnancies, firstly by reducing IgG recycling, -thereby reducing its concentration in the maternal circulation, and secondly by blocking placental transfer.
View Article and Find Full Text PDFIndian J Med Res
June 2024
Department of Molecular Medicine, Jamia Hamdard Institute of Molecular Medicine, New Delhi, India.
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