0000000000065383

AUTHOR

A. Accardo-palumbo

showing 3 related works from this author

Glucose-induced loss of glycosyl-phosphatidylinositol-anchored membrane regulators of complement activation (CD59, CD55) by in vitro cultured human u…

2000

Aims/hypothesis. This study examines whether increased glucose concentrations are responsible for a decreased expression of membrane regulators of complement activation molecules. The effect of high glucose in determining an increase in membrane attack complex deposition on endothelial cells was also investigated. Methods. Endothelial cells were isolated from umbilical cord tissue, cultured in the presence of increased concentrations of glucose, and the expression of CD46, CD55, and CD59 was detected by ELISA (enzyme-linked immunosorbent assay) and by flow cytometry. Glucose-treated endothelial cells were also incubated with antiendothelial cell antibodies and fresh complement to assess the…

medicine.medical_specialtyUmbilical VeinsEndotheliumGlycosylphosphatidylinositolsEndocrinology Diabetes and MetabolismCellCD59 AntigensCD59Complement Membrane Attack ComplexBiologyUmbilical veinMembrane Cofactor ProteinAntigens CDPregnancyInternal medicineInternal MedicinemedicineHumansComplement ActivationCells CulturedMembrane GlycoproteinsCD55 AntigensCD46Cell biologyComplement systemEndothelial stem cellEndocrinologymedicine.anatomical_structureGlucoseFemaleEndothelium VascularComplement membrane attack complexDiabetologia
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Two-site ELISA for quantification of the terminal C5b-9 complement complex in plasma

1993

Abstract A quantitative ELISA procedure using monoclonal and polyclonal antibodies against neoantigens of the terminal C5b-9 complement complex has been developed. The ELISA was demonstrated to be both sensitive and reproducible. The normal range for C5b-9 determinations, defined as 2.5–97.5% interval of the values obtained in 76 healthy blood donors, was 3.12–10.3 AU/ml. The presence of rheumatoid factor did not affect the determination of C5b-9 as demonstrated by immunoabsorption studies.

Anticorps monoclonalbiologymedicine.drug_classChemistryImmunologychemical and pharmacologic phenomenaMonoclonal antibodyMolecular biologyfemale genital diseases and pregnancy complicationsPolyclonal antibodiesparasitic diseasesMonoclonalmedicinebiology.proteinImmunology and AllergyRheumatoid factorComplement membrane attack complexQuantitative analysis (chemistry)Normal rangeJournal of Immunological Methods
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Reduction of plasma granzyme A correlates with severity of sepsis in burn patients.

2009

The risk of mortality is high in burn patients and correlates with age, burn area extent, and sepsis. Immunosuppression has been reported to occur after severe burn. Cytotoxic cells possess specialized granules containing perforin and a group of serine proteases (granzymes). Granzyme A is a serine protease constitutively expressed by gammadelta and NK cells, in agreement with their functional cytolytic potential. In vitro studies have shown that GrA may be released extracellularly during cytotoxic cell degranulation, indicating the activation of cytotoxic cells. The aim of our study was to determine plasma GrA activity in burned patients and to verify if decreased GrA levels were associated…

AdultMaleProteasesCritical Care and Intensive Care MedicineGranzymesNatural killer cellSepsisSepsisparasitic diseasesmedicineCytotoxic T cellHumansAgedRetrospective Studiesbiologybusiness.industryDegranulationGeneral MedicineMiddle Agedmedicine.diseasePrognosisAnti-Bacterial Agentsmedicine.anatomical_structurePerforinGranzymeImmunologyEmergency Medicinebiology.proteinGranzyme ASurgeryFemalebusinessBurnsBiomarkersBurns : journal of the International Society for Burn Injuries
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