0000000000350004

AUTHOR

Alessandro Amore

showing 3 related works from this author

Dynamics of complement activation in aHUS and how to monitor eculizumab therapy.

2014

Atypical hemolytic-uremic syndrome (aHUS) is associated with genetic complement abnormalities/anti–complement factor H antibodies, which paved the way to treatment with eculizumab. We studied 44 aHUS patients and their relatives to (1) test new assays of complement activation, (2) verify whether such abnormality occurs also in unaffected mutation carriers, and (3) search for a tool for eculizumab titration. An abnormal circulating complement profile (low C3, high C5a, or SC5b-9) was found in 47% to 64% of patients, irrespective of disease phase. Acute aHUS serum, but not serum from remission, caused wider C3 and C5b-9 deposits than control serum on unstimulated human microvascular endotheli…

MaleTime FactorsClinical Trials and ObservationsComplement Membrane Attack Complexurologic and male genital diseasesBiochemistryGlomerulonephritisInside BLOOD Commentaryhemic and lymphatic diseasesMembranoproliferative glomerulonephritisMonoclonalHumanizedComplement ActivationAtypical Hemolytic Uremic SyndromeEndothelial CellHematologyRemission Inductionfood and beveragesHematologyComplement C3Eculizumabmedicine.anatomical_structureFactor HFemalecomplementaHUS eculizumabmedicine.drugMembranoproliferativeHumanmedicine.medical_specialtyEndotheliumMonitoringTime FactorGlomerulonephritis MembranoproliferativeImmunologyBiologyAntibodies Monoclonal HumanizedAntibodiesInternal medicineAtypical hemolytic uremic syndromemedicineHumansPhysiologicMonitoring PhysiologicAdenosine Diphosphate RiboseEndothelial CellsCell Biologymedicine.diseaseComplement systemImmunologyAdenosine Diphosphate Ribose; Antibodies Monoclonal Humanized; Atypical Hemolytic Uremic Syndrome; Complement Activation; Complement C3; Complement Membrane Attack Complex; Endothelial Cells; Female; Glomerulonephritis Membranoproliferative; Hemolytic-Uremic Syndrome; Humans; Male; Remission Induction; Time Factors; Monitoring Physiologic; Hematology; Biochemistry; Cell Biology; ImmunologyHemolytic-Uremic SyndromeComplement membrane attack complexBlood
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The switch from proteasome to immunoproteasome is increased in circulating cells of patients with fast progressive immunoglobulin A nephropathy and a…

2021

  The proteasome to immunoproteasome (iPS) switch consists of β1, β2 and β5 subunit replacement by low molecular weight protein 2 (LMP2), LMP7 and multicatalytic endopeptidase-like complex-1 (MECL1) subunits, resulting in a more efficient peptide preparation for major histocompatibility complex 1 (MHC-I) presentation. It is activated by toll-like receptor (TLR) agonists and interferons and may also be influenced by genetic variation. In a previous study we found an iPS upregulation in peripheral cells of patients with immunoglobulin A nephropathy (IgAN). We aimed to investigate in 157 IgAN patients enrolled through the multinational Validation Study of the Oxford Classification of IgAN (VAL…

0301 basic medicinemedicine.medical_specialtyProteasome Endopeptidase Complex030232 urology & nephrologyCD46; IgA nephropathy; biomarkers; complement; immune proteasome; progression; risk factorsMajor histocompatibility complexMembrane Cofactor Protein03 medical and health sciences0302 clinical medicineDownregulation and upregulationInternal medicinemedicinerisk factorsHumanscomplementRNA MessengerReceptorCD46Transplantationmedicine.diagnostic_testbiologybusiness.industrybiomarkersPSMB8Glomerulonephritis IGAIgA nephropathyPSMB9medicine.diseaseUp-RegulationTLR2030104 developmental biologyEndocrinologyNephrologybiology.proteinprogressionRenal biopsyimmune proteasomebusinessKidney diseaseGenome-Wide Association StudyNephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association
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CKD NUTRITION, INFLAMMATION AND OXIDATIVE STRESS

2014

Introduction and Aims: Serum p-cresyl sulfate associates with cardiovascular disease in patients at different stages of chronic kidney disease. p-Cresyl sulfate concentrations are determined by intestinal uptake of p-cresol, human metabolism to p-cresyl sulfate and renal clearance. Whether intestinal uptake of p-cresol itself is associated with cardiovascular disease in patients with renal disease has not been studied to date. Methods: We performed a prospective study in patients with chronic kidney disease stage 1-5 (clinicaltrials.gov NCT00441623). Intestinal uptake of p-cresol, under steady state conditions, was estimated from 24h urinary excretion of p-cresyl sulfate. Primary endpoint w…

Transplantationmedicine.medical_specialtyFramingham Risk ScoreCardiovascular Historybusiness.industryHazard ratioRenal functionmedicine.diseaseGastroenterologyEndocrinologyNephrologyDiabetes mellitusInternal medicinemedicineMyocardial infarctionProspective cohort studybusinessKidney diseaseNephrology Dialysis Transplantation
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