Search results for "parvo"
showing 10 items of 114 documents
Regulatory evaluation of Glybera in Europe — two committees, one mission
2013
Representing the first gene therapy to be approved in the Western world, alipogene tiparvovec (Glybera; Uniqure) has recently been said to have had a “substantial impact from a regulatory perspective” (Nature Rev. Drug Discov. 11, 664; 2012) 1 . The therapy was granted marketing authorization in the European Union for the treatment of lipoprotein lipase deficiency, which results in a clinically heterogeneous condition with a risk of potentially life-threatening pancreatitis 2 , at the end of 2012. The decision followed a positive opinion by the European Medicines Agency (EMA)’s Committee for Medicinal Products for Human Use (CHMP) 3
Erhöhte Schwellen für die Detektion von Phasenunterschieden in musterinduzierten Flimmerfarben bei Patienten mit Glaukom
1994
BACKGROUND: Pattern-induced flicker-colors are subjective colors produced by rotating disks with black-and-white arcs. Changing the direction of rotation results in a different color. Small variations in the temporal sequence (phase differences) of the black-and-white pattern cause the colors to vary and can be perceived as color differences. PATIENTS AND METHODS: We investigated the thresholds for such phase differences in healthy (n = 11) and in glaucomatous (n = 19) eyes. Acuity and color vision were tested and in patients static visual field perimetry (Octopus G1) was carried out. The disks used for producing the pattern-induced flicker-colors were viewed from a distance of 2 m and had …
Human parvovirus B19 induced apoptotic bodies contain altered self-antigens that are phagocytosed by antigen presenting cells.
2013
Human parvovirus B19 (B19V) from the erythrovirus genus is known to be a pathogenic virus in humans. Prevalence of B19V infection has been reported worldwide in all seasons, with a high incidence in the spring. B19V is responsible for erythema infectiosum (fifth disease) commonly seen in children. Its other clinical presentations include arthralgia, arthritis, transient aplastic crisis, chronic anemia, congenital anemia, and hydrops fetalis. In addition, B19V infection has been reported to trigger autoimmune diseases such as systemic lupus erythematosus and rheumatoid arthritis. However, the mechanisms of B19V participation in autoimmunity are not fully understood. B19V induced chronic dise…
Functional roles of the membrane-associated AAV protein MAAP
2021
AbstractWith a limited coding capacity of 4.7 kb, adeno-associated virus (AAV) genome has evolved over-lapping genes to maximise the usage of its genome. An example is the recently found ORF in the cap gene, encoding membrane-associated accessory protein (MAAP), located in the same genomic region as the VP1/2 unique domain, but in a different reading frame. This 13 KDa protein, unique to the dependovirus genus, is not homologous to any known protein. Our studies confirm that MAAP translation initiates from the first CTG codon found in the VP1 ORF2. We have further observed MAAP localised in the plasma membrane, in the membranous structures in close proximity to the nucleus and to the nuclea…
TRE CASI DI MIOCARDITE ACUTA DA PARVOVIRUS B19
2019
L’infezione da Parvovirus B19, responsabile del “megaloeritema infettivo”, può determinare conseguenze cliniche gravi, tra le quali: la miocardite acuta, la crisi aplastica del midollo osseo e l’artrite. Esponiamo tre casi clinici di miocardite acuta secondaria a infezione da Parvovirus B19 che hanno avuto decorso sfavorevole: S, femmina di 18 mesi, M, femmina di 3 anni, A, maschio di 2 anni. Le bambine riferivano anamnesi negativa, invece A era affetto da metilmalonico aciduria. S giungeva in PS dopo tre giorni di febbre: soporosa, pallida, dispnoica e tachicardica con soffio sistolico, crepitii alle basi polmonari ed epatomegalia. M riferiva astenia e iporessia da un mese e, all’ingresso …
PARVOVIRUS INFECTION AND KAWASAKI DISEASE: ONE DISEASE FOR TWO SIBLINGS
2018
Introduction: Kawasaki disease (KD) is rarely described in siblings in the same time. In these cases, an infectious trigger must be excluded. Objectives: We describe the clinical course of two brothers who showed severe KD all at once, secondary to Parvovirus infection. Methods: A 9-month-old female showed fever, pallor, vomiting, bilateral non-secreting conjunctivitis, rash. Anamnesis revealed that 12 days before, she had fever, spontaneously resolved. At admission, 9 days after fever onset, she showed fever, conjunctivitis, pharyngitis, rash, and cervical adenopathy. Haematological parameters showed: leukocytosis, neutrophilia; anaemia; CRP: 2.31; ESR: 120. ECG and echocardiography were n…
DUE FRATELLI, IL PARVOVIRUS E DUE KAWASAKI CON FENOTIPO ATIPICO
2018
E' rara la descrizione della Malattia di Kawasaki (MK) in fratelli, ma -se presente- è necessario escludere un trigger infettivo. Riportiamo il caso di due fratelli affetti da MK esordita contemporaneamente in seguito ad un’infezione da Parvovirus. Una bambina di 9 mesi ha presentato febbre, vomito, esantema, congiuntivite non purulenta bilaterale, linfoadenite. All’anamnesi, emergeva un episodio febbrile 12 giorni prima, con risoluzione spontanea in 5 giorni. Presentava: leucocitosi neutrofila, anemia, con transaminasi, Na, albumina, creatinina, urine nella norma. PCR: 2,31 mg/dl; VES: 120. ECG ed ecocardio sono risultati nella norma, con Z-score coronarici normali. IgM anti-Parvovirus era…
Parvovirus H-1-Induced Tumor Cell Death Enhances Human Immune Response In Vitro via Increased Phagocytosis, Maturation, and Cross-Presentation by Den…
2005
Oncotropic and oncolytic viruses have attracted high attention as antitumor agents because they preferentially kill cancer cells in vitro and reduce the incidence of spontaneous, induced, or implanted animal tumors. Some autonomous parvoviruses (H-1, minute virus of mice) and derived recombinant vectors are currently under preclinical evaluation. Still not fully understood, their antitumor properties involve more than just tumor cell killing. Because wild-type parvovirus-mediated tumor cell lysates (TCLs) may trigger antigen-presenting cells (APCs) to augment the host immune repertoire, we analyzed phagocytosis, maturation, and crosspresentation of H-1-induced TCLs by human dendritic cells …
Cytoplasmic Parvovirus Capsids Recruit Importin Beta for Nuclear Delivery
2019
Parvoviruses are an important platform for gene and cancer therapy. Their cell entry and the following steps, including nuclear import, are inefficient, limiting their use in therapeutic applications. Two models exist on parvoviral nuclear entry: the classical import of the viral capsid using nuclear transport receptors of the importin (karyopherin) family or the direct attachment of the capsid to the nuclear pore complex leading to the local disintegration of the nuclear envelope. Here, by laser scanning confocal microscopy and in situ proximity ligation analyses combined with coimmunoprecipitation, we show that infection requires importin β-mediated access to the nuclear pore complex and …
The Putative Metal Coordination Motif in the Endonuclease Domain of Human Parvovirus B19 NS1 Is Critical for NS1 Induced S Phase Arrest and DNA Damage
2011
The non-structural proteins (NS) of the parvovirus family are highly conserved multi-functional molecules that have been extensively characterized and shown to be integral to viral replication. Along with NTP-dependent helicase activity, these proteins carry within their sequences domains that allow them to bind DNA and act as nucleases in order to resolve the concatameric intermediates developed during viral replication. The parvovirus B19 NS1 protein contains sequence domains highly similar to those previously implicated in the above-described functions of NS proteins from adeno-associated virus (AAV), minute virus of mice (MVM) and other non-human parvoviruses. Previous studies have show…