Search results for " Chor"

CD133 expression in placenta chorioangioma presenting as a giant asymptomatic mass

2021

Background: Placental chorioangioma is the most common benign non-trophoblastic neoplasm of the placenta. Its clinical relevance lies in the size of the tumor since larger masses cause pregnancy complications, including an unfavorable neonatal outcome. Case presentation: We report the case of a 34-year-old second gravida and nullipara at the 35th week of gestation, admitted to the gynecological department for antibiotic-resistant fever. The cardiotocography performed during hospitalization showed an abnormal fetal pattern. A 2250 g newborn was delivered by cesarean section. No complications were observed during childbirth and postpartum was insignificant. On gross inspection a white fleshy …

Prospero hierae (Hyacinthaceae), a New Species from Marettimo Island (Sicily)

2009

A new species, Prospero hierae C. Brullo, S. Brullo, Giusso, Pavone & Salmeri (Hyacinthaceae), from Island of Marettimo (Egadi Archipelago, Sicily) is described and illustrated. Its chromosome number (2n = 14), leaf anatomy and ecology are examined. This small species with glaucous, adaxially flat leaves is closely related with the taxa belonging to the Prospero autumnale group and, in particular, it shows more affinities with P. corsicum, P. pulchellum and P. minimum.

2004

Here we present a comprehensive molecular mapping of virus-induced autoimmune B cell responses obtained by serological identification of antigens by recombinant expression cloning analysis. Immunoscreening of cDNA expression libraries of various organs (lung, liver, and spleen) using sera from mice infected with cytopathic (vaccinia virus [VV]) or noncytopathic (lymphocytic choriomeningitis virus [LCMV]) viruses revealed a broad specificity of the elicited autoantibody response. Interestingly, the majority of the identified autoantigens have been previously described as autoantigens in humans. We found that induction of virus-induced autoantibodies of the immunoglobulin G class largely depe…

Cercospora leaf spot of sugar beet (Cercospora beticola Sacc.) Part I. Biology and occurrence

2019

Cercospora beticola Sacc. jest najgroźniejszym patogenem liści buraka cukrowego we wszystkich rejonach uprawy tej rośliny. W niniejszym opracowaniu zebrano najważniejszą wiedzę dotyczącą pozycji systematycznej, biologii, morfologii grzyba oraz jego żywicieli. Opisano warunki, w których dochodzi do infekcji roślin gospodarza oraz wpływ warunków atmosferycznych na rozwój choroby na roślinach. Podano podstawowe informacje na temat rozprzestrzeniania się oraz zimowania C. beticola w warunkach naturalnych. Opisano wpływ na rośliny gospodarza oraz powodowane straty w plonie korzeni i cukru. Całość zagadnienia omówiono w oparciu o polską i światową szeroką bazę literaturową.

Micromechanical forces regulate vascular patterning in the chick chorioallantoic membrane (15.3)

2014

A critical assessment of methods for the determination of the shear stress amplitude in multiaxial fatigue criteria belonging to critical plane class

2015

Abstract Multiaxial high cycle fatigue criteria based on the critical plane approach necessitate unambiguous definitions of the amplitude and mean value of the shear stress (τa and τm) acting on the material planes. Four of the existing definitions relate the values of τa and τm to a geometrical element of the curve described by the tip of the shear stress vector (curve Ψ), respectively, the radius of the Minimum Circumscribed Circle, the Longest Chord, the Longest Projection, the diagonal of the Maximum Rectangular Hull (MRH). In this paper a critical assessment of the above definitions is proposed, focusing on that based on the concept of MRH, which is the most recently developed. The mai…

Una aproximación a la Electra de Sófocles desde el prólogo y la párodos

2008

Sófocles se esfuerza por lograr una integración mayor del coro en la acción dramática, a la vez que focaliza la acción del héroe en el marco en el que éste se mueve. En los primeros versos de esta tragedia, en particular en el prólogo y en la párodos, a través de las estructuras iterativas, podemos vislumbrar las claves de los conflictos profundos de esta saga que aflorarán finalmente en la forma de matricidio. Y desde esos primeros versos, esas claves se proyectan a otros lugares de la tragedia formando un tejido complejo que arroja no poca luz sobre ella. Sophocles strove to bring about a greater integration of the chorus into the dramatic action at the same time as he focused the action …

H-2-linked murine cytotoxic T cell responses specific for sendai virus-infected cells

1978

CBA (H-2k) mouse-derived lymphochoriomeningitis virus and herpes simplex virus-specific cytotoxic T lymphocytes lyse virus-infected target cells compatible on either the H-2k or H-2D region. In contrast, CBA, C3H and AKR (H-2k) mouse-derived sendai virus-specific cytotoxic T lymphocytes (CTL) fail to lyse H-2D-compatible virus-infected cells. A similar lack of H-2D region-associated lytic activity was found with C57BL/6 and C57BL/10 (H-2b) mice as well as with the recombinants B10.A (2R) [Kb-Db] and B10.A (4R) [Kk-Db]. On the other hand, BALB/c (H-2d) mice and A/J (H-2a) mice do generate H-2Dd-associated sendai virus-specific CTL. These results are in contrast to those obtained with (CBA X …

Type I Interferon Protects Antiviral CD8+ T Cells from NK Cell Cytotoxicity

2014

Summary Despite development of new antiviral drugs, viral infections are still a major health problem. The most potent antiviral defense mechanism is the innate production of type I interferon (IFN-I), which not only limits virus replication but also promotes antiviral T cell immunity through mechanisms, which remain insufficiently studied. Using the murine lymphocytic choriomeningitis virus model system, we show here that IFN-I signaling on T cells prevented their rapid elimination in vivo. Microarray analyses uncovered that IFN-I triggered the expression of selected inhibitory NK-cell-receptor ligands. Consequently, T cell immunity of IFN-I receptor (IFNAR)-deficient T cells could be rest…

Molecular Characterization of Virus-induced Autoantibody Responses

2004

Here we present a comprehensive molecular mapping of virus-induced autoimmune B cell responses obtained by serological identification of antigens by recombinant expression cloning analysis. Immunoscreening of cDNA expression libraries of various organs (lung, liver, and spleen) using sera from mice infected with cytopathic (vaccinia virus [VV]) or noncytopathic (lymphocytic choriomeningitis virus [LCMV]) viruses revealed a broad specificity of the elicited autoantibody response. Interestingly, the majority of the identified autoantigens have been previously described as autoantigens in humans. We found that induction of virus-induced autoantibodies of the immunoglobulin G class largely depe…