Correlation of immunological responsiveness with lymphocyte changes in chickens infected with Marek's disease.

abstract：:Levels of the serum opsonin mannan-binding lectin (MBL) were directly correlated with the probability of developing visceral leishmaniasis. Monocytes infected with MBL-opsonized Leishmania chagasi promastigotes secreted higher levels of tumor necrosis factor alpha and interleukin-6 than cells infected with nonopsonize...

journal_title：Infection and immunity

authors： Santos IK,Costa CH,Krieger H,Feitosa MF,Zurakowski D,Fardin B,Gomes RB,Weiner DL,Harn DA,Ezekowitz RA,Epstein JE

更新日期：2001-08-01 00:00:00

abstract：:Vibrio cholerae neuraminidase (NANase) is hypothesized to act synergistically with cholera toxin (CT) and increase the severity of a secretory response by increasing the binding and penetration of CT to enterocytes. To test this hypothesis, the NANase gene (nanH) from V. cholerae Ogawa 395 was first cloned and sequenc...

journal_title：Infection and immunity

authors： Galen JE,Ketley JM,Fasano A,Richardson SH,Wasserman SS,Kaper JB

更新日期：1992-02-01 00:00:00

abstract：:Cell-free hemoglobin (Hb) is being developed as an erythrocyte substitute. We have previously demonstrated that cell-free Hb is an endotoxin-binding protein which disaggregates endotoxin and subsequently increases the biological activity of endotoxin in several in vitro assays. Because much of the morbidity and mortal...

journal_title：Infection and immunity

authors： Su D,Roth RI,Yoshida M,Levin J

更新日期：1997-04-01 00:00:00

abstract：:Saliva-binding molecules of Streptococcus sanguis and their receptors were investigated. Streptococcal cell surfaces were extracted with a barbital buffer and examined immunochemically. Strains G9B and Blackburn, which adhere specifically to saliva-coated hydroxyapatite via immunologically related adhesins, possess 80...

journal_title：Infection and immunity

authors： Lamont RJ,Rosan B,Murphy GM,Baker CT

更新日期：1988-01-01 00:00:00

abstract：:Neisseria gonorrhoeae is an obligate human pathogen that causes the common sexually transmitted infection gonorrhea. Gonococcal infections cause significant morbidity, particularly among women, as the organism ascends to the upper reproductive tract, resulting in pelvic inflammatory disease, ectopic pregnancy, and inf...

journal_title：Infection and immunity

authors： Hollander A,Mercante AD,Shafer WM,Cornelissen CN

更新日期：2011-12-01 00:00:00

abstract：:The reproducibility of an experimental result is a fundamental assumption in science. Yet, results that are merely confirmatory of previous findings are given low priority and can be difficult to publish. Furthermore, the complex and chaotic nature of biological systems imposes limitations on the replicability of scie...

journal_title：Infection and immunity

authors： Casadevall A,Fang FC

更新日期：2010-12-01 00:00:00

abstract：:Little is known about Zn homeostasis in Yersinia pestis, the plague bacillus. The Znu ABC transporter is essential for zinc (Zn) uptake and virulence in a number of bacterial pathogens. Bioinformatics analysis identified ZnuABC as the only apparent high-affinity Zn uptake system in Y. pestis. Mutation of znuACB caused...

journal_title：Infection and immunity

authors： Desrosiers DC,Bearden SW,Mier I Jr,Abney J,Paulley JT,Fetherston JD,Salazar JC,Radolf JD,Perry RD

更新日期：2010-12-01 00:00:00

abstract：:Proteolysis is a common microbial virulence mechanism that enables the destruction of host tissue and evasion from host defense mechanisms. Antimicrobial peptides, also known as host defense peptides, are effector molecules of the innate immunity that demonstrate a broad range of antimicrobial and immunoregulatory act...

journal_title：Infection and immunity

authors： Gutner M,Chaushu S,Balter D,Bachrach G

更新日期：2009-12-01 00:00:00

abstract：:Ultrastructural immunoperoxidase studies were done in spinal cords of mice infected with wild type vesicular stomatitis virus or its temperature-sensitive (ts) mutant G31. Infected neurons showed subplasmalemmal staining of viral antigen and staining of viral particles budding from the neuronal membrane in wild-type v...

journal_title：Infection and immunity

authors： Dal Canto MC,Rabinowitz SG,Johnson TC,Hughes JV

更新日期：1979-04-01 00:00:00

abstract：:Inoculation of herpes simplex virus on the forehead and/or snout of hairless mice resulted in a significantly lower mortality rate than inoculation of the skin in the lumbosacral area. Latent herpes simplex virus infections were detected in all forehead-inoculated and in 90% of snout-inoculated mice. Phosphonoacetic a...

journal_title：Infection and immunity

authors： Klein RJ,Friedman-Kien AE,Yellin PB

更新日期：1978-04-01 00:00:00

abstract：:The unique permissiveness of A/J mouse macrophages for replication of Legionella pneumophila is caused by a deficiency in the Nod-like receptor (NLR) protein and intracellular sensor for L. pneumophila flagellin (Naip5). The signaling pathways and proteins activated by Naip5 sensing in macrophages were investigated. T...

journal_title：Infection and immunity

authors： Fortier A,Doiron K,Saleh M,Grinstein S,Gros P

更新日期：2009-11-01 00:00:00

abstract：:The ultrastructural appearance of the "halozone" formed at the interface between the spotted fever agent Rickettsia rickettsii and the cytoplasm of persistently infected cultured vole cells (Microtus pennsylvanicus) was studied by transmission electron microscopy. In sections of epoxy-embedded specimens stained with u...

journal_title：Infection and immunity

authors： Todd WJ,Burgdorfer W,Wray GP

更新日期：1983-09-01 00:00:00

abstract：:Strains of Bacteroides fragilis associated with diarrhea in children (termed enterotoxigenic B. fragilis, or ETBF) produce a heat-labile ca. 20-kDa protein toxin (BFT). The purpose of this study was to examine the activity of BFT on polarized monolayers of human intestinal epithelial cells (T84 cells). In Ussing chamb...

journal_title：Infection and immunity

authors： Chambers FG,Koshy SS,Saidi RF,Clark DP,Moore RD,Sears CL

更新日期：1997-09-01 00:00:00

abstract：:Streptococcus mutans, a major pathogen of dental caries, is considered one of the causative agents of infective endocarditis (IE). Recently, bacterial DNA encoding 120-kDa cell surface collagen-binding proteins (CBPs) has frequently been detected from S. mutans-positive IE patients. In addition, some of the CBP-positi...

journal_title：Infection and immunity

authors： Otsugu M,Nomura R,Matayoshi S,Teramoto N,Nakano K

更新日期：2017-11-17 00:00:00

abstract：:gammaG-globulin from nonimmunized rabbits and from rabbits immunized with various bacteria reacted in the immunofluorescence technique with protein A-containing Staphylococcus aureus. Pepsin digestion of most immunoglobulin preparations eliminated the reaction, thus showing that the Fc fragment is involved and that th...

journal_title：Infection and immunity

authors： Forsgren A,Forsum U

更新日期：1970-10-01 00:00:00

abstract：:In order to approximate and adhere to mucosal epithelial cells, Candida must traverse the overlying mucus layer. Interactions of Candida species with mucin and human buccal epithelial cells (BECs) were thus investigated in vitro. Binding of the Candida species to purified small intestinal mucin showed a close correlat...

journal_title：Infection and immunity

authors： de Repentigny L,Aumont F,Bernard K,Belhumeur P

更新日期：2000-06-01 00:00:00

abstract：:Herein we report an important role for the ferric uptake regulator (Fur) in the resistance of Salmonella enterica serovar Typhimurium to the reactive nitrogen species produced by inducible nitric oxide (NO) synthase in an NRAMP1(r) murine model of acute systemic infection. The expression of fur protected Salmonella gr...

journal_title：Infection and immunity

authors： Husain M,Jones-Carson J,Liu L,Song M,Saah JR,Troxell B,Mendoza M,Hassan H,Vázquez-Torres A

更新日期：2014-01-01 00:00:00

abstract：:We examined the secretion of antimicrobial proteins and peptides into surgically isolated and continuously perfused segments of rat small intestine. Up to nine discrete antimicrobial molecules appeared in the intestinal perfusates following intravenous administration of bethanechol, a cholinergic agonist, or intralume...

journal_title：Infection and immunity

authors： Qu XD,Lloyd KC,Walsh JH,Lehrer RI

更新日期：1996-12-01 00:00:00

abstract：:Mapping vectors containing antibiotic resistance markers inserted adjacent to or within different cloned genes from Streptococcus mutans were used to determine the relative positions of these genes on the chromosome. The gtfA, ftf, and scrB genes were inserted into streptococcal mapping vector pVA891 adjacent to an Em...

journal_title：Infection and immunity

authors： Perry D,Kuramitsu HK

更新日期：1989-03-01 00:00:00

abstract：:Mutant cultures that lacked the ability to produce filamentous hemagglutinin were obtained by UV irradiation of Bordetella pertussis strain 18-323. Various biological activities of these mutants were compared with those of the parent culture. It was found that the leukocytosis-promoting, histamine-sensitizing, and mou...

journal_title：Infection and immunity

authors： Watanabe M,Nakase Y

更新日期：1982-03-01 00:00:00

abstract：:The flavivirus dengue and the arenavirus Junin are both associated with a hemorrhagic shock syndrome in man. We have demonstrated the replication of these viruses in vitro in both rabbit and human endothelial cells by viral titers and immunofluorescent antibody studies. Rabbit endothelium established in continuous cul...

journal_title：Infection and immunity

authors： Andrews BS,Theofilopoulos AN,Peters CJ,Loskutoff DJ,Brandt WE,Dixon FJ

更新日期：1978-06-01 00:00:00

abstract：:Cell surface protein SSP-5 in the oral bacterium Streptococcus gordonii M5 binds human salivary agglutinin in a Ca(2+)-dependent reaction (D.R. Demuth, E.E. Golub, and D. Malamud, J. Biol. Chem. 265:7120-7126, 1990). The region of the gene encoding an N-terminal segment of a related polypeptide (SspA) in S. gordonii D...

journal_title：Infection and immunity

authors： Jenkinson HF,Terry SD,McNab R,Tannock GW

更新日期：1993-08-01 00:00:00

abstract：:Phytohemagglutinin is able to trigger interferon synthesis in spleen cell cultures from nude (nu/nu) mice as effectively as in splenic cell cultures from haired, control (nu/+), thymus-bearing mice. A minor theta-bearing cell population present in the spleen of nude mice appears essential to phytohemagglutinin interfe...

journal_title：Infection and immunity

authors： Wietzerbin J,Stefanos S,Falcoff R,Lucero M,Catinot L,Falcoff E

更新日期：1978-09-01 00:00:00

abstract：:In mice infected with virulent blood (trypomastigote) forms of Trypanosoma cruzi, complement depletion with cobra venom factor caused a marked exacerbation of the disease evidenced by significantly increased parasitemia levels and early mortality as compared with those of untreated infected animals. The effect was gre...

journal_title：Infection and immunity

authors： Budzko DB,Pizzimenti MC,Kierszenbaum F

更新日期：1975-01-01 00:00:00

abstract：:Mutant analysis was used to identify Moraxella catarrhalis gene products necessary for biofilm development in a crystal violet-based assay involving 24-well tissue culture plates. The wild-type M. catarrhalis strains that formed the most extensive biofilms in this system proved to be refractory to transposon mutagenes...

journal_title：Infection and immunity

authors： Pearson MM,Laurence CA,Guinn SE,Hansen EJ

更新日期：2006-03-01 00:00:00

abstract：:Sonicated preparations of capsulated Haemophilus influenzae type b, two of its spontaneous mutants, one containing patches of capsules (class I variant) and the other noncapsulated (class II variant), and a noncapsulated strain of H. influenzae type d were analyzed by crossed-immunoelectrophoresis using unadsorbed ant...

journal_title：Infection and immunity

authors： Buckmire FL

更新日期：1976-06-01 00:00:00

abstract：:Under certain circumstances, soluble antigens, particulate antigens, and/or microorganisms have been shown to bind to primate erythrocytes via complement receptor 1 (CR1) in the presence of specific antibodies and complement. This immune adherence reaction, specific for CR1, can lead to neutralization of antigens in t...

journal_title：Infection and immunity

authors： Powers JH,Buster BL,Reist CJ,Martin E,Bridges M,Sutherland WM,Taylor RP,Scheld WM

更新日期：1995-04-01 00:00:00

abstract：:A main feature in the pathogenesis of bacterial endocarditis is the activation of the coagulation system via the extrinsic pathway, resulting in the formation of infected endocardial vegetations. Earlier studies gave indirect evidence that monocytes play an important role in the procoagulant response during the course...

journal_title：Infection and immunity

authors： Bancsi MJ,Veltrop MH,Bertina RM,Thompson J

更新日期：1996-02-01 00:00:00

abstract：:Spleen cell cultures from guinea pigs given legionella pneumophila vaccine in complete Freund adjuvant or as a sublethal infection were inhibited in their migration activity in vitro when incubated with specific antigen. Both direct and indirect migration inhibition assays revealed sensitization of the guinea pigs to ...

journal_title：Infection and immunity

authors： Friedman H,Widen R,Lee I,Klein T

更新日期：1983-09-01 00:00:00

abstract：:Disruption of neutrophils causes the release of a cytoplasmic protein which can inhibit the growth of Candida albicans without killing the organisms. The present study was undertaken with a combined system in which candidacidal and candidastatic activities of human neutrophils could be compared. In this system it was ...

journal_title：Infection and immunity

authors： Sohnle PG,Collins-Lech C

更新日期：1990-08-01 00:00:00