Effect of iron on yields of exotoxin A in cultures of Pseudomonas aeruginosa PA-103.

abstract：:Cure of amebic liver abscess is associated with resistance to recurrent invasive amebiasis and the development of a humoral and cell-mediated immune response. We determined whether human immune sera contain blocking antibody for the 170-kilodalton (kDa) galactose or N-acetylgalactosamine (Gal/GalNAc)-binding lectin of...

journal_title：Infection and immunity

authors： Petri WA Jr,Joyce MP,Broman J,Smith RD,Murphy CF,Ravdin JI

更新日期：1987-10-01 00:00:00

abstract：:We utilized magnetic resonance imaging to visualize lesions in the lungs of guinea pigs infected by low-dose aerosol exposure to Mycobacterium tuberculosis. Lesions were prominent in such images, and colorized three-dimensional reconstructions of images revealed a very uniform distribution in the lungs. Lesion numbers...

journal_title：Infection and immunity

authors： Kraft SL,Dailey D,Kovach M,Stasiak KL,Bennett J,McFarland CT,McMurray DN,Izzo AA,Orme IM,Basaraba RJ

更新日期：2004-10-01 00:00:00

abstract：:Nontypeable Haemophilus influenzae (NTHi) initiates infection by colonizing the upper respiratory tract and is a common cause of localized respiratory tract disease. Previous work has established that the NTHi HMW1 and HMW2 proteins are potent adhesins that mediate efficient in vitro adherence to cultured human respir...

journal_title：Infection and immunity

authors： Rempe KA,Porsch EA,Wilson JM,St Geme JW 3rd

更新日期：2016-09-19 00:00:00

abstract：:Recent reports have suggested that oral vaccination of mice against Helicobacter pylori is dependent on a Th1-mediated immune response. However, oral vaccination in mice neither induces sterilizing immunity nor leads to complete protection from disease. Therefore, in this study we investigated whether a systemic subcu...

journal_title：Infection and immunity

authors： Sommer F,Wilken H,Faller G,Lohoff M

更新日期：2004-02-01 00:00:00

abstract：:The antiinflammatory cytokine response during urosepsis was determined by measurement of concentrations of soluble tumor necrosis factor receptor (sTNFR) types I and II, interleukin 1 receptor antagonist (IL-1ra), soluble IL-1 receptor type II (sIL-1RII), and interleukin 10 in sera and urine of 30 patients with cultur...

journal_title：Infection and immunity

authors： Olszyna DP,Prins JM,Buis B,van Deventer SJ,Speelman P,van der Poll T

更新日期：1998-08-01 00:00:00

abstract：:The scrub typhus 58-kilodalton (kDa) antigen (Sta58) of Rickettsia tsutsugamushi is a major protein antigen often recognized by humans infected with scrub typhus rickettsiae. A 2.9-kilobase HindIII fragment containing a complete sta58 gene was cloned in Escherichia coli and found to express the entire Sta58 antigen an...

journal_title：Infection and immunity

authors： Stover CK,Marana DP,Dasch GA,Oaks EV

更新日期：1990-05-01 00:00:00

abstract：:Five monoclonal antibodies (MAbs) were partially characterized and tested for their ability to inhibit penetration of Madin-Darby bovine kidney (MDBK) cells by sporozoites of Eimeria bovis. By indirect fluorescent-antibody assays, all MAbs reacted with acetone-fixed sporozoites, but only two MAbs, EbS9 (immunoglobulin...

journal_title：Infection and immunity

authors： Whitmire WM,Kyle JE,Speer CA,Burgess DE

更新日期：1988-10-01 00:00:00

abstract：:We have developed an in vitro assay to study the intramacrophage replication of Mycobacterium tuberculosis or Mycobacterium bovis BCG. In this assay, extracellular mycobacterial replication was avoided by using a small infecting inoculum and a new method for efficiently removing nonphagocytocytized bacilli. The abilit...

journal_title：Infection and immunity

authors： Zlotnik A,Crowle AJ

更新日期：1982-08-01 00:00:00

abstract：:A substance with potent decomplementation activity was isolated from staphylococcal culture supernatants by polyethylene glycol precipitation, DEAE-ion-exchange and Sephacryl chromatography, and preparative sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The purified substance exhibited all the characterist...

journal_title：Infection and immunity

authors： Bhakdi S,Muhly M

更新日期：1985-01-01 00:00:00

abstract：:Mice given Mycobacterium tuberculosis bacilli via the respiratory route succumbed much sooner to infection than mice given 1,000 times more bacilli via the intravenous route. Vaccination provided increased protection to an M. tuberculosis challenge infection; however, mice infected via the respiratory route remained m...

journal_title：Infection and immunity

authors： North RJ,LaCourse R,Ryan L

更新日期：1999-04-01 00:00:00

abstract：:Evidence that the bactericidal ability and the stimulated oxidative metabolism of leukocytes appear in parallel during fetal development of the Minnesota Miniature pig has been obtained by application of the techniques applied to studies of human cells. It was demonstrated that leukocytes from 87- to 90-day fetuses we...

journal_title：Infection and immunity

authors： Holmes B,Day N,Haseman J,Good RA

更新日期：1972-02-01 00:00:00

abstract：:The in vivo induction of colony-stimulating activity (CSA) by N-acetylmuramyl-L-alanine-D-isoglutamine has been demonstrated recently. In this study we increased our understanding of this property by testing muramyl peptides of several structures and activities for their capacity to induce CSA in vivo. A comparison of...

journal_title：Infection and immunity

authors： Galelli A,Lefrancier P,Chedid L

更新日期：1984-11-01 00:00:00

abstract：:The literature on chronic mucocutaneous candidiasis contains multiple reports which suggest that loss of cell-mediated immunity in this disease may be related in part to the presence of an inhibitory factor(s) present in patient plasma. One such inhibitory factor has been suggested to be mannan polysaccharide released...

journal_title：Infection and immunity

authors： Nelson RD,Herron MJ,McCormack RT,Gehrz RC

更新日期：1984-03-01 00:00:00

abstract：:Clostridium perfringens type B causes enteritis and enterotoxemia in domestic animals. By definition, these bacteria must produce alpha toxin (CPA), beta toxin (CPB) and epsilon toxin (ETX) although most type B strains also produce perfringolysin O (PFO) and beta2 toxin (CPB2). A recently identified Agr-like quorum-se...

journal_title：Infection and immunity

authors： Chen J,McClane BA

更新日期：2012-09-01 00:00:00

abstract：:Escherichia coli strains expressing the K1 capsule are a major cause of sepsis and meningitis in human neonates. The development of these diseases is dependent on the expression of a range of virulence factors, many of which remain uncharacterized. Here, we show that all but 1 of 34 E. coli K1 neonatal isolates carrie...

journal_title：Infection and immunity

authors： McCarthy AJ,Martin P,Cloup E,Stabler RA,Oswald E,Taylor PW

更新日期：2015-09-01 00:00:00

abstract：:P6, a 16,600-dalton protein present in the outer membranes of both typeable and nontypeable strains, may be an important antigen in immunity to Haemophilus influenzae. The gene encoding P6 of a nontypeable strain of H. influenzae was cloned by using bacteriophage lambda gt11. Four recombinant phages were detected by s...

journal_title：Infection and immunity

authors： Nelson MB,Apicella MA,Murphy TF,Vankeulen H,Spotila LD,Rekosh D

更新日期：1988-01-01 00:00:00

abstract：:The cyst cell wall β-glucans of Pneumocystis have been shown to stimulate immune responses in lung epithelial cells, dendritic cells, and alveolar macrophages. Little is known about how the trophic life forms, which do not have a fungal cell wall, interact with these innate immune cells. Here, we report differences in...

journal_title：Infection and immunity

authors： Evans HM,Bryant GL 3rd,Garvy BA

更新日期：2016-11-01 00:00:00

abstract：:L929 cell populations persistently infected for more than 600 days exhibited cell cycle distributions and generation times similar to those of uninfected cells. The RNA and protein contents of these long-term-infected cells, as determined by flow cytometry and correlated with the cell cycle, were likewise approximatel...

journal_title：Infection and immunity

authors： Baca OG,Crissman HA

更新日期：1987-07-01 00:00:00

abstract：:Trehalose 6,6'-dimycolate (TDM) plays important roles in the development of granulomatous inflammation during infection with Mycobacterium spp., Rhodococcus spp., etc. To reveal the augmenting effect of TDM on vascular endothelial growth factor (VEGF) production and neovascularization, we investigated murine granuloma...

journal_title：Infection and immunity

authors： Sakaguchi I,Ikeda N,Nakayama M,Kato Y,Yano I,Kaneda K

更新日期：2000-04-01 00:00:00

abstract：:Passive protection, the administration of antibodies to prevent infection, has garnered significant interest in recent years as a potential prophylactic countermeasure to decrease the prevalence of hospital-acquired infections. Pili, polymerized protein structures covalently anchored to the peptidoglycan wall of many ...

journal_title：Infection and immunity

authors： Pinkston KL,Singh KV,Gao P,Wilganowski N,Robinson H,Ghosh S,Azhdarinia A,Sevick-Muraca EM,Murray BE,Harvey BR

更新日期：2014-04-01 00:00:00

abstract：:A water-soluble acylpolygalactosyl (APG) of 34 kDa was obtained from the Klebsiella pneumoniae membrane by alkaline hydrolysis and delipidation. APG comprises a poly(1,3)galactose chain, a core, and a lipid moiety made of a glucosamine disaccharide with two N-linked beta OH-myristates. The monocyte binding sites for A...

journal_title：Infection and immunity

authors： Hmama Z,Mey A,Normier G,Binz H,Revillard JP

更新日期：1994-05-01 00:00:00

abstract：:Activation of macrophages was assessed in strains of mice inoculated intraperitoneally with 1,000 times the 50% lethal dose of Rickettsia akari. Macrophages from mice resistant to R. akari infection (C3H/HeN, C57BL/10J, and BALB/cN) were nonspecifically tumoricidal 2 to 4 days after rickettsial inoculation. Moreover, ...

journal_title：Infection and immunity

authors： Nacy CA,Meltzer MS

更新日期：1982-06-01 00:00:00

abstract：:One of the hallmarks of Pseudomonas aeruginosa infection in cystic fibrosis (CF) patients is very-high-cell-density (HCD) replication in the lung, allowing this bacterium to induce virulence controlled by the quorum-sensing systems. However, the nutrient sources sustaining HCD replication in this chronic infection are...

journal_title：Infection and immunity

authors： Son MS,Matthews WJ Jr,Kang Y,Nguyen DT,Hoang TT

更新日期：2007-11-01 00:00:00

abstract：:The development and course of normally lethal parasitemias in mice inoculated intraperitoneally with erythrocytic stages of Plasmodium yoelii or Plasmodium berghei were markedly affected by treatment with the antilymphoid drug cyclosporin A (CS-A). When the first of four daily subcutaneous 25-mg/kg doses of CS-A was g...

journal_title：Infection and immunity

authors： Nickell SP,Scheibel LW,Cole GA

更新日期：1982-09-01 00:00:00

abstract：:Streptococcus pneumoniae type 14 capsular polysaccharide-bovine serum albumin (S14PS-BSA) conjugates were prepared by water-soluble-carbodiimide-mediated condensation with or without the use of N-hydroxy-sulfosuccinimide. The immunogenicities of the capsular polysaccharide (S14PS) and of the conjugates were studied in...

journal_title：Infection and immunity

authors： Verheul AF,Versteeg AA,De Reuver MJ,Jansze M,Snippe H

更新日期：1989-04-01 00:00:00

abstract：:The effects of pathologically relevant concentrations (0.38 to 12.5 microM) of the proinflammatory, Pseudomonas aeruginosa-derived pigment 1-hydroxyphenazine (1-hp) on Ca2+ metabolism and intracellular cyclic AMP (cAMP) in N-formyl-L-methionyl-L-leucyl-L-phenylalanine (FMLP; 1 microM)-activated human neutrophils, as w...

journal_title：Infection and immunity

authors： Ramafi G,Anderson R,Theron A,Feldman C,Taylor GW,Wilson R,Cole PJ

更新日期：1999-10-01 00:00:00

abstract：:A major ceramide monohexoside (CMH) was purified from lipidic extracts of Cryptococcus neoformans. This molecule was analyzed by high-performance thin-layer chromatography (HPTLC), gas chromatography coupled with mass spectrometry, and fast atom bombardment-mass spectrometry. The cryptococcal CMH is a beta-glucosylcer...

journal_title：Infection and immunity

authors： Rodrigues ML,Travassos LR,Miranda KR,Franzen AJ,Rozental S,de Souza W,Alviano CS,Barreto-Bergter E

更新日期：2000-12-01 00:00:00

abstract：:Antigen-specific T-cell responses and histopathological changes were studied in mice experimentally inoculated with Borrelia burgdorferi B31. Inbred mice with different H-2 haplotypes and/or different genetic backgrounds were inoculated with B. burgdorferi organisms and tested for antigen-specific T-cell responses in ...

journal_title：Infection and immunity

authors： Schaible UE,Kramer MD,Justus CW,Museteanu C,Simon MM

更新日期：1989-01-01 00:00:00

abstract：:A preparation procedure for scanning electron microscopy was developed by which gononcoccal colonies can be studied directly on the agar surface. After glutaraldehyde fixation directly in petri dishes, small agar pieces were cut out and dehydrated stepwise in increasing concentrations of ethanol. The blocks were there...

journal_title：Infection and immunity

authors： Elmros T,Hörstedt P,Winblad B

更新日期：1975-09-01 00:00:00

abstract：:Two distinct and complementary pathways, one mediated by perforin and the other dependent upon CD95 (Fas), effect cell-mediated cytotoxicity. We examined the relative roles of these pathways in host defenses against the intracellular bacterial pathogen Listeria monocytogenes by using murine listeriosis as a model syst...

journal_title：Infection and immunity

authors： Jensen ER,Glass AA,Clark WR,Wing EJ,Miller JF,Gregory SH

更新日期：1998-09-01 00:00:00