Molecular analysis of asymptomatic bacteriuria Escherichia coli strain VR50 reveals adaptation to the urinary tract by gene acquisition.

abstract：:The antihistoplasma activity of recombinant murine gamma interferon (rMuIFN-gamma)-treated macrophages of the RAW 264.7 cell line depends on the generation of nitric oxide (NO.) from L-arginine. Macrophages of the P388D1 cell line treated with rMuIFN-gamma do not produce NO. or inhibit the intracellular growth of Hist...

journal_title：Infection and immunity

authors： Lane TE,Otero GC,Wu-Hsieh BA,Howard DH

更新日期：1994-04-01 00:00:00

abstract：:We have examined the ability of peptidoglycan (PepG) and lipoteichoic acid (LTA) isolated from Staphylococcus aureus to induce the release of tumor necrosis factor alpha (TNF-alpha), interleukin-6 (IL-6), and IL-10 in whole human blood and identified the cellular origins of these cytokines. Both PepG and LTA induced t...

journal_title：Infection and immunity

authors： Wang JE,Jørgensen PF,Almlöf M,Thiemermann C,Foster SJ,Aasen AO,Solberg R

更新日期：2000-07-01 00:00:00

abstract：:In a cross-sectional survey of 187 Gambian children and adults, we have analyzed prevalence, fine specificity, and 19-kilodalton merozoite surface protein 1 (MSP-1(19))-specific erythrocyte invasion inhibitory activity of antibodies to MSP-1(19) but find no significant association between any of these parameters and p...

journal_title：Infection and immunity

authors： Corran PH,O'Donnell RA,Todd J,Uthaipibull C,Holder AA,Crabb BS,Riley EM

更新日期：2004-10-01 00:00:00

abstract：:CmeABC functions as a multidrug efflux pump contributing to the resistance of Campylobacter to a broad range of antimicrobials. In this study, we examined the role of CmeABC in bile resistance and its contribution to the adaptation of Campylobacter jejuni in the intestinal tract of the chicken, a natural host and a ma...

journal_title：Infection and immunity

authors： Lin J,Sahin O,Michel LO,Zhang Q

更新日期：2003-08-01 00:00:00

abstract：:The ability of various strains of rats to produce interferon in response to polyriboinosinic-polyribocytodilic acid was investigated. ACI and DA (RT-1a), BN (RT-1n), Buffalo (RT-1b), August (RT-1c), and GH (RT-1l) strains produced low levels of interferon in response to intraperitoneal administration of polyriboinosin...

journal_title：Infection and immunity

authors： Davis CT,Blankenhorn EP,Murasko DM

更新日期：1984-02-01 00:00:00

abstract：:A rapid and reproducible method of bacteriocin typing is described based on leakage of ultraviolet light-absorbing material (UVAM), detectable in supernatants of bacteriocin-sensitive cultures, by means of a spectrophotometer. The prerequisites for reproducible results, with nonsignificant fluctuations in standard err...

journal_title：Infection and immunity

authors： Farkas-Himsley H,Pagel A

更新日期：1977-04-01 00:00:00

abstract：:In evolving to an obligate intracellular niche, Chlamydia has streamlined its genome by eliminating superfluous genes as it relies on the host cell for a variety of nutritional needs like amino acids. However, Chlamydia can experience amino acid starvation when the human host cell in which the bacteria reside is expos...

journal_title：Infection and immunity

authors： Ouellette SP,Rueden KJ,Rucks EA

更新日期：2016-08-19 00:00:00

abstract：:The ability of Toxoplasma gondii tachyzoites to differentiate into latent bradyzoite forms is essential for pathogenesis of clinical disease. We examined the effects of cyclic nucleotides on T. gondii bradyzoite differentiation in vitro. Differentiation of tachyzoites to bradyzoites was measured in an immunofluorescen...

journal_title：Infection and immunity

authors： Kirkman LA,Weiss LM,Kim K

更新日期：2001-01-01 00:00:00

abstract：:Salmonellae with differences only in the O-antigenic polysaccharide of their lipopolysaccharide were previously shown to differentially activate complement via the alternative pathway, causing them to be ingested at different rates by the mouse macrophage-like cell line J774. We now show that this mechanism could expl...

journal_title：Infection and immunity

authors： Liang-Takasaki CJ,Saxén H,Mäkelä PH,Leive L

更新日期：1983-08-01 00:00:00

abstract：:We found that oral immunization with flagellum-defective mutant strains of Salmonella enterica serovar Typhimurium with the ClpXP-deficient background protected mice against oral challenge with the virulent strain. These data indicate that Salmonella flagellin is not a dominant protective antigen in oral immunization ...

journal_title：Infection and immunity

authors： Kodama C,Matsui H

更新日期：2004-04-01 00:00:00

abstract：:Colonization of the mucosa of the stomach and the duodenum by Helicobacter pylori is the major cause of acute and chronic gastroduodenal pathologies in humans. Duodenal ulcer formation strongly correlates with the expression of an antigen (CagA) that is usually coeexpressed with the vacuolating cytotoxin (VacA), a pro...

journal_title：Infection and immunity

authors： Xiang Z,Censini S,Bayeli PF,Telford JL,Figura N,Rappuoli R,Covacci A

更新日期：1995-01-01 00:00:00

abstract：:Infection with Shiga toxin (Stx)-producing bacteria and the subsequent release of Stxs and endotoxins into the bloodstream may damage blood vessels in the colon, kidneys, and central nervous system, leading to bloody diarrhea, acute renal failure, and neurological complications. The proinflammatory cytokines tumor nec...

journal_title：Infection and immunity

authors： Harrison LM,van Haaften WC,Tesh VL

更新日期：2004-05-01 00:00:00

abstract：:A recent study demonstrated that polyclonal antibodies to Rickettsia conorii and monoclonal antibodies to outer membrane proteins A (OmpA) and B (OmpB) provided effective, Fc-dependent, passive immunity, even in severe combined immunodeficient mice with an established infection. In order to determine the mechanism of ...

journal_title：Infection and immunity

authors： Feng HM,Whitworth T,Popov V,Walker DH

更新日期：2004-06-01 00:00:00

abstract：:Entamoeba histolytica virulence is related to a number of amebic components (lectins, cysteine proteinases, and amebapore) and host factors, such as intestinal bacterial flora. Trophozoites are selective in their interactions with bacteria, and the parasite recognition of glycoconjugates plays an important role in ame...

journal_title：Infection and immunity

authors： Padilla-Vaca F,Ankri S,Bracha R,Koole LA,Mirelman D

更新日期：1999-05-01 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：:Staphylococcus aureus Newman with an insertion mutation in clfB, the gene encoding clumping factor B, only marginally decreased infection rate (P>0.05) in rats with experimental endocarditis. In contrast, clfB complementation on a multicopy plasmid significantly increased infectivity (P<0.05) over the deleted mutants....

journal_title：Infection and immunity

authors： Entenza JM,Foster TJ,Ni Eidhin D,Vaudaux P,Francioli P,Moreillon P

更新日期：2000-09-01 00:00:00

abstract：:ATP and UTP have been proposed for use as therapeutic treatment of the abnormal ion transport in the airway epithelium in cystic fibrosis (CF), the most characteristic feature of which is permanent infection by Pseudomonas aeruginosa. As for diverse gram-negative bacteria, this pathogenic bacterium accumulates diffusi...

journal_title：Infection and immunity

authors： Saleh A,Figarella C,Kammouni W,Marchand-Pinatel S,Lazdunski A,Tubul A,Brun P,Merten MD

更新日期：1999-10-01 00:00:00

abstract：:Characteristics of four transmissible gastroenteritis (TGE) virus field strains (Miller, Purdue, Bl, and V203) and four cell culture-attenuated strains (Purdue, SH, CKp, and Bl) were studied to find methods of differentiation between the two groups of viruses. TGE field virus strains did not replicate as well as atten...

journal_title：Infection and immunity

authors： Hess RG,Bachmann PA

更新日期：1976-06-01 00:00:00

abstract：:Streptococcus pyogenes secretes a specific immunoglobulin G (IgG)-protease, SpeB, as well as the IgG glycan-hydrolyzing enzyme EndoS. Here we show that SpeB also degrades IgA, IgM, IgD, and IgE. We also show that EndoS only hydrolyzes the glycan moiety on native but not denatured IgG. Thus, SpeB has a broad immunoglob...

journal_title：Infection and immunity

authors： Collin M,Olsén A

更新日期：2001-11-01 00:00:00

abstract：:Mice immunized intravenously 10 days earlier (but not those immunized 2 months earlier) with an attenuated Salmonella typhimurium SL3261 aroA live vaccine and tested for delayed-type hypersensitivity by injection of crude Salmonella extracts in the footpad can die within 24 to 48 h of an unexplained allergic reaction....

journal_title：Infection and immunity

authors： Mastroeni P,Villarreal-Ramos B,Harrison JA,Demarco de Hormaeche R,Hormaeche CE

更新日期：1994-06-01 00:00:00

abstract：:The cellular origins of type I and type II interferons released into the circulation of mice with delayed hypersensitivity were investigated. We determined the effect of treatment with various immunosuppressive agents, including cyclophosphamide, cycloheximide, antithymocyte serum, and whole-body X-irradiation, on the...

journal_title：Infection and immunity

authors： Sonnenfeld G,Salvin SB,Youngner JS

更新日期：1977-11-01 00:00:00

abstract：:Tritrichomonas foetus is a serious veterinary pathogen, causing bovine trichomoniasis, a sexually transmitted disease leading to infertility and abortion. T. foetus infects the mucosal surfaces of the reproductive tract. Infection with T. foetus leads to apoptotic cell death of bovine vaginal epithelial cells (BVECs) ...

journal_title：Infection and immunity

authors： Singh BN,Lucas JJ,Hayes GR,Kumar I,Beach DH,Frajblat M,Gilbert RO,Sommer U,Costello CE

更新日期：2004-07-01 00:00:00

abstract：:C4BP (C4b-binding protein) is a high-molecular-weight plasma protein that inhibits the classical pathway of complement activation. Recent experiments have demonstrated that C4BP binds to many strains of the gram-positive bacterium Streptococcus pyogenes, a major respiratory tract pathogen. Binding to S. pyogenes was s...

journal_title：Infection and immunity

authors： Berggård K,Johnsson E,Mooi FR,Lindahl G

更新日期：1997-09-01 00:00:00

abstract：:Female LSH hamsters infected with Treponema pallidum subsp, endemicum before pregnancy or during early pregnancy transmit a form of syphilis to the fetus that is similar to human congenital syphilis. The offspring develops rhinitis, skin rash, failure to thrive, and hepatosplenomegaly. T. pallidum is detectable in the...

journal_title：Infection and immunity

authors： Kajdacsy-Balla A,Howeedy A,Bagasra O

更新日期：1993-08-01 00:00:00

abstract：:By using a suckling mouse assay, heat-stable enterotoxin (ST) was purified from the culture filtrate of Yersinia enterocolitica isolated from a diarrheal patient. The purification procedures involve ultrafiltration with an Amicon HIP-10 hollow fiber, ethanol fractionation, protamine sulfate treatment, diethylaminoethy...

journal_title：Infection and immunity

authors： Okamoto K,Inoue T,Ichikawa H,Kawamoto Y,Miyama A

更新日期：1981-02-01 00:00:00

abstract：:The virulence of Candida albicans in a mouse model of invasive candidiasis is dependent on the phospholipids phosphatidylserine (PS) and phosphatidylethanolamine (PE). Disruption of the PS synthase gene CHO1 (i.e., cho1Δ/Δ) eliminates PS and blocks the de novo pathway for PE biosynthesis. In addition, the cho1Δ/Δ muta...

journal_title：Infection and immunity

authors： Davis SE,Hopke A,Minkin SC Jr,Montedonico AE,Wheeler RT,Reynolds TB

更新日期：2014-10-01 00:00:00

abstract：:Streptococcus pneumoniae infections of the lung are associated with significant damage to the alveolar epithelium. Host phagocytes and pneumolysin, a cytolytic toxin of S. pneumoniae, are believed to contribute to this cellular damage, yet experiments in which these elements are absent demonstrate the presence of an a...

journal_title：Infection and immunity

authors： Duane PG,Rubins JB,Weisel HR,Janoff EN

更新日期：1993-10-01 00:00:00

abstract：:Mice with a null deletion mutation in the gamma interferon (IFN-gamma) receptor gene were used to study the role of IFN-gamma responsiveness during experimental pulmonary cryptococcosis. Cryptococcus neoformans was inoculated intratracheally into mice lacking the IFN-gamma receptor gene (IFN-gammaR-/-) and into contro...

journal_title：Infection and immunity

authors： Chen GH,McDonald RA,Wells JC,Huffnagle GB,Lukacs NW,Toews GB

更新日期：2005-03-01 00:00:00

abstract：:A 60-kilodalton (kDa) immunodominant antigen of Legionella pneumophila is a heat shock protein (HSP) of the GroEL class of HSPs. The gene (htpB) coding the 60-kDa protein was localized to a 3.2-kilobase DNA fragment of L. pneumophila cloned into pUC19 (pSH16) (P. S. Hoffman, C. A. Butler, and F. D. Quinn, Infect. Immu...

journal_title：Infection and immunity

authors： Hoffman PS,Houston L,Butler CA

更新日期：1990-10-01 00:00:00

abstract：:Previous studies in our laboratory have indicated that naturally resistant, inbred DBA/2J mice mount a greater serum antibody response to Pseudomonas aeruginosa 19660 than susceptible C57BL/6J mice. However, the specificity of the antibody produced was not known. The present study examines the specificity and kinetics...

journal_title：Infection and immunity

authors： Preston MJ,Berk JM,Hazlett LD,Berk RS

更新日期：1991-06-01 00:00:00