Inhibition of gingival fibroblast growth by Bacteroides gingivalis.

abstract：:As an opportunistic bacterial pathogen, Pseudomonas aeruginosa mainly affects immunocompromised individuals as well as patients with cystic fibrosis. In a previous study, we showed that ExoS of P. aeruginosa, when injected into host cells through a type III secretion apparatus, functions as an effector molecule to tri...

journal_title：Infection and immunity

authors： Jia J,Alaoui-El-Azher M,Chow M,Chambers TC,Baker H,Jin S

更新日期：2003-06-01 00:00:00

abstract：:The antigenic cross-reactivity between Treponema pallidum and several pathogenic members of the family Spirochaetaceae was examined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and Western blotting techniques. Blots of T. pallidum antigens were incubated with antiserum from rabbits infected or immunize...

journal_title：Infection and immunity

authors： Baker-Zander SA,Lukehart SA

更新日期：1984-10-01 00:00:00

abstract：:Acute lethality was induced in rabbits by the sequential injection of Propionibacterium acnes and lipopolysaccharide (LPS). P. acnes induced the infiltration of inflammatory cells into the liver lobules during the early phase, and LPS in the late phase caused death in association with pathological changes mimicking he...

journal_title：Infection and immunity

authors： Ikeda N,Mukaida N,Kaneko S,Fujioka N,Su S,Nariuchi H,Unoura M,Harada K,Nakanuma Y,Kobayashi K

更新日期：1995-12-01 00:00:00

abstract：:Resequencing estA3, an allele of the methanol-soluble heat-stable enterotoxin of Escherichia coli showed that the proline triplet 19 is in fact an alanine codon; thus, estA alleles 3 and 4 were shown to be identical. Resequencing has also shown that the carboxy terminus of another allele, estA2, is not the previously ...

journal_title：Infection and immunity

authors： Guzman-Verduzco LM,Kupersztoch YM

更新日期：1989-02-01 00:00:00

abstract：:Streptococcus pneumoniae is the most frequent microbe causing middle ear infection. The pathophysiology of pneumococcal otitis media has been characterized by measurement of local inflammatory mediators such as inflammatory cells, lysozyme, oxidative metabolic products, and inflammatory cytokines. The role of cytokine...

journal_title：Infection and immunity

authors： Sato K,Liebeler CL,Quartey MK,Le CT,Giebink GS

更新日期：1999-04-01 00:00:00

abstract：:Acquisition of genomic elements by horizontal gene transfer represents an important mechanism in the evolution of bacterial species. Pathogenicity islands are a subset of horizontally acquired elements present in various pathogens. These elements are frequently located adjacent to tRNA genes. We performed a comparativ...

journal_title：Infection and immunity

authors： Hansen-Wester I,Hensel M

更新日期：2002-05-01 00:00:00

abstract：:Clostridium difficile is recognized as the major cause of antibiotic-associated colitis. C. difficile produces two toxins, A (enterotoxin) and B (cytotoxin), that are implicated in the pathogenesis of the colitis. We examined the dose responses, time course, and synergism of these two toxins in ligated rabbit intestin...

journal_title：Infection and immunity

authors： Lima AA,Lyerly DM,Wilkins TD,Innes DJ,Guerrant RL

更新日期：1988-03-01 00:00:00

abstract：:We developed a porcine dermal explant model to determine the extent to which Staphylococcus aureus biofilm communities deplete oxygen, change pH, and produce damage in underlying tissue. Microelectrode measurements demonstrated that dissolved oxygen (DO) in biofilm-free dermal tissue was 4.45 ± 1.17 mg/liter, while DO...

journal_title：Infection and immunity

authors： Lone AG,Atci E,Renslow R,Beyenal H,Noh S,Fransson B,Abu-Lail N,Park JJ,Gang DR,Call DR

更新日期：2015-06-01 00:00:00

abstract：:Zoonotic infections caused by Salmonella enterica serovar Typhimurium pose a constant threat to consumer health, with the pig being a particularly major source of multidrug-resistant isolates. Vaccination, as a promising approach to reduce colonization and shedding, has been scarcely used, as it interferes with curren...

journal_title：Infection and immunity

authors： Selke M,Meens J,Springer S,Frank R,Gerlach GF

更新日期：2007-05-01 00:00:00

abstract：:Escherichia coli and other members of the family Enterobacteriaceae express surface fibrillar structures, fimbriae, that promote bacterial adhesion to host receptors. Type 1 fimbriae possess a lectinlike component, FimH, that is commonly thought to cause binding to mannose-containing oligosaccharides of host receptors...

journal_title：Infection and immunity

authors： Sokurenko EV,Courtney HS,Abraham SN,Klemm P,Hasty DL

更新日期：1992-11-01 00:00:00

abstract：:Malaria infection treatment vaccine (ITV) is a promising strategy to induce homologous and heterologous protective immunity against the blood stage of the parasite. However, the underlying mechanism of protection remains largely unknown. Here, we found that a malaria-specific antibody (Ab) could mediate the protective...

journal_title：Infection and immunity

authors： Liu T,Lu X,Zhao C,Fu X,Zhao T,Xu W

更新日期：2015-05-01 00:00:00

abstract：:Pneumolysin is a 471-amino-acid toxin produced by Streptococcus pneumoniae which has both cytolytic and complement activation properties. We have constructed a derivative of the type 2 S. pneumoniae strain D39 in which the portion of the pneumolysin gene encoding amino acids 55 to 437 has been deleted in-frame. The vi...

journal_title：Infection and immunity

authors： Berry AM,Ogunniyi AD,Miller DC,Paton JC

更新日期：1999-02-01 00:00:00

abstract：:A toxin associated with Toxoplasma gondii infection was obtained from the trophozoites and culture medium used to propagate the parasite in cell cultures. The toxin, named Toxofactor (TF), administered parenterally or nonparenterally in adult mice, produces transient symptoms of lethargy, ruffled fur, and body weight ...

journal_title：Infection and immunity

authors： Grimwood B,O'Connor G,Gaafar HA

更新日期：1983-12-01 00:00:00

abstract：:Bovine septicemic Escherichia coli 31A agglutinates bovine, rabbit, and human erythrocytes and adheres in vitro to the brush border of bovine or ovine intestinal epithelial cells and to the human colon carcinoma Caco-2 cell line. The adhesion and hemagglutination of E. coli 31A are mediated by a chromosome-encoded fim...

journal_title：Infection and immunity

authors： Bertin Y,Girardeau JP,Darfeuille-Michaud A,Contrepois M

更新日期：1996-01-01 00:00:00

abstract：:Antibiotics suppressed development of aster yellows (AY) disease symptoms in plants of china aster [Callistephus chinensis (L.) Nees.] and annual chrysanthemum (Chrysanthemum carinatum, Schousb.). When inoculated chrysanthemum plants were treated by any of several techniques with tetracycline antibiotics or chloramphe...

journal_title：Infection and immunity

authors： Davis RE,Whitcomb RF

更新日期：1970-08-01 00:00:00

abstract：:Escherichia coli heat-stable enterotoxin (ST) appears to cause intestinal fluid secretion by activating intestinal particulate guanylate cyclase. Recent studies suggest that chlorpromazine and quinacrine reduce the intestinal secretory response to ST and activation of guanylate cyclase by ST. We have examined the effe...

journal_title：Infection and immunity

authors： Greenberg RN,Murad F,Guerrant RL

更新日期：1982-02-01 00:00:00

abstract：:Whooping cough results from infection of the respiratory tract with Bordetella pertussis, and the secreted adenylate cyclase toxin (ACT) is essential for the bacterium to establish infection. Despite extensive study of the mechanism of ACT cytotoxicity and its effects over a range of concentrations in vitro, ACT has n...

journal_title：Infection and immunity

authors： Eby JC,Gray MC,Warfel JM,Paddock CD,Jones TF,Day SR,Bowden J,Poulter MD,Donato GM,Merkel TJ,Hewlett EL

更新日期：2013-05-01 00:00:00

abstract：:Clostridium perfringens type A food poisoning is the second most commonly identified bacterial food-borne illness. Sporulation contributes to this disease in two ways: (i) most food-poisoning strains form exceptionally resistant spores to facilitate their survival of food-associated stresses, and (ii) the enterotoxin ...

journal_title：Infection and immunity

authors： Li J,McClane BA

更新日期：2010-10-01 00:00:00

abstract：:We show here that Helicobacter pylori broth culture supernatants disrupt the actin cytoskeleton of epithelial cell lines, leading to cell rounding and apoptosis through anoikis. We demonstrate that there are marked quantitative differences between strains and that there are different cell line sensitivities. By constr...

journal_title：Infection and immunity

authors： Bebb JR,Letley DP,Rhead JL,Atherton JC

更新日期：2003-06-01 00:00:00

abstract：:Cattle are an important reservoir of Shiga toxin-producing enterohemorrhagic Escherichia coli (EHEC) O157:H7 strains, foodborne pathogens that cause hemorrhagic colitis and hemolytic uremic syndrome in humans. EHEC O157:H7 strains are not pathogenic in calves >3 weeks old. Our objective was to determine if EHEC O157:H...

journal_title：Infection and immunity

authors： Dean-Nystrom EA,Bosworth BT,Cray WC Jr,Moon HW

更新日期：1997-05-01 00:00:00

abstract：:During an etiological study of Kawasaki disease (mucocutaneous lymph node syndrome [MCLS]), we found that dominant viridans streptococcal strains on tooth surfaces and in the throat of both MCLS patients and non-MCLS control children formed erythrogenic and biologically active, extracellular products. In this study, w...

journal_title：Infection and immunity

authors： Takada H,Kawabata Y,Tamura M,Matsushita K,Igarashi H,Ohkuni H,Todome Y,Uchiyama T,Kotani S

更新日期：1993-12-01 00:00:00

abstract：:Recent epidemiological observations suggest that clinical evolution of Plasmodium falciparum infections might be influenced by the concurrent presence of another Plasmodium species, and such mixed-species infections are now known to occur frequently in residents of most areas of endemicity. We used mice infected with ...

journal_title：Infection and immunity

authors： Voza T,Vigário AM,Belnoue E,Grüner AC,Deschemin JC,Kayibanda M,Delmas F,Janse CJ,Franke-Fayard B,Waters AP,Landau I,Snounou G,Rénia L

更新日期：2005-08-01 00:00:00

abstract：:Most patients with juvenile periodontitis manifest serum antibodies, sometimes at very high titers, to antigens of Actinobacillus actinomycetemcomitans, but the antigens inducing the immune response have been only partly characterized. We separated A. actinomycetemcomitans serotype b cells into protein, lipopolysaccha...

journal_title：Infection and immunity

authors： Page RC,Sims TJ,Engel LD,Moncla BJ,Bainbridge B,Stray J,Darveau RP

更新日期：1991-10-01 00:00:00

abstract：:A major obstacle to studying the functions of particular gene products in the mouse-tick infectious cycle of Borrelia burgdorferi has been an inability to knock out genes in pathogenic strains. Here, we investigated conditions for site-directed mutagenesis in B31 MI, the low-passage-number, infectious B. burgdorferi s...

journal_title：Infection and immunity

authors： Elias AF,Stewart PE,Grimm D,Caimano MJ,Eggers CH,Tilly K,Bono JL,Akins DR,Radolf JD,Schwan TG,Rosa P

更新日期：2002-04-01 00:00:00

abstract：:Time-lapse cinematography was used to study the growth cycle of Chlamydia trachomatis in primary cell cultures of human amnion. Twelve preterm and twelve term placentas were obtained within 8 h of delivery, and epithelial cells were dissociated from the amniotic membranes by trypsinization and grown in Rose chambers. ...

journal_title：Infection and immunity

authors： Neeper ID,Patton DL,Kuo CC

更新日期：1990-07-01 00:00:00

abstract：:We have isolated full-length cDNAs encoding two distinct types of CuZn superoxide dismutases (SODs) from the filarial nematode parasite Brugia pahangi. The derived amino acid sequences suggested that one class of cDNAs represented a cytoplasmic form of SOD and the second class represented an extracellular (EC) variant...

journal_title：Infection and immunity

authors： Tang L,Ou X,Henkle-Dührsen K,Selkirk ME

更新日期：1994-03-01 00:00:00

abstract：:Group A streptococci of M protein type 5 have been epidemiologically related to acute rheumatic fever in a number of reported outbreaks. Preliminary bacteriological evidence suggests that M5 may be an important "rheumatogenic" type in Santiago, Chile. To assess further the relationship of this streptococcal serotype t...

journal_title：Infection and immunity

authors： Bisno AL,Berrios X,Quesney F,Monroe DM Jr,Dale JB,Beachey EH

更新日期：1982-11-01 00:00:00

abstract：:Experiments were performed to investigate the usefulness of an enzyme-linked immunosorbent assay utilizing avidin-biotin interaction as a diagnostic tool for detection of Toxoplasma antigen in blood. The lower limit of sensitivity of the assay by this method was ca. 4 ng/ml, and standard assays provided a linear plot ...

journal_title：Infection and immunity

authors： Ise Y,Iida T,Sato K,Suzuki T,Shimada K,Nishioka K

更新日期：1985-04-01 00:00:00

abstract：:Antibodies against the Plasmodium falciparum P0 ribosomal phosphoprotein (PfP0) have been detected exclusively but extensively in malaria-immune persons. Polyclonal rabbit and mice sera were raised against two recombinant polypeptides of P. falciparum P0 protein, PfP0N and PfP0C, covering amino acids 17 to 61 and the ...

journal_title：Infection and immunity

authors： Chatterjee S,Singh S,Sohoni R,Singh NJ,Vaidya A,Long C,Sharma S

更新日期：2000-07-01 00:00:00

abstract：:Establishment and maintenance of chronic lung infections with mucoid Pseudomonas aeruginosa in patients with cystic fibrosis (CF) require that the bacteria avoid host defenses. Elaboration of the extracellular, O-acetylated mucoid exopolysaccharide, or alginate, is a major microbial factor in resistance to immune effe...

journal_title：Infection and immunity

authors： Pier GB,Coleman F,Grout M,Franklin M,Ohman DE

更新日期：2001-03-01 00:00:00