A double, long polar fimbria mutant of Escherichia coli O157:H7 expresses Curli and exhibits reduced in vivo colonization.

abstract：:The dermotropism of Cryptococcus neoformans SLHA in congenitally athymic (nu/nu) and doubly immunodeficient beige-athymic (bg/bg-nu/nu) mice is described. Both bg/bg-nu/nu and nu/nu mice developed cutaneous cryptococcosis within 7 to 12 days following intravenous challenge with 10(4) encapsulated yeast cells. Macrosco...

journal_title：Infection and immunity

authors： Salkowski CA,Balish E

更新日期：1991-05-01 00:00:00

abstract：:Protein-malnourished rats had greater numbers of bacteria in their livers and spleens compared with numbers in control rats following a sublethal intraperitoneal dose of Salmonella typhimurium. However, the febrile responses of both groups of rats to infection were similar. The ability to mount a normal febrile respon...

journal_title：Infection and immunity

authors： Bradley SF,Kauffman CA

更新日期：1988-04-01 00:00:00

abstract：:BALB/c mice were vaccinated by the intramuscular (i.m.) and subcutaneous (s.c.) routes with a native preparation of the Chlamydia trachomatis mouse pneumonitis (MoPn) major outer membrane protein (MOMP), using Montanide ISA 720 and CpG-1826 as adjuvants. A negative control group was immunized with ovalbumin and the tw...

journal_title：Infection and immunity

authors： Pal S,Peterson EM,de la Maza LM

更新日期：2005-12-01 00:00:00

abstract：:H(2)O(2) levels accumulated by Mycoplasma pneumoniae can be influenced by carbon source, different horse sera, yeast extract, thallium acetate, or growth in a simplified, dialyzed medium. Thus, increased levels of H(2)O(2) were detected by growth in glycerol, by omission of thallium acetate, and by the use of dialyzed...

journal_title：Infection and immunity

authors： Low IE

更新日期：1971-01-01 00:00:00

abstract：:The immune mechanism by which hamsters acquire resistance to infection with Treponema pertenue, the causative agent of frambesia, or yaws, has not been elucidated. Serum or cells (spleen or lymph node) obtained from hamsters resistant to frambesial infection were transferred to normal syngenic recipients, who are subs...

journal_title：Infection and immunity

authors： Schell RF,Le Frock JL,Babu JP

更新日期：1978-08-01 00:00:00

abstract：:The suspected correlation between cessation of type C virus production and halt in immunoglobulin secretion by murine myeloma cells was studied. Employing two variants of the murine myeloma MOPC-315, immunoglobulin A-producing and nonproducing cells, we demonstrated that the two myelomas release similar levels of type...

journal_title：Infection and immunity

authors： Gazit A,Yaniv A,Halperin D,Ben-Efraim S

更新日期：1979-08-01 00:00:00

abstract：:To investigate the correlation between the incA I47T mutation in Chlamydia trachomatis and the nonfusogenic phenotype, the incA genes of 25 isolates were sequenced. Four major sequence types were identified. Seven isolates (28%) had the I47T mutation. Isolates representing the four sequence types expressed IncA in the...

journal_title：Infection and immunity

authors： Pannekoek Y,van der Ende A,Eijk PP,van Marle J,de Witte MA,Ossewaarde JM,van den Brule AJ,Morré SA,Dankert J

更新日期：2001-07-01 00:00:00

abstract：:Transcription of the gene encoding the antiphagocytic M protein (emm) of the group A streptococci has been shown to be regulated by CO2 (M. G. Caparon, R. T. Geist, J. Perez-Casal, and J. R. Scott, J. Bacteriol. 174:5693-5701, 1992). We tested the influence of additional environmental growth conditions on emm expressi...

journal_title：Infection and immunity

authors： McIver KS,Heath AS,Scott JR

更新日期：1995-11-01 00:00:00

abstract：:The role of CD8 T cells in controlling Mycobacterium tuberculosis infections in mice was confirmed by comparing the levels of growth of the organism in control, major histocompatibility complex class II knockout, and athymic mice and by transferring T-cell populations into athymic mice. By using donor mice which were ...

journal_title：Infection and immunity

authors： Tascon RE,Stavropoulos E,Lukacs KV,Colston MJ

更新日期：1998-02-01 00:00:00

abstract：:The purpose of our experiment was to evaluate the destructive potential of a strain of Actinomyces viscosus on the periodontium of sensitized rodents, describing the induced lesions on the basis of quantitative cytology. The experimental design comprised in principle the following procedures. Young germfree rats were ...

journal_title：Infection and immunity

authors： Guggenheim B,Schroeder HE

更新日期：1974-09-01 00:00:00

abstract：:The effects of heat and chemical inactivation on the antigenicity and immunogenicity of Vibrio cholerae 1418 in rabbits were studied. V. cholerae 1418 was inactivated with heat and chemical inactivants (phenol or Formalin) alone or in combination. Enzyme-linked immunoassay systems employing whole cells of V. cholerae ...

journal_title：Infection and immunity

authors： Cryz SJ Jr,Fürer E,Germanier R

更新日期：1982-10-01 00:00:00

abstract：:Clostridium perfringens enterotoxin (CPE), a single polypeptide of 319 amino acids, has a unique multistep mechanism of action. In the first step, CPE binds to claudin proteins and/or a 50-kDa eukaryotic membrane protein receptor, forming a small ( approximately 90-kDa) complex. This small complex apparently then asso...

journal_title：Infection and immunity

authors： Kokai-Kun JF,Benton K,Wieckowski EU,McClane BA

更新日期：1999-11-01 00:00:00

abstract：:Contributions of the alternative sigma factor sigmaB to Listeria monocytogenes infection were investigated using strains bearing null mutations in sigB, prfA, or inlA or in selected inlA or prfA promoter regions. The DeltaP4inlA strain, which has a deletion in the sigmaB-dependent P4inlA promoter, and the DeltasigB st...

journal_title：Infection and immunity

authors： Garner MR,Njaa BL,Wiedmann M,Boor KJ

更新日期：2006-02-01 00:00:00

abstract：:Murine monoclonal and rabbit, murine, and human polyclonal antibodies against chlamydial lipopolysaccharide (LPS) were characterized by the passive hemolysis and passive hemolysis inhibition assays and by absorption experiments with LPSs of Chlamydia psittaci, Chlamydia trachomatis, and a recombinant strain of Salmone...

journal_title：Infection and immunity

authors： Brade L,Holst O,Kosma P,Zhang YX,Paulsen H,Krausse R,Brade H

更新日期：1990-01-01 00:00:00

abstract：:Streptococcus suis serotype 2 is a porcine and human pathogen with adhesive and invasive properties. In other streptococci, large surface-associated proteins (>100 kDa) of the MSCRAMM family (microbial surface components recognizing adhesive matrix molecules) are key players in interactions with host tissue. In this s...

journal_title：Infection and immunity

authors： Baums CG,Kaim U,Fulde M,Ramachandran G,Goethe R,Valentin-Weigand P

更新日期：2006-11-01 00:00:00

abstract：:Shiga toxin-producing Escherichia coli (STEC) strains are responsible for causing hemolytic-uremic syndrome (HUS), and systemic administration of Shiga toxin (Stx)-specific human monoclonal antibodies (HuMAbs) is considered a promising approach for prevention or treatment of the disease in children. The goal of the pr...

journal_title：Infection and immunity

authors： Sheoran AS,Chapman S,Singh P,Donohue-Rolfe A,Tzipori S

更新日期：2003-06-01 00:00:00

abstract：:Three MudJ prototrophs demonstrated that intracellular replication is a Salmonella virulence trait (K. Y. Leung and B. B. Finlay, Proc. Natl. Acad. Sci. USA, 88:11470-11474, 1991). mutS and mutH are disrupted in mutants 3-11 and 12-23, and ssaQ is disrupted in mutant 17-21. Further analysis revealed that loss of Salmo...

journal_title：Infection and immunity

authors： Suvarnapunya AE,Zurawski DV,Guy RL,Stein MA

更新日期：2003-04-01 00:00:00

abstract：:Oral inoculation of calves and steers with 10(10) CFU of Escherichia coli O157:H7 induced prompt and sustained increases in serum antibodies to O157 lipopolysaccharide. Neutralizing antibodies to verotoxin 1 also increased rapidly in most steers but more gradually in calves. None of the animals developed neutralizing ...

journal_title：Infection and immunity

authors： Johnson RP,Cray WC Jr,Johnson ST

更新日期：1996-05-01 00:00:00

abstract：:Nineteen of 22 female mice (CF1 strain) inoculated intragastrically with Treponema hyodysenteriae developed cecal and colonic lesions consisting of catarrhal inflammation, edema, and occasional hemorrhage. ...

journal_title：Infection and immunity

authors： Joens LA,Glock RD

更新日期：1979-08-01 00:00:00

abstract：:Murine embryo fibroblasts (MEF) were found to secrete tumor necrosis factor (TNF) in response to stimulation with endotoxin. Endotoxin-induced TNF production by MEF was inhibited by cycloheximide. However, reversal of the effect of this inhibitor on protein synthesis results in TNF being secreted in amounts equivalent...

journal_title：Infection and immunity

authors： Havell EA,Rogerson BJ

更新日期：1993-05-01 00:00:00

abstract：:Expression of virulence determinants by Bordetella pertussis, the primary etiological agent of whooping cough, is regulated by the BvgAS two-component regulatory system. The role of a second two-component regulatory system, encoded by risAS, in this process is not defined. Here, we show that mutation of B. pertussis r...

journal_title：Infection and immunity

authors： Stenson TH,Allen AG,Al-Meer JA,Maskell D,Peppler MS

更新日期：2005-09-01 00:00:00

abstract：:Monoclonal antibodies to the capsular polysaccharide of Cryptococcus neoformans produce distinct capsular reactions and have biological activities that are determined by serotype specificity. In the present study, polyclonal rabbit anticapsular antibodies were cross-absorbed to produce serotype specificities similar t...

journal_title：Infection and immunity

authors： MacGill TC,MacGill RS,Kozel TR

更新日期：2001-02-01 00:00:00

abstract：:Citrobacter rodentium, a murine model pathogen for enteropathogenic Escherichia coli, colonizes the surface of intestinal epithelial cells and causes mucosal inflammation. This bacterium is an ideal model for investigating pathogen-host immune interactions in the gut. It is well known that gene transcripts for Th1 cyt...

journal_title：Infection and immunity

authors： Shiomi H,Masuda A,Nishiumi S,Nishida M,Takagawa T,Shiomi Y,Kutsumi H,Blumberg RS,Azuma T,Yoshida M

更新日期：2010-06-01 00:00:00

abstract：:Dendritic cells (DC) suffer a maturation defect following interaction with erythrocytes infected with malaria parasites and become unable to induce protective malaria liver-stage immunity. Here we show that, by contrast, maturation-arrested DC in vitro are capable of the successful induction of antigen-specific gamma ...

journal_title：Infection and immunity

authors： Pouniotis DS,Proudfoot O,Bogdanoska V,Apostolopoulos V,Fifis T,Plebanski M

更新日期：2004-09-01 00:00:00

abstract：:Oophorectomized, estrogen-treated rats were immunized by the intravaginal or intranasal route with a mannoprotein extract (MP) or secreted aspartyl proteinases (Sap) of Candida albicans, with or without cholera toxin as a mucosal adjuvant. Both routes of immunization were equally effective in (i) inducing anti-MP and ...

journal_title：Infection and immunity

authors： De Bernardis F,Boccanera M,Adriani D,Girolamo A,Cassone A

更新日期：2002-05-01 00:00:00

abstract：:Sequestration of Plasmodium falciparum-infected erythrocytes to the capillary endothelium can cause obstruction and localized tissue damage. Occlusion of vessels in falciparum malaria infection has been related to two properties of the parasite: adhesion to endothelial cells and rosette formation. Our study on P. falc...

journal_title：Infection and immunity

authors： Udomsangpetch R,Webster HK,Pattanapanyasat K,Pitchayangkul S,Thaithong S

更新日期：1992-11-01 00:00:00

abstract：:Amastigotes obtained from spleens of mice infected with different strains of Trypanosoma cruzi were examined for their ability to invade macrophages and L929 cells and to initiate infection in mice. Both types of cells were readily invaded by organisms of the strains Y, MR, and Tulahuen. Organisms of the CL strain wer...

journal_title：Infection and immunity

authors： McCabe RE,Remington JS,Araujo FG

更新日期：1984-11-01 00:00:00

abstract：:A 95-kDa protein was isolated from Staphylococcus saprophyticus 7108 grown on dialysis membranes placed on the surface of brain heart infusion agar. Strain CCM883 did not produce this protein. Ultrathin sections revealed the presence of very thin, tuftlike, 50- to 75-nm-long structures on the surface of strain 7108, w...

journal_title：Infection and immunity

authors： Gatermann S,Kreft B,Marre R,Wanner G

更新日期：1992-03-01 00:00:00

abstract：:PspC was found to bind human complement factor H (FH) by Western blot analysis of D39 (pspC(+)) and an isogenic mutant TRE108 (pspC). We confirmed that PspA does not bind FH, while purified PspC binds FH very strongly. The binding of FH to exponentially growing pneumococci varied among different isolates when analyzed...

journal_title：Infection and immunity

authors： Dave S,Brooks-Walter A,Pangburn MK,McDaniel LS

更新日期：2001-05-01 00:00:00

abstract：:Mouse fibroblasts (L cells) infected with the 6BC strain of Chlamydia psittaci released potassium ion (K(+)) into the extracellular milieu in a way that depended on size of inoculum and time after infection. When the multiplicity of infection was 500 to 1,000 50% infectious units (ID(50)) per L cell, loss of intracell...

journal_title：Infection and immunity

authors： Chang GT,Moulder JW

更新日期：1978-03-01 00:00:00