(1) In addition to oncogenes, the transferred DNA contains genes that direct the synthesis and exudation of opines, which are used as nutrients by the bacteria.
(2) The pH gradient measured with dimethyloxazolidine-2,4-dione and acetylsalicylic acid was very small in both bacteria at a high pH above 8, and was not affected significantly by the addition of CCCP.
(3) The causative organisms included viruses, fungi, and bacteria of both high and low pathogenicity.
(4) Anaerobes, in particular Bacteroides spp., are the predominant bacteria present in mixed intra-abdominal infections, yet their critical importance in the pathogenicity of these infections is not clearly defined.
(5) During the digestion of these radiolabeled bacteria, murine bone marrow macrophages produced low-molecular-weight substances that coeluted chromatographically with the radioactive cell wall marker.
(6) The authors conclude that H. pylori alone causes little or no effect on an intact gastric mucosa in the rat, that either intact organisms or bacteria-free filtrates cause similar prolongation and delayed healing of pre-existing ulcers with active chronic inflammation, and that the presence of predisposing factors leading to disruption of gastric mucosal integrity may be required for the H. pylori enhancement of inflammation and tissue damage in the stomach.
(7) Thirty-two strains of pectin-fermenting rumen bacteria were isolated from bovine rumen contents in a rumen fluid medium which contained pectin as the only added energy source.
(8) This capacity is expressed during incubation of the bacteria with the substrate and needs a source of carbon and other energy metabolites.
(9) Preincubation of the bacteria at 56 degrees C for 30 minutes and ultraviolet irradiation resulted in a noticeable decrease in adherence.
(10) An sdh-specific transcript of about 3,450 nucleotides was detected in vegetative bacteria.
(11) The authors present the first results on the utilization of fish infusion (IFP) as a basic medium for the cultivation of bacteria.
(12) Phospholipid changes occurring at later stages in the lytic cycle of infected bacteria are more prominent than those at earlier time intervals.
(13) The most commonly encountered organisms were aerobic bacteria (91%), anaerobes (74%), and fungi (48%).
(14) Resistance to antibiotics have been detected in food poisoning bacteria, namely Salmonella typhimurium, Staphylococcus aureus and Clostridium perfringens.
(15) Bacteria can stop or lessen antibodies synthesis process.
(16) Among the agents triggering such an infection Chlamydia (30.9% of the cases of non-gonorrhoic urethritis), as well as mycoplasma, ureaplasma, anaerobic bacteria and herpes simplex viruses have gained particular significance.
(17) Mu does not grow lytically in or kill him bacteria but can lysogenize such hosts.
(18) Tunnel-like formations at different depths of the oral epithelium contained higher numbers of bacteria than those seen on the adjacent oral surface.
(19) The cells were taken from cultures in low-density balanced exponential growth, and the experiments were performed quickly so that the bacteria were in a uniform physiological state at the time of measurement.
(20) Subgingival plaque was sampled and the presence or absence of the above mentioned bacteria assessed with BANA reagent cards (Perio Scan).
Typhus
Definition:
(n.) A contagious continued fever lasting from two to three weeks, attended with great prostration and cerebral disorder, and marked by a copious eruption of red spots upon the body. Also called jail fever, famine fever, putrid fever, spottled fever, etc. See Jail fever, under Jail.
Example Sentences:
(1) The results indicated a very good comparability between the dot-blot assay and IF-tests, and this dot-blot method was ascertained as a simple and useful method for the scrub typhus serodiagnosis.
(2) Commercial antigens of R. prowazekii may be used for the diagnosis of the typhus group rickettsiosis by the new solid-phase indirect enzyme immunoassay (SPI EIA).
(3) In the present work a prospective study on murine typhus was carried out in Chalkis General Hospital in 1985, is presented.
(4) None of the patients was suspected of having abdominal typhus at the time of admittance.
(5) Since human endothelial cells are known to retain their in vivo structural and functional qualities when cultured in vitro, it is likely that these effects are similar to those which occur during the infectious process in human scrub typhus.
(6) A new endemic focus of Queensland tick typhus was defined when two cases of Rickettsia australis infection were recognized in Sydney.
(7) We examined the ability of monoclonal antibodies directed against lymphocyte surface antigens to block the lysis of typhus group rickettsia-infected cells by lymphokine-activated killer effectors.
(8) Selection of mutants of a low pathogenic strain E of R. prowazekii is a trend in genetic investigation of this Rickettsia species and one of the approaches to stabilizing the strain avirulent properties with a purpose of using in vaccine prophylaxis of typhus.
(9) The monoclonal antibodies can be used to identify R. prowazekii and R. mooseri and solve the problem of differentiating Rickettsiae of typhus group.
(10) Meadow voles exposed to house dust mites from the homes of patients did not develop serologic or pathologic evidence of infection due to rickettsiae in the spotted fever and typhus groups or Coxiella burnetii.
(11) The protective activity of chemical typhus vaccine and R. prowazekii corpuscular radioantigen (CRA) was studied.
(12) Early rising IgM titers followed by rising IgG titers were demonstrated by ELISA in three patients with primary scrub typhus infections, whereas the IgG response predominated in a patient with a reinfection.
(13) It was concluded that a relatively broad antigenic relationship exists between rickettsiae of the typhus and spotted fever groups.
(14) The author presents an account of phagotypes of 70 strains of Salmonella paratyphi B isolated in 1986-1991 incl., from patients suffering from typhus B and registered carriers, isolates from river water and also from three new cases of carriers in Czechoslovakia.
(15) Formation of typhus immunity was seen when such chemoprophylaxis scheme was followed.
(16) Between 1954 and 1963, typhus, both epidemic and recrudescent, has been studied in Bosnia.
(17) Results indicated that the latex agglutination test was sensitive and specific and would serve well as a first-line screening test for murine typhus.
(18) The significance of antibody cytophilic for macrophages in typhus infections is discussed.
(19) The first group consists of pair combinations of vaccines that cannot exert any influence on immunogenicity of cause the development of frequent post-vaccination reaction or temporary disability (typhus, smallpox, tick-borne encephalitis, yellow-fever vaccines).
(20) A new assay is described for enumerating biologically active typhus rickettsiae (Madrid E strain), based on adsorption of rickettsiae to erythrocytes in the presence of NaF (which allows adsorption but not lysis) and lysis in the presence of anti-Rickettsia prowazeki immune serum (which allows only a single round of lysis).