(n.) A microscopic vegetable organism, belonging to the class Algae, usually in the form of a jointed rodlike filament, and found in putrefying organic infusions. Bacteria are destitute of chlorophyll, and are the smallest of microscopic organisms. They are very widely diffused in nature, and multiply with marvelous rapidity, both by fission and by spores. Certain species are active agents in fermentation, while others appear to be the cause of certain infectious diseases. See Bacillus.
Example Sentences:
(1) After Listeria, a bacterium, is phagocytosed by a macrophage, it dissolves the phagosomal membrane and enters the cytoplasm.
(2) These results suggest that the bacterium may not play an important pathogenetic role in ulcer healing and relapse, when patients are managed using an H2-blocker.
(3) Three strains of fluorescent pseudomonads (IS-1, IS-2, and IS-3) isolated from potato underground stems with roots showed in vitro antibiosis against 30 strains of the ring rot bacterium Clavibacter michiganensis subsp.
(4) Microbiological analyses of sediments located near a point source for petrogenic chemicals resulted in the isolation of a pyrene-mineralizing bacterium.
(5) However, the amino acid sequence of the enzyme from the bacterium exhibited low identities (25-30%) with the same enzyme from eukaryotes.
(6) The cytoplasm and the periplasma of the gram-negative facultative photosynthetic bacterium Rhodopseudomonas sphaeroides contain phospholipid transfer proteins; these seem to be involved in the biosynthesis of prokaryotic membranes.
(7) in all of the clinical groups studied suggests that this bacterium is not a good marker of periodontal disease and that it is necessary to define the most characteristic phenotypes and genotypes.
(8) Mössbauer spectroscopy has been used to study the heme iron in various states of cytochrome P450cam from the camphor-hydroxylating system of the bacterium Pseudomonas putida.
(9) We examined the predacious gram-negative bacterium Bdellovibrio bacteriovorous 109J and free-living strains 109J-A1 and 109J-KA1 derived therefrom for penicillin-binding proteins (PBPs).
(10) The enzyme hydrogenase, from the photosynthetic bacterium Chromatium, was purified to homogeneity after solubilization of the particulate enzyme with deoxycholate.
(11) The 3-ketoglycose-synthesizing system in the bacterium does not affect the relative participation of these two pathways.
(12) We have isolated a mutant of the luminous bacterium Beneckea harveyi, which requires exogenous adenosine 3',5'-monophosphate (cyclic AMP) to synthesize luciferase and emit light.
(13) Of the major metabolic processes investigated in this bacterium, only de novo synthesis of the cell envelope was inhibited by lombazole well in advance of an effect on growth.
(14) Allo-deoxycholic acid was formed only in cell extracts prepared from bacteria induced by cholic acid, suggesting that their formation may be a branch of the cholic acid 7 alpha-dehydroxylation pathway in this bacterium.
(15) Crude extracts from aerobically grown bacterium Klebsiella pneumoniae contain three different types of catalases, designated KpT, KpCP, and KpA, whose activities in crude extracts are in the ratio 4.1:1:0.3.
(16) Nitrendipine, verapamil, LaCl3 and omega-conotoxin were tested and these blockers inhibited chemotactic behaviour in the bacterium toward L-alanine.
(17) After several rounds, the scientists had pieced together all 1m letters of the bacterium's genome.
(18) An assay for the determination of NAD(P)+ and NAD(P)H in extracts from the obligate anaerobe bacterium Thermoanaerobacter finnii is developed and the strategy for this development is described.
(19) The bacterium produces unique, branched-chain fatty acids, catalase, oxidase (weakly), and gelatinase and uses starch while ignoring other carbohydrates.
(20) Previous studies have demonstrated that human salivary alpha-amylase specifically binds to the oral bacterium Streptococcus gordonii.
Syphilis
Definition:
(n.) The pox, or venereal disease; a chronic, specific, infectious disease, usually communicated by sexual intercourse or by hereditary transmission, and occurring in three stages known as primary, secondary, and tertiary syphilis. See under Primary, Secondary, and Tertiary.
Example Sentences:
(1) Sera of 375 blood donors which were seropositive for syphilis were examined for antibodies against Entamoeba histolytica.
(2) The dramatic nationwide increase of primary and secondary syphilis in women has precipitated a dramatic rise in congenital syphilis.
(3) These structures were also found in the blood or spinal fluid (SF) of asymptomatic patients with both positive and negative serological tests for syphilis.
(4) These findings provide a framework for future investigations of our congenital syphilis model.
(5) Several months later, as the patient experienced relapses with cerebellar and spinal cord involvement, falsely positive tests for syphilis were found and an antibiotic treatment was given.
(6) The expression of such secondary and tertiary syphilis is commonly masked and distorted by the long-term effects of subcurative doses of antibiotics; in fact, late latent and tertiary syphilis produce symptoms and immunosuppression similar to the profile of AIDS.
(7) The CSF-TPHA test was positive in four out of 12 children, and the CSF-VDRL test was negative in all the children with active congenital syphilis.
(8) Binding of aCL in syphilis to solid phase CL was competitively inhibited by either addition of the cofactor or fluid phase CL.
(9) Serological tests for hepatitis A (HA) and B (HB), syphilis and HIV were performed on blood samples from 3 groups of homosexual men: 220 and 124 asymptomatic men being investigated in 1978 and 1980 respectively and another 98 men suffering from HA during the winter 1979-80.
(10) To evaluate the effect of ceftriaxone in treating latent syphilis or asymptomatic neurosyphilis in patients infected with the human immunodeficiency virus (HIV).
(11) Lyme borreliosis has in common features with another spirochetosis, syphilis, e.g.
(12) Compared to cases in the previous year, infectious syphilis cases among prostitutes and seasonal farm workers decreased 51.3 per cent and 26.8 per cent, respectively.
(13) A clinically manifest primary or secondary syphilis that develops during pregnancy has become an extremely rare occurrence.
(14) Beside being responsible for positivity of the VDRL test in the context of syphilis, APAB (false serological reactions for syphilis, LA, anticardiolipin antibodies) have also been detected in systemic lupus erythematosus (SLE) and lupus-like syndromes, after intake of certain drugs, and, more rarely, in a number of diseases (table I).
(15) A protocol outline for diagnosis and therapy of syphilis is included in the discussion.
(16) Cryptococcosis occurred in association with toxoplasmosis in one patient who developed syphilis in the follow-up; oligoclonal distribution of gamma globulins occurred in this case.
(17) However, the treatment failed to prevent infection in the infant, and the baby had developed signs of congenital syphilis at 10 weeks of age.
(18) The protocol was devised by first evaluating a range of kits in London using a battery of African and non-African sera and then field testing 1455 sera in Malaŵi, which included 184 sera from leprosy patients and 60 sera from syphilis patients to check for cross-reactivity.
(19) Individual sequelae are most significnat when congenital syphilis is allowed to develop due to delays in treating the pregnant woman or newborn child.
(20) There is a suggestion of a plateau having occurred in adult and congenital syphilis, possibly caused by saturation effect on the high-risk population.