(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.
Tetanus
Definition:
(n.) A painful and usually fatal disease, resulting generally from a wound, and having as its principal symptom persistent spasm of the voluntary muscles. When the muscles of the lower jaw are affected, it is called locked-jaw, or lickjaw, and it takes various names from the various incurvations of the body resulting from the spasm.
(n.) That condition of a muscle in which it is in a state of continued vibratory contraction, as when stimulated by a series of induction shocks.
Example Sentences:
(1) Twitch-tetanus ratios were calculated and found not to be related to unit contraction time.6.
(2) The combination vaccine consisted of 12 Lf tetanus toxoid and 10 TCID50 vaccinia virus "MVA" preserved with gelatine and glucosamine.
(3) An analysis of 249 cases of neontal tetanus admitted to Korle-Bu Teaching Hospital, Accra, between January 1971 and December 1974, has been presented.
(4) The stiffness of the fibre first rose abruptly in response to stretch and then started to decrease linearly while the stretch went on; after the completion of stretch the stiffness decreased towards a steady value which was equal to that during the isometric tetanus at the same sarcomere length, indicating that the enhancement of isometric force is associated with decreased stiffness.
(5) Between 1974 and 1984, 418 patients with tetanus, aged 10 years and older, represented 64.8% of all admissions to the intensive care unit of the Lagos University Teaching Hospital.
(6) Neither the two-chain forms of botulinum A toxin and tetanus toxin, under reducing conditions, nor the light chains of tetanus toxin, inhibited amylase release triggered by Ca2+, or combinations of Ca2+ + GTP[S] or Ca2+ + cAMP.
(7) The only significant change found was in the radioactivity of the 18,000-dalton light chain of myosin; during a single tetanus, an increase of 85 to 90% occurred as compared to the resting muscle.
(8) In this report, we describe the successful generation of triomas secreting HuMAbs to tetanus toxin (tt).
(9) In DA-depleted slices, LTD could be restored by applying exogenous DA (30 microM) before the conditioning tetanus.
(10) Different components of B. pertussis were found to have a similar inhibitory effect on thymidine-3H incorporation caused by phytohemagglutinin (PHA) in the culture of lymphocytes taken from donors immunized with tetanus toxoid.
(11) Two main polypeptides, Mr about 27,000 and 21,000, were protected against pepsin proteolysis when a mixture consisting of asolectin vesicles and 125I-labeled tetanus toxin was subjected to a pH drop from 7.2 to 3.0.
(12) Enzyme-linked immunosorbent assay (ELISA) tests were developed to detect IgG antibodies to diphtheria, tetanus, and pertussis in a healthy New Zealand population.
(13) The tetanus antitoxin titers of blood obtained by venepuncture and those of finger-blood absorbed on filter paper are compared when the titration techniques use fresh or formalinized erythrocytes sensitized by the bis-diazotized benzidine (BDB) method.
(14) Because previous studies assumed that tetanus is an acetylcholine intoxication, atropine as a potent anticholinergic agent has been employed as a continuous infusion in the treatment of 4 severe tetanus cases as a supplement to routine therapy.
(15) Secondary structure contents of tetanus neurotoxin have been estimated at neutral and acidic pH using circular dichroism (CD) and Fourier transform infrared (FT-IR) spectroscopy.
(16) In regular medicine if a patient goes to a doctor to be treated for a rat bite, the physician cleans the bite, dresses it, gives antibiotics, and gives a tetanus shot.
(17) These findings are in accordance with the immunization programme followed for prophylaxis against tetanus among pregnant women.
(18) AMP aminohydrolase activity is enhanced by 60% after 5 s tetanic stimulation of phosphorylase kinase-deficient mouse muscle and after 60 s tetanus in normal mice.
(19) Fragment C is a non-toxic 50 kDa fragment of tetanus toxin which is a candidate subunit vaccine against tetanus.
(20) Data are presented to show that the adoption of such methods would increase the information available from each animal and so reduce the number of animals required for the satisfactory standardization of diphtheria and tetanus vaccines.