Results 211 to 220 of about 109,795 (265)
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Bactericidal activity of peroxynitrite
Archives of Biochemistry and Biophysics, 1992Peroxynitrite is a strong oxidant formed by macrophages and potentially by other cells that produce nitric oxide and superoxide. Peroxynitrite was highly bactericidal, killing Escherichia coli in direct proportion to its concentration with an LD50 of 250 microM at 37 degrees C in potassium phosphate, pH 7.4.
L, Zhu, C, Gunn, J S, Beckman
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Bactericidal activity of tuftsin
Molecular and Cellular Biochemistry, 1981The biological activities of the phagocytosis stimulating tetrapeptide, Thr-Lys-Pro-Arg are discussed. A brief account on the stimulation by tuftsin of phagocytosis of various particles, including bacteria was reported. Stimulation of bactericidal activity by this tetrapeptide was investigated in vitro as well as in vivo.
J, Martinez, F, Winternitz
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Anomalous Serum Bactericidal Activity
American Journal of Clinical Pathology, 1973The in vitro assay of serum bactericidal activity in several recent patients with severe infection has shown an unexpected prozone effect. That is, the undiluted, or minimally diluted serum from a patient receiving antibiotic therapy with cephalothin showed growth of a microbial inoculum, whereas more dilute specimens inhibited growth.
D L, Palmer, B H, Bueffel
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Bactericidal activity of disinfectants on listeria
Journal of Applied Bacteriology, 1993A. VAN DE WEYER, M.‐J. DEVLEESCHOUWER AND J. DONY. 1993. The bactericidal activity on Listeria spp. of nine disinfectants used in the food industry was studied by previously published methods. The disinfectants were diluted to the test concentation in sterile standard hard water.
Van De Weyer, Anne +2 more
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A bactericidal activity of microsomal preparations
Mutation Research/Genetic Toxicology, 1980Exposure of suspension of Salmonella typhimurium tester strains TA1535, TA1537 and TA98 to mouse hepatic post-mitochondrial supernatants (S9) resulted in appreciable loss of bacterial viability. This lethal activity was destroyed by heating at 56 degrees C for 30 min. The toxic component of the S9 has not been identified.
Monika Anders +3 more
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Analysis of Neutrophil Bactericidal Activity
2014This chapter describes two methods for measuring the bactericidal activity of neutrophils. These are a new simple fluorescence-based assay, which quantifies bactericidal activity by measuring changes in bacterial fluorescence associated with a loss of membrane potential over time, and a more traditional colony counting protocol. Two variations of these
Nicholas J, Magon +4 more
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Bactericidal Activity of Amikacin and Gentamicin
Chemotherapy, 2009Using the membrane filtration method bactericidal activity of amikacin and gentamicin as a function of time and concentrations was determined. Amikacin was bactericidal against all Pseudomonas aeruginosa (n = 7) and Klebsiella pneumoniae strains (n = 8) tested. In 5 of the 7 P. aeruginosa and 3 of the 8 K. pneumoniae strains we saw a secondary regrowth
R M, Shah, G, Heetderks, W, Stille
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Bactericidal Activity of Wet Cerumen
Annals of Otology, Rhinology & Laryngology, 1984The viable populations of seven species of bacteria were reduced 17% to 99% by treatment with a 3% suspension of human cerumen of the soft or “wet” type. Species tested for susceptibility to cerumen were Staphylococcus aureus, Staphylococcus epidermidis.
M, Stone, R S, Fulghum
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Bactericidal activity of herbal extracts
International Journal of Hygiene and Environmental Health, 2003The antimicrobial activity of total herbal extracts has been investigated. The MIC of extracts of Evodia rutaecarpa and grape kernel ranged between 0.25 and 1 mg/ml against gram-positive cocci and P. aeruginosa. Cocci were killed after 30-90 min of incubation in grape kernel extract (0.5-1.5 mg/ml), and after 8 h in evodia extract (0.5-1 mg/ml ...
Nikolaus, Thuille +2 more
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Evaluation of the Bactericidal Activity of Galectins
2022Over a century ago, Karl Landsteiner discovered that blood group antigens could predict the immunological outcome of red blood cell transfusion. While the discovery of ABO(H) blood group antigens revolutionized transfusion medicine, many questions remain regarding the development and regulation of naturally occurring anti-blood group antibody formation.
Nourine A, Kamili +6 more
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