نتایج جستجو برای: antibiotic properties
تعداد نتایج: 947760 فیلتر نتایج به سال:
BO-2727 is a new injectable carbapenem antibiotic with broad-spectrum, potent antibacterial activity. The in-vitro and in-vivo antibacterial activities of BO-2727 were compared with those of meropenem, imipenem and biapenem. BO-2727 was four- to eight-fold more active in vitro than meropenem, imipenem and biapenem against methicillin-resistant Staphylococcus aureus, inhibiting more than 90% of ...
By a combination of chemical and spectroscopic (1H and 13C NMR) studies the structure of a glycopeptide antibiotic eremomycin has been elucidated. It is closely related to vancomycin, but differs in sugar and chlorine content. The eremomycin aglycone contains monodechlorovancomycinic acid; the only chlorine atom is situated in the second amino acid after the N-terminal amino acid residue of the...
The effect of FL 1060, a newly described beta-lactam antibiotic, on three strains of Escherichia coli was studied. The agent showed extraordinarily high activity as judged by conventional titrations, but inoculum size, osmolality of the medium, and length of the incubation period were all found to have a marked effect on the result. Continuous turbidimetric monitoring and microscopical observat...
the history of plant’s used for mankind is as old as the start of humankind. initially, people used plants for their nutritional proposes but after the discovery of medicinal properties, this natural ?ora became a useful source of disease cure and health improvement across various human communities. berberis vulgaris is one of the medicinal plants used in iranian traditional medicine. berberis ...
asymmetric membranes are widely used in many industrial membrane separation processes. the major advantage of membrane filtration over the conventional process is its ability to remove a wider spectrum of particles without using any chemicals. hollow fiber configuration offer many advantages over flat-sheet or tubular membranes. the spinning process of hollow fiber may look simple, yet it is te...
Nowadays, there is an increasing interest in the production of functional foods, particularly probiotic foods. Lactic acid bacteria (LAB) particularly strains of Lactobacillus are important bacteria in food microbiology and human nutrition due to their ability to fermented food production and have received considerable attention as probiotics. The traditional fermented dairy foods as a rich sou...
Background: Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease of unknown etiology. There is evidence that bacteria may contribute to initiating the inflammatory response in HS patients. To date, data on bacteria found in HS lesions and their resistance rates are rare. Methods: The results of bacterial cultures and antibiotic susceptibility of the isolated bacteria obtained fr...
Antibiotics target ribosomes at distinct locations within functionally relevant sites. They exert their inhibitory action by diverse modes, including competing with substrate binding, interfering with ribosomal dynamics, minimizing ribosomal mobility, facilitating miscoding, hampering the progression of the mRNA chain, and blocking the nascent protein exit tunnel. Although the ribosomes are hig...
phores with ruminant growth promoting properties, we have previously reportcd the structure of antibiotic M1396032), the行rst tetronic acidcontainillg polyether. We now wish to describe antibiotic M144255, a monocarboxylic acid type ionophore from a strain of Streptomyces griseus. It has a high affinity fbr divalent cations especially zinc, for which reason it was given the trivial name, zincoph...
The elastic properties of preserved human aortic homografts after different storage times in antibiotic-nutrient medium solution have been measured. There was a definite loss of elasticity within nine months leading to a rapid decrease after a year of preservation. It is likely that satisfactory valve function depends on its elasticity, and these studies indicate that aortic valves which have b...
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