نتایج جستجو برای: toxic compounds

تعداد نتایج: 294368  

ابراهیمی سیریزی, زهره , ریاحی بختیاری, علیرضا , غفاری, ساناز,

Background and purpose: Polycyclic aromatic hydrocarbons (PAHs) are one of the widespread and persistent contaminant throughout the nature. The main origin that introduced this contamination to environment is oil and oil products. The main objective of this study was determination of Environmental Protection Agency’s (EPA) PAHs list compounds in surface sediments of Hara Protected Zone and comp...

Journal: :Antimicrobial agents and chemotherapy 2005
Mhairi L Stewart Cyrille Boussard Reto Brun Ian H Gilbert Michael P Barrett

Single benzamidine group-carrying compounds were shown to interact with the Trypanosoma brucei P2 aminopurine transporter. Replacement of the amidine with a guanidine group decreased affinity. Trypanocidal activity was evident, but compounds were equally toxic against trypanosomes lacking the P2 transporter, which indicates additional uptake routes for monobenzamidine-derived compounds.

Journal: :Journal of the American Chemical Society 2010
Jermont Chen Anne H Armstrong Angela N Koehler Michael H Hecht

The amyloid-β (Aβ) aggregation pathway is a key target in efforts to discover therapeutics that prevent or delay the onset of Alzheimer's disease. Efforts at rational drug design, however, are hampered by uncertainties about the precise nature of the toxic aggregate. In contrast, high-throughput screening of compound libraries does not require a detailed understanding of the structure of the to...

Journal: :Clinical microbiology reviews 2002
Roland Nau Helmut Eiffert

Several bacterial components (endotoxin, teichoic and lipoteichoic acids, peptidoglycan, DNA, and others) can induce or enhance inflammation and may be directly toxic for eukaryotic cells. Bactericidal antibiotics which inhibit bacterial protein synthesis release smaller quantities of proinflammatory/toxic bacterial compounds than B-lactams and other cell wall-active drugs. Among the B-lactams,...

Journal: :Molecules 2017
Rosana B Feitosa-Alcantara Leandro Bacci Arie F Blank Péricles B Alves Indira Morgana de A Silva Caroline A Soares Taís S Sampaio Paulo Cesar de L Nogueira Maria de Fátima Arrigoni-Blank

Leaf-cutting ants are pests of great economic importance due to the damage they cause to agricultural and forest crops. The use of organosynthetic insecticides is the main form of control of these insects. In order to develop safer technology, the objective of this work was to evaluate the formicidal activity of the essential oils of two Hyptis pectinata genotypes (chemotypes) and their major c...

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