نتایج جستجو برای: brine shrimp bioassay
تعداد نتایج: 22303 فیلتر نتایج به سال:
In the present study some substituted benzimidazole derivatives were screened for several biological activities. The synthesized compounds subjected to evaluation of central analgesic, anti-inflammatory, cytotoxicity, antimicrobial and antioxidant activities by radiant heat induced tail flicking, carrageenan rat paw edema inhibition, brine shrimp lethality bioassay, disc diffusion DPPH free rad...
Introduction: In this study, two constituents of saffron stigma (crocin and safranal) were tested for possible cytotoxic and antitumoral activity using brine shrimp and potato disc assays. Methods: In the brine shrimp assay, three wells containing 10 nauplii were tested for each concentration. After 24h, the number of the nauplii was counted. To investigate the antimicrobial activity of safr...
Background: The Pharmaceutical companies are very interested in the discovery of new natural bioactive molecules with an impoortant effect and less toxicity, order to replace old drugs, especially antibiotics which had lost their effectiveness following spread multi-resistant bacteria. This study was aimed investigate, vitro, some extracts (aqueous extracts, oily essential oils) arabic myrrh gu...
The extracellular haemoglobins (Mr 260 000) of the brine shrimp Artemia sp. were cleaved by limited digestion with subtilisin. Structural units of Mr 16 000, which can bind dioxygen reversibly, were isolated. Analysis of the 16 000-Mr fraction (E) reveals the presence of a limited number of structural units. A single type of structural unit, E1 (Mr 15 800; pI4.8), was purified to homogeneity an...
This study reports the synthesis and antioxidant activity of some new acetamide derivatives. The compounds' structures were elucidated by NMR analysis and their melting points were measured. The in vitro antioxidant activity of these compounds was tested by evaluating the amount of scavenged ABTS radical and estimating ROS and NO production in tBOH- or LPS-stimulated J774.A1 macrophages. All co...
Background & Objectives: Dental caries is the most important disease caused by some bacteria specially Streptococcus Mutans from Viridans family. The aim of this study is to evaluate the inhibitory effect of Chlorella vulgaris extract on growth, proliferation, and biofilm formation of Streptococcus mutans. Materials & Methods: Microalgae Chlorella vulgaris was extracted via maceration using ch...
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