نتایج جستجو برای: hemolytic assay
تعداد نتایج: 238144 فیلتر نتایج به سال:
Metabolites from clove (Syzygium aromaticum L.) have been extensively studied for various pharmacological uses, including quercetin. Endophytic bacteria isolated plant tissues can produce similar secondary metabolites as their host plants. However, little is known about the antioxidant activity of endophytic bacterial extract leaves. Amongst potential groups, genera Bacillus widely a source ant...
objective(s): streptococcus pyogenes produces extracellular hyaluronidase enzyme. this enzyme is directly associated with the spread of the organism during infection. the objective of the present study was to clone and express the nucleotide sequence of the enzyme which is involved in hyaluronidase enzymatic activity. materials and methods: the enzymatic region of hyaluronidase gene was detecte...
Introduction: Parthenium hysterophorus is a plant used in traditional medicine to treat health issues and which could be source of phytochemicals with possible antioxidant activity without causing cytotoxic effects. Hence, this work was designed evaluate its phytochemical profile, cytotoxicity, activity. Methods: The aqueous (AE) ethanolic (EE) extracts P. flowers were obtained by decoction ult...
Background: Atypical hemolytic uremic syndrome (aHUS) is a life-threatening and scarce disorder characterized by acute renal failure and disease, non-immune microangiopathic hemolytic anemia and thrombocytopenia, leading to end-stage renal failure or death, and consequently maybe accompanying by extra renal manifestations. Case report: We reported aHUS accompanied by autoimmune hemolytic anemi...
Four linear and four cyclic analogs of gramicidin S (GS) in which D-Phe was replaced with either D-His, D-Ser, D-Tyr or D-Asn have been prepared by solid-phase peptide synthesis and characterized with respect to antibacterial, antifungal and hemolytic activity. Unlike previous reports, GS and a number of cyclic analogs were found to be active against gram-positive as well as gram-negative bacte...
V. cholerae non-O1 non-O139 serogroups isolated from clinical and environmental sources in Córdoba, Argentina, were analyzed for the presence and expression of virulence genes. Most of the strains studied contained the genes toxR and hlyA, but lacked ctxA, zot, ace, tcpA and stn. The culture supernatants were tested for hemolytic and cytotoxic activity. The enterotoxic potential of the strains ...
The synthesis of indolo[2,3-b]quinoline derivatives containing guanidine, amino acid or guanylamino acid substituents as well as their in vitro evaluation for the cytotoxic and antifungal activity are reported. The influence of the guanidine group on the selective cytotoxic and hemolytic properties of indolo[2,3-b]quinoline was investigated. Most of the compounds displayed a high cytotoxic acti...
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