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7 results for “lethality”
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Research ArticleOpen accessIn the keywordsEffect of pH on the Conformation and Biological Activity of Clostridium septicum Alpha-toxin, a Pore-forming HemolysinB.M. Hang'ombe, T. Kohda, M. Mukamoto, S. KozakiThe effects of pH on the pore-forming Clostridium septicum alpha-toxin that causes myonecrosis was assessed at pH 5.0, 7.0 and 9.0 by measuring circular dichroism and its biological activity. Incubation of the toxin at pH 5.0 increased the hemolytic activity measured in murine red blood cells. On the other hand, incubation of the toxin at pH 9.0 drastically reduces the … …American Journal of Animal and Veterinary Sciences, Vol. 2, Issue 2 · 30 Jun 2007 · 6,902 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of a Cyclachaena Xanthiifolia Extract on Trematodes Opisthorchis Felineus: An in Vitro StudyDenis Ponomarev, Elena Khramova, Natalia Gubanova et al.Cyclachaena xanthiifolia is a phytochemically rich invasive weed with documented allelopathic properties, making it a candidate source of bioactive compounds with potential medicinal applications. This study investigated the anthelmintic activity of a crude aqueous-ethanolic extract of C. xanthiifolia (CxEt), prepared from equal proportions of leaves and seeds, against the trematode Opisthorchis felineus in vitro. The effects of CxEt on the … …OnLine Journal of Biological Sciences, Vol. 26, Issue 2 · 1 Jun 2026 · 1,251 accessesView PDFCite
Research ArticleOpen accessIn the abstractCrude Extract of Blue-Green Pigment Derived from the Marine Bacterium Pseudomonas aeruginosa P1.S9 has Antibacterial, Antioxidant, and Cytotoxic ActivitiesAris Tri Wahyudi, Rahmah Nursari, Widya Esti Purwaningtyas et al.Pigment derived from marine bacteria is one of the alternative sources of natural products characterized by beneficial functions for pharmaceutical purposes. This study aimed to evaluate the antimicrobial, antioxidant and cytotoxic activities of the marine bacterium Pseudomonas aeruginosa P1. S9 crude pigment extract and identify its chemical content. Crude pigment extract of this bacterium showed promising antibacterial activities against Pseudomonas … …OnLine Journal of Biological Sciences, Vol. 22, Issue 1 · 4 Mar 2022 · 6,994 accessesView PDFCite
Research ArticleOpen accessIn the abstractCryptococcosis Neuro-Brain in 42 Patients at the University Hospital of BrazzavilleOssibi Ibara Bienvenu Rolland, Mabiala Babela Jean Robert, Attinsounon Cossi Angelo et al.To describe epidemiological, clinical, therapeutic; and evolutionary aspects of Neuromeningeal Cryptococcus (NMC) at Brazzaville University Hospital and to find out factors associated to death. A descriptive and analytical retrospective study of NMC files in the infectious diseases department between January 1 and December 31, 2013. 973 patients were hospitalized, 42 NMC cases (4.3%) were compiled. The mean age was 40.2±10.4 … …American Journal of Infectious Diseases, Vol. 13, Issue 4 · 2 Mar 2018 · 7,406 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntimicrobial and Antioxidant Activities of Bacterial Extracts from Marine Bacteria Associated with Sponge Stylotella sp.Daning Yoghiapiscessa, Irmanida Batubara, Aris Tri WahyudiSponge-associated bacteria have great potential in developing marine pharmaceutical industry since they are capable of synthesizing numerous bioactive metabolite compounds. This study aimed to isolate, characterize and investigate potential antimicrobial, toxicity and antioxidant of bioactive compounds of bacteria associated with sponge Stylotella sp. A total of 138 bacteria were selected. During screening stage, 45 isolates (32%) produced a wide spectrum … …American Journal of Biochemistry and Biotechnology, Vol. 12, Issue 1 · 22 Feb 2016 · 9,154 accessesView PDFCite
Research ArticleOpen accessIn the abstractFactors Associated with Mortality Among Patients with Central Venous Catheter-Related Bloodstream Infection in an Intensive Care UnitPriscilla Roberta Silva Rocha, Marcelo de Oliveira Maia, Gisele Brocco Magnan et al.Central venous catheterization is a common practice in the management of critically ill patients and is associated with various complications, such as Bloodstream Infections (BSI), which are major determinants of increased morbidity, mortality and healthcare expenses. Few studies have addressed factors that predict mortality in patients with this complication. The aim of this study was to investigate factors associated with … …American Journal of Infectious Diseases, Vol. 8, Issue 4 · 13 Feb 2013 · 7,618 accessesView PDFCite
Research ArticleOpen accessIn the abstractPractical and Novel Sterilization Approach for the Pathogenic Staphylococcus aureus BacteriaRaftari Mohammad, Azizi Jalilian Farid, A.S. Abdulamir et al.Problem statement: Decontaminating meat surfaces has been the big concern of meat industry. Thus, various intervention strategies have been studied to reduce the level of bacteria on animals’ carcass surfaces. Approach: Mixture of different concentrations 1, 1.5 and 2% of acetic, lactic, propionic and formic acids at 1:1 ratio were spray washed on inoculated meat to evaluate their efficacy in … …American Journal of Infectious Diseases, Vol. 5, Issue 4 · 31 Dec 2009 · 6,803 accessesView PDFCite