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56 results for “Gram-negative bacteria”
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Research ArticleOpen accessIn the abstractStrains of Klebsiella Pneumoniae from Intensive Care Unit Producing CTX-M-15 Extended Spectrum Beta LactamasesI.R. Iroha, A.E. Oji, A.E. Nwakaeze et al.Problem statement: Resistance to third generation cephalosporins due to acquisition and expression of Extended Spectrum β-Lactamase (ESBL) among Gram-negative bacteria is on the increase. Infections involving extended spectrum beta lactamase bacteria are associated with significant morbidity and mortality. Therefore, infections due to ESBL isolates continue to pose a serious challenge to infection management worldwide. Since screening for ESBL is not … …Current Research in Microbiology, Vol. 2, Issue 2 · 6 Mar 2012 · 7,826 accessesView PDFCite
Research ArticleOpen accessIn the abstractMonoclonal Antibody-Based Therapeutics for Melioidosis and GlandersHyung-Yong Kim, Alexander Stojadinovic, Peter J. Weina et al.Problem statement: Burkholderia Pseudomallei (BP) and B. Mallei (BM) were two closely related pathogenic gram-negative bacteria. They were the causative agents of melioidosis and glanders, respectively and are recognized by CDC as category B select agents. Significant efforts had been devoted to developing the diagnostic and therapeutic measures against these two pathogens. Monoclonal antibody-based therapeutic was a promising targeted therapy … …American Journal of Immunology, Vol. 7, Issue 3 · 23 Dec 2011 · 8,975 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntibacterial Activity of β-Cyclodextrin and 2-Hydroxypropyl-β-Cyclodextrin Trimethoprim ComplexesHsien-Kuo Sun, Madhumathi Seshadri, Scott Lingard et al.Problem statement: Cyclodextrin complexation has previously been shown to improve the solubility and dissolution properties of trimethoprim; however, no report provides an account of the effect cyclodextrin complexation has on the antibacterial activity of this agent. Approach: β-cyclodextrin and 2-hydroxypropyl β-cyclodextrin inclusion complexes of trimethoprim were prepared and confirmed by differential scanning calorimetry and proton nuclear magnetic resonance. The in-vitro … …Current Research in Microbiology, Vol. 2, Issue 1 · 26 Oct 2011 · 14,801 accessesView PDFCite
Research ArticleOpen accessIn the abstractLeaf Surface Bacterial Colonization in Response to Brevicoryne brassicae (L.) Infestation of Brassica chinensis L.Shaon Raychaudhuri, Inga Mewis, Christian UlrichsProblem statement: Epiphytic population is an intrinsic part of the leaf surface. The effect of stress like insect infestation is not well understood. The aim of the study was to determine possible effects of insect infestation on bacteria community. Approach: The leaf surface microbial profile of Brassica rapa ssp. chinensis (L.) was investigated using a culture-dependent approach under normal and … …Current Research in Microbiology, Vol. 1, Issue 2 · 31 May 2011 · 7,859 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Study of Antibacterial Susceptibility Patterns of the Bacteria Isolated from Patients' Blood Samples over Two PeriodsAziz Japoni, Mehdi Kalani, Abdolvahab Alborzi et al.Problem statement: Due to continuous changes in the frequencies and antibacterial susceptibility patterns of nosocomial pathogens, periodical surveillance of these fluctuations could help the clinicians to treat hospitalized patients more efficiently whenever empirical therapies need to be considered. This study was conducted to compare the prevalence of the bacteria recovered from bloodstream samples by Bactec 9240, over the two periods … …American Journal of Infectious Diseases, Vol. 7, Issue 1 · 27 Apr 2011 · 8,158 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Phytochemical Contents and Antimicrobial Activities of Malaysian Calophyllum RubiginosumSuhaib Ibrahim ALkhamaiseh, Muhammad Taher, Farediah AhmadProblem statement: Many species of plants in Malaysia are widely used in folk medicine. However, Calophyllum species have been used in traditional medicine for their therapeutic values for many years. Several studies reported that antimicrobial, antifungal, anti-HIV and anti-cancer compounds were isolated from numerous Calophyllum species. Approach: The stem bark was extracted by EtOH, after with it was fractionated with … …American Journal of Applied Sciences, Vol. 8, Issue 3 · 25 Mar 2011 · 7,573 accessesView PDFCite
Research ArticleOpen accessIn the abstractPesticide-Tolerant Bacteria Isolated from Agricultural Canals in the Lower Rio Grande Valley of South TexasSandra Puente Aguirre, Kristine L. LoweAtrazine and oxamyl are commonly-used pesticides in the Lower Rio Grande Valley of South Texas. Problem statement: Pesticides may become environmental contaminants due to overuse, runoff and other mechanisms and may impact non-target organisms and ecosystems. Pesticides may be degraded by indigenous microorganisms or by abiotic means. In this study, waterborne bacteria from agricultural canals were examined to assess potential … …OnLine Journal of Biological Sciences, Vol. 10, Issue 3 · 30 Sep 2010 · 7,610 accessesView PDFCite
Research ArticleOpen accessIn the abstractFormulation and Evaluation of a Selective Medium for Lactic Acid Bacteria-Validation on Some Dairy ProductsBaida Djeghri-Hocine, Messaouda Boukhemis, Abdeltif AmraneProblem statement: Lactic Acid Bacteria (LAB) is characterized by fastidious nutritional requirements leading to the need for complex and rich media to allow growth. Owing to their complex requirements which also varied significantly with species, the formulation of selective media for LAB is difficult. Approach: A culture medium for LAB was previously developed based on deproteinated whey supplemented with yeast … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 9,410 accessesView PDFCite
Research ArticleOpen accessIn the abstractScreening of Actinomycete Isolates from Niche Habitats in Manipur for Antibiotic ActivityDebananda S. Ningthoujam, Suchitra Sanasam, Salam NimaichandProblem statement: The exhaustion of the usual terrestrial sources and the rise of resistant pathogens dictate the search for novel actinomycetes and new antibiotics. In this context, niche habitats such as caves, pristine forests, lakes, rivers, and other wetlands, high salt environments, marine ecosystems and endophytic niches are promising targets for survey of bioactive actinomycetes. Approach: Actinomycetes were isolated from … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 4 · 31 Dec 2009 · 7,765 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntimicrobial Activity of Some Medicinal Plants from MalaysiaKoshy Philip, Sri Nurestri Abd Malek, Wirakarnain Sani et al.Problem statement: About 32 extracts from eight selected medicinal plants, namely Pereskia bleo, Pereskia grandifolia, Curcuma aeruginosa Roxb., Curcuma zedoria, Curcuma mangga, Curcuma inodora aff. Blatter, Zingiber officinale var. officinale (jahe gajah) and Zingiber officinale var. rubrum (jahe emprit) used by Malaysia traditional health care systems were screened for their antimicrobial activity against both Gram-positive bacteria and Gram-negative bacteria using … …American Journal of Applied Sciences, Vol. 6, Issue 8 · 31 Aug 2009 · 9,728 accessesView PDFCite