background: neonatal septicemia is an important cause of morbidity and mortality. the most common pathogens of bacterial sepsis and antibiotic sensitivity patterns may vary in different areas of the world. understanding the etiology of bacteriological profiles is very important and helps to reduce the associated mortality. the aim of this study was to assess prevalence of bacterial and antibiot...

The chemical composition of essential oils isolated from the leaves of Cosmos bipinnatus and its antibacterial activity were analyzed by GC-MS and microbroth dilution assay respectively. The essential oil extracted from this plant was predominantly composed of monoterpenes (69.62%) and sesquiterpenes (22.73%). The antibacterial assay showed that the oil had significant inhibitory effects agains...

1. Mechanism of DNA Mutation, Transfer and Recombination in Bacteria 2. Mutation 2.1. Types of mutations 2.2 DNA damage 2.3 DNA Repair 3. Transformation 3.1. Gram -ve Bacteria 3.2. Low G+C% Gram +ve Bacteria 3.3. High G+C% Gram +ve Bacteria 3.4. Archaea 4. Transduction 4.1. Generalized Transduction 4.2. Specialized Transduction 4.3. Importance of Generalized and Specialized Transduction. 5. Con...

the antimicrobial activity of thirty six novel dihydropyrimidine derivatives was evaluated against common pathogenic bacteria. significant antimicrobial activity (mic=32, 64 µg/ml) was observed. escherichia coli and pseudomonas aeruginosa as gram-negative bacteria and staphylococcus aureus as gram-positive bacteria were determined to be the most susceptible pathogens in this study. the highest ...

Interleukin-10 (IL-10) and IL-12 are two cytokines secreted by monocytes/macrophages in response to bacterial products which have largely opposite effects on the immune system. IL-12 activates cytotoxicity and gamma interferon (IFN-gamma) secretion by T cells and NK cells, whereas IL-10 inhibits these functions. In the present study, the capacities of gram-positive and gram-negative bacteria to...

BACKGROUND Amoebae and bacteria interact within predator-prey and host-pathogen relationships, but the general response of amoeba to bacteria is not well understood. The amoeba Dictyostelium discoideum feeds on, and is colonized by, diverse bacterial species, including Gram-positive [Gram(+)] and Gram-negative [Gram(-)] bacteria, two major groups of bacteria that differ in structure and macromo...

The Gram stain classifies most bacteria into one of two groups, Gram-negative or Gram-positive, based on the composition their cell walls [...]