In vitro antimicrobial efficacy of leaves extracts of Murraya koenigii was performed by disc diffusion method against six Gram positive bacterial (Bacillus cereus, Bacillus megaterium, Bacillus subtilis, Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus subfava), nine Gram negative bacterial (Alcaligenes fecalis, Enterobacter aerogenes, Escherichia coli, Klebsiella pneumoniae, P...

Swarming cells of Proteus mirabilis and Proteus vulgaris could be distinguished from their short-cell counterparts by virtue of their synthesis (or lack of synthesis) of certain enzymes and outer membrane proteins. Urease synthesis was constitutive in swarm cells and uninducible in short cells. In contrast, phenylalanine deaminase was inducible in both short and swarm cells, demonstrating that ...

Blood, stool and urine samples were collected from 100 patients diagnosed as having typhoid in 5 hospitals in Akwa Ibom State and analyzed for the presence of Salmonella species and other bacteria. Of the 100 blood samples screened, 55 (55%) were positive with the Widal test and 39 (39%) were positive on blood culture. Thirteen (14.1%) out of 92 urine samples were positive for bacterial growth,...

Purpose: Water is very important to the existence of humans, though could also serve as vehicle of pathogenic organisms and dangerous organic and inorganic matters. The physicochemical and microbiological analysis of seven borehole water samples used by AkungbaAkoko residents were carried out with the aim of ascertaining their suitability or otherwise for human consumption. Methods: The total h...

Essential oils extracted by hydrodistillation from the aerial parts and corollas of Origanum acutidens (Hand.-Mazz.) Ietswaart, an endemic Turkish flora species, were analyzed by GC-MS. The amounts of essential oil obtained from the aerial parts and the corollas were 0.73% and 0.93%, respectively. Twenty-five components in both the aerial parts oil and the corolla oil, representing 95.11% and 9...

In this study, we examined the microbial population in different parts, gill, muscles and intestine region of Channa punctatus from two different fish culture farm. Based on their growth characteristics on specific culture media, the following human bacterial pathogen such as Achromobacter xylosoxidans (Gram +ve), Acinetobacter anitratus (Gram -ve), Bacillus subtilis (Gram +ve), Proteus vulgari...

The carbapenem-induced endotoxin release was evaluated using experimental models of gram-negative bacterial sepsis in Wistar rats. Infections with Escherichia coli, Serratia marcescens, Klebsiella pneumoniae, Pseudomonas aeruginosa, Proteus vulgaris and Proteus mirabilis resulted in an increase of the plasma endotoxin concentration after treatment with ceftazidime and carbapenems including imip...

The selC gene from E. coli codes for a tRNA species (tRNA(UCASer] which is aminoacylated with L-serine and which cotranslationally inserts selenocysteine into selenoproteins. By means of Southern hybridization it was demonstrated that this gene occurs in all enterobacteria tested. To assess whether the unique primary and secondary structural features of the E. coli selC gene product are conserv...

Strains of bacteria resistant to beta-lactam antibiotics have been increasing in number and are becoming troublesome in clinical medicine. The in vitro antibacterial activity of amoxicillin combined with clavulanic acid was determined on selected ampicillin-resistant clinical isolates. Synergistic effects were produced by amoxicillin with clavulanic acid against ampicillin-resistant strains of ...

Ethanolic extracts of eight medicinal plants commonly used in folk medicine were tested for their antibacterial activity against four Gram positive strains (Bacillus subtilis, Staphylococcus aureus, Staphylococcus epidermidis and, Streptococcus pneumoniae) and six Gram negative strains (Escherichia coli, Proteus vulgaris, Proteus mirabilis. Salmonella typhi para A, Salmonella typhi para B and S...