March 2016

Antimicrobial activity of seaweeds of Pernambuco, northeastern coast of Brazil

The antibacterial efficacy of various solvent extracts of marine algae Caulerpa racemosa, Ulva lactuca (Chlorophyta), Jania adhaerens (Rhodophyta), Padina gymnospora and Sargassum polyceratium (Phaeophyta) against some selected gram-positive and gram-negative human pathogenic bacteria was screened. Crude extracts were prepared from the selected marine algae using different solvents namely, hexane, chloroform, ethyl...

Author(s): Renata Carla Corrêa Alves, Paula Fernanda Figueiredo das Mercês, Isabel Renata Arruda de Souza, Clébia Maria Alves de Almeida, Ana Paula Sant’Anna da Silva, Vera Lúcia de Menezes Lima, Maria Tereza dos Santos Correia, Márcia Vanusa da Silva and Alexandre Gomes da Silva

March 2016

Comparative evaluation of antibacterial activity of induced and non-induced Cajanus cajan seed extract against selected gastrointestinal tract bacteria

Gastrointestinal tract (GIT) infections are major causes of mortality and morbidity world-wide, especially in developing countries. Cajanus cajan extracts possess therapeutic properties. In this study, the induced and non-induced antibacterial properties of C. cajan seeds were evaluated against bacterial strains implicated in GIT infections by Disc diffusion method and Micro-well dilution assay. C. cajan produced...

Author(s): Shandu Jabulani Siyabonga, Manqele Ayanda, Maliehe Tsolanku Sydney and Shode Francis Oluwole

March 2016

In vitro antitumoral activity of soluble protein extracts of Bacillus thuringiensis

There are many studies about the antitumour effects of Bacillus toxins from different strains or subspecies in different parts of the world. Proteins that selectively kill tumor cells in vitro have potential as anticancer agents. The aim of this study was to evaluate the cytotoxic activity of soluble proteins extracts (SPE) from Mexican strains of B. thuringiensis on murine lymphoma L5178YR cell line. In vitro, L5178YR...

Author(s): Franco-Molina M. A., Mendoza-Gamboa E., Roman-Calderon M. E., Zapata-Benavides P., Rivera-Morales L. G., Zapata-Monsivais L., Coronado–Cerda E. E., Sierra-Rivera C. A., Tamez-Guerra R. and Rodríguez-Padilla C.

March 2016

Diversity of fungi in sediments and water sampled from the hot springs of Lake Magadi and Little Magadi in Kenya

Lake Magadi and Little Magadi are saline, alkaline lakes lying in the southern part of Kenyan Rift Valley. Their solutes are supplied by a series of alkaline hot springs with temperatures as high as 86°C. Previous culture-dependent and independent studies have revealed diverse prokaryotic groups adapted to these conditions. However, very few studies have examined the diversity of fungi in these soda lakes. In this...

Author(s): Anne Kelly Kambura, Romano Kachiuru Mwirichia, Remmy Wekesa Kasili, Edward Nderitu Karanja, Huxley Mae Makonde and Hamadi Iddi Boga

March 2016

Phenotypic and genotypic detection of β-lactams resistance in Klebsiella species from Egyptian hospitals revealed carbapenem resistance by OXA and NDM genes

The β-lactams are frequently used antibiotics and are essential in treatment of serious bacterial infections. The emergence of β-lactamases has been an ongoing serious therapeutic problem. To overcome this problem, scientists utilized several β-lactamases inhibitors such as clavulanic acid and tazobactam that are used in combination with antibiotics. However, pathogenic bacteria have acquired additional...

Author(s): Amira Mohamed EL-Ganiny, Areej Mostafa EL-Mahdy, Hemat Kamal Abd EL-Latif, Ramadan Hassan Ibrahem and Heba Ibrahem Abdelsabour