October 2012
The use of probiotics and safety concerns: A review
Probiotics are defined as “live microorganisms which when administered in adequate amounts confer a health benefit on the host’’. Most probiotics fall into the group of organisms’ known as lactic acid-producing bacteria and are normally consumed in the form of yogurt, fermented milks, cereal or other fermented foods. Many of the products currently available in the market are not clearly tied to...
October 2012
The effect of ethanolic extract of propolis and glucose oxidase on secondary infections of cutaneous leishmaniasis
Leishmaniasis is an endemic parasitosis that leads to chronic cutaneous lesions. These lesions may be infected by bacteria and lead to secondary infections. Propolis is a wax-like resin produced by honeybees from substances collected from plants, which are mixed with beeswax and other compounds of bee metabolism. Propolis is a mixture of balsams and resins, waxes, essential oils, phenólicos, pollen, and other...
October 2012
Genetic similarity and antimicrobial susceptibility of Klebsiella pneumoniae – producing carbapenemase (KPC-2) isolated in different clinical specimens received from University Hospitals in Northeastern Poland
Worldwide scientific data show that there is an increasing level of resistance to carbapenems among Enterobacteriaceae rods. We examined the genetic similarity and antimicrobial susceptibility of four KPC-2-positive Klebsiella pneumoniae (with geneblaKPC) which were isolated (for the first time) in two University Hospitals in northeastern Poland. Isolates were obtained from March 2011 to May...
October 2012
Bioactive potential of leaf extracts from Urtica dioica L. against fish and human pathogenic bacteria
The localization of bioactive phytochemical(s) may be one of the important approaches for the containment of antibiotic resistance. This study evaluated the antibacterial activity and toxicity of crude extracts and fractions from Urtica dioica L. Successive extraction of the leaves with hexane, chloroform, ethyl acetate and methanol; and their screening for antibacterial activity by disc diffusion assay...
October 2012
The use of Saccharomyces cerevisiae for removing cadmium(II) from aqueous waste solutions
The biosorption of cadmium(II) on live and dead biomass of Saccharomyces cerevisiaewas investigated with respect to the adsorption conditions. The biosorption mechanism was investigated by energy dispersive X-ray analysis (EDAX) and transmission electron microscope (TEM). The effects of the biosorbent dose, initial metal ion concentration, initial pH and contact time were studied. The optimum conditions for...
October 2012
Gene differential expression of Phytophthora sojae during sporangium formation process
The gene differential expression of Phytophthora sojae during early stage (0 to 7 h) of sporangium formation was studied by differential display reverse transcription polymerase chain reaction (DDRT-PCR) in the present study. Thirty out of 78 primer combinations were selected and 90 stable differential bands were obtained. Thirty-nine positive differential fragments were found in the experiments by using the...
October 2012
Polymorphisms of the programmed cell death 1 and ICOS genes and kidney transplant rejection in Iranian patients
Acute rejection is a common phenomenon in kidney transplantation. Inflammatory and anti inflammatory mediators affect graft microenvironment and its outcome. In this study, we evaluated the role of programmed cell death 1 (PD.1) and ICOS gene polymorphisms in the outcome of kidney transplantation. Polymerase chain reaction -Restriction fragment length polymorphism (PCR-RFLP) method using restriction enzymes was...
October 2012
Occurrence and detection of AmpC β-lactamases among some clinical isolates of Enterobacteriaceae obtained from Mansoura University Hospitals, Egypt
The increasing incidence of β-lactam resistance due to AmpC β-lactamases in Egypt necessitated this study which aimed to evaluate four different phenotypic methods for detection of AmpC β-lactamases among some clinical isolates of Enterobacteriaceae and compare these results with those obtained using polymerase chain reaction. The distribution of five AmpC β-lactamases genes...
October 2012
Prevention of aflatoxin contamination of maize by Aspergillus flavus through aqueous plant extracts in Saudi Arabia
The efficacy of four concentrations of aqueous extracts of 11 local plants in the management of Aspergillus flavus and aflatoxin contamination was investigated by measuring the dry weight of A. flavus. The extracts of Allium sativum gave the best results, decreasing the dry weight of the fungus, followed by Aloe vera, whereas 20%Coriandrum sativum extract had no significant...
October 2012
Using ectomycorrhizal inocula to increase slash pine (Pinus elliottii) growth in Southern China
Bio-fertilizers are of great importance in forestry because they can positively affect plant growth and the environment. In this study, the seedlings of slash pine (Pinus elliottii) were planted in pots. One month later they were inoculated with 7 groups of ectomycorrhizal fungi including Lactarius sp., Scleroderma...
October 2012
Antifungal and prophylactic activity of pumpkin (Cucurbita moschata) extract against Aspergillus flavus and aflatoxin B1
The antifungal effect of pumpkin (Cucurbita moschata) fruit aqueous extract againstAspergillus flavus was investigated in vitro. The result showed that incubation of different pumpkin aqueous extract (0.5 to 2%) with living mass of the fungus has suppressive effect on the fungal growth after 6 days compared with untreated control sample. However 2% of pumpkin aqueous extract was the most effective in...
October 2012
Occurrence of insect associated fungi in hot arid zone, Pakist gan
For the occurrence and diversity of insect associated fungi in agroecological habitats of Hot Arid Zone of Punjab, Pakistan soil samples were collected. Insect associated fungi were classified as entomopathogens, opportunistic pathogens and secondary colonizers isolated from the Galleria mellonella bait insect exposed to the soil samples in question. Total 20 number of soil samples collected from Muzzafargarh and...
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