patients and methods the study population consisted of all patients with type iiia gastilo open fractures of tibial shaft, with or without fibula fracture (caused by trauma). after wound irrigation, debridement, and wound swab sampling for microbial culture, all patients received prophylactic antibiotic regimens in fitting with their wound class. no topical antibiotics were used with a 6-month ...

the intestinal bacterial diversity of stichopus japonicus was investigated using 16s ribosomal rna gene (rdna) clone library and polymerase chain reaction/denaturing gradient gel electrophoresis (pcr-dgge). the clone library yielded a total of 188 clones, and these were sequenced and classified into 106 operational taxonomic units (otus) with sequence similarity ranging from 88 to 100%. the cov...

yeasts, especially saccharomyces cerevisiae, are one of the oldest organisms with broad spectrum of applications, owing to their unique genetics and physiology. yeast extract, i.e. the product of yeast cells, is extensively used as nutritional resource in bacterial culture media. the aim of this study was to develop a simple, rapid and cost benefit process to produce the yeast extract. in this ...

abstract edible white button mushroom is a secondary decomposer and the activity of other micro-organisms is necessary to decompose the raw compounds for its growth. actinomycetes bacteria due to their ability to decompose the compound molecules such as cellulose, lingo-cellulose and lignin, play an important role in the composting process for the mushroom. bacterial biomass of actinomycetes co...

introduction: shallot is a plant which belongs to alium and albale family , this is a native plant from iran which is self – grown in high zones. by regard to further use of medicine and plant’s product , use of herbal plants has on important nole in medical treatment and preventi of diseale. the purpose of this study is the photo chemistry properties and anti – bacterial effects of this plant....

introduction: the success of endodontic treatment depends on the method and quality of cleaning, disinfection and three-dimensional sealing of the root canal. the smear layer can play an important role in the success or failure of endodontic treatment. there is controversy over the presence or removal of the smear layer in relation to the success or failure of endodontic treatment. this study u...

conclusions our study showed high esbl incidence, with ctx-m genotype as the emerging strain in our hospitals. high co-resistance to other non-β-lactam antibiotics is a major challenge for the management of esbl infections. results the esbls were found in (62.89%) of e. coli and (67.5%) of k. pneumoniae isolates. the majority of the typeable isolates harbored two or more esbl genes (73%). overa...

introduction: the purpose of this study was to compare the ability of proroot mineral trioxide aggregate (pmta) and root mineral trioxide aggregate (rmta) as root-end filling materials, and portland cement (pc) to prevent bacterial leakage through filled root end cavities. materials and methods: fifty-one extracted human single rooted teeth were cleaned and shaped using a step back technique. t...

agrobacterium rhizogenes (pri), a causative agent of hairy root disease, effectively induces hairy root formation in a variety of plant species. in our study four bacterial strains ar15834, a4, 9435 and c318 and three explants types leaf, stems and roots, were examined. hairy roots were induced from roots, stems and leaf explants. the highest transformation efficiency of 77% was achieved by usi...

the aim of this study was to assess the effects of nucleotide on intestinal microbiota of striped catfish, pangasianodon hypophthalmus . different levels of the nt (0, 0.25. 0.5, 0.75 and 1 % weight per weight, ww -1 ) were added to basal diet and then randomly allocated to triplicate groups of fish with average initial weight (1.52±0.11 g) for 10 weeks. at the end of the experiment, at least 1...