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Journal: Microbiology Insights
Trend in Antibiotic Resistance of Streptococcus Pneumoniae and Haemophilus Influenzae Strains Isolated from Community Acquired Respiratory Tract Infections in Dakar, Senegal Between 2005 and 2008 (24/May/2010)
Development of antibiotic resistance among common respiratory pathogens is a major cause of concern worldwide. Streptococcus pneumoniae and Haemophilus influenzae are among the most common respiratory pathogens. In this study, representative samples obtained from 3 different medical centers in Dakar, Senegal were subjected to antibiotic susceptibility testing. The samples...
Viability of Bifidobacterium Pseudocatenulatum G4 after Spray-Drying and Freeze-Drying (23/Apr/2010)
Viability of Bifidobacterium pseudocatenulatum G4 following spray-drying and freeze-drying in skim milk was evaluated. After spray-drying, the strain experienced over 99% loss in viability regardless of the air outlet temperature (75 and 85 °C) and the heat-adaptation temperature (45 and 65 °C, 30 min). The use of heat-adaptation treatment to...
Detection of RNA in the Plasma of Patients with Sporadic Creutzfeldt–Jakob Disease, Gerstmann–Straüssler Syndrome and Other Non-Transmissible Spongiform Encephalopathy Brain Disorders (14/Apr/2010)
The infectious agent of transmissible spongiform encephalopathy (TSE) was assumed to be the aggregate of abnormal prion protein isoform (PrPsc). We observed that lowering the pH of 3% SDS-inoculated plasma or brain homogenate after PK digestion to 4.5 (acidic SDS condition) enabled to precipitate proteinase K-resistant prion protein (PrPres) in...
Amino Acids Enhance Adaptive Behaviour of Pseudomonas Aeruginosa in the Cystic Fibrosis Lung Environment (09/Apr/2010)
Sputum of cystic fibrosis (CF) patients is a nutrient-rich environment. Higher amino acid content of CF sputum compared to normal sputum plays a major role in the CF-specific phenotype of P. aeruginosa. Presence of amino acids in the sputum-like environment influenced P. aeruginosa quorum-sensing activity and the formation of an...
Microbiological Control of Flour-Manufacture: Dissemination of Mycotoxins Producing Fungi in Cereal Products (16/Mar/2010)
Wheat grain and its products are widely consumed as fodder and basic daily food stuffs in Kyrgyzstan. Mycobiota is known to produce hazardous effects to a consumer since it produces mycotoxins. Henceforth, mycobiota starting from the field stage to flour, grain and flour samples were selected for mycological analysis from eight sites of flour manufacture: grain stored in storehouses before milling, mechanically cleaned grain, washed grain, grain dried and prepared for mill, roughly-milled flour, first...
Doxycycline in Clinical Medicine (12/Mar/2010)
Doxycycline is one of the most commonly used antibiotics in clinical medicine. Its broad spectrum of activity along with tolerable adverse effects makes it more palatable and compliant to patients. Improved understanding of mechanisms of actions of doxycycline has provided additional potential novel uses in clinical medicine apart from just...
Taxonomy of Bacteria Nodulating Legumes (18/Sep/2009)
Over the years, the term “rhizobia” has come to be used for all the bacteria that are capable of nodulation and nitrogen fixation in association with legumes but the taxonomy of rhizobia has changed considerably over the last 30 year. Recently, several non- rhizobial species belonging to alpha and beta subgroup of Proteobacteria have been identified as nitrogen-fixing legume symbionts. Here we provide an overview of the history of the rhizobia and the widespread phylogenetic...
Affinity Association Between Polynucleotide, Glycoprotein, or Sulfated Polysaccharides and Disease-Associated Prion Protein (17/Aug/2009)
Proteinase-K resistant prion protein (PrPres) has the property to aggregate in TSE-injured animal tissues. We have developed a test method to discriminate scrapie-infected and mock-infected hamsters by detecting the PrPres in plasma. It seemed that aggregation of the PrPres with some heterogeneous molecule(s) enabled successful detection by this method. In...
Evaluation of the Hydrophobic Grid Membrane Filter for the Enumeration of Moulds and Yeasts in Naturally-Contaminated Foods (22/Jul/2009)
Over 240 food samples from six food groups (tree nuts, grains and grain products, dried fruits, fresh produce, fruit juice, and dairy products) were tested for levels of fungal contamination using the NEO-GRID hydrophobic grid membrane filter (HGMF) and the FDA official (BAM) method. Results showed that HGMF performed very...
Streptococcus pyogenes (S. pyogenes) is the most important causative agent of tonsillopharyngitis. Beta-lactam antibiotics, particularly penicillin, are the drug of first choice and macrolides are recommended for patients who are allergic to penicillin. However, other antibiotics are also used for the treatment of streptococcal tonsillopharyngitis. In recent years, the increase...
Preliminary Study and Improve the Production of Metabolites with Antifungal Activity by A Bacillus Sp Strain IBA 33 (08/Apr/2009)
Bacillus sp strain IBA 33 metabolites, isolated from decaying lemon fruits, were evaluated for the control of pathogenic and non-pathogenic fungi (Penicillium digitatum, Geotrichum candidum, Penicillium expansum, Aspergillus clavatus, Aspergillus flavus, Aspergillus niger, and Fusarium moniliforme). These metabolites were recovered from Landy medium (LM) without aminoacids. In order to optimize...
During this work we detected 5 species of pathogenic fungi that damage seedlings and saplings of the Tiang-Shang spruce fir, which cause a perceptible damage to the coniferous nurseries of Northern Kyrgyzstan and require activities to protect the woods. The biological activity of Streptomyces metabolites for raising the resistance of...
V.H. Tournas1 and E.J. Katsoudas2 1Division of Microbiology, Center for Food Safety and Applied Nutrition, Food and Drug Administration, 5100 Paint Branch Parkway, College Park, MD 20740, U.S.A. 2Northeast Regional Laboratory, Food and Drug Administration, 158-15 Liberty Ave., Jamaica, NY 11433, U.S.A. AbstractVarious herbal teas including German chamomile,...
Sophisticated Functions for a Simple Molecule: The Role of Glucosylceramides in Fungal Cells (10/Sep/2008)
Leonardo Nimrichter1, Marcio L. Rodrigues1, Eliana Barreto-Bergter1 and Luiz R. Travassos2 1Instituto de Microbiologia Professor Paulo de Góes, Universidade Federal do Rio de Janeiro, 21941-590, Brazil. 2Unidade de Oncologia Experimental and Disciplina de Biologia Celular, Universidade Federal de São Paulo; São Paulo, SP 04023-062, Brazil. Abstract It...
Vesicular Trans-Cell Wall Transport in Fungi: A Mechanism for the Delivery of Virulence-Associated Macromolecules? (25/Aug/2008)
Marcio L. Rodrigues1, Leonardo Nimrichter1, Debora L. Oliveira1, Joshua D. Nosanchuk2,3 and Arturo Casadevall2,3 1Laboratório de Estudos Integrados em Bioquímica Microbiana, Instituto de Microbiologia Professor Paulo de Góes, Universidade Federal do Rio de Janeiro, 21941590, Brazil. 2Department of Microbiology and Immunology and the 3Division of Infectious Diseases of the...
Distribution and Resistance Trends of Community Associated Urinary Tract Pathogens in Sharjah, UAE (30/Jul/2008)
Nihar Dash1, Mansour AL-Zarouni2, Nora Al-Kous2, Fatma Al- Shehhi2, Jalila Al-Najjar2, Abiola Senok1 and Debadatta Panigrahi1 1Department of Clinical Sciences, College of Medicine, University of Sharjah, United Arab Emirates. 2Department of Laboratory Sciences, Al-Qassimi Hospital, Sharjah, Ministry of Health, United Arab Emirates. Abstract Objective: To describe the...
Successful Management of Multifactorial Colitis in a Recipient of Hematopoietic Stem Cell Transplant: A Case Report (29/Jul/2008)
Khalid A. Al-Anazi1, Asma M. Al-Jasser3, Amal Abdulwahab1, Entezam Sahovic1, Hadeel Almana2 and Mohammed A. Al Fadda2 1Section of Adult Hematology and Hematopoietic Stem Cell Transplant, King Faisal Cancer Centre, King Faisal Specialist Hospital and Research Centre, P.O. Box: 3354, Riyadh 11211, Saudi Arabia. 2Departments of Medicine and Pathology,...
Sanitation and Microbiological Quality in Production Field and Fruit-Packing Shed of Persimmon and Satsuma Mandarin in Japan (14/Jul/2008)
Hidemi Izumi1, Kazuo Hisa2, 3 and Yukari Murakami1 1School of Biology-Oriented Science and Technology, Kinki University, 930 Nishimitani, Kinokawa, Wakayama 649-6493, Japan. 2BML Food Science Solutions, Inc., 2-51-13 Ikebukuro, Toshima-ku, Tokyo 171-0014, Japan. Present address. 3Graduate School of Marine Science and Technology, Tokyo University of...
Toxigenicity in Staphylococcus aureus and Coagulase-Negative Staphylococci: Epidemiological and Molecular Aspects (28/Jun/2008)
M.L.R.S. Cunha1 and R.A.O. Calsolari2 1Department of Microbiology and Immunology, Biosciences Institute, São Paulo State University, Rubião Júnior, Botucatu, SP, 18.618-000, Brazil. 2Department of Tropical Diseases and Imaging Diagnosis, School of Medicine, São Paulo State University, Rubião Júnior, Botucatu, SP, 18.618–000, Brazil. Abstract Representatives of the Staphylococcus...
Yair Motro1, David S. Dunn1, Tom La2, Nyree D. Phillips2, David J. Hampson2 and Matthew I. Bellgard1 1Centre for Comparative Genomics, Murdoch University, Murdoch, Western Australia, Australia. 2School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, Western Australia 6150, Australia. Abstract Anaerobic intestinal spirochaetes of the...
Microbiology Insights: A New Journal is Born (17/Mar/2008)
Raúl Rivas-GonzálezDepartment of Microbiology and Genetics, University of Salamanca, Salamanca, Spain.