An endo-N-acetyl-glucosaminidase which degrades the murein (peptidoglycan) sacculi of the cell walls of Escherichia coli and Spirillum serpens, but not those of Micrococcus lysodeikticus and Sarcina lutea, is present as a contaminant in a "phospholipase C" from Clostridium perfringens. The specificity of enzyme action was elucidated by reduction of liberated glycosidic groups with NaBH4 and ide...

Backgrounds: Neutropenia can be associated with life-threatening infections. Gram negative and staphylococcal infections are the most common pathogens. The spectrum of bacterial isolates has changed considerably over the past four decades. The objective of the present study was to evaluate the pattern of bacterial and fungal infections in neutropenic pediatric patients. Methods: A non-randomize...

in many parts of the world there is a rich tradition in the use of herbal medicine for the treatment of many infectious diseases. because of the side effects and the resistance that pathogenic microorganisms build against the antibiotics, much recent attention has been paid to extract the biologically active compounds from plant species used in herbal medicine. in this study different parts of ...

b a ckground: cockroaches are among the medically important pests found within the human habitations that cause serious public health problems. they may harbor a number of pathogenic bacteria on the external surface with anti- biotic resistance. hence, they are regarded as major microbial vectors. this study investigates the prevalence and antibiotic resistance of gram-negative pathogenic bacte...

Introduction In the recent years, primarily due to the advances in genome sequencing of bacteria, an increased number of lipoproteins have been predicted in the various strains of bacteria. Bacterial lipoproteins are critical for the survival of both the Grampositive and Gram-negative bacteria. Bacteria are found on the surface of host or within the body as commensals or as pathogenic organisms...