background: members of the malassezia genus are often lipophilic, observed as budding yeasts and found as commensals in the skin of humans. this genus opportunistically reside in several areas including scalp where under the influence of particular predisposing factors, their proliferation is increased (e.g., high activation of sebaceous glands), and leads to dandruff and seborrheic dermatitis,...

background and objectives: the genus malassezia contains an expanding list of lipophilic yeasts involve in the etiology of various superficial fungal infections. pityriasis versicolor (pv) is the most prevalent malassezia -related infection distributed worldwide. in the present study, clinical and epidemiological features of the genus malassezia are discussed with special focus on pv in iran. m...

In the past decade considerable advances have been achieved in the study of induced enzyme biosynthesis in microorganisms. A comparison of three of the better studied systems, P-galactosidase in Escherichia coli (l), penicillinase in Bacillus cereus (2), and oc-glucosidase in Xaccharomyces cerevisiae (3) indicates that there are a number of differences in these inductions. In order to compare f...

The development of reliable and rapid methods for the identification of patients colonized with vancomycin-resistant enterococci (VRE) is central to the containment of this agent within a hospital environment. To this end, we evaluated a prototype chromogenic agar medium (VRE-BMX; bioMérieux, Marcy l'Etoile, France) used to recover VRE from clinical specimens. This medium can also identify isol...

Therapeutic or medicinal plants are very beneficial for economic and therapeutic purposes. These plants contain active constituents which are used for the rehabilitation of many human diseases. These constituents are isolated and used against various pathogens[1,2]. Cichorium intybus (C. intybus ) seeds have been successfully used in Ayurvedic and Unani systems of medicine. It is one of the imp...

In 1936 Szent-Gybrgyi and coworkers (1) described the isolation of a material which was capable of increasing capillary resistance in man, and which they called citrin or vitamin P. Subsequent work has shown that many substances have this property, and vitamin P activity has been attributed variously to flavones, flavanones, and flavonols. Higby (2) found that crude hesperidin possessed vitamin...

Sphingomonas paucimobilis, is a yellow-pigmented, aerobic, non fermentative, gram negative motile bacillus. S. paucimobilis which is widely found in nature and hospital environments rarely cause serious or life threatening infections. In this report, a case of hospital acquired bloodstream infection due to S. paucimobilis in a patient with Down syndrome who was on treatment for presumed pneumon...