Ampicillin resistance was first reported among clinical isolates of Haemophilus influenzae in 1972. Reports of chloramphenicol resistance followed shortly thereafter. The principal mechanism of resistance to these two antibiotics is enzymatic. Although other mechanisms have been described, they are found in comparatively few strains. The genetic information for the inactivating enzymes is plasm...

An in vitro microdilution method was developed to assess double and triple combinations of antibiotics. Five antibiotics including ciprofloxacin, amikacin, ceftazidime, piperacillin, and imipenem were tested against 10 clinical isolates of Pseudomonas aeruginosa. Each isolate was tested against ten double and nine triple combinations of the antibiotics. A 96-well plate was used to test three an...

A case control study was carried out at the medical wards of Dr. B. C. Roy Memorial Hospital for Children, Calcutta, between January and September 1989. One hundred eleven hospitalized children up to the age of 5years, receiving antibiotics for different medical problems, developed antibiotic associated diarrhea. Isolation of Clostridium difficile as sole pathogen was very low (3.6%) from these...

Background Male infertility management has made significant progress during the past three decades, especially after the introduction of intracytoplasmic sperm injection (ICSI) in 1992. However, many boys and men still suffer from primary testicular failure due to acquired or genetic causes. New and novel treatments are needed to address these issues. Spermatogenesis originates from spermatogon...

A study was conducted to investigate the effect of follicular size (small,

Abstract This study investigated the efficacy of a biphasic synthetic ?-tricalcium phosphate/calcium sulfate (?-TCP/CS) bone graft substitute for compatibility with vancomycin (V) in combination tobramycin (T) or gentamicin (G) evidenced by duration potency and prevention killing efficacies P. aeruginosa (PAO1) S. aureus (SAP231) biofilms vitro assays. Antibiotic loaded ?-TCP/CS beads were comp...

background assessment of resistance genes is imperative, as they become disseminated to bacterial flora in plants and to the indigenous bacterial community, and thus ultimately contributes to the clinical problems of antibiotic resistant pathogens. objectives the research was to assess the antibiotic characteristics and incidence of sul3 genes of stenotrophomonas maltophilia isolates recovered ...