Aminoglycosides are an important group of antibiotics whose basic compounds contain aminosugars. They are produced either by Streptomyces spp (streptomycin, kanamycin, tobramycin, and neomycin) or Micromonospora spp (the gentamicins and sissomicin), which accounts for the different spellings. Semisynthetic derivatives have also been produced (for example, amikacin from kanamycin and netilmicin ...

Enhanced biological phosphorus removal (EBPR) is a widely applied process for the removal of carbon and phosphorus from wastewater, which is achieved through the use of polyphosphate accumulating organisms (PAO). Conventional wastewater treatment plants utilise floccular sludge, which form small, suspended biofilm aggregates for the treatment of wastewater. A novel alternative to conventional f...

The aim of this study was to formulate and evaluate stavudine floating microballoons for controlled drug release. Initially, the drug-loaded low-density granular pellets were prepared with hydroxypropyl methylcellulose E5 grade and by using isopropyl alcohol as a granulating fluid. Further, the low-density granular pellets were subjected to microencapsulation by an emulsion evaporation techniqu...

Iron nanomaterials are of considerable interest for application to nanotechnology-related fields including environmental catalysis, biomedical imaging, drug delivery and hyperthermia, because of their superparamagnetic characteristics and high catalytic abilities. However, information about potential risks of iron nanomaterials is limited. The present study assessed pulmonary responses to a sin...

In osteomyelitis for example, there is frequently the history of an antecedent injury to the affected part, and it may be taken for granted, that this injury in some way predisposes to a localization of bacteria, which may happen to be present in the circulating blood or elsewhere. In syphilis, tertiary lesions appear more frequently in superficial bones which are more exposed to injury than in...

Previous history.?About three years ago the boy had a continued fever lasting for about six weeks. This was very severe and during its course he had convulsions and was delirious. Towards the end of this pyrexial attack the lobes of the ears, the ate nasa? and the scalp on the vertex became 'black' (probably gangrenous). One day he scratched his scalp and the whole of it came away over an area ...

The new coronavirus infection COVID-19 (Coronavirus Disease 2019) caused by SARS-CoV-2, has posed scientific and public health challenges. problem of treating still remains, the pathogenesis needs to be studied in detail, including involvement mast cells (MCs) their specific proteases. aim this study was characterize role cell proteases chymase, tryptase, carboxypeptidase A3 (CPA3) lung damage ...

Objective- To evaluate the effects of autologous platelet-rich plasma (PRP) on wound healing in dogs. Design- Experimental in-vivo study. Animals- 5 mix-breed male adult dogs. Procedures- Under general anesthesia, six 2 × 2-cm, full-thickness skin wounds were created on the back of dogs symmetrically. In each dog, three right side wounds were treated topically with 1.5 ml PRP jelly, whereas lef...