Enhanced electrokinetic properties and antimicrobial activities of biodegradable chitosan/organo-bentonite composites.

In this study, chitosan (CS), Na-bentonite (Na-BNT) and chitosan/organo-bentonite (CS/O-BNT) biodegradable composites having three different compositions were investigated. Electrokinetic measurements were examined in aqueous medium by taking the effects pH, electrolytes (NaCl and BaCl), surfactants (CTAB and SDS), and temperature into account. It was noticed that the initial ζ-potential of Na-BNT shifted from negative (ζ=-35mV) to positive region (ζ=+13mV) with increasing polycationic CS content in the composite structure as aimed.

Evaluation of the protective effect of agmatine against cisplatin nephrotoxicity with 99mTc-DMSA renal scintigraphy and cystatin-C.

Background: The aim of the current study was to investigate whether agmatine (AGM) has a protective effect against cisplatin-induced nephrotoxicity.

Materials And Methods: Thirty-two rats were randomly divided into four groups: (1) Saline (control); (2) Cisplatin (CDDP; 7.5 mg/kg intraperitoneally); (3) Agmatine (AGM; 10 mg/kg intraperitoneally); (4) Cisplatin plus agmatine (CDDP + AGM).

Bilateral generalised synovial chondromatosis of the knee: Bone scintigraphic demonstration with radiologic correlation.

A 67-year-old woman with a history of bilateral progressive knee pain and swelling was referred for (99m)Tc-methyl diphosphonate bone scintigraphy. Flow and blood pool images showed bilateral heterogeneous increased uptake and delayed phase revealed mass-looking lobulated heterogeneous increased activity in both of knees extending distal part of the femoral shaft, but no other pathologic uptake was found in rest of the body. A diagnosis of synovial chondromatosis was made when correlated with X-ray and computed tomography.

Comparative evaluation of dietary supplementation with mannan oligosaccharide and oregano essential oil in forced molted and fully fed laying hens between 82 and 106 weeks of age.

The aim of this study was to investigate the efficacy of feed-grade preparations of mannan oligosaccharides ( MOS: ) and oregano essential oil ( OEO: ) in forced molted or fully fed 82-week-old, laying hens. A 2 × 3 factorial experiment investigated the influence of molting vs. full feeding and dietary supplements [i.