We have synthesized a series of Ln(III)-containing polyethylene glycol conjugates and studied the structural and electronic properties of these complexes. These studies demonstrate that polyethylene glycol can be used to fine-tune water-exchange rates of Ln(III)-containing polyaminopolycarboxylate-type complexes; this control is desirable in developing Ln(III)-containing contrast agents for mag...

CONTEXT Colonoscopy is currently the gold standard method to examine the colon, the rectum and the terminal ileum. In order to perform the colonoscopy, it is necessary to clean the bowel and use medications that are generally poorly tolerated by the patients. OBJECTIVE Compare the tolerability, acceptability, safety and efficacy of two solutions used for intestinal preparation for a colonosco...

Polyethylene glycol dinitrates (PEGN) with molecular weights between 400 and 20 000 g·mol-1 were prepared from polyethylene glycols by esterification with nitric acid/sulfuric acid in dichloromethane. The products were characterized by gel permeation chromatography. The yield of PEGN increases with increasing reaction temperature (0-40 °C) however large liberation of nitrogen oxides was observe...

OBJECTIVE The objective of this study was to evaluate in an analytical and descriptive manner the evidence published so far on the use of polyethylene glycol (PEG), with or without electrolytes, in the management of functional constipation and the treatment of fecal impaction. METHODOLOGY Search on MEDLINE, EMBASE and Cochrane databases until May 2016 of all publications adjusted to the follo...

environmental stresses specially drought, play an important role in decreasing plant growth, particularly during germination in dry and semi dry area. to considering the effect of drought stress caused by polyethylene glycol on germination and characteristics of 2 spices of sesamum indicum, we had done factorial and complete accidental plot with 4 treatments and 3 times repetition. experimental...

physiological effect of five levels of water stress (0,-0.3,-6,-9 and -1.2mp) was studied on seed germination and tigella as well as radicule growth length in two different artemisia species namely: artemisia spicigera and artemisia fragrans. polyethylene glycol (peg) was used to provide appropriate water potentials. a total of 50 seeds were sown from each artemisia species. experimental design...

the aim of me present work was to investigate rhe potential utility of nanoparticles made of chitosan (cs) and also cs chemically modified with polyethylene glycol (cs-peg) as new vehicles for improving na^al vaccine delivery. for mis purpose, diphtheria toxoid (dt) was chosen as a model antigen. dt was entrapped within nanoparticles made of cs of different molecular weight, and also made of cs...

1. The effect of iodination on the distribution of peptide hormones into the aqueous two-phase dextran-polyethylene glycol system and on the solubility of these hormones in aqueous polyethylene glycol and in water was assessed. Hormones that were studied included insulin, glucagon and parathyroid hormone. 2. The partition coefficient of native insulin in the dextran-polyethylene glycol system s...

BACKGROUND In bronchial asthma, inflammatory cells infiltrating the airway mucosa release oxygen radicals that cause tissue damage and amplify the airway inflammation. Antioxidant enzymes may have a protective effect on the airways. OBJECTIVE The purpose of this study was to determine whether treatment of a rabbit model of chronic allergic asthma with the antioxidant enzyme superoxide dismuta...