background: there are many preparation regimens for bowel cleansing. given their adverse effects, none of them have been considered perfect by the endoscopists. the aim of this study was to compare the effects of two bowel cleansing regimens on clean colonic preparation the subjects'well being and electrolyte balance. materials andmethods: atotal number of 280 patients were randomly assigned to...

long-chain diacrylate crosslinkers based on linear α,ω-diols were synthesized and characterized using ftir and 1h nmr spectroscopy. the highest reaction yield (99.5%) was due to polyethylene glycol diacrylate 1000 (pegda-1000). then, kaolin-containing poly(potassium acrylate-acrylic acid) superabsorbent composites and kaolin-free counterparts were synthesized using pegda-1000.the effect of the ...

Constipation in children usually is functional and the result of stool retention. However, family physicians must be alert for red flags that may indicate the presence of an uncommon but serious organic cause of constipation, such as Hirschsprung's disease (congenital aganglionic megacolon), pseudo-obstruction, spinal cord abnormality, hypothyroidism, diabetes insipidus, cystic fibrosis, gluten...

UNLABELLED ABSTRACT QUESTION: I have come across many pediatric patients with functional constipation. Is polyethylene glycol 3350 without electrolytes a safe and effective long-term treatment option for these patients? ANSWER Functional constipation is a common and often difficult problem for parents and families to deal with. Polyethylene glycol 3350 is a safe and effective long-term laxati...

Microdroplets (3-5 nanoliters) of polyethylene glycol 8000 solution were allowed to equilibrate with plant water potential by placing the microdroplet on an abraded surface and covering it with mineral oil to prevent evaporation. Osmolality was followed by cryoscopic measurements, accurate to about +/-0.1 bar, on subnanoliter samples.Under constant environmental conditions, apparent equilibrium...

Surfaces covered with polyethylene glycol (PEG; HO-(CH(2)-CH(2)-O)(n)-H) have been shown to be biocompatible because PEG's properties yield nonimmunogenicity, nonantigenicity, and protein rejection. To produce a biocompatible surface coating, we have developed a method for grafting PEG onto activated silica films. We first deposited an amorphous silica film by plasma-enhanced chemical vapor dep...

Covalent attachment of polyethylene glycol (PEG) to active proteins (PEGylation technology) successfully generated several FDA-approved compounds, including four blockbusters, which are considered non immunogenic. However, PEG antibodies and intolerance to the infusion were reported in some patients with gout treated with pegloticase, a PEG-uricase recently approved by the FDA (Food and Drug Ad...

Conning, D. M., and Hayes, M. J. (1970). Brit.J.industr.Med.,27, 155-159. The dermal toxicity of phenol: an investigation of the most effective first-aid measures. The percutaneous toxicity of phenol in the Alderley Park (Wistar derived specific pathogen free) rat was determined and was shown to be increased by the diluents water, methylated spirit or olive oil. The toxicity was related to the ...

Ricin is a protein toxin found only in mature castor (Ricinus communis L., Euphorbiaceae) seed that enzymatically destroys the ribosomes of eukaryotes. The presence of ricin in the high protein meal of castor has historically reduced its value as an animal feed. Since ricin has the potential to be used as a chemical warfare and bioterrorism agent, the production and processing of castor has und...