Urea (U), hydroxyurea (HU), and thiourea (TU), in various concentrations, were added to chemically defined plant tissue culture medium on which Meloidogyne javanica was reared on excised tomato roots. Concentrations as low as 3 ppm HU or 12 ppm TU inhibited nematode maturation by 70-90% 4 weeks after inoculation, and the coenocytes in the parasitized tissue were poorly developed. Gall weight wa...

Background. Establishing reference intervals (RIs) in clinical laboratories is essential, as these can vary due to inter-individual variability well the analytical methods used. The purpose of this study was determine RIs for various biochemical markers Chilean adult population. Methods. A sample 1,143 individuals selected from UC Temuco Clinical Laboratory database, which were analysed by sex....

The objective of this research was to provide a useful approach of polymer synthesis for accelerating the fast cure of phenol-urea-formaldehyde (PUF) resin as wood adhesive by optimizing its structure and composition. The PUF resins containing high contents of very reactive groups such as para-methylol groups were synthesized by reacting methylolurea, phenol, and formaldehyde in the presence of...

The marine macrophyte Ulva prolifera is the dominant green-tide-forming seaweed in the southern Yellow Sea, China. Here we assessed, in the laboratory, the growth rate and nutrient uptake responses of U. prolifera to different nutrient treatments. The growth rates were enhanced in incubations with added organic and inorganic nitrogen [i.e. nitrate (NO3(-)), ammonium (NH4(+)), urea and glycine] ...

Serum urea concentrations were measured in Large White pigs from lines divergently selected for components of efficient lean growth rate and performance tested over three 14-d test periods starting at 30, 50, and 75 kg. Two methods of performance testing were used. Phase-fed pigs were fed to appetite isoenergetic diets differing in total lysine:energy ratio (0.58, 0.69, 0.81, 0.91, 1.01, 1.12, ...

Biochemical changes occurring over 7 months of estivation were studied in two species of land snail, Oreohelix strigosa (Gould) and O. subrudis (Reeve), to determine whether differential mortality during estivation is related to different energetic strategies. Laboratory-maintained snails, which were fed ad libitum prior to estivation, were compared with snails collected from the field and indu...

or returned to the circulation (as in UO-reinf rats), exert a diuretic effect. In additional experiments, UO rats infused with urea exhibited post-obstructive diuresis, if extracellular volume contraction was prevented. This result suggests that urea may be an important diuretic factor in post-obstructive diuresis, but does not exclude possible roles for other humoral factors. The intact kidney...

Penicillamine has been successfully reintroduced and continued for a minimum of 13 months in 5 patients who developed proteinuria during the first course of the drug. The daily maintenance dose during the second course was 150--250 mg taken midway between 2 meals. Proteinuria did not recur; no significant excretion of fibrin degradation products occurred; complement, urea, creatinine, and serum...

There are indications that the dilution of botulinum toxin affects dose-response. This must be considered when comparing different products. The aim of this study was to estimate a concentration of Dysport in physiological saline that is approximately equivalent to Botox 100 U/ml with respect to anhidrotic and muscular effect. Thirty-six patients with primary palmar hyperhidrosis were treated w...