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A novel and sensitive resonance scattering assay for detection of urea in serum coupled urease catalytic reaction and NH4+ associated particle reaction
Authors: Liang A, Qin H, Zhou L, Zhang Y, Ouyang H, Wang P, Jiang Z.
Journal: Bioprocess Biosyst Eng (2011): 639

Dimethyl formamide-free, urea-NaCl fluorescence in situ hybridization assay for Staphylococcus aureus
Authors: Lawson TS, Connally RE, Vemulpad S, Piper JA.
Journal: Lett Appl Microbiol. (2011)

Evaluation of diuron (3-[3,4-dichlorophenyl]-1,1-dimethyl urea) in a two-stage mouse skin carcinogenesis assay
Authors: Ferrucio B, Franchi CA, Boldrin NF, de Oliveira ML, de Camargo JL.
Journal: Toxicol Pathol (2010): 756

Sample prep for proteomics of breast cancer: proteomics and gene ontology reveal dramatic differences in protein solubilization preferences of radioimmunoprecipitation assay and urea lysis buffers
Authors: Ngoka LC., undefined
Journal: Proteome Sci (2008): 30

Improvement of the decision efficiency of the accuracy profile by means of a desirability function for analytical methods validation. Application to a diacetyl-monoxime colorimetric assay used for the determination of urea in transdermal iontophoretic extr
Authors: Rozet E, Wascotte V, Lecouturier N, Preat V, Dewe W, Boulanger B, Hubert P.
Journal: Anal Chim Acta (2007): 239

Immobilization of urease from pigeonpea (Cajanus cajan) on agar tablets and its application in urea assay
Authors: Mulagalapalli S, Kumar S, Kalathur RC, Kayastha AM.
Journal: Appl Biochem Biotechnol (2007): 291

New enzymatic assay for serum urea nitrogen using urea amidolyase
Authors: Kimura S, Iyama S, Yamaguchi Y, Kanakura Y.
Journal: J Clin Lab Anal (2003): 52

Utilization of lacrimal urea assay in the monitoring of hemodialysis: conditions, limitations and lacrimal arginase characterization
Authors: Farkas A, Vamos R, Bajor T, Mullner N, Lazar A, Hraba A.
Journal: Exp Eye Res (2003): 183

Enzymatic assay for determination of bicarbonate ion in plasma using urea amidolyase
Authors: Kimura S, Yamanishi H, Iyama S, Yamaguchi Y, Kanakura Y.
Journal: Clin Chim Acta (2003): 179

Stool antigen assay (HpSA) is less reliable than urea breath test for post-treatment diagnosis of Helicobacter pylori infection
Authors: Bilardi C, Biagini R, Dulbecco P, Iiritano E, Gambaro C, Mele MR, Borro P, Tessieri L, Zentilin P, Mansi C, Vigneri S, Savarino V.
Journal: Aliment Pharmacol Ther (2002): 1733

Determination of the optimal cut-off value for the [13C]-urea breath test based on a Helicobacter pylori-specific polymerase chain reaction assay
Authors: Yoshida H, Hirota K, Ogura K, Maeda S, Shiratori Y, Sasaki Y, Omata M.
Journal: J Gastroenterol Hepatol (2000): 155

Refinement of the pressure assay for milk urea nitrogen
Authors: Jenkins DM, Delwiche MJ, DePeters EJ, BonDurant RH.
Journal: J Dairy Sci (2000): 2042

Analytic validation of an infrared milk urea assay and effects of sample acquisition factors on milk urea results
Authors: Godden SM, Lissemore KD, Kelton DF, Lumsden JH, Leslie KE, Walton JS.
Journal: J Dairy Sci (2000): 435

Discrepancy between Helicobacter pylori stool antigen assay and urea breath test in the detection of Helicobacter pylori infection
Authors: Masoero G, Lombardo L, Della Monica P, Vicari S, Crocilla C, Duglio A, Pera A.
Journal: Dig Liver Dis (2000): 285

Chemical assay of urea for automated sensing in milk
Authors: Jenkins DM, Delwiche MJ, Depeters EJ, Bondurant RH.
Journal: J Dairy Sci (1999): 1999

The serum 13C-bicarbonate assay: a replacement for urea breath tests
Authors: Moayyedi P., undefined
Journal: Helicobacter (1998): 64

Luminometric single step urea assay using ATP-hydrolyzing urease
Authors: Naslund B, Stahle L, Lundin A, Anderstam B, Arner P, Bergstrom J.
Journal: Clin Chem (1998): 1964

Kinetic assay of serum and urine for urea with use of urease and leucine dehydrogenase
Authors: Morishita Y, Nakane K, Fukatsu T, Nakashima N, Tsuji K, Soya Y, Yoneda K, Asano S, Kawamura Y.
Journal: Clin Chem (1997): 1932

New enzymatic assay with urea amidolyase for determining potassium in serum
Authors: Kimura S, Iyama S, Yamaguchi Y, Hayashi S, Fushimi R, Amino N.
Journal: Ann Clin Biochem (1997): 384

Determination of cell volume changes by an inulin-urea assay in 96-well plates: a comparison with coulter counter analysis
Authors: Oehler R, Hefel B, Roth E.
Journal: Anal Biochem (1996): 269

Simple and rapid quantitative assay of 13C-labelled urea in human serum using liquid chromatography-atmospheric pressure chemical ionization mass spectrometry
Authors: Tanigawa T, Mizo-oku Y, Moriguchi K, Suzuki T, Osumi T, Odomi M.
Journal: J Chromatogr B Biomed Appl (1996): 135

GC-MS determination of ratios of stable-isotope labelled to natural urea using [13C15N2]urea for studying urea kinetics in serum and as a means to validate routine methods for the quantitative assay of urea in dialysate
Authors: Wolthers BG, Tepper T, Withag A, Nagel GT, de Haan TH, van Leeuwen JJ, Stegeman CA, Huisman RM.
Journal: Clin Chim Acta (1994): 29

A liquid chromatographic assay for urea in over-the-counter carbamide peroxide products
Authors: Walker TA., undefined
Journal: J Pharm Biomed Anal (1994): 1277

Interference in coupled-enzyme assay of urea nitrogen by excess endogenous enzyme
Authors: Harrison SP., undefined
Journal: Clin Chem (1993): 911

The diacetylmonoxime assay of urea, its application to the assay of diacetylmonoxime and a comparison with other methods for the analysis of diacetylmonoxime
Authors: Dawson RM., undefined
Journal: J Appl Toxicol (1993): 277

Assay of urea by immobilized urease coupled to a differential pH-meter
Authors: Pietta PG, Mauri PL, Gardana C, Pace M, Agnellini D.
Journal: Ann N Y Acad Sci (1992): 257

Colorimetric reagent for assay of urea
Authors: Lopez-Castro G., undefined
Journal: Clin Chem (1991): 1804

Turbidimetric assay of tylosin in animal feeds containing urea
Authors: Coleman MR, Mowrey DH.
Journal: J Assoc Off Anal Chem (1990): 927

Antitumor activity of N-(5-indanylsulfonyl)-N'-(4-chlorophenyl)-urea, LY 186641 against various human cancers using subrenal capsule assay
Authors: Inoue K, Wang Y, Shibata H, Mukaiyama T, Hamada K, Ogawa M.
Journal: Gan To Kagaku Ryoho (1990): 85

A kinetic assay for urea in undiluted urine specimens
Authors: Scott P, Maguire GA.
Journal: Clin Chem (1990): 1830

Urea dependence of thiol-disulfide equilibria in thioredoxin: confirmation of the linkage relationship and a sensitive assay for structure
Authors: Lin TY, Kim PS.
Journal: Biochemistry (1989): 5282

N-acetyl-beta-D-glucosaminidase assay in urine: urea inhibition
Authors: Mueller PW, MacNeil ML, Steinberg KK.
Journal: J Anal Toxicol (1989): 188

Enzymic urea assay: a new colorimetric method based on hydrogen peroxide measurement
Authors: Lespinas F, Dupuy G, Revol F, Aubry C.
Journal: Clin Chem (1989): 654

Improved turbidimetric assay of tylosin in premix and animal feeds not containing urea
Authors: Coleman MR., undefined
Journal: J Assoc Off Anal Chem (1989): 454

Assay of stable isotope labelled urea in biological fluids by selected ion monitoring
Authors: Nelson JE, Ruo TI.
Journal: Clin Chim Acta (1988): 59

The azocasein-urea-pepstatin assay discriminates between lysosomal proteinases
Authors: Wieder, undefined and ers B, Kirschke H, Schaper S.
Journal: Biomed Biochim Acta (1986): 1477

An enzyme-linked radial diffusion assay for urea
Authors: Simpson DS, Bradford NC.
Journal: Med Lab Sci (1983): 21

Automated sequential urea and glucose assay in one cuvet
Authors: Prencipe L, Brenna S, Sordi CE.
Journal: Clin Chem (1983): 1315

Blood urea assay by the Reflotest-urea method
Authors: Watson AD., undefined
Journal: Aust Vet J (1982): 171

Fractionation and quantitation of egg antigens from Schistosoma japonicum by the single-tube kinetic-dependent enzyme-linked immunosorbent assay (k-ELISA): higher antigenic activity in urea-soluble than in aqueous-soluble fractions
Authors: Tsang VC, Tao Y, Qui L, Xue H.
Journal: J Parasitol (1982): 1034

Systematic fractionation of Schistosoma mansoni urea-soluble egg antigens and their evaluation by the single-tube, kinetic-dependent, enzyme-linked, immunosorbent assay (K-ELISA)
Authors: Tsang VC, Tao Y, Maddison SE.
Journal: J Parasitol (1981): 340

The chemistry of the diacetyl monoxime assay of urea in biological fluids
Authors: Butler AR, Hussain I, Leitch E.
Journal: Clin Chim Acta (1981): 357

Demonstration of C-type viruses in N-methyl-N-nitroso urea (MNU)-induced leukemia of mice by reverse transcriptase activity and XC assay
Authors: Fey F, Rentz E, Drescher B, Ehm I, Baumbach L, Micheel B.
Journal: Neoplasma (1980): 183

Evaluation of an engineering model of the "EKTACHEM" analyzer for glucose and urea assay
Authors: Cate JCt, Hedrick R, Taylor M, McGlothlin CD.
Journal: Clin Chem (1980): 266

Simple routine assay for serum urea using immobilized urease
Authors: Borrebaeck C, Borjeson J.
Journal: Scand J Clin Lab Invest (1980): 169

Fluorometric assay for urea in urine, plasma, and tubular fluid
Authors: Roman RJ, Bonventre JV, Lechene CP.
Journal: Anal Biochem (1979): 136

The assay and stability of chlorpropamide in solid dispersion with urea
Authors: Ford JL, Stewart AF, Rubinstein MH.
Journal: J Pharm Pharmacol (1979): 726

Effect of evaporation from sample cups on urea nitrogen assay
Authors: Nielsen LG, Groves BJ, Ash KO.
Journal: Am J Med Technol (1978): 112

Assay of carbromal and its main metabolite (2-ethyl-butyryl-urea) in biological fluids (author's transl)
Authors: Post D, Faber M.
Journal: Klin Wochenschr (1976): 697

Differential assay for urea and citrulline. Automated and manual procedures
Authors: Blumenkrantz N, Asboe-Hansen G.
Journal: Clin Biochem (1975): 293

An improved electrode for the assay of urea in blood
Authors: Guilbault GG, Nagy G, Kuan SS.
Journal: Anal Chim Acta (1973): 195

Measurements of serum urea nitrogen by conductivimetric urease assay
Authors: Horak E, Sunderman FW, Jr.
Journal: Ann Clin Lab Sci (1972): 425

A radioisotopic assay system for enzymes of the ornithine-urea cycle
Authors: Rowe WC, Huggins AK, Baldwin E.
Journal: Anal Biochem (1970): 167

Assessment of an assay system (urograph) for the determination of urea nitrogen
Authors: Logan JE, Taada DR, Krynski IA, Allen RH.
Journal: Can Med Assoc J (1969): 335

Assay of cardiac lactate dehydrogenase iso-enzymes by means of urea
Authors: Konttinen A, Lindy S.
Journal: Acta Med Scand (1967): 513

Effect of urea on the determination of free amino acid in the urine by microbiological assay
Authors: Kawano T, Asakawa M.
Journal: Yakugaku Zasshi (1966): 695

Application of the 32-P gonadotrophin assay: HCG, PMS, and the effect of 6M urea upon these trophins
Authors: Connell GM., undefined
Journal: Endocrinology (1966): 1159

A rapid colorimetric assay for urea
Authors: Timmermans CJ., undefined
Journal: Clin Chim Acta (1962): 887

Comparative biochemistry of urea synthesis. I. Methods for the quantitative assay of urea cycle enzymes in liver
Authors: Brown GW, Jr., Cohen PP.
Journal: J Biol Chem (1959): 1769

On the assay of urea stibamine
Authors: Bose BC, Iyengar NK, Mukerji B.
Journal: Indian J Med Res (1945): 151