Search Results - "BOLANN, B. J"

Validation of inductively coupled plasma atomic emission spectrometry technique (ICP-AES) for multi-element analysis of trace elements in human serum by RAHIL-KHAZEN, R, HENRIKSEN, H, BOLANN, B. J, ULVIK, R. J

“…The use of inductively coupled plasma atomic emission spectrometry (ICP-AES) for the simultaneous determination of Al, B, Ba, Be, Cd, Co, Cr, Cu, Fe, Li, Mn,…”
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Evaluation of Indicators of Cobalamin Deficiency Defined as Cobalamin-induced Reduction in Increased Serum Methylmalonic Acid by Bolann, Bjorn J, Solli, Jan Dag, Schneede, Jorn, Grottum, Kjell A, Loraas, Arne, Stokkeland, Morgan, Stallemo, Asbjorn, Schjoth, Arne, Bie, Rolf Bruun, Refsum, Helga, Ueland, Per Magne

“…Early detection of cobalamin deficiency is clinically important, and there is evidence that such deficiency occurs more frequently than previously anticipated…”
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Analytical quality goals derived from the total deviation from patients' homeostatic set points, with a margin for analytical errors by Bolann, B. J., Åsberg, A.

“…The deviation of test results from patients' homeostatic set points in steady-state conditions may complicate interpretation of the results and the comparison…”
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Urine analysis: Old and new algorithms by Bolann, B. J.

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Evaluation of methods for trace-element determination with emphasis on their usability in the clinical routine laboratory by Bolann, B. J., Rahil-Khazen, R., Henriksen, H., Isrenn, R., Ulvik, R. J.

“…Commonly used techniques for trace-element analysis in human biological material are flame atomic absorption spectrometry (FAAS), graphite furnace atomic…”
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Release of iron from ferritin by xanthine oxidase. Role of the superoxide radical by Bolann, B J, Ulvik, R J

“…Mobilization of iron from ferritin by xanthine oxidase was studied under aerobic and anaerobic conditions. Aerobic iron release amounted to approx. 3.7 nmol/ml…”
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Trace element reference values in serum determined by inductively coupled plasma atomic emission spectrometry by Rahil-Khazen, R, Bolann, B J, Ulvik, R J

“…Serum reference values for Ba, B, Cd, Cu, Fe, Mn, Li, Se, Sr, and Zn in 141 healthy Norwegians were determined. The trace element concentrations were…”
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Urine analysis and decision-making on cystitis in general practice by Bolann, B. J., Thue, G., Sandberg, S.

“…Decision-making on cystitis in general practice was studied by addressing 1171 general practitioners of whom 909 responded. A case history was supplied with a…”
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Reduced nitric oxide concentration in exhaled gas after exposure to hyperbaric hyperoxia by Taraldsøy, T, Bolann, B J, Thorsen, E

“…The objective of this study was to evaluate exhaled nitric oxide concentration (FENO) and exhaled breath condensate (EBC) pH and H2O2 as biochemical markers of…”
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Implications of probability analysis for interpreting results of leukocyte esterase and nitrite test strips by Bolann, B J, Sandberg, S, Digranes, A

“…We examined 288 urine samples, using test strips, sediment microscopy, and culture. The ability of the leukocyte esterase and nitrite test strips to detect or…”
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Decay of Superoxide catalyzed by ferritin by Bolann, Bjørn J., Ulvik, Rune J.

“…Ferritin iron can be reduced by O .− 2, released, and form a Fe(II)-chelator complex. However, the thermodynamic influence of the chelator may disturb the…”
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On the limited ability of superoxide to release iron from ferritin by BOLANN, Bjørn J., ULVIK, Rune J.

“…Reductive release of iron from ferritin may catalyze cytotoxic radical reactions like the Haber‐Weiss reaction. The ability of ·O−2 to mobilize Fe(II) from…”
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Stimulated decay of Superoxide caused by ferritin-bound copper by Bolann, Bjørn J., Ulvik, Rune J.

“…The redox interaction between O 2 − and ferritin cannot solely be regarded as a Fe(II) release reaction. We demonstrate that native copper bound to horse…”
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Tetradecylthioacetic acid and tetradecylselenoacetic acid inhibit lipid peroxidation and interact with superoxide radical by Muna, Ziad A., Bolann, Bjørn J., Chen, Xin, Songstad, Jon, Berge, Rolf K.

“…Reactive oxygen species are thought to induce cellular damage and to play a pathological role in several human diseases. Tetradecylthioacetic acid (TTA) was…”
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Improvement of a direct spectrophotometric assay for routine determination of superoxide dismutase activity by Bolann, B J, Ulvik, R J

“…The growing interest in measuring superoxide dismutase (EC 1.15.1.1) in many diseases calls for useful routine assays. For this purpose, the direct…”
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Determination of manganese superoxide dismutase activity by direct spectrophotometry by Bolann, B J, Tangerås, A, Ulvik, R J

“…A method to determine Mn-superoxide dismutase activity by measuring directly the rate of decay of O2- in a spectrophotometer, is described. Decay of O2-…”
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Leukocyturia. A comparison of screening methods by Bolann, B J

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Analytical uncertainty--how wrong can a laboratory result be? by Bolann, B J, Stølsnes, B

“…Some uncertainty encumbers the outcome of all laboratory tests. Patient conditions and handling of specimens, as well as analytical variation and systematic…”
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Multi-element analysis of trace element levels in human autopsy tissues by using inductively coupled atomic emission spectrometry technique (ICP-AES) by Rahil-Khazen, Reem, Bolann, Bjørn J., Myking, Andreas, Ulvik, Rune J.

“…Autopsy tissue samples from the brain front lobe, cerebellum, heart, kidney (cortex and medulla), liver, pancreas, spleen and ovary were analysed for Al, B,…”
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Quality assurance of laboratories outside hospitals. Use of internal control by Bolann, B J, Omenås, B

“…Norway has a national programme for quality assurance of laboratory analyses performed in general practice. A central laboratory distributes control material,…”
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