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1

Molecular dynamics of contact lens hydrogels by 1 H NMR methods

100%
Wozniak-Braszak A., Kazmierczak M., Szczepaniak J., Holderna-Natkaniec K.
Current Topics in Biophysics. Supplement
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2011
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tom 34
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nr A: Posters
2

NMR as a method for screening of fatty acids composition in edible oils

86%
Castejon D., Mateos-Aparicio I., Herrera A., Cambero M. I.
Polish Journal of Food and Nutrition Sciences
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2011
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tom 61
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nr Suppl.1
3
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Content available

Rheological and water binding properties of a 'fat-in-water' emulsion stabilized by starch

86%
Poliszko S., Rezler R., Baranowska H. M., Klimek-Poliszko D.
Acta Agrophysica
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2003
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tom 02
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nr 2[96]
4

Identification of 2-[2-nitro-4-[trifluoromethyl]benzoyl]-cyclohexane-1,3-dione metabolites in urine of patients suffering from tyrosinemia type I with the use of1H and 19F NMR spectroscopy

72%
Szczecinski P., Lamparska D., Gryff-Keller A., Gradowska W.
Acta Biochimica Polonica
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2008
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tom 55
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nr 4
749-752
Organic extracts of six urine samples from children treated with nitisinone, a medicine against tyrosinemia type I, were investigated by 1H and 19F NMR spectroscopy. The presence of unchanged 2-[2-nitro-4-(trifluoromethyl)benzoyl]cyclohexane-1,3-dione (NTBC), 6-hydroxy-2-[2-nitro-4-(trifluoromethyl)benzoyl]cyclohexane-1,3-dione (NTBC-OH) and 2-nitro-4-trifluoromethylbenzoic acid (NTFA) as well as a few other unidentified compounds containing CF3 group was documented.
5
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1H NMR-based metabolic profiling of urine from mice fed Lentinula edodes-derived polysaccharides

72%
Xu X., Yang J., Ning Z., Zhang X.
Polish Journal of Food and Nutrition Sciences
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2018
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tom 68
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nr 3
A heteropolysaccharide, named L2, from Lentinula edodes has been proved to possess immunostimulating and anti-ageing activities in previous studies, but its acting mechanism was not completely understood. In this study, 1 H NMR spectroscopy approach was employed to investigate the metabolic profi les of the urine from adult mice after L2 intervention. Using principal component analysis (PCA) and partial least squares-discriminate analysis (PLS-DA), 22 potential biomarkers were found to be mainly involved in some metabolic pathways: amino acid metabolism, energy metabolism, lipid metabolism, tricarboxylic acid (TCA) cycle, urea cycle and gut microbiota metabolism. Among them, the signifi cantly altered metabolites include: elevated glutamate (75%) and creatine (64%); decreased proline (65%), betaine (58%), fucose (63%) and dimethylamine (59%). In conclusion, the present data is helpful to understand the mechanisms related to previously confi rmed immunomodulation and anti-aging effects of L2, and provide valuable information for mining new functions of L2.
6

15N magnetic relaxation study of backbone dynamics of the ribosome-associated cold shock response protein Yfia of Escherichia coli

58%
Zhukov I., Bayer P., Scholermann B., Ejchart A.
Acta Biochimica Polonica
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2007
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tom 54
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nr 4
769-775
In the solution structure of the ribosome-associated cold shock response protein Yfia of Escherichia coli in the free state two structural segments can be distinguished: a well structured, rigid N-terminal part displaying a βαβββα topology and a flexible C-terminal tail comprising last 20 amino-acid residues. The backbone dynamics of Yfia protein was studied by 15N nuclear magnetic relaxation at three magnetic fields and analyzed using model-free approach. The over all diffusional tumbling of the N-terminal part is strongly anisotropic with a number of short stretches showing increased mobility either on a subnanosecond time scale, or a micro- to milli second time scale, or both. In contrast, the unstructured polypeptide chain of the C-terminal part, which cannot be regarded as a rigid structure, shows the predominance of fast local motions over slower ones, both becoming faster closer to the C-terminus.
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