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Items: 1 to 50 of 64

1.

Comparative Bioavailability of Synthetic B12 and Dietary Vitamin B12 Present in Cow and Buffalo Milk: A Prospective Study in Lactovegetarian Indians.

Mahalle N, Bhide V, Greibe E, Heegaard CW, Nexo E, Fedosov SN, Naik S.

Nutrients. 2019 Feb 1;11(2). pii: E304. doi: 10.3390/nu11020304.

2.

Kinetic analysis of transcellular passage of the cobalamin-transcobalamin complex in Caco-2 monolayers.

Juul CB, Fedosov SN, Nexo E, Heegaard CW.

Mol Biol Cell. 2019 Feb 15;30(4):467-477. doi: 10.1091/mbc.E18-09-0571. Epub 2018 Dec 19.

PMID:
30565973
3.

Differences in Tissue Distribution of Cyano⁻B12 and Hydroxo⁻B12 One Week after Oral Intake: An Experimental Study in Male Wistar Rats.

Greibe E, Nymark O, Fedosov SN, Heegaard CW, Nexo E.

Nutrients. 2018 Oct 12;10(10). pii: E1487. doi: 10.3390/nu10101487.

4.

Dietary Intake of Vitamin B12 is Better for Restoring a Low B12 Status Than a Daily High-Dose Vitamin Pill: An Experimental Study in Rats.

Greibe E, Nymark O, Fedosov SN, Heegaard CW, Nexo E.

Nutrients. 2018 Aug 15;10(8). pii: E1096. doi: 10.3390/nu10081096.

5.

The tissue profile of metabolically active coenzyme forms of vitamin B12 differs in vitamin B12-depleted rats treated with hydroxo-B12 or cyano-B12.

Greibe E, Kornerup LS, Juul CB, Fedosov SN, Heegaard CW, Nexo E.

Br J Nutr. 2018 Jul;120(1):49-56. doi: 10.1017/S000711451800123X.

PMID:
29936920
6.

The Human Serum Metabolome of Vitamin B-12 Deficiency and Repletion, and Associations with Neurological Function in Elderly Adults.

Brito A, Grapov D, Fahrmann J, Harvey D, Green R, Miller JW, Fedosov SN, Shahab-Ferdows S, Hampel D, Pedersen TL, Fiehn O, Newman JW, Uauy R, Allen LH.

J Nutr. 2017 Aug 9. pii: jn248278. doi: 10.3945/jn.117.248278. [Epub ahead of print]

7.

Tissue distribution of oral vitamin B12 is influenced by B12 status and B12 form: an experimental study in rats.

Kornerup LS, Fedosov SN, Juul CB, Greibe E, Heegaard CW, Nexo E.

Eur J Nutr. 2018 Jun;57(4):1459-1469. doi: 10.1007/s00394-017-1424-0. Epub 2017 Mar 20.

8.

False low holotranscobalamin levels in a patient with a novel TCN2 mutation.

Keller P, Rufener J, Schild C, Fedosov SN, Nissen PH, Nexo E.

Clin Chem Lab Med. 2016 Nov 1;54(11):1739-1743. doi: 10.1515/cclm-2016-0063.

9.

Reply to LR Solomon.

Brito A, Fedosov SN, Miller JW, Green R, Uauy R, Allen LH.

Am J Clin Nutr. 2016 May;103(5):1379. doi: 10.3945/ajcn.116.133322. No abstract available.

PMID:
27140535
10.

Absorption and retention of free and milk protein-bound cyano- and hydroxocobalamins. An experimental study in rats.

Kornerup LS, Juul CB, Fedosov SN, Heegaard CW, Greibe E, Nexo E.

Biochimie. 2016 Jul;126:57-62. doi: 10.1016/j.biochi.2015.11.024. Epub 2015 Nov 25.

11.

Vitamin B-12 treatment of asymptomatic, deficient, elderly Chileans improves conductivity in myelinated peripheral nerves, but high serum folate impairs vitamin B-12 status response assessed by the combined indicator of vitamin B-12 status.

Brito A, Verdugo R, Hertrampf E, Miller JW, Green R, Fedosov SN, Shahab-Ferdows S, Sanchez H, Albala C, Castillo JL, Matamala JM, Uauy R, Allen LH.

Am J Clin Nutr. 2016 Jan;103(1):250-7. doi: 10.3945/ajcn.115.116509. Epub 2015 Nov 25.

PMID:
26607937
12.

Cobalamin coenzyme forms are not likely to be superior to cyano- and hydroxyl-cobalamin in prevention or treatment of cobalamin deficiency.

Obeid R, Fedosov SN, Nexo E.

Mol Nutr Food Res. 2015 Jul;59(7):1364-72. doi: 10.1002/mnfr.201500019. Epub 2015 May 12. Review.

13.

Combined indicator of vitamin B12 status: modification for missing biomarkers and folate status and recommendations for revised cut-points.

Fedosov SN, Brito A, Miller JW, Green R, Allen LH.

Clin Chem Lab Med. 2015 Jul;53(8):1215-25. doi: 10.1515/cclm-2014-0818.

PMID:
25720072
14.

The extracellular heme-binding protein HbpS from the soil bacterium Streptomyces reticuli is an aquo-cobalamin binder.

Ortiz de Orué Lucana D, Fedosov SN, Wedderhoff I, Che EN, Torda AE.

J Biol Chem. 2014 Dec 5;289(49):34214-28. doi: 10.1074/jbc.M114.585489. Epub 2014 Oct 23.

15.

An amphiphilic, catalytically active, vitamin B12 derivative.

Giedyk M, Fedosov SN, Gryko D.

Chem Commun (Camb). 2014 May 11;50(36):4674-6. doi: 10.1039/c4cc01064g.

PMID:
24623153
16.

Analysis of oil-biodiesel samples by high performance liquid chromatography using the normal phase column of new generation and the evaporative light scattering detector.

Fedosov SN, Fernandes NA, Firdaus MY.

J Chromatogr A. 2014 Jan 24;1326:56-62. doi: 10.1016/j.chroma.2013.12.043. Epub 2013 Dec 24.

PMID:
24394149
17.
18.

Reconstitution of the B12 macrocycle by radical ring closure of a blue secocorrin.

Ruetz M, Fedosov SN, Kräutler B.

Angew Chem Int Ed Engl. 2012 Jul 2;51(27):6780-4. doi: 10.1002/anie.201202878. Epub 2012 Jun 14. No abstract available.

PMID:
22700309
19.

Comparison of recombinant human haptocorrin expressed in human embryonic kidney cells and native haptocorrin.

Furger E, Fedosov SN, Lildballe DL, Waibel R, Schibli R, Nexo E, Fischer E.

PLoS One. 2012;7(5):e37421. doi: 10.1371/journal.pone.0037421. Epub 2012 May 25.

20.

Physiological and molecular aspects of cobalamin transport.

Fedosov SN.

Subcell Biochem. 2012;56:347-67. doi: 10.1007/978-94-007-2199-9_18. Review.

PMID:
22116708
21.

A blue corrinoid from partial degradation of vitamin B12 in aqueous bicarbonate: spectra, structure, and interaction with proteins of B12 transport.

Fedosov SN, Ruetz M, Gruber K, Fedosova NU, Kräutler B.

Biochemistry. 2011 Sep 20;50(37):8090-101. doi: 10.1021/bi200724s. Epub 2011 Aug 24.

PMID:
21851077
22.

Analysis of biodiesel conversion using thin layer chromatography and nonlinear calibration curves.

Fedosov SN, Brask J, Xu X.

J Chromatogr A. 2011 May 13;1218(19):2785-92. doi: 10.1016/j.chroma.2011.01.067. Epub 2011 Jan 31.

PMID:
21316691
23.

Metabolic signs of vitamin B(12) deficiency in humans: computational model and its implications for diagnostics.

Fedosov SN.

Metabolism. 2010 Aug;59(8):1124-38. doi: 10.1016/j.metabol.2009.09.036. Epub 2010 Jan 6.

PMID:
20051280
24.

Release of toxic Gd3+ ions to tumour cells by vitamin B12 bioconjugates.

Siega P, Wuerges J, Arena F, Gianolio E, Fedosov SN, Dreos R, Geremia S, Aime S, Randaccio L.

Chemistry. 2009 Aug 10;15(32):7980-9. doi: 10.1002/chem.200802680.

PMID:
19562781
25.
26.

Mechanisms of discrimination between cobalamins and their natural analogues during their binding to the specific B12-transporting proteins.

Fedosov SN, Fedosova NU, Kräutler B, Nexø E, Petersen TE.

Biochemistry. 2007 May 29;46(21):6446-58. Epub 2007 May 8.

PMID:
17487979
27.

Application of a fluorescent cobalamin analogue for analysis of the binding kinetics. A study employing recombinant human transcobalamin and intrinsic factor.

Fedosov SN, Grissom CB, Fedosova NU, Moestrup SK, Nexø E, Petersen TE.

FEBS J. 2006 Oct;273(20):4742-53. Epub 2006 Sep 19.

28.

Structural basis for mammalian vitamin B12 transport by transcobalamin.

Wuerges J, Garau G, Geremia S, Fedosov SN, Petersen TE, Randaccio L.

Proc Natl Acad Sci U S A. 2006 Mar 21;103(12):4386-91. Epub 2006 Mar 14.

29.

Characterization of a monoclonal antibody with specificity for holo-transcobalamin.

Orning L, Rian A, Campbell A, Brady J, Fedosov SN, Bramlage B, Thompson K, Quadros EV.

Nutr Metab (Lond). 2006 Jan 4;3:3.

30.

Mapping the functional domains of human transcobalamin using monoclonal antibodies.

Fedosov SN, Orning L, Løvli T, Quadros EV, Thompson K, Berglund L, Petersen TE.

FEBS J. 2005 Aug;272(15):3887-98.

31.

Composite organization of the cobalamin binding and cubilin recognition sites of intrinsic factor.

Fedosov SN, Fedosova NU, Berglund L, Moestrup SK, Nexø E, Petersen TE.

Biochemistry. 2005 Mar 8;44(9):3604-14.

PMID:
15736970
32.

Assembly of the intrinsic factor domains and oligomerization of the protein in the presence of cobalamin.

Fedosov SN, Fedosova NU, Berglund L, Moestrup SK, Nexø E, Petersen TE.

Biochemistry. 2004 Nov 30;43(47):15095-102.

PMID:
15554717
33.

Recombinant human intrinsic factor expressed in plants is suitable for use in measurement of vitamin B12.

Bor MV, Fedosov SN, Laursen NB, Nexø E.

Clin Chem. 2003 Dec;49(12):2081-3. No abstract available.

34.

Human intrinsic factor expressed in the plant Arabidopsis thaliana.

Fedosov SN, Laursen NB, Nexø E, Moestrup SK, Petersen TE, Jensen EØ, Berglund L.

Eur J Biochem. 2003 Aug;270(16):3362-7.

35.

Tetranectin binds hepatocyte growth factor and tissue-type plasminogen activator.

Westergaard UB, Andersen MH, Heegaard CW, Fedosov SN, Petersen TE.

Eur J Biochem. 2003 Apr;270(8):1850-4.

36.

Holo-transcobalamin is an early marker of changes in cobalamin homeostasis. A randomized placebo-controlled study.

Nexo E, Hvas AM, Bleie Ø, Refsum H, Fedosov SN, Vollset SE, Schneede J, Nordrehaug JE, Ueland PM, Nygard OK.

Clin Chem. 2002 Oct;48(10):1768-71.

37.

Quantification of holo-transcobalamin, a marker of vitamin B12 deficiency.

Nexo E, Christensen AL, Hvas AM, Petersen TE, Fedosov SN.

Clin Chem. 2002 Mar;48(3):561-2. No abstract available.

38.

Direct assay for cobalamin bound to transcobalamin (holo-transcobalamin) in serum.

Ulleland M, Eilertsen I, Quadros EV, Rothenberg SP, Fedosov SN, Sundrehagen E, Orning L.

Clin Chem. 2002 Mar;48(3):526-32.

39.

Comparative analysis of cobalamin binding kinetics and ligand protection for intrinsic factor, transcobalamin, and haptocorrin.

Fedosov SN, Berglund L, Fedosova NU, Nexo E, Petersen TE.

J Biol Chem. 2002 Mar 22;277(12):9989-96. Epub 2002 Jan 11.

40.

Crystallization and preliminary X-ray diffraction analysis of human transcobalamin, a vitamin B12-transporting protein.

Garau G, Fedosov SN, Petersen TE, Geremia S, Randaccio L.

Acta Crystallogr D Biol Crystallogr. 2001 Dec;57(Pt 12):1890-2. Epub 2001 Nov 21.

PMID:
11717507
41.

Measurement of transcobalamin by ELISA.

Nexo E, Christensen AL, Petersen TE, Fedosov SN.

Clin Chem. 2000 Oct;46(10):1643-9.

42.

Kinetic and structural characterization of a two-domain streptokinase: dissection of domain functionality.

Johnsen LB, Rasmussen LK, Petersen TE, Etzerodt M, Fedosov SN.

Biochemistry. 2000 May 30;39(21):6440-8.

PMID:
10828958
43.

Functional analyses of two cellular binding domains of bovine lactadherin.

Andersen MH, Graversen H, Fedosov SN, Petersen TE, Rasmussen JT.

Biochemistry. 2000 May 23;39(20):6200-6.

PMID:
10821695
44.
45.

Sequence, S-S bridges, and spectra of bovine transcobalamin expressed in Pichia pastoris.

Fedosov SN, Berglund L, Nexo E, Petersen TE.

J Biol Chem. 1999 Sep 10;274(37):26015-20.

46.

A refined kinetic analysis of plasminogen activation by recombinant bovine tissue-type plasminogen activator indicates two interconvertible activator forms.

Johnsen LB, Ravn P, Berglund L, Petersen TE, Rasmussen LK, Heegaard CW, Rasmussen JT, Benfeldt C, Fedosov SN.

Biochemistry. 1998 Sep 8;37(36):12631-9.

PMID:
9730836
47.

[On X-ray diagnosis of some inferior vena cava developmental malformations].

Vishniakova MV, Drozdov IV, Demidov IN, Fedosov SN, Martakov MA.

Vestn Rentgenol Radiol. 1998 Jan-Feb;(1):40-3. Russian. No abstract available.

PMID:
9584653
48.

[Angiographic diagnosis of congenital coronary aneurysms].

Frolov AN, Demidov IN, Fedosov SN.

Vestn Rentgenol Radiol. 1996 Sep-Oct;(5):35-6. Russian. No abstract available.

PMID:
8967008
49.

Transcobalamin from cow milk: isolation and physico-chemical properties.

Fedosov SN, Petersen TE, Nexø E.

Biochim Biophys Acta. 1996 Jan 4;1292(1):113-9.

PMID:
8547333
50.

Binding of cobalamin and cobinamide to transcobalamin from bovine milk.

Fedosov SN, Petersen TE, Nexø E.

Biochemistry. 1995 Dec 12;34(49):16082-7.

PMID:
8519765

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