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Items: 1 to 20 of 150

1.

Folate-vitamin B-12 interaction in relation to cognitive impairment, anemia, and biochemical indicators of vitamin B-12 deficiency.

Selhub J, Morris MS, Jacques PF, Rosenberg IH.

Am J Clin Nutr. 2009 Feb;89(2):702S-6S. doi: 10.3945/ajcn.2008.26947C. Epub 2009 Jan 13. Erratum in: Am J Clin Nutr. 2009 Jun;89(6):1951.

2.
3.

Interactions between plasma concentrations of folate and markers of vitamin B(12) status with cognitive performance in elderly people not exposed to folic acid fortification: the Hordaland Health Study.

Doets EL, Ueland PM, Tell GS, Vollset SE, Nygård OK, Van't Veer P, de Groot LC, Nurk E, Refsum H, Smith AD, Eussen SJ.

Br J Nutr. 2014 Mar 28;111(6):1085-95. doi: 10.1017/S000711451300336X. Epub 2013 Nov 11.

PMID:
24229560
4.

Circulating unmetabolized folic acid and 5-methyltetrahydrofolate in relation to anemia, macrocytosis, and cognitive test performance in American seniors.

Morris MS, Jacques PF, Rosenberg IH, Selhub J.

Am J Clin Nutr. 2010 Jun;91(6):1733-44. doi: 10.3945/ajcn.2009.28671. Epub 2010 Mar 31. Erratum in: Am J Clin Nutr. 2010 Oct;92(4):1002.

5.

In vitamin B12 deficiency, higher serum folate is associated with increased total homocysteine and methylmalonic acid concentrations.

Selhub J, Morris MS, Jacques PF.

Proc Natl Acad Sci U S A. 2007 Dec 11;104(50):19995-20000. Epub 2007 Dec 4.

6.
7.

Folate and vitamin B12 status in relation to cognitive impairment and anaemia in the setting of voluntary fortification in the UK.

Clarke R, Sherliker P, Hin H, Molloy AM, Nexo E, Ueland PM, Emmens K, Scott JM, Evans JG.

Br J Nutr. 2008 Nov;100(5):1054-9. doi: 10.1017/S0007114508958001. Epub 2008 Mar 17.

PMID:
18341758
8.

Folate, vitamin B12 and homocysteine status in women of childbearing age: baseline data of folic acid wheat flour fortification in Iran.

Abdollahi Z, Elmadfa I, Djazayeri A, Sadeghian S, Freisling H, Mazandarani FS, Mohamed K.

Ann Nutr Metab. 2008;53(2):143-50. doi: 10.1159/000170890. Epub 2008 Nov 10.

PMID:
18997463
9.

Metabolic evidence of vitamin B-12 deficiency, including high homocysteine and methylmalonic acid and low holotranscobalamin, is more pronounced in older adults with elevated plasma folate.

Miller JW, Garrod MG, Allen LH, Haan MN, Green R.

Am J Clin Nutr. 2009 Dec;90(6):1586-92. doi: 10.3945/ajcn.2009.27514. Epub 2009 Sep 2.

10.

Vitamin supplementation and other variables affecting serum homocysteine and methylmalonic acid concentrations in elderly men and women.

Koehler KM, Romero LJ, Stauber PM, Pareo-Tubbeh SL, Liang HC, Baumgartner RN, Garry PJ, Allen RH, Stabler SP.

J Am Coll Nutr. 1996 Aug;15(4):364-76.

PMID:
8829092
11.
12.

Screening for vitamin B-12 and folate deficiency in older persons.

Clarke R, Refsum H, Birks J, Evans JG, Johnston C, Sherliker P, Ueland PM, Schneede J, McPartlin J, Nexo E, Scott JM.

Am J Clin Nutr. 2003 May;77(5):1241-7.

13.

Vitamin B-12 and homocysteine status in a folate-replete population: results from the Canadian Health Measures Survey.

MacFarlane AJ, Greene-Finestone LS, Shi Y.

Am J Clin Nutr. 2011 Oct;94(4):1079-87. doi: 10.3945/ajcn.111.020230. Epub 2011 Sep 7.

14.

Folic acid fortification: why not vitamin B12 also?

Selhub J, Paul L.

Biofactors. 2011 Jul-Aug;37(4):269-71. doi: 10.1002/biof.173. Epub 2011 Jun 14. Review.

PMID:
21674649
15.

Functional vitamin B12 deficiency and determination of holotranscobalamin in populations at risk.

Herrmann W, Obeid R, Schorr H, Geisel J.

Clin Chem Lab Med. 2003 Nov;41(11):1478-88.

PMID:
14656029
17.

Role of homocysteine, cystathionine and methylmalonic acid measurement for diagnosis of vitamin deficiency in high-aged subjects.

Herrmann W, Schorr H, Bodis M, Knapp JP, Müller A, Stein G, Geisel J.

Eur J Clin Invest. 2000 Dec;30(12):1083-9.

PMID:
11122323
18.

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.

19.

The Chilean flour folic acid fortification program reduces serum homocysteine levels and masks vitamin B-12 deficiency in elderly people.

Hirsch S, de la Maza P, Barrera G, Gattás V, Petermann M, Bunout D.

J Nutr. 2002 Feb;132(2):289-91.

20.

Elevated serum methylmalonic acid concentrations are common among elderly Americans.

Morris MS, Jacques PF, Rosenberg IH, Selhub J.

J Nutr. 2002 Sep;132(9):2799-803.

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