Effect of oral vitamin B-12 with or without folic acid on cognitive function in older people with mild vitamin B-12 deficiency: a randomized, placebo-controlled trial

“Mini-mental state”

1975 • 82,784 citations

Studies of interference in serial verbal reactions.

1935 • 17,279 citations

Development and validation of a geriatric depression screening scale: A preliminary report

1982 • 14,099 citations

Mild Cognitive Impairment

1999 • 8,417 citations

Validity of the Trail Making Test as an Indicator of Organic Brain Damage

1958 • 7,146 citations

Current Concepts in Mild Cognitive Impairment

2001 • 4,609 citations

Using SAS PROC MIXED to Fit Multilevel Models, Hierarchical Models, and Individual Growth Models

1998 • 2,681 citations

Neuropsychiatric Disorders Caused by Cobalamin Deficiency in the Absence of Anemia or Macrocytosis

1988 • 1,306 citations

Depression and memory impairment: A meta-analysis of the association, its pattern, and specificity.

1995 • 850 citations

Neurologic Aspects of Cobalamin Deficiency

1991 • 761 citations

Chemistry and biochemistry of B12

1999 • 717 citations

Guide to using the Coloured Progressive Matrices.

1958 • 674 citations

VITAMIN B₁₂ DEFICIENCY IN THE ELDERLY

1999 • 472 citations

B vitamins, homocysteine, and neurocognitive function in the elderly

2000 • 453 citations

Multiple aspects of homocysteine neurotoxicity: Glutamate excitotoxicity, kinase hyperactivation and DNA damage

2002 • 369 citations

The Reversible Dementias: Do They Reverse?

1988 • 351 citations

Stroop interference: Aging effects assessed with the stroop color-word test

1993 • 350 citations

Vitamin B12 and folate deficiency in later life

2003 • 340 citations

Folic acid with or without vitamin B12 for cognition and dementia

2003 • 245 citations

Current concepts in the diagnosis of cobalamin deficiency

1995 • 242 citations

A case-control study on adverse effects: H2 blocker or proton pump inhibitor use and risk of vitamin B12 deficiency in older adults

2004 • 229 citations

Cobalamin, the stomach, and aging

1997 • 226 citations

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

2003 • 225 citations

Oral Cyanocobalamin Supplementation in Older People With Vitamin B12 Deficiency

2005 • 203 citations

Time Dependency of Cognitive Recovery with Cobalamin Replacement: Report or a Pilot Study

1992 • 180 citations

Improvement of cognitive functions after cobalamin/folate supplementation in elderly patients with dementia and elevated plasma homocysteine

2001 • 144 citations

Automated Assay for the Determination of Methylmalonic Acid, Total Homocysteine, and Related Amino Acids in Human Serum or Plasma by Means of Methylchloroformate Derivatization and Gas Chromatography–Mass Spectrometry

2005 • 142 citations

B Vitamins, Cognition, and Aging: A Review

2001 • 136 citations

Direct Assay for Cobalamin Bound to Transcobalamin (Holo-Transcobalamin) in Serum

2002 • 127 citations

Folic acid and reduction of plasma homocysteine concentrations in older adults: a dose-response study

2003 • 124 citations

Vitamin B12 deficiency in dementia and cognitive impairment: the effects of treatment on neuropsychological function

2000 • 119 citations

A Randomized, Double‐Blind, Placebo‐Controlled Study of Oral Vitamin B₁₂ Supplementation in Older Patients with Subnormal or Borderline Serum Vitamin B₁₂ Concentrations

2002 • 117 citations

The 1986 Herman award lecture. Nutrition science as a continually unfolding story: the folate and vitamin B-12 paradigm

1987 • 112 citations

No effect of vitamin B-12 treatment on cognitive function and depression: a randomized placebo controlled study

2003 • 102 citations

Vitamin B<sub>12</sub>-B<sub>6</sub>-Folate Treatment Improves Blood-Brain Barrier Function in Patients with Hyperhomocysteinaemia and Mild Cognitive Impairment

2003 • 97 citations

Dementia and subnormal levels of vitamin B12: Effects of replacement therapy on dementia

1996 • 77 citations

Cobalamin-folate interrelations

1989 • 69 citations

Cobalamin Supplementation Improves Cognitive and Cerebral Function in Older, Cobalamin-Deficient Persons

2001 • 69 citations

Nutrient-dense foods and exercise in frail elderly: effects on B vitamins, homocysteine, methylmalonic acid, and neuropsychological functioning

2001 • 58 citations

Prevalence of vitamin B12 deficiency among demented patients and cognitive recovery with cobalamin replacement.

2002 • 57 citations

Neuropsychology of Vitamin B₁₂ Deficiency in Elderly Dementia Patients and Control Subjects

2005 • 52 citations

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 Deficiency

2002 • 51 citations

Cognitive Impairment in Elderly People

1995 • 50 citations

Neuropsychiatric consequences of cobalamin deficiency.

1991 • 50 citations

Randomized trial of the effect of supplementation on the cognitive function of older people with subnormal cobalamin levels

1998 • 48 citations

Vitamin B₁₂ Deficiency and Dementia

1995 • 43 citations

Review: Cobalamin Deficiency and Mental Impairment in Elderly People

1995 • 29 citations

Cognitive aging and health-related factors

1991 • 17 citations