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Intake of niacin, folate, vitamin B-6, and vitamin B-12 through young adulthood and cognitive function in midlife: the Coronary Artery Risk Development in Young Adults (CARDIA) study
epidemiology cognitive function niacin folate vitamin B-6 vitamin B-12 middle age
2018/11/16
Background: Epidemiologic evidence regarding niacin, folate, vitamin B-6, and vitamin B-12 intake in relation to cognitive function is limited, especially in midlife.
Intake of niacin, folate, vitamin B-6, and vitamin B-12 through young adulthood and cognitive function in midlife: the Coronary Artery Risk Development in Young Adults (CARDIA) study
epidemiology cognitive function niacin folate vitamin B-6 vitamin B-12 middle age
2018/11/20
Background: Epidemiologic evidence regarding niacin, folate, vitamin B-6, and vitamin B-12 intake in relation to cognitive function is limited, especially in midlife.
Hyperhomocysteinemia and vitamin B-12 deficiency in elderly using Title IIIc nutrition services
Vitamin B-12 folate pepsinogen I
2016/12/28
The effect of the folate food fortification program on the prevalence of hyperhomocysteinemia in the older population with coexisting vitamin B-12 deficiency is not known.
Plasma folate, vitamin B-6, and vitamin B-12 and breast cancer risk in BRCA1- and BRCA2-mutation carriers: a prospective study
BRCA BRCA1 BRCA2 breast cancer B vitamins epidemiology folate hereditary breast cancer vitamin B-6 vitamin B-12
2018/12/14
Background: B vitamins [vitamins B-6, B-9 (folate), and B-12] play important roles in nucleotide biosynthesis and biological methylation reactions, aberrancies of which have all been implicated in car...
Folate deficiency was traditionally diagnosed by the presence
of macrocytic anemia and abnormal red blood cell precursors in
the bone marrow in individuals with low folate concentrations.
Similarly...
Cyanocobalamin (vitamin B-12) status in Seventh-day Adventist ministers in Australia
vegan Schillings test recommended daily allowance
2016/6/1
As part of the Adventist Ministers’ Health Study,
a series of cross-sectional surveys conducted in 1992, 1994, and
1997, the serum vitamin B-12 status of 340 Australian Seventh-day
Adventist minist...
Age-related hearing loss, vitamin B-12, and folate in elderly women
hearing impairment presbycusis presbyacusis
2016/5/30
Hearing impairment is 1 of the 4 most prevalent
chronic conditions in the elderly. However, the biological basis
of age-related hearing loss is unknown.
Trends in blood folate and vitamin B-12 concentrations in the United States, 1988–2004
Nutrition survey age sex race ethnic groups National Health and Nutrition Examination Survey
2008/12/17
Background:Monitoring the folate status of US population groups over time has been a public health priority for the past 2 decades, and the focus has been enhanced since the implementation of a folic ...
Folate and vitamin B-12 status in relation to anemia, macrocytosis, and cognitive impairment in older Americans in the age of folic acid fortification
Aging anemia cognition disorders folate fortified food nutrition surveys vitamin B-12 deficiency
2008/12/12
Background:Historic reports on the treatment of pernicious anemia with folic acid suggest that high-level folic acid fortification delays the diagnosis of or exacerbates the effects of vitamin B-12 de...
Folic acid fortification: the good, the bad, and the puzzle of vitamin B-12
Folic acid fortification puzzle vitamin B-12
2008/12/12
We would not be allowed to conduct a clinical trial of a drug without proper monitoring procedures for both expected and unexpected outcomes; however, such a scenario occurred in 1998 when the Food an...
Holo-transcobalamin is an indicator of vitamin B-12 absorption in healthy adults with adequate vitamin B-12 status1,2,3
Transcobalamin holo-transcobalamin holo-TC vitamin B-12 vitamin B-12 absorption
2008/12/11
Background:It has been hypothesized that the response of holo-transcobalamin (holo-TC) to oral vitamin B-12 may be used to assess absorption. To develop a reliable clinical absorption test that uses h...
Vitamin B-12 metabolism in HIV-infected patients in the age of highly active antiretroviral therapy: role of homocysteine in assessing vitamin B-12 status
HIV vitamin B-12 folate
2016/12/29
Before the advent of highly active antiretroviral therapy (HAART), 20% and 10% of HIV-infected patients had low vitamin B-12 and red blood cell folate (RBCF) concentrations, respectively. However, few...
Vitamin B-12 status, particularly holotranscobalamin II and methylmalonic acid concentrations, and hyperhomocysteinemia in vegetarians
Vitamin B-12 homocysteine holotranscobalamin
2017/1/3
The study cohort included 66 lactovegetarians or lactoovovegetarians (LV-LOV group), 29 vegans, and 79 omnivores. Total vitamin B-12, methylmalonic acid, holotranscobalamin II, and total homocysteine ...
Low vitamin B-12 concentrations in patients without anemia: the effect of folic acid fortification of grain
Pernicious anemia vitamin B-12 cobalamin
2017/1/3
In some patients with vitamin B-12 deficiency mistakenly treated with folic acid, anemia resolved but neurologic complications became worse (masking). Fortification of enriched cereal grains with foli...
Screening for vitamin B-12 and folate deficiency in older persons
Screening folate vitamin B-12
2017/1/3
Vitamin B-12 deficiency is usually accompanied by elevated concentrations of serum total homocysteine (tHcy) and methylmalonic acid (MMA). Folate deficiency also results in elevated tHcy. Measurement ...