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Use of a short-term isotope-dilution method for determining the vitamin A status of children
Deuterated vitamin A retinol enrichment total-body vitamin A stores Chinese children stable isotope
2016/12/19
Background: After a dose of labeled vitamin A is given to humans for estimating body stores of vitamin A, blood is customarily drawn at pseudo-equilibration times ranging from 11 to 26 d.Objectiv...
Vitamin A deficiency in a newborn resulting from maternal hypovitaminosis A after biliopancreatic diversion for the treatment of morbid obesity
Vitamin A defi ciency biliopancreatic diversion night blindness malabsorption morbid obesity neonatal nutrition hypovitaminosis A
2016/12/19
Background: Biliopancreatic diversion (BPD) has been advocated for the treatment of morbid obesity. This procedure has the theoretical advantage that patients retain normal eating capacity and lo...
Variability in conversion of β-carotene to vitamin A in men as measured by using a double-tracer study design
Carotene vitamin A activity β-carotene retinol stable isotope tracer men
2016/12/17
Background: The vitamin A activity of β-carotene is variable and surprisingly low in women. The reasons for this are not well understood. The vitamin A activity of β-carotene in men is still unce...
Homocysteine,B vitamin status,and cognitive function in the elderly
Folate vitamin B-12 homocysteine cognition elderly community-based survey Scottish Mental Survey
2016/12/17
Background: Old age is associated with reduced cognitive performance. Nutritional factors may contribute to this association.Objective: We tested associations between cognitive performance a...
Vitamin D deficiency,muscle function,and falls in elderly people
Vitamin D defi ciency muscle function muscle strength injurious falls elderly review
2016/12/17
An inadequate serum vitamin D status is commonly seen in elderly people as the result of various risk factors interacting in this population. Apart from the well-known effects on bone metabolism, this...
High-dose vitamin therapy stimulates variant enzymes with decreased coenzyme binding affinity (increased Km):relevance to genetic disease and polymorphisms
Genetic disease therapeutic vitamin use binding defect favism alcohol intolerance autism migraine headaches single nucleotide polymorphisms enzyme mutations review
2016/12/17
As many as one-third of mutations in a gene result in the corresponding enzyme having an increased Michaelis constant, or Km, (decreased binding affinity) for a coenzyme, resulting in a lower rate of ...
A double-blind,placebo-controlled study of vitamin A and zinc supplementation in persons with tuberculosis in Indonesia:effects on clinical response and nutritional status
Tuberculosis vitamin A zinc sputum smear conversion X-ray lesion area tuberculosis transmission micronutrient supplementation Indonesia
2016/12/17
Background: The results of cross-sectional studies indicate that micronutrient deficiencies are common in patients with tuberculosis. No published data exist on the effect of vitamin A and zinc s...
Effects of vitamin D metabolites on intestinal calcium absorption and bone turnover in elderly women
Elderly women vitamin D calcitriol calcium absorption bone turnover calcium intake 25-hydroxyvitamin D sunlight
2016/12/17
Background: The relative importance of vitamin D metabolites in the regulation of gut calcium absorption has not been well studied in elderly women living in an environment with abundant sunlight...
Effect of transferrin polymorphism on the metabolism of vitamin C in Zimbabwean adults
Africa transferrin phenotype vitamin C L-ascorbic acid iron status scurvy blacks
2016/12/17
Background: Transferrin is the major iron binding protein in human plasma. In black persons, the transferrin CD phenotype has been associated with alterations in certain markers of iron status.Ob...
Short-term supplementation with zinc and vitamin A has no significant effect on the growth of undernourished Bangladeshi children
Zinc vitamin A weight length catch-up growth children supplementation trial Bangladesh
2016/12/17
Background: Several vitamin A supplementation trials have failed to improve the growth rate in children. Addition of zinc to vitamin A might result in enhanced growth.Objective: This study e...
Synergistic effect of zinc and vitamin A on the biochemical indexes of vitamin A nutrition in children
Zinc vitamin A malnutrition supplementation retinol binding protein retinol children
2016/12/17
Background: Zinc deficiency limits the bioavailability of vitamin A. Because zinc and vitamin A deficiency often coexist in malnourished children, simultaneous zinc and vitamin A supplementation ...
Vitamin K supplementation reduces serum concentrations of under--carboxylated osteocalcin in healthy young and elderly adults1
Vitamin K phylloquinone osteocalcin, undercarboxylated osteocalcin ucOC bone turnover osteoporosis
2016/6/8
Background: Subclinical vitamin K insufficiency, manifested
by under--carboxylation of the bone matrix protein osteocalcin,
may be common.
Objective: Our objective was to delineate the prevalence o...
Vitamin D deficiency among older women with and without disability
Vitamin D deficiency calcium bone fractures, disability women aging Baltimore
2016/6/8
Background: Vitamin D deficiency is associated with bone loss
and bone fractures, and the identification of vulnerable populations
is important to clinical practice and public health.
Objective: Th...
Influence of methylenetetrahydrofolate reductase genotype, age, vitamin B-12, and folate status on plasma homocysteine in children
methylenetetrahydrofolate reductase genotype age vitamin B-12
2016/6/8
Background: Several studies have examined the association of
the methylenetetrahydrofolate reductase (MTHFR) genotype
with plasma homocysteine in adults, but few studies have been
performed in chil...
Addressing research questions with national survey data—the relation of vitamin A status to infection and inflammation
national survey data relation of vitamin
2016/6/8
Stephensen and Gildengorin (1) are to be commended for
their creative use of publicly available data from the third
National Health and Nutrition Examination Survey (NHANES
III) to assess the relat...