搜索结果: 1-6 共查到“生物学 vitamin B-12”相关记录6条 . 查询时间(0.23 秒)
Vitamin B-12–fortified toothpaste improves vitamin status in vegans: a 12-wk randomized placebo-controlled study
deficiency holotranscobalamin methylmalonic acid supplementation,
2018/11/13
Background: The oral application of vitamin B-12 may prevent its deficiency if the vitamin is absorbed via the mucosal barrier.
Vitamin B-12 status and neurologic function in older people: a cross-sectional analysis of baseline trial data from the Older People and Enhanced Neurological Function (OPEN) study
neurologic older people vitamin B-12 peripheral conduction central nerve conduction
2018/12/14
Background: Aging is associated with a progressive decline in vitamin B-12 status. Overt vitamin B-12 deficiency causes neurologic disturbances in peripheral and central motor and sensory systems, but...
The important study by Brito et al. (1) suggests that a single high dose of vitamin B-12 can improve peripheral sensory nerve function in asymptomatic elderly subjects with vitamin B-12 deficiency and...
Hippocampus as a mediator of the role of vitamin B-12 in memory
Hippocampus mediator vitamin B-12 memory
2018/11/28
Since the original observations of Addison in the 19th century and more recently those of Lindenbaum et al. (1), it has been known that pernicious anemia may be associated with neurological and cognit...
Vitamin B-12 concentration, memory performance, and hippocampal structure in patients with mild cognitive impairment
episodic memory hippocampus MCI mean diffusivity vitamin B-12
2018/11/28
Background: Low-normal concentrations of vitamin B-12 (VitB12) may be associated with worse cognition. However, previous evidence has been mixed, and the underlying mechanisms remain unclear.
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
folate vitamin B-12 holotranscobalamin methylmalonic acid total homocysteine folic acid fortification nerve conductivity elderly Chile
2018/11/26
Background: It is uncertain whether vitamin B-12 supplementation can improve neurophysiologic function in asymptomatic elderly with low vitamin B-12 status or whether folate status affects responses t...