Conclusion Both the serum folic acid and vitamin B12 may be independent risk factors of cerebral infarction.

Development of radiolabelled vitamin B12 and derivatives on oncology and tumor therapy

放射性标记的维生素B12及其衍生物在肿瘤诊治中的应用进展

Oral administration of folic acid and vitamin B12 can lower plasma total homocysteine levels.

口服叶酸和维生素B12可以降低血浆中总高半胱氨酸的水平。

Vitamin B12 is thought to influence nuclear structure by affecting folate metabolism.

据认为维生素B12是通过干扰叶酸盐代谢来影响核的结构。

This is because eggs are full of vitamin B12 as well as lecithin.

这是因为鸡蛋富含维生素B12和卵磷脂。

The results showed that a suitable amount of vitamin B12 may evidently promote the larval growth and increase its survival rate.

结果表明，适量的维生素B（12）可明显地促进仔虾的生长，并可提高仔虾的存活率。

All818 participants also had normal serum vitamin B12 at baseline.

总的818名参与者也有正常的血清维生素B12。

Folate works with vitamin B12 to help form red blood cells.

叶酸与维他命B12一起帮助机体形成红细胞。

Serum folic acid and vitamin B12 levels were examined for all the subjects.

测定血清叶酸和维生素B12浓度。

Common dietary sources of vitamin B12 include fish, poultry, and meat products.

常见的维生素B12饮食来源包括鱼、家禽和肉制品。

The deviations of serum folic acid and vitamin B12 concentration were significant among the three groups ( P0.05).

三组研究对象血清维生素B12浓度和血清叶酸浓度的比较，两两之间差异均有统计学意义（P0.05）。

Vitamin B12 was selected as a model drug and the in vitro release properties was studied.

以维生素B12为模型药物，研究药物的释放性质。

Evidence is mounting that levels of vitamin B12 may be connected to the risk of developing Alzheimer's disease.

越来越多的证据剖明维生素B12水平可能与发生老岁首呆症的风险有关。

Study on serum folic acid and vitamin B12 levels of patients with depression

抑郁症患者血清叶酸和维生素B12浓度研究

Vitamin B12 injection and verapamil injection can promote further emulsion of emulsified silicone oil.

维生素B12注射液和维拉帕米注射液具有促进乳化硅油进一步乳化的作用。

Vitamin B12 is also called cobalamin because it contains the metal cobalt.

维生素B12也被称为维生素B12，因为它含有的金属钴。

Milk powder and formula food for infant and young children& Determination of vitamin B12 activity ( microbiological method)

GB/T5413.14-1997婴幼儿配方食品和乳粉维生素B12活性测定（微生物法）

Conclusion: Significant regional and gender differences in plasma vitamin B12 concentration were observed in Chinese adults.

结论：我国成年人群血浆维生素B12水平存在明显的地区和性别差异；

Relationship between folacin, vitamin B12 and plasma homocysteine levels in vascular dementia

叶酸、维生素B（12）及血浆同型半胱氨酸水平与血管性痴呆的关系

MAIN OUTCOME MEASURES:① differences of vitamin B12 level in the AD group and the control group.

主要观察指标：①AD组及对照组之间维生素B12水平差异。

The results indicated that vitamin B12 added glucose have a clear antimutagenic effect on the cold waving agent.

结果显示，VB12和葡萄糖对冷烫精的致突变作用有明显的拮抗作用。