多功能的"维生素"--负离子

风景秀丽的树林,流水潺潺的山间小溪;或者那波浪翻滚的江河湖海,声势浩大的瀑布,都会使人感到空气格外清新,备觉舒适。这是什么缘故呢原来这些地方空气离子化程度高,负离子数量多空气里的负离子又叫负氧离子、阴离子。它对人类健康具有重要意义,人们把它誉为“空气维生素”。在     

Survey of food and vitamin intake responses reported by university students experiencing stress

Students were asked to identify stresses in their lives and the methods they employed to alleviate these stresses. Exercise and consumption of foods were the most commonly used methods to alleviate stress. Carbohydrates were the most frequently consumed foods and vitamins were more readily consumed during stress.     

Loss of smell and taste within the scope of vitamin B 12 deficiency

The article deals with the case of a patient who had a partial gastrectomy and developed a vitamin B12 deficiency syndrome with anemia, myelopathy and complete loss of the senses of taste and smell. Regression of the symptoms followed liberal dosing with vitamin B12.     

Evaluation of a possible proximity effect of aspartame and vitamin C on muscular strength

Inconsistent findings of a proximity effect on muscular strength, using a neutral control substance, prompted the current study. Double-blind, counterbalanced assessments of grip strength were performed, with subjects holding either an envelope of ascorbic acid (Vitamin C) or aspartame. No proximity effects were found despite the use of two substances believed by some applied kinesiologists to yield positive and negative results, respectively.     

The effects of a vitamin supplement on the pica of a child with severe mental retardation

The effects of a common multiple vitamin on the pica of a child with severe mental retardation and anemia were evaluated. A BAB design revealed that pica was decreased by the vitamin. The results suggest that pica can be effectively treated by implementation of a simple nutritional or biological intervention. Further research investigating the generality of this finding and the effects of combining biological and behavioral interventions are discussed.     

Trace administration of vitamin E can retrieve and prevent UV-irradiation- and metal exposure-induced memory deficits in nematode Caenorhabditis elegans

Vitamin E (α-tocopherol), a lipid-soluble anti-oxidant, prevents the uncontrolled propagation of lipid peroxidation by free radicals. Nevertheless, there is weak or no evidence of a protective effect of previous vitamin E intake on cognitive function in humans. In the present study, we explored the thermosensation model to investigate the possible effects of vitamin E administration on memory behaviors in Caenorhabditis elegans. Administration of 100 and 200 μg/mL of vitamin E had no significant effects on the memory for different time intervals, whereas relatively high concentration (400 μg/mL) of vitamin E exposure shortened the extinction period of the association paradigm (food at 20 °C). Following the UV-irradiation, post-treatment with 200 μg/mL of vitamin E not only retrieved the UV-irradiation-induced memory deficits, but also enhanced the memory functions in UV-irradiating animals. Post-treatment with trace vitamin E could also ameliorate the memory deficits in metal (Al or Pb) exposed worms. In addition, pre-treatment with 200 μg/mL of vitamin E could effectively prevent the occurrence of memory deficits induced by metal exposure and UV-irradiation. Therefore, the close association may exist between trace dietary vitamin E intake and memory behaviors, and a specific response mechanism may be activated after the administration of vitamin E in stress-exposed animals. Moreover, treatment with 200 μg/mL of vitamin E could restore the memory deficits formed in the ncs-1 mutant worms, suggesting that exogenous treatment with trace vitamin E can largely mimic the function of NCS-1 in regulating the memory for thermosensation.     

Tryptophan metabolism research in oligophrenic children. 4.: Activity and possibility of activating hepatic kynureninase after vitamin B6 treatment]

In 8 selected test persons of the 3rd series of experiments who were showing signs of pathological kynureninase activity, hepatic kynureninase was again established after 3 week's treatment with large doses of vitamin B6. The enormous in-vivo activation of the kynureninasis established goes to prove that apoenzyme synthesis may be stimulated by pyridoxine. On the basis of these results and the relative frequency of disorders dependent on B6, the question arises whether children from endangered families should not be given prophylactic vitamin B6 treatment from birth.     

Linking vitamin D status,executive functioning and self‐perceived mental health in adolescents through multivariate analysis: A randomized double‐blind placebo control trial

The aim of the present randomized double‐blind placebo control trial was to investigate if vitamin D supplementation had an effect on vitamin D status, executive functioning and self‐perceived mental health in a group of Norwegian adolescents during winter time. Fifty adolescents were randomly assigned into an intervention group (vitamin D pearls) or a control group (placebo pearls). Before (pre‐test in December/January) and after (post‐test in April/May) the intervention period the participants were exposed to a test procedure, consisting of blood draw, completion of cognitive tests (Tower of Hanoi and Tower of London), and the Youth Self‐report version of the Child Behavior Checklist. Multivariate data analysis showed that participants with low vitamin D status scored worse on the Tower of London tests and the more difficult sub‐tasks on the Tower of Hanoi tests. They also had a tendency to report higher frequency of externalizing behavior problems and attention deficit. At pre‐test, the overall mean vitamin D status measured as 25‐hydroxy vitamin D was 42 nmol/L, defining deficiency (Intervention group = 44 nmol/L, Control group = 39 nmol/L). However, vitamin D supplementation caused a significant increase in vitamin D status resulting in a sufficient level in the Intervention group at post‐test (mean 62 nmol/L). The results also revealed that the intervention group improved their performance on the most demanding sub‐tasks on the ToH. Overall, the study indicates that vitamin D status in adolescents may be important for both executive functioning and mental health.     

人类抗坏血酸(维生素C)遗传缺陷学说暨人类第一病因学说(上)——五个关于维生素C的重大发现及其对人类健康的深远意义

通过对维生素C发现历程的分析,提出并阐述了人类抗坏血酸遗传缺陷学说.由于人类普遍存在这一遗传缺陷,因此进而提出,抗坏血酸遗传缺陷是人类全部遗传缺陷中第一位的遗传缺陷,也是人类全部病因中第一位的病因.