[Influence of chronic immobilization stress on vitamin status in rats fed different diets].

The influence of a stress factor, widespread in modern conditions, on the vitamin status has not been studied enough. At the same time, the negative stress impact can be aggravated against the background of unhealthy nutrition, which in turn affects the vitamin status of the organism. In this regard, of the research was to evaluate the effect of chronic restrict stress on the vitamin supply in rats fed a diet with adequate and increased content of fat, sugar and cholesterol.

[Influence of multiple insufficiency of vitamin D and B group vitamins, calcium and magnesium in the diet of rats on micronutrient sufficiency and plasma biochemical indicators].

The lack of vitamins D, B group, calcium and magnesium is common for the diet of the Russian population. It has been previously demonstrated that that the elimination of B vitamin deficiency is a necessary condition for the implementation of vitamin D biological functions. of the research was to assess the effect of a combined deficiency of vitamins D and B group, calcium and magnesium in the diet of rats on biomarkers of micronutrient sufficiency and plasma biochemical indicators.

[Vitamin supply of patients with type 2 diabetes mellitus complicated by nephropathy].

Insufficient vitamin content in the diet is a risk factor for the development of various diseases and their progression, and drug therapy can also contribute to the development of a deficiency of these micronutrients. Data on vitamin sufficiency of patients with type 2 diabetes mellitus (T2DM) and diabetic nephropathy (DN) are needed to develop measures to improve it. of the research was to compare vitamin status of patients with T2DM without DN and those with T2DM complicated by nephropathy by assessing vitamin blood level and urinary excretion.

[Efficiency of vitamin D deficit correction depending on rats' supply with B vitamins].

Despite the presence of combined deficiency of vitamins D and group B among the population of Russia, the intake of cholecalciferol is often recommended without correcting the supply with B group vitamins, which are involved in ensuring the biological functions of vitamin D. of the study was to compare the effectiveness of vitamin D deficit correction by replenishing its content in the diet to an adequate level without eliminating the deficit of B vitamins and by restoring vitamin D level in combination with B vitamins. .

[Biological value of fruits and berries of Russian production].

Fruits and berries are the most important sources of a wide range of biologically active substances, including vitamin C, carotenoids, flavonoids, anthocyanins. In order to replenish and update data on the content of food and biologically active substances in the tables of the chemical composition of food products, a study of the content of mono- and disaccharides, dietary fiber was carried out; vitamins C, B1, B2 and E, minerals and trace elements; flavonoids (in terms of rutin), anthocyanins; organic and hydroxycinnamic acids, stilbenoids in various varieties of 16 fruit and berry crops. .

[Biomarkers of vitamin status in obese school children].

Inadequate intake of vitamins, noted in children with obesity, reduces the immune system activity, contributes to the metabolic disorders aggravation and may result in comorbidity. of the work was to study sufficiency with vitamins and carotenoids of children with obesity. Examination of vitamin D, B, C, A, E and β-carotene status in 50 children (male 36.

[Nutrient value of fruit in promising strawberry varieties].

One of the current areas in research of fruit and berry crops is the study of their nutritional value and micronutrient composition. Valuable chemical composition of the strawberry determines a wide spectrum of its utilization not only as fresh fruit, but also as a raw material for food industry. Breeding requirements for contemporary strawberry varieties together with yield, large-fruit, important taste and dietary qualities of fruit provide for higher content of biologic active substances.

[Content of some vitamins in food ration and blood serum of professional athletes].

The aim of the work was a comparative assessment of the vitamin status of athletes specializing in different kinds of sport (bobsleigh, dispersing and pilots, biathlon, bullet shooting) by means of assessment of the content of vitamins in the diet and blood serum. 159 professional athletes of both sexes were examined in the pre-competition period of the sport activity. The average age of the surveyed 92 men was 21.

[Consumption of carbohydratecontaining beverages and their contribution to the total calorie content of the diet].

The article presents data on the frequency of consumption of carbohydrate-containing sweet carbonated drinks by the population of the Russian Federation and their contribution to the overall caloric intake of the diet. Questioning 11 850 people of different ages (from 12 to 60 years) and sex in all eight Federal Districts of Russia has been conducted. The frequency of food consumption has been studied, and in parallel dietary intake has been assessed using 24-hour recall method.

[Vitamin status of adult population of the Russian Federation: 1987-2017].

In a review in order to characterize the dynamics of vitamin status for the period from 1987 to the present, the results of 16 surveys (conducted in 2015-2017) of the sufficiency with vitamins C, A, E, B2 and B6 of adult men and women of working age (about 1200 people) living in different regions of the Russian Federation, were compared with the frequency of vitamin insufficiency among the population in the previous period. The statistically significant improvement in the population's supply with vitamin C in the previous decade continued in 2015-2017. The deficit of this vitamin practically ceased to occur.

[Effect of B-vitamin deficiency on biochemical, immunologic markers and trace element status of rats and mice of various lines].

Biochemical, vitamin, trace element and immunological changes were searched for the combined nutritional deficiency of vitamins B1, B2, B6 on in vivo models in rats and mice. Female rats of Wistar (W) strain and hybrids of the 1st generation of Dark Aguti and Wistar (DA x W) strains, female mice of BALB/c strain and DBCB tetrahybrids were used in experiment. Animals received for 35 days a balanced diet (control) according to AIN-93 or a similar diet with the exception of vitamins B1, B2, B6 (experimental groups).

[Micronutrient status of population of the Russian Federation and possibility of its correction. State of the problem].

Vitamin status of the working population (about 950 subjects) from Moscow region, Samara, Nizhny Novgorod, Arkhangelsk, Yamalo-Nenetsky Avtonomny Okrug has been evaluated in 2015-2016. The lack of vitamin D assessed by means of blood serum level determination was detected in 57.5% of the adults, B vitamins - in 12.

[The study of the association between rs2228570 polymorphism of gene and vitamin D blood serum concentration in the inhabitants of the Russian Arctic].

Genetic factor plays a significant role in nutrient deficiency development, including vitamins, by present time the association between several genetic polymorphisms and vitamin deficiency in the different regions of the world has been established. The aim of this study was to evaluate the possible association between VDR FokI polymorphism and vitamin D sufficiency in the population of the Yamal-Nenets Autonomous District of the Russian Federation. The group of participants included 172 people, among them 133 women and 39 men aged 20 to 75 years old.

[Vitamin status of rural residents, living in Russian Arctic].

The aim of this cross-sectional observational study was to estimate vitamin D, B2, A, E, β-carotene (BC) status in rural residents, living in Russian Arctic (Yamal-Nenets Autonomous Area). 216 healthy adults (166 women, 50 men, 45.4±0.

[Evaluation of vitamin status of workers of oil-processing enterprises (Samara Region) according to the data on vitamin consumption and blood serum level].

Vitamin status of 77 employees of oil refineries (39 men and 38 women aged 22 to 62 years, body mass index - 25.0±4.7 kg/m) has been assessed in autumn.

[Comparative evaluation of vitamin status and biochemical markers of metabolic syndrome on the models of rodents receiving rations with high quotas of different sugars].

Metabolic syndrome (MS) is one of the leading causes of non-infectious pathology among the population of developed countries. It is necessary to have experimental in vivo models of MS for pre-clinical testing of new approaches to its dietary therapy. The purpose of the study was a comparative analysis of functional, biochemical and vitamin markers that characterize the effect of diets with different composition of simple carbohydrates (sugars) on female Wistar rats and female C57Black/6J mice.

[The analysis of domestic and international policy of food fortification with vitamins].

Fortification of food products of mass consumption with vitamins is a modern, most cost-effective, efficient and physiological way to improve the vitamin status of the population. Free or voluntary enrichment on the initiative of producers is used in the industrialized countries at low risk for inadequate population intake of micronutrients. Enrichment of products of mass consumption is almost always mandatory, legislative consolidated, while target enrichment of foods intended for different groups can be both mandatory and voluntary The criteria for the effectiveness of mandatory food fortification are an increase of certain vitamin consumption, reduce of the relative number of people with inadequate intake of certain micronutrients, improvement of micronutrient sufficiency (blood level), enhancement of biomarkers of some alimentar diseases, reduction of the frequency of congenital defects (neural tube defect).

[Sufficiency with water-soluble vitamins and state of bone in pregnant women].

Vitamin status and bone strength have been estimated in 91 pregnant women (29.3 ± 4.6 years old) from Moscow by non-invasive methods.

[Evaluation of sufficiency with vitamins C, B1 and B2 of newborn infants feeding different types of nutrition, by means of urinary excretion determination].

With the help of non-invasive methods the sufficiency with vitamins C, B1 and B2 in 58 newborns (38-40 weeks of gestation) on breastfeeding as well as on mixed or artificial feeding has been evaluated. Urinary excretion and breast content of ascorbic acid (measured by visual titration), thiamin (by thiochrome fluorimetric method) andriboflavin (fluorimetrically by titration with riboflavin-binding protein) was determined on the 3-10th day after birth. 35 infants were exclusively breastfed.

[The vitamin status of pregnant women in Moscow: effect of multivitamin-mineral supplements].

Examination of the vitamin status of 102 pregnant women (19-41 years old) from Moscow (gestational age 6-38 weeks) in winter and spring 2015 has been conducted. The lack of vitamin B2 (blood serum level of riboflavin <5 ng/ml), D (25(OH)D level <30 ng/ml) and β-carotene (<20 mg/dL) occurred in 49-66% of pregnant women. The percentage of persons with reduced serum levels of vitamin B6 (<4.

[Vitamin status of citizens from Moscow Region].

Evaluation of vitamin status in healthy individuals (68 men and 70 women) aged from 18 to 60 years (median - 37 years), residents of Moscow and the Moscow region has been performed by means of determination of vitamin C, A, E, B2, B12 and folic acid level in blood serum. The nutrition was investigated by questionnaire method on frequency of food consumption. Both diet of men and women had excessive fat content (41.

[Influence of nanosized amorphous silica on assimilation of vitamins B1, B2 and B6 in rats].

Amorphous silica (SiO2) in the form of nanoparticles (NPs) is widely used as a food additive E551 in many enriched foods and food supplements. The aim of this study was to evaluate the effect of oral administration of SiO2 NPs on assimilation and metabolism of vitamins B1, B2 and B6 in laboratory rats. Amorphous SiO2 «Orisil-300 ®» was used with the size of the primary NPs 20-60 nm according to the electronic, atomic force microscopy and dynamic light scattering.

[Influence of combined vitamin deficiency on unconditioned reflexes and learning in growing rats].

The aim of this study was to investigate the effect of combined deficiency of all vitamins on the manifestation of unconditioned reflex and learning (in response to an electric current) in growing Wistar rats with initial body weight 53.4 ± 1.2 g (45.

[Estimation of vitamin status of moscow student according to data on vitamins intake and their levels in blood].

Supply with vitamins C, A, E and B2 of 61 high school students (38 girls and 23 boys, aged 18–22 years, body mass index – 23.0±0.6 kg/m2) by means of determination of blood plasma concentration of ascorbic acid, retinol and carotenoids, tocopherols and riboflavin has been investigated in the period from May to September.