Voprosy pitaniia最新文献

{"title":"[Comparative analysis of dietary patterns in patients with non-alcoholic fatty liver disease with and without type 2 diabetes mellitus].","authors":"A N Sasunova, A A Goncharov, V A Isakov","doi":"10.33029/0042-8833-2024-93-4-92-103","DOIUrl":"10.33029/0042-8833-2024-93-4-92-103","url":null,"abstract":"<p><p>Non-alcoholic fatty liver disease (NAFLD) is considered to be metabolically determined and alimentary condition, one of the components of metabolic syndrome. Therefore, dietary patterns of patients with different clinical types of the disease are worth to be studied . <b>The aim</b> of the research was to study the dietary patterns in patients with NAFLD and with type 2 diabetes mellitus (T2DM) (group T2DM+) compared to the control group without T2DM (T2DM-). <b>Material and methods</b>. A retrospective analysis of the database (n=316) of patients with NA FLD, formed in the period from 202 1 to 2023, was carried out. A total of 79 sex- and agem atched pairs of T2D+ and T2D- pat ients were selected for the case-control study. Hepatic steatosis and fibrosis stage assessment was performed using vibration-controlled transient elastography (VCTE) with controlled attenuation parameter (CAP). Actual nutrition was evaluated using a semi-quantitative method of assessing consumption frequency during a personal interview. Consumption of 100 grouped food items was assessed. Blood parameters characterizing lipid and carbohydrate metabolism were assessed. <b>Results</b>. Among patients with T2DM+, patients with NASH (24.1 vs 8.9%, p=0.005) and patients with severe liver fibrosis F3-F4 (32.9 vs 10.1%, p<0.0001) were significantly more common. There were no differences between the T2DM+ and T2DM- groups in energy consumption (1969 [1492; 3098] vs 1870 [1380; 2593] kcal/day; p=0.4), proteins (90.5 [71.5; 130.3] vs 81.0 [59.4; 116.0] g/day; p=0.1), fats (83.0 [66.7; 144.9] vs 78.8 [59.2; 116.4] g/day; p=0.3), carbohydrates (220 [156; 312] vs 209 [155; 282] g/day; p=0.9). The study of dietary patterns revealed greater consumption of meat and meat products (1.23 [0.84; 1.73] vs 0.96 [0.71; 1.37] times a day, p=0.03), fish and seafood (0.37 [0.17; 0.89] vs 0.27 [0.13; 0.51] times a day, p=0.01) in T2DM+ group. It was found that in patients with T2DM the intake of calories and the following nutrients from meat and meat products was more, then without: energy (289.6 [174.9; 420.3] vs 191.9 [148.2; 336.5] kcal/day, p=0.006), proteins (25.8 [17.2; 36.5] vs 18.6 [12.6; 29.6] g/day, p=0.008) and fats (18.9 [10.8; 31.4] g/day vs 13.7 [10.3; 23.6] g/day, p=0.01). Similar data was obtained for fish and seafood, with energy (59.7 [28.3; 117.3] vs 45.2 [20.5; 70.1] kcal/day, p=0.03), proteins (8.1 [6.9; 16.8] vs 6.3 [6.7; 10.2] g/day, p=0.02) and fats (3.0 [1.5; 6.4] vs 1.9 [0.9; 3.8] g/day, p=0.01) consumed more in T2DM+ group. <b>Conclusion</b>. In the traditional analysis of actual nutrition in NAFLD patients with and without T2DM, no significant differences were found. However, the structure of the patients' diet differs significantly due to meat and meat products, fish and seafood. The identified differences may indicate the need to change dietary recommendations for patients with T2DM, and may also become the basis for the development of innovative food for special ","PeriodicalId":23652,"journal":{"name":"Voprosy pitaniia","volume":"93 4","pages":"92-103"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Vitamin D and childhood disability: diseases of the musculoskeletal system and connective tissue in the Khanty-Mansi Autonomous Okrug - Ugra].","authors":"V V Krivosheev, I V Kozlovsky, A V Fedorov","doi":"10.33029/0042-8833-2024-93-4-84-91","DOIUrl":"10.33029/0042-8833-2024-93-4-84-91","url":null,"abstract":"<p><p>Vitamin D deficiency is more prevalent among children with musculoskeletal and connective tissue disorders (MSCTD), which plays a significant role in childhood disability, which ranks sixth in the structure of childhood disability in the Russian Federation. <b>The aim</b> of the research was to study of the relationship between the incidence of childhood disability associated with MSCTD and the state of vitamin D status of the population living in the territory of the Khanty-Mansiysk Autonomous Okrug - Ugra. <b>Material and methods</b>. A correlation analysis was carried out between the level of childhood disability (that arose in connection with MSCTD in children aged 0-17 years in the Khanty-Mansi Autonomous Okrug - Ugra in 2021) and the prevalence of severe vitamin D deficit [serum 25(OH)D <10 ng/ml] among the population (12 city and 5 district municipalities), using the INVITRO-Ural LLC database (31 595 anonymized measurements of vitamin D level in Ugra residents). In addition, a correlation analysis was conducted between the total incidence of certain types of MSCTD in the constituent entities of the Russian Federation and the geographical latitude of the administrative center of the subjects of the Federation. <b>Results</b>. In the Khanty-Mansi Autonomous Okrug - Ugra, the frequency of childhood disability resulting from MSCTD is associated with a statistically stable (p=0.01) directly proportional relationship with the prevalence of severe vitamin D deficit in the residents of the municipality territory. In the Russian Federation, the dependence of the general morbidity of MSCTD in children (arthropathy, juvenile arthritis, and damage to the tendon synovial membranes) is very stable (p<0.0001) directly proportional associated with the geographical latitude of the territory. This indicates the impact of reduced levels of ultraviolet radiation and, accordingly, the average blood level of vitamin D in the population high in latitudes, along with other reasons, on human health. <b>Conclusion</b>. Low levels of vitamin D have a negative impact on the activity of MSCTD in children and the associated disability. To justify the recommended daily dose and duration of vitamin D intake, which in some cases can reduce the activity of MSCTD, it is necessary to measure its initial level in the blood serum of patients at risk.</p>","PeriodicalId":23652,"journal":{"name":"Voprosy pitaniia","volume":"93 4","pages":"84-91"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Estimation of gammaaminobutyric acid intake from the human diet].","authors":"V A Sarkisyan, A A Kochetkova, V V Bessonov, V A Isakov, D B Nikityuk","doi":"10.33029/0042-8833-2024-93-1-120-124","DOIUrl":"10.33029/0042-8833-2024-93-1-120-124","url":null,"abstract":"<p><p>Gamma-aminobutyric acid (GABA) is an endogenous bioactive compound with essential properties for the normal functioning of the human nervous system. As a potent neurotransmitter, it plays an important role in modulating synaptic transmission by exerting phasic inhibition of neurons. This and other effects of GABA provide the phenomenon of neural tissue plasticity underlying learning, memory, maturation and repair of neural tissue after damage. It also has a wide range of biological actions, including antihypertensive, anti-diabetic, antioxidant, and anti-inflammatory. In this regard, GABA is increasingly used in the composition of food for special dietary uses and dietary supplements. However, its adequate intake levels have not yet been assessed and its dietary intake has not been characterized. <b>The aim</b> of the review was to estimate the level of GABA intake under balanced consumption of foods, corresponding to rational norms that meet modern requirements of a healthy diet. <b>Material and methods</b>. The existing literature on the problem in recent years was reviewed using the databases RISC, CyberLeninka, Pubmed, and ResearchGate. <b>Results</b>. Based on the analysis of scientific literature, we evaluated the content of GABA in the average daily diet, compiled on the basis of the rational norms of food consumption that meet modern requirements for healthy nutrition (Order of the Ministry of Healthcare of the Russian Federation dated August 19, 2016. No. 614). The balanced diet can provide about 740 mg of GABA per day, mainly due to vegetables (potatoes - 419 mg/day, beet - 49 mg/day, pumpkin - 41 mg/day), fruits (apple - 15 mg/day, grapes - 3.8 mg/day), as well as low-fat dairy products (92 mg/day). <b>Conclusion</b>. The presented data may be useful in assessing the adequacy of enrichment of foods for special dietary uses and dietary supplements with GABA.</p>","PeriodicalId":23652,"journal":{"name":"Voprosy pitaniia","volume":"93 1","pages":"120-124"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140332069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Influence of the rat diet enrichment with oat β-gucans on the assimilation of B group vitamins, mineral elements and lipid metabolism].","authors":"V M Kodentsova, O V Kosheleva, O A Vrzhesinskaya, G V Guseva, V A Zotov, S N Leonenko, N V Zhilinskaya","doi":"10.33029/0042-8833-2024-93-1-72-79","DOIUrl":"10.33029/0042-8833-2024-93-1-72-79","url":null,"abstract":"<p><p>Despite the widespread use of oat β-glucans as ingredient of foods and dietary supplements, there is insufficient data on their effect on the metabolism of vitamins and minerals. <b>The purpose</b> of the study was to evaluate the effect of including oat bran with a high content of β-glucans (β-glucan) in the diet on the absorption of micronutrients and lipid metabolism in growing rats deficient in vitamins D, group B and trace elements (iron, copper, zinc). <b>Material and methods</b>. After the development of micronutrient deficiency (for 23 days), in order to assess the effect of oat bran (5%) with a high content of β-glucans on the correction of the micronutrient status of growing male Wistar rats (with initial body weight of 70.7±0.7 g), the missing micronutrients were introduced in the semi-synthetic diet deficient in vitamins D, group B, iron, copper and zinc within 7 days either along with β-glucan (1.47%) or without its addition. Indicators of micronutrient sufficiency (riboflavin serum concentration, daily urinary excretion of thiamine, riboflavin and 4-pyridoxic acid, measured by fluorometric methods; serum concentration and urinary excretion of calcium, magnesium, iron, zinc, copper, phosphorus, measured by the atomic absorption method or using standard methods on a biochemical analyzer) and the biochemical parameters of blood serum were compared with the parameters of rats adequately provided with all micronutrients throughout the experiment. <b>Results</b>. Replenishment of missing micronutrients in the diet of rats with deficiency in vitamins D and group B, iron, copper and zinc for 7 days led to the elimination of deficiency of vitamins B1, B2 and B6, regardless of the presence of β-glucans in the diet. At the same time, against the background of the presence of β-glucans in the feed, an increase in the absorption of iron was observed, as evidenced by an increase by 1.73 times in iron blood plasma level (р<0.05) and a tendency towards its urinary excretion decrease by 1.60 fold (р<0.10) compared to animals from the control group. Adding oat bran with β-glucans to the feed did not lead to a decrease in blood plasma level of total cholesterol and low-density lipoproteins cholesterol. The levels of high-density lipoprotein cholesterol and triglycerides in rats of all three groups did not have statistically significant differences. <b>Conclusion</b>. The presence of β-glucans in the diet had virtually no effect on the absorption of B vitamins and improved the absorption of iron.</p>","PeriodicalId":23652,"journal":{"name":"Voprosy pitaniia","volume":"93 1","pages":"72-79"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140332072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Comparison of the nutritional structure of patients with non-alcoholic fatty liver disease with the most significant nutrition patterns for health].","authors":"A A Goncharov, V I Pilipenko, V A Isakov","doi":"10.33029/0042-8833-2024-93-5-125-141","DOIUrl":"10.33029/0042-8833-2024-93-5-125-141","url":null,"abstract":"<p><p>Impaired nutritional patterns in patients with non-alcoholic fatty liver disease (NAFLD) are considered to be one of the causes of the disease, with certain types of nutrition having a pronounced protective effect on the incidence of NAFLD. <b>The aim</b> of the study was to compare in detail the nutritional characteristics of Russian patients with NAFLD compared with hepatoprotective dietary patterns (Mediterranean, vegetarian diet, DASH diet). <b>Material and methods</b>. As the research material, data from the examination of 613 patients of the Federal Research Centre of Nutrition, Biotechnology and Food Safety, obtained in the period from 2021 to 2023, were used. The assessment of the stage of liver steatosis and fibrosis was carried out using vibration-controlled transient elastography. The patients were divided into 2 groups: the NAFLD group (n=367) and the control group (n=205), and pairs (n=77) of these groups were formed by gender, age and BMI. Nutrition was assessed using a semi-quantitative method of analyzing food consumption over the previous 1 month. Consumption of food groups by the studied groups was compared with intake in dietary patterns associated with reduced risk of NAFLD. <b>Results</b>. Analysis of the consumption of food groups in the diets of patients with NAFLD along with patients from the control group showed that their intake differed from the recommended levels of consumption according to the healthy eating pyramid and protective dietary patterns for NAFLD with lower consumption of milk and dairy products (Me=0.8-1.1 vs 1.8-4.2 cups/day), legumes (Me=0.16-1.19 vs 1.5-7.5 cups/day), vegetable oils [Me=7.0 g/day in patients with NAFLD and Me=5.0 g/day in patients from the control group (p=0.04) vs 24.0-40.0 g/day], fish and seafood (Me=6.2-6.6 vs 6.3-17.6 ounces/week), vegetables (Me=1.9-2.0 vs 2.5-4.0 cups/day), nuts and seeds (Me=3.5 vs 4.5-11.1 ounces/day), excessive consumption of products from the «meat, poultry, eggs» group (Me=3.0-4.1 vs 0.4-3.6 ounces/day), and corresponded to these recommendations in terms of the consumption of fruit and cereals (at the expense of white brea d and bakery products). <b>Conclusion</b>. Patients with NAFLD need to change the structure of habitual nutrition, including through the introduction of foods for special dietary uses capable of replenishing the missing nutrients in their diet, which have a protective effect against NAFLD.</p>","PeriodicalId":23652,"journal":{"name":"Voprosy pitaniia","volume":"93 5","pages":"125-141"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142677102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Assessment of tolerance of a new product (gluten-free grain snack) in children with food allergy to gluten].","authors":"V A Revyakina, E M Serba, V A Mukhortykh, I A Larkova, E D Kuvshinova, V G Dolzhenkova, A Yu Sharikov, M V Amelyakina","doi":"10.33029/0042-8833-2024-93-4-104-111","DOIUrl":"10.33029/0042-8833-2024-93-4-104-111","url":null,"abstract":"<p><p>The development of a technological scheme for the production of cereal snacks based on the extrusion process with preliminary enzymatic treatment of wheat flour and the use of hydrolysate as a partial replacement for gluten-free raw materials is an urgent task. The use of gluten-free cereal snacks in the diet opens up new possibilities for dietary therapy in patients suffering from various manifestations of food allergy to gluten, making their diet more diverse and meeting their individual needs. <b>The purpose</b> of the research was to clinically evaluate the tolerance of gluten-free cereal snacks in children with PA to gluten. <b>Material and methods</b>. The study included 21 patients (male and female) aged 3 to 17 years with a diagnosed food allergy, including gluten. All children received gluten-free cereal snacks according to their age: children from 3 to 7 years old (n=11) received 50 g (176 kcal) daily, and children aged 8 to 17 years old (n=10) received 100 g (352 kcal) daily for 14 days, in addition to a non-specific hypoallergenic diet excluding highly allergenic foods. On the first day of the study, the patients or one of their parents evaluated the organoleptic properties of the presented product (taste, color, smell) using a 5-point scale (1 - very bad, 5 - excellent), according to a specially designed questionnaire. The assessment of clinical symptoms over time related to skin, gastrointestinal tract, and nervous system was conducted using a second questionnaire, where parents kept a daily «observation log» reflecting the child's well-being and condition, as well as adverse events associated with taking the product. Clinical safety parameters were assessed based on the dynamics of complete blood count and blood immunological parameters (total IgE, specific IgE, and IgG4 antibodies to the studied allergens) at the beginning and end of the consumption period. <b>Results</b>. Daily examinations and patient questionnaires revealed no adverse reactions to the product. No significant differences in body weight were observed at the end of the study (p>0.05). In the results of clinical and immunological blood analysis before and after consuming gluten-free cereal snacks, no significant deviations were observed in the form of an increase in eosinophil count, total IgE, allergen-specific IgE and IgG4 antibodies in peripheral blood. This suggests a favorable clinical safety profile of the proposed product. <b>Conclusion</b>. The study found that consumption of the new product (gluten-free cereal snacks) was well-tolerated by children aged 3 to 17 years with various manifestations of food allergy: no adverse effects of the product or exacerbations of the underlying disease were observed during the 14-day period of gluten-free cereal snack consumption. Therefore, the studied gluten-free cereal snacks can be recommended for children aged 3 to 17 years with various manifestations of gluten FA, in combination with a gluten free diet.</p>","PeriodicalId":23652,"journal":{"name":"Voprosy pitaniia","volume":"93 4","pages":"104-111"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Analysis of the influence of enzyme preparations produced using technological microorganisms on the microbiome and cellular immunity of rats].","authors":"O V Bagryantseva, Z G Gureu, I V Gmoshinski, S A Sheveleva, Yu M Markova, V A Zotov, E N Trushina, A A Shumakova, I E Sokolov, A I Kolobanov, E V Elizarova, S A Khotimchenko","doi":"10.33029/0042-8833-2024-93-5-73-84","DOIUrl":"10.33029/0042-8833-2024-93-5-73-84","url":null,"abstract":"&lt;p&gt;&lt;p&gt;The observed increase in the production of enzyme preparations (EP) using mutant and genetically modified microorganisms makes it necessary to assess their risks to consumer health. However, at present, their possible influence on the microbiome, immune status of the macroorganism has not been sufficiently studied. &lt;b&gt;The purpose&lt;/b&gt; of the research was to assess the effect of two EP - the complex of hydrolases with proteolytic and nuclease activity from the Aspergillus oryzae RCAM 01134 mutant strain (EP1) and the neutral protease - bacillolysin and serine protease from the Bacillus subtilis-96 (VKM B-3499D) mutant strain (FP2) on the intestine microbiome and cellular immunity indices of the experimental animals. &lt;b&gt;Material and methods&lt;/b&gt;. The experiment on the subacute toxicity of EP1 and EP2 was carried out for 30 days using Wistar rats (7 groups of 10 males each). EP was administered to animals intragastrically in doses 0 (control - saline solution); 1, 10 and 100 mg/kg body weight per day. The composition of the cecum microbiocenosis was studied by inoculating tenfold dilutions of the cecum contents on the differential diagnostic media. The quantitative content of short-chain fatty acids (SCFA - acetic, propionic, isobutyric, butyric, isovaleric, valerianic acids) in the colon contents was determined by highperformance gas chromatography. The expression of T- and B-lymphocyte and NK-cell receptors (CD45RА&lt;sup&gt;+&lt;/sup&gt;, CD3&lt;sup&gt;+&lt;/sup&gt;, CD161&lt;sup&gt;+&lt;/sup&gt;, CD3&lt;sup&gt;+&lt;/sup&gt;CD4&lt;sup&gt;+&lt;/sup&gt;, CD3&lt;sup&gt;+&lt;/sup&gt;CD8&lt;sup&gt;+&lt;/sup&gt;) in rat peripheral blood was determined using an FC-500 flow cytometer. &lt;b&gt;Results&lt;/b&gt;. The data obtained as a result of the microbiocenosis studies of the cecum contents indicate that EP1 and EP2 administration had a reliable effect on the quantitative and qualitative composition of aerobic microorganisms, including opportunistic microorganisms, as well as it lead to a weak increase in the number of bifidobacteria and lactobacilli. The development of an inflammatory process in animals of all experimental groups have been caused by the changes in the qualitative and quantitative composition of various groups of microorganisms in the cecum contents, SCFA level in the faeces and indicators of cellular immunity under intragastric administration of FP1 and FP2 for 30 days. &lt;b&gt;Conclusion&lt;/b&gt;. The revealed difference in the composition of the cecum microbiocenosis, SCFAs produced by the intestinal microflora, and the cellular immunity indices of the experimental animals under EP1 and EP2 administration, in our opinion, is due to the spectrum of metabolites produced by the intestinal microflora, as well as strains of Aspergillus oryzae RCAM 01134 and Bacillus subtilis-96 (VKM B-3499D). The features of the relationship between the spectrum of SCFAs produced by the intestinal microflora, their quantity and the percentage of T- and B-lymphocytes in the blood of rats indicate different mechanisms of the influence of EP1 and EP2 on th","PeriodicalId":23652,"journal":{"name":"Voprosy pitaniia","volume":"93 5","pages":"73-84"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142677065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Analysis of vitamin A and thyroid blood levels in the indigenous and local Caucasian population of the Arctic].","authors":"A E Elfimova, E V Tipisova, F A Bichkaeva, V A Alikina, O S Vlasova, T B Gretskaya","doi":"10.33029/0042-8833-2024-93-5-14-24","DOIUrl":"10.33029/0042-8833-2024-93-5-14-24","url":null,"abstract":"&lt;p&gt;&lt;p&gt;Previously, differences in the thyroid profile of Arctic residents were shown depending on the vitamin A blood level. However, dietary habits and metabolism peculiarities in the aboriginal and Caucasian representatives of the North population may be the cause of different retinol supply and therefore be one of the reasons for changes in their thyroid activity. &lt;b&gt;The purpose&lt;/b&gt; of the research was to assess vitamin A and thyroid blood levels in the aboriginal and local Caucasian population representatives of the Russian Arctic territories. &lt;b&gt;Material and methods&lt;/b&gt;. In the single-center observational cross-sectional study, apparently healthy residents of villages in the Arkhangelsk region were examined (n=281): 145 representatives of the local Caucasian population and 136 representatives of the aboriginal population, with the proportion of tundra nomadic aborigines at 34%, village aborigines at 66%. Vitamin A blood serum level was determined by the fluorometric method, and the thyroid content [thyroid stimulating hormone (TSH), thyroxine (T4), triiodothyronine (T3), free T4, free T3] was determined by enzyme immunoassay. The integral thyroid index (ITI) as well as the index of peripheral conversion of iodothyronine (IPC) total and free fractions were calculated. &lt;b&gt;Results&lt;/b&gt;. The level of retinol in the indigenous population of the Arctic was lower than that in the local Caucasian population (1.84 [1.26; 2.56] versus 2.10 [1.70; 2.42] μmol/L, p=0.014). However, its deficiency was found only in village aborigines (20.5% of women and 11.8% of men). At the same time, they have the maximum tension of the pituitarythyroid system: lower level of free T3 and free fractions' IPC than in the nomadic and Caucasian population, and TSH levels were higher than in the Caucasian population. Increased vitamin A levels prevailed among the nomadic population: in 60.7% of men and 11% of women retinol level exceeded the norm. At the same time, they have increased metabolic activity of thyroid hormones: higher levels of free T3 and free fractions' IPC compared with sedentary aboriginal population. No pronounced features of the thyroid profile were found in local Caucasians at normal blood concentrations of vitamin A. &lt;b&gt;Conclusion&lt;/b&gt;. The lowest retinol levels are observed in settled aborigines (especially young women) living in villages and experiencing the greatest transformation of traditional lifestyle and nutrition, which is combined with higher TSH blood levels and decreased thyroid hormone metabolism. The highest retinol levels were found in nomadic aborigines (especially young men), which increase the reserves of antioxidant defense and support high metabolism of thyroid hormones. However, the high percentage of people with excessive vitamin A blood level in this group raises concerns due to the possible negative consequences. Therefore, it is necessary to monitor fat soluble vitamin levels among Arctic aboriginal populations. Social support measu","PeriodicalId":23652,"journal":{"name":"Voprosy pitaniia","volume":"93 5","pages":"14-24"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142677068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Assessment of the radiation risk to health caused by the intake of Cs-137 and Sr-90 radionuclides from food in the able-bodied population of the Samara region].","authors":"D O Gorbachev","doi":"10.33029/0042-8833-2024-93-4-58-64","DOIUrl":"10.33029/0042-8833-2024-93-4-58-64","url":null,"abstract":"<p><p>Monitoring of the content of technogenic radionuclides (Cs-137 and Sr-90) in foods is one of the key areas in ensuring radiation safety of the population, taking into account the current radiation situation. The greatest risk to health is food produced or imported from the territories that have been subjected to man-made radiation accidents. <b>The purpose</b> of the research was to assess the radiation risk caused by oral intake of radionuclides based on the study of the actual nutrition of the adult population and contamination of food with Cs-137 and Sr-90 radionuclides. <b>Material and methods</b>. The specific activity of Cs-137 and Sr-90 radionuclides (median and 90 percentile) was assessed by gamma spectrometric method in 1235 samples of food produced in the Samara region and imported from outside. Data on the actual nutrition of 894 respondents aged 18 to 68 years (in the autumn-winter period) were obtained by the 24-hour dietary recall using the automated software package Nutri-prof (version 2.9). Based on the data obtained, effective annual doses of internal radiation were calculated, information was obtained on the risks of malignant neoplasms, including in the long-term period under various scenarios of internal radiation. <b>Results</b>. Radiometric studies of food samples did not reveal deviations from hygienic standards. The highest median values of Cs-137 specific activity were observed in samples of forest mushrooms (1.23 Bq/kg), wild berries (0.97 Bq/kg), fish and fish products (0.96 Bq/kg). The highest median values of Sr-90 specific activity were also observed in samples of forest mushrooms (3.86 Bq/kg), fish and fish products (2.71 Bq/kg). The radiation risk under various scenarios of Cs-137 intake was regarded as «negligible», while the risk was regarded as «small» when consuming food contaminated with Sr-90. The number of additional cases of malignant neoplasms at the admission of Cs-137 in the median values of specific activity is 0.38 per year, at maximum values - 0.57 per year, at the admission of Sr-90 - 2.04 per year and 3.30 cases per year, respectively. <b>Conclusion</b>. The implementation of radiation monitoring of food, especially those imported from areas of high radiation risk, is a necessary condition for ensuring radiation safety of the population. It is also necessary to take into account the stochastic effect of the influence of small doses of internal exposure on the organism when consuming food, which make a significant contribution to the formation of the dose of internal radiation.</p>","PeriodicalId":23652,"journal":{"name":"Voprosy pitaniia","volume":"93 4","pages":"58-64"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Vitamins K₁ and K₂ in children's nutrition].","authors":"V M Kodentsova, D V Risnik","doi":"10.33029/0042-8833-2024-93-5-6-13","DOIUrl":"10.33029/0042-8833-2024-93-5-6-13","url":null,"abstract":"<p><p>Vitamin K comes in several forms in foods. Phylloquinone (vitamin K1) is found in plant foods. Menaquinones (vitamin K2) are a class of vitamin K compounds found in animal products and fermented foods. <b>The purpose</b> of the research was to characterize the role of vitamins K1 and K2 in the nutrition of children and to assess vitamin K status in children. <b>Material and methods</b>. The literature review in recent years was carried out using the RSCI, Pubmed databases, as well as Google Scholar system using the keywords: «vitamin K», «vitamin K1», «vitamin K2», «menaquinone» and «phylloquinone» in combination with «children», or «breast milk». <b>Results</b>. Vitamins K1 and K2 are interchangeable in relation to the formation of blood coagulation factors, but the effectiveness of vitamin K2 is much higher in the posttranslational modification of extrahepatic proteins that provide antioxidant, epigenetic effects. Current vitamin K intake recommendations only apply to phylloquinone. Breastfed children are at risk for vitamin K deficiency, because breast milk content of vitamin K, mainly in the form of phylloquinone, is low. In adapted milk formulas for infant feeding, the content of vitamin K1 is significantly higher than in breast milk. To provide infants with vitamin K2, it is extremely important to promptly introduce complementary foods into the diet that are sources of menaquinones. Specifically formulated for the nutritional needs of young children products that contain naturally formed during milk fermentation vitamin K2, deserve special attention. <b>Conclusion</b>. Considering the important role of vitamin K in the prevention of the skeletal system and cardiovascular diseases, it is necessary to increase its consumption by including fermented foods naturally containing menaquinones (MK-7) in the diet.</p>","PeriodicalId":23652,"journal":{"name":"Voprosy pitaniia","volume":"93 5","pages":"6-13"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142677152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}