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Stravovací zvyklosti, pohybová aktivita a životni styl významnou měrou ovlivňuji aktuální zdravotní stav jednotlivce. Vitaminy jsou esenciální faktory stravy ovlivňující růst a vývoj organismu. Příjem vitaminů z potravin v období růstu a vývoje lidského organismu je závislý na aktuálních potřebách. Nedostatečný přívod vitaminů ze stravy, omezení vstřebávám vitaminů ze zažívacího traktu, případně nadměrná potřeba vzniklá v průběhu onemocnění, může být příčinou vzniku relativní hypovitaminózy. Konzumace dostatečného množství pestré stravy s přívodem ovoce a zeleniny zabezpečuji za fyziologických situací adekvátní příjm vitaminů.
Background. Foodstuffs fortified with vitamins and/or minerals are nowadays continually being developed, leading to an increasing diversity of these products being available on the market. This contributes to increased consumption of added nutrients, which can be an effective tool for improving public health. Objectives. To identify and characterise products fortified with vitamins, available on the Warsaw foodstuff market, which can thereby be used as a source of information for the assessment of dietary micronutrient intake. Material and methods. Data were gathered using the information provided on labels from foodstuff products found in 14 Warsaw supermarkets during March to October 2012. Results. There were 588 products found to be fortified with vitamins. The number of vitamins added ranged from one in 193 products to twelve in 14 products. The group of vitamins used for enrichment consisted of: A, D, E, B1, B2, B6, B12, C, niacin, pantothenic acid, folic acid and biotin. Juices, non-alcoholic beverages (29.4%) and cereal products (18.9%) constituted the largest product groups. In addition, fortified vitamins were also significantly present in sweets (15.8%), instant beverages and desserts (13.6%), milk products, fat spreads and soy products. The most frequently added vitamins were: vitamin C (58% products), vitamin B6 (46%) and B12 (45%), whilst the least frequently added was biotin (16%). The highest content of vitamins A and D were seen in fat spreads, whereas the highest levels of B vitamins, vitamin C and E were observed in certain sweets. Conclusions. The wide range of fortified products available can serve to increase vitamin intake in many population groups, especially in children and teenagers. In order that consumers can make informed choices in buying these product types, appropriate education is necessary to raise public awareness of the health issues involved.
The benefits of regular exercise on brain health are undeniable. Long-term exercise increases the production of reactive oxygen species in brain. Therefore, athletes often consume antioxidant supplements to remedy exercise-related damage and fatigue during exercise. The aim of this study is to evaluate the role of ascorbic acid in the effects of different intensities of swimming exercise on the brain susceptibility to experimental epilepsy in rats. Ascorbic acid was administered intraperitoneally (ip) during three different swimming exercise programme for 90 days (15 min, 30 min, 90 min/day). The anticonvulsant activity regarding the frequency of epileptiform activity appeared in the 80 min after 500 units intracortical penicillin injection in 30 min and 90 min/day exercise groups. The administration of ascorbic acid (100 mg/kg, ip) did not alter the anticonvulsant properties seen in the in short-duration (15 min/day) swimming exercise group. The amplitude of epileptiform activity also became significant in the 110 and 120 min after penicillin injection in the moderate (30 min/day) and long duration (60 min/day) groups, respectively. The results of the present study provide electrophysiologic evidence that long-term administration of ascorbic acid causes anticonvulsant activities in the moderate and long-duration swimming exercise. Antioxidant supplementation such as ascorbic acid might be suggested for moderate and long-duration swimming exercise in epilepsy.
Background. The health benefits arising from antioxidant vitamins A, C and E are well recognised and their recommended dietary intake for the general population have been established. However, there is still a need for assessing antioxidant vitamin intake in different population groups. Objective. To assess intake of antioxidant vitamins: A, C, E and β-carotene, and to identify their major sources in the diets of healthy subjects. Material and methods. The study group consisted of 182 adults; both men and women from polish population. Antioxidant vitamin dietary intake was assessed by individual 3-day records. Data were analysed using updated “Polish Food Composition Tables” and ‘Dieta 5’ Software. Results. The average daily intake of antioxidant vitamins was: 1076 mg for vitamin A (including 46% of retinol and 55% of β-carotene), 107 mg for vitamin C and 9 mg for vitamin E. Higher dietary intake of these vitamins was observed in men compared to women. Conclusions. The average intake of antioxidant vitamins was found to be in recommended range, however, significant differences were observed between the lowest and the highest intake. They were related to differences in the consumption of food products recognized as major sources of vitamins A, C, E and β-carotene in study population.
Ostrich meat is a niche product gaining popularity among consumers especially in Europe. Nutrient composition of this meat considering protein, amino acids, fat, cholesterol, fatty acids, minerals and vitamins was henceforth assessed. Ostrich meat is characterized by low intramuscular fat content, a favourable fatty acids profile (PUFA/SFA and n-6/n-3 ratios), a high content of iron and vitamin E and low of Na. Thus, it can be considered as a high quality product of high nutritive and dietetic value. It may thus be a valuable component of human diet.
Background. An adequately balanced daily food rations (DFR) providing the organism with a sufficient amount of energy and nutrients, including minerals, is particularly important in infanthood and early childhood due to the child’s intensive physical, intellectual and motoric development. Objective. The aim of this study was to evaluation the supply of energy, nutrients and vitamins in daily food rations of children fed at home and in nursery schools. Material and Methods. 75 children aged 1-4 years were the research subjects. They were divided into three age subgroups: 12-24-month-olds, 25-36-month-olds and 37-48-month-olds. The daily consumption of energy and vitamins was assessed by means of a 7-day 24-hour nutritional interview made with current note taking and by means of a computer database (Dietetyk 2). Significant differences in the content of energy, nutrients and vitamins in the DFR were investigated using the two-way analysis of variance (Statistica 10.0) at significance level p≤0.05. Results. Neither the children’s sex nor age had influence on the intake of energy and macronutrients. Apart from the amount of energy (68-101.8% RDA) and proteins (183-288% RDA) these values were generally normal, but they had influence on the content of vitamins in the DFR. The DFR was characterised by generally excessive content of vitamins A, B2, B6 and B12. However, in comparison with the RDA the intake was significantly higher in the DFR of the youngest children (12-24 months old). In the group aged 37-48 months there were significantly higher values in the intake of vitamins B2 (317% vs 137% RDA) and B6 (334% vs 147% RDA). On the other hand, in comparison with the RDA, the DFR provided too small amounts of vitamins D, E, folates and vitamin C. The DFR of the youngest children (12-24 months old) contained significantly greater amounts of vitamins: D (41.3% vs 16.2% RDA), E (83.6% vs 63.5% RDA) and C (102.0% vs 48.6% RDA), as compared with the children aged 37-48 months. Only the content of vitamins B1 and PP in the children’s DFR was similar or slightly greater than the RDA. Conclusions. The intake of energy in the DFR of the children aged 1-4 years was generally comparable, but in the children aged 37-48 months it did not satisfy the daily demand. In all the age groups under study the supply of macronutrients satisfied about 100% of the demand, whereas the supply of protein and sucrose was excessive. The children aged 12-24 months consumed more vitamins D, E, B2, PP, B6, B12, C than the children aged 37-48 months. The supply of vitamins D, E, C and folates was too low, whereas the consumption of vitamins: B2, B6 and B12 exceeded the recommended daily intake.
Omówiono rolę homocysteiny w powstawaniu miażdżycy. Inni autorzy opisali zaawansowaną miażdżycę u pacjentów z homocystynurią. Wykazano także, że eksperymentalną miażdżycę można wywołać poprzez karmienie zwierząt homocysteiną i jej pochodnymi. Pirydoksyna jest istotnym składnikiem odżywczym odpowiedzialnym za przemianę homocysteiny do kwasu taurocholowego. Wykazano, że zbyt niskie spożycie pirydoksyny powoduje homocystynurię u ludzi i miażdżycę u zwierząt. Autorzy wykazali zwiększone stężenie homocysteiny w surowicy osób, które przebyły zawał mięśnia sercowego. Hipercholesterolemii towarzyszy szczególnie wysoki poziom homocysteiny we frakcji LDL. In vitro LDL modyfikowane tiolaktonem homocysteiny wykazują szczególne powinowactwo do makrofagów mysich. Pirydoksyna podana razem z niektórymi innymi witaminami powoduje u osób po zawale mięśnia sercowego znaczny spadek poziomu homocysteiny w surowicy. Autorzy wnioskują, że genetycznie uwarunkowane łagodne zaburzenia w metabolizmie homocysteiny mogą w pewnej części populacji przyczyniać się do rozwoju przedwczesnej miażdżycy w przypadku, kiedy dieta jest bogata w metioninę i niedoborowa w pirydoksynę.
This work was addressed to monitor some quality indicators content in commercial powdered infant milk formulas. Furosine, furfural compounds, vitamins (B1, B2, B6, and C) were determined in starting and follow-up infant milk formulas. Contents of furosine, total and free furfural compounds, and B group vitamins were assayed by RP-HPLC with UV detection. The contents of furfural (F), free and total hydroxymethylfurfural (HMF) in the starting infant milks were lower than in the follow-up formulas, whereas free and total F contents were not detectable in the starting formulas. The content of free and total F in follow-up formulas ranged from 0.77 to 1.86 μmol/100g and from 2.70 to 7.08 μmol/100g, respectively. Free and total HMF contents in starting milks ranged from 1.22 to 1.47 μmol/100g and from 5.79 to 8.34 μmol/100g, respectively. The content of free and total HMF in follow-up milks ranged from 2.11 to 8.20 μmol/100g and from 19.86 to 84.89 μmol/100g, respectively. Similarly, the furosine content in starting infant milks (ranged from 53.47 to 57.57 mg/100g) was lower than in the follow-up infant milks (ranging from 70.94 to 96.14 mg/100g). There were higher levels of B group vitamins in the follow-up milk than in the starting infant samples. The content of vitamin C was higher in starting formulas then in the follow-up formulas. These values indicated that there was no significant difference between the results obtained and the labeled levels. These results show that the type and contents of proteins and carbohydrates in commercial powdered infant milk formulas (starting milk, follow-up milk) play an important role in the course of the Maillard reaction.
The present study aimed to investigate the correlation between certain hormone, vitamin and trace element levels and congenital defects in calves with congenital flexural deformity. The study included 15 calves (study group) which were clinically and radiologically diagnosed with congenital flexural deformity and 15 clinically healthy calves (control group). After obtaining the anamnesis of the calves, general physical, clinical and radiological examinations of the extremities were conducted. The calves were diagnosed with congenital flexural deformity when they partially attained or did not attain normal extension angles during passive joint flexion movements. The congenital flexural deformity in the extremity was categorized based on the cranial angle of the carpal and ankle joints, measured with a radiogram, and the posture of the extremity. Blood samples were obtained from all calves for biochemical analysis and blood serum was extracted. Serum retinol (vitamin A), alpha tocopherol (vitamin E), cholecalciferol (vitamin D), certain trace elements (calcium, phosphorus, magnesium, copper, iron, zinc and manganese), T3 and T4 levels were measured. It was determined that the serum zinc levels of the calves with flexural deformity were lower, magnesium, calcium, vitamin E, free T3 and T4 levels were higher in comparison to the healthy calves in the control group. There was no difference between the other vitamin (D, E) and mineral levels. In conclusion, instead of subjective evaluation, objective evaluation criteria were presented in the grading of the deformity. It was also thought that it would be useful to consider objective evaluation in determining treatment options. It was thought that the addition of zinc to animal feeds during pregnancy in farms that the cases are common, can reduce these deformities.
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Background. It is recognised that both nutritional status and an improper diet have significant effects on weakening the outcomes of treatment in cancer patients. As a result, a lowered response to therapy and an increase in untoward side effects is often observed leading to a deteriorating quality of life. The role of an adequately balanced diet is thus regarded as being vital in supporting recovery. Objective. To assess the dietary consumption of calories, macro-elements and selected vitamins and minerals for subjects diagnosed with cancers of the breast, lungs and bones or soft tissue. Material and Methods. A survey was performed on 100 subjects diagnosed with various tumours between the September and December months of 2011 consisting of 34 with breast cancer, 33 lung cancer and 33 with bone or soft tissue cancer. The questionnaire was devised in-house, which included a three day dietary record. Results. The average daily calorific intake was found to be inadequate at 1608 kcal. In addition, abnormal proportions of energy derived from macro-elements was seen, where the contributions made by fats and proteins were somewhat high at respectively 35.1% and 16.5%, but too low in the case of carbohydrates at 52.1%. Up to 78% subjects had insufficient protein intakes, 88% showed deficiencies in consuming carbohydrates, as were 89% for fibre, 85% vitamin C, 99% calcium, 98% magnesium and 81% for iron. Conclusions. Many dietary shortcomings were observed in the studied subjects. There is therefore a need to educate persons suffering from cancer to adopt an adequate and balanced diet as means of providing vital support for treatment to be more effective.
 Homocysteine is an amino acid, which plays several important roles in human physiology. A wide range of disorders, including neuropsychiatric disorders and autism, are associated with increased homocysteine levels in biological fluids. Various B vitamins: B6 (pyridoxine), B12 (cobalamin), and B9 (folic acid) are required as co-factors by the enzymes involved in homocysteine metabolism. Therefore, monitoring of homocysteine levels in body fluids of autistic children can provide information on genetic and physiological diseases, improper lifestyle (including dietary habits), as well as a variety of pathological conditions. This review presents information on homocysteine metabolism, determination of homocysteine in biological fluids, and shows abnormalities in the levels of homocysteine in the body fluids of autistic children.
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