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Vitamin D blood level and its relationship to recurrent childhood diseases
HAVLOVÁ, Adéla
"Vitamin D blood level, factors that affect it, and its relationship to reccurent infections" is topic repeatedly discussed in domestic and foreign literature. This topic is a multidisciplinary issue, but it mainly relates to nutrition and sun exposure. The aim of this study is to map relationship of vitamin blood levels in relation to diseases of the respiratory system, vitamin D suplementation, recurrent infections, usage of sunscreen with a protective factor, nutrition and outdoor stay in winter months. The study was conducted on a research sample of preschool children. Two sets of data were used to evaluate objectives and research questions. The first research group consisted of 48 children and had 2 groups. The first group of 21 children was established in the Waldorf kindergarten in Rudolfov and the second group of 17 children was created in a non-state medical facility in Trebon. The first research consisted of 48 children who were tested on vitamin D blood level and filled survey questionnaire. The second research consisted of 61 children who were tested on vitamin D blood level in a non-state medical facility. Some results of this study are contradictory because of inadequate methodology. Positive results have been shown with vitamin D supplementation, higher consumption of liver, eggs and daily intake of vegetable oils.
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The illness of pre school age children in connection with level of vitamin D in blood
KAISEROVÁ, Klára
Literature and individual authors, for example, in the Czech Republic, Tláskal (2013) and Broulík (2013) agree and draw attention to the negative effect of vitamin D deficiency on a wide range of diseases. The aim of this bachelor thesis is to find out how low levels of vitamin D affect the occurence of respiratory diseases in pre-school and school children. A complementary subject of research is to determine the proportion of vegetable oils or animal fats used in the preparation of children's diet in the home environment. In connection with sun-light and vitamin D formation, I will also look at whether parents apply to children creams with a protective factor, or when. The theoretical part describes the basic information about vitamins and more specifically is devoted to groups of fat and water soluble vitamins. Another part of the theoretical work is dedicated to vitamin D, which deals with both basic information as well as detailed problems of the effect of vitamin D deficiency on the immune system of children. Furthermore, in the theoretical part of the thesis, the optimal plasma calcidiol saturation is mentioned, closely related to the research part of the thesis. In the practical part I worked with a set of 17 respondents in pre-school and school age, and they were divided into two groups. The first group consists of 12 respondents with recurring airway inflammation; the second group consisted of 5 "healthy" children who did not experience recurrent airway inflammation. By venipuncture (venous blood sampling), all patients were laboratory tested and then compared the blood vitamin D level with the physiological standard of the age group. The question of the fat ratio in the diet and the use of sunscreen was evaluated by a questionnaire for all respondents. From the processed results in our research group of respondents it has been shown that the level of vitamin D in blood in children with respiratory diseases is low. It has also been shown that in the preparation of the diet in both groups of respondents, vegetable oils predominate above the animal fats. The results showed that parents in most cases apply sunscreen creams in direct sunlight if they do not visit the sea most often in the Czech Republic. The overall factors that could have the most impact on the outcome of the whole practical part of the thesis are the small number of respondents overall.
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