Lic.-avh. (sammanfattning) Stockholm : Karol. inst., 2005. / Härtill 2 uppsatser.

Thesis (M.Sc.). / Written for the Dept. of Animal Science. Title from title page of PDF (viewed 2009/07/07). Includes bibliographical references.

No description available.

Dissertation (D.P.H.)--University of Michigan.

Dissertation (D.P.H.)--University of Michigan.

<p>Cilj ovog istraživanja je bio da se utvrdi nivo folne kiseline u serumu (fiziolo&scaron;ka vrednost je od 16,31 do 34,88 nmol/l) i proceni težina kliničke slike instrumentima kliničke procene (HAMD 17 i 21, MADRS i CGI skala) u populaciji bolnički lečenih pacijenata, koji boluju od te&scaron;ke depresivne epizode, ili rekurententog depresivnog poremećaja, i njihov odgovor na inicijalnu antidepresivnu terapiju sprovođenu prema smernicama nacionalnog vodiča. Odgovor na antidepresivnu terapiju je određivan nakon četiri i osam nedelja lečenja u odnosu na nivo folne kiseline i prema nadoknadi folne kiseline u dozi od 15 mg dnevno (kod pacijenata koji nisu adekvatno odreagovali na terapiju). Smatrano je da je antidepresivni odgovor adekvatan ukoliko je utvrđena redukcija skora na HAMD (17, 21) i MADRS za 50%. Istraživanje je obuhvatilo 102 pacijenata (69 osoba ženskog pola i 33 osobe mu&scaron;kog pola) starosti između 18 i 70 godina života. Utvrđeno je da je snižen nivo folne kiseline u krvi imalo 41,2% pacijenata.<em> X</em>² testom je ustanovljeno da postoje značajne razlike nivoa folne kiseline u krvi u odnosu na pol. Snižen nivo folne kiseline je zastupljeniji kod osoba mu&scaron;kog pola. Pacijenati sa sniženim nivoom folne kiseline su imali inicijalno značajno vi&scaron;e skorove na skalama kliničke procene i izostanak adekvatnog terapijskog odgovora u četvrtoj nedelji lečenja. U osmoj nedelji lečenja se ta razlika u terapijskom odgovoru izgubila. Utvrđena je statistički značajna razlika u skorovima na HAMD (17) i MADRS u tri merenja u zavisnosti od nivoa folne kiseline i nadoknade uz upotrebu vi&scaron;esmerne me&scaron;ovite analize varijanse (ANOVA). Utvrđeno je da postoji značajan glavni efekat merenja (skorovi se značajno razlikuju od merenja do merenja), i značajan efekat interakcije merenja i nadoknade.</p> / <p>The aim of this paper is to establish the levels of folic acid in serum (physiological values is from 16.31 to 34.88 nmol/l) and the assessment of seriousness of clinical picture by clinical assessment instruments (HAMD 17 and 21, MADRS and CGI scales) in the population of hospitalized patients suffering from severe depressive episodes, or recurrent depressive disorder, and their response to the initial anti-depressant therapy administered according to national guidelines. The response to anti-depressant therapy was determined after four or eight weeks of treatment in relation to the levels of folic acid and according to recuperation of folic acid in the dose of 15 mg daily (in patients who did not react adequately to the therapy). It was believed that the anti-depressive response was satisfying in case of the established score reduction on HAMD (17, 21) and MADRS for 50%. The research encircled 102 patients (69 of whom female patients and 33 males) aged between 18 and 70. A reduced level of folic acid in blood was found in 41.2% of the patients. By<em> X</em>² test determined that there were significant differences in the levels of folic acid in relation to the patient gender. A reduced level was more found in male patients. The patients with reduced levels of folic acid had initially significantly higher scores on clinical assessment scales and the lack of an adequate therapeutic response in the fourth week of the treatment. In the eighth week of the treatment that difference vanished in therapeutic response. A statistically significant difference was determined on HAMD (17) and MADRS during three measurements depending on the levels of folic acid and its recuperation by using a multiway diverse analysis of variance (ANOVA). It was determined that there is a significant central effect of measurements (scores significantly differ from measurement to measurement), as well as an effect of interaction of measurements and the recuperation.</p>

Thesis (MTech (Food Technology))--Cape Peninsula University of Technology, 2016. / In South Africa malnutrition exists due to inadequate dietary intake of micronutrients which is one of the major causes of vitamin deficiencies leading to disease. The treatment of malnutrition over the past years has been a considerable burden on the South African economy. Therefore, food fortification is one of the current strategies used to minimize malnutrition by increasing the nutritional value of staple foods. Commercial dairy products and pharmaceutical nutritional products (food supplements) in South Africa have been developed and produced for affluent consumers. Hence the need to develop an affordable fortified dairy product for the majority of South Africans prompted this study aimed at using a “naturally” fortified kefir beverage with vitamin B12 and folate to increase B-vitamins levels. Since Propionibacterium freudenreichii and Streptococcus thermophilus are known to be good producers of vitamin B12 and folate, respectively, and propionibacteria has the ability to grow symbiotically in the presence of lactic acid bacteria, the inclusion of these organisms with the kefir grains was an achievable objective. In order to conduct the analysis of vitamin B12 and folate in the samples, sample extraction and HPLC assay techniques were developed. The extraction of vitamin B12 and folate were achieved by using KCN extraction buffer and the trienzymatic method, respectively. The samples were also subjected to purification and concentration using solid phase extraction for optimum results. All standards and samples were flushed with nitrogen gas and stored for a maximum of 2 weeks at –20°C to prevent B-vitamin deterioration. The HPLC assembly for the vitamin B12 analysis included a Luna C18 column and a diode array detector (DAD) for the detection and quantification. For the folate analysis it included a Zorbax SB-C18 and Luna C18 columns in tandem and the fluorescence detector (FLD) was used for the detection and quantification of THF, 5-CH3-THF and 5-CHO-THF, while the DAD was used for PGA and pteroyltri-γ-L-glutamic acid concentration in the samples.

Thesis--Gothenburg. / Without thesis statement. Bibliography: p. 169-175.

Thesis--Gothenburg. / Without thesis statement. Bibliography: p. 169-175.

Oxidative stress is characterized by the cellular accumulation of reactive oxygen species (ROS). Increased production of ROS, such as the superoxide anion (O2.-), or a deficiency in their clearance by antioxidant defenses, mediates the cellular pathology. Non-alcoholic fatty liver disease (NAFLD) is a broad spectrum liver disorder commonly manifesting in milieu of the metabolic syndrome. Oxidative stress is an important pathogenic mediator in NAFLD, and in its associated morbidities like atherosclerosis. The objective of my research was to investigate the regulation of oxidative stress and the antioxidant actions of natural health products (NHPs) in the context of NAFLD and its associated disorders. The O2.- generating NADPH oxidase contributes to atherogenesis by facilitating macrophage induced vascular injury. In manuscript I, the plant alkaloid berberine effectively abolished NADPH oxidase mediated O2.- production in lipopolysaccharide stimulated macrophages. Real-time PCR analysis and siRNA transfection studies revealed that berberine mediated its effects through down-regulation of the oxidase’s catalytic subunit gp91phox. Berberine also restored the activity of the O2.- clearing enzyme superoxide dismutase (SOD). High fat diet (HFD) fed rodents are a popular model for investigating NAFLD pathogenesis. In manuscript II, folic acid supplementation significantly reduced HFD-induced hepatic oxidative stress and liver injury in mice. Folic acid decreased NF-kB/DNA binding, down-regulated NADPH oxidase gene expression, and inhibited the oxidase. The antioxidant activities of SOD and catalase were restored and the reduced to oxidized glutathione ratio (GSH:GSSG) was re-established with folic acid supplementation. Folic acid’s hepatoprotective antioxidant effects were associated with a marked improvement in liver histology. Homocysteine (Hcy) levels are perturbed in NAFLD, but the etiology is unclear. In manuscript III, HFD fed mice exhibited decreased Hcy levels. Real-time PCR and Western Immunoblotting analysis revealed that Hcy catabolising enzymes cystathionine-b-synthase (CBS) and cystathionine-g-lyase (CSE) were increased in the liver of these animals. The transsulfuration activities of these enzymes were elevated and coincided with enhanced hepatic hydrogen sulfide biosynthesis. Glutathione was maintained despite increased hepatic oxidative stress. Taken together, NHPs such as berberine and folate, and Hcy catabolising enzymes CBS and CSE, might have therapeutic potential for managing oxidative stress in NAFLD and its associated co-morbidities. / October 2015