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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

The effects of altered superoxide dismutase expression on age-related functional declines and survival in drosophila /

Martin, Ian, January 2008 (has links)
Thesis (Ph. D.)--Virginia Commonwealth University, 2008. / Prepared for: Dept. of Human Genetics. Bibliography: leaves 167-205.
12

Effects of altered superoxide dismutase expression on age-related functional declines and survival in drosophila

Martin, Ian. January 1900 (has links)
Thesis (Ph.D.)--Virginia Commonwealth University, 2008. / Prepared for: Dept. of Human Genetics. Title from thesis description page. Includes bibliographical references.
13

Using biotechnology to improve the production of rosmarinic acid from rosemary plants

El-Naggar, Hany M. January 1900 (has links)
Thesis (Ph.D.)--University of Nebraska-Lincoln, 2006. / Title from title screen (site viewed on Nov. 22, 2006). PDF text: 143 p. : ill. ; 5.19Mb. UMI publication number: AAT 3217531. Includes bibliographical references. Also available in microfilm and microfiche format.
14

An overview of some natural antioxidants used in meat and poultry products

Karre, Elizabeth A. January 1900 (has links)
Master of Science / Food Science Institute / Kelly J. K. Getty / In response to recent claims that synthetic antioxidants have the potential to cause toxicological effects and consumers’ increased interest in purchasing natural products, the meat and poultry industry has been seeking sources of natural antioxidants to replace synthetic antioxidants, which are currently being used by the industry. Due to their high phenolic compound content, fruits and other plant materials provide a good alternative to conventional antioxidants. Plum, grape seed extract, cranberry, pomegranate, bearberry, pine bark extract, rosemary, oregano, other spices, irradiated almond skins, and green tea have functionality as antioxidants in meat and poultry products. Pomegranate, pine bark extract, cinnamon, and cloves have exhibited stronger antioxidant properties than some of the synthetic antioxidants currently used by the meat and poultry industry. Of the discussed natural antioxidants, grape seed extract, cranberry, sage extract, thyme extract, basil extract, ginger extract, pine bark extract, and a Chinese 5-spice blend had the highest percent antioxidant activity (% AOA). (The quality of the antioxidant used may also impact its ability to function as an antioxidant). Some of these natural antioxidants have influenced color and sensory properties of finished meat and poultry products. Plum products used in meat and poultry products have increased redness of the finished product. In some products such as pork sausage or uncured meats, an increase in red color may be desired. Grape seed extract, pine bark extract, rosemary, almond skin powder, some spices and green tea extract have been shown to impact the color of finished meat or poultry products. Plum products and many other spices affect the overall sensory properties of meat or poultry products as well. Depending on the finished product, consumers may view these changes as positive or as negative. When selecting a natural antioxidant to use in a meat or poultry product, the sensory and quality impact on the product should be considered in order to achieve a product with the desired traits.
15

Catechins against sodium iodate-induced retinal degeneration. / CUHK electronic theses & dissertations collection

January 2013 (has links)
Yang, Yaping. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2013. / Includes bibliographical references (leaves 156-165). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstracts also in Chinese.
16

Expression Profiles Of Differentially Expressed Genes Of Rat Mammary Adenocarcinoma In Various Tumor Cell Lines And Effects Of Some Antioxidants/

Certel, Seçil. Güneş, Hatice January 2005 (has links) (PDF)
Thesis (Master)--İzmir Institute of Technology, İzmir, 2005. / Keywords: Antioxidants, gene expression, tumor suppressor genes. Includes bibliographical references (leaves. 51-63).
17

Effect of BHA, BHT, TBHQ, and PG on growth and toxigenesis of Aspergillus parasiticus and Aspergillus flavus

Lin, Chiu-Chuan Sheree January 2011 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries
18

The factors affecting the metabolism of linolenic acid

Otto, Emil Herman. January 1949 (has links)
Call number: LD2668 .T4 1949 O8 / Master of Science
19

Modulation of inflammatory responses by mitochondrial targeted antioxidants

Minter, Beverley E. January 2014 (has links)
Sepsis is a life threatening progression of a trauma or pathogen initiated systemic inflammatory response. Current treatment is supportive and depends mainly on antibiotics, fluids, and the careful administration of oxygen therapy. As sepsis progresses, it becomes a dysregulated inflammatory response, characterised by oxidative stress and excessive production of inflammatory cytokines, mitochondrial dysfunction and loss of antioxidant protection. Previous work on cells and animals has shown that novel antioxidants targeted to mitochondria may have a beneficial effect. To induce an inflammatory response and mitochondrial dysfunction, a human umbilical vein endothelial cell (HUVEC) in vitro mixed sepsis model with 0.2 μg/ml lipopolysaccharide (LPS) plus 20 μg/ml peptidoglycan (PepG) was used in the presence of a mitochondrially targeted vitamin E derivative, MitoVit E, and compared to the non-targeted vitamin E forms, Trolox and DL α-tocopherol acetate. Gene expression analysis was performed by quantitative polymerase chain reaction (qPCR) of the Toll-like receptor (TLR) 2 and 4 pathways from cells treated with the antioxidant +/- LPS/PepG for 4 h. Results showed that MitoVit E differentially regulated 11 genes compared to just four genes for the non-targeted forms of vitamin E. MitoVit E, Trolox and vitamin E were able to blunt IL-6 and IL-8 cytokine response in a dose-dependent manner. Inhibition of NFĸB gene and accessory protein expression was different for each antioxidant investigated along with effects on other inflammatory signalling proteins STAT 3 and MyD88. In addition, the antioxidants regulated radical production to similar extents, but had different effects on the reduced glutathione/oxidised glutathione, mitochondrial metabolic activity, mitochondrial membrane potential, oxygen consumption and mitochondrial number. In conclusion, MitoVit E showed encouraging effects in preventing dysregulation of the inflammatory response, maintaining mitochondrial membrane potential and radical production and normal cell function.
20

Characterization of yeast peroxiredoxin tsa1p in DNA damage response

Tang, Hei-man, Vincent., 鄧希文. January 2009 (has links)
published_or_final_version / Biochemistry / Doctoral / Doctor of Philosophy

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