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Dissertations / Theses on the topic 'Endogenous Antioxidant'

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1

Mee, Simon P. H. "Synthetic approaches to alkaloid natural products using the Stille coupling." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289400.

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2

Chen, Yougui. "Endogenous Phenolics from Expeller-pressed Canola Oil Refining Byproducts: Evaluation of Antioxidant Activities in Cell Culture and Deep-fat Frying Models." Journal of agricultural and food chemistry, 2014. http://hdl.handle.net/1993/30357.

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Sinapic acid derivatives and tocopherols in refining byproducts of commercially produced expeller-pressed canola oils were characterized and isolated. Additionally, the antioxidant activities of the phenolics were examined by three systems including an in vitro non-biological related assay, a cellular assay and a deep-fat frying model. Sinapic acid (SA: 42.9 µg/g), Sinapine (SP: 199 µg/g), and Canolol (CAN: 344 µg/g) were found in different byproducts of canola oil refining, namely, soapstock, spent bleaching clay, and wash-water, respectively. Tocopherols (3.75 mg/g) and other non-identified
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3

FARGHALI, MAHITAB MAHMOUD ALSAYED ALY. "Effects of bioactive molecules and natural extracts with antioxidant action in the modulation of aging mechanisms." Doctoral thesis, Università del Piemonte Orientale, 2022. http://hdl.handle.net/11579/142784.

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The aging population grows every year, and certain nations have the largest percentage of elderly people. This population needs a growth in health care services since they are more likely to have chronic age-related disorders. "Healthy Aging" has been a research point to enhance the lives of the elderly. Several prior research on various nutraceuticals have been conducted to assess their potential as supplements to promote healthy aging and may even postpone the onset and progression of some age-related disorders. The antioxidant and anti-inflammatory effects of several nutraceuticals were inv
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4

Ajuwon, Olawale Razaq. "Improved modulation of the endogenous antioxidant system and inflammatory responses in male wistar rats by rooibos (Aspalathus linearis) and red palm oil (Elaeis guineensis)." Thesis, Cape Peninsula University of Technology, 2012. http://hdl.handle.net/20.500.11838/1516.

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Thesis submitted in fulfilment of the requirements for the degree Doctor of Technology: Biomedical Technology In the Faculty of Health and Wellness Sciences At the CAPE PENINSULA UNIVERSITY OF TECHNOLOGY, 2012<br>Oxidative stress and chronic (low-grade) inflammation are inseparably interconnected and both have been implicated in the aetiology of many disease states. The use of plant extracts for disease prevention and therapeutic purposes, is gaining more attention because of the health benefits of the bioactive phytochemicals in these extracts. This thesis reports on the antioxidant status, t
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5

Onodenalore, Akhile Collins. "Value-added functional protein products and endogenous antioxidants from aquatic species." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0018/NQ54850.pdf.

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6

Luoma, Adrienne M. "The Effects of Reactive Oxygen Species on Internodal Myelin Structure, and Role of Plasmalogen Phospholipids as Endogenous Antioxidants." Thesis, Boston College, 2009. http://hdl.handle.net/2345/1943.

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Thesis advisor: Daniel A. Kirschner<br>Reactive oxygen species (ROS) are implicated in a range of degenerative conditions, including aging, neurodegenerative diseases, and neurological disorders such as multiple sclerosis. Myelin is a lipid-rich multilamellar assembly that facilitates rapid nerve conduction in higher animals, and may be intrinsically vulnerable to oxidative damage given the high energetic demands and low antioxidant capacity of myelinating cells. To determine whether ROS can cause structural damage to internodal myelin, whole mouse sciatic and optic nerves were incubated ex vi
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7

Tuckey, Nicholas Pierre Lemieux. "Technologies for tissue preservation: the role of endogenous and exogenous antioxidants in preserving tissue function in chinook salmon, Oncorhynchus tshawytscha." Thesis, University of Canterbury. Biological Sciences, 2008. http://hdl.handle.net/10092/1510.

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The seafood industry is of considerable importance to both the New Zealand and global economies and therefore tissue preservation technologies that increase product quality and/or prolong shelf life have the potential to add significant value. Technologies for maintaining the viability of isolated tissues also have a wide range of other medical and industrial applications. This thesis examines the relationship between metabolic function, oxidation and cell death and the resulting stability of the non-viable tissues during long term storage in chinook salmon (Oncorhynchus tshawytscha) red and w
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8

Svensson, Michael B. "Endogenous antioxidants in human skeletal muscle and adaptation in energy metabolism : with reference to exercise-training, exercise-related factors and nutrition /." Stockholm, 2003. http://diss.kib.ki.se/2003/91-7349-433-X.

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9

Chen, Mei-Yu, and 陳美妤. "The Corrlection of Different Rigor Mortis Degree Hog Carcasses on Glycolysis, Metmyoglobin Reductase Activity and Endogenous Enzymic Antioxidant Activity." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/63314667175049581949.

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碩士<br>國立嘉義大學<br>動物科學系研究所<br>95<br>Abstract The objective of this study was to investigate the correlations of different rigor morits degree hog carcasses on glycolysis, metmyoglobin reductase activity and endogenous antioxidant enzymic activity。A total of 300 crossbred (Yorkshire × Landrace × Duroc) pigs were used in this stuy. The pigs were slaughtered using electrical stunning at local abattoir. Within 45 min after exsanguinations, 300 hog carcasses determined by tension load tester, and separated into slight(<1kg ), medium( 1-2kg ) and extreme ( >2kg ) groups of rigor mortis degree hog c
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10

Habas, Khaled S. A., Mhamoued Abdulmwli, E. Demir, B. K. Jacob, Mojgan Najafzadeh, and Diana Anderson. "DNA damage protection by bulk and nano forms of quercetin in lymphocytes of patients with chronic obstructive pulmonary disease exposed to the food mutagen 2-amino-3-methylimidazo [4,5-f]quinolone (IQ)." 2018. http://hdl.handle.net/10454/16420.

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Yes<br>Chronic obstructive pulmonary disease (COPD) in humans, describes a group of lung conditions characterised by airflow limitation that is poorly reversible. The airflow limitation usually progresses slowly and is related to an abnormal inflammatory response of the lung to toxic particles. COPD is characterised by oxidative stress and an increased risk of lung carcinoma. The 2-amino-3-methylimidazo [4,5-f]quinoline (IQ) is one of a number of mutagenic/carcinogenic heterocyclic amines found mainly in well-cooked meats which are thus part of the regular diet. Antioxidants are very important
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11

Habas, Khaled S. A., Martin H. Brinkworth, and Diana Anderson. "Silver nanoparticle-mediated cellular responses in isolated primary Sertoli cells in vitro." 2018. http://hdl.handle.net/10454/15658.

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Yes<br>The present study explored the mechanism of cytotoxic and genotoxic effects of AgNPs on a primary culture of mouse Sertoli cells in vitro. To understand the possible molecular mechanisms of testicular lesions following exposure to AgNPs, isolated Sertoli cells were exposed to 5, 10, or 15 μg/ml. DNA damage in the Comet assay and apoptosis in the TUNEL assay were evaluated. The mRNA expression of p53 and bcl-2 genes and their proteins involved in apoptosis was also investigated. The antioxidant status of treated Sertoli cells was determined by measuring superoxide dismutase (SOD-1), cata
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12

Kirshenbaum, Lorrie Allan. "Significance of endogenous antioxidants against oxidative-stress injury in hypertrophied hearts." 1992. http://hdl.handle.net/1993/17466.

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13

Brinkhorst, JOHAN. "DEBUNKING ENDOGENOUS OZONE & TOWARDS TERT-BUTYLATED 3-PYRIDINOLS AND 5-PYRIMIDINOLS." Thesis, 2008. http://hdl.handle.net/1974/1586.

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Hydrocarbon autoxidation, a free radical chain reaction, is one of the most important chemical processes, and is ubiquitous in biological systems and industry. While it is vital to maintaining cellular homeostasis and plays central roles in the immune and inflammatory responses, it is also believed to play a role in the onset and development of diseases and degenerative disorders when not kept in check. In vivo, this process is generally initiated by the reduction of O2 to superoxide (O2•-), which can then afford various reactive oxygen species (ROS), such as HOO•, H2O2, HO•, and 1O2. Recently
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14

Mourão, Carlos Manuel Pombo Martins. "Enzimas antioxidantes e patologias neurodegenerativas: estado da arte." Master's thesis, 2013. http://hdl.handle.net/10284/7043.

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A literatura apresenta uma evidência crescente de que o stress oxidativo promovido pelas espécies oxigénio-reativas (ROS) pode ter um papel vital na etiologia das doenças neurodegenerativas como a doença de Alzheimer, a doença de Parkinson ou a esquizofrenia, entre outras. As ROS possuem um papel duplo, tanto benéfico quanto prejudicial, no organismo humano. Estas são geralmente reguladas por enzimas antioxidantes endógenas para que o balanço oxidativo seja mantido mas, por factores endógenos e exógenos, pode ocorrer uma alteração com produção excessiva que resulta em stress oxidativo. Este st
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15

Chang, Ting-Ting, and 張婷婷. "Antioxidative stability of endogenous enzymic and non-enzymic antioxidants in Chinese-style semi-dry sausage as affected by drying temperuature and storage time." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/09321122877096560135.

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碩士<br>國立嘉義大學<br>動物科學系碩士班<br>93<br>The muscle tissue contains various endogenous antioxidant compounds, which includes enzymic antioxidants--- superoxide dismutase, glutathione peroxidase, catalase, and nonenzymic antioxidants---carnosine and anserine, which had functions of both free radical scavenging and metal ion chelation to achieve the oxidative stability of meat. The purpose of this study was to evaluate the effect of various drying temperatures(55、50、45 and 10℃)on stability of enzymeic antioxidants --- superoxide dismutase, glutathione peroxidase, catalase and nonenzymic antioxidants---
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16

Tuckey, Nicholas. "Technologies for tissue preservation : the role of endogenous and exogenous antioxidants in preserving tissue function in chinook salmon, Oncorhynchus tshawytscha : a thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Biochemistry in the University of Canterbury /." 2008. http://library.canterbury.ac.nz/etd/adt-NZCU20080624.193352.

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