Nutrition Commons^™

The Impact Of Folate Deficiency On The Base Excision Repair Pathway: Analysis Of Enzyme Coordination In Response To Dna Damage And Imbalanced Repair, Amanda Pilling

Wayne State University Dissertations

The condition of folate deficiency has been implicated in carcinogenesis, with the strongest evidence formulated in colon cancer. The role of folate in DNA repair, DNA synthesis and methylation reactions renders this nutrient an valuable target for studying the onset and progression of cancer. Using molecular techniques to determine gene and protein expression, enzyme activity and methylation status elucidates the mechanism of DNA repair and damage in folic acid deficient animals in response to carcinogen. The findings presented in this study indicate failure to remove and repair damage in the condition of folate deficiency and suggest that the accumulation of …

Base Excision Repair, Folate Deficiency And Cancer, Archana Unnikrishnan

Wayne State University Dissertations

Folate, an essential water soluble vitamin has been implicated in the etiology of many types of cancer especially colorectal cancer. Folate deficiency has been reported to incapacitate DNA repair pathways and thereby affect the genomic stability. Our lab has reported previously and here again through this research that folate deficiency affects the DNA damage inducibility of base excision repair pathway. Our study shows the differential effect folate deficiency has on the expression of the genes involved in this pathway. Further, our study shows the increase in preneoplastic lesions in the colon of mice exposed to folate deficiency in response to …

Effects Of Dietary Fat Saturation On Lipoprotein Metabolism In Rodents And Humans, Deepinder Kaur

Wayne State University Dissertations

Consumption of trans-fatty acids (tFA) and saturated fatty acids (SFA) have been associated with higher incidence of coronary heart disease. Experimental and observational data suggests that consumption of PHVO containing tFA, like SFA leads to increased total cholesterol and LDL-cholesterol (LDL-C) but compared to tFA, SFA raises HDL-cholesterol (HDL-C). An attempt to eliminate PHVO from the food supply has resulted in the need to find alternatives which despite their higher dietary fat saturation as compared to naturally occurring vegetable oils, may be preferable to PHVO. However, amongst SFA, the effects on plasma lipoproteins are variable. Thus, we hypothesized that specific …

Metabolomic Profiling To Investigate Effect Of Curcumin In Lung Cancer, Arvind Goja

Wayne State University Dissertations

Lung cancer is the leading cause of cancer deaths in the US, in part due to poor diagnosis. Prognosis can be improved, if detected at an early stage. The objective of this study was to use the metabolomic approach to investigate early potential biomarkers for lung cancer. Golden Syrian hamsters were randomized into two groups (treatment and control). Lung cancer was induced in treatment group by a chemical carcinogen, N-nitrosobis-2-(oxopropyl) amine (BOP) while the control animals were injected with saline. Urine was collected weekly throughout the study and frozen at -800 C. Proton nuclear magnetic resonance (1H NMR) spectra, acquired …

Destruction Of Biological Tetrapyrrole Macrocycles By Hypochlorous Acid And Its Scavenging By Lycopene, Dhiman Maitra

Wayne State University Dissertations

Hypochlorous acid (HOCl) is a potent oxidant generated by the hemoprotein myeloperoxidase. Although HOCl plays an important role in the innate immune response,sustained high levels of HOCl has been implicated to play a harmful role. In several pathological conditions such as atherosclerosis, endometriosis and sickle cell disease where HOCl is elevated there are reports of significant free iron accumulation. Free iron is toxic since it can lead to the generation of other secondary free radicals such as hydroxyl radical by Fenton reaction. The exact source and mechanism by which the free iron is generated is not clearly understood. This work …

Development Of Interventions Aimed At Reducing Obesity And Cardiovascular Disease Risk In A Diverse Population Of College-Age Young Adults, Janice M.W. Rueda

Wayne State University Dissertations

ABSTRACT

DEVELOPMENT OF INTERVENTIONS AIMED AT REDUCING OBESITY AND CARDIOVASCULAR DISEASE RISK IN A DIVERSE POPULATION OF COLLEGE-AGE YOUNG ADULTS

by

JANICE MARIE WHINTER RUEDA

May 2011

Advisor: Dr. Pramod Khosla

Major: Nutrition & Food Science

Degree: Doctor of Philosophy

Obesity in the United States has increased dramatically over the past 30 years, and the country has fallen far short of the stated objective of Healthy People 2010 of reducing the prevalence of adult obesity to 15%. Among children, obesity has increased most significantly in the 12-19 year old age group. It is well established that obesity is associated with …