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Articles 1 - 8 of 8
Full-Text Articles in Life Sciences
Understanding The Mechanism Of Oxidative Stress Generation By Oxidized Dopamine Metabolites: Implications In Parkinson's Disease, Nihar Mehta
Wayne State University Dissertations
Oxidation of dopamine to toxic metabolites is considered to be one of the prime factors involved in the death of dopaminergic neurons in Parkinson’s disease. Some dopamine oxidation products have the capability to redox cycle in the presence of molecular oxygen, further contributing to oxidative stress. Therefore, our aim here was to study the redox cycling of dopamine oxidized metabolites and elucidate the underlying mechanism by which they cause oxidative stress.
Redox reactions involve transfer of one or more electrons between two compounds
resulting in either oxidation or reduction. In redox cycling, a compound undergoes
alternate oxidation and reduction, transferring …
Anti-Cancer Effects Of Tocotrienols In Nsclc, Lichchavi Raj Raj
Anti-Cancer Effects Of Tocotrienols In Nsclc, Lichchavi Raj Raj
Wayne State University Dissertations
Lung cancer is one of the leading causes of death among cancers, with non-small cell lung cancer (NSCLC) accounting for 80-85% of all lung cancers and a five-year survival rate of 5 % at stage IIIB. Delta-tocotrienol (δT) including other tocotrienol isomers has been shown to exhibit anti-tumor activity via inhibition of different signaling pathways in tumors including NSCLC. Previously we reported that δT reduced cell invasion via inhibition of the Notch-1 and NF-κb pathway.
Matrix metallopeptidase 9 (MMP9) dependent cell migration and invasion are key processes in cancer metastasis. Hence, its suppression is a promising strategy for cancer therapeutics. …
Pet Imaging Of Early Therapeutic Response In Solid Tumors, Stephanie J. Blocker
Pet Imaging Of Early Therapeutic Response In Solid Tumors, Stephanie J. Blocker
Wayne State University Dissertations
An important pillar of precision medicine for oncology is the ability to identify patients who respond to treatment early into their therapy. Positron emission tomography (PET) allows physicians and researchers to measure changes in tumor behavior prior to noticeable differences in morphology.
Objective: Determine the utility of multiple tracers for PET in assessing early changes in tumor activity that result from treatment.
Methods: Two tracers for PET were studied. 64Cu-labeled liposomes were used to assess changes in liposome delivery two solid colon tumors early into treatment with bevacizumab (Bev). 18F-FMAU thymidine analog (1-(2'-deoxy-2'-fluoro-beta-D-arabinofuranosyl)thymine), was utilized to detect early response to …
Analysis Of The Secondary Neurodegenerative Consequences Of Primary Oligodendrocyte Stress Through The Use Of The Novel Obiden Mouse Model, Daniel Zdzislaw Radecki
Analysis Of The Secondary Neurodegenerative Consequences Of Primary Oligodendrocyte Stress Through The Use Of The Novel Obiden Mouse Model, Daniel Zdzislaw Radecki
Wayne State University Dissertations
The work of this project was to develop, test and characterize a potential novel mouse model of the neurodegenerative disease Multiple Sclerosis (MS). Historically, MS has been identified as a primary autoimmune disease of the central nervous system (CNS). However, treatments based on this view have met with limited success, and in most cases, fail to prevent progression of MS from mild to moderate and severe forms. Original observations regarding axonal and neuronal pathology in the white and gray matter of the CNS were rediscovered in the 1990s. These observations indicated that even in the absence of the immune system, …
Estimating The Variables Of The Nonlinear Dynamical Theory Of Acute Cell Injury, Fika Tri Anggraini
Estimating The Variables Of The Nonlinear Dynamical Theory Of Acute Cell Injury, Fika Tri Anggraini
Wayne State University Dissertations
This Dissertation is the first to estimate the variables D and S of the nonlinear theory of acute cell injury in hippocampal regions CA1 and CA3 using a rat model of global brain ischemia and reperfusion (I/R). D was estimated by quantifying protein aggregates using ubiquitin Western blotting. S was estimated by quantifying changes in polysomal mRNAs as measured by microarray chips. D and S time courses were sampled at 0.5, 8, 16, 24, 48, and 72 hrs of reperfusion after 10 min brain ischemia. CA1 dies and CA3 survives. The theory predicts D will be larger in CA1 and …
Functions Of Atr/Mec1 In Meiosis And The Cell Cycle, Layne Weatherford
Functions Of Atr/Mec1 In Meiosis And The Cell Cycle, Layne Weatherford
Wayne State University Dissertations
Mec1 is a protein kinase in S. cerevisiae that is critical for the DNA damage checkpoint response, and is the yeast orthologue of the human ATR protein. Cancer cells rely on ATR to arrest the cell cycle and allow sufficient time to repair DNA damage before proceeding through the cell cycle, and ATR inhibitors have been developed as possible anti-cancer agents. DBF4 is the regulatory subunit of DBF4-dependent kinase (DDK) that regulates initiation of DNA replication and is overexpressed in a number of different cancer types. To better understand ATR and DBF4 function, we took advantage of yeast genetics to …
Sleep Disturbance And The Immunological Acute Phase Response In Hospitalized Post-Operative Adults., Jean Dorothy Humphries
Sleep Disturbance And The Immunological Acute Phase Response In Hospitalized Post-Operative Adults., Jean Dorothy Humphries
Wayne State University Dissertations
Abstract
Sleep Disturbance and the Immunological Acute Phase Response
in Postoperative Hospitalized Adults
Abstract
The purpose of this study was to examine the subjective and objective (actigraphy) sleep patterns, the immunological acute phase response of IL1-β and TNF-α, and the physiological stress response of cortisol and systolic blood pressure in post-operative abdominal surgical patients. Nineteen subjects, 10 men and 9 women, mean age 45.63 years (SD = 11.44) were enrolled between April 2015 and March 2016. All subjects were elective major invasive abdominal surgery patients. Laparoscopic surgery occurred in 10 patients and incisional surgery occurred in 9 patients. This descriptive …
Clinicopathology And Molecular Determinants Underlying Benign Breast And Breast Cancer Lesions, Andreana Holowatyj Holowatyj
Clinicopathology And Molecular Determinants Underlying Benign Breast And Breast Cancer Lesions, Andreana Holowatyj Holowatyj
Wayne State University Dissertations
Despite converging incidence rates for breast cancers by race, disparities in mortality persist where black women suffer from poorer prognosis compared to white counterparts. To understand the clinical, demographic, and molecular characteristics underlying these disparities, we examined differences among patients with breast cancer to understand the role of human epidermal growth factor receptor 2 (HER2) status, age, and race/ethnicity among women diagnosed with hormone receptor-positive breast cancer, and disparities in surgical therapy among female patients with early stage young-onset breast cancer. Benign breast disease, another known risk factor for breast cancer, includes a histological spectrum of lesions, could contribute to …