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Articles 1 - 7 of 7
Full-Text Articles in Chemicals and Drugs
Tyrosine Phosphorylation Of Villin: Effects On Actin Dynamics, Cell Morphology And Cell Migration, Alok Tomar
Tyrosine Phosphorylation Of Villin: Effects On Actin Dynamics, Cell Morphology And Cell Migration, Alok Tomar
Theses and Dissertations (ETD)
Cell migration is a key aspect of many normal and abnormal biological processes, including embryonic development, defense against infections, wound healing, and tumor cell metastasis. In this study we demonstrate that an epithelial cell actin-binding protein, villin, plays a crucial role in the process of cell migration. Overexpression of villin in doxycyline-regulated HeLa Tet-off and MDCK Tet-off cells enhanced cell migration. We further demonstrate that tyrosine phosphorylation of villin by c-src is required for villin-induced cell migration. Previously, we identified four tyrosine phosphorylation sites in the amino-terminal domain of villin. I further identified six new sites in the carboxylterminal region …
Gene Expression In The Mouse Placenta: Developmental And Stress Responses, Ciprian P. Gheorghe
Gene Expression In The Mouse Placenta: Developmental And Stress Responses, Ciprian P. Gheorghe
Loma Linda University Electronic Theses, Dissertations & Projects
Successful placental development is crucial for optimal growth, maturation, and survival of the embryo/fetus. Placental failure and placental pathology contributes to both morbidity and mortality of the fetus. We sought to understand normal placental development and also placental responses to stress using oligonucleotide microarray technology. To examine genetic aspects of normal placental development, we investigated gene expression patterns in the murine placenta at embryonic day 10.5 (E10.5), E12.5, E15.5, and E17.5. Hypoxia has been identified as a major stressor in placental and fetal development. In order to comprehend more completely hypoxic stress responses we sought to measure gene expression changes …
The Acute Effects Of Nut Ingestion On Plasma Levels Of Polyphenol Compounds, Biomarkers Of Antioxidant Status, And Lipid Peroxidation, Setareh Torabian Esfahani
The Acute Effects Of Nut Ingestion On Plasma Levels Of Polyphenol Compounds, Biomarkers Of Antioxidant Status, And Lipid Peroxidation, Setareh Torabian Esfahani
Loma Linda University Electronic Theses, Dissertations & Projects
Nuts are rich sources of polyphenolic compounds and nutrients, which have antioxidant capacity. To assess the acute effect of treatment diet (75% of energy from nuts (walnut or almond) and control diet (habitual diet with no nut consumption) in healthy subjects on plasma total phenol content, antioxidant capacity and plasma lipid peroxidation. Thirteen subjects participated in the crossover design study. After an overnight fast, walnut, almond and a control diet, in form of smoothies, were consumed by the study subjects. Each subject participated on three occasions one week apart, consuming one of the smoothies each time. Blood samples were obtained …
Factors That Influence The Blood Flow Response Of Skin To Electrical Stimulation, Abdul-Majeed Raja Al-Malty
Factors That Influence The Blood Flow Response Of Skin To Electrical Stimulation, Abdul-Majeed Raja Al-Malty
Loma Linda University Electronic Theses, Dissertations & Projects
Female reproductive hormones, aging, global heating and local heating are factors affecting skin blood flow (SBF), but their effect on electrical stimulation (ES) has never been examined until the present investigation. To investigate female reproductive hormones, nine women (age= 25.6±3.5 years) with a normal menstrual cycle (MC) underwent ES in thermoneutral (25°±0.5°C) and warm environments (35°±0.5°C). To investigate aging, ES was applied on active young (n=15, age=32.1±8.3 years) and old (n=8, 64.5±6.2 years) groups in thermoneutral and warm environments. To investigate the effect of global and local heating, groups of 15 and 18 subjects (age= 18-40 years) experienced ES under …
A Mechanistic Study Of The Protective Effects Of S-Adenosyl-L-Methionine Against Hepatotoxicity Of Acetaminophen, Marcus V. Terneus Jr.
A Mechanistic Study Of The Protective Effects Of S-Adenosyl-L-Methionine Against Hepatotoxicity Of Acetaminophen, Marcus V. Terneus Jr.
Theses, Dissertations and Capstones
Hepatic toxicity is known to be associated with excessive doses of the over-the-counter analgesic, acetaminophen (APAP). APAP overdose is the leading cause of drug-induced liver failure in the United States. APAP hepatotoxicity is dependent on the biotransformation of APAP by cytochrome P450 to the toxic metabolite, N-acetyl-p-benzoquinone imine (NAPQI). APAP, when taken in excessive doses, can lead to severe liver damage with the potential to progress to liver failure. Despite substantial efforts in past studies, the mechanism by which APAP induces such damaging effects is not completely understood. Recent discoveries suggest that glutathione (GSH) depletion, protein alkylation and reactive metabolite …
Identification Of Novel Allosteric Regulators Of Human Erythrocyte Pyruvate Kinase, Shilpa S. Kharalkar
Identification Of Novel Allosteric Regulators Of Human Erythrocyte Pyruvate Kinase, Shilpa S. Kharalkar
Theses and Dissertations
Erythrocyte pyruvate kinase (R-PK) is a key glycolytic enzyme catalyzing the transphosphorylation of phosphoenolpyruvate (PEP) and ADP to pyruvate and ATP respectively3,4. The substrate PEP and product pyruvate of this reaction are involved in a number of energetic and biosynthetic pathways; hence a tight regulation of R-PK activity is crucial not only for glycolysis, but also for the entire cellular metabolism. Deficiency of R-PK is one of the most common enzymatic defects of RBC, and may be caused by mutations of the PK-LR (pyruvate kinase liver red blood cell) gene31, 32. Clinically, R-PK deficiency manifests itself as a chronic life-long …
Discovery Of Lignin Sulfate As A Potent Inhibitor Of Hsv Entry Into Cells, Jay N. Thakkar
Discovery Of Lignin Sulfate As A Potent Inhibitor Of Hsv Entry Into Cells, Jay N. Thakkar
Theses and Dissertations
The herpes virus family consists of more than hundred members that infect organisms, of which eight, differing markedly in the biology are known to infect humans. HSV- I is the most common one, causing oral lesions and sporadic encephalitis. These infections are highly prevalent affecting at least one in three individuals in the United States.The entry of the herpes virus into the cell is a two-step process. The initial step involves the cell surface heparan sulfate and glycoproteins in the viral envelope which enables the virus to penetrate into the cell. The second step is the fusion step. Depending on …