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Full-Text Articles in Life Sciences
The Role Of Cdk5r1 In Β-¬Cell Survival From Apoptosis, Amanda Hobson, Jeffrey Tessem
The Role Of Cdk5r1 In Β-¬Cell Survival From Apoptosis, Amanda Hobson, Jeffrey Tessem
Journal of Undergraduate Research
Type 1 and Type 2 diabetes are classified as a decrease in functional ß-cell mass, which results in impaired blood glucose regulation. Functional ß-cell mass is defined as the glucose stimulated insulin secretion rate multiplied by the total cellular mass which is determined by the proliferation and cell death rates. Though ß-cell mass proliferation rates generally decrease by adolescence, obesity and pregnancy have been shown to be times of significant ß-cell proliferation (1). This implies that the inherent molecular pathways necessary for ß-cell proliferation are present, but highly regulated. Discovering the molecular pathway of ß-cell proliferation could lead to diabetes …
Determining If C-Fos Protects Β-Cells From Apoptosis, Kyle Kener, Jeffery Tessem
Determining If C-Fos Protects Β-Cells From Apoptosis, Kyle Kener, Jeffery Tessem
Journal of Undergraduate Research
Diabetes, a disease characterized by the inability of the body to maintain a normal blood glucose level, continues to affect the lives of many. In both Type I and Type II diabetes, eventual β-cell destruction results in decreased β-cell mass. Regeneration of functional β-cells and protection of such, could help reverse the effects of this disease and could possibly lead to a cure. Many studies have been done to increase functioning β-cell mass, but protecting regenerated β-cells from further apoptotic insults could greatly increase the effectiveness of β-cell transplants and other future treatments of the disease.
This Project Focused On The Effects Of Palmitate On Transcription Factors, Nr4a1 And Nr4a3. All Experiments Were Preformed On A Beta Cell Line. The First Experiment Was Done To Show If Palmitate Effected Proliferation Of Nr4a1 And Nr4a3 Knockout Cell Lines. This Experiment Was Preformed Adding .2 Mmol Palmitate To All Cells And Comparing Them To Untreated And Treated Unknocked Down Cell Lines. This Showed Exactly What Was Expected Which Was That Proliferation Was Decreased In Nr4a1 And Nr4a3 Knockdown Cell Lines., Jordan Tingey, Jeffery Tessem
Journal of Undergraduate Research
This project focused on the effects of palmitate on transcription factors, Nr4a1 and Nr4a3. All experiments were preformed on a beta cell line. The first experiment was done to show if palmitate effected proliferation of Nr4a1 and Nr4a3 knockout cell lines. This experiment was preformed adding .2 mmol palmitate to all cells and comparing them to untreated and treated unknocked down cell lines. This showed exactly what was expected which was that proliferation was decreased in Nr4a1 and Nr4a3 knockdown cell lines.
The Role Of Hdac1 In Increasing Β-Cell Glucose Stimulated Insulin Secretion And Apoptosis Resistance, Carrie Draney, Jeffery Tessem
The Role Of Hdac1 In Increasing Β-Cell Glucose Stimulated Insulin Secretion And Apoptosis Resistance, Carrie Draney, Jeffery Tessem
Journal of Undergraduate Research
Type 1 and type 2 diabetes affects more than 9% of the American population and the incidences of diabetes continue to increase at a startling rate. Both Type 1 and Type 2 diabetes impede β- cell function (insulin secretion) by destroying β-cell mass. Increasing proliferation and function of β-cells could potentially be used as a cure for diabetes. Research has shown that the homeobox β-cell transcription factor Nkx6.1 induces β-cell proliferation. We have found that Nkx6.1 upregulates expression of HDAC1 and this project will allow us to further define the specific role of HDAC1 in increasing β-cell proliferation. We hypothesize …
Determining If C-Fos Regulates Glucose Stimulated Insulin, Benjamin Bitner, Jeffery Tessem
Determining If C-Fos Regulates Glucose Stimulated Insulin, Benjamin Bitner, Jeffery Tessem
Journal of Undergraduate Research
Increasing a patient’s functional β-cell mass may provide a cure for both types of diabetes. Previous studies have shown that overexpression of the homeodomain transcription factor Nkx6.1 stimulates β-cell proliferation, increases glucose stimulated insulin secretion (GSIS) and decreases apoptosis1. Functional β-cell mass is defined by the number of β-cells, which is dependent on proliferation and apoptosis rates, multiplied by the ability to secrete insulin. Increasing β-cell proliferation or insulin secretion while decreasing apoptosis could be used as a treatment to produce β-cells for islet transplantation, a potential cure for diabetes.