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Life Sciences

Gene expression

Biological Sciences Theses & Dissertations

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Pthr1/Sox9 And Idh1/Idh2 Relative Expression In Primary Chondrocyte And Chondrosarcoma Cells Under The Synergistic Influence Of Inducible Hypoxia And Extracellular Acidosis, Kostika Vangjeli Apr 2020

Pthr1/Sox9 And Idh1/Idh2 Relative Expression In Primary Chondrocyte And Chondrosarcoma Cells Under The Synergistic Influence Of Inducible Hypoxia And Extracellular Acidosis, Kostika Vangjeli

Biological Sciences Theses & Dissertations

Cartilage cells (Chondrocytes) grow in rather unique environmental conditions in the human body. Cartilage is avascular tissue and lacks innervation. Its main source of nutrients is derived from the synovial fluid and/or perichondrium. Consequently, these cells must survive and thrive under hypoxic and acidic stressors. Published data suggests that there are a multitude of genes affected from either one of these two stressors or both. However, these factors are frequently overlooked in cartilage research, and results are reported in either normoxia/pH=7.0 conditions, or they only account for one of the conditions. The scope of this study is to examine how …


Patterns Of Gene Expression From Human Costal Cartilage In Relation To The Chest Wall Deformity Pectus Carinatum, Janna E. Grubbs Apr 2013

Patterns Of Gene Expression From Human Costal Cartilage In Relation To The Chest Wall Deformity Pectus Carinatum, Janna E. Grubbs

Biological Sciences Theses & Dissertations

Cartilage deformities within the human chest wall, specifically pectus excavatum (PE) and pectus carinatum (PC) are common (1/400-1/1000) and yet, despite their clinical significance, are some of the least studied disorders pertaining to cartilage [1]. The costal cartilage connecting "false ribs" 8-10 to the sternum is often abnormally grown and can lead to formation of a severely sunken "funnel" chest (PE) or push outwards to form a "pigeon" chest (PC). Both conditions can have impact on the diaphragm, heart, lungs, and psychological function. An established ratio of PE and PC in males to females is 4:1, indicating a sex-linked male …


Variation In The Fluorescence Of Green Fluorescent Protein In Various Strains Of Escherichia Coli, Paul R. Letellier Jr. Jul 2005

Variation In The Fluorescence Of Green Fluorescent Protein In Various Strains Of Escherichia Coli, Paul R. Letellier Jr.

Biological Sciences Theses & Dissertations

Green fluorescent protein (GFP) was first identified in the jellyfish Aequorea victoria and generated interest due to its ability to noninvasively tag and visualize cells, cellular structures, and cellular proteins. Furthermore, the expression of green fluorescent protein in Esherichia coli cells as a tool for reporting gene expression and promotor activity has become important in the understanding of gene regulation. Expression of the gfp gene was found to vary depending on the strain of E. coli possessing the gfp gene. As a result of this fluctuation in fluorescence, gene expression and hence promotor activity may be difficult to detect or …