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Articles 1 - 6 of 6
Full-Text Articles in Medicine and Health Sciences
Let-Dependent Low Dose And Synergistic Inhibition Of Human Angiogenesis By Charged Particles: Validation Of Mirnas That Drive Inhibition, Amber M. Paul, Yen-Ruh Wuu, Burong Hu, Hazeem Okunola, Elizabeth A. Blaber, Margareth Cheng-Campbell, Afshin Beheshti, Peter Grabham
Let-Dependent Low Dose And Synergistic Inhibition Of Human Angiogenesis By Charged Particles: Validation Of Mirnas That Drive Inhibition, Amber M. Paul, Yen-Ruh Wuu, Burong Hu, Hazeem Okunola, Elizabeth A. Blaber, Margareth Cheng-Campbell, Afshin Beheshti, Peter Grabham
Publications
Space radiation inhibits angiogenesis by two mechanisms depending on the linear energy transfer (LET). Using human 3D micro-vessel models, blockage of the early motile stage of angiogenesis was determined to occur after exposure to low LET ions (/AMU), whereas inhibition of the later stages occurs after exposure to high LET ions (>8 KeV/AMU). Strikingly, the combined effect is synergistic, detectible as low as 0.06 Gy making mixed ion space radiation more potent. Candidates for bystander transmission are microRNAs (miRNAs), and analysis on miRNA-seq data from irradiated mice shows that angiogenesis would in theory be downregulated. Further analysis of three …
Purification And Use Of Trna For Enzymatic Post-Translational Addition Of Amino Acids To Proteins., Irem Avcilar-Kucukgoze, Howard Gamper, Ya-Ming Hou, Anna Kashina
Purification And Use Of Trna For Enzymatic Post-Translational Addition Of Amino Acids To Proteins., Irem Avcilar-Kucukgoze, Howard Gamper, Ya-Ming Hou, Anna Kashina
Department of Biochemistry and Molecular Biology Faculty Papers
Post-translational addition of amino acids to proteins by enzymes using aminoacyl-tRNA is an emerging regulatory mechanism. Examples include Arg transfer in eukaryotes, Leu/Phe transfer in bacteria, and tRNA-synthetase-mediated addition of amino acids to Lys side chains. Here, we present a method of purification and use of tRNA for such reactions, focusing on tRNAArg and its use for arginylation. This method can also be used for other tRNA-mediated reactions. For complete details on the use and execution of this protocol, please refer to Avcilar-Kucukgoze et al. (2020).
Dysregulation Of Ryr Calcium Channel Causes The Onset Of Mitochondrial Retrograde Signaling, Anindya Roy Chowdhury, Satish Srinivasan, György Csordás, György Hajnóczky, Narayan G Avadhani
Dysregulation Of Ryr Calcium Channel Causes The Onset Of Mitochondrial Retrograde Signaling, Anindya Roy Chowdhury, Satish Srinivasan, György Csordás, György Hajnóczky, Narayan G Avadhani
Department of Pathology, Anatomy, and Cell Biology Faculty Papers
This study shows that multiple modes of mitochondrial stress generated by partial mtDNA depletion or cytochrome c oxidase disruption cause ryanodine receptor channel (RyR) dysregulation, which instigates the release of Ca2+ in the cytoplasm of C2C12 myoblasts and HCT116 carcinoma cells. We also observed a reciprocal downregulation of IP3R channel activity and reduced mitochondrial uptake of Ca2+. Ryanodine, an RyR antagonist, abrogated the mitochondrial stress-mediated increase in [Ca2+]c and the entire downstream signaling cascades of mitochondrial retrograde signaling. Interestingly, ryanodine also inhibited mitochondrial stress-induced invasive behavior in mtDNA-depleted C2C12 cells and HCT116 carcinoma cells. In addition, co-immunoprecipitation shows reduced FKBP12 …
Sensors And Wearables In Oncology: A Study Of The Barriers And Facilitators To Adoption, Sam Hanna
Sensors And Wearables In Oncology: A Study Of The Barriers And Facilitators To Adoption, Sam Hanna
Doctor of Philosophy in Translational Health Sciences Dissertations
Innovation, although a subject of considerable debate (e.g., Baregheh et al., 2009; Christensen, 1997), can be defined as the introduction and dissemination of a new or a different idea into use or practice that drives impact (Solis and Sinfield, 2014). Many studies and editorials have highlighted the complexity of the United States health system and detailed the slow speed by which innovative ideas materialize into impactful innovations (Continuing America’s leadership (2017); England & Stewart (2007); Kannampallil, Schauer, Cohen & Patel (2011)). While there are many advances in sensor and wearable technologies in this instance, the adoption rate by oncologists has …
A Closer Look At Muscle Breakdown: An Overview Of The Causes, Complications, And Diagnostics Of Rhabdomyolysis, Jamie Holchin
A Closer Look At Muscle Breakdown: An Overview Of The Causes, Complications, And Diagnostics Of Rhabdomyolysis, Jamie Holchin
Senior Honors Theses
Rhabdomyolysis is the rapid breakdown of myocytes in skeletal muscle. This condition can be triggered by a variety of things including crush injury, drugs, prolonged exercise, and venom. Although the causes can vary, the general pathophysiology of rhabdomyolysis is similar. Increased intracellular calcium ion levels instigate the breakdown of cellular and certain organelle membranes of muscle cells. Reactive oxygen species form, ATP is depleted, and the sarcoplasmic reticulum, which regulates muscle contraction, is also damaged. Necrosis ensues, leading to toxic intracellular components spreading throughout the body. Rhabdomyolysis can then lead to several complications including acute renal injury and heart arrhythmias, …
Characterization Of B3galt2 And Heg1 Expression In Dorsal Root Ganglia, Alexander H. Nguyen
Characterization Of B3galt2 And Heg1 Expression In Dorsal Root Ganglia, Alexander H. Nguyen
Browse all Theses and Dissertations
Proprioception provides unique sensory feedback about the body’s orientation in space and this sensation is essential for creating specific motor functions and coordinated movement. During neurogenesis, unique genetic markers are expressed and classified as early, transient/middle, and late markers depending on their timing of expression. This study focuses on the expression patterns of two late markers: Heg1 and B3galt2. We investigated how expression of these two markers respond to peripheral nerve injury (PNI). We cloned and generated riboprobes to detect expression of B3galt2 and Heg1 in DRGs using in situ hybridization after transection of the sciatic nerve. B3galt2 hybridization in …