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Local Delivery Of Growth Stimulators For Diabetic Foot Ulcers: A Preliminary In Vitro Study, Jennifer Leigh Baldwin
Local Delivery Of Growth Stimulators For Diabetic Foot Ulcers: A Preliminary In Vitro Study, Jennifer Leigh Baldwin
Electronic Theses and Dissertations
Diabetic foot ulcers affect approximately 15% of the almost 20.8 million people with diabetes mellitus, costing approximately $10.9 billion annually. Diabetic foot ulcers are particularly difficult to treat due to neuropathy and healing deficiencies. The objective of this in vitro study was to measure the effects of adenosine and glutathione on fibroblast proliferation and collagen synthesis while improving the availability of these compounds at the wound site with the use of a chitosan sponge as a localized delivery vehicle. This study found adenosine (500µM) and glutathione (250µM) enhanced fibroblast proliferation by approximately 100% and 46% increase as compared to untreated …
Prevalence Of And Risk Factors For Intraoperative Non-Euglycemia Events In Premature Neonates >2500 Grams, Zulay Ritrosky
Prevalence Of And Risk Factors For Intraoperative Non-Euglycemia Events In Premature Neonates >2500 Grams, Zulay Ritrosky
Electronic Theses and Dissertations
This study examined the rates and risks of premature neonates >2500grams developing intraoperative non-euglycemia events (IONEE). A retrospective chart review of 26 premature neonates >2500 grams who underwent surgical procedures between January 1 and December 31, 2009 was conducted. Statistical analysis was done using Chi square and t-tests. Ten of the 26 subjects (38%) experienced an IONEE. Hyperglycemia was the primary IONEE that was noted in the neonates. (Mean: 143.19; sd: 56.041) Length of surgery was significantly longer in those premature neonates with IONEE than those with euglycemia (71.7 0± 27.03 vs. 45.62 ± 17.98 minutes). All IONEE subjects received …
Alpha-Msh Regulated Cell Signaling In Pancreatic Alpha Cells, Liang Liang
Alpha-Msh Regulated Cell Signaling In Pancreatic Alpha Cells, Liang Liang
Electronic Theses and Dissertations
Peripheral injection of α-MSH promotes glucagon secretion in POMC knockout mice, suggesting the role of α-MSH in regulation of pancreatic α cells. However, the underlying mechanisms remain unknown. This study investigated the stimulatory effect of α-MSH on mice pancreatic α cell line αTC1-6 cells in cell signaling pathway as well as glucagon secretion. In normal level of glucose, application of α-MSH stimulated Ltype Ca2+ current induced Ca2+ induced Ca2+ release (CICR) and membrane hyperpolarization. Increase of [cAMP]c was also observed when α-MSH was applied with IBMX. Acute hypoglycemia-induced CICR via N- and L-type Ca2+ channels was overridden by typical α-MSH …