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Antagonistic modulation of spontaneous neural network activities in isolated newborn rat brainstem preparations by opioids and methylxanthines
DownloadFall 2012
Apnea of prematurity is a common problem among the infants born before term pregnancy. Administration of respiratory stimulating drugs methylxanthines is the most frequent therapy, often in combination with the use of intubation. Opioids are used to reduce the pain associated with intubation,...
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Calcium and Vitamin D Intake During Pregnancy and Postpartum in the Alberta Pregnancy Outcomes and Nutrition (APrON) Study
DownloadFall 2016
Calcium and vitamin D are important in maintaining a healthy pregnancy. Low intake/status has been associated with preeclampsia, preterm delivery, lower birth weight, poor fetal skeletal growth, reduced bone mass, and excessive maternal bone loss. Rarely have these nutrients been examined...
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Spring 2021
Hyperphosphatemia, elevated serum phosphate (Pi), is an electrolyte imbalance frequently associated with chronic kidney disease (CKD) and end-stage renal disease (ESRD). There are many negative consequences of hyperphosphatemia including worsening renal function, secondary hyperparathyroidism,...
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Fall 2023
Central to calcium homeostasis and bone health is adequate intestinal calcium absorption. Calcium from the diet is absorbed via either a transcellular or a paracellular pathway both of which are regulated by calciotropic hormones. In cases of low dietary calcium availability, a transcellular...
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Fall 2012
Kidney stones and osteoporosis are prevalent clinical conditions posing a large economic burden to the healthcare system. A common risk factor for both these diseases is hypercalciuria, which is the inappropriate excretion of calcium in urine. Changes in serum calcium levels are detected by the...
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Delineation of molecular mechanisms of intestinal calcium absorption during postnatal development
DownloadFall 2021
Infants and children must maintain a positive calcium balance for appropriate growth. Evidence suggests that adaptations in intestinal absorption of calcium are the major determinant of this net balance. However, the molecular details of the pathways mediating this increased absorption at a young...
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Directed Evolution Approaches for Improved Genetically Encoded Fluorescent Calcium Ion and Voltage Indicators
DownloadFall 2014
Fluorescent proteins (FP) have revolutionized our imaging technologies and facilitated visualization of biochemical and physiological processes occurring in complex biological systems, which has opened up a new and unprecedented era in cell biology. Although FPs mainly serve as passive...
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Effects of dietary phosphorus and calcium levels and phytase supplementation on bone metabolism of egg-laying hens
DownloadFall 2018
The importance of this Ph.D. thesis work is to assess the effects of dietary available phosphorus (avP) and calcium (Ca) levels and phytase supplementation in egg-laying hens and broilers. Two trials were conducted to evaluate the effects of marginal, moderate, and severe reduction in dietary avP...