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Skip to Search Results- 20Chan, Catherine B.
- 12Bell, Rhonda C.
- 7Wheeler, Michael B.
- 4Koshkin, Vasilij
- 3Field, Catherine J.
- 3McCargar, Linda J.
- 6Bioenergetics
- 6Metabolism
- 3Diabetes
- 3Physical Activity
- 2Adipose Tissue
- 2Advanced Glycation End Products
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Estimation of choline intake from 24 h dietary intake recalls and contribution of egg and milk consumption to intake among pregnant and lactating women in Alberta
Download2014
Jacobs, Rene L., Field, Catherine J., Subhan, Fatheema B., Bell, Rhonda C., Lewis, Erin D., McCargar, Linda J., Curtis, Jonathan M.
Despite recommendations for higher choline intakes during pregnancy and lactation, there is limited research regarding maternal intake during these important periods. In the present study, we estimated dietary choline intake during pregnancy and lactation in a population of Albertan women and the...
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Expression of PPARα modifies fatty acid effects on insulin secretion in uncoupling protein-2 knockout mice
Download2007
Fatehi-Hassanabad, Zahra, Chan, Catherine B.
Aims/hypothesis In uncoupling protein-2 (UCP2) knockout (KO) mice, protection of beta cells from fatty acid exposure is dependent upon transcriptional events mediated by peroxisome proliferator-activated receptor-α (PPARα). Methods PPARα expression was reduced in isolated islets from UCP2KO and...
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2004
Zhang, Chen-Yu, Chan, Catherine B., Koshkin, Vasilij, Wheeler, Michael B., Lowell, Bradford B., Joseph, Jamie W., Saleh, Monique C., Sivitz, William I.
Chronic exposure to elevated free fatty acids (lipotoxicity) induces uncoupling protein (UCP2) in the pancreatic β-cell, and therefore a causal link between UCP2 and β-cell defects associated with obesity may exist. Recently, we showed that lipid treatment in vivo and in vitro in UCP2(–/–)...
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Glucose-regulated glucagon secretion requires insulin receptor expression in pancreatic α-cells
Download2005
Chan, Catherine B., Wheeler, Michael B., Asghar, Zeenat, Diao, Jingyu
The insulin receptor (IR) and its signaling appear to be essential for insulin secretion from pancreatic β-cells. However, much less is known about the role of the IR in α-cells. To assess the role of the IR in glucagon and insulin secretion, we engineered adeno-viruses for high efficiency small...
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2011-01-01
Rowe, David A., Tudor-Locke, Catrine, Hatano, Yoshiro, Schmidt, Michael D., Gardner, Andrew W., Croteau, Karen A., Ewald, Ben, Craig, Cora L., Rogers, Laura Q., Lutes, Lesley D., Bell, Rhonda C., Aoyagi, Yukitoshi, Ramirez-Marrero, Farah A., Tully, Mark A., Matsudo, Sandra M., Blair, Steven N., De Bourdeaudhuij, Ilse
Older adults and special populations (living with disability and/or chronic illness that may limit mobility and/or physical endurance) can benefit from practicing a more physically active lifestyle, typically by increasing ambulatory activity. Step counting devices (accelerometers and pedometers)...
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IL-6 indirectly modulates the induction of glyceroneogenic enzmes in adipose tissue during exercise
Download2012
Wan, Zhongxiao, Beaudoin, Marie-Soleil, Castellani, Laura, Wright, David C., Ritchie, Ian, Chan, Catherine B.
Background Glyceroneogenesis is an important step in the control of fatty acid re-esterification with PEPCK and PDK4 being identified as key enzymes in this process. We have previously shown that glyceroneogenic enzymes such as PDK4 are rapidly induced in white adipose tissue during exercise....
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2012
Wan, Zhongxiao, MacDonald, Tara, Wright, David C., Holloway, Graham P., Chan, Catherine B., Perry, Christopher G.
Background Adipose tissue mitochondria have been implicated as key mediators of systemic metabolism. We have shown that IL-6 activates AMPK, a mediator of mitochondrial biogenesis, in adipose tissue; however, IL-6−/− mice fed a high fat diet have been reported to develop insulin resistance. These...
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Increased rate of fatty acid uptake and plasmalemmal fatty acid transporters in obese Zucker rats
Download2001
Arumugam, Yoga, Luiken, Joost J. F. P., Dyck, David J., Bonen, Arend, Tandon, Narendra N., Pelsers, Maurice M. L., Bell, Rhonda C., Turcotte, Lorraine P., Glatz, Jan F. C.
Giant vesicles were used to study the rates of uptake of long-chain fatty acids by heart, skeletal muscle, and adipose tissue of obese and lean Zucker rats. With obesity there was an increase in vesicular fatty acid uptake of 1.8-fold in heart, muscle and adipose tissue. In some tissues only...
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Inhibition of Kv2.1 voltage-dependent K+ channels in pancreatic ß-cells enhances glucose-dependent insulin secretion
Download2002
Chan, Catherine B., Wang, Jianli, Sakellaropoulos, George, Tsushima, Robert G., Joseph, Jamie W., Smukler, Simon R., Sewing, Sabine, Saleh, Monique C., Wang, Jing, Salapatek, Anne Marie F., Wheeler, Michael B., MacDonald, Patrick E.
Voltage-dependent (Kv) outward K+ currents repolarize β-cell action potentials during a glucose stimulus to limit Ca2+ entry and insulin secretion. Dominant-negative “knockout” of Kv2 family channels enhances glucose-stimulated insulin secretion. Here we show that a putative Kv2.1 antagonist...
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Isoferulic acid prevents methylglyoxal-induced protein glycation and DNA damage by free radical scavenging activity
Download2015
Sompong, Weerachat, Suantawee, Tanyawan, Thilavech, Thavaree, Adisakwattana, Sirichai, Meeprom, Aramsri, Chan, Catherine B.
Background Isoferulic acid (IFA), a naturally occurring cinnamic acid derivative, is a main active ingredient of the rhizoma of Cimicifuga dahurica. It has been shown various pharmacological activities. The aim of the study was to investigate the effect of IFA against MG-induced protein glycation...