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Articles 1 - 3 of 3
Full-Text Articles in Lipids
Autotaxin-Lpa Signaling Contributes To Obesity-Induced Insulin Resistance In Muscle And Impairs Mitochondrial Metabolism, Kenneth D'Souza, Carine Nzirorera, Andrew M. Cowie, Geena P. Varghese, Purvi Trivedi, Thomas O. Eichmann, Dipsikha Biswas, Mohamed Touaibia, Andrew J. Morris, Vassilis Aidinis, Daniel A. Kane, Thomas Pulinilkunnil, Petra C. Kienesberger
Autotaxin-Lpa Signaling Contributes To Obesity-Induced Insulin Resistance In Muscle And Impairs Mitochondrial Metabolism, Kenneth D'Souza, Carine Nzirorera, Andrew M. Cowie, Geena P. Varghese, Purvi Trivedi, Thomas O. Eichmann, Dipsikha Biswas, Mohamed Touaibia, Andrew J. Morris, Vassilis Aidinis, Daniel A. Kane, Thomas Pulinilkunnil, Petra C. Kienesberger
Internal Medicine Faculty Publications
Autotaxin (ATX) is an adipokine that generates the bioactive lipid, lysophosphatidic acid (LPA). ATX-LPA signaling has been implicated in diet-induced obesity and systemic insulin resistance. However, it remains unclear whether the ATX-LPA pathway influences insulin function and energy metabolism in target tissues, particularly skeletal muscle, the major site of insulin-stimulated glucose disposal. The objective of this study was to test whether the ATX-LPA pathway impacts tissue insulin signaling and mitochondrial metabolism in skeletal muscle during obesity. Male mice with heterozygous ATX deficiency (ATX+/−) were protected from obesity, systemic insulin resistance, and cardiomyocyte dysfunction following high-fat high-sucrose (HFHS) feeding. …
Impact Of Individual Acute Phase Serum Amyloid A Isoforms On Hdl Metabolism In Mice, Myung-Hee Kim, Maria C. De Beer, Joanne M. Wroblewski, Richard J. Charnigo, Ailing Ji, Nancy R. Webb, Frederick C. De Beer, Deneys R. Van Der Westhuyzen
Impact Of Individual Acute Phase Serum Amyloid A Isoforms On Hdl Metabolism In Mice, Myung-Hee Kim, Maria C. De Beer, Joanne M. Wroblewski, Richard J. Charnigo, Ailing Ji, Nancy R. Webb, Frederick C. De Beer, Deneys R. Van Der Westhuyzen
Internal Medicine Faculty Publications
The acute phase (AP) reactant serum amyloid A (SAA), an HDL apolipoprotein, exhibits pro-inflammatory activities, but its physiological function(s) are poorly understood. Functional differences between SAA1.1 and SAA2.1, the two major SAA isoforms, are unclear. Mice deficient in either isoform were used to investigate plasma isoform effects on HDL structure, composition, and apolipoprotein catabolism. Lack of either isoform did not affect the size of HDL, normally enlarged in the AP, and did not significantly change HDL composition. Plasma clearance rates of HDL apolipoproteins were determined using native HDL particles. The fractional clearance rates (FCRs) of apoA-I, apoA-II, and SAA were …
The Role Of Pxr And Ikkβ Signaling In Cardiometabolic Disease, Robert N. Helsley
The Role Of Pxr And Ikkβ Signaling In Cardiometabolic Disease, Robert N. Helsley
Theses and Dissertations--Pharmacology and Nutritional Sciences
Cardiovascular disease (CVD) is the leading cause of death worldwide and is partially attributed to perturbations in lipid metabolism. Xenobiotics, such as pharmaceutical drugs and environmental chemicals, have been associated with increased risk of CVD in multiple large-scale human population studies, but the underlying mechanisms remain poorly defined. We and others have identified several xenobiotics as potent agonists for the pregnane X receptor (PXR), a nuclear receptor that can be activated by numerous drugs as well as environmental and dietary chemicals. However, the role of PXR in mediating the pathophysiological effects of xenobiotic exposure in humans and animals remains elusive. …