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dc.contributor.advisorBinas, Bert
dc.creatorAdhikari, Sean
dc.date.accessioned2006-10-30T23:32:14Z
dc.date.available2006-10-30T23:32:14Z
dc.date.created2006-08
dc.date.issued2006-10-30
dc.identifier.urihttp://hdl.handle.net/1969.1/4391
dc.description.abstractHeart-type fatty acid binding protein (H-FABP) is a major fatty acid binding factor in skeletal muscles. Genetic lack of H-FABP severely impairs the esterification and oxidation of exogenous fatty acids in soleus muscles isolated from chow-fed mice (CHOW-solei) and high fat diet-fed mice (HFD-solei), and prevents the HFD-induced accumulation of muscle triglycerides. Here, we examined the impact of H-FABP deficiency on the relationship between fatty acid utilization and glucose oxidation. Glucose oxidation was measured in isolated soleus muscles in the presence or absence of 1 mM palmitate (simple protocol) or in the absence of fatty acid after preincubation with 1 mM palmitate (complex protocol). With the simple protocol, the mutation slightly reduced glucose oxidation in CHOW-muscles, but markedly increased it in HFDmuscles; unexpectedly, this pattern was not altered by the addition of palmitate, which reduced glucose oxidation in both CHOW- and HFD-solei irrespective of the mutation. In the complex protocol, the mutation first inhibited the synthesis and accumulation of triglycerides and then their mobilization; with this protocol, the mutation increased glucose oxidation in both CHOW- and HFD-solei. We conclude: (i) H-FABP mediates a non-acute inhibition of muscle glucose oxidation by fatty acids, likely by enabling both the accumulation and mobilidoes not mediate the acute inhibitory effect of extracellular fatty acids on muscle glucose oxidation; (iii) H-FABP affects muscle glucose oxidation in opposing ways, with inhibition prevailing at high muscle triglyceride contents.zation of a critical mass of muscle triglycerides; (ii) H-FABPen
dc.format.extent277507 bytesen
dc.format.mediumelectronicen
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherTexas A&M Universityen
dc.subjectFABPen
dc.subjectfatty aciden
dc.subjecttriglycerideen
dc.subjectglucoseen
dc.subjectsoleus muscleen
dc.titleGlucose oxidation in heart-type fatty acid binding protein null miceen
dc.typeBooken
dc.typeThesisen
thesis.degree.departmentCouncil of Deansen
thesis.degree.disciplineGeneticsen
thesis.degree.grantorTexas A&M Universityen
thesis.degree.nameMaster of Scienceen
thesis.degree.levelMastersen
dc.contributor.committeeMemberWagner, Gale
dc.contributor.committeeMemberWasser, Jeremy S.
dc.contributor.committeeMemberWu, Guoyao
dc.type.genreElectronic Thesisen
dc.type.materialtexten
dc.format.digitalOriginborn digitalen


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