Teayoun Kim
Tanzania
Research Article
Carnitine Palmitoyltransferase 1b Deficient Mice Develop Severe Insulin Resistance After Prolonged High Fat Diet Feeding
Author(s): Teayoun Kim, John F Moore, Jon D Sharer, Kevin Yang, Philip A Wood and Qinglin YangTeayoun Kim, John F Moore, Jon D Sharer, Kevin Yang, Philip A Wood and Qinglin Yang
Background: Carnitine palmitoyltransferase 1 (CPT1) is the rate-limiting enzyme governing the entry of longchain acyl-CoAs into mitochondria. Treatments with CPT1 inhibitors protect against insulin resistance in short-term preclinical animal studies. We recently reported that mice with muscle isoform CPT1b deficiency demonstrated improved insulin sensitivity when fed a High Fat-Diet (HFD) for up to 5 months. In this follow up study, we further investigated whether the insulin sensitizing effects of partial CPT1b deficiency could be maintained under a prolonged HFD feeding condition.
Methods: We investigated the effects of CPT1b deficiency on HFD-induced insulin resistance using heterozygous CPT1b deficient (Cpt1b+/-) mice compared with Wild Type (WT) mice fed a HFD for a prolonged period of time (7 months). We assessed insulin sensitivity us.. View More»
