The sluggish respiratory response to chondria of alloxan diabetic rats and ADP in liver mitohibernating ground squirrels was overcome by addition of uncouplers of oxidative phosphorylation, suggesting that poor penetration of ADP prevented maximum oxygen consumption. The in uivo depression of adenine nucleotide translocation through the inner mitochondrial membrane was confirmed directly by mea...

We studied mitochondrial structure and intermediates of fatty acid metabolism in mitochondria isolated from ischemic hearts. By electron microscopy, no structural difference was detected between mitochondria isolated from control hearts and from ischemic hearts receiving glucose as the only substrate. However, major differences were observed in mitochondria obtained from control and ischemic he...

The objectives of this study were to 1). examine skeletal muscle fatty acid oxidation in individuals with varying degrees of adiposity and 2). determine the relationship between skeletal muscle fatty acid oxidation and the accumulation of long-chain fatty acyl-CoAs. Muscle was obtained from normal-weight [n = 8; body mass index (BMI) 23.8 +/- 0.58 kg/m(2)], overweight/obese (n = 8; BMI 30.2 +/-...

Short-chain fatty acid (SCFA) biosynthesis is pertinent to production of biofuels, industrial compounds, and pharmaceuticals from renewable resources. To expand on Escherichia coli SCFA products, we previously implemented a coenzyme A (CoA)-dependent pathway that condenses acetyl-CoA to a diverse group of short-chain fatty acyl-CoAs. To increase product titers and reduce premature pathway termi...

Liver X receptor (LXR)α is a nuclear receptor that responds to oxysterols and cholesterol overload by stimulating cholesterol efflux, transport, conversion to bile acids, and excretion. LXRα binds to and is regulated by synthetic (T-0901317, GW3695) and endogenous (oxysterols) ligands. LXRα activity is also modulated by FAs, but the ligand binding specificity of FA and acyl-CoA derivatives for ...

The c.625G>A variant of the short-chain acyl-CoA dehydrogenase (SCAD) gene is considered to confer susceptibility for developing “clinical SCAD deficiency (SCADD)” and appears to be common in the general population. To determine the frequency of the c.625G>A variant in the Netherlands, we analyzed 1036 screening cards of 5to 8-dayold newborns and found 5.5% homozygous and 31.3% heterozygous for...

common disorder of fatty acid oxidation affecting 1 in 13,000 newborns and is inherited as an autosomal recessive disorder. This enzyme deficiency results in the inability to catabolize medium-chain (6-12 carbon molecules) fatty acids for energy utilization. MCAD deficiency often presents in the first two years of life after viral illness or fasting. This inability to break down medium-chain li...