The binding of bilirubin to bovine serum albumin has been determined to be a second order process, first order in each reactant. Formation of the bilirubin-albumin complex was observed as an increase in absorbance at 480 nm by stopped flow spectrophotometry. The effect of long chain fatty acid on the binding of bilirubin was investigated at palmitic acid levels of 0 to 7 mol/mol of albumin at 3...

Vitamin A (retinol) is absorbed in the small intestine, stored in liver, and secreted into circulation bound to serum retinol-binding protein (RBP4). Circulating retinol may be taken up by extrahepatic tissues or recycled back to liver multiple times before it is finally metabolized or degraded. Liver exhibits high affinity binding sites for RBP4, but specific receptors have not been identified...

The influence of an excess of retinol on bone formation was studied by using cultures of embryonic-chick calvaria. Retinol decreased collagen synthesis in a dose-dependent manner, non-collagenous protein synthesis being relatively unaffected. Collagen synthesis was significantly inhibited after 24 h of culture with retinol and was progressively decreased, compared with control cultures containi...

Postpartum vitamin A supplementation of mothers and infants is recommended, but the efficacy has been questioned. In this double-blind, placebo-controlled trial, Kenyan mother-infant pairs were randomised to maternal vitamin A (400,000 IU) or placebo <24 h postpartum, and infant vitamin A (100,000 IU) or placebo at 14 weeks. Milk retinol was determined at weeks 4, 14 and 26, and maternal and in...

Disposition kinetics of [(3)H]palmitate and its low-molecular-weight metabolites in perfused rat livers were studied using the multiple-indicator dilution technique, a selective assay for [(3)H]palmitate and its low-molecular-weight metabolites, and several physiologically based pharmacokinetic models. The level of liver fatty acid binding protein (L-FABP), other intrahepatic binding proteins (...

Fat cells isolated from rat epididymal adipose tissue were incubated with albumin-bound [14C]palmitate. Incorporation of 14C into 14CO2 and glycerides was measured. Some evidence is presented to suggest that the exogenous palmitate pool is in isotopic equilibrium with intracellular precursors for these metabolic processes. Precautions were taken to minimize dilution of the exogenous palmitate p...

1. The effects of retinol and retinoic acid supplementation of retinol-deficient rats were studied for a variety of metabolic processes shown to be affected by retinol-deficiency. 2. Retinol-deficient rats were found to have decreased body-weight, liver and testes weights, a degeneration of testicular germinal cells, an increased incorporation of labelled choline into liver and testes phospholi...

C inflammatory bowel diseases (IBD) include ulcerative colitis (UC) and Crohn’s disease (CD), the etiologies of which are not certainly defined, and are hypothesized to be an interaction between environmental, genetic, and immunologic factors.1 Recent studies show a gradually increasing rate of IBD in developing countries in Africa, South America, and Asia.1 There has been a reported increase i...

Rescue of palmitate-induced insulin resistance has been linked with improvements in fatty acid oxidation, but importantly, not always with concurrently altered AMPK or ACC2 phosphorylation. Therefore, we examined the interrelationships among AMPK, ACC2, and fatty acid oxidation under 12 controlled conditions in isolated muscle. Incubation of soleus muscle (0-12 h) did not alter fatty acid oxida...

Introduction 6-monthly paliperidone palmitate features an initiation regimen through 1-monthly or 3-monthly palmitate. Some patients do not have sufficient adherence to treatment and it is necessary at the clinical level start directly with There little experience these alternative initiations this work those that been carried out for 12 months Hospital Universitario Infanta Elena are exposed. ...