The effect of diet on the desaturation of linoleic acid to y-linolenic acid by liver microsomal preparations, on blood glucose and insulin levels, and on activities of glucokinase, hexokinase, pyruvate kinase, and a-glycerophosphate dehydrogenase have been studied. The female rats used in these experiments were maintained on one of the following dietary regimes: (a) fasted, (6) fasted for 96 hr...

It is expected that use of adult multipotential mesenchymal stem cells (MSCs) for bone tissue engineering (TE) will lead to improvement of TE products. Prior to clinical application, biocompatibility of bone TE products need to be tested in vitro and in vivo. In orthopedic research, sheep are a well-accepted model due to similarities with humans and are assumed to be predictive of human outcome...

1. Loading the isolated perfused liver from well-fed rats with xylitol (20mm) caused a depletion of adenine nucleotides and P(i) and an accumulation of alpha-glycerophosphate. The ATP content fell to 66% of the control value after 10min and to 32% after 80min. The ADP and AMP contents also fell. After 80min 63% of the total adenine nucleotides and 59% of the P(i) had been lost. 2. The alpha-gly...

The effects of diet on the rate of triglyceride synthesis by rat liver homogenates was measured. Changes in triglyceride synthesis were correlated with the level of activity of L-alpha-glycerophosphate acyltransferase, the enzyme catalyzing the first specific reaction in hepatic glycerolipid synthesis. Fasting for 48-72 hr depressed the synthesis of triglyceride from L-alpha-glycerophosphate. H...

Background Limited phosphate (Pi) reserves and the economic adverse environmental impacts of excessive application mineral fertilizers in soils are alarming. Therefore, use organic phosphorus (Porg) is suggested to reduce reliance on chemical fertilizers. Aims There currently little information regarding accessibility Porg N2 fixation plants. present study aims address question what extent subs...