نتایج جستجو برای: poly beta hydroxybutyrate
تعداد نتایج: 267464 فیلتر نتایج به سال:
ABSTRACT: Patients with acute renal failure often have a negative energy balance, which promotes metabolic changes predisposing to complications. The objective of this study was evaluate laboratory parameters 30 dogs severe failure, assess their relationship the possibility developing pancreatitis due and correlate these findings degree failure. Serum concentrations urea, creatinine, beta-hydro...
The copolymerization of poly(3-hydroxybutyrate) (PHB) is a promising trend in bioengineering to improve biomedical properties, e.g. biocompatibility, of this biodegradable polymer. We used strain Azotobacter chroococcum 7B, an effective producer of PHB, for biosynthesis of not only homopolymer and its main copolymer, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHB-HV), but also novel terpolym...
Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) were used to prepare microbeads, with diameter ranging from 50 100 µm, by an emulsion-evaporation process. The emulsification-evaporation process enables the formation of spherical polyhydroxyalcanoate beads, crystalline rates similar ones former polymer important surface roughness as compared amorpho...
A novel strategy for micropatterning proteins on the surface of polyhydroxyalkanoate (PHA) biopolymer by microcontact printing (microCP) is described. The substrate binding domain (SBD) of the Pseudomonas stutzeri PHA depolymerase was used as a fusion partner for specifically immobilizing proteins on PHA substrate. Enhanced green fluorescent protein (EGFP) and red fluorescent protein (RFP) fuse...
The production of polyhydroxyalkanoates in plants is an interesting commercial prospect due to lower carbon feedstock costs and capital investments. The production of poly-(3-hydroxybutyrate) has already been successfully demonstrated in plant plastids, and the production of more complex polymers is under investigation. Using a mathematical simulation model this paper outlines the theoretical p...
Ketones can reactivate the production of fetal hemoglobin (HbF) in vitro and in vivo. A reactivation of HbF by ketones, which are generated during starvation, remains largely speculative. Therefore, we investigated HbF in 31 women with anorexia nervosa or bulimia, using both of these as models of intermittent starvation ketosis. For comparison, we also studied 42 female control subjects matched...
1. The respiration of rat liver mitochondria was compared with different substrates, and with sucrose and saline media. The maximum rates of oxidation obtainable from glutamate, oxoglutarate, glutamate+malate, or succinate were higher in the saline (120mm)-tris (20mm) media than in sucrose (250mm)-tris (20mm) mixtures, but the rate with beta-hydroxybutyrate was unchanged. Addition of valinomyci...
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