The influence of enteral nutrition on gut barrier in the post-operative patients with damaged hepatic function.

The safety, rationality and the practicality of enteral nutrition (EN) support in the postoperative patients with damaged hepatic function were investigated and the protective effect of EN on the gut barrier and the clinical implication studied. Seventy-six adult patients whose hepatic function were in Child B or C grade were randomly assigned in EN group (30 cases), total parenteral nutrition (TPN) group (26 cases) and control group (CON, 20 cases). The patients received different nutritional support.

[Study on the biosynthesis of para-aminobenzoic acid by S. sanguis. I. Establishment of a reversed-phase high-performance liquid chromatography].

In order to study the synthesis of para-aminobenzoic acid (PABA) by S. mutans and the role of PABA in the interaction between S. mutans and S.

Preventive effect of glutamine on intestinal barrier dysfunction induced by severe trauma.

Aim: To investigate the mechanism underlying intestinal barrier function damage after severe trauma and the therapeutic effect of glutamine.

Methods: Burned patients, and animal models of severe trauma replicated by hemorrhagic shock combined with endotoxin infusion and burn injury, were included in a serial experiment. Effects of oral glutamine on intestinal barrier function were observed in scalded rats.

The predischarge chromophore in bacteriorhodopsin: a 15N solid-state NMR study of the L photointermediate.

The L550 intermediate in the bacteriorhodopsin (bR) photocycle has drawn much attention with respect to the mechanism of light-driven proton transport because it selectively releases the Schiff base (SB) proton to the extracellular proton channel in the L-->M transition. Here we extend our solid-state NMR studies of bR photocycle intermediates to the L state. Under conditions that stabilize L550, a new SB signal is detected in the 15N NMR spectrum which disappears upon thermal relaxation.

Gene expression from plasmids containing the araBAD promoter at subsaturating inducer concentrations represents mixed populations.

Gene expression from plasmids containing the araBAD promoter can be regulated by the concentration of arabinose in the growth medium. Guzman et al. [Guzman, L.

The use of differential transverse relaxation to detect mobile species in solids.

Delayed acquisition of the proton NMR in selected organic molecular solids (L-alanine, durene, ethyl fumarate, and p-hydroxybenzoic acid) is shown to allow the observation of mobile species in the presence of relatively rigid bulk molecules. The mobility is found to be thermally activated. The combination of the thermally activated motion and magic-angle spinning leads to a fraction of these species moving nearly isotropically on the time scale of the inverse of the homonuclear dipolar splitting.

Evidence for linkage between the swine L blood group and the loci specifying the receptors mediating adhesion of K88 Escherichia coli pilus antigens.

Brush borders or enterocytes obtained from the small intestine of 248 pedigreed pigs were tested by adhesion assay in vitro with enterotoxigenic Escherichia (E.) coli strains, each expressing one of the three K88 pilus variants K88ab, K88ac and K88ad. All pigs were classified as belonging to one of the four adhesion phenotypes: I--K88ab(-), ac(-), ad(-); II--K88ab(-), ac(-), ad(+); III--K88ab(+), ac(+), ad(-); and IV--K88ab(+), ac(+), ad(+).