Transcriptome profile of carbon catabolite repression in an efficient l-(+)-lactic acid-producing bacterium Enterococcus mundtii QU25 grown in media with combinations of cellobiose, xylose, and glucose.

Enterococcus mundtii QU25, a non-dairy lactic acid bacterium of the phylum Firmicutes, is capable of simultaneously fermenting cellobiose and xylose, and is described as a promising strain for the industrial production of optically pure l-lactic acid (≥ 99.9%) via homo-fermentation of lignocellulosic hydrolysates. Generally, Firmicutes bacteria show preferential consumption of sugar (usually glucose), termed carbon catabolite repression (CCR), while hampering the catabolism of other sugars.

Paraoxonase 1 lactonase activity and distribution in the HDL subclasses in the cord blood.

Objectives: Paraoxonase 1 (PON1) is a lactonase with important antioxidant and immunoprotective properties. We hypothesized that PON1 lactonase activity, PON1, and high-density lipoprotein (HDL) subclasses distribution are different in neonates than in adults.

Material And Methods: We studied 83 healthy term neonates (34 males and 49 females) who were born by spontaneous, uncomplicated vaginal delivery.

Small-dense low-density lipoproteins are the predominant apoB-100-containing lipoproteins in cord blood.

Objectives: Low density lipoprotein (LDL)-cholesterol level in cord blood is approximately 30%. The aim of our study was to specifically explore LDL apoB distribution across sizes in cord blood serum.

Design And Methods: We studied 83 healthy neonates and 17 paired healthy mothers.

Influence of Ni2+ and Co2+ on methanogenic activity and the amounts of coenzymes involved in methanogenesis.

The requirement of Ni2+ and Co2+ addition on methanogenic activity and the coenzymes involved in methanogenesis were investigated in anaerobic continuous cultivation with synthetic wastewater using acetate as the sole carbon source. Addition of Ni2+ and Co2+ to the synthetic wastewater drastically increased the maximum dilution rate of the cultivation. The concentrations of coenzymes F430 and corrinoids in the biomass increased to 0.

Ischemia-modified albumin levels in cord blood: a case-control study in uncomplicated and complicated deliveries.

Background: In the past few years ischemia modified albumin (IMA) has emerged as a new biomarker of ischemia in the area of monitoring acute coronary syndromes. We hypothesized that reduced blood flow, such as that resulting from vascular compression in complicated labors or placental ischemia, may increase IMA. IMA level in cord blood could then serve as an indicator of fetal hypoxia and fetal tissue ischemia and serve as a biomarker of the severity of these conditions.