Rates
of phosphonate catabolism in lysates of E. coli strain DH5 alpha were determined using proton nuclear magnetic resonance spectroscopy. Whole-cell lysates of the wild-type degraded phosphonoacetate, phenylphosphonate and aminomethylphosphonate. Significant differences in the rates of phosphonate degradation were observed between lysates of wild-type E. coli, and of bacteria transformed with each one of the vectors carrying one of the C. jejuni genes, suggesting that these genes were involved in phosphonate catabolism.”
“Background: Helicobacter pylori is well known for its relationship with the occurrence of several severe gastric diseases. The mechanisms of pathogenesis triggered by H. pylori are less well known. In this study, we report the genome sequence and genomic characterizations of H. pylori GSK2118436 strain HLJ039 that was isolated from a patient with gastric cancer in the Chinese province of Heilongjiang, where there is a high incidence of gastric cancer. To investigate potential genomic features that may be involved in pathogenesis of carcinoma,
the genome was compared to three previously sequenced genomes in this area. Result: We obtained 42 contigs with a total length of 1,611,192 bp and predicted 1,687 coding sequences. Compared to strains isolated from gastritis and ulcers in this area, 10 different regions were identified as being unique for HLJ039; they mainly encoded type II restriction-modification enzyme, SNS-032 in vivo type II m6A methylase, DNA-cytosine methyltransferase, DNA methylase, BI 2536 order and hypothetical proteins. A unique 547-bp fragment sharing 93% identity with a hypothetical protein of Helicobacter cinaedi ATCC BAA-847 was not present in any other previous H. pylori strains. Phylogenetic analysis based on core genome single nucleotide polymorphisms shows that HLJ039 is defined as hspEAsia subgroup, which belongs to the hpEastAsia
group. Conclusion: DNA methylations, variations of the genomic regions involved in restriction and modification systems, are the “hot” regions that may be related to the mechanism of H. pylori-induced gastric cancer. The genome sequence will provide useful information for the deep mining of potential mechanisms related to East Asian gastric cancer.”
“Objective: To assess the rate of cesarean delivery and its indications at public emergency obstetric care (EmOC) hospitals in a district in Bangladesh. Methods: In a retrospective, cross-sectional study, data were extracted from the Safe Motherhood Promotion Project database and operation theater registers for cesarean deliveries at three district and three subdistrict EmOC hospitals in Narsingdi between January 1 and December 31, 2008. Information on cesarean deliveries and their indications, and maternal and neonatal outcomes were analyzed descriptively. Results: Among 3329 deliveries, 1075 (32.3%) occurred by cesarean. The frequency of cesarean delivery ranged from 17.8% (147 of 824 deliveries) to 56.