Key determinants of misdiagnosis of tracheobronchial tuberculosis among senile patients in contemporary clinical practice: A retrospective analysis.

Background: Tracheobronchial tuberculosis (TBTB) is a common subtype of pulmonary tuberculosis. Concomitant diseases often obscure the diagnosis of senile TBTB.

Aim: To characterize senile patients with TBTB and to identify the potential causes of misdiagnosis.

Effects of submerged liquid fermentation of WX-17 using okara as sole nutrient source on the composition of a potential probiotic beverage.

This work aims to produce a functional probiotic beverage using okara as the sole nutrient source. Hence, okara was fermented with WX-17 in submerged liquid fermentation and the supernatant was tested. Metabolomic analysis showed that the nutritional profile of the beverage was enhanced after fermentation.

Increasing L-homoserine production in Escherichia coli by engineering the central metabolic pathways.

l-homoserine is an important functional amino acid. Based on the system metabolic engineering strategy, the key genes in the central metabolic pathway of Escherichia coli W3110 were engineered to construct the strain for l-homoserine production. To construct an engineered strain with high yield of l-homoserine, the work was carried out from the following aspects: (1) Disrupt the competitive and degradative pathways of l-homoserine, and the l-homoserine was initially accumulated with a titer of 0.

CRISPR/Cpf1 facilitated large fragment deletion in Saccharomyces cerevisiae.

In this study, we focused on the applicability of CRISPR/Cpf1 in genome simplification of Saccharomyces cerevisiae and established a CRISPR/Cpf1 assisted method for rapid markerless large fragment deletion to facilitate laboratory evolution of geome of S. cerevisiae by rational genetic engineering. This method uses a Cpf1 expression plasmid and a crRNA array expression plasmid.

Metabolomics analysis of Pseudomonas chlororaphis JK12 algicidal activity under aerobic and micro-aerobic culture condition.

Utilization of algicidal bacteria as a biological agent have been receiving significant interest for controlling harmful algal blooms. While various algicidal bacterial strains have been identified, limited studies have explored the influence of bacterial culture conditions on its algicidal activity. Here, the effect of oxygen on the algicidal activity of a novel bacterium JK12, against a model diatom, Phaeodactylum tricornutum (P.