Publications by authors named "Xiu-zhen Chen"

The increase in multidrug-resistant (MDR) complex (ECC) infections, particularly those resistant to carbapenems, underscores the urgent need for alternative therapies. Phage therapy, with its specific bactericidal action, offers a promising solution. However, there remains a shortage of well-characterized ECC-targeting phages, and dosing and timing optimization for ECC-specific phage cocktails is largely unexplored.

View Article and Find Full Text PDF

Introduction: Vancomycin-resistant (VRE) poses a significant challenge in clinical settings due to its resistance to multiple antibiotics. Phage therapy offers a promising alternative to address this resistance crisis. However, critical gaps remain regarding optimal dosing, therapeutic design, and treatment timing for phage therapy targeting VRE-induced bacteremia.

View Article and Find Full Text PDF

Respiratory syncytial virus (RSV) is a common pathogen that causes respiratory infections in infants and children worldwide, significantly impacting hospitalization rates in this age group. Zinc ions are considered to have broad-spectrum antiviral potential against RNA viruses, including RSV. However, poor organism absorption and low intracellular accumulation of zinc require repeated high-dose supplementation, which may lead to unnecessary toxic side effects.

View Article and Find Full Text PDF

Phage therapy offers a promising approach to combat the growing threat of antimicrobial resistance. Yet, key questions remain regarding dosage, administration routes, combination therapy, and the causes of therapeutic failure. In this study, we focused on a novel lytic phage, ФAb4B, which specifically targeted the Acinetobacter baumannii strains with KL160 capsular polysaccharide, including the pan-drug resistant A.

View Article and Find Full Text PDF

The rise of antimicrobial resistance in ESKAPEE pathogens poses significant clinical challenges, especially in polymicrobial infections. Bacteriophage-derived endolysins offer promise in combating this crisis, but face practical hurdles. Our study focuses on engineering endolysins from a phage, fusing them with ApoE23 and COG133 peptides.

View Article and Find Full Text PDF

Antimicrobial peptides (AMPs) hold promise as alternatives to combat bacterial infections, addressing the urgent global threat of antibiotic resistance. COG1410, a synthetic peptide derived from apolipoprotein E, has exhibited potent antimicrobial properties against various bacterial strains, including . However, our study reveals a previously unknown resistance mechanism developed by against COG1410 involving ClpC.

View Article and Find Full Text PDF

To study the SSR loci information and develop molecular markers, a total of 43 683 Unigenes in transcriptome of Andrographis paniculata were used to explore SSR. The distribution frequency of SSR and the basic characteristics of repeat motifs were analyzed using MicroSAtellite software, SSR primers were designed by Primer 3.0 software and then validated by PCR.

View Article and Find Full Text PDF

Objectives: Eukaryotic mitogen-activated protein kinases (MAPKs) play crucial roles in transducing environmental and developmental signals inside the cell and regulating gene expression, however, the roles of MAPKs remain largely unknown in Trichoderma reesei.

Results: T. reesei ime2 (TrIme2) encodes an Ime2-like MAPK in T.

View Article and Find Full Text PDF

Trichoderma reesei (teleomorph Hypocrea jecorina) is an industrially important filamentous fungus for glycoside hydrolases production, with its xylanolytic enzymes widely applied in many areas. However, the molecular mechanisms underlying xylanase expression are still insufficiently understood. In particular, the effect of sugar transporter on the induction of xylanase expression is unclear.

View Article and Find Full Text PDF

Trichoderma reesei is thought to be a promising recombinant host for the production and secretion of complex proteins due to its ability to secrete large amounts of proteins. In this study we identified a functional N-acetyl-β-glucosaminidase (NAGase) gene Nag1 in T. reesei.

View Article and Find Full Text PDF

Aim: To investigate the diagnostic performance of multi-detector computed tomography (MDCT) in detecting biliary complications after orthotopic liver transplantation (OLT).

Methods: Eighty-three consecutive OLT recipients, who presented with clinical or biochemical signs of biliary complications, underwent MDCT examination. Two experienced radiologists assessed MDCT images in consensus to determine biliary complications.

View Article and Find Full Text PDF

Background: Differentiation of anomalous systemic artery to the left lower lobe (ASALLL) from pulmonary sequestration (PS) is essential, as ASALLL can be corrected by anastomosis, embolization, or ligation of the anomalous artery.

Purpose: To compare computed tomography (CT) findings of ASALLL and PS in the left lower lobe (LLL).

Materials And Methods: This study included 16 patients with ASALLL and 25 patients with PS in LLL confirmed by operative and pathologic findings.

View Article and Find Full Text PDF

Objective: To analyze the magnetic resonance imaging (MRI) findings of lesions in the limbic system related structures in general paresis of insane (GPI) patients so as to explore its pathogenesis and provide a new MRI diagnostic method.

Methods: The clinical data and MRI findings of lesions in the limbic system related structures were retrospectively analyzed for a total of 31 GPI patients. The parameters were volume and signal abnormality.

View Article and Find Full Text PDF

Objective: To evaluate initial application of coronary images from 320-slice dynamic volume MDCT (Toshiba Aquilion One dynamic volume MDCT).

Methods: 180 consecutive patients with suspected coronary artery disease were studied by ECG-gated 320-slice dynamic volume MDCT with non-helical scanning mode in our hospital from November, 2008 to January, 2009. 14 patients also underwent conventional coronary angiography.

View Article and Find Full Text PDF

By a combination of freezing/thawing/ proteinase K-based method and SDS/high-salt/heating treatment, the mixed environmental genomic DNA was isolated directly from a hot spring soil in Tengchong, Yunnan, China. With this method, The DNA yield was up to 1 - 2 microg/g soil. After purification with the Wizard DNA clean up system (Promega, Madison, Wis), the mixed genomic DNA was partially digested with restriction enzyme Pst I.

View Article and Find Full Text PDF