Publications by authors named "Xue-feng Gao"

Article Synopsis
  • The study investigates the microbiota in the biliary and duodenal systems of patients with primary and recurrent choledocholithiasis (CDL) to understand their relationship with stone formation and recurrence.
  • It involved collecting and analyzing samples from patients undergoing endoscopic retrograde cholangiopancreatography (ERCP), highlighting differences in microbial diversity and abundance between those with CDL and healthy controls.
  • Findings indicate that an imbalance in duodenal microbiota may contribute to the recurrence of CDL, with specific bacteria linked to complications like cholecystectomy, inflammation, and liver issues.
View Article and Find Full Text PDF

Aim: Novel long-acting drugs for type 2 diabetes mellitus may optimize patient compliance and glycaemic control. Exendin-4-IgG4-Fc (E4F4) is a long-acting glucagon-like peptide-1 receptor agonist. This first-in-human study investigated the safety, tolerability, pharmacokinetic, pharmacodynamic and immunogenicity profiles of a single subcutaneous injection of E4F4 in healthy subjects.

View Article and Find Full Text PDF

Purpose: This study aimed to characterize the gut microbiota in obese adolescents from Shenzhen (China), and evaluate influence of gender on BMI-related differences in the gut microbiome.

Methods: Evaluation of physical examination, blood pressure measurement, serological assay and body composition were conducted in 205 adolescent subjects at Shenzhen. Fecal microbiome composition was profiled via high-throughput sequencing of the V3-V4 regions of the 16S rRNA gene.

View Article and Find Full Text PDF

We aimed to explore the effects of the Co-γ irradiated ginseng adventitious root (GAR) with different radiation doses on the hypoglycemic effects of its extract (GARSE) through in vivo and in vitro experiments. The total saponin of GARSE was increased by 4.50% after 5 kGy irradiation, and the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging ability was enhanced by 5.

View Article and Find Full Text PDF

Objective: To explore the regulatory mechanism of inducible nitric oxide synthase (NOS-2) expression related to proliferation of Tca8113 cells.

Methods: RNAi mediated by short hairpin RNAs was utilized to knock down NOS-2, protein kinase C (PKC)-α, PKC-β and PKC-δ. Griess Reagent played a significant role on the detection of NO product after NOS-2 silence.

View Article and Find Full Text PDF

The following four species from Jiangxi Province are new to science: Homoneura (Homoneura) jiangxiensis sp. nov., H.

View Article and Find Full Text PDF

The implant-associated infection remains a serious problem in clinic. A better compromise between the anti-infection property and biocompatibility of bone filling materials is still required. In this work, carboxylated chitosan/silver-hydroxyapatite (CMCS/Ag-HA) hybrid microspheres were fabricated via a facile gas diffusion method.

View Article and Find Full Text PDF

. Despite the great achievements in the treatment of advanced-stage ovarian cancer, it is still a severe condition with an unfavorable 5-year survival rate. Statins have been suggested to reduce the risk of several cancers beyond their cholesterol-lowing effects.

View Article and Find Full Text PDF

Deregulation of epigenetic modification by microRNAs (miRNAs) contributes to the development of estrogen deficiency, a hallmark of the multigenic endocrine disorder polycystic ovary syndrome (PCOS), but its etiology remains unclear. Previous study has pointed to a tight association between miR-320a expression and oocyte development in human follicular fluid. Given that the bi-directional communication existing between cumulus cells (CCs) and follicular fluid is essential for ovarian steroidogenesis and CCs are the main site where estrogen is finally synthesized, it is intriguing to know whether miR-320a have any regulatory roles in this unique cell.

View Article and Find Full Text PDF

Background: Pseudoachalasia is a rare disorder whose presentation strongly resembles idiopathic achalasia.

Case Presentation: Here, we present a case of a 42-year-old female patient with esophageal leiomyoma who was initially diagnosed with achalasia. On endoscopical investigation, however, it became apparent that she had pseudoachalasia as consequence of a leiomyoma at the esophagogastric junction (EGJ).

View Article and Find Full Text PDF

The inhibition of 3-hydroxy-3-methylglutaryl CoA reductase (HMGCR) is considered able to decrease serum cholesterol levels and dramatically reduce the risk for cardiovascular and cerebrovascular diseases. The statins, competitive inhibitors of HMGCR, have been employed to control hypercholesterolemia. But their side effects, especially their safety of long-term administration have attracted great attention.

View Article and Find Full Text PDF

Objective: To investigate the effect of selective phosphodiesterase (PDE) 4 inhibitors on nuclear factor kappa B (NF-κB), tumor necrosis factor-α (TNFα) and interleukin-8 (IL-8) secreted by peripheral blood mononuclear cells (PBMCs) in patients diagnosed as rheumatoid arthritis with interstitial lung disease (RA-ILD).

Methods: PBMCs isolated from 15 healthy volunteers (group A) and 20 patients with untreated active RA-ILD (group B) were cultured in vitro. PBMCs from healthy subjects were considered as normal control.

View Article and Find Full Text PDF
Article Synopsis
  • * Gastroenterologists and oncologists scored higher than other specialists, and recent CRC-related education significantly improved scores.
  • * Common barriers to CRC screening included patients' anxiety about procedures, a lack of awareness of guidelines, and insufficient insurance coverage, highlighting the need for better education and support programs.
View Article and Find Full Text PDF

The enediyne ring chromophore with strong DNA cleavage activity of neocarzinostatin is labile and therefore stabilization by forming the complex (carrying protein+chromophore: holo-NCS). Holo-NCS has gained much attention in clinical use as well as for drug delivery systems, but the chromophore-releasing mechanism to trigger binding to the target DNA with high affinity and producing DNA damage remain unclear. Three possible pathways were initially determined by conventional MD, essential dynamics and essential dynamics sampling.

View Article and Find Full Text PDF

Pyrimidine nucleoside phosphorylase (PYNP) catalyzes the reversible phosphorolysis of pyrimidines in the nucleotide synthesis salvage pathway. We have built a model of a closed active conformation of the three-dimensional structure of PYNP from Bacillus subtilis. Using docking, molecular dynamics, and hybrid quantum-mechanical/molecular-mechanical methods to study the reaction mechanics between PYNP and a substrate, we identified the role of each residue in the active site during the entire catalytic process.

View Article and Find Full Text PDF