Publications by authors named "Xian Ren"

Background: Extra-adrenal myelolipoma is an unusual entity, and endobronchial myelolipoma is rarer, which is often ignored by clinicians, delaying the disease and affecting the prognosis.

Case Presentation: A 71-year-old man with a history of chronic obstructive pulmonary disease (COPD) and type 2 diabetes mellitus, with recurrent fever, cough, and expectoration for more than 2 weeks experienced relief in cough, phlegm reduction, and glycemic control with anti-inflammatory treatment. Further examination revealed that new growths obstructing all lobar bronchi impaired flexible bronchoscope entry.

View Article and Find Full Text PDF

Introduction: We aimed to explore the real-world clinical application value and challenges of metagenomic next-generation sequencing (mNGS) for pulmonary infection diagnosis.

Methods: We retrospectively reviewed the results of mNGS and conventional tests from 140 hospitalized patients with suspected pulmonary infections from January 2019 to December 2020. The sample types included bronchoalveolar lavage fluid, lung tissue by transbronchial lung biopsy, pleural effusion, blood, and bronchial sputum.

View Article and Find Full Text PDF

Objective: To understand the immune molecular landscapes of the two major costimulatory and coinhibitory pathways (B7 and TNFR families) in oral squamous cell carcinoma.

Methods: The B7 family members (CD80, CD86, CD274, ICOSLG, CD276, VTCN1, NCR3LG1, HHLA2 and PDCD1LG2) and TNFR family members (TNFSF4, CD40, CD70, TNFSF9, TNFRSF14 and TNFSF18) were used to analyse the costimulatory and coinhibitory pathway alterations in oral squamous cell carcinoma. The online tools UCSC Xena and cBioPortal were used to derive oral squamous cell carcinoma patients' clinical parameters, mRNA levels, mutations, DNA copy number alterations and methylation levels.

View Article and Find Full Text PDF

Background: The efficacy and safety of dual therapy (dual antiplatelet therapy [DAPT] and warfarin plus single antiplatelet [WS]) versus triple therapy (TT, DAPT plus warfarin) are still debated in patients with atrial fibrillation (AF) undergoing percutaneous coronary intervention (PCI). The purpose of this study was to determine the optimal antithrombotic strategy.

Methods: Electronic databases (PubMed, Embase, Cochrane Library, CNKI and WanFang Data) were searched to retrieve studies on the efficacy and safety of TT vs.

View Article and Find Full Text PDF

Objective: To examine HIV self-testing uptake and its determinates among men who have sex with men (MSM) in Beijing, China.

Methods: A cross-sectional online survey was conducted in Beijing, China in 2016. Participants were users of a popular Chinese gay networking application and had an unknown or negative HIV status.

View Article and Find Full Text PDF

Pulmonary fibrosis is a progressive and fatal disorder. In our previous study, we found that the Yiqihuoxue formula (YQHX), a prescription of Traditional Chinese Medicine, had a curative effect on scleroderma, a typical fibrotic disease. The aim of this study was to determine the key ingredient mediating the therapeutic effects of YQHX and to examine its effect on pulmonary fibrosis, including its mechanism.

View Article and Find Full Text PDF

Salvianolic acid B (Sal B), which is purified from Danshen, is a popular herb extract. Sal B has anti-oxidative, anti-inflammatory, anti-hypoxic, anti-arteriosclerotic and anti-apoptotic properties. This substance can also ameliorate brain injury or neurodegenerative diseases.

View Article and Find Full Text PDF
Article Synopsis
  • Recent studies found that a brain problem called ischemia-reperfusion (I/R) leads to too much glutamate, which can harm nerve cells.
  • Magnesium lithospermate B (MLB) could help protect the brain by improving the way a certain pathway (miR-107/GLT-1) works.
  • In tests on rats, MLB reduced brain injuries and stopped nerve cell death caused by I/R by balancing glutamate levels and fixing the pathway.
View Article and Find Full Text PDF

Salviaolate is a group of depside salts isolated from Danshen (a traditional Chinese herbal medicine), with ≥ 85 % of magnesium lithospermate B. This study aims to investigate whether salviaolate is able to protect the rat brain from ischemia/reperfusion injury and the underlying mechanisms. Rats were subjected to 2 h of cerebral ischemia and 24 h of reperfusion to establish an ischemia/reperfusion injury model.

View Article and Find Full Text PDF

Dysregulation of microRNAs (miRNAs) has been demonstrated to contribute to malignant progression in nasopharyngeal carcinoma (NPC). We previously reported that miR-93 was significantly upregulated in NPC based on a microarray analysis. However, the potential role and mechanism of action of miR-93 in the initiation and progression of NPC remain largely unknown.

View Article and Find Full Text PDF

Purpose: Although there have been numerous studies aimed at determining the effects and safety of early vs. late surgical decompression for traumatic cervical spinal cord injury, controversies still exist regarding the optimal timing of surgery for this serious spinal trauma. This study was conducted to evaluate the effectiveness and safety of early vs.

View Article and Find Full Text PDF

The purpose of the present study was to clarify the association of eNOS 894G/T and ACE I/D genetic polymorphisms with the risk of coronary heart disease (CHD) and to explore the effects of these polymorphisms on the therapeutic efficacy of salvianolate injection in Chinese CHD patients. In all, 153 CHD patients and 198 healthy controls were enrolled in the study. We collected 5 mL peripheral blood for DNA extraction.

View Article and Find Full Text PDF

A sensitive and high-throughput inhibition screening liquid chromatography-mass spectrometry (LC-MS/MS) method was developed and validated for the simultaneous quantification of five probe metabolites (7-hydroxycoumarin, CYP2A6; 4-hydroxytolbutamide, CYP2C9; 4'-hydroxymephenytoin, CYP2C19; α-hydroxymetoprolol, CYP2D6; and 1-hydroxymidazolam, CYP3A4) for in vitro cytochrome P450 activity determination in human liver microsome and recombinant. All the metabolites and the internal standard, tramadol, were separated on a Waters 2695 series liquid chromatograph with a Phenomenex Luna C18 column (150 × 2.0 mm, 5 µm).

View Article and Find Full Text PDF

Objective: To investigate the effect of nicotinamide mononucleotide (NMN) on insulin secretion and gene expressions of pancreatic and duodenal homeobox 1(PDX-1) and forkhead box-containing protein O-1 (FoxO1), which were important transcription factors for insulin secretion.

Methods: Insulin secretion level in RIN-m5f cells was detected by rat insulin ELISA detection kit. The mRNA expression levels of PDX-1 and FoxO1 in RIN-m5f cells were analyzed by real-time PCR.

View Article and Find Full Text PDF

Objectives: To investigate the effects of magnesium lithospermate B (LAB) on intracellular reactive oxygen species (ROS) production induced by high dose of glucose or H(2)O(2), we explored the influences of LAB on the expression of heme oxygenase-1 (HO-1) and nuclear factor E2-related factor-2 (Nrf2) in HEK293T cells after treatment with high dose of glucose.

Materials And Methods: The total nuclear proteins in HEK293T cells were extracted with Cytoplasmic Protein Extraction Kit. The ROS level was determined by flow cytometry.

View Article and Find Full Text PDF

Synopsis of recent research by authors named "Xian Ren"

  • - Xian Ren's research spans diverse areas including respiratory medicine, infectious diseases, and oncology, illustrating a multidimensional approach to healthcare challenges, particularly in diagnosing and treating pulmonary conditions.
  • - Recent work includes a case report on the bronchoscopic treatment of bronchial myelolipomas, emphasizing the importance of recognizing this uncommon entity to improve patient prognosis and treatment outcomes.
  • - Additionally, Xian Ren has explored the application of metagenomic next-generation sequencing for diagnosing pulmonary infections, indicating its potential to enhance clinical decision-making compared to conventional methods.

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionm8lipissmnhglpvl3i1cr4nd2nkufmbd): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once