Publications by authors named "Zhuan Liao"

Aims: ERCP training should adapt to the rapid development of ERCP technology and indications. China has a large population and vast land area, but ERCP training resources are insufficient. To make effective use of scarce ERCP training resources, the Standardized Training for ERCP Procedure (STEP) program was launched as a pilot trial.

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Objectives: Associations of ABO blood group specifying transferases A/B (ABO) and fucosyltransferase 2 (FUT2) with CP remain inconclusive. We aimed to comprehensively investigate the associations by Chinese sequencing cohorts and external cohorts.

Methods: First, we analyzed the distributions of ABO blood groups and FUT2 status, along with lead single nucleotide polymorphisms (SNPs) at ABO (rs8176693 C/T) and FUT2 (rs632111 A/G) gene loci in Chinese low-coverage whole-genome sequencing discovery cohort.

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Article Synopsis
  • A study compared the effectiveness and safety of basket versus balloon catheters for removing pancreatic duct stones during ERCP in patients with chronic pancreatitis.
  • Results showed similar overall stone clearance rates for both catheters (around 86%), but the balloon catheter performed better for larger stones (≥ 2 cm).
  • No significant differences in adverse event rates, pain relief, or quality of life were found between the two catheter groups after one year of follow-up.
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Background And Objectives: EUS is an important modality for diagnosis and assessment of gastrointestinal (GI) subepithelial lesions. However, EUS is invasive and operator-dependent and requires sedation in most cases. The newly developed ultrasound capsule endoscopy (USCE) system, with both white-light and ultrasound imaging modalities, is a minimally invasive method for superficial and submucosal imaging of the esophagus.

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Chronic pancreatitis (CP) is a complex disease with genetic and environmental factors at play. Through trio exome sequencing, a de novo SEC16A frameshift variant in a Chinese teenage CP patient is identified. Subsequent targeted next-generation sequencing of the SEC16A gene in 1,061 Chinese CP patients and 1,196 controls reveals a higher allele frequency of rare nonsynonymous SEC16A variants in patients (4.

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AR495 is a widely used probiotic for the treatment of various digestive diseases, including irritable bowel syndrome (IBS). However, the specific mechanisms of AR495 in alleviating IBS remain unclear. Abnormal intestinal tryptophan metabolism can cause disordered immune responses, gastrointestinal peristalsis, digestion and sensation, which is closely related to IBS pathogenesis.

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Background & Aims: Mutations in genes, including serine protease inhibitor Kazal-type 1 (SPINK1), influence disease progression following sentinel acute pancreatitis event (SAPE) attacks. SPINK1 c.194+2T > C intron mutation is one of the main mutants of SPINK1,which leads to the impairment of SPINK1 function by causing skipping of exon 3.

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Article Synopsis
  • Researchers are studying a way to help people with chronic pancreatitis (CP), which currently has no cure.
  • They used a special virus (AAV8) to deliver a treatment directly to the pancreas in mice, which helped lessen symptoms and speed up recovery from the disease.
  • The results showed that this treatment was safe and worked well, making it a hopeful option for stopping or treating CP in the future.
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Previous studies have observed relationships between pancreatitis and gut microbiota; however, specific changes in gut microbiota abundance and underlying mechanisms in pancreatitis remain unknown. Metabolites are important for gut microbiota to fulfil their biological functions, and changes in the metabolic and immune environments are closely linked to changes in microbiota abundance. We aimed to clarify the mechanisms of gut-pancreas interactions and explore the possible role of metabolites and the immune system.

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Background & Aims: Protease-sensitive PNLIP variants were recently associated with chronic pancreatitis (CP) in European populations. The pathological mechanism yet remains elusive. Herein, we performed a comprehensive genetic and functional analysis of PNLIP variants found in a large Chinese cohort, aiming to further unravel the enigmatic association of PNLIP variants with CP.

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  • The study aimed to assess the effectiveness and safety of magnetically guided capsule endoscopy with a detachable string (ds-MCE) for identifying and evaluating oesophagogastric varices in adults with cirrhosis.
  • Conducted across 14 medical centers in China, the study involved 607 participants who underwent both ds-MCE and oesophagogastroduodenoscopy (OGD) to compare accuracy.
  • The results showed that ds-MCE had high sensitivity (97.5%) and specificity (97.8%) for detecting oesophagogastric varices, and it effectively identified high-risk variants with diagnostic accuracy rates exceeding 96%. *
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Background: Single-nucleotide variants (SNVs) within gene coding sequences can significantly impact pre-mRNA splicing, bearing profound implications for pathogenic mechanisms and precision medicine. In this study, we aim to harness the well-established full-length gene splicing assay (FLGSA) in conjunction with SpliceAI to prospectively interpret the splicing effects of all potential coding SNVs within the four-exon SPINK1 gene, a gene associated with chronic pancreatitis.

Results: Our study began with a retrospective analysis of 27 SPINK1 coding SNVs previously assessed using FLGSA, proceeded with a prospective analysis of 35 new FLGSA-tested SPINK1 coding SNVs, followed by data extrapolation, and ended with further validation.

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  • A study was conducted to understand how genetic factors and clinical features affect pregnancy outcomes in Chinese women with chronic pancreatitis (CP), focusing on specific gene mutations (SPINK1, PRSS1, CTRC, CFTR).
  • Out of 160 female CP patients, 59.4% had pathogenic gene mutations, showing that those with mutations experienced higher rates of adverse pregnancy outcomes such as preterm delivery and abortion compared to those without mutations.
  • The research concluded that mutations in CP-susceptibility genes, particularly in SPINK1, are significant risk factors for adverse pregnancy outcomes, highlighting the need for careful monitoring of affected patients during pregnancy.
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Importance: Gastrointestinal injury progression induced by antiplatelet therapy in patients after percutaneous coronary intervention (PCI) has not been well studied.

Objective: To assess the association of aspirin, clopidogrel, and their combination with gastrointestinal injury progression among patients without high bleeding risk after PCI.

Design, Setting, And Participants: This secondary analysis assessed data from the Optimal Antiplatelet Therapy for Prevention of Gastrointestinal Injury Evaluated by ANKON Magnetically Controlled Capsule Endoscopy (OPT-PEACE) double-masked, placebo-controlled, multicenter randomized clinical trial.

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  • PRSS1 is a gene linked to chronic pancreatitis, and its variants can be difficult to classify due to differences in their effects on the enzyme's function.
  • The study analyzed 100 variants of the PRSS1 gene, categorizing them based on genetic impact and clinical significance using a new classification system.
  • Findings indicate that many PRSS1 variants can be classified as pathogenic, likely pathogenic, or benign, which could help improve how these variants are reported in medical databases.
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  • The study evaluated the use of a new magnet-controlled capsule endoscopy (MCCE) system to diagnose acute upper gastrointestinal bleeding (AUGIB) in patients.
  • Out of 100 patients, MCCE successfully identified a high diagnostic yield of 95.8%, finding various lesions in the esophagus, stomach, duodenum, and small bowel.
  • The results suggest that MCCE is a valuable first diagnostic tool for stable AUGIB patients, but esophagogastroduodenoscopy (EGD) is recommended for those with insufficient duodenal visualization.
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Background And Aims: EUS is essential in diagnosing and staging of esophageal subepithelial lesions and tumors. However, EUS is invasive, relies on highly trained endoscopists, and typically requires sedation. The newly developed US capsule endoscopy (USCE), which incorporates both white-light and US imaging modalities into a tethered capsule, is a minimally invasive method for obtaining superficial and submucosal information of the esophagus.

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With the development and generalization of endoscopic technology and screening, clinical application of magnetically controlled capsule gastroscopy (MCCG) has been increasing. In recent years, various types of MCCG are used globally. Therefore, establishing relevant guidelines on MCCG is of great significance.

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  • The study explored the genetic factors influencing pancreatitis risk using Mendelian randomization, focusing on 30 different modifiable environmental risk factors.
  • Key findings linked smoking, cholelithiasis (gallstones), and inflammatory bowel disease (IBD) to an increased risk of acute pancreatitis (AP), while obesity traits were less significant when factoring in gallstones.
  • Alcohol consumption showed a strong association with both acute and chronic pancreatitis, indicating that genetic predisposition to drinking significantly increases the risk of developing these conditions.
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Background: Probiotics have been deemed multipotent and unprecedentedly applied in the health field recently. However, there are challenges in promoting credible and reliable resources while avoiding misinformation regarding probiotics for the public.

Methods: This study analysed 400 eligible probiotic-related videos selected from YouTube, and the three most popular video-sharing platforms (Bilibili, Weibo and TikTok) in China.

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  • Researchers developed a new type of upper and mid gastrointestinal capsule endoscopy using a modified magnetic control method to improve observation of the GI tract.
  • *In a study with 30 patients, the system achieved high detection rates for key areas in the GI tract and had a complete examination rate of 95.45%.
  • *The capsule endoscopy was well received by patients with minimal discomfort, no adverse events, and a high diagnostic yield, suggesting its potential for use in detecting GI bleeding.
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  • Dietary habits can influence the risk of pancreatitis, and a study used Mendelian randomization to explore these relationships using data from UK Biobank and FinnGen consortium.
  • Higher alcohol consumption was linked to increased chances of acute and chronic pancreatitis, while increased dried and fresh fruit intake reduced the risk of these conditions.
  • Conversely, higher intake of pork and processed meats was associated with a significantly increased risk of pancreatitis, indicating that dietary choices could impact prevention strategies for the disease.
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Long-term exposure to adverse life events that provoke acute or chronic psychological stress (hereinafter "stress") can negatively affect physical health and even increase susceptibility to psychological illnesses, such as anxiety and depression. As a part of the hypothalamic-pituitary-adrenal axis, corticotropin-releasing factor (CRF) released from the hypothalamus is primarily responsible for the stress response. Typically, CRF disrupts the gastrointestinal system and leads to gut microbiota dysbiosis, thereby increasing risk of functional gastrointestinal diseases, such as irritable bowel syndrome.

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