Publications by authors named "Han Mo Chiu"

Gut microbial metabolism of L-carnitine, which leads to the production of detrimental trimethylamine N-oxide (TMAO), offers a plausible link between red meat consumption and cardiovascular risks. Several microbial genes, including , the operon, and the recently identified gene cluster, have been implicated in the conversion of dietary L-carnitine into TMA(O). However, the key microbial genes and associated gut microbes involved in this pathway have not been fully explored.

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Colonoscopy has been widely regarded as the gold standard for its high diagnostic accuracy and preventive potential. However, its invasive nature, high cost, and suboptimal participation rates limit its utility at the population level. Non-invasive screening tests, notably the fecal immunochemical test (FIT) and multitarget stool DNA tests, present promising alternatives that may improve screening participation and reduce barriers to participation.

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Background: The fecal immunochemical test for hemoglobin (FIT) is now a widely used non-invasive test in population-based organized screening programs for colorectal neoplasia. The positivity thresholds of tests currently in use are based on the fecal hemoglobin concentration (f-Hb), but the rationale for the adopted thresholds are not well documented. To understand current global usage of FIT in screening programs we conducted an international survey of the brands of FIT used, the f-Hb positivity threshold applied and the rationale for the choice.

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Effective screening is essential to reducing CRC incidence and mortality by detecting the disease at early stages and identifying non-invasive precursors. While colonoscopy remains the most sensitive modality to visualize and remove neoplastic lesions thereby reducing CRC and the related death, its high cost and invasive nature limit its widespread use. The fecal immunochemical test (FIT), which offers a non-invasive alternative with higher public acceptance and comparable cost-effectiveness to colonoscopy, has become the preferred screening method in many regions.

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Importance: Effects of screening for Helicobacter pylori on gastric cancer incidence and mortality are unknown.

Objective: To evaluate the effects of an invitation to screen for H pylori on gastric cancer incidence and mortality.

Design, Setting, And Participants: A pragmatic randomized clinical trial of residents aged 50 to 69 years in Changhua County, Taiwan, eligible for biennial fecal immunochemical tests (FIT) for colon cancer screening.

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Article Synopsis
  • An artificial intelligence-based system (AI-CRS) was developed to verify cecal intubation during colonoscopy and assess its effect on adenoma detection.
  • After implementing AI-CRS from 2019 to 2022, there were significant increases in adenoma detection rates (ADR) and advanced adenoma detection rates (AADR), even though the overall cecal intubation rate (CIR) remained stable.
  • The study concluded that using AI for post hoc verification improved the detection of adenomas during screening colonoscopies, highlighting the potential of AI in enhancing colorectal cancer screening quality.
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Background And Aims: Early-onset colorectal cancer (CRC) is increasing globally. While the United States have lowered the age of initiation of screening to 45 years, other countries still start screening at 50 years of age. In Taiwan, the incidence of CRC has declined in 55- to 74-year-olds after the initiation of screening, but still increased in those 50-54 years of age, potentially due to rising precancerous lesion incidence in 40- to 49-year-olds.

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Article Synopsis
  • - Significant advances in managing large laterally spreading tumors (LSTs) in colorectal polyps exist, but management practices vary globally, prompting the need for an international consensus.
  • - A Delphi study involving 43 experts from 18 countries led to 42 statements reaching consensus regarding training, evaluation, resection techniques, and post-resection care for LSTs.
  • - The resulting expert consensus aims to standardize practices and provide clear guidance for evaluating, resecting, and following up on LSTs worldwide.
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  • The study investigates how gastroenterologists and gastrointestinal surgeons perceive and trust AI technologies used in colonoscopies, particularly for detecting and managing colorectal polyps.
  • Researchers conducted a web-based questionnaire with 165 participants across five Asia-Pacific regions to assess their demographics, AI usage intentions, and perceived risks and acceptance.
  • Findings indicate a strong interest in using AI for diagnosis among gastroenterologists, although there are varying levels of concern regarding its risks and acceptance in practice.*
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Background: Altered gut metabolites, especially short-chain fatty acids (SCFAs), in feces and plasma are observed in patients with Parkinson's disease (PD).

Objective: We aimed to investigate the colonic expression of two SCFA receptors, free fatty acid receptor (FFAR)2 and FFAR3, and gut barrier integrity in patients with PD and correlations with clinical severity.

Methods: In this retrospective study, colonic biopsy specimens were collected from 37 PD patients and 34 unaffected controls.

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Article Synopsis
  • Sessile serrated lesions (SSLs) have a 4.0% prevalence in Asia, with no significant differences among sex or age groups.
  • This study analyzed data from 2,898 participants to identify factors that influence SSL detection, including the use of linked-color imaging (LCI), experienced endoscopists, and a transparent cap.
  • Key findings indicate that the detection of SSLs improves with better imaging technology, more skilled endoscopists, longer procedure times, and other related factors.
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Introduction: Concerns regarding bleeding remain in cold snare polypectomy (CSP) for small pedunculated (0-Ip) polyps. The aim of this study was to compare the risk of CSP and hot snare polypectomy (HSP) for such lesions.

Methods: Data on 0-Ip colorectal polyps ≤10 mm were extracted from a large, pragmatic, randomized trial.

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Article Synopsis
  • A study was conducted to explore personalized colorectal cancer (CRC) screening using fecal hemoglobin (f-Hb) levels to determine screening intervals, aiming to reduce the number of fecal immunochemical tests (FIT) and colonoscopies without losing effectiveness compared to standard biennial screening.
  • The research analyzed data from over 3.5 million participants in a Taiwanese FIT screening program between 2004 and 2014, following them until 2019 to assess CRC outcomes and mortality.
  • Findings suggest that personalized f-Hb-guided screening could efficiently manage CRC screenings by tailoring intervals based on individual risk, potentially leading to fewer tests while maintaining similar effectiveness in detecting colorectal neoplasia.
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Introduction: We investigated coexisting lesion types in patients with invasive colorectal cancer (CRC) in a multinational study for comprehending the adenoma-carcinoma and serrated pathway about the development of CRC.

Methods: We retrospectively reviewed 3,050 patients enrolled in the international randomized controlled trial (ATLAS study) to evaluate the colorectal polyp detection performance of image-enhanced endoscopy in 11 institutions in four Asian countries/regions. In the current study, as a subgroup analysis of the ATLAS study, 92 CRC patients were extracted and compared to 2,958 patients without CRC to examine the effects of age, sex, and coexisting lesion types (high-grade adenoma [HGA], low-grade adenoma with villous component [LGAV], 10 adenomas, adenoma ≥10 mm, sessile serrated lesions [SSLs], and SSLs with dysplasia [SSLD]).

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Background And Aim: Linked color imaging (LCI) is an image-enhanced endoscopy technique that accentuates the color difference between red and white, potentially improving the adenoma detection rate (ADR). However, it remains unclear whether LCI performance in detecting colorectal lesions differs based on endoscopists' experience levels. We aimed to evaluate the differences in LCI efficacy based on the experience levels of endoscopists by conducting an exploratory analysis.

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Study Objectives: The relationship between obstructive sleep apnea (OSA) and gastroesophageal reflux disease (GERD) is complex. We aimed to determine the association of self-reported and objective sleep parameters with diverse manifestations of the GERD spectrum.

Methods: We prospectively recruited 561 individuals who underwent an electrocardiogram-based cardiopulmonary coupling for OSA screening during a health check-up.

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Background: The burden of cancer can be altered by screening. The field of cancer screening is constantly evolving; from the initiation of program for new cancer types as well as exploring innovative screening strategies (e.g.

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Article Synopsis
  • Recent advancements in next generation sequencing (NGS) technology have made studying bacterial genomes in the environment more affordable and effective, allowing for the identification of previously unknown microbiome species.
  • An efficient NGS data analysis pipeline needs to combine various bioinformatics tools, which can be complex and resource-intensive, presenting challenges for biologists and clinicians.
  • Twnbiome, a public gut microbiome database developed from healthy Taiwanese subjects, provides an interactive and user-friendly platform for microbiota research, enabling easy data analysis and customizable results for users without a bioinformatics background.
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In healthcare facilities, answering the questions from the patients and their companions about the health problems is regarded as an essential task. With the current shortage of medical personnel resources and an increase in the patient-to-clinician ratio, staff in the medical field have consequently devoted less time to answering questions for each patient. However, studies have shown that correct healthcare information can positively improve patients' knowledge, attitudes, and behaviors.

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Article Synopsis
  • Scientists are finding new ways to test for colorectal cancer that are easier and less invasive than traditional methods.
  • A group of experts updated the rules for how to evaluate these new tests to make sure they're effective.
  • The new tests should be compared to the existing reliable tests and go through several phases of research to ensure they're safe and useful in real-world situations.
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Colonoscopy is crucial in preventing colorectal cancer (CRC) and reducing associated mortality. This comprehensive review examines the importance of high-quality colonoscopy and associated quality indicators, including bowel preparation, cecal intubation rate, withdrawal time, adenoma detection rate (ADR), complete resection, specimen retrieval, complication rates, and patient satisfaction, while also discussing other ADR-related metrics. Additionally, the review draws attention to often overlooked quality aspects, such as nonpolypoid lesion detection, as well as insertion and withdrawal skills.

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