Wei-Chen Tai

Dr. Wei-Chen Tai


Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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2 October 2024 in Journal of Microbiology, Immunology and Infection
Verified
Journal Article
Open access
YTYu-Chieh Tsai
Yu-Chieh Tsai
WTWei-Chen Tai
Wei-Chen Tai
CLChih-Ming Liang
Chih-Ming Liang
CWCheng-Kun Wu
Cheng-Kun Wu
MTMing-Chao Tsai
Ming-Chao Tsai
SCSeng-Kee Chuah
Seng-Kee Chuah
The inflammatory bowel disease (IBD), comprising Crohn's disease (CD) and ulcerative colitis (UC) is a complex disease with multifactorial etiology. The intestinal dysbiosis have been investigated to play an important role in IBD pathogenesis and disease activity. The aim of our study was to analyze the intestinal microbiota composition in IBD across different severity levels and the impact of biologic therapy on microbiota modulation. In this study, 27 IBD patients were recruited, including 14 patients undergoing biologic therapy for moderate to severe disease activity and 13 controls with inactive disease. The gut microbial composition was determined by 16 S ribosomal RNA gene sequencing of stool samples. Biologic therapy led to significant clinical improvement in IBD disease activity after 48 weeks. About species richness, community alpha diversity was significant lower in active CD patients and enriched gradually after biologic therapy. The beta-diversity regard to the difference of bacterial community composition showed significant difference between patients in biologic and control group. A decrease in Firmicutes and increase in Bacteroidetes abundance were observed in patients with active disease, both in CD and UC. Biologic treatment induced shifts in gut microbiota, with increased Firmicutes and decreased Bacteroidetes, as well as improved F/B ratio gradually after treatment, correlating with disease activity. Our study suggested that gut microbiota differences changed after biologic therapies among IBD with different disease activity, and a rising Firmicutes/Bacteroidetes ratio could be a potential predictor for disease activity and treatment response monitoring.

15 July 2015 in BioMed Research International
Verified
Journal Article
Open access
PDF file
CYChih-Chien Yao
Chih-Chien Yao
IWI-Ting Wu
I-Ting Wu
LLLung-Sheng Lu
Lung-Sheng Lu
SLSheng-Chieh Lin
Sheng-Chieh Lin
CLChih-Ming Liang
Chih-Ming Liang
WTWei-Chen Tai
Wei-Chen Tai
Background. Foreign object ingestion and food bolus impaction are a common clinical problem. We report our clinical experiences in endoscopic management for adults, foreign body ingestion, and food bolus impaction.Method. A retrospective chart review study was conducted on adult patients with foreign body ingestion and food bolus impaction between January 2011 and November 2014. Patients with incomplete medical records were excluded.Results. A total of 198 patients (226 incidents) were included in the study (male/female: 1.54/1; age 57 ± 16 years). Among them, 168 foreign bodies were found successfully (74.3%). 75.6% of the foreign bodies were located in the esophagus. Food bolus impaction was most common (41.6%). 93.5% of foreign bodies in current study cohort were successfully extracted and 5 patients required surgical interventions. Comparisons between symptomatic and asymptomatic patients revealed that locations of foreign bodies in the pharynx and esophagus were the significant relevant factors (P<0.001). Shorter time taken to initiate endoscopic interventions increased detection rate (289.75 ± 465.94 versus 471.06 ± 659.93 minutes,P=0.028).Conclusion. Endoscopic management is a safe and highly effective procedure in extracting foreign body ingestion and food bolus impaction. Prompt endoscopic interventions can increase the chance of successful foreign bodies’ detection.

10 June 2013 in BMC Gastroenterology
Verified
Journal Article
Open access
PDF file
YCYi-Chun Chiu
Yi-Chun Chiu
CLChih-Ming Liang
Chih-Ming Liang
WTWilliam Tam
William Tam
KWKENG-LIANG WU
KENG-LIANG WU
LLLong-Sheng Lu
Long-Sheng Lu
SCSeng-Kee Chuah
Seng-Kee Chuah
Background: Esophageal stricture (ES) and gastric outlet obstruction (GOO) can occurred in patients injured by the ingestion of corrosive agents. These complications may occur concurrently but has not been reported in the literature. The aims of this study are to assess the effects and complications of endoscopic-guided balloon dilations (EBD) in patients with corrosive-induced upper gastrointestinal strictures, either ES or GOO alone and simultaneous occurrences of both (ES + GOO). Methods: From July 2002 to December 2009, 36 patients with corrosive-induced upper gastrointestinal strictures in a tertiary hospital were recruited into this study. The patients were divided into three groups, ES group (n = 18), GOO (n = 7), and ES + GOO group (n = 11). All strictures were dilated under direct visualization by using through-the-scope balloon catheters to the end point of 15 mm. The end-point of treatment was successful ingestion of a solid or semisolid diet without additional dilation for more than 12 months. Results: These 36 patients included 15 males and 21 females with average age of 47 years ranging from 25 to 79 years. The success rates for ES group is significantly better than GOO and ES + GOO group (83.3% vs. 57.1% vs. 36.4% p = 0.035). Less complications were observed in ES group than in GOO and ES + GOO group (16.7% vs. 42.9% vs. 36.4%, p = 0.041). GOO group needed more sessions of dilations in order to achieve success dilations than ES and GOO groups (13.7 ± 4.9 vs. 6.1 ± 4.7 vs. 5.5 ± 2.1, p = 0.011). Conclusions: Corrosive injuries complicated with ES can be effectively and safely treated by EBD. However, the success rates declined significantly in patients with GOO with or without ES and amore complications occurred.

1 January 2015 in World Journal of Gastroenterology
Verified
Journal Article
Open access
IWI-Ting Wu
I-Ting Wu
SCSeng-Kee Chuah
Seng-Kee Chuah
CLChen-Hsiang Lee
Chen-Hsiang Lee
CLChih-Ming Liang
Chih-Ming Liang
LLLung-Sheng Lu
Lung-Sheng Lu
WTWei-Chen Tai
Wei-Chen Tai
Five-year sequential changes in secondary antibiotic resistance of Helicobacter pylori in Taiwan

18 June 2019 in BMC Gastroenterology
Verified
Journal Article
Open access
PDF file
CKChung-Mou Kuo
Chung-Mou Kuo
YCYi-Chun Chiu
Yi-Chun Chiu
CLChih-Ming Liang
Chih-Ming Liang
CWCheng-Kun Wu
Cheng-Kun Wu
LLLung-Sheng Lu
Lung-Sheng Lu
CKChung-Huang Kuo
Chung-Huang Kuo
The removal of large bile duct stones (> 15 mm) by conventional endoscopic sphincterotomy (EST) and endoscopic papillary balloon dilation (EPBD) can be challenging, requiring mechanical lithotripsy (ML) in addition to EST or EPBD. The primary complication of ML is basket and stone impaction, which can lead to complications such as pancreatitis and cholangitis. The present study aims to investigate the efficacy of limited EST plus endoscopic papillary large balloon dilation (EST-EPLBD) for large bile duct stone extraction with an extent of cutting < 1/2 the length of the papillary mound. We enrolled 185 patients with ≥15 mm bile duct stones who received EST, EPLBD and limited EST-EPLBD treatment from January 1, 2010 to February 28, 2018, at Kaohsiung Chang Gung Memorial Hospital (Kaohsiung, Taiwan). All patients were categorized into three groups: EST group (n = 31), EPLBD group (n = 96), and limited EST-EPLBD group (n = 58). The primary outcome variables were the success rate of complete stone removal and complications. The limited EST-EPLBD group exhibited a higher success rate of the first-session treatment compared with the EST and EPLBD groups (98.3% vs. 83.9% vs. 86.5%; P = 0.032) but required a longer procedure time (32 (12–61) min vs. 23.5 (17–68) min vs. 25.0 (14–60) min; P = 0.001). The need for ML during the procedure was 4 (12.9%) in the EST group, 10 (10.4%) in the EPLBD group and 2 (3.4%) in the limited EST-EPLBD group. Post-procedure bleeding in the EST group was more common than that in the limited EST-EPLBD group (9.7% vs. 0%; P = 0.038). Furthermore, dilated bile duct was the only risk factor for bile duct stone recurrence in the limited EST-EPLBD group. Limited EST-EPLBD exhibits a higher success rate but requires marginally longer procedure time for the first-session treatment. Furthermore, dilated bile duct is the only risk factor for bile duct stone recurrence in patients undergoing limited EST-EPLBD.

1 May 2019 in Infection and Drug Resistance
Verified
Journal Article
Open access
PDF file
CYChih-Chien Yao
Chih-Chien Yao
CKChung-Mou Kuo
Chung-Mou Kuo
CHChien-Ning Hsu
Chien-Ning Hsu
SYShig-Cheng Yang
Shig-Cheng Yang
CWCheng-Kun Wu
Cheng-Kun Wu
SCSeng-Kee Chuah
Seng-Kee Chuah
Purpose: To assess the difference of the first-line therapy for Helicobacter pylori in patients with or without type 2 diabetes (DM) and to investigate the clinical factors influencing treatment outcomes. Patients and methods: In total, 719 patients with H. pylori infection were treated with 7-day standard first-line triple therapy, of whom 182 did and 537 did not have DM. Propensity score matched at a 1:2 ratio – for age, sex and body mass index was performed for the two groups, yielding a DM group with 147 patients and a non-DM group with 249 matched controls for analysis. Urea breath test was performed 6–8 weeks after treatment. Clinical and laboratory parameters were collected for identifying factors associated with failed eradication. Results: H. Pylori was eradicated in 74.1% (95% confidence interval [CI] =66.2–81.0) of the DM group and 85.3% (95% CI =80.8–89.4) of the non-DM group (p=0.005). Of 51 gastric biopsy samples cultured for H. pylori, 41 were positive. In the DM group, the rates of resistance to amoxicillin, clarithromycin, levofloxacin, and tetracycline were 0%, 50.0%, 50.0% and 0%, respectively. In the non-DM group, the comparable proportions were 2.9%, 17.1%, 22.9%, and 0%, respectively. Univariate analysis revealed that DM (Odds ratio [OR], 1.771, 95% CI, 1.167–2.668, p=0.006), clarithromycin resistance (OR, 15.273; 95% CI, 1.687–138.269; p=0.015), and amoxicillin resistance (OR, 4.672; 95% CI, 2.431–8.979; p90% eradication.