2.Chemoprevention of Colitis-Associated Dysplasia or Cancer in Inflammatory Bowel Disease
Shun-Wen HSIAO ; Hsu-Heng YEN ; Yang-Yuan CHEN
Gut and Liver 2022;16(6):840-848
The association between inflammatory bowel disease and colorectal cancer is well known. Although the overall incidence of inflammatory bowel disease has declined recently, patients with this disease still have a 1.7-fold increased risk of colorectal cancer. The risk factors for developing colorectal cancer include extensive colitis, young age at diagnosis, disease duration, primary sclerosing cholangitis, chronic colonic mucosal inflammation, dysplasia lesion, and post-inflammatory polyps. In patients with inflammatory bowel disease, control of chronic inflammation and surveillance colonoscopies are important for the prevention of colorectal cancer. The 2017 guidelines from the European Crohn’s and Colitis Organisation suggest that colonoscopies to screen for colorectal cancer should be performed when inflammatory bowel disease symptoms have lasted for 8 years. Current evidence supports the use of chemoprevention therapy with mesalamine to reduce the risk of colorectal cancer in patients with ulcerative colitis. Other compounds, including thiopurine, folic acid, statin, and tumor necrosis factor-α inhibitor, are controversial.Large surveillance cohort studies with longer follow-up duration are needed to evaluate the impact of drugs on colorectal cancer risks.
3.Balloon-Assisted Enteroscopy and Capsule Endoscopy in Suspected Small Bowel Crohn's Disease.
Hsu Heng YEN ; Chen Wang CHANG ; Jen Wei CHOU ; Shu Chen WEI
Clinical Endoscopy 2017;50(5):417-423
Inflammatory bowel diseases are idiopathic inflammatory diseases of two main types, Crohn's disease and ulcerative colitis. Crohn's disease can affect the entire gastrointestinal tract, and the distal ileum is involved in up to 70% of patients. Moreover, Crohn's disease in one-quarter to one-third of patients involves isolation of the small bowel. Due to the nonspecific symptoms and anatomical location of the disease, small bowel Crohn's disease is a phenotype that is particularly difficult to manage. Since the introduction of capsule endoscopy in 2000 and balloon-assisted enteroscopy in the 21st century, it is now possible to directly inspect for small bowel Crohn's disease. However, the new modalities still have limitations, such as capsule retention and invasiveness of balloon-assisted enteroscopy. The diagnostic yields of both capsule endoscopy and balloon-assisted enteroscopy are high for patients with suspected small bowel Crohn's disease. Therefore, earlier use of capsule endoscopy or balloon-assisted enteroscopy can help with the diagnosis and earlier treatment of these patients to avert possible disastrous outcomes.
Capsule Endoscopy*
;
Colitis, Ulcerative
;
Crohn Disease*
;
Diagnosis
;
Gastrointestinal Tract
;
Humans
;
Ileum
;
Inflammatory Bowel Diseases
;
Phenotype
4.Identification of a lens-specific cis-acting element within the basal promoter of the human lens intrinsic membrane protein MP19 gene (LIM2).
Heng HSU ; Shu-Ren ZHANG ; Jian-Li SANG ; Ruo-Mei QI ; Robert L CHURCH
Chinese Journal of Biotechnology 2004;20(4):507-515
Using overlapping and mutant oligonucleotides as probes, gel mobility assays and competition experiments identified a sequence from -47 to -32 bp upstream of the LIM2 CAP site, which a lens protein complex bound with high affinity which appeared to bind only to the "sense" strand of the double-stranded DNA molecule. This sequence consisted of a string of four guanine residues followed by seven other nucleotides (AACCTAA) and followed by another four guanines, i.e. GGGGAACCTAAGGGG, called the Hsu element. Promoter-CAT constructs containing this sequence or mutations of the sequence indicated that the Hsu element is located within the basal promoter, and is essential for expression of the LIM2 gene. The trans factors binding to the Hsu element are present throughout development, and appear to be lens-specific. Since the LIM2 gene promoter does not contain a classic TATA box, the Hsu element may serve as the site for binding the RNA polymerase complex.
Base Sequence
;
Eye Proteins
;
genetics
;
Humans
;
Membrane Proteins
;
Molecular Sequence Data
;
Promoter Regions, Genetic
;
TATA Box
5.Safety and Efficacy of Adalimumab for Patients With Moderate to Severe Crohn's Disease: The Taiwan Society of Inflammatory Bowel Disease (TSIBD) Study.
Chen Wang CHANG ; Shu Chen WEI ; Jen Wei CHOU ; Tzu Chi HSU ; Chiao Hsiung CHUANG ; Ching Pin LIN ; Wen Hung HSU ; Hsu Heng YEN ; Jen Kou LIN ; Yi Jen FANG ; Horng Yuan WANG ; Hung Hsin LIN ; Deng Cheng WU ; Yen Hsuan NI ; Cheng Yi WANG ; Jau Min WONG
Intestinal Research 2014;12(4):287-292
BACKGROUND/AIMS: Only moderate to severe Crohn's Disease (CD) patients without a satisfactory conventional therapy effect are eligible to get reimbursement from the National Health Insurance of Taiwan for using adalimumab. These are more stringent criteria than in many Western countries and Japan and Korea. We aim to explore the efficacy of using adalimumab in CD patients under such stringent criteria. METHODS: A retrospective analysis was conducted in nine medical centers in Taiwan and we collected the results of CD patients receiving adalimumab from Sep 2009 to Mar 2014. The clinical characteristics, response measured by CDAI (Crohn's Disease Activity Index), adverse events and survival status were recorded and analyzed. CR-70, CR-100, and CR-150 were defined as attaining a CDAI decrease of 70, 100 or 150 points compared with baseline. RESULTS: A total of 103 CD patient records were used in this study. Sixty percent of these patients received combination therapy of adalimumab together with immunomodulators. CR-70 was 68.7%, 74.5% and 88.4% after week 4, 8 and 12 of treatment, respectively. The steroid-free rate, complications and survival were 47.6%, 9.7% and 99% of patients, respectively. In considering the mucosal healing, only 25% patients achieve mucosal healing after treatment for 6 to12 months. Surgery was still needed in 16.5% of patients. Combination treatment of adalimumab with immunomodulators further decreased the level of CDAI at week 8 when compared with the monotherapy. CONCLUSIONS: Even under the stringent criteria for using adalimumab, the response rate was comparable to those without stringent criteria.
Adalimumab
;
Crohn Disease*
;
Humans
;
Immunologic Factors
;
Inflammatory Bowel Diseases*
;
Japan
;
Korea
;
National Health Programs
;
Retrospective Studies
;
Taiwan*
6.Outcomes of limited period of adalimumab treatment in moderate to severe Crohn's disease patients: Taiwan Society of Inflammatory Bowel Disease Study.
Wei Chen LIN ; Jen Wei CHOU ; Hsu Heng YEN ; Wen Hung HSU ; Hung Hsin LIN ; Jen Kou LIN ; Chiao Hsiung CHUANG ; Tien Yu HUANG ; Horng Yuan WANG ; Shu Chen WEI ; Jau Min WONG
Intestinal Research 2017;15(4):487-494
BACKGROUND/AIMS: In Taiwan, due to budget limitations, the National Health Insurance only allows for a limited period of biologics use in treating moderate to severe Crohn's disease (CD). We aimed to access the outcomes of CD patients following a limited period use of biologics, specifically focusing on the relapse rate and remission duration; also the response rate to second use when applicable. METHODS: This was a multicenter, retrospective, observational study and we enrolled CD patients who had been treated with adalimumab (ADA) according to the insurance guidelines from 2009 to 2015. RESULTS: A total of 54 CD patients, with follow-up of more than 6 months after the withdrawal of ADA, were enrolled. The average period of treatment with ADA was 16.7±9.7 months. After discontinuing ADA, 59.3% patients suffered a clinical relapse. In the univariate analysis, the reason for withdrawal was a risk factor for relapse (P=0.042). In the multivariate analysis, current smoker became an important risk factor for relapse (OR, 3.9; 95% CI, 1.2−14.8; P=0.044) and male sex was another risk factor (OR, 2.9; 95% CI, 1.1−8.6; P=0.049). For those 48 patients who received a second round of biologics, the clinical response was seen in 60.4%, and 1 anaphylaxis occurred. CONCLUSIONS: Fifty-nine percent of patients experienced a relapse after discontinuing the limited period of ADA treatment, and most of them occurred within 1 year following cessation. Male sex and current smoker were risk factors for relapse. Though 60.4% of the relapse patients responded to ADA again.
Adalimumab*
;
Anaphylaxis
;
Biological Products
;
Budgets
;
Crohn Disease*
;
Follow-Up Studies
;
Humans
;
Inflammatory Bowel Diseases*
;
Insurance
;
Male
;
Multivariate Analysis
;
National Health Programs
;
Observational Study
;
Recurrence
;
Retrospective Studies
;
Risk Factors
;
Taiwan*
7.Survival of small-cell lung cancer and its determinants of outcome in Singapore.
Chee-Keong TOH ; Siew-Wan HEE ; Wan-Teck LIM ; Swan-Swan LEONG ; Kam-Weng FONG ; Swee-Peng YAP ; Anne A L HSU ; Philip ENG ; Heng-Nung KOONG ; Thirugnanam AGASTHIAN ; Eng-Huat TAN
Annals of the Academy of Medicine, Singapore 2007;36(3):181-188
INTRODUCTIONThe survival and epidemiology of small-cell lung cancer (SCLC) in Singapore has not been described. We aim to present the characteristics as well as determine the survival outcome and important prognostic factors for SCLC patients.
MATERIALS AND METHODSA retrospective analysis of SCLC patients diagnosed from 1999 to 2002 was conducted at the Outram campus, Singapore. Clinical characteristics and treatment data were obtained from case records and survival data were checked with the registry of births and deaths on 30 May 2005.
RESULTSOne hundred and eleven patients were analysed. There were 38 (34.2%) limited-disease (LD) patients and 73 (65.8%) extensive-disease (ED) patients. The majority were current or former smokers (94.7% among LD and 94.5% among ED). More patients with LD had good performance status (92% versus 63%, P = 0.0003) and were treated with combined chemotherapy and radiotherapy (82% versus 48%, P = 0.012). The median survival time of LD patients treated with curative chemoradiotherapy was 14.2 months (95% CI, 10.96 to 17.44). Those given prophylactic cranial irradiation had a median survival time of 16.9 months (95% CI, 11.83 to 21.97). For ED patients, the median survival time was 8.17 months (95%CI, 5.44 to 10.89). None of the factors analysed were significant prognostic factors for LD patients while performance status and type of treatment given were significant among ED patients.
CONCLUSIONSWe found that the characteristics and survival of SCLC patients in Singapore are fairly similar to that of other countries.
Aged ; Carcinoma, Small Cell ; mortality ; therapy ; Combined Modality Therapy ; Female ; Humans ; Lung Neoplasms ; mortality ; therapy ; Male ; Middle Aged ; Prognosis ; Retrospective Studies ; Singapore ; epidemiology
8.Ovarian cancer risk score predicts chemo-response and outcome in epithelial ovarian carcinoma patients
Hsiao-Yun LU ; Yi-Jou TAI ; Yu-Li CHEN ; Ying-Cheng CHIANG ; Heng-Cheng HSU ; Wen-Fang CHENG
Journal of Gynecologic Oncology 2021;32(2):e18-
Objective:
Cytoreductive surgery followed by adjuvant chemotherapy is a standard frontline treatment for epithelial ovarian cancer (EOC). We aimed to develop an ovarian cancer risk score (OVRS) based on the expression of 10 ovarian-cancer-related genes to predict the chemoresistance, and outcomes of EOC patients.
Methods:
We designed a case-control study with total 149 EOC women including 75 chemosensitives and 74 chemoresistants. Gene expression was measured using the quantitative real-time polymerase chain reaction. We tested for correlation between the OVRS and chemosensitivity or chemoresistance, disease-free survival (DFS), and overall survival (OS), and validated the OVRS by analyzing patients from the TCGA database.
Results:
The chemosensitive group had lower OVRS than the chemoresistant group (5 vs.15, p≤0.001, Mann-Whitney U test). Patients with disease relapse (13 vs. 5, p<0.001, MannWhitney U test) or disease-related death (13.5 vs. 6, p<0.001) had higher OVRS than those without. OVRS ≥10 (hazard ratio=3.29; 95% confidence interval=1.94–5.58; p<0.001) was the only predictor for chemoresistance in multivariate analysis. The median DFS (5 months vs. 24 months) and OS (39 months vs. >60 months) of patients with OVRS ≥10 were significantly shorter than those of patients with OVRS <9). The high OVRS group also had significantly shorter median OS than the low OVRS group in 255 patients in the TCGA database (39 vs. 49 months, p=0.046).
Conclusions
Specific genes panel can be clinically applied in predicting the chemoresistance and outcome, and decision-making of epithelial ovarian cancer.
9.Management of Crohn's disease in Taiwan: consensus guideline of the Taiwan Society of Inflammatory Bowel Disease.
Shu Chen WEI ; Ting An CHANG ; Te Hsin CHAO ; Jinn Shiun CHEN ; Jen Wei CHOU ; Yenn Hwei CHOU ; Chiao Hsiung CHUANG ; Wen Hung HSU ; Tien Yu HUANG ; Tzu Chi HSU ; Chun Chi LIN ; Hung Hsin LIN ; Jen Kou LIN ; Wei Chen LIN ; Yen Hsuan NI ; Ming Jium SHIEH ; I Lun SHIH ; Chia Tung SHUN ; Yuk Ming TSANG ; Cheng Yi WANG ; Horng Yuan WANG ; Meng Tzu WENG ; Deng Chyang WU ; Wen Chieh WU ; Hsu Heng YEN ; Jau Min WONG
Intestinal Research 2017;15(3):285-310
Crohn's disease (CD) is a chronic relapsing and remitting inflammatory disease of the gastrointestinal tract. CD is rare in Taiwan and other Asian countries, but its prevalence and incidence have been steadily increasing. A steering committee was established by the Taiwan Society of Inflammatory Bowel Disease to formulate statements on the diagnosis and management of CD taking into account currently available evidence and the expert opinion of the committee. Thorough clinical, endoscopic, and histological assessments are required for accurate diagnosis of CD. Computed tomography and magnetic resonance imaging are complementary to endoscopic evaluation for disease staging and detecting complications. The goals of CD management are to induce and maintain remission, reduce the risk of complications, and improve quality of life. Corticosteroids are the mainstay for inducing re-mission. Immunomodulating and biologic therapies should be used to maintain remission. Patients should be evaluated for hepatitis B virus and tuberculosis infection prior to treatment and receive regular surveillance for cancer. These consensus statements are based on current local evidence with consideration of factors, and could be serve as concise and practical guidelines for supporting clinicians in the management of patients with CD in Taiwan.
Adrenal Cortex Hormones
;
Asian Continental Ancestry Group
;
Biological Therapy
;
Consensus*
;
Crohn Disease*
;
Diagnosis
;
Disease Management
;
Expert Testimony
;
Gastrointestinal Tract
;
Hepatitis B virus
;
Humans
;
Incidence
;
Inflammatory Bowel Diseases*
;
Magnetic Resonance Imaging
;
Prevalence
;
Quality of Life
;
Taiwan*
;
Tuberculosis
10.Management of ulcerative colitis in Taiwan: consensus guideline of the Taiwan Society of Inflammatory Bowel Disease.
Shu Chen WEI ; Ting An CHANG ; Te Hsin CHAO ; Jinn Shiun CHEN ; Jen Wei CHOU ; Yenn Hwei CHOU ; Chiao Hsiung CHUANG ; Wen Hung HSU ; Tien Yu HUANG ; Tzu Chi HSU ; Chun Chi LIN ; Hung Hsin LIN ; Jen Kou LIN ; Wei Chen LIN ; Yen Hsuan NI ; Ming Jium SHIEH ; I Lun SHIH ; Chia Tung SHUN ; Yuk Ming TSANG ; Cheng Yi WANG ; Horng Yuan WANG ; Meng Tzu WENG ; Deng Chyang WU ; Wen Chieh WU ; Hsu Heng YEN ; Jau Min WONG
Intestinal Research 2017;15(3):266-284
Ulcerative colitis (UC) is an inflammatory bowel disease characterized by chronic mucosal inflammation of the colon, and the prevalence and incidence of UC have been steadily increasing in Taiwan. A steering committee was established by the Taiwan Society of Inflammatory Bowel Disease to formulate statements on the diagnosis and management of UC taking into account currently available evidence and the expert opinion of the committee. Accurate diagnosis of UC requires thorough clinical, endoscopic, and histological assessment and careful exclusion of differential diagnoses, particularly infectious colitis. The goals of UC therapy are to induce and maintain remission, reduce the risk of complications, and improve quality of life. As outlined in the recommended treatment algorithm, choice of treatment is dictated by severity, extent, and course of disease. Patients should be evaluated for hepatitis B virus and tuberculosis infection prior to immunosuppressive treatment, especially with steroids and biologic agents, and should be regularly monitored for reactivation of latent infection. These consensus statements are also based on current local evidence with consideration of factors, and could be serve as concise and practical guidelines for supporting clinicians in the management of UC in Taiwan.
Biological Factors
;
Colitis
;
Colitis, Ulcerative*
;
Colon
;
Consensus*
;
Diagnosis
;
Diagnosis, Differential
;
Disease Management
;
Expert Testimony
;
Hepatitis B virus
;
Humans
;
Incidence
;
Inflammation
;
Inflammatory Bowel Diseases*
;
Prevalence
;
Quality of Life
;
Steroids
;
Taiwan*
;
Tuberculosis
;
Ulcer*