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Mak JWY, Ho AHY, Ng SC. IBD barriers across the continents - East Asia. Therap Adv Gastroenterol 2023; 16:17562848231212089. [PMID: 38026101 PMCID: PMC10666695 DOI: 10.1177/17562848231212089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Abstract
Inflammatory bowel diseases (IBDs) are chronic illnesses with significant morbidities and impact on patients' quality of life. There has been a rapid increase in the incidence of IBD in East Asia in recent decades. However, there is a huge unmet need in the diagnosis and management of IBD in this region. With the increasing awareness of IBD in East Asia and a persistently high rate of tuberculosis in this region, this poses a significant challenge in the diagnosis and management of IBD. In this review, we will explore the barriers to the diagnosis and management of IBD in the East Asia, hoping to provide an insight on how to improve the healthcare system in the management of this complex disease.
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Affiliation(s)
- Joyce Wing Yan Mak
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Agnes Hiu Yan Ho
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Siew Chien Ng
- Department of Medicine and Therapeutics, Microbiota I-Center (MagIC), Center for Gut Microbiota Research, The Chinese University of Hong Kong, Shatin, Hong Kong
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Liang G, Cobián-Güemes AG, Albenberg L, Bushman F. The gut virome in inflammatory bowel diseases. Curr Opin Virol 2021; 51:190-198. [PMID: 34763180 DOI: 10.1016/j.coviro.2021.10.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/05/2021] [Accepted: 10/12/2021] [Indexed: 02/06/2023]
Abstract
Dysbiosis of the microbiome has been extensively studied in inflammatory bowel diseases (IBD). The roles of bacteria and fungi have been studied in detail, but viral communities, an important component of the microbiome, have been less thoroughly investigated. Metagenomics provided a way to fill this gap by using DNA sequencing to enumerate all viruses in a sample, termed the 'virome'. Such methods have now been employed in several studies to assess associations between viral communities and IBD, yielding several commonly seen properties, including an increase in tailed bacteriophage (Caudovirales) and a decrease in the spherical Microviridae. Numerous studies of single human viruses have been carried out, but no one virus has emerged as tightly associated, focusing attention on whole virome communities and further factors. This review provides an overview of research on the human virome in IBD, with emphasis on (1) dynamics of the gut virome, (2) candidate mechanisms of virome alterations with disease, (3) methods for studying the virome, and (4) potentially actionable implications of virome data.
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Affiliation(s)
- Guanxiang Liang
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104-6076, USA.
| | - Ana Georgina Cobián-Güemes
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104-6076, USA
| | - Lindsey Albenberg
- Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA, 19104-4399, USA
| | - Frederic Bushman
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104-6076, USA.
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Lee JM, Wei SC, Lee KM, Ye BD, Mao R, Kim HS, Park SJ, Park SH, Oh EH, Im JP, Jang BI, Kim DB, Takeuchi K. Clinical Course of Hepatitis B Viral Infection in Patients Undergoing Anti-Tumor Necrosis Factor α Therapy for Inflammatory Bowel Disease. Gut Liver 2021; 16:396-403. [PMID: 34593670 PMCID: PMC9099383 DOI: 10.5009/gnl210081] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/17/2021] [Accepted: 06/29/2021] [Indexed: 11/17/2022] Open
Abstract
Background/Aims Little is known about the clinical course of hepatitis B virus (HBV)-infected patients undergoing anti-tumor necrosis factor α (TNF-α) therapy for inflammatory bowel disease (IBD). We aimed to investigate the clinical course of HBV infection and IBD and to analyze liver dysfunction risks in patients undergoing anti-TNF-α therapy. Methods This retrospective multinational study involved multiple centers in Korea, China, Taiwan, and Japan. We enrolled IBD patients with chronic or resolved HBV infection, who received anti-TNF-α therapy. The patients’ medical records were reviewed, and data were collected using a web-based case report form. Results Overall, 191 patients (77 ulcerative colitis and 114 Crohn’s disease) were included, 28.3% of whom received prophylactic antivirals. During a median follow-up duration of 32.4 months, 7.3% of patients experienced liver dysfunction due to HBV reactivation. Among patients with chronic HBV infection, the proportion experiencing liver dysfunction was significantly higher in the non-prophylaxis group (26% vs 8%, p=0.02). Liver dysfunction occurred in one patient with resolved HBV infection. Antiviral prophylaxis was independently associated with an 84% reduction in liver dysfunction risk in patients with chronic HBV infection (odds ratio, 0.16; 95% confidence interval, 0.04 to 0.66; p=0.01). The clinical course of IBD was not associated with liver dysfunction or the administration of antiviral prophylaxis. Conclusions Liver dysfunction due to HBV reactivation can occur in HBV-infected IBD patients treated with anti-TNF-α agents. Careful monitoring is needed in these patients, and antivirals should be administered, especially to those with chronic HBV infection.
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Affiliation(s)
- Ji Min Lee
- Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Shu-Chen Wei
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Kang-Moon Lee
- Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Byong Duk Ye
- Department of Gastroenterology and Inflammatory Bowel Disease Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ren Mao
- Department of Internal Medicine, First Affiliated Hospital, Sun Yat-sen University, Shanghai, China, Korea
| | - Hyun-Soo Kim
- Department of Internal Medicine and Institute of Lifelong Health, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Soo Jung Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Hyoung Park
- Department of Gastroenterology and Inflammatory Bowel Disease Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eun Hye Oh
- Department of Gastroenterology and Inflammatory Bowel Disease Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.,Department of Gastroenterology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Jong Pil Im
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Byung Ik Jang
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Dae Bum Kim
- Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ken Takeuchi
- Department of Internal Medicine, Toho University Sakura Medical Center, Sakura, Japan
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Axiaris G, Zampeli E, Michopoulos S, Bamias G. Management of hepatitis B virus infection in patients with inflammatory bowel disease under immunosuppressive treatment. World J Gastroenterol 2021; 27:3762-3779. [PMID: 34321842 PMCID: PMC8291024 DOI: 10.3748/wjg.v27.i25.3762] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/26/2021] [Accepted: 05/27/2021] [Indexed: 02/06/2023] Open
Abstract
Hepatitis B remains a significant global clinical problem, despite the implementation of safe and effective vaccination programs. The prevalence of hepatitis B virus (HBV) in patients with inflammatory bowel disease (IBD) largely follows the regional epidemiologic status. Serological screening with hepatitis B surface antigen (HBsAg), and antibodies to hepatitis B surface (anti-HBs) and core (anti-HBc) proteins is a key element in the management of IBD patients and, ideally, should be performed at IBD diagnosis. Stratification of individual cases should be done according to the serologic profile and the IBD-specific treatment, with particular emphasis in patients receiving immunosuppressive regimens. In patients who have not contracted HBV, vaccination is indicated to accomplish protective immunity. Vaccination in immunosuppressed patients, however, is a challenging issue and several strategies for primary and revaccination have been proposed. The risk of HBV reactivation in patients with IBD should be considered in both HBsAg-positive and HBsAg-negative/anti-HBc-positive patients, when immunosuppressive therapies are administered. HBV reactivation is preventable via the administration of prophylactic nucleot(s)ide analogues and should be the standard approach in HBsAg-positive patients. HBsAg-negative/anti-HBc-positive patients represent a non-homogeneous group and bear a significantly lower risk of HBV reactivation. Biochemical, serological and molecular monitoring is currently the recommended approach for anti-HBc patients. Acute HBV infection is rarely reported in IBD patients. In the present review, we outline the problems associated with HBV infection in patients with IBD and present updated evidence for their management.
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Affiliation(s)
- Georgios Axiaris
- Gastroenterology Department, "Alexandra" Hospital, Athens 11528, Greece
| | - Evanthia Zampeli
- Gastroenterology Department, "Alexandra" Hospital, Athens 11528, Greece
| | | | - Giorgos Bamias
- GI Unit, 3rd Academic Department of Internal Medicine, National and Kapodistrian University of Athens, Sotiria Hospital, Athens 11526, Greece
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Abstract
Inflammatory bowel disease (IBD) is an immune-mediated disease, which often require lifetime treatment with immunomodulators and immunosuppressive drugs. Both IBD and its treatments are associated with an increased risk of infectious disease and mortality. Several of these diseases are vaccine preventable and could be avoided, reducing morbidity and mortality. However, vaccination rates among patients with IBD are lower than in the general population and both patients and doctors are not fully aware of the problem. Education campaigns and well planned vaccination schemes are necessary to improve vaccination coverage in patients with IBD. Immunomodulators and immunosuppressive drugs may reduce the seroprotection levels. For this reason, new vaccination schemes are being studied in patients with IBD. It is therefore important to understand which and when vaccines can be administrated based on immunocompetence or immunosuppression of patients. Usually, live-attenuated vaccines should be avoided in immunosuppressed patients, so assessing vaccination status and planning vaccination before immunosuppressive treatments are pivotal to reduce infection risk. The aim of this review is to increase the awareness of the problem and provide a quick reference for vaccination plan tailoring, especially for gastroenterologists and primary care physicians, who have the skills and knowledge to implement vaccination strategies.
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Chan HCH, Ng SC. Emerging biologics in inflammatory bowel disease. J Gastroenterol 2017; 52:141-150. [PMID: 27832357 DOI: 10.1007/s00535-016-1283-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 10/27/2016] [Indexed: 02/04/2023]
Abstract
Early biologic therapy is recommended in patients with inflammatory bowel disease and poor prognostic factors and in those refractory to conventional medications. Anti-tumor necrosis factor (anti-TNF) agents are the most commonly used biologic agents. However, some patients may not have an initial response to anti-TNF therapy, and one-third will develop loss of response over time. Anti-TNF drugs can also be associated with side effects. In addition, the use of biologics is currently limited by their cost, especially in developing countries. A number of new therapeutic targets, including novel small molecules, and cellular therapy are available or under investigation. These novel molecules include oral Janus kinase (JAK) inhibitor (tofacitinib), interleukin inhibitor (ustekinumab), oral SMAD7 antisense oligonucleotide (mongersen), and anti-integrin inhibitors (vedolizumab). Here, we review the mechanisms of action, the efficacy, and the safety data of these novel agents. Biological products that are highly similar to reference biologic products whose patents have expired-also known as "biosimilars"-can be produced at lower cost with similar efficacy, and are also available for the treatment of IBD. We review the efficacy data for such agents as well.
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Affiliation(s)
- Heyson Chi-Hey Chan
- Department of Medicine and Therapeutics, Institute of Digestive Disease, The Chinese University of Hong Kong, Sha Tin, Hong Kong
| | - Siew Chien Ng
- Department of Medicine and Therapeutics, Institute of Digestive Disease, The Chinese University of Hong Kong, Sha Tin, Hong Kong.
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