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Zhu Q, Fu Y, Qiu J, Guan L, Liao F, Xing Y, Zhou X. Causal relationship between primary biliary cholangitis and inflammatory bowel disease: a Mendelian randomization study. Gastroenterol Rep (Oxf) 2024; 12:goae049. [PMID: 38766495 PMCID: PMC11099544 DOI: 10.1093/gastro/goae049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 01/12/2024] [Accepted: 04/29/2024] [Indexed: 05/22/2024] Open
Abstract
Background Several studies indicated that inflammatory bowel disease (IBD) may contribute to increased susceptibility to primary biliary cholangitis (PBC). However, the causal relationship between IBD and PBC remains unclear. Methods The genetic variant data of patients with IBD and PBC were obtained from published genome-wide association studies (GWASs). The IBD data were further divided into a discovery dataset and a validation dataset depending on the data source. We conducted a two-sample Mendelian randomization (MR) analysis using the inverse variance weighting (IVW), MR-Egger, weighted median (WM), MR robust adjusted profile score (MR-RAPS), and maximum likelihood (ML) methods, with IVW being the main focus, to verify the causal relationship between IBD and PBC. Additionally, a series of sensitivity analyses were performed to ensure the reliability of the results. Results In the discovery cohort, the IVW analysis results (OR = 1.114, P = 0.011) indicated a significant association between IBD and PBC. The MR-RAPS (OR = 1.130, P = 0.007) and ML (OR = 1.115, P = 0.011) analyses yielded results consistent with those of IVW in confirming IBD as a risk factor for PBC. In the validation cohort, consistent findings were observed regarding the causal relationship between IBD and PBC using IVW, MR-RAPS, and ML analyses; all three methods identified IBD as a risk factor for developing PBC. By the IVW analysis, Crohn's disease (CD) emerged as the most prominent subtype of IBD associated with an increased risk of developing PBC in both the discovery cohort (OR = 1.068, P = 0.049) and the validation cohort (OR = 1.082, P = 0.019). Conclusion The results of the MR analysis suggest a causal relationship between IBD and PBC, highlighting the necessity for proactive PBC prevention in patients with IBD, particularly those with CD.
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Affiliation(s)
- Qi Zhu
- Department of Gastroenterology, Digestive Disease Hospital, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P. R. China
| | - Yunfeng Fu
- Department of Gastroenterology, Digestive Disease Hospital, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P. R. China
| | - Jianhao Qiu
- Department of Gastroenterology, Digestive Disease Hospital, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P. R. China
| | - Langyi Guan
- Department of Gastroenterology, Digestive Disease Hospital, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P. R. China
| | - Foqiang Liao
- Department of Gastroenterology, Digestive Disease Hospital, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P. R. China
| | - Yawei Xing
- Department of Gastroenterology, Digestive Disease Hospital, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P. R. China
| | - Xiaodong Zhou
- Department of Gastroenterology, Digestive Disease Hospital, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P. R. China
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Chang ML, Cheng JS, Le PH, Chen WT, Ku HP, Chien RN. Evolutionary relationship between antimitochondrial antibody positivity and primary biliary cholangitis in Taiwan: a 16-year hospital cohort study. Therap Adv Gastroenterol 2024; 17:17562848241241227. [PMID: 38560427 PMCID: PMC10981211 DOI: 10.1177/17562848241241227] [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: 08/26/2023] [Accepted: 03/06/2024] [Indexed: 04/04/2024] Open
Abstract
Background How antimitochondrial antibody (AMA)-positive patients evolve to have primary biliary cholangitis (PBC) in viral hepatitis-endemic areas is unknown. Objectives We aimed to investigate this evolution in Taiwan. Design/methods A 16-year medical center-based cohort study of 2,095,628 subjects was conducted in Taiwan, an Asian country endemic to viral hepatitis. AMA-positive subjects were those with positive AMA with alkaline phosphatase (ALP) ⩽1.5 times the upper limit of normal (ULN), and PBC was defined as positive AMA with ALP >1.5 × ULN. Results AMA-positive subjects had a lower average age- and sex-adjusted prevalence than PBC patients (4.68/105 versus 11.61/105, p = 0.0002), but their incidence was comparable (0.99/105 versus 1.12/105, p = 0.36). The former group had a borderline significantly lower mean age (56.59 years versus 58.10 years, p = 0.06) and a lower female-to-male ratio (2.85:1 versus 5.44:1, p < 0.0001). Both AMA-positive subjects (prevalence change: 20.0%, p < 0.01; incidence change: -9.2%, p < 0.01) and PBC patients (prevalence change: 14.6%, p < 0.01; incidence change: -4.7%, p < 0.01) prevalence rate increased but the incidence rate decreased. Among the 423 AMA-positive subjects, 77 (18.2%) developed PBC, for a mean duration of 1.757 years. Compared with AMA-positive subjects, PBC patients had similar concurrent chronic hepatitis B (CHB) rates (2.7% versus 4.3%, p = 0.197) but lower chronic hepatitis C (CHC) rates (3.69% versus 15.60%, p < 0.01). Conclusion PBC was more prevalent than AMA-positive subjects, and PBC patients had a higher female-to-male ratio than AMA-positive subjects, of whom 18.2% developed PBC (mean lag: 1.757 years). Upward trends in prevalence rates and downward trends in incidence rates were noted for both AMA-positive subjects and PBC. CHB was rare, CHC was more prevalent among PBC patients than the general population, and CHC was less prevalent among PBC than among AMA-positive subjects.
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Affiliation(s)
- Ming-Ling Chang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, No. 5, Fu Hsing Street, Kuei Shan, Taoyuan 333423, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Jur-Shan Cheng
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Clinical Informatics and Medical Statistics Research Center, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Puo-Hsien Le
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Wei-Ting Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Hsin-Ping Ku
- Clinical Informatics and Medical Statistics Research Center, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Rong-Nan Chien
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Zhao D, Zhao Q, Xu F, Zhang F, Bai W. Primary biliary cirrhosis and psoriasis: a two-sample Mendelian randomization study. Front Immunol 2024; 14:1264554. [PMID: 38239358 PMCID: PMC10794341 DOI: 10.3389/fimmu.2023.1264554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 12/14/2023] [Indexed: 01/22/2024] Open
Abstract
Background Primary biliary cirrhosis (PBC) and psoriasis are frequently observed to co-occur in clinical settings. However, the causal associations and underlying mechanisms between PBC and psoriasis remain poorly defined. Methods In this study, we conducted bidirectional MR analysis to explore the causal relationship between PBC and psoriasis using four MR methods: inverse-variance weighted, MR-Egger regression, weighted median, and weighted mode. Sensitivity analyses were carried out, employing different models and testing methods for comparison to assess the influence of heterogeneity and pleiotropy on our findings and to confirm the robustness of these results. Results A causal relationship between the risk of PBC and psoriasis was identified, as confirmed by IVW analysis (OR: 1.081, 95%CI: 1.028~1.137, P<0.05). The other three MR methods also produced similar results. However, psoriasis did not have a causal effect on PBC risk (OR: 1.022, 95%CI: 0.935~1.118, P>0.05). The intercept of MR-Egger regression was 0.0013 (P>0.05), indicating that genetic pleiotropy did not influence the results. Additionally, the leave-one-out analysis demonstrated the robustness of our MR findings. Conclusion This study reveals a causal relationship between PBC and psoriasis, with PBC increasing the risk of psoriasis, but not the reverse. This potential causal relationship offers a new perspective on the etiology of PBC.
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Affiliation(s)
- Diqian Zhao
- The First Clinical Medical School, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Qinyu Zhao
- Institute of Acupuncture and Moxibustion, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Fangwei Xu
- Department of Radiology, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Fang Zhang
- Department of Dermatology, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
- Postdoctoral Mobile Station, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Wenzhe Bai
- The First Clinical Medical School, Shandong University of Traditional Chinese Medicine, Jinan, China
- Postdoctoral Mobile Station, Shandong University of Traditional Chinese Medicine, Jinan, China
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Ismail A, Kennedy L, Francis H. Sex-Dependent Differences in Cholestasis: Why Estrogen Signaling May Be a Key Pathophysiological Driver. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:1355-1362. [PMID: 37422150 PMCID: PMC10548272 DOI: 10.1016/j.ajpath.2023.06.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/30/2023] [Accepted: 06/15/2023] [Indexed: 07/10/2023]
Abstract
Primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC) are cholestatic liver diseases that have significant clinical impact with debilitating symptoms and mortality. While PBC is predominantly seen in perimenopausal and postmenopausal women, men who are diagnosed with PBC have worse clinical outcomes and all-cause mortality. In contrast, 60% to 70% of patients with PSC are men; the data indicate that female sex may be an independent factor against PSC-related complications. These findings suggest a sex-dependent biological basis for these differences. Estrogen has been implicated in the pathogenesis of intrahepatic cholestasis of pregnancy and may induce cholestasis through a variety of interactions. However, it is unclear why some sexual dimorphic features may provide a protective effect despite known estrogen models that induce cholestasis. This article provides a brief introductory background and discusses the sexual dimorphism in clinical presentation in PSC and PBC. It also explores the role of estrogen signaling in pathogenesis and how it relates to intrahepatic cholestasis of pregnancy. Studies have already targeted certain molecules involved in estrogen signaling, and this review discusses these studies that identify estrogen-related receptor, estrogen receptor-α, estrogen receptor-β, farnesoid X receptor, and mast cells as possible targets, in addition to long noncoding RNA H19-induced cholestasis and sexual dimorphism. It also explores these interactions and their role in the pathogenesis of PBC and PSC.
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Affiliation(s)
- AbdiGhani Ismail
- Division of Internal Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Lindsey Kennedy
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Research, Richard L. Roudebush VA Medical Center, Indianapolis, Indiana.
| | - Heather Francis
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Research, Richard L. Roudebush VA Medical Center, Indianapolis, Indiana.
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Cheng JS, Chen WT, Ku HP, Chien RN, Chang ML. Characteristic geoepidemiology of primary biliary cholangitis in Taiwan: A nationwide population-based study. Hepatol Res 2023; 53:866-877. [PMID: 37060573 DOI: 10.1111/hepr.13910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/25/2023] [Accepted: 04/06/2023] [Indexed: 04/16/2023]
Abstract
AIM Data on the geoepidemiology and outcomes of primary biliary cholangitis (PBC) in Asia are limited; thus, we aimed to collect and assess this information for Taiwan. METHODS A nationwide population-based cohort study was undertaken using data from the Taiwan National Health Insurance Research Database. Primary biliary cholangitis was defined by the International Classification of Diseases, Ninth Revision, Clinical Modification code 571.6 based on alkaline phosphatase and antimitochondrial antibody measurements and ursodeoxycholic acid treatment. RESULTS During 2002-2015, 2737 patients (2137 female patients; mean age, 57.78 years) had PBC. The average annual age- and sex-adjusted prevalence and incidence rates of PBC were 8.092/105 and 1.148/105 , respectively. Prevalent cases peaked in patients aged 50-59 years; the female-to-male ratio was 4.21. Annual prevalence rates increased with time (average percentage change, 12.03%; p < 0.0001). The annual incidence rates decreased with time (-7.39%; p = 0.000011) in female patients (-8.94%; p = 0.000003) but remained steady in male patients. Female-to-male and northern-to-southern relative risks of PBC incidence rates ranged from 2.2675 to 4.3318 and from 1.5707 to 3.1725, respectively. The 14-year hepatocellular carcinoma (HCC) cumulative incidence was 9.11%, and the mortality rate was 32.44%; the cumulative incidences of dyslipidemia, thyroid disease, and extrahepatic cancers were 65.13%, 24.40%, and 12.79%, respectively. Higher cumulative incidences of HCC (p = 0.0064) and mortality (p < 0.0001) were noted in male than female PBC patients; southern Taiwan PBC patients had higher cumulative incidences of mortality (p < 0.0001) than their northern counterparts. CONCLUSION In Taiwan, decreasing trends in incidence rates and the female-to-male ratio of PBC patients and specific sex and geographic impacts on the incidence rates and outcomes of PBC demand further investigation.
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Affiliation(s)
- Jur-Shan Cheng
- Clinical Informatics and Medical Statistics Research Center, College of Medicine, Chang Gung University, Keelung, Taiwan
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Wei-Ting Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Hsin-Ping Ku
- Clinical Informatics and Medical Statistics Research Center, College of Medicine, Chang Gung University, Keelung, Taiwan
| | - Rong-Nan Chien
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ming-Ling Chang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Shaker M, Mansour N, John BV. Primary Biliary Cholangitis in Males: Pathogenesis, Clinical Presentation, and Prognosis. Clin Liver Dis 2022; 26:643-655. [PMID: 36270721 DOI: 10.1016/j.cld.2022.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Primary biliary cholangitis (PBC) is an immune-mediated chronic liver disease characterized by progressive cholestasis, bile duct destruction, biliary fibrosis, and cirrhosis. Patients who respond to ursodeoxycholic acid have an expected survival similar to the general population. Although PBC primarily affects females, the prevalence in males is higher than was previously believed, with contemporary studies suggesting a female-to-male ratio of 4-6:1. A diagnosis of PBC is often delayed among males because of the myth that PBC is rare in males.
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Affiliation(s)
- Mina Shaker
- Division of Hepatology, Miami VA Medical Center 1201 NW 16th Street, Miami, FL 33125 USA.
| | - Natalie Mansour
- Division of Hepatology, Miami VA Medical Center 1201 NW 16th Street, Miami, FL 33125 USA
| | - Binu V John
- Division of Hepatology, Miami VA Medical Center 1201 NW 16th Street, Miami, FL 33125 USA; Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, USA
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Colapietro F, Bertazzoni A, Lleo A. Contemporary Epidemiology of Primary Biliary Cholangitis. Clin Liver Dis 2022; 26:555-570. [PMID: 36270716 DOI: 10.1016/j.cld.2022.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Primary biliary cholangitis (PBC) is a cholestatic liver disease with potential evolution to liver cirrhosis when left untreated. Despite being rare, PBC has a substantial impact on the quality of life and survival of affected patients. Women are the most diagnosed worldwide; however, male subjects seem to have more aggressive disease and worse prognosis. Changing epidemiologic trends are emerging in PBC, with increasing global prevalence and slight smoothing of sex differences. In this review we present available data on incidence rates and prevalence of PBC worldwide, highlighting geographic differences and factors impacting clinical outcomes.
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Affiliation(s)
- Francesca Colapietro
- Division of Internal Medicine and Hepatology, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Via A. Manzoni 56, Rozzano 20089, Italy; Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
| | - Arianna Bertazzoni
- Division of Internal Medicine and Hepatology, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Via A. Manzoni 56, Rozzano 20089, Italy; Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
| | - Ana Lleo
- Division of Internal Medicine and Hepatology, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Via A. Manzoni 56, Rozzano 20089, Italy; Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.
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Li H, Zhan H, Cheng L, Yan S, Wang L, Li Y. Imbalanced distribution of group 2 innate lymphoid cells (ILCs) and ILC precursors in peripheral blood of patients with primary biliary cholangitis. Scand J Immunol 2022; 96:e13166. [PMID: 35315090 DOI: 10.1111/sji.13166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 11/30/2022]
Abstract
Innate lymphoid cells (ILCs), a novel group of innate immune cells, play a key role in the early immune response via rapidly reacting to signals expressed by tissue-resident cells. ILCs contribute to some autoimmune diseases. We aim to investigate the proportions of circulating ILC subgroups in patients with primary biliary cholangitis (PBC). Overall, 48 patients with PBC and 24 healthy controls (HCs) were enrolled. Circulating ILCs and cytokine production were detected by flow cytometry. The proportions of total ILCs, ILC precursors (ILCPs), and ILCP/ILC2 ratio increased and that of ILC2s decreased in patients with PBC. ILC2 proportion was negatively correlated with gamma-glutamyl transpeptidase (GGT), alanine aminotransferase (ALT), and aspartate aminotransferase (AST). The proportion of ILCPs and ILCP/ILC2 ratio were positively correlated with alkaline phosphatase, GGT, ALT, and AST. ILC2 proportion was significantly decreased in the ursodeoxycholic acid (UDCA) -non-responder group compared with the UDCA-responder group, whereas the proportion of ILCPs and ILCP/ILC2 were ratio significantly increased. The proportions of CD38+ ILC2s, CD38+ ILCPs, CD45RO+ ILC2s, and CD45RO+ ILCPs were significantly higher in patients with PBC than in HCs. Levels of IL-17A producing ILCs were higher in patients with PBC than in HCs. PBC is accompanied by alterations in circulating ILCs. The proportions of ILC2s, ILCPs, and ILCP/ILC2 ratio were associated with the PBC disease activity. The proportions of ILCPs and ILCP/ILC2 ratio may reflect the UDCA treatment failure in patients with PBC. ILC2s and ILCPs from patients with PBC get activated, these cells may be involved in the pathogenesis of PBC.
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Affiliation(s)
- Haolong Li
- Department of Clinical Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Haoting Zhan
- Department of Clinical Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Linlin Cheng
- Department of Clinical Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Songxin Yan
- Department of Clinical Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Li Wang
- Department of Rheumatology, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yongzhe Li
- Department of Clinical Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
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Zhou K, Dodge JL, Xu E, Emamaullee J, Kahn JA. Excess liver transplant waitlist mortality for patients with primary biliary cholangitis under MELD-Na allocation. Clin Transplant 2021; 36:e14527. [PMID: 34731515 DOI: 10.1111/ctr.14527] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/30/2021] [Accepted: 10/22/2021] [Indexed: 01/13/2023]
Abstract
BACKGROUND Historically, patients with primary biliary cholangitis (PBC) experience waitlist mortality and low rates of liver transplant (LT). Herein, the impact of MELD-Na based allocation on PBC waitlist mortality was examined. METHODS Adult patients with PBC were compared to those with alcohol-related liver disease (ALD) or non-alcoholic steatohepatitis (NASH) listed for LT from 2013 to 2019 in OPTN. Competing risk regression evaluated waitlist mortality in the MELD and MELD-Na eras using propensity score weights. RESULTS Overall, 1508 patients with PBC, 13581 with ALD, and 10455 with NASH were examined. In the MELD-Na era, 24-month cumulative incidence of waitlist mortality for PBC was 23.0% (95%CI 19.7-26.5%), ALD 13.9% (95%CI 13.1-14.8%), and NASH 20.0% (95%CI 18.9-21.2%). Using propensity score weights, adjusted risk of waitlist mortality was higher for PBC versus ALD (HR = 1.45, 95%CI 1.22-1.71) and NASH (HR = 1.32, 95%CI 1.14-1.55). Furthermore, among PBC, waitlist mortality risk per five-point elevation in MELD-Na (HR = 1.22, 95%CI 1.11-1.35) and Karnofsky score ≤30% (HR = 2.02, 95%CI 1.39-2.92) was significantly higher than among ALD (HR = 1.08, 95%CI 1.04-1.13; HR = 1.28, 95%CI 1.10-1.49) and NASH (HR = 1.05, 95%CI 1.00-1.09; HR = 1.16, 95%CI .99-1.37; all P-interactions < .05). CONCLUSIONS The MELD-Na score continues to underestimate risk of waitlist death for patients with PBC relative to ALD and NASH and highlights need for additional score modifications or exceptions.
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Affiliation(s)
- Kali Zhou
- Division of Gastrointestinal and Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Jennifer L Dodge
- Division of Gastrointestinal and Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.,Department of Population and Public Health Sciences, University of Southern California, Los Angeles, California, USA
| | - Edison Xu
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Juliet Emamaullee
- Department of Surgery, University of Southern California, Los Angeles, California, USA
| | - Jeffrey A Kahn
- Division of Gastrointestinal and Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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Parés A. Practical management of primary biliary cholangitis. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2021; 114:410-417. [PMID: 34663072 DOI: 10.17235/reed.2021.8219/2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Primary biliary cholangitis (PBC) is a chronic and cholestatic liver disease of autoimmune pathogenesis that mainly affects middle-aged women. Patients show elevated alkaline phosphatase and bilirubin levels as the disease progresses. The main symptoms of the disease are pruritus and fatigue, which interfere with the quality of life of patients. Progressive damage leading to end stage liver disease could require liver transplantation. Despite the efficacy of ursodeoxycholic acid (UDCA), the current standard of care for PBC, up to 40% of patients have an inadequate response to the treatment, requiring a second-line therapy. Obeticholic acid is the only second-line treatment approved for PBC in combination with UDCA in adults with an inadequate response to UDCA, or as monotherapy in patients intolerant to UDCA. Although different clinical guidelines for the diagnosis and management of PBC have been published, PBC is still challenging for many physicians. In this article we briefly review the main characteristics of the disease and include a practical user-friendly algorithm for the diagnosis and management of PBC developed by Spanish PBC experts and based on the European Association for the Study of the Liver recommendations.
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Sivakumar T, Kowdley KV. Anxiety and Depression in Patients with Primary Biliary Cholangitis: Current Insights and Impact on Quality of Life. Hepat Med 2021; 13:83-92. [PMID: 34483690 PMCID: PMC8409764 DOI: 10.2147/hmer.s256692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/12/2021] [Indexed: 12/13/2022] Open
Abstract
Primary biliary cholangitis (PBC), formerly known as primary biliary cirrhosis, is a chronic cholestatic immune-mediated liver disease characterized by injury to intrahepatic bile ducts that may ultimately progress to cirrhosis and liver failure and result in the need for liver transplant or death without treatment. Ursodeoxycholic acid (UDCA) and obeticholic acid (OCA) are approved therapies for PBC and are associated with a reduced risk of progression of disease, although patients may continue to experience significant symptoms of pruritus and fatigue independent of liver disease. The two most commonly reported symptoms among patients with PBC are fatigue and pruritus which may be debilitating, and negatively impact physical, mental, emotional, and social wellbeing. Intense symptom burden has been associated with depressive symptoms, cognitive defects, poor sleep schedules, and social isolation. This literature review explores the presence of anxiety and depressive symptoms in chronic liver disease, the impact of symptom burden on patients' wellbeing, and available pharmaceutical and natural therapies.
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Gerussi A, Restelli U, Croce D, Bonfanti M, Invernizzi P, Carbone M. Cost of illness of Primary Biliary Cholangitis - a population-based study. Dig Liver Dis 2021; 53:1167-1170. [PMID: 32830065 DOI: 10.1016/j.dld.2020.07.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/21/2020] [Accepted: 07/22/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND The economic burden of Primary Biliary Cholangitis (PBC) has not been investigated at population-level. Aim of this study was to estimate the cost of illness of PBC in Lombardy, Italy. METHODS Individuals with PBC were identified through ICD-9-CM code 571.6 and/or medical exemption code 008.571.6, from the Banca Dati Assistito of Lombardy. Only health services (outpatient, inpatient activities and drugs) related to PBC were considered to estimate direct medical costs in 2017. RESULTS We identified 970 adult patients (83.5% females) with a mean age of 61 years. Global annual costs were equal to € 913,763 (€ 942 per patient), with € 459,506 (50.3%, € 474 per patient) deriving from hospitalizations (mostly due to liver transplantation, 30.5%, and cirrhosis complications, 20.6%). Costs from outpatient activities were € 109,090 (11.9%, € 112 per patient). CONCLUSIONS This study provides an overview of the costs attributed to PBC care and management, mainly related to hospitalizations for cirrhosis complications, which is necessary for assuring cost-effective introduction of novel therapies. Additional studies focused on indirect cost, e.g. overall loss of productivity, are warranted.
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Affiliation(s)
- Alessio Gerussi
- Division of Gastroenterology and Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Monza, Italy
| | - Umberto Restelli
- Center for Health Economics, Social and Health Care Management, LIUC - Università Cattaneo, Castellanza (Varese), Italy; School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Davide Croce
- Center for Health Economics, Social and Health Care Management, LIUC - Università Cattaneo, Castellanza (Varese), Italy
| | - Marzia Bonfanti
- Center for Health Economics, Social and Health Care Management, LIUC - Università Cattaneo, Castellanza (Varese), Italy
| | - Pietro Invernizzi
- Division of Gastroenterology and Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Monza, Italy
| | - Marco Carbone
- Division of Gastroenterology and Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Monza, Italy.
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13
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Identification of Long Noncoding RNAs lnc-DC in Plasma as a New Biomarker for Primary Sjögren's Syndrome. J Immunol Res 2021; 2020:9236234. [PMID: 33123604 PMCID: PMC7585659 DOI: 10.1155/2020/9236234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/12/2020] [Accepted: 09/28/2020] [Indexed: 12/12/2022] Open
Abstract
Objective To evaluate the plasma levels of lnc-DC in primary Sjögren's syndrome (pSS) patients and investigate the potential associations between lnc-DC and disease activity. Methods In this study, we recruited 358 enrollments, including 127 pSS patients without immune thrombocytopenia (ITP), 22 pSS patients with ITP, 50 systemic lupus erythematosus (SLE) patients, and 50 patients with rheumatoid arthritis (RA) and 109 healthy individuals, from Xuzhou Central Hospital. The expression of anti-SSA and anti-SSB was detected by enzyme-linked immunosorbent assay (ELISA). Spearman rank correlation test was used to analyze the relationship between lnc-DC and pSS activity. pSS activity was measured by anti-SSA, anti-SSB antibody, erythrocyte sedimentation rate (ESR), and β2-microglobulin levels. The receiver operating characteristic (ROC) curve was used to determine the diagnostic performance of plasma lnc-DC for pSS. Results Compared with healthy controls, SLE and RA patients, the lnc-DC expression levels were significantly elevated in pSS patients (P < 0.001), especially in pSS patients with ITP (P < 0.001). As expected, we also found that the lnc-DC expression positively correlated with anti-SSA (R2 = 0.290, P < 0.001), anti-SSB (R2 = 0.172, P < 0.001), ESR level (R2 = 0.076, P = 0.002), and β2-microglobulin level (R2 = 0.070, P = 0.003) in pSS patients. ROC curves showed that plasma lnc-DC in pSS patients had an AUC 0.80 with a sensitivity of 0.75 and specificity of 0.85 at the optimum cutoff 1.06 in discriminating SLE and RA patients. In addition, the combination of lnc-DC and anti-SSA/SSB (AUC: 0.84, sensitivity: 0.79, specificity: 0.90) improved significantly the diagnostic ability of pSS patients from SLE and RA patients. In the efficacy monitoring study, levels of plasma lnc-DC were dramatically decreased after treatment (P < 0.001). Conclusion These findings highlight that plasma lnc-DC as a novel biomarker for the diagnosis of pSS and can be used to evaluate the therapeutic efficacy of pSS underwent interventional therapy.
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Cortez-Pinto H, Liberal R, Lopes S, Machado MV, Carvalho J, Dias T, Santos A, Agostinho C, Figueiredo P, Loureiro R, Martins A, Alexandrino G, Cotrim I, Leal C, Presa J, Mesquita M, Nunes J, Gouveia C, Vale AHE, Alves AL, Coelho M, Maia L, Pedroto I, Banhudo A, Pinto JS, Gomes MV, Oliveira J, Andreozzi V, Calinas F. Predictors for incomplete response to ursodeoxycholic acid in primary biliary cholangitis. Data from a national registry of liver disease. United European Gastroenterol J 2021; 9:699-706. [PMID: 34102008 PMCID: PMC8280809 DOI: 10.1002/ueg2.12095] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 03/28/2021] [Indexed: 12/11/2022] Open
Abstract
Background The current standard of treatment in primary biliary cholangitis (PBC) is ursodeoxycholic acid (UDCA), although a considerable proportion of patients show incomplete response resulting in disease progression. Objective This study aimed to assess the prevalence of incomplete response to UDCA and determine associated patients' characteristics. Methods Patients with PBC as main diagnosis were included from a national multicentric patient registry—Liver.pt. Main endpoints included incomplete response to UDCA treatment according to Barcelona, Paris I and Paris II criteria, Globe and UK PBC scores and the association between baseline characteristics and incomplete response according to Paris II criteria. Results A total of 434 PBC patients were identified, with a mean age of 55 years and 89.2% females. Nearly half of patients were asymptomatic at diagnosis and 93.2% had positive anti‐mitochondrial antibodies. Almost all patients (95.6%) had been prescribed at least one drug for PBC treatment. At the last follow‐up visit, 93.3% were under treatment of which 99.8% received UDCA. Incomplete response to UDCA was observed in 30.7%, 35.3%, 53.7% and 36.4% of patients according to Barcelona, Paris I, Paris II criteria and Globe score, respectively. After adjusting for age and sex, and accordingly to Paris II criteria, the risk for incomplete biochemical response was 25% higher for patients with cirrhosis at diagnosis (odds ratio [OR] = 1.25; 95% confidence interval [95%CI]: 1.02–1.54; p = 0.033) and 35% (95%CI:1.06–1.72; p = 0.016) and 5% (OR = 1.05; 95%CI:1.01–1.10; p = 0.013) for those with elevated gamma‐glutamyl transferase (GGT) and alkaline phosphatase (ALP). Conclusion A considerable proportion of patients showed incomplete biochemical response to UDCA treatment according to Paris II criteria. Cirrhosis, elevated GGT and ALP at diagnosis were identified as associated risk factors for incomplete response. Early identification of patients at risk of incomplete response could improve treatment care and guide clinical decision to a more careful patient monitorization.
Summarise the established knowledge on this subject
Primary biliary cholangitis is a liver disease that can progress to end‐stage liver disease, with premature death or need for liver transplantation. Treatment with ursodeoxycholic acid (UDCA) significantly increases liver transplant‐free survival. However, incomplete response to UDCA reduces this beneficial effect.
What are the significant and/or new findings of this study?
By evaluating prevalence and risk factors for UDCA incomplete response through a large multicentric national registry it was found that 53.7% of patients were incomplete responders, according to Paris II criteria, with cirrhosis, elevated gamma‐glutamyl transferase and alkaline phosphatase at diagnosis as the main risk factors. These findings suggest that patients diagnosed at an advanced stage should be closely monitored and might benefit from novel therapies to improve outcomes if incomplete response is present.
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Affiliation(s)
- Helena Cortez-Pinto
- Clínica Universitária de Gastrenterologia, Departamento de Gastrenterologia, Faculdade de Medicina, Universidade de Lisboa, Centro Hospitalar Lisboa Norte, Lisboa, Portugal
| | - Rodrigo Liberal
- Gastroenterology Department, Centro Hospitalar e Universitário São João, Porto, Portugal.,Gastroenterology Department, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Susana Lopes
- Gastroenterology Department, Centro Hospitalar e Universitário São João, Porto, Portugal.,Gastroenterology Department, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Mariana V Machado
- Clínica Universitária de Gastrenterologia, Departamento de Gastrenterologia, Faculdade de Medicina, Universidade de Lisboa, Centro Hospitalar Lisboa Norte, Lisboa, Portugal.,Gastroenterology Department, Hospital Vila Franca de Xira, Vila Franca de Xira, Portugal
| | - Joana Carvalho
- Clínica Universitária de Gastrenterologia, Departamento de Gastrenterologia, Faculdade de Medicina, Universidade de Lisboa, Centro Hospitalar Lisboa Norte, Lisboa, Portugal
| | - Teresa Dias
- Department of Internal Medicine, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Arsénio Santos
- Department of Internal Medicine, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Cláudia Agostinho
- Gastroenterology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Pedro Figueiredo
- Gastroenterology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Rafaela Loureiro
- Gastroenterology Department, Central Lisbon Hospital Centre, Lisboa, Portugal
| | - Alexandra Martins
- Gastroenterology Department, Hospital Prof. Doutor Fernando da Fonseca, Lisboa, Portugal
| | - Gonçalo Alexandrino
- Gastroenterology Department, Hospital Prof. Doutor Fernando da Fonseca, Lisboa, Portugal
| | - Isabel Cotrim
- Gastroenterology Department, Centro Hospitalar de Leiria, Leiria, Portugal
| | - Carina Leal
- Gastroenterology Department, Centro Hospitalar de Leiria, Leiria, Portugal
| | - José Presa
- Internal Medicine Department, Liver Unit, Centro Hospitalar de Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Mónica Mesquita
- Internal Medicine Department, Liver Unit, Centro Hospitalar de Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Joana Nunes
- Gastroenterology Department, Hospital Beatriz Ângelo, Lisboa, Portugal
| | - Catarina Gouveia
- Gastroenterology Department, Hospital Beatriz Ângelo, Lisboa, Portugal
| | | | - Ana Luísa Alves
- Gastroenterology Department, Centro Hospitalar de Setúbal, Setúbal, Portugal
| | - Mariana Coelho
- Gastroenterology Department, Centro Hospitalar de Setúbal, Setúbal, Portugal
| | - Luís Maia
- Gastroenterology Department, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Isabel Pedroto
- Gastroenterology Department, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - António Banhudo
- Gastroenterology Department, Unidade Local de Saúde Castelo Branco, Castelo Branco, Portugal
| | - João Sebastião Pinto
- Gastroenterology Department, Unidade Local de Saúde Castelo Branco, Castelo Branco, Portugal
| | | | | | | | - Filipe Calinas
- Gastroenterology Department, Central Lisbon Hospital Centre, Lisboa, Portugal
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Chen CJ, Cheng JS, Wang HE, Huang CW, Hu JH, Chen WT, Chang MY, Ku HP, Lin CY, Chien RN, Chang ML. Identification of the Representative Primary Biliary Cholangitis Cohort in Taiwan: A Comparison of Four Nationwide Cohorts. J Clin Med 2021; 10:jcm10112226. [PMID: 34063859 PMCID: PMC8196594 DOI: 10.3390/jcm10112226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 05/12/2021] [Accepted: 05/19/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND/PURPOSE The rates and outcomes of primary biliary cholangitis (PBC) in Taiwan remain unclear. METHODS A nationwide population-based cohort study (Taiwan National Health Insurance Research Database, 2002-2015) was conducted. Data from four PBC cohorts with various definitions were compared (cohort 1 (C1): ICD-9-CM (571.6); C2: alkaline phosphatase (Alk-P) and antimitochondrial antibody (AMA) measurements; C3: Alk-p and AMA measurements and ursodeoxycholic acid (UDCA) treatment; C4: ICD-9-CM (571.6), Alk-p and AMA measurements and UDCA treatment). RESULTS The average prevalence rate ranged from 9.419/105 (C4) to 307.658/105 (C2), and the female-to-male ratio ranged from 1.192 (C1) to 3.66 (C4). Prevalence rates increased over time in all cohorts. The average incidence rates ranged from 1.456/105 (C4) to 66.386/105 (C2). Incidence rates decreased over time in C1 (-9.09%, p < 0.0001) and C4 (-6.68%, p < 0.0001) and remained steady in the others. C4 had the lowest prevalence and incidence rates and highest female-to-male ratio. Cirrhosis rates ranged from 7.21% (C2) to 39.34% (C4), hepatoma rates ranged from 2.77%(C2) to 6.66%(C1), liver transplantation (LT) rates ranged from 1.07% (C2) to 6.77% (C4), and mortality rates ranged from 18.24% (C2) to 47.36% (C1). C4 had the highest LT (6.77%), osteoporosis (13.87%) and dyslipidemia rates (17.21%). CONCLUSIONS Based on the reported ranges of reasonable rates, female predominance and characteristic outcomes, C4 was the most representative Taiwanese PBC cohort, with average prevalence and incidence rates of 9.419/105 and 1.456/105, respectively, and a female-to-male ratio of 3.66. In a 14-year period, cirrhosis, hepatoma, LT, and mortality were noted in 39.34%, 5.52%, 6.77%, and 34.22% of C4 patients, respectively.
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Affiliation(s)
- Cheng-Jen Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan 333423, Taiwan; (C.-J.C.); (H.-E.W.); (C.-W.H.); (W.-T.C.); (H.-P.K.); (C.-Y.L.); (R.-N.C.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan
| | - Jur-Shan Cheng
- Clinical Informatics and Medical Statistics Research Center, College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan;
- Department of Emergency Medicine, Chang Gung Memorial Hospital, Keelung 204, Taiwan
| | - Haw-En Wang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan 333423, Taiwan; (C.-J.C.); (H.-E.W.); (C.-W.H.); (W.-T.C.); (H.-P.K.); (C.-Y.L.); (R.-N.C.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan
| | - Chun-Wen Huang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan 333423, Taiwan; (C.-J.C.); (H.-E.W.); (C.-W.H.); (W.-T.C.); (H.-P.K.); (C.-Y.L.); (R.-N.C.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan
| | - Jing-Hong Hu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Chang Gung Memorial Hospital, Yunlin 638, Taiwan;
| | - Wei-Ting Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan 333423, Taiwan; (C.-J.C.); (H.-E.W.); (C.-W.H.); (W.-T.C.); (H.-P.K.); (C.-Y.L.); (R.-N.C.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan
| | - Ming-Yu Chang
- Division of Pediatric Neurologic Medicine, Chang Gung Children’s Hospital, Taoyuan 333423, Taiwan;
- Division of Pediatrics, Chang Gung Memorial Hospital, Keelung 20401, Taiwan
| | - Hsin-Ping Ku
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan 333423, Taiwan; (C.-J.C.); (H.-E.W.); (C.-W.H.); (W.-T.C.); (H.-P.K.); (C.-Y.L.); (R.-N.C.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan
| | - Cheng-Yu Lin
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan 333423, Taiwan; (C.-J.C.); (H.-E.W.); (C.-W.H.); (W.-T.C.); (H.-P.K.); (C.-Y.L.); (R.-N.C.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan
| | - Rong-Nan Chien
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan 333423, Taiwan; (C.-J.C.); (H.-E.W.); (C.-W.H.); (W.-T.C.); (H.-P.K.); (C.-Y.L.); (R.-N.C.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan
| | - Ming-Ling Chang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan 333423, Taiwan; (C.-J.C.); (H.-E.W.); (C.-W.H.); (W.-T.C.); (H.-P.K.); (C.-Y.L.); (R.-N.C.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan
- Liver Research Unit, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, No. 5, Fu Hsing Street, Kuei Shan, Taoyuan 333423, Taiwan
- Correspondence: ; Tel.: +886-3-328-1200-8107; Fax: +886-3-327-2236
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Li X, Peng J, Ouyang R, Yang Y, Yu C, Lin H. Risk factors for recurrent primary biliary cirrhosis after liver transplantation: A systematic review and meta-analysis. Dig Liver Dis 2021; 53:309-317. [PMID: 33380381 DOI: 10.1016/j.dld.2020.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 11/03/2020] [Accepted: 12/04/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Recurrent primary biliary cirrhosis (PBC) is frequently observed in patients with PBC after liver transplantation (LT). We performed a meta-analysis to evaluate the risk factors for PBC recurrence. METHODS We searched the EMBASE, PubMed and the Cochrane Library databases for studies published before August 2020. Studies that identified the risk factors of PBC recurrence were eligible for inclusion. We extracted the hazard ratio (HR) data with 95% confidence intervals (CI) for the risk factors. RESULTS Our meta-analysis included 6 studies, which comprised 3184 patients (88.5% females) who underwent liver transplantation from 1982 to 2017, and of these patients, 935 (29.4%) developed PBC recurrence. The use of tacrolimus (HR = 2.62, 95% CI = 1.35, 5.09) and preventive ursodeoxycholic acid (UDCA) (HR = 0.40, 95% CI = 0.28, 0.57) were significantly associated with the risk of PBC recurrence based on the pooled analysis of the results obtained from the multivariate analysis. CONCLUSIONS The use of tacrolimus is associated with an increased risk of PBC recurrence. Preventive UDCA after LT for PBC can help to prevent disease recurrence.
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Affiliation(s)
- Xiaocheng Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hunan University of Medicine, Huaihua, Hunan, PR China
| | - Jing Peng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hunan University of Medicine, Huaihua, Hunan, PR China
| | - Renbin Ouyang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hunan University of Medicine, Huaihua, Hunan, PR China
| | - Yaowei Yang
- Department of General Surgery, University-Town Hospital of Chongqing Medical University, Chongqing, PR China
| | - Chengdong Yu
- Department of Epidemiology & Medical Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, PR China
| | - Huapeng Lin
- Department of Intensive Care Unit, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, PR China.
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Rabiee A, Polanco NAP, Vara AFDL, Levy C. Hispanic Patients with Primary Biliary Cholangitis Have Decreased Access to Care Compared to Non-Hispanics. J Clin Transl Hepatol 2020; 8:391-396. [PMID: 33447522 PMCID: PMC7782121 DOI: 10.14218/jcth.2020.00006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 07/21/2020] [Accepted: 09/18/2020] [Indexed: 12/30/2022] Open
Abstract
Background and Aims: Hispanic patients with primary biliary cholangitis (PBC) have reduced rates of biochemical response to ursodeoxycholic acid (UDCA) and increased risk of disease progression compared to non-Hispanic patients. In this study, we sought to identify differences in demographics, comorbidities, environmental risk factors and socioeconomic status between Hispanic and non-Hispanic patients with PBC. Methods: In a case control study, we analyzed data from Hispanic (n=37 females and 1 male) and non-Hispanic (n=54 females and 4 males) patients with PBC seen at the University of Miami/Jackson Memorial Hospital from January 1998 through January 2013. Data were obtained by filling out a questionnaire either via phone call, mail, or e-mail. Odds ratios were calculated to measure the association between exposure and outcomes. Results: Baseline demographics, environmental risk factors and comorbidities were similar between Hispanic and non-Hispanic patients with PBC. Hispanic patients were less likely to be married and fewer Hispanics had education beyond high school level compared to non-Hispanics. Sixty four percent of Hispanic patients had a household income of less than $50000, compared to 19.5% of non-Hispanics. Fewer Hispanic patients with PBC had health insurance coverage compared to non-Hispanics (86.5% vs. 98.1%; odds ratio: 0.1, 95% confidence interval: 0-0.9). Conclusions: Differences in disease severity and response to therapy observed in prior studies could not be explained by environmental exposures. In addition to genetic variation, socioeconomic discrepancies (access to care) may further explain these differences.
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Affiliation(s)
- Atoosa Rabiee
- Department of Gastroenterology and Hepatology, VA Medical Center, Washington DC, USA
- Correspondence to: Atoosa Rabiee, Department of Gastroenterology and Hepatology, VA Medical Center, 50 Irving St NW, Washington DC 20422, USA. Tel: +1-202-745-8456, E-mail:
| | - Nathalie A Pena Polanco
- Divison of Digestive Health and Liver Diseases Department of Medicine University of Miami Miller School of Medicine USA
| | | | - Cynthia Levy
- Divison of Digestive Health and Liver Diseases Department of Medicine University of Miami Miller School of Medicine USA
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Alvaro D, Carpino G, Craxi A, Floreani A, Moschetta A, Invernizzi P. Primary biliary cholangitis management: controversies, perspectives and daily practice implications from an expert panel. Liver Int 2020; 40:2590-2601. [PMID: 32757367 DOI: 10.1111/liv.14627] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/24/2020] [Accepted: 07/26/2020] [Indexed: 02/13/2023]
Abstract
Primary biliary cholangitis (PBC) is a rare progressive immune-mediated liver disease that, if not adequately treated, may culminate in end-stage disease and need for transplantation. According to current guidelines, PBC is diagnosed in the presence of antimitochondrial antibodies (AMA) or specific antinuclear antibodies, and of a cholestatic biochemical profile, while biopsy is recommended only in selected cases. All patients receive ursodeoxycholic acid (UDCA) in first line; the only registered second-line therapy is obeticholic acid (OCA) for UDCA-inadequate responders. Despite the recent advances in understanding PBC pathogenesis and developing new treatments, many grey areas remain. Six Italian experts selected the following topics as the most urgent to address in PBC management: diagnosis and natural history of PBC: as a portion of the subjects with isolated AMA, normal alkaline phosphatase (ALP) levels and no symptoms of liver disease could have PBC by histology, defining how to manage and follow this population is crucial; role of liver biopsy: recent evidence suggests that biopsy may provide relevant information for risk stratification and prediction of UDCA response, possibly facilitating personalized approaches; risk stratification: the tools for risk stratification are well established, but some issues (eg bile acid dosage in routine practice) remain controversial; and therapy: those in more advanced stages of development are nuclear receptor modulators and fibrates, but more data are needed to plan personalized strategies. In this manuscript, for each topic, current evidence, controversies and future perspectives are summarized with the possible implications for clinical practice.
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Affiliation(s)
- Domenico Alvaro
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Guido Carpino
- Division of Health Sciences, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - Antonio Craxi
- Gastroenterology and Liver Unit, PROMISE, University of Palermo, Palermo, Italy
| | - Annarosa Floreani
- Studioso Senior University of Padova and, Scientific Consultant IRCCS Negrar, Verona, Italy.,Scientific Consultant IRCCS Negrar, Verona, Italy
| | - Antonio Moschetta
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", Bari, Italy
| | - Pietro Invernizzi
- Division of Gastroenterology and Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Monza, Italy
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19
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Leung KK, Deeb M, Hirschfield GM. Review article: pathophysiology and management of primary biliary cholangitis. Aliment Pharmacol Ther 2020; 52:1150-1164. [PMID: 32813299 DOI: 10.1111/apt.16023] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/13/2020] [Accepted: 07/18/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Primary biliary cholangitis (PBC), an immune-mediated disease characterised by destruction of intrahepatic bile ducts, results in progressive damage to the biliary tree, cholestasis and ultimately advanced liver disease. In the last decade, advances in practice have improved clinical care, driven novel therapeutic options and improved risk stratification tools. AIMS To provide an overview of the disease characteristics of PBC and review a patient-centred management approach for the clinical team caring for those with PBC. METHODS We reviewed the current literature and guidelines on PBC with a focus on management and therapies. RESULTS A confident diagnosis of PBC is usually made based on serum liver tests and immune serology. Management of PBC should focus on three main 'process' pillars: (a) treat and risk-stratify through use of biochemical and prognostic criteria; (b) manage concurrent symptoms and other associated diseases; and (c) stage disease, monitor progression and prevent complications. With ongoing complexities in management, including a newly licensed therapy (obeticholic acid) and alternative non-licensed treatments and ongoing clinical trials, discussion with PBC expert centres is encouraged. CONCLUSIONS PBC is a dynamic disease wherein current treatment goals have become appropriately ambitious. Goals of care should prioritise prevention of end-stage liver disease and amelioration of patient symptom burden for all.
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Affiliation(s)
- Kristel K Leung
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Toronto, Toronto, ON, Canada.,Toronto Centre for Liver Disease, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Maya Deeb
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Toronto, Toronto, ON, Canada.,Toronto Centre for Liver Disease, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Gideon M Hirschfield
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Toronto, Toronto, ON, Canada.,Toronto Centre for Liver Disease, University Health Network, University of Toronto, Toronto, Ontario, Canada
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Sahu R, Mishra R, Majee C. An insight into primary biliary cholangitis and its recent advances in treatment: semi-synthetic analogs to combat ursodeoxycholic-acid resistance. Expert Rev Gastroenterol Hepatol 2020; 14:985-998. [PMID: 32674617 DOI: 10.1080/17474124.2020.1797485] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Primary biliary cholangitis (PBC) is a chronic cholestatic liver disease which on progression causes cirrhosis; various studies also suggested that several diseases can co-exist in patients. In existing depiction of disease PBC, apart from entire use of ursodeoxycholic acid (UDCA), several patients need to step forward to liver-transplantation or death due to resistance or non-responder with UDCA monotherapy. AREAS COVERED To overcome this non-respondent treatment, novel bile acid semi-synthetic analogs have been identified which shows their potency against for farnesoid X receptor and transmembrane G protein-coupled receptor-5 which are identified as target for many developing analogs which have desirable pharmacokinetic profiles. EXPERT OPINION A range of studies suggests that adding semisynthetic analogs in therapeutic regime improves liver biochemistries in patients with suboptimal response to UDCA. Thus, the aspire of this review is to abridge and compare therapeutic value and current markets affirm of various bile acids semi-synthetic analogs which certainly are having promising effects in PBC monotherapy or in pooled treatment with UDCA for PBC.
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Affiliation(s)
- Rakesh Sahu
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology (Pharmacy Institute) , Greater Noida, India
| | - Rakhi Mishra
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology (Pharmacy Institute) , Greater Noida, India
| | - Chandana Majee
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology (Pharmacy Institute) , Greater Noida, India
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21
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Murillo Perez CF, Harms MH, Lindor KD, van Buuren HR, Hirschfield GM, Corpechot C, van der Meer AJ, Feld JJ, Gulamhusein A, Lammers WJ, Ponsioen CY, Carbone M, Mason AL, Mayo MJ, Invernizzi P, Battezzati PM, Floreani A, Lleo A, Nevens F, Kowdley KV, Bruns T, Dalekos GN, Gatselis NK, Thorburn D, Trivedi PJ, Verhelst X, Parés A, Janssen HLA, Hansen BE. Goals of Treatment for Improved Survival in Primary Biliary Cholangitis: Treatment Target Should Be Bilirubin Within the Normal Range and Normalization of Alkaline Phosphatase. Am J Gastroenterol 2020; 115:1066-1074. [PMID: 32618657 DOI: 10.14309/ajg.0000000000000557] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION In primary biliary cholangitis (PBC), bilirubin and alkaline phosphatase (ALP) are widely established as independent predictors of prognosis. Current treatment goals do not aim for normalization of surrogate markers because their association with survival has not been defined. METHODS The patient cohort from the GLOBAL PBC Study Group was used, comprising of long-term follow-up data from European and North American centers. Ursodeoxycholic acid-treated and untreated patients with bilirubin levels ≤1 × upper limit of normal (ULN) at baseline or 1 year were included. The association of normal ALP with transplant-free survival was assessed in a subgroup with ALP ≤1.67 × ULN at 1 year. Optimal thresholds of bilirubin and ALP to predict liver transplantation (LT) or death were evaluated. RESULTS There were 2,281 patients included in the time zero cohort and 2,555 patients in the 1-year cohort. The bilirubin threshold with the highest ability to predict LT or death at 1 year was 0.6 × ULN (hazard ratio 2.12, 95% CI 1.69-2.66, P < 0.001). The 10-year survival rates of patients with bilirubin ≤0.6 × ULN and >0.6 × ULN were 91.3% and 79.2%, respectively (P < 0.001). The risk for LT or death was stable below the bilirubin levels of 0.6 × ULN, yet increased beyond this threshold. Ursodeoxycholic acid-induced reduction in bilirubin below this threshold was associated with an 11% improvement in 10-year survival. Furthermore, ALP normalization was optimal, with 10-year survival rates of 93.2% in patients with ALP ≤ 1 × ULN and 86.1% in those with ALP 1.0-1.67 × ULN. DISCUSSION Attaining bilirubin levels ≤0.6 × ULN or normal ALP are associated with the lowest risk for LT or death in patients with PBC. This has important implications for treatment targets.
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Affiliation(s)
- Carla F Murillo Perez
- Toronto Centre for Liver Disease, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
- Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Maren H Harms
- Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Keith D Lindor
- College of Health Solutions, Arizona State University, Phoenix, Arizona
| | - Henk R van Buuren
- Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Gideon M Hirschfield
- Toronto Centre for Liver Disease, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Christophe Corpechot
- Centre de Re[Combining Acute Accent]fe[Combining Acute Accent]rence des Maladies Inflammatoires des VoiesBiliaires, Ho[Combining Circumflex Accent]pital Saint-Antoine, Paris, France
| | - Adriaan J van der Meer
- Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Jordan J Feld
- Toronto Centre for Liver Disease, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Aliya Gulamhusein
- Toronto Centre for Liver Disease, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Willem J Lammers
- Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Cyriel Y Ponsioen
- Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, Netherlands
| | - Marco Carbone
- Division of Gastroenterology and Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milan-Bicocca, Milan, Italy
| | - Andrew L Mason
- Divison of Gastroenterology and Hepatology, University of Alberta, Edmonton, Alberta, Canada
| | - Marlyn J Mayo
- Digestive and Liver Diseases, UT Southwestern Medical Center, Dallas, Texas
| | - Pietro Invernizzi
- Division of Gastroenterology and Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milan-Bicocca, Milan, Italy
| | - Pier Maria Battezzati
- Department of Health Sciences, Universita[Combining Grave Accent] degli Studi di Milano, Milan, Italy
| | - Annarosa Floreani
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Ana Lleo
- Division of Internal Medicine and Hepatology, Humanitas Clinical Research Center IRCSS, Humanitas University, Rozzano (Milan), Italy
| | - Frederik Nevens
- Department of Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Kris V Kowdley
- Liver Care Network, Swedish Medical Center, Seattle, Washington
| | - Tony Bruns
- Department of Internal Medicine IV, Jena University Hospital, Friedrich Schiller University, Jena, Germany
- Department of Internal Medicine III, University Hospital RWTH Aachen, Aachen, Germany
| | - George N Dalekos
- Department of Medicine and Research Laboratory of Internal Medicine, University of Thessaly, Larissa, Greece
| | - Nikolaos K Gatselis
- Department of Medicine and Research Laboratory of Internal Medicine, University of Thessaly, Larissa, Greece
| | - Douglas Thorburn
- The Sheila Sherlock Liver Centre, The Royal Free Hospital, London, United Kingdom
| | - Palak J Trivedi
- National Institute for Health Research Birmingham Biomedical Research Centre and Centre for Liver Research, University of Birmingham, Birmingham, United Kingdom
| | - Xavier Verhelst
- Department of Gastroenterology and Hepatology, Ghent University Hospital, Ghent, Belgium
| | - Albert Parés
- Liver Unit, Hospital Clínic, CIBERehd, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Harry L A Janssen
- Toronto Centre for Liver Disease, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Bettina E Hansen
- Toronto Centre for Liver Disease, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
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Abenavoli L, Procopio AC, Fagoonee S, Pellicano R, Carbone M, Luzza F, Invernizzi P. Primary Biliary Cholangitis and Bile Acid Farnesoid X Receptor Agonists. Diseases 2020; 8:diseases8020020. [PMID: 32532037 PMCID: PMC7348889 DOI: 10.3390/diseases8020020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 12/12/2022] Open
Abstract
Primary biliary cholangitis (PBC) is a chronic autoimmune liver disease characterized by the progressive destruction of the intrahepatic bile ducts. Currently, the first line drug for PBC is ursodeoxycholic acid (UDCA) characterized by anti-apoptotic, anti-inflammatory and protective actions on cholangiocytes. Despite its recognized therapeutic action, 30–40% of PBC patients only partially benefit from UDCA therapy. This has led to the identification of the role of the farnesoid x receptor (FXR) in cholestatic liver diseases and, consequently, to the development of obeticholic acid (OCA), a steroid FXR agonist that has been recently approved for the treatment of PBC. OCA though is not effective in all patients and can cause itch, which eventually induces treatment drop out. Therefore, the search for new therapeutic strategies for PBC has begun. This review, in addition to summarizing the current treatments for PBC, provides overview of the chemical characteristics of new steroid FXR agonist candidates that could represent a future perspective for the treatment of PBC.
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Affiliation(s)
- Ludovico Abenavoli
- Department of Health Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (A.C.P.); (F.L.)
- Correspondence: ; Tel.: +39-0961-369-4387; Fax: +39-0961-754-220
| | - Anna Caterina Procopio
- Department of Health Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (A.C.P.); (F.L.)
| | - Sharmila Fagoonee
- Institute of Biostructures and Bioimaging (CNR) c/o Molecular Biotechnology Center, 10126 Turin, Italy;
| | | | - Marco Carbone
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca; 20126 Milan, Italy; (M.C.); (P.I.)
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, 20900 Monza, Italy
| | - Francesco Luzza
- Department of Health Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (A.C.P.); (F.L.)
| | - Pietro Invernizzi
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca; 20126 Milan, Italy; (M.C.); (P.I.)
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, 20900 Monza, Italy
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23
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Mané F, Cardoso H, Liberal R, Lopes S, Pereira P, Gonçalves R, Macedo G. Treatment response in primary biliary cholangitis: The role of autoimmune hepatitis features. Ann Hepatol 2020; 18:488-493. [PMID: 31036497 DOI: 10.1016/j.aohep.2018.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 11/14/2018] [Accepted: 11/23/2018] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND AIM Primary biliary cholangitis is a rare disease with scarce epidemiological data in Southern Europe. The authors aimed to evaluate treatment response in a cohort of patients. MATERIALS AND METHODS This retrospective observational single-centre study included patients with diagnostic criteria of primary biliary cholangitis. Data on disease presentation, laboratory results, treatment and clinical endpoints were collected and analyzed. RESULTS Fifty-three patients were included, 89% women, with mean age of 62±15 years at diagnosis. The majority was asymptomatic (49%), tested positive for antimitochondrial antibodies (96%) and had increased alkaline phosphatase (median=214U/L). 75% of the patients had liver histology and the majority were in Ludwig's stage I (42%). Autoimmune hepatitis (AIH) features were found in seven patients (13%). All were treated with ursodeoxycholic acid (UDCA) and 56% achieved biochemical response at one year; patients with AIH features exhibited steeper decreases in alkaline phosphatase (p=0.007) and reached the endpoint of 40% decrease in alkaline phosphatase more frequently (p=0.017). CONCLUSION In conclusion a significant proportion of patients failed to achieve an adequate response to UDCA treatment. The response rate of patients with AIH features was better, which could be related to a different phenotype or to the potential impact of immunosuppressive agents.
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Affiliation(s)
- Fernando Mané
- Gastroenterology Department, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Hélder Cardoso
- Gastroenterology Department, Faculty of Medicine, University of Porto, Porto, Portugal; Gastroenterology Department, Hospitalar Center of São João, Porto, Portugal.
| | - Rodrigo Liberal
- Gastroenterology Department, Faculty of Medicine, University of Porto, Porto, Portugal; Gastroenterology Department, Hospitalar Center of São João, Porto, Portugal
| | - Susana Lopes
- Gastroenterology Department, Faculty of Medicine, University of Porto, Porto, Portugal; Gastroenterology Department, Hospitalar Center of São João, Porto, Portugal
| | - Pedro Pereira
- Gastroenterology Department, Faculty of Medicine, University of Porto, Porto, Portugal; Gastroenterology Department, Hospitalar Center of São João, Porto, Portugal
| | - Regina Gonçalves
- Gastroenterology Department, Faculty of Medicine, University of Porto, Porto, Portugal; Gastroenterology Department, Hospitalar Center of São João, Porto, Portugal
| | - Guilherme Macedo
- Gastroenterology Department, Faculty of Medicine, University of Porto, Porto, Portugal; Gastroenterology Department, Hospitalar Center of São João, Porto, Portugal
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Galoosian A, Hanlon C, Zhang J, Holt EW, Yimam KK. Clinical Updates in Primary Biliary Cholangitis: Trends, Epidemiology, Diagnostics, and New Therapeutic Approaches. J Clin Transl Hepatol 2020; 8:49-60. [PMID: 32274345 PMCID: PMC7132015 DOI: 10.14218/jcth.2019.00049] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/21/2019] [Accepted: 01/01/2020] [Indexed: 12/12/2022] Open
Abstract
Primary biliary cholangitis, formerly known as primary biliary cirrhosis, is a chronic, autoimmune, and cholestatic disease ameliorating the biliary epithelial system causing fibrosis and end-stage liver disease, over time. Patients range from an asymptomatic phase early in the disease course, to symptoms of decompensated cirrhosis later in its course. This review focuses on the current consensus on the epidemiology, diagnosis, and management of patients with primary biliary cholangitis. We also discuss established medical management as well as novel and investigational therapeutics in the pipeline for management of PBC.
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Affiliation(s)
- Artin Galoosian
- Department of Medicine, California Pacific Medical Center, San Francisco, CA, USA
| | - Courtney Hanlon
- Department of Medicine, University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | - Julia Zhang
- Department of Medicine, California Pacific Medical Center, San Francisco, CA, USA
| | - Edward W. Holt
- Department of Transplant, Division of Hepatology, California Pacific Medical Center, San Francisco, CA, USA
| | - Kidist K. Yimam
- Director of the Autoimmune Liver Disease Program, Department of Transplant, Division of Hepatology, California Pacific Medical Center, San Francisco, CA, USA
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25
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Galoosian A, Hanlon C, Tana M, Cheung R, Wong RJ. Race/Ethnicity and Insurance-Specific Disparities in In-Hospital Mortality Among Adults with Primary Biliary Cholangitis: Analysis of 2007-2014 National Inpatient Sample. Dig Dis Sci 2020; 65:406-415. [PMID: 31489564 DOI: 10.1007/s10620-019-05809-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 08/15/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Primary biliary cholangitis (PBC) is a progressive autoimmune liver disease that can result in cirrhosis and end-stage liver disease. AIMS We aim to evaluate hospitalization burden and in-hospital mortality among PBC patients in the USA. METHODS Using data from the Nationwide Inpatient Sample from 2007 to 2014, hospitalizations among US adults with PBC were stratified by sex, age, and race/ethnicity. Overall in-hospital mortality was stratified by these variables and adjusted multivariate regression models evaluated for predictors of in-hospital mortality. RESULTS From 2007 to 2014, there were 18,279 hospitalizations among adults with PBC (15.0% male, mean age 63.8 years, 41.3% cirrhosis). Among non-Hispanic whites, the proportion of total PBC hospitalizations increased from 57.8% in 2007 to 71.2% in 2014, compared to 4.1-6.3% for African-Americans, 8.6-10.9% for Hispanics, and 1.7-2.8% for Asians (p < 0.001 for all). While overall in-hospital mortality was low (4.2%), increasing age was associated with higher odds of in-hospital mortality (OR: 1.02, 95% CI 1.01-1.03, p < 0.001). Compared to non-Hispanic white PBC patients, higher in-hospital mortality was observed in African-American PBC patients (OR: 1.40, 95% CI 1.16-2.03, p < 0.05). Compared to patients with private/commercial insurance, significantly higher odds of in-hospital mortality were observed in patients with Medicaid insurance (OR 1.42, 95% CI 1.00-1.99, p < 0.05). CONCLUSION In summary, among adults with PBC hospitalized in the USA from 2007 to 2014, the overall number of hospitalizations is increasing. Significant disparities in in-hospital mortality were observed; African-Americans with PBC and Medicaid patients with PBC have disproportionately higher odds of in-hospital mortality.
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Affiliation(s)
- Artin Galoosian
- Department of Medicine, California Pacific Medical Center, 2351 Clay Street, San Francisco, CA, 94115, USA
| | - Courtney Hanlon
- Department of Medicine, Geisel School of Medicine at Dartmouth, 1 Rope Ferry Road, Hanover, NH, 03755, USA
- Department of Medicine, Keck School of Medicine of USC, Los Angeles, CA, USA
| | - Michele Tana
- Division of Gastroenterology and Hepatology, University of California, San Francisco, CA, USA
- Division of Gastroenterology and Hepatology, UCSF-Zuckerberg San Francisco General Hospital, San Francisco General Hospital, 1001 Potrero Ave, NH-3D, San Francisco, CA, 94110, USA
| | - Ramsey Cheung
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, 300 Pasteur Drive, Palo Alto, CA, 94304, USA
| | - Robert J Wong
- Division of Gastroenterology and Hepatology, Alameda Health System, 1411 East 31st Street, Highland Hospital-Highland Care Pavilion 5th Floor, Oakland, CA, 94602, USA.
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Vespasiani-Gentilucci U, Rosina F, Pace-Palitti V, Sacco R, Pellicelli A, Chessa L, De Vincentis A, Barlattani M, Barlattani A, Feletti V, Mussetto A, Zolfino T, Russello M, Cozzolongo R, Garrucciu G, Niro G, Bacca D, Bertino G, Claar E, Ascione A, D'Adamo G, Adinolfi LE, Scifo G, Izzi A. Rate of non-response to ursodeoxycholic acid in a large real-world cohort of primary biliary cholangitis patients in Italy. Scand J Gastroenterol 2019; 54:1274-1282. [PMID: 31564176 DOI: 10.1080/00365521.2019.1669702] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Background and aim: Response to ursodeoxycholic acid (UDCA) is crucial for the prediction of primary biliary cholangitis (PBC) prognosis, and different response criteria were validated and proposed by reference centers for PBC. To date, rates of non-response to UDCA from real-world series are lacking.Methods: Hepatology/Gastroenterology centers belonging to 'Club Epatologi Ospedalieri' (CLEO) and 'Associazione Italiana Gastroenterologi Ospedalieri' (AIGO) were invited to participate in the study, and asked to extract all patients followed for PBC, without any selection or exclusion, and fill in the database provided.Results: Thirty-four centers were enrolled throughout Italy, for a total of 713 patients. None of these centers, except one, had a hepatology outpatient clinic devoted to the care of patients with autoimmune liver diseases. After excluding 79 cases of PBC/autoimmune hepatitis overlaps, 634 patients were analyzed: mean age, 64.4 ± 12.0 years; 91.2% females; F/M 10.3/1. For patients with at least 1 year of UDCA treatment (583), rates of non-response to UDCA were evaluated according to the Paris-I/-II, Toronto and GLOBE criteria, and compared with those in the original cohorts: 27% vs 39% in Paris-I cohort; 39.6% vs 52% in Paris-II; 20.1% vs 43.5% in Toronto; 15.7% vs 30% in GLOBE (age-specific cutoffs). Mean alkaline phosphatase levels on UDCA treatment, and the age-adjusted prevalence of F3/F4 fibrosis, appeared lower in this PBC population than in reference cohorts.Conclusions: A mean ∼15% better response to UDCA is observed in a real-world PBC population, probably due to migration of some of most severe/advanced cases to PBC referral centers.
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Affiliation(s)
| | | | | | - Rodolfo Sacco
- Department of Gastroenterology, University Hospital, Pisa, Italy
| | | | - Luchino Chessa
- Liver Unit, University Hospital of Cagliari, Cagliari, Italy
| | - Antonio De Vincentis
- Internal Medicine and Hepatology, University Campus Bio-Medico of Rome, Rome, Italy
| | | | | | - Valentina Feletti
- Gastroenterology Unit, Santa Maria Delle Croci Hospital, Ravenna, Italy
| | | | - Teresa Zolfino
- Department of Gastroenterology, Brotzu Hospital, Cagliari, Italy
| | | | - Raffaele Cozzolongo
- Gastroenterology Unit, National Institute of Gastroenterology "S de Bellis" Reseach Hospital, Castellana Grotte (Bari), Italy
| | - Giovanni Garrucciu
- General Medicine and Medical Pathology, Sassari University Hospital, Sassari, Italy
| | - Grazia Niro
- Department of Gastroenterology, Casa Sollievo Della Sofferenza Institute, San Giovanni Rotondo (Foggia), Italy
| | - Donato Bacca
- Internal Medicine Unit, Casarano Hospital, Lecce, Italy
| | - Gaetano Bertino
- Department of Hepatology, University Hospital Policlinico Vittorio Emanuele, Catania, Italy
| | - Ernesto Claar
- Department of Hepatology, Betania Hospital, Napoli, Italy
| | - Antonio Ascione
- Department of Hepatology, Fatebenefratelli Hospital, Napoli, Italy
| | - Giuseppe D'Adamo
- Department of General Medicine, Umberto I Hospital ASL Salerno, Nocera Inferiore, Italy
| | - Luigi Elio Adinolfi
- Department of Internal Medicine, Luigi Vanvitelli University of Campania, Napoli, Italy
| | - Gaetano Scifo
- Department of Infectious Diseases, Umberto I Hospital, Siracusa, Italy
| | - Antonio Izzi
- Department of Infectious Diseases, D. Cotugno Hospital, Napoli, Italy
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Manno V, Gerussi A, Carbone M, Minelli G, Taruscio D, Conti S, Invernizzi P. A National Hospital-Based Study of Hospitalized Patients With Primary Biliary Cholangitis. Hepatol Commun 2019; 3:1250-1257. [PMID: 31497745 PMCID: PMC6719751 DOI: 10.1002/hep4.1407] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 06/18/2019] [Indexed: 12/16/2022] Open
Abstract
Epidemiological studies on primary biliary cholangitis (PBC) have been based primarily on tertiary referral case series. We aimed to estimate the incidence and prevalence and describe comorbidities in hospitalized patients with PBC in Italy using a national hospital-based data source. Data were extracted from the National Hospital Discharge Database, which includes all Italian individuals discharged from any hospital in the country. All adults diagnosed with biliary cirrhosis (International Classification of Diseases, Ninth Revision, Clinical Modification, 571.6) as the primary or secondary diagnosis from 2011 to 2015 were included. To determine whether a comorbidity was either more or less frequent in PBC patients compared with the general hospitalized Italian population, the standardized hospitalization ratio (SHR) was calculated. A total of 5,533 incident cases were identified from 2011 to 2015, 3,790 of whom were females (68.5%; female to male [F:M] ratio, 2.2:1). Prevalent cases were 9,664, of whom 7,209 were females (74.6%; F:M ratio, 2.9:1). The incident rate was 1.03 × 100,000 in males and 1.92 × 100,000 in females; prevalence was 1.89 × 100,000 in males and 4.75 × 100,000 in females. Extrahepatic autoimmune diseases, malignant neoplasms of liver and intrahepatic biliary ducts, and malignant neoplasms of gallbladder and extrahepatic bile ducts were found more frequently in PBC patients than in the general hospitalized population (SHR > 100), whereas cerebrovascular diseases and ischemic heart diseases were less frequent in PBC individuals (SHR < 100). Conclusion: This national study provides a survey of comorbidities associated with PBC. Hospitalized patients with PBC are more likely to have extrahepatic autoimmune diseases, hepatocellular carcinoma, and biliary tract cancers and a low risk of cardiovascular events.
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Affiliation(s)
- Valerio Manno
- Service of Statistics National Institute of Health Rome Italy
| | - Alessio Gerussi
- Division of Gastroenterology and Center for Autoimmune Liver Diseases, Department of Medicine and Surgery University of Milano-Bicocca Monza Italy
| | - Marco Carbone
- Division of Gastroenterology and Center for Autoimmune Liver Diseases, Department of Medicine and Surgery University of Milano-Bicocca Monza Italy
| | - Giada Minelli
- Service of Statistics National Institute of Health Rome Italy
| | - Domenica Taruscio
- National Center for Rare Diseases National Institute of Health Rome Italy
| | - Susanna Conti
- Service of Statistics National Institute of Health Rome Italy
| | - Pietro Invernizzi
- Division of Gastroenterology and Center for Autoimmune Liver Diseases, Department of Medicine and Surgery University of Milano-Bicocca Monza Italy
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Kennedy L, Francis H, Invernizzi P, Venter J, Wu N, Carbone M, Gershwin ME, Bernuzzi F, Franchitto A, Alvaro D, Marzioni M, Onori P, Gaudio E, Sybenga A, Fabris L, Meng F, Glaser S, Alpini G. Secretin/secretin receptor signaling mediates biliary damage and liver fibrosis in early-stage primary biliary cholangitis. FASEB J 2019; 33:10269-10279. [PMID: 31251081 DOI: 10.1096/fj.201802606r] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Primary biliary cholangitis (PBC) primarily targets cholangiocytes and is characterized by liver fibrosis and biliary proliferation. Activation of the secretin (Sct)/secretin receptor (SR) axis, expressed only by cholangiocytes, increases biliary proliferation, liver fibrosis, and bicarbonate secretion. We evaluated the effectiveness of SR antagonist treatment for early-stage PBC. Male and female dominant-negative TGF-β receptor II (dnTGF-βRII) (model of PBC) and wild-type mice at 12 wk of age were treated with saline or the SR antagonist, Sec 5-27, for 1 wk. dnTGF-βRII mice expressed features of early-stage PBC along with enhanced Sct/SR axis activation and Sct secretion. dnTGF-βRII mice had increased biliary proliferation or senescence, inflammation, and liver fibrosis. In dnTGF-βRII mice, there was increased microRNA-125b/TGF-β1/TGF-β receptor 1/VEGF-A signaling. Human early-stage PBC patients had an increase in hepatobiliary Sct and SR expression and serum Sct levels. Increased biliary Sct/SR signaling promotes biliary and hepatic damage during early-stage PBC.-Kennedy, L., Francis, H., Invernizzi, P., Venter, J., Wu, N., Carbone, M., Gershwin, M. E., Bernuzzi, F., Franchitto, A., Alvaro, D., Marzioni, M., Onori, P., Gaudio, E., Sybenga, A., Fabris, L., Meng, F., Glaser, S., Alpini, G. Secretin/secretin receptor signaling mediates biliary damage and liver fibrosis in early-stage primary biliary cholangitis.
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Affiliation(s)
- Lindsey Kennedy
- Research, Central Texas Veterans Health Care System, Temple, Texas, USA.,Department of Medical Physiology, Texas A&M University, College of Medicine, Temple, Texas, USA
| | - Heather Francis
- Research, Central Texas Veterans Health Care System, Temple, Texas, USA.,Department of Medical Physiology, Texas A&M University, College of Medicine, Temple, Texas, USA.,Baylor Scott & White Health Digestive Disease Research Center, Baylor Scott and White Health, Temple, Texas, USA
| | | | - Julie Venter
- Department of Medical Physiology, Texas A&M University, College of Medicine, Temple, Texas, USA
| | - Nan Wu
- Department of Medical Physiology, Texas A&M University, College of Medicine, Temple, Texas, USA
| | - Marco Carbone
- Humanitas Clinical and Research Center, Rozzano (MI), Italy
| | - M Eric Gershwin
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California-Davis, Davis, California, USA
| | | | | | - Domenico Alvaro
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy
| | - Marco Marzioni
- Clinic of Gastroenterology and Hepatology, Universita Politecnica delle Marche, Ancona, Italy
| | - Paolo Onori
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza University of Rome, Rome, Italy
| | - Eugenio Gaudio
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza University of Rome, Rome, Italy
| | - Amelia Sybenga
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Luca Fabris
- Department of Molecular Medicine, University of Padua School of Medicine, Padua, Italy.,Digestive Disease Section, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Fanyin Meng
- Research, Central Texas Veterans Health Care System, Temple, Texas, USA.,Baylor Scott & White Health Digestive Disease Research Center, Baylor Scott and White Health, Temple, Texas, USA
| | - Shannon Glaser
- Department of Medical Physiology, Texas A&M University, College of Medicine, Temple, Texas, USA.,Baylor Scott & White Health Digestive Disease Research Center, Baylor Scott and White Health, Temple, Texas, USA
| | - Gianfranco Alpini
- Research, Central Texas Veterans Health Care System, Temple, Texas, USA.,Department of Medical Physiology, Texas A&M University, College of Medicine, Temple, Texas, USA.,Baylor Scott & White Health Digestive Disease Research Center, Baylor Scott and White Health, Temple, Texas, USA
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29
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Inflammatory Hepatobiliary Diseases. Clin Immunol 2019. [DOI: 10.1016/b978-0-7020-6896-6.00076-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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Parés A, Albillos A, Andrade RJ, Berenguer M, Crespo J, Romero-Gómez M, Vergara M, Vendrell B, Gil A. Primary biliary cholangitis in Spain. Results of a Delphi study of epidemiology, diagnosis, follow-up and treatment. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2018; 110:641-649. [PMID: 30032637 DOI: 10.17235/reed.2018.5665/2018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
INTRODUCTION primary biliary cholangitis (PBC) is a rare disease with limited data regarding its epidemiology and standard clinical management in Spain. OBJECTIVE to gain insight into the epidemiology, patient flow, diagnosis, follow-up and treatment of PBC in Spain. METHODS a review of the literature and Delphi study involving 28 specialists in two rounds of consultations and an in-person results validation workshop. RESULTS there are approximately 9,400 patients with PBC in Spain, with an annual incidence of 0.51-3.86 cases/100,000 population. Albeit, a high error margin may be presumed due to the scarcity of relevant studies on this subject. Several months may elapse from suspicion to a confirmed diagnosis, usually by a gastroenterologist or hepatologist. The role of the liver biopsy for diagnosis and follow-up is heterogeneous. Overall, 95% of patients are treated with ursodeoxycholic acid (UDCA) and response is primarily monitored using the Barcelona criteria. Follow-up is performed every six months, with a heterogeneous use of the various available techniques. No recommendations or second-line commercial drugs are available in the case of no response, inadequate response or intolerance to UDCA. CONCLUSIONS while epidemiology may be estimated based on expert opinions, national registries are needed to provide accurate, up-to-date information on epidemiological parameters, disease stage and response to treatment in patients with PBC. Furthermore, novel therapies are required for selected patient groups.
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Affiliation(s)
- Albert Parés
- Unidad de Hepatología. Hospital Clínic, IDIBAPS, CIBERehd, Universidad de Barcelona, Barcelona
| | - Agustín Albillos
- Servicio Gastroenterología y Hepatología. Hospital Universitario Ramón y Cajal, IRYCIS, CIBERehd, Un
| | - Raul Jesús Andrade
- Unidad Aparato Digestivo. Complejo Hospitalario de Especialidades Virgen de la Victoria, Málaga
| | - Marina Berenguer
- Servicio Aparato Digestivo. Hospital Universitari i Politècnic la Fe, Universidad de Valencia, CIBER
| | - Javier Crespo
- Servicio Aparato Digestivo. Hospital Universitario Marqués de Valdecilla, Santander
| | | | - Mercè Vergara
- Unidad de Hepatología. Servicio Aparato Digestivo. Parc Taulí Sabadell. Institut d'Investigació i In
| | | | - Alicia Gil
- CEO Market Access, Omakase Consulting, España
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Factors Associated With Prevalence and Treatment of Primary Biliary Cholangitis in United States Health Systems. Clin Gastroenterol Hepatol 2018; 16:1333-1341.e6. [PMID: 29066370 DOI: 10.1016/j.cgh.2017.10.018] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 10/06/2017] [Accepted: 10/07/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Reported prevalence of primary biliary cholangitis (PBC) varies widely. Demographic features and treatment patterns are not well characterized in the United States (US). We analyzed data from the Fibrotic Liver Disease (FOLD) Consortium, drawn from 11 geographically diverse health systems, to investigate epidemiologic factors and treatment of PBC in the US. METHODS We developed a validated electronic health record-based classification model to identify patients with PBC in the FOLD database from 2003 through 2014. We used multivariable modeling to assess the effects of factors associated with PBC prevalence and treatment with ursodeoxycholic acid (UDCA). RESULTS We identified 4241 PBC cases among over 14.5 million patients in FOLD health systems; median follow-up was 5 years. Accuracy of the classification model was excellent, with an area under the receiver operating characteristic curve value of 93%, 94% sensitivity, and 87% specificity. The average patient age at diagnosis was 60 years; 21% were Hispanic, 8% were African American, and 7% were Asian American/American Indian/Pacific Islander. Half of the cohort (49%) had elevated levels of alkaline phosphatase, and overall, 70% were treated with UDCA. The estimated 12-year prevalence of PBC was 29.3 per 100,000 persons. Adjusted prevalence values were highest among women (42.8 per 100,000), White patients (29.6 per 100,000), and patients 60-70 years old (44.7 per 100,000). Prevalence was significantly lower among men and African Americans (10.7 and 19.7 per 100,000, respectively) than women and whites; men and African Americans were also less likely to receive UDCA treatment (odds ratios, 0.6 and 0.5, respectively; P < .05). CONCLUSIONS In an analysis of a large cohort of patients with PBC receiving routine clinical care, we observed significant differences in PBC prevalence and treatment by gender, race, and age.
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32
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Ray JL, Kopec AK, Joshi N, Cline-Fedewa H, Lash LH, Williams KJ, Leung PS, Gershwin ME, Luyendyk JP. Trichloroethylene Exposure Reduces Liver Injury in a Mouse Model of Primary Biliary Cholangitis. Toxicol Sci 2018; 156:428-437. [PMID: 28115651 DOI: 10.1093/toxsci/kfw264] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Trichloroethylene (TCE) is a persistent environmental contaminant proposed to contribute to autoimmune disease. Experimental studies in lupus-prone MRL+/+ mice have suggested that TCE exposure can trigger autoimmune hepatitis. The vast majority of studies examining the connection between TCE and autoimmunity utilize this model, and the impact of TCE exposure in other established models of autoimmune liver disease is not known. We tested the hypothesis that TCE exposure exacerbates experimental hepatic autoimmunity in dominant negative transforming growth factor beta receptor type II (dnTGFBRII) mice, which develop serological and histological features resembling human primary biliary cholangitis. Female 8-week-old wild-type and dnTGFBRII mice were exposed to TCE (0.5 mg/ml) or vehicle (1% ethoxylated castor oil) in the drinking water for 12 or 22 weeks. Liver histopathology in 20- and 30-week-old wild-type mice was unremarkable irrespective of treatment. Mild portal inflammation was observed in vehicle-exposed 20-week-old dnTGFBRII mice and was not exacerbated by TCE exposure. Vehicle-exposed 30-week-old dnTGFBRII mice developed anti-mitochondrial antibodies, marked hepatic inflammation with necrosis, and hepatic accumulation of both B and T lymphocytes. To our surprise, TCE exposure dramatically reduced hepatic parenchymal inflammation and injury in 30-week-old dnTGFBRII mice, reflected by changes in hepatic proinflammatory gene expression, serum chemistry, and histopathology. Interestingly, TCE did not affect hepatic B cell accumulation or induction of the anti-inflammatory cytokine IL10. These data indicate that TCE exposure reduces autoimmune liver injury in female dnTGFBRII mice and suggests that the precise effect of environmental chemicals in autoimmunity depends on the experimental model.
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Affiliation(s)
- Jessica L Ray
- Department of Pathobiology and Diagnostic Investigation
| | - Anna K Kopec
- Department of Pathobiology and Diagnostic Investigation.,Institute for Integrative Toxicology
| | - Nikita Joshi
- Department of Pathobiology and Diagnostic Investigation.,Institute for Integrative Toxicology.,Department of Pharmacology and Toxicology, Michigan State University, East Lansing, Michigan
| | | | - Lawrence H Lash
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, Michigan
| | | | - Patrick S Leung
- Department of Internal Medicine Division of Rheumatology, Allergy and Clinical Immunology, University of California Davis School of Medicine, Davis, California
| | - M Eric Gershwin
- Department of Internal Medicine Division of Rheumatology, Allergy and Clinical Immunology, University of California Davis School of Medicine, Davis, California
| | - James P Luyendyk
- Department of Pathobiology and Diagnostic Investigation.,Institute for Integrative Toxicology.,Department of Pharmacology and Toxicology, Michigan State University, East Lansing, Michigan
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33
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Chronic Autoimmune Epithelitis in Sjögren's Syndrome and Primary Biliary Cholangitis: A Comprehensive Review. Rheumatol Ther 2017; 4:263-279. [PMID: 28791611 PMCID: PMC5696286 DOI: 10.1007/s40744-017-0074-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Indexed: 12/12/2022] Open
Abstract
Within the spectrum of autoimmune diseases, Sjögren's syndrome and primary biliary cholangitis are exemplary and can be coined as chronic epithelitis based on their frequent coexistence in clinical practice and the highly specific immune-mediated injury of the small bile ducts and the exocrine glands. The pathogenic mechanisms underlying the diseases are similar, with apoptosis being the key element leading to organ-specific immune-mediated injury directed against the small bile ducts and salivary gland epithelia, respectively along with similar epidemiological features, such as female predominance and the age of onset in the fifth decade of life. Indeed, novel insights into the pathogenesis of the diseases have been obtained in recent years, including a better definition of the role of B and T cells, particularly Th17 cells, and the mechanisms of autoantibody-mediated tissue injury, with anti-mitochondrial antibodies and SS-A/SS-B being identified as specific for primary biliary cholangitis and Sjögren's syndrome, respectively. These findings have opened the possibility to new targeted therapies, but most clinical needs remain unmet, particularly from a therapeutic standpoint where options diverge, with bile acids being the predominant treatment strategy in primary biliary cholangitis and immunomodulators being used to treat Sjögren's syndrome. Here we provide a comprehensive review of the most recent findings on the pathogenesis, clinical manifestations and therapeutic options for Sjögren's syndrome and primary biliary cholangitis, respectively, while stressing the common traits between these conditions. Our cumulative hypothesis is that similarities outnumber differences and that this may prove advantageous towards a better management of patients.
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34
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Primary Biliary Cholangitis: advances in management and treatment of the disease. Dig Liver Dis 2017; 49:841-846. [PMID: 28546061 DOI: 10.1016/j.dld.2017.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 04/28/2017] [Accepted: 05/02/2017] [Indexed: 12/11/2022]
Abstract
Primary Biliary Cholangitis, previously known as Primary Biliary Cirrhosis, is a rare disease, which mainly affects women in their fifth to seventh decades of life. It is a chronic autoimmune disease characterized by a progressive damage of interlobular bile ducts leading to ductopenia, chronic cholestasis and bile acids retention. Even if the disease usually presents a long asymptomatic phase and a slow progression, in many patients it may progress faster toward cirrhosis and its complications. The 10year mortality is greater than in diseases such as human immunodeficiency virus/Hepatitis C Virus coinfection and breast cancer. Ursodeoxycholic acid is the only treatment available today, but even if effective in counteracting the disease progression for the majority of patients, in approximately 40% is not able to decrease effectively the alkaline phosphatase, a surrogate marker of disease activity. Recently, obeticholic acid received the European Medicines Agency conditional approval, as add on treatment in patients non responders or intolerant to ursodeoxycholic acid. The present paper illustrates the opinion of a working group, composed by clinical pharmacologists, gastroenterologists/hepatologists with specific expertise on Primary Biliary Cholangitis and patient associations, on the state of the art and future perspectives of the disease management. The agreement on the document was reached through an Expert Meeting.
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35
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Fan X, Wang T, Shen Y, Xi X, Yang L. Underestimated Male Prevalence of Primary Biliary Cholangitis in China: Results of a 16-yr cohort study involving 769 patients. Sci Rep 2017; 7:6560. [PMID: 28747696 PMCID: PMC5529550 DOI: 10.1038/s41598-017-06807-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 06/16/2017] [Indexed: 02/05/2023] Open
Abstract
For primary biliary cholangitis (PBC), a sex ratio was reported to be significantly lower than previously cited in the West; we sought to evaluate sex ratio and long-term outcomes in PBC by studying a PBC cohort at a high-volume hospital from January 2001 to July 2016. A retrospective analysis including 769 PBC patients was conducted. The gender ratio was 6.1:1. Of the patients, 30.6% had one or more extrahepatic autoimmune (EHA) conditions. The proportion of patients with decompensated PBC at diagnosis increased from 25.0% in period 1 to 47.0% in period 4 (p < 0.05). Of the 420 patients without complications on presentation, the Kaplan-Meier estimate revealed distinct outcomes between non-cirrhotic PBC and cirrhotic PBC, with estimated mean survival times of 145.1 months and 104.5 months, respectively (p < 0.001). According to a subgroup analysis, gender and anti-mitochondrial antibody (AMA) status did not affect long-term prognosis, whereas patients with EHA conditions showed better prognoses. This study reveals evolving trends in male prevalence similar to their Western counterparts. Cirrhotic PBC patients were distinct from those with non-cirrhotic PBC at diagnosis based on difference in long-term outcome.
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Affiliation(s)
- Xiaoli Fan
- Division of Gastroenterology & Hepatology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Tingting Wang
- Division of Gastroenterology & Hepatology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yi Shen
- Division of Gastroenterology & Hepatology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaotan Xi
- Division of Gastroenterology & Hepatology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Li Yang
- Division of Gastroenterology & Hepatology, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Polymorphisms of IL12RB2 May Affect the Natural History of Primary Biliary Cholangitis: A Single Centre Study. J Immunol Res 2017; 2017:2185083. [PMID: 28299343 PMCID: PMC5337364 DOI: 10.1155/2017/2185083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 01/30/2017] [Indexed: 01/29/2023] Open
Abstract
Background. Recent GWAS in primary biliary cholangitis (PBC) showed strong associations with SNPs located within interleukin-12 receptor (IL12R) beta-2 (IL12RB2) gene. Aims. We assessed whether genetic variation of IL12RB2 is associated with laboratory and clinical features of PBC. Methods. Genomic DNA was isolated from 306 patients with PBC and 258 age/gender-matched controls. PBC-specific anti-mitochondrial antibodies (AMA) were tested in all subjects by ELISA. Two SNPs, rs3790567 and rs6679356, of IL12RB2 were genotyped using the MGB-TaqMan SNP assay. Results. Despite comparable age at diagnosis of cirrhotic and noncirrhotic PBC patients, allele A of rs3790567 and allele C of rs6679356 were overrepresented in the former rather than the latter group (p = 0.0009 and p = 0.002, resp.). The risk of cirrhosis at presentation increased when allele A and allele C coexisted. AMA-M2 titres were significantly higher in AA homozygotes of rs3790567 compared to GG homozygotes (132 ± 54 versus 103 ± 62, p = 0.02) and in rs6679356 when C allele was present (p = 0.038). There were no other significant associations between IL12RB2 polymorphisms and laboratory or clinical features. Conclusion. In this first study analyzing phenotypic features of PBC carriers of the IL12RB2 polymorphisms, we found that carriers are more frequently cirrhotic at diagnosis and have significantly higher titres of AMA.
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37
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Terziroli Beretta-Piccoli B, Guillod C, Marsteller I, Blum R, Mazzucchelli L, Mondino C, Invernizzi P, Gershwin ME, Mainetti C. Primary Biliary Cholangitis Associated with Skin Disorders: A Case Report and Review of the Literature. Arch Immunol Ther Exp (Warsz) 2017; 65:299-309. [DOI: 10.1007/s00005-016-0448-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 12/07/2016] [Indexed: 01/12/2023]
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38
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Bowlus CL, Kenney JT, Rice G, Navarro R. Primary Biliary Cholangitis: Medical and Specialty Pharmacy Management Update. J Manag Care Spec Pharm 2016; 22:S3-S15. [PMID: 27700211 PMCID: PMC10408407 DOI: 10.18553/jmcp.2016.22.10-a-s.s3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Chronic liver disease and cirrhosis are a leading cause of morbidity and mortality in the United States. Primary biliary cholangitis (PBC), previously known as primary biliary cirrhosis and which has been designated an orphan condition, is a chronic autoimmune disease resulting in the destruction of the small bile ducts in the liver. Without effective treatment, disease progression frequently leads to liver failure and death. Until May 2016, the only FDA-approved treatment for PBC was ursodiol (UDCA), an oral hydrophilic bile acid, which can slow progression of liver damage due to PBC. However, 1 out of 3 patients taking UDCA has an inadequate biochemical response, leading to increased risk of disease progression, liver transplantation, and mortality. Given this unmet clinical need, new therapies are in development for the treatment of PBC. To provide pharmacists with an overview of the latest research on the pathophysiology of PBC and potential new treatment options and to highlight medical and specialty pharmacy approaches to managing access to drugs to treat orphan diseases such as PBC, a 2-hour satellite symposium was presented in conjunction with the 2015 Academy of Managed Care Pharmacy (AMCP) Nexus meeting. Although obeticholic acid was approved by the FDA for the treatment of PBC in May 2016, this development occurred after the symposium presentation. The symposium was supported by an independent educational grant from Intercept Pharmaceuticals and was managed by Analysis Group. Robert Navarro, PharmD, moderated the CPE-accredited symposium titled "Medical and Specialty Pharmacy Management Update on Primary Biliary Cirrhosis." Expert panelists included Christopher L. Bowlus, MD; James T. Kenney, RPh, MBA; and Gary Rice, RPh, MS, MBA, CSP. OBJECTIVE To summarize the educational satellite symposium presentations and discussions. SUMMARY Autoimmune liver diseases, including PBC, are responsible for 15% of all liver transplants performed and an equal percentage of deaths related to liver disease. UDCA is the only FDA-approved therapy for treatment of PBC and is considered the standard of care. Nevertheless, many patients do not respond to UDCA, creating the need for new therapeutic options to improve clinical outcomes for PBC patients with inadequate response to treatment. While several agents are being studied in combination with UDCA, monotherapy with the novel agent obeticholic acid, a farnesoid X receptor agonist, has also shown promising results. Health plans are anticipated to assign any newly introduced therapy for the treatment of PBC to specialty pharmacy given its orphan disease status. This assignment enables the health plan to receive disease education, which is particularly important when new drugs are indicated for orphan diseases, and assistance with designing appropriate prior authorization criteria. The clinical value of any new therapeutic options that will inform formulary decisions and prior authorization criteria will be assessed based on evidence of efficacy, safety, and tolerability, among other factors, such as the potential to reduce or delay medical resource utilization (e.g., liver transplant). Key considerations for prior authorization of a new therapy will be determining which PBC patients are appropriate candidates for the new therapy and developing criteria for that determination. These are likely to include clinical diagnostic criteria and degree of response to prior treatment with UDCA. Initially, any new therapy would likely be positioned as noncovered until appropriate prior authorization criteria are established. CONCLUSIONS PBC is a chronic liver disease with significant morbidity and mortality, as well as a significant burden on the health care system if the disease progresses to the point at which a liver transplant is needed. Although UDCA, the current standard of care, has improved outcomes for many patients, others have an inadequate response to this treatment. This symposium discussed these issues and also addressed the overall treatment paradigm for orphan drug therapies, key implications for patient management, and the role of specialty pharmacy management and any associated needs both in general and specifically for new therapeutic options for PBC.
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39
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Gulamhusein AF, Juran BD, Atkinson EJ, McCauley B, Schlicht E, Lazaridis KN. Low incidence of primary biliary cirrhosis (PBC) in the first-degree relatives of PBC probands after 8 years of follow-up. Liver Int 2016; 36:1378-82. [PMID: 27062298 PMCID: PMC5014367 DOI: 10.1111/liv.13143] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 03/31/2016] [Indexed: 01/06/2023]
Abstract
BACKGROUND & AIMS Primary biliary cirrhosis (PBC) is characterized by chronic cholestasis and disease-specific antimitochondrial antibodies (AMA). A high prevalence of AMAs in first-degree relatives (FDRs) of PBC probands has been reported, although the natural history of such patients has not been described. We aimed to assess the risk of developing PBC in AMA+ FDRs of patients with PBC. METHODS First-degree relatives recruited to the Mayo Clinic PBC Genetic Epidemiology Registry and Biorepository were followed for disease onset after recruitment. Development of PBC was ascertained via self-report during a telephone interview and/or via proband report on a questionnaire. Chi-squared test and t-test were used to assess the differences between categorical and continuous variables respectively. A mixed-effects model was used to assess the change in biochemical profiles over time. RESULTS Forty AMA+ and 423 AMA- subjects were included and followed for a median of 8.9 and 8.4 years respectively. Overall, 3% (n = 15) of FDRs were diagnosed with PBC, and AMA+ FDRs had a higher risk than AMA- FDRs (24% vs. 0.7%, P < 0.01). However, among undiagnosed FDRs, only 4% of AMA+ (n = 1) and 0.4% of AMA- (n = 1) FDRs were diagnosed with PBC (P = 0.17) during the follow-up period. None of the AMA+ FDRs with normal alkaline phosphatase at baseline developed PBC in follow-up. CONCLUSIONS Our results suggest a low risk of developing PBC over time in FDRs of patients with PBC, particularly those without biochemical evidence of cholestasis at baseline. These data are useful in counselling and reassuring relatives of their overall favourable prognosis.
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Affiliation(s)
- Aliya F. Gulamhusein
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Brian D. Juran
- Division of Gastroenterology and Hepatology, Center for Basic Research in Digestive Diseases, Mayo Clinic, Rochester, Minnesota, USA
| | - Elizabeth J. Atkinson
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Bryan McCauley
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Erik Schlicht
- Division of Gastroenterology and Hepatology, Center for Basic Research in Digestive Diseases, Mayo Clinic, Rochester, Minnesota, USA
| | - Konstantinos N. Lazaridis
- Division of Gastroenterology and Hepatology, Center for Basic Research in Digestive Diseases, Mayo Clinic, Rochester, Minnesota, USA
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40
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Evolving Trends in Female to Male Incidence and Male Mortality of Primary Biliary Cholangitis. Sci Rep 2016; 6:25906. [PMID: 27192935 PMCID: PMC4872151 DOI: 10.1038/srep25906] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 03/16/2016] [Indexed: 12/13/2022] Open
Abstract
Primary biliary cholangitis (PBC) has been regarded as female-predominant without evidence of gender difference in survival. We aimed to compare the overall survival, incidence and prevalence of PBC in two well defined population-based studies over a recent decade, considering also sex ratios and mortality. We have taken advantage of population-wide records, during 2000–2009, in Lombardia, Northern Italy, and Denmark. We focused on the incident cases of PBC, including gender and outcome, among 9.7 million inhabitants of Lombardia and 5.5 million of Denmark. In Lombardia there were 2,970 PBC cases with a female:male ratio of 2.3:1. The age/sex-adjusted annual incidence of PBC was 16.7 per million. Point prevalence was 160 per million on January 1st 2009. In Denmark there were 722 cases of incident PBC, female:male ratio was 4.2:1, and the annual incidence was 11.4 per million, a point prevalence of 115 per million in 2009. Cox regression multivariate analysis identified male sex as an independent predictor of all-cause mortality in both Italian (HR 2.36) and Danish population (HR 3.04). Our data indicate for PBC a sex ratio significantly lower than previously cited, a reversal of the usual latitudinal difference in prevalence and a surprisingly higher overall mortality for male patients.
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Tang R, Wei Y, Li Z, Chen H, Miao Q, Bian Z, Zhang H, Wang Q, Wang Z, Lian M, Yang F, Jiang X, Yang Y, Li E, Seldin MF, Gershwin ME, Liao W, Shi Y, Ma X. A Common Variant in CLDN14 is Associated with Primary Biliary Cirrhosis and Bone Mineral Density. Sci Rep 2016; 6:19877. [PMID: 26842849 PMCID: PMC4740766 DOI: 10.1038/srep19877] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 12/16/2015] [Indexed: 12/22/2022] Open
Abstract
Primary biliary cirrhosis (PBC), a chronic autoimmune liver disease, has been associated with increased incidence of osteoporosis. Intriguingly, two PBC susceptibility loci identified through genome-wide association studies are also involved in bone mineral density (BMD). These observations led us to investigate the genetic variants shared between PBC and BMD. We evaluated 72 genome-wide significant BMD SNPs for association with PBC using two European GWAS data sets (n = 8392), with replication of significant findings in a Chinese cohort (685 cases, 1152 controls). Our analysis identified a novel variant in the intron of the CLDN14 gene (rs170183, Pfdr = 0.015) after multiple testing correction. The three associated variants were followed-up in the Chinese cohort; one SNP rs170183 demonstrated consistent evidence of association in diverse ethnic populations (Pcombined = 2.43 × 10(-5)). Notably, expression quantitative trait loci (eQTL) data revealed that rs170183 was correlated with a decline in CLDN14 expression in both lymphoblastoid cell lines and T cells (Padj = 0.003 and 0.016, respectively). In conclusion, our study identified a novel PBC susceptibility variant that has been shown to be strongly associated with BMD, highlighting the potential of pleiotropy to improve gene discovery.
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Affiliation(s)
- Ruqi Tang
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Yiran Wei
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Zhiqiang Li
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200030, China
| | - Haoyan Chen
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Qi Miao
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Zhaolian Bian
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Haiyan Zhang
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Qixia Wang
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Zhaoyue Wang
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Min Lian
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Fan Yang
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Xiang Jiang
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Yue Yang
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Enling Li
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
| | - Michael F. Seldin
- Department of Biochemistry and Molecular Medicine, University of California at Davis, Davis, CA 95616, USA
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis School of Medicine, Genome and Biomedical Sciences Facility, 451 Health Sciences Drive, Suite 6510, Davis, CA 95616, USA
| | - M. Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis School of Medicine, Genome and Biomedical Sciences Facility, 451 Health Sciences Drive, Suite 6510, Davis, CA 95616, USA
| | - Wilson Liao
- Department of Dermatology, University of California San Francisco School of Medicine, 1701 Dividadero Street, San Francisco, CA 94415, USA
| | - Yongyong Shi
- Department of Biochemistry and Molecular Medicine, University of California at Davis, Davis, CA 95616, USA
| | - Xiong Ma
- State Key Laboratory for Oncogenes and Related Genes, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China
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Extrahepatic malignancies in primary biliary cirrhosis: a comparative study at two European centers. Clin Rev Allergy Immunol 2016; 48:254-62. [PMID: 25205363 DOI: 10.1007/s12016-014-8446-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Limited information and divergent results are available on the prevalence/incidence, survival, and risk factors for developing extrahepatic malignancies (EMs) in primary biliary cirrhosis (PBC). The aim of the study was to analyze the epidemiology and survival rates for EM in PBC patients. The study was conducted on two series of patients followed up at two European centers (361 in Padova, Italy, and 397 in Barcelona, Spain) for a mean 7.7 ± 7 and 12.2 ± 7 years, respectively. The cancer incidence was compared with the standardized incidence ratios (SIRs) calculated using the Cancer Registry of the Veneto Region (Italy) and the Cancer Registry of Tarragona (Spain). Seventy-two patients developed EM. The prevalence of cases was similar in Padova (9.7 %) and Barcelona (9.4 %). The overall cancer incidence was similar to the expected incidence for the general population in the same geographical area (SIR = 1.2), and so was the crude EM rate (855.01 vs 652.86 per 100,000 patient-years, respectively, RR = 1.3). Logistic regression analysis showed that advanced histological stage and extrahepatic autoimmune diseases were significantly associated with the onset of EM. Survival was similar for PBC patients with and without EM (p = n.s.), and actual survival was similar to the one predicted by the Mayo model. The incidence of EM in PBC patients was found similar in Italy and Spain and no different from that of the general population. Advanced histological stage and extrahepatic autoimmune disease were risk factors significantly associated with EM developing in PBC. The onset of cancer in PBC patients does not influence the natural history of their liver disease.
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Floreani A, Franceschet I, Cazzagon N, Spinazzè A, Buja A, Furlan P, Baldo V, Gershwin ME. Extrahepatic autoimmune conditions associated with primary biliary cirrhosis. Clin Rev Allergy Immunol 2016; 48:192-7. [PMID: 24809534 DOI: 10.1007/s12016-014-8427-x] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
There is a paucity of information on extrahepatic autoimmune (EHA) conditions associated with primary biliary cirrhosis (PBC) and on the impact of EHA conditions on PBC patients' survival. Our goal was to assess the association between PBC and other autoimmune diseases and the impact of EHA conditions on the natural history of PBC. We took advantage of 361 consecutive PBC patients enrolled between 1975 and 2012 (22 males, 339 females; mean follow-up 8 ± 6.9 years). Any associated EHA conditions, PBC histological stage at diagnosis, biochemical data, physiological history, and extrahepatic malignancies developing during the follow-up were recorded. Survival was analyzed by means of Kaplan-Meier curves. Importantly, 221 patients (61.2 %) had at least one EHA conditions: 45 patients (20.4 %) had Hashimoto thyroiditis; 7 (3.2 %) had Graves' thyroiditis; 65 (29.4 %) had Raynaud's phenomenon; 124 (56.1 %) had Sjogren's syndrome; 8 (3.6 %) had systemic lupus erythematosus; 22 (9.9 %) had scleroderma; 22 (9.9 %) had rheumatoid arthritis; 18 (8.1 %) had cutaneous autoimmune diseases; 8 (3.6 %) had vasculitis; 5 (1.4 %) had celiac disease; and 25 (13.1 %) had other EHA conditions. The proportion of patients with associated EHA conditions enrolled during representative periods (1975-1980, 1981-1990, 1991-2000, 2001-2010, 2011-2012) remained stable. No differences emerged between patients with versus without EHA conditions in terms of mean age at PBC diagnosis, antimitochondrial antibody (AMA), or antinuclear antibody (ANA) positivity, histological stage at diagnosis, smoking habits, alcohol consumption, or BMI >25. Multiple logistic regression analysis showed that only female gender was significantly associated with positivity for EHA conditions (OR 4.8; 95 % CI 1.6-13.7, p = 0.004). The mean survival after the diagnosis of PBC was much the same in patients with and without EHA conditions. In conclusion, EHA conditions are often associated with PBC, especially in female patients, but they do not reduce patient survival.
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Affiliation(s)
- Annarosa Floreani
- Department of Surgery, Oncology and Gastroenterology-DiSCOG, University of Padova, Via Giustiniani, 2, 35128, Padova, Italy,
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Abstract
Primary biliary cirrhosis (PBC) is characterized histologically by the presence of chronic non-suppurative destructive cholangitis of the small interlobular bile duct, leading to chronic progressive cholestasis. Most PBC patients are asymptomatic and have a reasonable prognosis, but a few develop esophageal varices or jaundice, rapidly leading to liver failure within a short period. As multiple factors appear to be involved in the onset of PBC, its clinical course may be complicated. Therefore, the use of an animal model would be valuable for clarifying the pathogenesis of PBC. Here, we review recent data of selected PBC models, particularly spontaneous models, xenobiotic immunized models, and infection-triggered models. There are a number of spontaneous models: the NOD.c3c4, dominant-negative TGF-β receptor II, IL-2Rα-/-, Scurfy, and Ae2a,b-/- mice. These animal models manifest distinct clinical and immunological features similar, but also often different, from those of human PBC. It is clear that a combination of genetic predisposition, environmental factors, and immunological dysfunction contribute to the pathogenesis of PBC. The diverse clinical course and complexity of the immunological mechanisms of PBC cannot be fully recapitulated solely any single animal model. The challenge remains to develop a progressive PBC disease model that exhibits fibrosis, and ultimately hepatic failure.
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Abstract
The peer-reviewed publications in the field of autoimmunity published in 2013 represented a significant proportion of immunology articles and grew since the previous year to indicate that more immune-mediated phenomena may recognize an autoimmune mechanism and illustrated by osteoarthritis and atherosclerosis. As a result, our understanding of the mechanisms of autoimmunity is becoming the paradigm for translational research in which the progress in disease pathogenesis for both tolerance breakdown and inflammation perpetuation is rapidly followed by new treatment approaches and clinical management changes. The similarities across the autoimmune disease spectrum outnumber differences, particularly when treatments are compared. Indeed, the therapeutics of autoimmune diseases are based on a growing armamentarium that currently includes monoclonal antibodies and small molecules which act by targeting molecular markers or intracellular mediators with high specificity. Among the over 100 conditions considered as autoimmune, the common grounds are well illustrated by the data reported for systemic lupus erythematosus and rheumatoid arthritis or by the plethora of studies on Th17 cells and biomarkers, particularly serum autoantibodies. Further, we are particularly intrigued by studies on the genomics, epigenetics, and microRNA at different stages of disease development or on the safe and effective use of abatacept acting on the costimulation of T and B cells in rheumatoid arthritis. We are convinced that the data published in 2013 represent a promising background for future developments that will exponentially impact the work of laboratory and clinical scientists over the next years.
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Kouroumalis E, Notas G. Primary biliary cirrhosis: From bench to bedside. World J Gastrointest Pharmacol Ther 2015; 6:32-58. [PMID: 26261733 PMCID: PMC4526840 DOI: 10.4292/wjgpt.v6.i3.32] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 11/19/2014] [Accepted: 05/18/2015] [Indexed: 02/06/2023] Open
Abstract
Primary biliary cirrhosis (PBC) is a chronic non-suppurative destructive intrahepatic cholangitis leading to cirrhosis after a protractive non cirrhotic stage. The etiology and pathogenesis are largely unknown and autoimmne mechanisms have been implicated to explain the pathological lesions. Many epitopes and autoantigens have been reported as crucial in the pathophysiology of the disease and T and B cells abnormalities have been described, the exact pathways leading to the destruction of small intrahepatic ductules are mostly speculative. In this review we examined the various epidemiologal and geoepidemiological data as well as the complex pathogenetic aspects of this disease, focusing on recent in vivo and in vitro studies in this field. Initiation and progression of PBC is believed to be a multifactorial process with strong infuences from the patient’s genetic background and by various environmental factors. The role of innate and adaptive immunity, including cytokines, chemokines, macrophages and the involvement of apoptosis and reactive oxygen species are outlined in detailed. The current pathogenetic aspects are presented and a novel pathogenetic theory unifying the accumulated clinical information with in vitro and in vivo data is formulated. A review of clinical manifestations and immunological and pathological diagnosis was presented. Treatment modalities, including the multiple mechanisms of action of ursodeoxycholate were finally discussed.
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Abstract
Uncommon or orphan diseases are less frequently addressed in mainstream medical journals and, as a consequence, their understanding and clinical recognition may rely on case series or anecdotal data with limited guidelines and management directions. The study of selected underrepresented autoimmune and allergy conditions is the subject of the present issue of Clinical Reviews in Allergy and Immunology to provide peculiar perspectives on common and rare themes. First, allergy remains a major concern for physicians worldwide despite the limited developments over the past years, particularly for antigens such as mite or Alternaria alternata, and due to the increasing incidence of drug hypersensitivity. Second, the female predominance of autoimmune diseases such as systemic sclerosis is well recognized but enigmatic, and a unifying hypothesis remains elusive. Third, the management of conditions triggered by infectious agents as in Guillain-Barre syndrome or mixed cryoglobulinemia is challenging, and clinical guidelines are needed in the setting of infections and autoimmunity. Fourth, gamma-delta T cells represent major players in innate immunity and are the subject of extensive studies in autoimmune diseases to provide new therapeutic targets for disease prevention or modulation in the near future. Ultimately, we acknowledge the major developments in the broad fields of rheumatology and immunology and expect that microbiota definition, epigenetics studies, and microRNA analysis will provide new exciting avenues toward the understanding and treatment of chronic and acute inflammation.
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Affiliation(s)
- Carlos Dias
- Department of Internal Medicine, Centro Hospitalar São João, 4200-319, Porto, Portugal,
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Lleo A, Zhang W, Zhao M, Tan Y, Bernuzzi F, Zhu B, Liu Q, Tan Q, Malinverno F, Valenti L, Jiang T, Tan L, Liao W, Coppel R, Invernizzi P, Lu Q, Adams DH, Gershwin ME. DNA methylation profiling of the X chromosome reveals an aberrant demethylation on CXCR3 promoter in primary biliary cirrhosis. Clin Epigenetics 2015; 7:61. [PMID: 26150899 PMCID: PMC4491885 DOI: 10.1186/s13148-015-0098-9] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 06/23/2015] [Indexed: 12/15/2022] Open
Abstract
Background Although the etiology of primary biliary cirrhosis (PBC) remains enigmatic, there are several pieces of data supporting the thesis that a strong genetic predisposition and environmental factors interact to produce a selective loss of tolerance. The striking female predominance of PBC has suggested that this sex predisposition may be secondary to epigenetic alterations on the X chromosome. In the present study, we rigorously defined the X chromosome methylation profile of CD4, CD8, and CD14 cells from 30 PBC patients and 30 controls. Genomic DNA from sorted CD4, CD8, and CD14 subpopulations was isolated, sonicated, and immunoprecipitated for analysis of methylation. All products were hybridized to a custom-tiled four-plex array containing 27,728 CpG islands annotated by UCSC and 22,532 well-characterized RefSeq promoter regions. Furthermore, bisulfite sequencing was then used for validation on a subsequent group of independent samples from PBC patients and controls. Thence, expression levels of selected X-linked genes were evaluated by quantitative real-time PCR with cDNA samples from all subjects. Results We report herein that a total of 20, 15, and 19 distinct gene promoters reflected a significant difference in DNA methylation in CD4+ T, CD8+ T, and CD14+ cells in patients with PBC. Interestingly, there was hypermethylation of FUNDC2 in CD8+ T cells and a striking demethylation of CXCR3 in CD4+ T cells, which inversely correlated with CXCR3 expression levels in CD4+ T cells from early-stage PBC patients. Conclusions Our data provides a set of genes with epigenetic alteration likely to be indicators of autoimmunity and emphasizes the role of CXCR3 in the natural history of PBC. Electronic supplementary material The online version of this article (doi:10.1186/s13148-015-0098-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ana Lleo
- Liver Unit and Center for Autoimmune Liver Diseases, Humanitas Clinical and Research Center, Rozzano, Milan Italy
| | - Weici Zhang
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis School of Medicine, Genome and Biomedical Sciences Facility, 451 Health Sciences Drive, Suite 6510, Davis, CA 95616 USA
| | - Ming Zhao
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital, Central South University, Changsha, Hunan People's Republic of China
| | - Yixin Tan
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital, Central South University, Changsha, Hunan People's Republic of China
| | - Francesca Bernuzzi
- Liver Unit and Center for Autoimmune Liver Diseases, Humanitas Clinical and Research Center, Rozzano, Milan Italy
| | - Bochen Zhu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital, Central South University, Changsha, Hunan People's Republic of China
| | - Qian Liu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital, Central South University, Changsha, Hunan People's Republic of China
| | - Qiqun Tan
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital, Central South University, Changsha, Hunan People's Republic of China
| | - Federica Malinverno
- Migliavacca Center for the Study of Liver Disease, 1st Division of Gastroenterology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda - Ospedale Maggiore Policlinico Milano, Milan, Italy
| | - Luca Valenti
- Internal Medicine, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda - Ospedale Maggiore Policlinico Milano, Milan, Italy
| | - Tingting Jiang
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital, Central South University, Changsha, Hunan People's Republic of China
| | - Lina Tan
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital, Central South University, Changsha, Hunan People's Republic of China
| | - Wei Liao
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital, Central South University, Changsha, Hunan People's Republic of China
| | - Ross Coppel
- Department of Microbiology, Monash University, Clayton, Victoria Australia
| | - Pietro Invernizzi
- Liver Unit and Center for Autoimmune Liver Diseases, Humanitas Clinical and Research Center, Rozzano, Milan Italy.,Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis School of Medicine, Genome and Biomedical Sciences Facility, 451 Health Sciences Drive, Suite 6510, Davis, CA 95616 USA
| | - Qianjin Lu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital, Central South University, Changsha, Hunan People's Republic of China
| | - David H Adams
- Centre for Liver Research and NIHR Biomedical Research Unit for Liver Disease, University of Birmingham, Edgbaston, Birmingham, England UK
| | - M Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis School of Medicine, Genome and Biomedical Sciences Facility, 451 Health Sciences Drive, Suite 6510, Davis, CA 95616 USA
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Mousa HS, Lleo A, Invernizzi P, Bowlus CL, Gershwin ME. Advances in pharmacotherapy for primary biliary cirrhosis. Expert Opin Pharmacother 2014; 16:633-43. [PMID: 25543678 DOI: 10.1517/14656566.2015.998650] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Primary biliary cirrhosis (PBC) is a chronic autoimmune liver disease mostly seen in middle-aged women characterized by progressive nonsuppurative destruction of small bile ducts resulting in intrahepatic cholestasis, parenchymal injury and ultimately end-stage liver disease. Despite major breakthroughs in our understanding of PBC, there remains only one FDA-approved agent for treatment: ursodeoxycholic acid (UDCA) to which one-third of patients are unresponsive. AREAS COVERED Biochemical response to treatment with UDCA is associated with excellent survival rates in PBC patients. However, there is a need for alternative treatments for nonresponders. Results from human epidemiological and genetic studies as well as preclinical studies in PBC animal models have provided a strong impetus for the development of new therapeutic agents. In this review, we discuss the recent advances in translational research in PBC focusing on promising therapeutic approaches, namely immune-based targeted therapies and agents targeting the synthesis and circulation of bile acids. EXPERT OPINION We are in a new era for the development of novel therapies for PBC. Data on fibrates, budesonide and obeticholic acid offer encouragement for nonresponders to UDCA.
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Affiliation(s)
- Hani S Mousa
- Humanitas Clinical and Research Center, Liver Unit and Center for Autoimmune Liver Diseases , Rozzano (MI) , Italy
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50
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Abstract
Primary biliary cirrhosis (PBC) is a chronic progressive cholestatic autoimmune liver disease characterized by the destruction of small intrahepatic bile ducts and the presence of highly specific serum antimitochondrial antibodies (AMAs). In this article, we will review the clinical, serological and histopathological features of PBC as well as the advances in the diagnosis and differential diagnosis of PBC. In addition, this article systematically describes the advances in the treatment of PBC, and the treatments include ursodeoxycholic acid (UDCA), budesonide, methotrexate (MTX), farnesoid X receptor (FXR) agonists, cyclosporine A, bezafibrate, rituximab, bone marrow-derived mesenchymal stem cell (BM-MSC) transplantation, and liver transplantation. At present, liver transplantation is the only option with known therapeutic benefit for end-stage PBC patients.
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